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PHASE II STUDY OF ADENOVIRUS/PSA VACCINE IN MEN WITH RECURRENT
PROSTATE CANCER AFTER LOCAL THERAPY
Food and Drug Administration (FDA) Investigational New Drug (IND) \#9706 Department of Defense, Prostate Cancer Research Program \#A-14059.1 Version 50 - January 23, 2015 Co-Principal Investigators David M. Lubaroff, Ph.D.1 Daniel Vaena, MD
Department of Urology Department of Internal Medicine University of Iowa University of Iowa 375 Newton Road 200 Hawkins Drive Iowa City, IA 52242 Iowa City, IA 52242 tel: 319-335-8423 tel: 319-356-3944 e-mail: david-lubaroff@uiowa.edu e-mail: daniel-vaena@uiowa.edu James A. Brown, MD Department of Urology Tel: 319-356-2273 e-mail: james-brown-2@uiowa.edu Mark C. Smith, MD Department of Radiation Oncology Tel: 319-384-6135 e-mail: mark-c-smith@uiowa.edu Michael O'Donnell, MD Department of Urology Tel: 319-384-6981 e-mail: michael-odonnell@uiowa.edu Sundeep Deorah, MD Department of Urology Tel: 319-384-5418 e-mail: sundeep-deora@uiowa.edu Amit Gupta, MD Department of Urology Tel: 319-384-5251 e-mail: amit-gupta-1@uiowa.edu Kenneth Nepple, MD Department of Urology Tel: 319-356-2114 e-mail: kenneth-nepple@uiowa.edu Mary Schall, RN, BSN Holden Comprehensive Cancer Center Tel: 319-356-3516 e-mail: mary-schall@uiowa.edu Karen Clark Griffith, RN, PhD Iowa City Veterans Affairs Health Care System Tel: 319-338-0581, ext. 7519 e-mail: karen.clarkgriffith@va.gov Erica Brown, ARNP Department of Urology Tel: 319-467-5072 e-mail: erica-brown@uiowa.edu Gideon Zamba, PhD Department of Biostatistics Tel: 319 384-5020 e-mail: gideon-zamba@uiowa.edu Steven Varga, PhD Department of Microbiology Tel: 319-335-774 e-mail: steven-varga@uiowa.edu Pamela Zehr, RN, MA Holden Comprehensive Cancer Center Tel: 319-353-8914 e-mail: pamela-zehr@uiowa.edu 1 Please send all communications to this investigator.  
Co-Investigators  
| Investigational Pharmacist                                                                           |                 |
|------------------------------------------------------------------------------------------------------|-----------------|
| Kristine Johnson, BS, RPh Pharmacy Department  Tel: 319-353-7077 e-mail: kristine-johnson@uiowa.edu  | Medical Monitor |
| Daniel Berg, MD Holden Comprehensive Cancer Center Tel: 319-353-7800 e-mail: daniel-j-berg@uiowa.edu |                 |  
The Principal Investigator is funding this clinical trial through an award from the Department of Defense Prostate Cancer Research Program.  
| INDEX                                            |       |
|--------------------------------------------------|-------|
| Section                                          | Pages |
| Introduction                                     | 4-14  |
| Objectives                                       | 14    |
| Patient Selection                                | 15,16 |
| Registration Procedures                          | 16,17 |
| Research Intervention Plan                       | 17,18 |
| Adverse Events                                   | 18-20 |
| Measurement of Clinical and Immunological Effect | 20-22 |
| Study Parameters                                 | 22-26 |
| Drug Formulation and Procurement                 | 27-29 |
| Statistical plan                                 | 29,30 |
| Addendum                                         | 30,31 |
| Roles and Responsibilities of Study Personnel    | 31,32 |
| Literature References                            | 32-36 |
| Footnote                                         | 36,37 |
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1. introduction 1.1 background- immunotherapy

Prostate cancer is the second leading cause of cancer death among males in the United States. There will be an estimated 234,460 new diagnoses of prostate cancer made in the United States in 2006 (1) (the estimates for 2006 were not available at the time of the protocol completion). Treatments for organ-confined prostate cancer include radical prostatectomy and radiation therapy. When the cancer presents de novo, or recurs outside the prostate, first-line systemic treatments typically include hormonal blockade (with LHRH agonists or bilateral orchiectomy), which suppress testosterone levels, limit the growth of androgen-dependent cancer cells, and result in clinical tumor control. After a median time of 2 years, patients progress into a clinical hormone-refractory state, when the prostate specific antigen (PSA)
levels rise despite castration, there is proliferation of androgen-independent cancer cells, and there is continued clinical tumor growth that becomes fatal. Therapeutic measures in this situation include further hormonal manipulations or the use of systemic chemotherapy, which has recently shown a small survival benefit in phase III trials. Approximately 30,000 Americans die from prostate cancer each year.  
Immunotherapeutic approaches against prostate cancer have been investigated for several years. Most of these studies have concentrated on active non-specific therapy and adoptive or passive therapy, with only recent focus on the induction of antigen-specific immune responses. Viral vectors have been used successfully in both gene transfer and vaccine therapy studies (2). Replication-competent and replication-deficient adenoviruses expressing foreign proteins have been used to elicit immune responses to a variety of tumor antigens (3-7).  
We have demonstrated that immunizations with adenovirus, carrying the human PSA gene, can induce vigorous anti-PSA T-cell responses and cause the destruction of PSA-secreting tumors in a pre-clinical mouse model of prostate cancer (8,9). Such active immunization against prostate-cancer associated antigens might be more effective than active non-specific or adoptive/passive immunotherapy. Therefore, we have pursued a vaccination strategy based on an adenovirus that carries the gene for prostate specific antigen (PSA). Results from our Phase I trial of adenovirus/PSA (Ad/PSA) vaccine (section 1.4, below) demonstrated that a single immunization of men with metastatic prostate cancer was able to induce anti-PSA T cell responses. The trial design was a dose escalation study with the vaccine administered subcutaneously (sc) either in an aqueous solution or in a collagen matrix (Gelfoam®). We now propose a Phase II clinical trial using the Ad/PSA vaccine, administered in multiple injections to prostate cancer patients with minimal disease burden.
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1.2 adenovirus vectors

Recombinant adenoviral vectors transduce a wide range of dividing and nondividing cells types, making this gene delivery system valuable as a tool for studying diseases, for vaccine therapy, and for potential clinical use (10). Recombinant adenovirus can be prepared and purified in high titers. In addition, wild-type adenovirus infections are extremely common in the general population, giving adenovirus a well-documented safety record (11). Moreover, adenoviruses are structurally stable and no adverse effects have been reported following the vaccination of US military recruits with wild types, demonstrating their safety for human use (11). Adenoviral vectors for gene therapy and vaccine therapy are adenoviruses which have been genetically modified to allow insertion of foreign genes and to render the virus replicationdefective. Current vectors have a deletion in the E1 region or in both the E1 and E2 regions.  
Adenoviral gene transfer has been used in a variety of experimental conditions that include transfers to the liver (12), lung (13), central nervous system (14,15), and to cancer cells (16).  
There is evidence that the introduction of foreign transgenes by adenovirus induces immune responses to the transgene product, which become ultimately responsible for the elimination of the virus (17,18). While this is disadvantageous for insertion of functional genes into host cells, it is advantageous in the use of viruses carrying foreign genes as immunogens. In the vaccine therapy of cancer, active immunization against a murine colon cancer, breast cancer, and melanoma antigens have been induced by adenoviral vaccines (19-25).  
The Ad/PSA vaccine used our laboratory and in our Phase I clinical trial was produced by inserting the gene for the full length pre-pro form of human PSA into a replication deficient adenovirus serotype 5. Replication deficiency was induced by deletion of the E1a and E1b genes of the virus. Details of the vaccine can be found in section 9 of this protocol. Approval for the use of the vaccine in the Phase I trial was obtained from the FDA under IND \#9706.  
In pre-clinical studies, our group has demonstrated that the Ad/PSA vaccine was able to induce stronger anti-PSA immune responses than other viral PSA vaccines. These include vaccinia viruses, both replication competent and replication deficient, and to a canarypox vaccine (Table 1), The frequency of PSA-specific CD8+ cells T cells generated by the Ad/PSA vaccine was greater than were generated by any of the other vaccines tested.. In addition to the superior immunizing property of the Ad/PSA, the incorporation of Gelfoam, a collagen matrix
(section 1.3), has been shown in pre-clinical studies to enhance the ability of the vaccine to induce strong anti-PSA immune responses (8). Lastly, immunization of mice with Ad/PSA in matrix can induce anti-PSA responses even in the presence of high titer anti-adenovirus antibodies (8). This latter finding is important in light of the fact that most humans have preexisting levels of anti-adenovirus antibodies as a result of prior natural exposure to the virus.  
| Vaccine   | Virus                            | Frequency of PSA-Specific  CD8+ T Cells   |
|-----------|----------------------------------|-------------------------------------------|
| Ad/PSA*   | Replication deficient adenovirus | 1/455                                     |
| Prostvac  | Replication competent vaccinia   | 1/2028                                    |
| NYVAC/PSA | Replication deficient vaccinia   | 1/3597                                    |
| ALVAC/PSA | Canarypox                        | 1/35,714                                  |
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1.3 gelfoam matrix

Gelfoam (Pharmacia & Upjohn Company, Kalamazoo, MI) is a medical device intended for application to bleeding surfaces as a hemostatic agent. It is a water-insoluble, off-white, nonelastic, porous, pliable product prepared from purified pork skin. The Gelfoam gelatin preparation is available either as a cross-linked sponge or as non-cross linked beads. It is able to absorb and hold within its interstices approximately 45 times its weight of blood and other fluids (26). The absorptive capacity of Gelfoam is a function of its physical size, increasing with increasing gelatin volume (27).  
The mechanism of action of surface-mediated hemostatic devices is supportive and mechanical (27). Surface-acting devices, when applied directly to bleeding surfaces, arrest bleeding by the formation of an artificial clot and by producing a mechanical matrix that facilitates clotting (28). Jenkins et al have theorized that the clotting effect of Gelfoam may be due to release of thromboplastin from platelets, occurring when platelets entering the Gelfoam become damaged by contact with its myriad of interstices (29). Thromboplastin interacts with prothrombin and calcium to produce thrombin, and this sequence of events initiates the clotting reaction. The authors suggest that the physiologic formation of thrombin in Gelfoam is sufficient to produce formation of a clot, by its action on the fibrinogen in blood (29). The spongy physical properties of Gelfoam hasten clot formation and provide structural support for the forming clot (28,30).  
Gelfoam has been used experimentally for the delivery of soluble proteins and drugs, including insulin, antibiotics, and growth factors (31-33). Gelfoam was used for sustained release of insulin in an ocular implant device (31). Delivery of insulin in solution had no effect on blood glucose levels. In contrast, the use of Gelfoam as a sustained release delivery agent provided measurable insulin activity for up to 10 hours after implantation. Glucose levels in the blood stabilized at 60% of the original value, whereas administration of insulin in eye drops had no effect.  
MacDonald and Mathews (34) studied Gelfoam implants in canine kidneys and reported that it assisted in healing, with no marked inflammatory or foreign-body reactions. Jenkins and Janda (35) studied the use of Gelfoam in canine liver resections and noted that Gelfoam appeared to offer a protective cover and provide structural support for the reparative process. Correll et al (36) studied the histology of Gelfoam when implanted in rat muscle and reported no significant tissue reaction.  
Gelfoam has been used as a hemostatic agent in dog prostate (37). In these studies no gross histological evidence of tissue damage or calcification was induced. In addition, these investigators demonstrated that placement of Gelfoam into the lumen of the bladder resulted in liquefaction of the Gelfoam without any evidence of calculogenesis. Finally, Bischoff and Goerttler (38) used Gelfoam in human prostate therapeutic embolization with success.  
Our laboratory, in collaboration with Dr. Timothy Ratliff, has demonstrated that administration of the Ad/PSA vaccine in Gelfoam induces a stronger anti-PSA immune response (Figure 1). In our pre-clinical studies, immunization with the vaccine in an aqueous suspension induces strong immunity with 109 pfu with weaker immunity induced with 108 and 107 pfu. Use of Gelfoam permits the induction of strong responses at the lower dose of 108 pfu. In addition, strong anti-PSA T cell responses could be induced by immunization with the Ad/PSA vaccine in Gelfoam even in mice pre-immunized to adenovirus (Figure 2). In the Phase I clinical trial (section 1.4), the addition of Gelfoam to the vaccine immunization did not result in excess serious adverse events.
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1.4 phase i study

A Phase I clinical trial of the Ad/PSA vaccine has been completed in men with measurable metastatic prostate cancer, with the primary objectives of determining the toxicity profile and maximal tolerated dose (MTD). The ability of the vaccine to induce anti-PSA immune responses and any clinical responses was also evaluated. Funding for the Phase I trial was provided by multiple sources that include the Holden Comprehensive Cancer Center, the Department of Urology, and the Carver College of Medicine at the University of Iowa.  
Eligible patients consisted of men with prostate cancer that had measurable metastatic disease, 90% of whom were stage D3. Prior therapies had included androgen withdrawal, ketaconazole, prednisone, Casodex, Taxotere, and external beam radiation, but the initiation of vaccine therapy was equal to, or greater than, 30 days after the most recent therapy. Patients were treated in successive dose levels and aqueous vs. matrix cohorts, according to the protocol plan. We were able to administer the maximum permitted dose of 108 pfu without any serious adverse events by vaccination of the first of 18 patients. These initial 18 patients were followed throughout the one-year period after injection. An additional 14 patients were treated at the MTD dose level, as planned in the protocol and confirmed by a letter to the FDA. The purpose of the additional patients was to have sufficient numbers of patients in the groups to statistically evaluate the anti-PSA immune responses induced by the Ad/PSA vaccine. In summary, 32 patients were treated in the study followed through the one-year period. Two additional patients were enrolled in the study (total number of enrolled patients, 34) but never received the vaccine and were therefore not evaluable. One patient chose to have radiation therapy instead of participating in the trial and the second was diagnosed with a second malignancy (melanoma) shortly after his enrollment in the phase I study.
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1.4.1 phase i study results

The median age of the patients was 70.2 years (range, 52 to 89). The vaccine was administered as an aqueous suspension or in a collagen (Gelfoam) matrix to 32 patients. Sixteen (16/32) or 50% of the patients exhibited grade 1 vaccine-related adverse events (AE),
1/32 (3.1%) that exhibited a grade 2 AE, and one patient exhibited a grade 3 AE which was a decrease in neutrophil count. There were no vaccine-related grades 4 or 5 AEs.  
Patient System Day of  
onset*  
Event **Vaccinerelated**  
AP005 Neural 21 Agitation No AP006 Musculoskeletal 13 Left hip and thigh pain No AP007 Musculoskeletal 22 Left back pain No AP007 Neural 14 Situational depression No AP009 GI 21 Constipation No AP009 Musculoskeletal 14 Joint aches, secondary to fall No AP009 Neural 11 Fall, causing head lacerations & loss  
of consciousness  
No  
AP010 GU 21 Proteinuria No AP010 Skin 21 Edema No AP014 Constitutional 22 Fatigue No AP014 Musculoskeletal 14 Leg pain (bone - femur) No AP015 Respiratory 1 Cough No AP016 GU 172 Left nephrolithiasis No AP016 GU 183 New primary tumor - papillary bladder No AP016 Immune 8 Flu-like symptoms No AP016 Musculoskeletal 4 Bone pain - left leg No AP016 Musculoskeletal 21 Decreased left leg strength No AP018 Musculoskeletal 8 Bilateral rib pain No AP018 Neural 8 Insomnia No AP020 Neural 168 cord compression No AP022 GI 2 Constipation No AP022 Hematologic 14 decreased lymphocyte count No AP022 Hematologic 63 decreased WBC & neutrophils No AP022 Musculoskeletal 5 increased bone pain No AP022 Neural 16 Depression No AP023 Musculoskeletal 20 pain in left buttocks No AP025 Musculoskeletal 16 bone pain No AP026 Cardiovascular 14 Lower extremity edema No AP027 GI 1 GI cramping No AP027 GI 1 Constipation No AP034 Respiratory prior Edema, wheezing (change in inhaler  
in same time period)  
No  
AP035 Constitutional 64 Weight loss No AP035 GI 50 Constipation No AP035 GU 22 Proteinuria No AP035 Hematologic 15 Lymphopenia No AP035 Musculoskeletal 22 Increased alkaline phosphatase No AP037 GI 73 Nausea No AP018 Skin 1 Injection site tenderness Possible AP019 Cardiovascular 1 Hypotension Possible AP019 Constitutional 1 Fever Possible AP019 Constitutional 14 Fatigue Possible AP019 GU 1 Proteinuria Possible AP020 GI 21 increased alkaline phosphatase Possible AP020 GU 21 Ketonuria Possible  
Table 2 Ad/PSA Phase I Trial Adverse Events - by Vaccine Relationship  
| AP020                                                   | Metabolic       | 14   | Hyponatremia                                                                                                                               | Possible   |
|---------------------------------------------------------|-----------------|------|--------------------------------------------------------------------------------------------------------------------------------------------|------------|
| AP020                                                   | Metabolic       | 14   | Hyperglycemia                                                                                                                              | Possible   |
| AP020                                                   | Respiratory     | 9    | viral symptoms                                                                                                                             | Possible   |
| AP005                                                   | Musculoskeletal | 1    | Left inguinal pain                                                                                                                         | Possible   |
| AP008                                                   | GU              | 21   | Proteinuria                                                                                                                                | Possible   |
| AP008                                                   | Respiratory     | 3    | Cold symptoms                                                                                                                              | Possible   |
| AP010                                                   | Hematologic     | 1    | Decrease in absolute neutrophils                                                                                                           | Possible   |
| count                                                   |                 |      |                                                                                                                                            |            |
| AP027                                                   | Liver           | 21   | increased AST                                                                                                                              | Possible   |
| AP036                                                   | Hematologic     | 1    | Anemia                                                                                                                                     | Possible   |
| AP036                                                   | Hematologic     | 63   | Anemia                                                                                                                                     | Possible   |
| AP037                                                   | Hematologic     | 1    | Lymphopenia                                                                                                                                | Possible   |
| AP002                                                   | Musculoskeletal | 3    | Groin pain                                                                                                                                 | Unlikely   |
| AP002                                                   | Neural          | 3    | Headache                                                                                                                                   | Unlikely   |
| AP002                                                   | Skin            | 1    | Itching                                                                                                                                    | Unlikely   |
| AP003                                                   | Pulmonary       | 21   | Pleural effusion                                                                                                                           | Unlikely   |
| AP006                                                   | Constitutional  | 14   | Chills                                                                                                                                     | Unlikely   |
| AP006                                                   | Neural          | 14   | Migraine headache                                                                                                                          | Unlikely   |
| AP012                                                   | Cardiovascular  | 21   | Hypotension                                                                                                                                | Unlikely   |
| AP012                                                   | GI              | 0    | Heartburn                                                                                                                                  | Unlikely   |
| AP012                                                   | Neural          | 21   | Dizziness                                                                                                                                  | Unlikely   |
| AP014                                                   | Hematologic     | 82   | Anemia                                                                                                                                     | Unlikely   |
| AP015                                                   | Cardiovascular  | 137  | Myocardial infarction                                                                                                                      | Unlikely   |
| AP018                                                   | Respiratory     | 43   | DOE?                                                                                                                                       | Unlikely   |
| AP021                                                   | Hematologic     | 1    | decreased lymphocytes                                                                                                                      | Unlikely   |
| AP021                                                   | Hematologic     | 63   | thrombocytopenia                                                                                                                           | Unlikely   |
| AP023                                                   | Immune          | 16   | urinary tract infection                                                                                                                    | Unlikely   |
| AP023                                                   | Liver           | 21   | elevated AST                                                                                                                               | Unlikely   |
| AP024                                                   | Hematologic     | 14   | Anemia                                                                                                                                     | Unlikely   |
| AP024                                                   | Hematologic     | 1    | Anemia                                                                                                                                     | Unlikely   |
| AP025                                                   | GI              | 85   | abdominal distention, constipation,  apparently related to metastatic  disease in the periaortic lymph nodes  and periprostatic tumor mass | Unlikely   |
| AP025                                                   | Hematologic     | 14   | thrombocytopenia                                                                                                                           | Unlikely   |
| AP025                                                   | Neural          | 122  | Headache                                                                                                                                   | Unlikely   |
| AP027                                                   | Immune          | 21   | Infection                                                                                                                                  | Unlikely   |
| AP034                                                   | Cardiovascular  | 14   | Hypotension/dizziness                                                                                                                      | Unlikely   |
| AP034                                                   | Musculoskeletal | 14   | Back pain                                                                                                                                  | Unlikely   |
| AP036                                                   | Cardiovascular  | 63   | Edema - bilateral ankles                                                                                                                   | Unlikely   |
| AP002                                                   | Skin            | 0    | hematoma at injection site                                                                                                                 | Yes        |
| AP003                                                   | Skin            | 0    | Bruising at injection site                                                                                                                 | Yes        |
| AP004                                                   | Skin            | 0    | Ecchymosis at injection site                                                                                                               | Yes        |
| AP005                                                   | Skin            | 0    | Ecchymosis and erythema at injection                                                                                                       | Yes        |
| site                                                    |                 |      |                                                                                                                                            |            |
| AP008                                                   | Skin            | 0    | Ecchymosis at injection site                                                                                                               | Yes        |
| AP009                                                   | Skin            | 0    | Ecchymosis at injection site                                                                                                               | Yes        |
| AP018                                                   | Skin            | 0    | Ecchymosis                                                                                                                                 | Yes        |
| AP025                                                   | Skin            | 0    | Ecchymosis at injection site                                                                                                               | Yes        |
| AP026                                                   | Skin            | 0    | Erythema at injection site                                                                                                                 | Yes        |
| AP034                                                   | Skin            | 0    | Pain at injection site                                                                                                                     | Yes        |
| * day 0 = day of injection; day 1 = day after injection |                 |      |                                                                                                                                            |            |  
We measured the anti-PSA immune responses, both antibody and T cell, in all patients enrolled in the study. Antibody responses to PSA were measured by the binding to PSAsecreting cell lines using the method adapted from Cavacini, et al. (39). Results of those analyses demonstrated that 57% of men immunized with the Ad/PSA vaccine developed measurable anti-PSA antibodies. ELISPOT assays were utilized to measure anti-PSA T cell responses. The results, depicted in Table 3, demonstrate that of the 32 patients, 18 (56.3%)
developed anti-PSA T cell responses. The addition of Gelfoam did not appear to affect the development of anti-PSA responses, but in this Phase I study the numbers of patients in each group was too small to make statements of statistical significance of the data. These results demonstrate the ability of men with late stage metastatic prostate cancer, injected one time with Ad/PSA, to respond to the vaccine with the production of anti-PSA T cells.  
| Table 3                                              |             |                  |                    |           |
|------------------------------------------------------|-------------|------------------|--------------------|-----------|
| ELISPOT Analysis of Anti-PSA T Cell Immune Responses |             |                  |                    |           |
| Patient                                              | Dose/       | Response         | Frequency          |           |
| Number                                               | Vehicle     | Pre-Immunization | Post- Immunization |           |
| AP-002                                               | 106-aqueous | -                | 1/985,000          | 1/258,571 |
| AP-004                                               | 106-aqueous | -                | 0                  | 1/311,111 |
| AP-007                                               | 106-aqueous | +                | 1/46,901           | 1/14,804  |
| AP-003                                               | 106-matrix  | +                | 1/90,000           | 1/8075    |
| AP-005                                               | 106-matrix  | +                | 1/1.2x106          | 1/152,353 |
| AP-006                                               | 106-matrix  | +                | 1/93,103           | 1/15,762  |
| AP-008                                               | 107-aqueous | -                | 1/100,000          | 1/97,419  |
| AP-010                                               | 107-aqueous | -                | 0                  | 0         |
| AP-013                                               | 107-aqueous | +                | 0                  | 1/60,000  |
| AP-009                                               | 107-matrix  | +                | 1/52,535           | 1/30,566  |
| AP-012                                               | 107-matrix  | -                | 1/13,488           | 1/254,286 |
| AP-014                                               | 107-matrix  | +                | 1/562,500          | 1/120,000 |
| AP-015                                               | 108-aqueous | +                | 1/1.4x106          | 1/780     |
| AP-016                                               | 108-aqueous | +                | 0                  | 1/130,000 |
| AP-017                                               | 108-aqueous | +                | 0                  | 1/124,375 |
| AP-025                                               | 108-aqueous | -                | 0                  | 0         |
| AP-026                                               | 108-aqueous | -                | 0                  | 1/560,000 |
| AP-027                                               | 108-aqueous | +                | 0                  | 1/26,364  |
| AP-029                                               | 108-aqueous | +                | 0                  | 1/333     |
| AP-032                                               | 108-aqueous | +                | 1/250,000          | 1/3793    |
| AP-018                                               | 108-matrix  | -                | 0                  | 0         |
| AP-019                                               | 108-matrix  | +                | 1/14,235           | 1/336     |
| AP-020                                               | 108-matrix  | +                | 1/8824             | 1/1802    |
| AP-021                                               | 108-matrix  | +                | 1/689              | 1/431     |
| AP-022                                               | 108-matrix  | +                | 0                  | 1/180,000 |
| AP-023                                               | 108-matrix  | -                | 1/320,000          | 0         |
| AP-030                                               | 108-matrix  | +                | 1/666.667          | 1/32,000  |
| AP-034                                               | 108-matrix  | +                | 1/80,000           | 1/15,152  |
| AP-035                                               | 108-matrix  | +                | 1/5295             | 1/2459    |
| AP-036                                               | 108-matrix  | +                | 1/62,000           | 1/9487    |
| AP-037                                               | 108 matrix  | -                | 1/2.1x106          | 1/965,000 |  
The effects of vaccination on serum PSA and on patient survival were also evaluated as a secondary endpoint in the phase I trial. Although there was no sustained decline in individual PSA levels, the PSA doubling times (PSADT, calculated based on 3 pre-enrollment consecutive PSA measurements) were reduced in 54 percent of the patients compared to pre-vaccine administration, with the best responses occurring in patients immunized with the highest dose of the vaccine (Table 4). In addition, published survival nomograms for patients with hormone refractory prostate cancer were applied to patients in this phase I trial (40,41). Table 5 shows that 57% of all patients at all doses, whether injected with the vaccine as an aqueous suspension or in the collagen matrix, had a survival time longer than that predicted by the nomogram. The range of increased survivals in the different groups was 33% to 100%.  
Table 4  
PSA Doubling Time (DT) in Phase I Patients  
Vaccine Dose & Vehicle **Percent Increased PSA DT**  
| PSA Doubling Time (DT) in Phase I Patients   |                          |
|----------------------------------------------|--------------------------|
| Vaccine Dose & Vehicle                       | Percent Increased PSA DT |
| 106 aqueous                                  | 33%                      |
| 106 matrix                                   | 33%                      |
| 107 aqueous                                  | 67%                      |
| 107 matrix                                   | 67%                      |
| 108 aqueous                                  | 25%                      |
| 108 matrix                                   | 62%                      |
| Total                                        | 54%                      |  
| Ad/PSA Phase I Trial                  |         |                     |
|---------------------------------------|---------|---------------------|
| Predicted and Actual Patient Survival |         |                     |
| Vaccine Dose                          | Vehicle | Percent with Longer |
| Than Predicted Survival               |         |                     |
| 106                                   | Aqueous | 33%                 |
| 106                                   | Matrix  | 67%                 |
| 107                                   | Aqueous | 100%                |
| 107                                   | Matrix  | 33%                 |
| 108                                   | Aqueous | 56%                 |
| 108                                   | Matrix  | 50%                 |
|                                       | Overall | 57%                 |
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1.5 other immunotherapy clinical trials

The last several years have seen an increase in the number of clinical trials using vaccine immunotherapy for the treatment of prostate cancer. The trials have used a variety of target antigens that have been shown to be associated with prostate and prostate cancer cells. These include PSA (39,42-49), prostatic acid phosphatase (PAP) (50-53), prostate specific membrane antigen (PSMA) (54-56), telomerase (hTERT) (57,58), Thomsen-Friedenreich antigens (59),
mucins (60), carbohydrates (61), and HLA-associated peptides (62). A variety of vectors have been used in the immunization process that include dendritic cells (45,50-58,63), vaccinia virus (39,42,43,47,49), fowlpox virus (39,47), liposomes (44), plasmids, (48), and chemical conjugates (59-61).  
Recently, Kaufman et al. recently reported the results of a phase II trial (ECOG 7897) with a prime/boost vaccine using vaccinia virus and fowlpox virus expressing human PSA in patients with hormone-dependent prostate cancer (64). Sixty-four eligible patients with biochemical progression after local therapy were randomly assigned to three treatment arms: (A) fowlpoxPSA (rF-PSA) by intramuscular injection every six weeks for four doses, (B) rF-PSA for three doses followed by vaccinia-PSA (rV-PSA) given by intradermal injection, or (C) rV-PSA followed by three rF-PSA vaccines. Dreicer et al. reported a randomized phase II study with a recombinant Modified Vaccinia Ankara virus which expresses both MUC1 and IL2 (TG4010) (65). MUC1 is a glycoprotein associated with several malignancies. Eligible patients were required to have no evidence of metastatic disease following curative intent local therapy, evidence of PSA failure (PSA over 2 ng/ml) and PSA doubling time (PSA-DT) less than 10 months. Arm 1 had TG4010 injected sc weekly, at a dose of 108 pfu, for six weeks, then every three weeks. Arm 2 had 108 pfu TG4010 injected sc every three weeks. Therapy was continued to disease progression or to a maximum of 36 weeks. Lastly, Small et al. recently presented the results of a phase III trial with APC8015, an immunotherapy cellular product consisting of autologous peripheral blood mononuclear cells enriched for a dendritic cell fraction pulsed with PA2024, a Prostatic Acid Phosphatase (PAP)-GM-CSF construct (66). Patients with asymptomatic, metastatic hormone-refractory prostate cancer were randomized (2:1) to receive APC8015 (n=82) or placebo (n=45) every 2 weeks x 3.  
ECOG is currently planning a phase III trial using the Vaccinia virus (PROSTVACV/TRICOM) followed by Fowlpox virus vaccination (PROSTVAC-F/TRICOM) with GM-CSF,
compared with placebo vaccine plus GM-CSF in patients with hormone-refractory prostate cancer with absence of metastatic disease (ECOG 1805, PARADIGM).  
In summary, the results from these trials vary in terms of patient populations studied
(hormone dependent vs. independent) and in levels of positive results, which include the induction of antigen-specific immune responses, decreases in levels of serum PSA and in rates of change in PSA velocity, and measures of clinical responses. Thus far no single vaccine immunotherapy has proven to be definitely superior to others in terms of clinical benefit, and other phase II and III trials continue to be planned or conducted. The results of some of these vaccine trials raise the question that an increase in PSADT may in the future represent a possible surrogate marker for increased time to progression, or overall survival in immunotherapy studies, and that absolute PSA responses may not constitute an obligatory step for the ultimate demonstration of clinical benefit of immunotherapy approaches in prostate cancer. Furthermore, the T-cell stimulation index may have important correlation with clinical vaccine efficacy, as seen in the phase III trial by Small et al.(66). These developing notions further support the current proposal for clinical development of our Ad/PSA vaccine, also based on the results of our prior phase I trial.
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1.6 proposed phase ii clinical

Based on the significant pre-clinical activity of the Ad/PSA vaccine in generating tumorspecific T cells, and the encouraging safety and efficacy results from our phase I study, we propose to continue the clinical development of the Ad/PSA vaccine with the performance of the current phase II trial. It is our contention that the vaccine product and the method of immunization set this therapy apart from other ongoing prostate cancer investigational immunotherapeutic approaches. Specifically, the incorporation of Gelfoam, not present in other vaccine preparations, enhances the induction of strong anti-PSA responses. Immunization of mice with Ad/PSA in Gelfoam matrix was able to induce anti-PSA responses even in the presence of high-titer anti-adenovirus antibodies. Notably, most humans naturally possess high titers of anti-adenovirus antibodies due to natural exposure to adenoviruses.  
We plan to enroll prostate cancer patients into one of two arms (A & B) of the Phase II
clinical trial. The ideal patient population to determine a therapeutic benefit of a new treatment, particularly immunotherapy, is one with minimal disease burden. The low tumor burden should allow therapies, particularly those relying on antigen-specific effector T lymphocytes, to destroy all of the cancerous tissues and cells. The first therapeutic arm (Arm A) will enroll men with recent evidence of recurrence following surgery or radiation therapy for their primary tumor. Patients in the population will be eligible if they exhibit at least three separate rises in serum PSA, at least one month apart with differences >0.03 ng/ml and a total PSA of >0.2 ng/ml; have a PSA doubling time of >6 months; are not at high risk or if they refuse treatment with Taxotere or radiation. A high risk patient is defined below. All patients will be hormone naïve, meaning that they may not have had prior systemic therapies for prostate cancer (hormonal therapy, including but not limited to LHRH agonists, antiandrogens, ketoconazole or chemotherapy - mitoxantrone/taxanes/estramustine, etc.) unless they stopped hormone therapy two or more years prior to enrollment and currently have normal testosterone levels.. Since standard therapy for these patients would be to postpone androgen ablation therapy until such time as there is a high serum PSA level (>20 ng/ml), enrolling patients into this Phase II trial does not withhold accepted treatment. Patients will be excluded from the trial if they refuse salvage radiation therapy or had greater than two positive margins at surgery, or positive lymph nodes.  
The second therapeutic arm (Arm B) will enroll men with recurrent disease who will undergo androgen depletion therapy. The choice of this additional patient population is based upon published documentation that inflammation and the generation of immune responses are augmented by hormone withdrawal (67-69). Mercader, et al., in attempts to demonstrate an enhanced termination of tolerance to prostate associated antigens documented CD4+ and CD8+ T cell infiltrates in benign prostates and in prostate tumors of men undergoing androgen withdrawal (67). Roden and co-workers published data demonstrating that T cell levels and T cell proliferation were increased in mice following castration (68) while Drake, et al. reported breaking tolerance to antigens associated with the TRAMP prostate tumors in mice (69). Therefore, we propose to vaccinate men beginning 14 days after the initiation of androgen depletion therapy using the same three injection protocol.  
As part of consideration for enrollment, the study will only enroll subjects for whom androgen depletion therapy or deferral of such treatment are considered standard of care options. In addition, in order to be considered for the study, patients must be willing to be in either study group (Arm A or Arm B). Randomization of patients to Arm A (vaccine only) or Arm B (ADT plus vaccine) will be 1:1. Fifty (50) patients will be enrolled, 25 in each Arm of the study. Twenty five
(25) cards will be printed for Arm A and 25 cards printed for Arm B and all 50 cards will be placed in a container. Following the determination of eligibility of each patient and administration of the Informed Consent document, a card will be drawn to determine which Arm of the study the patent is entered.  
We will enroll and treat patients at two affiliated and adjacent medical centers, the University of Iowa Hospitals and Clinics (UIHC) and the Iowa City Veterans Affairs Health Care System (IC VAHCS). There is a single Institutional Review Board (IRB) that approves protocols for both institutions. After the University of Iowa's IRB has approved the protocols the Research and Development Committee of the IC VAHCS meets to provide their approval for the study.  
Patient Recruitment: The UIHC and IC VAHCS draw from a large catchment area that will ensure the enrollment of sufficient numbers of men into the protocol. We will use recruitment methods similar to the methods used to obtain subjects for our Phase I clinical trial. That includes contacting patients that are being or have been treated in the Departments of Urology, Internal Medicine, and Radiation Oncology at the UIHC and IC VAHCS and letters written to urologists, oncologists, and medical oncologists in Iowa and the neighboring states of Wisconsin, Illinois, Missouri, Nebraska, Minnesota, and South Dakota. Drs. J. Brown and M. O'Donnell and ARNP E. Brown will assist in the recruitment of patients from the Department of Urology, Dr. Vaena from Internal Medicine, and Dr. Smith from Radiation Oncology. Additional recruitment of patients will occur through a referral collaboration with Mercy Medical Center, Des Moines, IA (Hereafter referred to as DMMCC). Once accrual has been completed, no further recruitment methods will be utilized.  
A physician from outside the UIHC or IC VAHCS may inform patients of the study. If a patient expresses interest in learning more about the trial, the physician will provide him with contact information for the clinical trial team. When a patient contacts the clinical trial team, a member of the trial team will briefly describe the study and request the patient's mailing address in order to mail him a copy of the study informed consent form.  
After the patient has had time to become familiar with the study and discuss it with his family, a member of the research team will follow up with a telephone call to discuss the study and answer any questions the patient may have. Of particular importance is the patient's understanding that he will be assigned to one of two arms in the protocol, vaccine alone or androgen deprivation therapy followed by vaccine. At this time, if the patient is still interested in participating, he will be asked to provide verbal consent to allow the research team to review information from his medical record to evaluate his eligibility for the trial. The researcher will document the verbal consent process in the research file, and will contact the patient's physician to request the medical record for review. The patient will be required to sign a HIPAA privacy form and a Release of Medical Information form at his physician's office prior to the physician releasing his records to the research team.  
After reviewing the relevant portions of the medical record, a member of the research team will again contact the patient. Eligible individuals will be scheduled for a visit to the UIHC or IC VAHCS to undergo additional eligibility testing. At that visit, informed consent for participation in the clinical trial will be obtained. The subject will then be further evaluated for study eligibility through a medical history and physical exam, blood tests, and scans. Final determination of eligibility will occur at a weekly meeting of the clinical trial team.
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2. objectives 2.1 primary objective

To evaluate the development of anti-PSA immune responses in study patients, of particular importance is the comparison of immune responses generated in the hormone naïve and ADT patients.
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2.2 secondary objectives

2.2.1 To evaluate the response rates (PSA responses and changes in PSADT) of the Ad/PSA vaccine using a prime-boost immunization strategy, in patients with recurrent disease, either hormone naïve or during androgen deprivation therapy
(ADT).  
2.2.2 To evaluate biochemical (PSA recurrence) and radiographic (bone scans) time to progression and overall survival in evaluable patients receiving the Ad/PSA vaccine.
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3. selection of patients

As described in Section 1.6 prostate cancer patients will be enrolled in one of two arms of the study. All men will have recurrent disease and who are considered hormone naïve, having received no prior hormonal therapy except as allowed in section 3.2.9. Following the determination of eligibility to participate in the protocol, one group of patients will receive the Ad/PSA vaccine alone (Arm A) and a second group of patients will begin androgen deprivation therapy with vaccination beginning fourteen days later (Arm B).
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3.1 inclusion criteria

3.1.1 Men with prostate cancer who have received prior local therapy (radical prostatectomy or definitive radiation therapy) and have biochemical (PSA) relapse without evidence of radiographic or clinical metastatic disease.  
3.1.2 For men who had prior prostatectomy, the surgery must have occurred at least 6 months prior to initiation of treatment.  
3.1.3 For men who had prior definitive radiation therapy, radiation must have been completed at least 1 year prior to initiation of treatment.  
3.1.4 Exhibit at least three separate rises in serum PSA, at least one month apart with differences >0.03 ng/ml and a total PSA of >0.2 ng/ml.  
3.1.5 Have a PSA doubling time of >6 months if the baseline serum PSA was >2 ng/ml.  
3.1.6 Negative bone scans.  
3.1.7 Negative CT scans of abdomen and pelvis (no evidence of soft tissue lesions >1 cm).
3.1.8 Scans must be obtained within 6 weeks of entry into the trial (initiation of treatment).  
3.1.9 Written informed consent. 3.1.10 Age > 18 years. 3.1.11 Required laboratory values [obtained within 2 weeks of study entry (initiation of treatment)]
3.1.12.1 Serum creatinine < 2.0 mg/dL
3.1.12.2 Adequate hematologic function: granulocytes > 1800 per mm3, platelets > 100,000 per mm3, WBC >3700, and lymphocytes >590.  
3.1.12.3 Adequate hepatocellular function: AST <3x ULN and total bilirubin
<1.5 mg/dl (unless bilirubin elevation is consistent with Gilbert's syndrome).  
3.1.13 PSA used as an eligibility criterion must be drawn within 42 days prior to injection number 1 and will be redrawn on Day 1 for use as a baseline value. 3.2 Exclusion criteria:
3.2.1 Candidates for salvage radiation therapy unless the patient refuses.  
3.2.2 Active or unresolved clinically significant infection.
3.2.3 Parenteral antibiotics <7 days prior to initiation of treatment. 3.2.4 Evidence of prior or current CNS metastases. Specific imaging is not necessary in the absence of signs or symptoms.  
3.2.5 Co-morbid medical conditions which would result in a life expectancy (participation) of less than 1 year.  
3.2.6 Patients with compromised immune systems; congenital, acquired, or druginduced (immunosuppressive agents) will be excluded from the study. Use of prednisone at doses higher than 10 mg daily (or equipotent steroid doses) for more than 7 days within the last 3 months is not allowed.  
3.2.7 Pre-existing malignancies that required treatment within the past 5 years except for basal or squamous cell cancers of the skin. 3.2.8 Prior systemic therapies for prostate cancer not allowed (hormonal therapy, including but not limited to LHRH agonists, antiandrogens, ketoconazole or chemotherapy - mitoxantrone/taxanes/estramustine, etc.) except when patients stopped hormone therapy two or more years prior to enrollment and currently have normal testosterone levels; patients in Arm B, undergoing androgen depletion therapy during the vaccination study will be eligible. 3.2.9 Prior participation in any vaccine studies for non-infectious diseases.  
3.2.10 The inability to understand the language and the clinical protocol.  
3.2.11 Allergy or religious objection to pork products; Gelfoam is produced from pork.
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4. registration procedures

4.1 All patients will be registered through the Department of Urology at the University of Iowa Hospitals and Clinics (UIHC) or the Urology Service at the Iowa City Veterans Affairs Health Care System (IC VAHCS).  
4.2 Patients who are candidates for enrollment into the study will be evaluated for eligibility by the clinical investigators to ensure that the criteria outlined in Section 3 have been satisfied and that the patient is eligible for participation in this clinical investigation. The University of Iowa will provide a patient eligibility case report form for this evaluation. 4.3 Following determination of eligibility patients will be assigned to receive the vaccine alone (Arm A) or ADT followed by the vaccine (Arm B).  
4.4 Informed Consent - Signed informed consent for enrollment in this protocol will be obtained from eligible patients by the attending physician, study coordinator, or clinical trial coordinator before the start of the research intervention. At the preadmission consultation, patients will be fully informed of the purpose and potential risks and benefits of participating in the study. Patients will have the opportunity to have questions answered to their satisfaction before signing the consent.  
4.5 Eligible patients must be registered Monday through Friday between 8:00 a.m. and 4:30 p.m. (Central Time). Patients at the University of Iowa Clinical Cancer Center will be registered by calling Pamela Zehr, RN, MA 319-353-8914. Patients at the IC VAHCS will be registered by calling Karen Clark Griffith, RN, PhD at 319-338-0581, ext. 7519.  
Information from the eligibility form will be provided by the investigator or the investigator's research staff to the University of Iowa Cancer Center at this time, and the patient will be registered and assigned a unique patient number. 4.6 No patient may be enrolled or begin the research intervention prior to registration and assignment of a patient number. As a follow-up, University of Iowa Cancer Center will provide the investigator with written confirmation of each patient's registration. 4.7 All investigators will be notified by the Chair of the Protocol Review and Monitoring Committee or by the trial's Data and Safety Monitoring Board if the study is placed on administrative hold, and when the study is completed or closed to further patient enrollment. 4.8 Patients must begin the vaccine protocol, either the vaccine alone (Arm A) or begin ADT (Arm B) within 30 days of registration (date the study committee approves patient eligibility).
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5. research intervention plan 5.1

Patients with recurrent disease after surgical treatment or radiation therapy will be randomized to either Arm A (vaccine only) or Arm B (androgen depletion therapy plus vaccine). All patients will receive three injections of 0.125 ml. of the Ad/PSA subcutaneously in the right thigh unless patient condition precludes the use of that leg, in which case the left thigh will be used for all three injections. The dose of the vaccine, based upon our results from the Phase I trial, will be 1 x 108 pfu (4.4 x 109 particles) in the Gelfoam matrix. The Gelfoam comes in sterile patient-ready packages. The virus will be suspended in sterile saline and the Gelfoam powder added in a ratio of 30 mg of powder per ml. of virus suspension. Injections will be spaced apart by 30 days, such that each patient will receive the vaccine on days 0, 30, and 60. The use of the matrix has been shown in collaborative pre-clinical experiments to enhance infection of host cells by the virus. Results from the Phase I trial indicated that the injection of the vaccine in Gelfoam did not produce any adverse events greater than those produced by the vaccine in an aqueous suspension. The vaccine induced anti-PSA immune response in patients injected as an aqueous or Gelfoam vaccination. Injections will be carried out in the University of Iowa Clinical Research Unit (CRU). Each subject will be required to stay in the CRU for two hours and observed for early signs of toxicities following each of the three vaccinations.
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5.2 design and stages

Subjects will enter the study according to a phase II two-stage design Simon (1989). We anticipate a total of 25 subjects (per arm) if the stopping rules do not signal futility. After testing the research intervention on 10 patients, if 3 do not have the desired increase in antiPSA T cells, the trial will be terminated. Otherwise, an additional 15 patients will be allowed to enter the trial for a total of 25 patients with the goal that more than 13 will show the desired increase. For both arms, we will need 50 subjects. For statistical considerations and the power reached under this study design consideration, we refer the reader to Section 10.
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6. adverse events

Toxicity will be graded according to the NCI common toxicity criteria "Common Terminology Criteria for Adverse Events" (NCI-CTCAE v3.0 can be accessed at website:
http://ctep.cancer.gov/forms/CTCAE_Index.pdf). Non-hematologic and Hematologic dose limiting toxicity (DLT) will be defined as described in Section 8.5.1.
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6.1 definitions

Adverse Event (AE) is any untoward medical occurrence in a patient or clinical investigation subject administered a pharmaceutical product and that does not necessarily have a causal relationship with this research intervention. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of a medicinal (investigational) product, whether or not related to the medicinal (investigational)
product.  
This will also include intercurrent diseases and accidents observed during the research intervention period as well as corresponding events during drug-free, pre- and postintervention periods, under placebo or in a reference group receiving drug or non-drug therapy.  
Serious adverse event (SAE) is any untoward medical occurrence that:  
a. results in death b. is life-threateningi c. requires inpatient hospitalization or prolongation of existing hospitalization d. results in persistent or significant disability or incapacity e. is a congenital anomaly / birth defect or f. is another medically important condition.ii 6.2 Procedures of documentation of AEs
All AEs occurring during the study must be documented, regardless of the assumption of a causal relationship, on the respective AE CRF. All events, which occurred after signed informed consent, should be documented. The investigator should ensure that all events are recorded that occurred within at least 4 weeks after the last exposure to the study drug (through Day 90). Documentation of AEs includes: date of onset and offset, intensity, frequency, seriousness, related interventions and outcome. The investigator will also evaluate the probability of a causal relationship of the adverse event to the study medication as being: "definite, probable, possible, unlikely, or unrelated." All unanticipated problems involving risk to subjects or others, serious adverse events related to participation in the study and subject deaths related to participation in the study will be promptly reported by phone (301-619-2165), by email (hsrrb@det.amedd.army.mil), or by facsimile (301-619-7803) to the USAMRMC, Office of Research Protections, Human Research Protection Office. A complete written report will follow the initial notification. In addition to the methods above, the complete report will be sent to the U.S. Army Medical Research and Materiel Command, ATTN: MCMRZB-PH, 504 Scott Street, Fort Detrick, Maryland 21702-5012.  
The medical monitor is required to review all unanticipated problems involving risk to volunteers or others, serious adverse events, and all volunteer deaths associated with the protocol and provide an unbiased written report of the event. At a minimum, the medical monitor should comment on the outcomes of the event or problem, and in the case of a serious adverse event or death, comment on the relationship to participation in the study. The medical monitor should also indicate whether he/she concurs with the details of the report provided by the study investigator. Reports for events determined by either the investigator or medical monitor to be possibly or definitely related to participation and reports of events resulting in death should be promptly forwarded to the HSRRB.
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expedited reporting

The investigator must immediately report serious adverse events (SAE) occurring or observed during the course of the study and within 4 weeks of last administration of the study drug to the FDA, IRB, OBA, and CRU. The order of reporting of SAEs is the following: reported to the Principal Investigator within 24 hours of the event; the PI will then report the event to the FDA, OBA,
Institutional Biosafety Committee (IBC), and DOD within 7 days of the event and to the IRB within 10 days of the event. After notifying the proper agencies by telephone of an SAE the "Serious Adverse Event Report "must also be sent by fax to the agencies whether or not complete information is available at the time. If complete information is unavailable the investigator must provide follow-up information to the agencies as soon as it is known.  
In particular, the investigator must inform the agencies and committees by phone and fax using the timeline described above of immediately life-threatening SAEs or SAEs with fatal outcome.
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important the investigator must report

Reports will be evaluated by the Medical Monitor/Sponsor. FDA/HPB and investigators will be informed as required by the regulations. The same information will also be made available to all participating investigators as well as to other investigators participating in different clinical trials utilizing the same study medication. It should be noted that, although the Ad/PSA vaccine contains the gene for PSA, there is no need for patients to utilize contraceptive practices. The adenovirus will not be transmitted from patient to his partner. In addition, the side effects of androgen depletion therapy, fluid retention, hair loss, hot flashes, nausea, vomiting, bone pain, memory changes, and depression, were not observed in vaccinated men our Phase I trial. Therefore, there should not be any confusion as to which side effects will be attributed to ADT and which to the Ad/PSA vaccine. However, subjects will be closely monitored by the research team for the development of ADT-related side effects. If side effects occur, investigators will take necessary steps to treat them, including discontinuation of the medication and/or discontinuation from the study.
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7 measurement of clinical and

7.1 Methods of Malignant Disease Evaluation - Each patient will have a baseline evaluation prior to the injection of the Ad/PSA vaccine. The measurements will include physical exam, temperature, weight, serum PSA, blood chemistries, urinalysis, a quantitative bone scan for bone metastases, chest x-ray, and CT for soft tissue metastases, and performance status for quality of life. PSA measurements, CT and bone scans are routinely used to follow disease recurrence and/or progression in individual prostate cancer patients and as such would be considered standard of care. Laboratory measurements such as hematology, liver function and kidney function chemistries, while are routinely used to follow the health of a prostate cancer patient, would not normally be performed at the frequency proposed in this trial to assess possible vaccination toxicities. Therefore, they would be considered part of the research protocol.  
Patients will be seen in the Urology and Oncology Clinics (see Table 6 for schedule). The injection site will be examined for evidence of erythema, induration and necrosis and patients will have their temperature and weight recorded and the patients will be interviewed to determine whether they experienced any adverse reactions. Blood samples will also be taken for standard laboratory testing and measurement of PSA and anti-PSA immune responses (see Table 6). Patients recruited from the DMMCC will return to that facility for their laboratory testing on days 44, 74, and at 6, 9, 12 months and all subsequent visits. At the 6 month, 9 month, 12 month, and subsequent semiannual visits each patient will be evaluated comparing the baseline visit measurements to those obtained at the specific visit. Because changes to the clinical status of the patients will be prolonged, continued follow up will be important. Therefore, patients will be requested to return to the clinic every six months following the 12 month post-vaccination visit. The visits will continue until the patient demonstrates signs of progressive disease. Follow-up of patients for survival will occur every 6 months by telephone following progressive disease.  
7.2 Use of Serum PSA for Disease Evaluation - Based upon our pre-clinical experiments and the results from the Phase I clinical trial we expect the immunized men to produce anti-PSA antibodies. The levels of antibody will be measured by a flow cytometry assay as described by Cavacini, et al. used in our Phase I clinical trial (39). We will also explore the use of a second serum marker for prostate cancer, hK2 in collaboration with Donald Tindall, Charles Young, and George Clee at the Mayo Clinic. Investigators at Mayo, along with Hybritech, Inc. have been exploring hK2 and published a number of papers in recent years on the subject (70-73). Patient sera from each clinic visit will be sent to Mayo where they will measure the levels of hK2. We will use the data to evaluate the effect of anti-PSA antibodies on both PSA and hK2 in the sera of vaccinated patients.
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7.3 experimental evaluation of the

7.3.1 Blood will be collected prior to each injection of the Ad/PSA vaccine and at return dates indicated in Table 6, page 26. Two separate samples will be collected; one in red top tubes to allow collection of serum from coagulated blood and a second in heparinized tubes to permit collection of lymphocytes.  
7.3.2 Levels of PSA, hK2, anti-PSA antibodies, and anti-adenovirus antibodies will be measured in the serum.  
7.3.3 Anti-PSA T cell immune responses will be measured by ELISPOT analysis using the methods developed for, and used in, our Phase I clinical trial. In addition to measuring the anti-PSA T cell activity, we will also measure anti-adenovirus T
cell activity as well as reactivity to stimulation with cytomegalovirus (CMV). A
non-specific stimulus will be provided by PMA and ionomycin for each patient's lymphocytes.
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7.4 definitions of response -

7.4.1 Arm A - Hormone Naïve -
7.4.1.1 Primary Endpoint - Development of Anti-PSA Immune Responses 7.4.1.1.1 Immunologic response - Definition: an increase of >200% above pre-immunization levels of anti-PSA T cells as measured by ELISPOT analysis, measured at any point after vaccination.
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7.4.1.2 secondary endpoints - psa

7.4.1.2.1 PSA response - Definition: a 50% reduction in the pre-research intervention PSA value, verified with a second measurement >/= 28 days later 7.4.1.2.2 A 50% increase in the PSADT compared to pre-enrollment PSADT. 7.4.1.2.3 PSADT will be calculated based on the MSKCC online calculator, available at http://www.mskcc.org/mskcc/html/10088.cfm.  
7.4.1.2.4 PSADT response will be measured at 9 and 18 months after initiation of the research intervention. 7.4.1.2.5 Three measurements of PSA, spaced at least 2 weeks apart, will be required prior to study enrollment. Post-research intervention PSADT will be based on PSA levels at 3, 6 and 9 months (9 month PSADT calculation) and 3, 6, 9,12,15,18 month levels (18 month PSADT calculation).  
7.4.2 Arm B - Androgen-Deprivation Therapy -
7.4.2.1.1 Definition: an increase of >200% above pre-immunization levels of anti-PSA T cells as measured by ELISPOT analysis, measured at any point after vaccination.  
7.4.2.2 Secondary Endpoint - PSA response - Definition: a 50% reduction in the pre-research intervention PSA value, verified with a second measurement >28 days later
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7.5 definition of progression

7.5.1 Development of positive bone scan.B  
7.5.2 Development of rising PSA above baseline, if existent. A rising PSA will be defined as a 50% increase above baseline measurement on two consecutive measurements, >28 days apart.
7.6 Timing of Toxicity Assessments - Toxicity assessment will occur as stated in the calendar. We will wait for the last patient of stage I to reach the 90 day toxicity assessment date (and review of safety data) prior to proceeding with stage II as outlined in the statistical plan.
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8 study parameters

8.1 Scans or x-rays must be done within 6 weeks prior to the initiation of treatment.  
8.2 CBC with differential, LFT's must be done <2 weeks before the initiation of treatment.  
8.3 All chemistries must be done <2 weeks before the study entry, unless specifically required on day 1 as per protocol. If abnormal, they can be repeated within 48 hours prior to study entry.
8.4 Hgb, Hct, WBC, Plt must be done <2 weeks before study entry but, if abnormal, they can be repeated <48 hours prior to study entry.  
8.5 REMOVAL OF PATIENTS FROM STUDY (Criteria for discontinuation of a patient's study participation)
8.5.1 Adverse events: Study subjects will be monitored for adverse events for 30 days beyond the final study injection, or longer if existing unresolved AEs are being monitored. In the event of a vaccine-associated unmanageable or irreversible toxicity, that would include hematological and non-hematological toxicities (see Section 8.5.1.1), the investigator will withdraw a patient from further research intervention and notify the Study Chair immediately. *In addition, the FDA and the* IRB and other agencies listed on page 18 will be notified of the adverse events. If unmanageable or irreversible toxicities occur the patients will receive the best possible medical care according to the recommendations of the treating physicians. The treatment plan will depend upon what unmanageable or irreversible toxicities may occur. In the event of an emergency the patient will be
instructed to seek immediate care by calling 911, his local physician, the University of Iowa or Iowa City VA Health Care System urology staff on call.
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8.5.1.1 management of toxicities 8.5.1.1.1

8.5.1.1.1.1 Patients with grade 2 or 3 hematological toxicity will not receive the subsequent dose of vaccine until there is normalization of cbc parameters until grade 1 or less toxicity is reached. An exception to withholding a dose of vaccine would be if the cbc parameters were stable (at or near the pre-vaccination values).  
8.5.1.1.1.2 In case of grade 2 or 3 hematological toxicity detected any time during protocol therapy, CBC with differential will be checked on a weekly basis until grade 1 or less toxicity is reached. 8.5.1.1.1.3 If the subsequent vaccine dose needs to be postponed for more than 2 weeks, those patients will be removed from protocol therapy. 8.5.1.1.1.4 Patients with grade 4 hematological toxicity at any time will be permanently removed from protocol therapy. 8.5.1.1.2.1 Patients with grade 2 or 3 non-hematological toxicity will not have the subsequent dose of vaccine administered until the toxicity ameliorates down to a grade 1 level. 8.5.1.1.2.2 Patients will be evaluated once a week with study team assessments if a grade 3 non-hematological toxicity occurs. 8.5.1.1.2.3 If the subsequent dose of vaccine needs to be postponed for more than 2 weeks, those patients will be permanently removed from protocol therapy.  
8.5.1.1.2.4 Patients with grade 4 non-hematological toxicity at any time will be permanently removed from protocol therapy.  
Patients may also be removed from protocol therapy at any time based on assessment of any other risks, at the discretion of the study investigators.  
8.5.2 Disease Progression: Patients will be taken off-study if they have progressive disease (PD) or clinically significant deterioration at any time during the study if the investigator feels that (a) alternative prostate cancer therapy might benefit the patient, or (b) to continue on study might be unsafe for the patient. Patients receiving alternative prostate cancer therapies will be followed for toxicity for 30 days beyond the third AdPSA injection only unless existing unresolved AEs are being monitored. Patients were asked in the Informed Consent document whether they would return every three months up to 12 months from study entry for immunologic evaluations. Patients who are being treated with prednisone at doses higher than 10 mg daily (or equipotent steroid doses) will be excluded from these every three month returns.  
8.5.3 Allergic Reactions: Patients must be removed from the study should they develop grade II allergic reactions.  
8.5.4 Personal Reasons: As stated in the informed consent, patients may withdraw from the study at any time.  
8.5.5 Clinical Judgment: A patient may be withdrawn from the study, if, in the opinion of the investigators, it is not in the patient's best interest to continue (e.g. an adverse experience, intercurrent illness, non-compliance, etc.)
8.5.6 The date of discontinuation and the reason(s) for patient discontinuation from the study will be recorded in the CRF. All efforts will be made to conduct evaluations that are required at the follow-up for each patient who discontinues research intervention, regardless of the reason.
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regulatory and reporting requirements

The Data and Safety Monitoring Committee (DSMC) of the Holden Comprehensive Cancer Center will provide data and safety monitoring for this study. "The Data and Safety Monitoring Plan of the Holden Comprehensive Cancer Center" provides standard operating procedures to monitor all clinical cancer trials at the UIHC. All investigator-initiated trials are automatically monitored by the DSMC. A detailed data and safety monitoring plan for this study is on file with the DSMC and the Clinical Research Safety Officer (CRSO).
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data management quality control and

In order to protect confidentiality the subject will be assigned an identification number. This number will be used on all specimens from the subject and will be used for documentation purposes.  
Data management for the optimal entry, processing, storage, and retrieval for this protocol's data will be accomplished by the principal investigator. The database will be located on a computer or in a locked cabinet in a locked office. This computer will be secured, accessible only by the research team. There will be more than one copy of the database. The second, secured, copy of the protocol data will be stored in a locked room accessible only by the research team. For quality control, auditing, and checking data for integrity, there will be a regular accounting of data performed. The medical record and research record will be linked by the study identification number. The data managers in this trial will be responsible for verification of the accuracy of all data transferred from the medical record to the research record. These records will be audited quarterly by the Data Safety Monitoring Committee. All Data Safety Monitoring Committee reports will be provided to the USAMRMC Office of Research Protections, Human Research Protection Office as they become available. Data will be kept on file on each patient for at least two years past the termination of that patient's participation in the trial. All records will be stored long-term in a secure location. UIHC
records will be kept for at least 15 years and then be confidentially destroyed. VAHCS records will be retained until disposition instructions are approved by National Archives and Records Administration.  
Information from the medical records of patients referred by physicians outside the University of Iowa and the VA Health Care System required to determine eligibility for this protocol will be placed in a research folder, identified by the patient code and will be available only to members of the clinical trial team (identified on pages 28 and 29). The signed HIPAA forms will be kept in the patient's folder in the office of the referring physician. The records of such patients that are deemed ineligible following a screening procedure will have their signed Release of Information forms, informed consent document, and eligibility form kept in a research folder under similar security conditions. The records for ineligible subjects will be stored with the other research records as indicated above.  
| Std. of  Care  or Res.                                                                                                                           | Prior  to  Reg.1   | Day   | Day 1                   |       |       |       |      |      |    |    |    |
|--------------------------------------------------------------------------------------------------------------------------------------------------|--------------------|-------|-------------------------|-------|-------|-------|------|------|----|----|----|
| -14                                                                                                                                              | First Inj.         | 30 d. | 44 d.                   | 60 d. | 74 d. | 90 d. | 6 mo | 9 mo | 12 |    |    |
| 2nd Inj.                                                                                                                                         | 3rd Inj.           | mo    | Every  6 mo.  to  prog. | Followup8       |       |       |      |      |    |    |    |
| Immunization                                                                                                                                     | R                  | X     | X                       | X     |       |       |      |      |    |    |    |
| Physical Examination                                                                                                                             | S                  | X     | X                       | X     | X     |       |      |      |    |    |    |
| Adverse Event Assessments                                                                                                                        | R                  | X     | X                       | X     | X     |       |      |      |    |    |    |
| Performance Status                                                                                                                               | S                  | X     | X                       | X     | X     | X     | X    | X    |    |    |    |
| Vital Signs                                                                                                                                      | S                  | X     | X                       | X     | X     | X     | X    | X    |    |    |    |
| Weight                                                                                                                                           | S                  | X     | X                       | X     | X     | X     | X    | X    |    |    |    |
| Blood for PSA & PAP2                                                                                                                             | S/R                | X     | X (R)                   | X (R) | X     | X     | X    | X    | X  |    |    |
| anti-PSA Ab, and  lymphocytes for cellular  immunity                                                                                             | R                  | X     | X                       | X     | X     | X     | X    | X7   | X7 | X7 | X9 |
| CBC, differential                                                                                                                                | R                  | X     | X                       | X     | X     | X     | X    | X    | X9 |    |    |
| AST, ALT, LDH, alkaline                                                                                                                          | R                  | X     | X                       | X     | X     |       |      |      |    |    |    |
| phosphatase, bilirubin Creatinine                                                                                                                | R                  | X     | X                       | X     | X     |       |      |      |    |    |    |
| Urinalysis                                                                                                                                       | R                  | X     | X                       | X     | X     |       |      |      |    |    |    |
| Chest x-ray                                                                                                                                      | R                  | X5    | X5                      | X5    | X5    |       |      |      |    |    |    |
| Bone scan                                                                                                                                        | S                  | X     | X6                      | X6    | X6    | X6    | X6   |      |    |    |    |
| Abdominal/pelvic CT                                                                                                                              | S                  | X     | X6                      | X6    | X6    | X6    | X6   |      |    |    |    |
| Serum testosterone3                                                                                                                              | R                  | X     | X                       |       |       |       |      |      |    |    |    |
| Begin ADT3, 4                                                                                                                                    | S                  | X     | X                       |       |       |       |      |      |    |    |    |
| Survival assessment                                                                                                                              | R                  | X8    |                         |       |       |       |      |      |    |    |    |
| S = Procedures considered "Standard of Care" for prostate cancer patients.  R = Procedures considered "Research" as part of this Clinical Trial. |                    |       |                         |       |       |       |      |      |    |    |    |  
1 Reg. = Registration, the date patient eligibility approved by the study team.  
2 If the PSA meets the definition of progression, partial or complete response, confirm the PSA results >/= 28 days. 3 For Arm B only 4 First ADT injection 14 days prior to vaccine injection \#1. Second dose 12-16 weeks later (depending on formulation; see package insert) 5 Will be repeated only if patient develops a fever. 6 Will be repeated only if the patient demonstrates a rise in PSA (50% increase above baseline on 2 consecutive measurements, 30 days apart) 7 To be performed even if there is disease progression (up to 12 months from study entry) if the patient has consented to this in the informed consent (question in section "How long will I be on the study?)."
8 Follow-up for survival every 6 months by telephone. 9 Obtained at 18 and 24 months only In the event of holidays or other extenuating circumstances the times on the table may vary by + 4 days for the first 90 days. Beyond that every effort will be made to see the patient within 2 weeks of the expected date of return, but the investigator is willing to allow for other arrangements for the convenience of the patient.
table 6 study design and
9.3 mode of action

The adenovirus is a replication-deficient virus unable to produce virus progeny in the infected cells. The virus will infect cells in the location of the injection site, the PSA gene will produce the protein product which will be recognized as an antigen by the immune system and produce anti-PSA immune responses. Based upon our pre-clinical studies in an animal model of human prostate cancer, these responses, mainly the CD8+ CTL response, will cause the destruction of PSA-secreting prostate tumors.
table 6 study design and
9.4 dose specifics and route

The route of injection, vehicles for the vaccine, and dose schedules have been outlined in Section 5.1 of this protocol.
table 6 study design and
9.6 storage

The vaccine is stored in the UIHC's Pharmacy Department in a -70oC temperaturemonitored and controlled access freezer. Only the Investigational Pharmacist will remove the vaccine from the freezer and enter the amount removed in a trial-specific log.
table 6 study design and
9.7 injection procedures & observation

At the weekly meetings of the clinical trial team at which the eligibility of the patients is decided, orders for the initial vaccine injection will be written by clinician members of the team. Orders for the second and third vaccine injections will be written at the meetings as close to the date of the scheduled injections as possible. On the designated days of injections and immediately prior to vaccination, the Investigational Pharmacist will mix the Ad/PSA (108 pfu or 4.4 x 109 particles) with the Gelfoam powder
(30 mg/ml). Each vial of the vaccine contains twice the volume needed for each injection. One half of the vial will contain the proper pfu and particles required for the vaccination. The injection material will be taken from the pharmacy in a 1 ml. syringe with 25 gauge needle and presented to staff in the General Clinical Research Center. Each patient will be injected with approximately 0.125 ml. of the vaccine/Gelfoam material subcutaneously in the thigh. The exact volume of the vaccination mixture
(Ad/PSA in Gelfoam) is not as important as the exact number of pfu or particles and that is controlled by using the required volume from the dose vial. The empty syringe will be disposed of in a biohazard container.  
Patients will remain in the CRU for 2 hours after each injection to be monitored for signs of adverse events.
table 6 study design and
9.8 assignment of patients to

Randomization of patients to Arm A (vaccine only) or Arm B (ADT plus vaccine) will be 1:1. Fifty (50) patients will be enrolled, 25 in each Arm of the study. Twenty five (25) cards will in printed for Arm A and 25 cards printed for Arm B and all 50 cards will be placed in a container. Following the administration of the Informed Consent document and determination of eligibility of each patient, a card will be drawn to determine which Arm of the study the patent is entered. Patients that choose not to be placed on ADT will not be enrolled in the study. For this study, ADT will consist of LHRH or GNRH agonists, such as leuprolide (Lupron) or goserelin (Zoladex). ADT will be continued for the first nine months of the study. Anti-androgens will be used initially to avoid testosterone flair, but then discontinued. Aromatase inhibitors will not be used. Patients in Arm B will be vaccinated 14 days after the initiation of ADT. To insure that all patients in Arm B reach castrate levels of testosterone (T) (<50 ng/ml), serum T levels will be measured on their 60 day visit, prior to their third vaccination. This will be approximately 10 weeks after the initiation of androgen withdrawal, a time at which T levels should reach their nadir.
table 6 study design and
9.9 manufacturing

9.9.1 The PSA cDNA provided by Donald Tindall, Mayo Clinic, Rochester, MN, was placed 3' to the CMV promoter in a shuttle vector containing Ad5 DNA. The sequence inserted was the pre-pro form of PSA described by Lundwall (75) that encodes 262 amino acids with a predicted molecular weight of 28.8 kDa. Using methods previously described (75), the shuttle vector and E1a-E1b deletion mutant Ad5 DNA were transfected into HEK 293 cells, and recombination between the DNA species was allowed to occur. The amplification and purification of Ad/PSA was performed by the University of Iowa Gene Transfer Vector Core as previously described (76). Ad/lacZ used as a control was also obtained from the Gene Transfer Vector Core and is previously described (75).  
9.9.2 The Principal Investigator provided the Ad/PSA vaccine used for the pre-clinical studies to Molecular Medicine, LLC of San Diego, CA for the production of the clinical grade product. Information on the manufacturing of the GMP Vaccine by Molecular Medicine, LLC is found in the accompanying documents supplied by the company.
table 6 study design and
10 statistical considerations

The ideal endpoint would be a clinical outcome that is of particular relevance to the patient such as increased time to tumor progression, increased time to death, or reducing the proportion of death. The trial is using a surrogate endpoint as a substitute to the clinically meaningful outcome since the tumor cannot be accessed directly. The association between the surrogate and survival rate had not been clearly established by any phase I & II trial. The trial consists of using Ad/PSA vaccine administered in multiple injections to prostate cancer patients with minimal disease burden—with the goal to induce anti-PSA T cells responses. Three injections of equal dose are proposed. A previous phase I trial consisting of a single injection in men with metastatic prostate cancer was able to induce anti-PSA T cells responses. The Phase I consisting of a single injection using a dose escalation protocol of the vaccine in an aqueous or matrix delivery vehicle did not show any significant AE. Additional pre-clinical pharmacology
/toxicology studies required by the FDA did not show any significant side effects using the threeinjection schedule. The primary endpoint is the development of anti-PSA immune responsedefined as an increase of greater than 200% above pre-immunization level of anti-PSA T cells as measured by ELISPOT analysis, measured 14 days after the 3rd immunization. This endpoint will be the same for both arms considered in the protocol—the vaccine only and the vaccine plus androgen deprivation therapy arms.  
During the Phase I trial consisting of vaccine alone, patients that developed anti-PSA T cell responses had an increase in the frequency of anti-PSA T cells. We decided to express the anti-T cell response as percent change in antigen-specific T cell frequency compared to the frequency prior to immunization. Based on our phase I results, we judge 70% of the patients developing anti-PSA immune response as being clinically important while anything less than 40% in both arms will be judged unworthy.  
The ideal design would be a two-stage design of Simon (1989). After testing the research intervention on 10 patients, if 3 did not have the desired increase in anti-PSA T cells, the trial will be terminated. Otherwise, an additional 15 patients will be recruited for the trial for total of 25 patients with the goal that more than 13 will show the desired increase. If 8 or more show the desired increase, then the research intervention will be judged worthy for further considerations. In case the number is less than 8, the research intervention will be rejected.  
The expected sample size will be 15.14 and the probability of early termination, 0.63. If the research intervention is not effective, there is 0.05 probability of concluding that it is. If the research intervention is effective, there will be 0.09 probability of concluding that it is not.  
We will be conservative and use the same design and sample size considerations for both arms (25 per arm for a total of 50 patients) even though we expect the vaccine plus androgen deprivation therapy arm to yield better results. This brings a natural question of why two different research interventions and how one would assess the superiority of one research intervention over the other. We postulate that men in Arm B, those receiving ADT plus vaccine, will generate a stronger anti-PSA immune response, as measured by the production of PSAspecific T cells, than will men in Arm A, those receiving the vaccine alone. For patients in Arm B, there will be a quantitative and/or qualitative difference in the generation of anti-PSA T cells.  
That is, a higher percentage of men will demonstrate antigen specific T cells and/or the magnitude of the T cell response, as indicated by the precursor frequency, will be greater in this population. The differences will be most evident 14 days after the third and last vaccination. A test for comparison of these two proportions will reveal the superiority of ADT plus Vaccine over Vaccine alone.  
The secondary endpoint is the PSADT that will be assessed 18 to 20 months after initial patient accrual. Points estimate and exact confidence interval for the proportion of subjects who show 50% increase in PSADT will be reported. Monitoring toxicity: Stopping rules for toxicity purpose are based on testing the null that toxicity level is less than 15% versus the alternative that it is actually greater than 35%. In this setting, we will carry two different but dependent looks. If 3 out of 10 show grade 3 vaccine-related toxicity or higher, the trial will stop (this will correspond to testing the toxicity hypotheses at level alpha=0.1 with a power of 68%); otherwise, another test for toxicity after we have a total of 17 subjects will be considered. If 5 out of 17 show a grade 3 vaccine-related toxicity or higher, or if 2 out 17 show a grade 4 toxicity the trial will stop (this will be equivalent to testing the toxicity hypotheses at level alpha =0.1 with a power 77%); otherwise we will proceed to full registration. The overall type I error for testing toxicity level is around 0.19. In addition, the trial will stop if any vaccine-related deaths occur. The determination of a death related to the vaccine will be made by the clinical trial team and an audit by the Data and Safety Monitoring Board.  
Randomization to clinical arm: one-to-one.  
Simon, Richard. "Optimal Two-Stage Designs for Phase II Clinical Trials," Controlled Clinical Trials, 1989, Volume 10, pages 1-10.
table 6 study design and
addendum phase ii study of

The following are reporting requirements and responsibilities of the Principal Investigator to the United States Army Medical Research and Materiel Command's (USAMRMC) Office of Research Protections (ORP), Human Research Protection Office (HRPO). 1. The protocol will be conducted in accordance with the protocol submitted to and approved by the USAMRMC ORP HRPO and will not be initiated until written notification of approval of the research project is issued by the USAMRMC ORP HRPO.  
2. Accurate and complete study records will be maintained and made available to representatives of the U.S. Army Medical Research and Materiel Command as a part of their responsibility to protect human subjects in research. Research records will be stored in a confidential manner so as to protect the confidentiality of subject information.  
3. All unanticipated problems involving risk to subjects or others, serious adverse events related to participation in the study and subject deaths related to participation in the study should be promptly reported by phone (301-619-2165), by email (hsrrb@det.amedd.army.mil), or by facsimile (301-619-7803) to the USAMRMC, Office of Research Protections, Human Research Protection Office. A complete written report will follow the initial notification. In addition to the methods above, the complete report will be sent to the U.S. Army Medical Research and Materiel Command, ATTN: MCMRZB-PH, 504 Scott Street, Fort Detrick, Maryland 21702-5012.  
4. Any deviation to the protocol that may have an effect on the safety or rights of the subject or the integrity of the study must be reported to the USAMRMC ORP HRPO as soon as the deviation is identified.  
5. Major modifications to the research protocol and any modifications that could potentially increase risk to subjects must be submitted to the USAMRMC ORP HRPO for approval prior to implementation. All other amendments will be submitted with the continuing review report to the USAMRMC ORP HRPO for acceptance.  
6. A copy of the approved continuing review report and the local IRB approval notification will be submitted to the USAMRMC ORP HRPO as soon as these documents become available. A copy of the approved final study report and local IRB approval notification will be submitted to the USAMRMC ORP HRPO as soon as these documents become available.  
7. The knowledge of any pending compliance inspection/visit by the FDA, OHRP, or other government agency concerning clinical investigation or research, the issuance of Inspection Reports, FDA Form 483, warning letters or actions taken by any Regulatory Agencies including legal or medical actions and any instances of serious or continuing noncompliance with the regulations or requirements will be reported immediately to USAMRMC ORP HRPO. "
table 6 study design and
roles and responsibilities of study

David M. Lubaroff, PhD, Principal Investigator - Dr. Lubaroff, along with Dr. Vaena, will manage all aspects of the trial, from assisting in patient recruitment, co-chairing the clinical trial meetings, to supervising the immunologic testing of the patients' sera and lymphocytes for antiPSA immune responses. He will work together with Dr. Williams the Co-Principal Investigator on all important clinical issues for the trial.  
Daniel Vaena, MD; Co-Principal Investigator - Dr. Vaena is a Medical Oncologist who cares for prostate cancer patients following recurrences of their disease. He will manage all patient care activities associated with this proposal and will work together with Dr. Lubaroff on managing the trial. Dr. Vaena will function as co-chair of the weekly trial team meetings. He will be a major participant in the clinical management of prostate cancer patients that includes recruitment, patient management, assessing clinical response and any adverse events and long-term follow-up during the trial.  
James Brown, MD, Co-Investigator - Dr. Brown, a clinical urologist on the clinical trial team, will also participate in the recruitment and clinical management of the patients. As Chief of Urology at the Iowa City Veterans Affairs Health Care System (IC VAHCS) Dr. Brown will be an active participant in the treatment and follow-up of patients at that hospital. He will work closely with Dr. Vaena in that capacity.  
Mark C. Smith, MD, Co-Investigator - Dr. Smith is a Radiation Oncologist who is responsible for radiation therapy of men with prostate cancer. He will assist in the recruitment and care of patients in the trial.  
Michael O'Donnell, MD, Co-Investigator - Dr. O'Donnell is an urologist at the UIHC who will contribute to the recruitment of new patients and care of enrolled patients in the study.  
Sundeep Deorah, MD, Co-Investigator - Dr. Deorah is an urologist at the UIHC who will contribute to the recruitment of new patients and care of enrolled patients in the study.  
Amit Gupta, MD, Co-Investigator - Dr. Gupta is an urologist at the UIHC who will contribute to the recruitment of new patients and care of enrolled patients in the study.  
Kenneth Nepple, MD, Co-Investigator - Dr. Nepple is an urologist at the UIHC who will contribute to the recruitment of new patients and care of enrolled patients in the study.  
Pamela Zehr, RN, MA - Clinical Trial Coordinator - Ms. Zehr participates in clinical trials in the Holden Comprehensive Cancer Center at the University of Iowa. She has and will continue to guide the clinical protocol through the institutional and federal other regulatory approval processes. She will coordinate follow-up visits of the patients.  
Mary Schall, RN - Clinical Trial Coordinator - Ms. Schall also participates in clinical trials in the Holden Comprehensive Cancer Center at the University of Iowa. She will act as a backup for Ms. Zehr.  
Karen Clark Griffith, RN, PhD - Clinical Trial **Coordinator VAHCS** - Ms. Griffith will be responsible for trial for veteran patients enrolled in the clinical trial at the VA Health Care System. She will work closely with all members of the trial team and attend the weekly meetings to discuss eligibility and follow-up of patients.  
Steven Varga, PhD, Collaborator - Dr. Varga is an immunologist and will assist in the immunologic evaluation of patient's immune responses to the vaccine.  
Gideon Zamba, PhD - Biostatistician - Dr. Zamba participated in the discussions pertinent to the development of the clinical protocols, performed the power analysis, and constructed the section on statistical considerations for the trial. He will assist in the data analysis and statistical interpretation of the patient data.
table 6 study design and
literature references

1. Jemal, A, Siegel, R Ward, E, Murray, T, Xu, J, Smigal, C, and Thun, MJ. Cancer Statistics 2006. CA Cancer J Clin, 56:106-130, 2006.  
2. Koostra, NA and Verma, IM. Gene therapy with viral vectors. Ann. Rev. Immunol, 43:413439, 2003.  
3. Connolly, JB. Conditionally replicative viruses in cancer therapy. Gene Therapy, 10:712715, 2003 4. Bronte, V. Genetic vaccination for the active immunotherapy of cancer. Curr Gene Ther, 1:53-100, 2001 5. Chiocca, EA and Smith ER. Oncolytic viruses as novel anticancer agents: turning one scourge against another. Expert Opin Investig Drugs, 9:311-327, 2000 6. Babiuk, LA and Tikoo, SK. Adenoviruses as vectors for delivering vaccines to mucosal surfaces. J Biotechnol, 83:105-113, 2000 7. Zhang, WW. Development and application of adenoviral vectors for gene therapy of cancer.  
Cancer Gene Ther, 6:113-138, 1999 8. Siemens, DR, Elzey, BD, Lubaroff, DM, and Ratliff, TL. Restoration of the ability to generate CTL in mice immune to adenovirus by delivery of virus in a collagen-based matrix. J Immunol, 166:731-735, 2001 9. Elzey, BD, Ratliff, TL and Lubaroff, DM. Immunization with Type 5 Adenovirus Recombinant for PSA In Combination with ALVAC Cytokine Gene Delivery Induces Destruction of Established Prostate Tumors. Int. J. Cancer, 94:842-849, 2001 10. Horwitz, MS. Adenoviridae and their replication. In: Felds, BN, Knipe, DM, eds. Virology, 2nd ed. New York, Raven Press, pp. 1679-1721, 1990 11. Rubin, SA and Rorke, LB. Adenoviral vaccines. In: Plotkin, M (ed) Vaccines. Saunders, Philadelphia, pp. 492-512, Stratford-Perricaudet, LD, Levrero, M, Chasse, J-F, et al. Evaluation of the transfer and expression in mice of an enzyme-encoding gene using a human adenovirus vector. Hum Gene Ther, 1:241-256, 1990 12. Jaffe HA, Danel C, Longenecker G, Metzger M, Setoguchi Y, Rosenfeld MA, et al.  
Adenovirus-mediated in vivo gene transfer and expression in normal rat liver. Nature Genet 1992;1:372-378 13. Rosenfeld, MA, Yoshimura, K, Trapnell, BC, et al. In vivo transfer of the human cystic fibrosis transmembrane conductance regulator gene to the airway epithelium. Cell, 68:143155, 1992 14. Akli, S, Caillaud, C, Vigne, E, et al. Transfer of a foreign gene into the brain using adenovirus vectors. Nature Genet, 3:224-234, 1993 15. LeGal La Salle, G, Robert, JJ, Berrard, S, et al. An adenovirus vector for gene transfer into neurones and glial cells in the brain. Science, 259:988-990, 1993 16. Cordier, L, Duffour, MT, Sabourin, JC, et al. Complete recovery of mice from preestablished tumor by direct intra-tumoral delivery of an adenovirus vector harboring the murine IL-2 gene. Gene Ther, 2:16-21, 1995 17. Tripathy, SK, Black, HB, Goldwasser, E, et al. Immune responses to transgene-encoded proteins limit the stability of gene expression after injection of replication-defective adenovirus vectors. Nature Med, 2:545-550, 1996 18. Yang, Y, Li, Q, Ertl, HC. Cellular and humoral immune responses to viral antigens create barriers to lung-directed gene therapy with recombinant adenoviruses. J Virol, 69:20042015, 1995 19. Li, W, Berencsi, K, Basak, S, Somasundaram, R, et al. Human colorectal cancer (CRC)
antigen CO17-1A/GA/733 encoded by adenovirus inhibits growth of established CRC cell lines. J Immunol, 159:763-769, 1997 20. Rosenberg SA Zhai Y Yang JC, et al. Immunizing patients with metastatic melanoma using recombinant adenoviruses encoding MART-1 or gp100 melanoma antigens. Journal of the National Cancer Institute. 90:1894-900, 1998 21. Liu, DW, Tsao, YP, Hsieh, CH, et al. Induction of CD8 T cells by vaccination with a recombinant adenovirus expressing human papillomavirus type 16 E5 gene reduces tumor growth. J Virol, 74:9083-9089, 2000 22. Tsao, H, Millman, P, Linette, GP, et al. Hypopigmentation associated with an adenovirusmediated gp100/MART-1-transduced dendritic cell vaccine for metastatic melanoma. Arch Derm, 138:799-802, 2002 23. Perricone, MA, Smith, KA, Claussen, KA, et al. Enhanced efficacy of melanoma vaccines in the absence of B lymphocytes. J Immunother, 27:273-281, 2004 24. Gallo, P, Dharmapuri, S, Nuzzo, M, et al. Xenogeneic immunization in mice using HERs DNA delivered by an adenoviral vector. Int J Cancer, 113:67-77, 2005 25. Park, JM, Terabe, M, Sakai, Y, et al. Early role of CD4+ Th1 cells and antibodies in HER-w adenovirus vaccine protection against autochtonous mammary carcinomas. J Immunol, 174:4228-4236, 2005 26. Council on Pharmacy and Chemistry: Absorbable Gelatin sponge-new and nonofficial remedies. *JAMA* 135:921, 1947.  
27. Goodman LS, Gilman A: Surface-acting drugs, in The Pharmacologic Basis of Therapeutics, ed 6. New York, *MacMillan Publishing* Co. p 955 , 1980 28. Gurainick W, Berg L: Gelfoam in oral surgery. *Oral Surg*; 1:629-632, 1948 29. Jenkins HP, Senz EH, Owen H, et al: Present status of gelatin sponge for control of hemorrhage. *JAMA*; 132:6l4-619, 1946 30. Jenkins HP, Janda R, Clarke J: Clinical and experimental observations on the use of gelatin sponge or foam. *Surg*; 20:124-132, 1946 31. Lee, Y.C., P. Simamora, and S.H. Yalkowsky. Systemic delivery of insulin via an enhancerfree ocular device. J. Pharm. Sci. 86:1361-1364, 1997.  
32. Park, M.S. and Y. B. Kim. Sustained release of antibiotic from a fibrin-gelatin antibiotic mixture. Laryngoscope 107:1378-1381, 1997 33. Stepnick, D.W., Peterson, M.K. Bodgan, Davis, J., Wasman, J., and Mailer, K. Effects of Tumor Necrosis Factor alpha and vascular Permeability Factor on Neovascularization of the Rabbit Ear Flap. Archives of Otolaryngology -- Head & Neck Surgery. 121:667-672, 1995 34. MacDonald SA, Mathews WH: Fibrin foam and Gelfoam in experimental kidney wounds.  
Annual *American Urological Association,* July 1946 35. Jenkins HP, Janda R: Studies on the use of gelatin sponge or foam, as a hemostatic agent in experimental liver resections and injuries to large veins *Ann Surg* 1946; 124:952-961 36. Correll JT, Prentice HR, Wise EC: Biologic investigations of a new absorbable sponge. Surg Gynecol *Obstet* 1945; 181:585-589 37. Hanisch ME. Baum N. Beach PD. Griffith DP. Tyler M. A comparative evaluation of evitene and gelfoam for hemostasis in experimental canine prostatic wounds. Investigative Urology. 12(5):333-6, 1975 38. Bischoff W. Goerttler U. Successful intra-arterial embolization of bleeding carcinoma of the prostate. Urologe - Ausgabe A. 16(2):99-102, 1977 39. Cavacini, LM, Duval, M, Eder, JP, and Posner, MR. Evidence of determinant spreading in the antibody responses to prostate cell surface antigens in patients immunized with prostate-specific antigen. Clin Cancer Res, 8:368-373, 2002 40. Halabi, S., et al. Prognostic model for predicting survival in men with hormone-refractory metastatic prostate cancer. J Clin Oncol, 21:1232-1237, 2003 41. Galsky, M and Kelly, Use of nomograms for predicting survival in patients with castrate prostate cancer. Urology, 62 (suppl 6B): 119-127, 2003 42. Sanda, MG, Smith, DC, Charles, LG, et al. Recombinant vaccinia-PSA (Prostvac) can induce a prostate-specific immune response in androgen-modulated human prostate cancer. Urology, 53:260-266, 1999 43. Eder, JP, Kantoff, PW, Roper, K, et al. A Phase I trail of recombinant vaccinia virus expressing prostate-specific antigen in advanced prostate cancer. Clin Cancer Res, 6:16321638, 2000 44. Meidenbauer, N, Harris, DT, Spitler, LE, and Whiteside, TL. Generation of PSA-reactive effector cells after vaccination with a PSA-based vaccine in patients with prostate cancer.  
The Prostate, 43:88-100, 2000 45. Heiser, A, Coleman, D, Dannull, et al. Autologous dendritic cells transfected with prostatespecific antigen RNA stimulate CTL responses against metastatic prostate tumors. J Clin Invest, 109:409-417, 2002 46. Gulley, J, Chen, AP, Dahut, W, et al. Phase I study of a vaccine using recombinant vaccinia virus expressing PSA (rV-PSA) in patients with metastatic androgen-independent prostate cancer. The Prostate, 53:109-117, 2002 47. Kaufman, HL, Wang, W, Manola, J, et al. Phase II randomized study of vaccine treatment of advanced prostate cancer (E7897): A trial of the Eastern Cooperative Oncology Group. J Clin Oncol, 22:2122-2132, 2004 48. Pavlenko, M, Roos, A-K, Lundqvist, A, t al. A phase I trial of DNA vaccination with a plasmid expressing prostate-specific antigen in patients with hormone-refractory prostate cancer. Brit J Cancer, 91:688-394, 2004 49. Culley, JL, Arlen, PM, Bastian, A, et al. Combining a recombinant cancer vaccine with standard definitive radiotherapy in patients with localized prostate cancer. Clin Cancer Res, 11:3353-3362, 2005 50. Small, EJ, Fratesi, P, Reese, DM, at al. Immunotherapy of hormone-refractory prostate cancer with antigen-loaded dendritic cells. J Clin Oncol, 18:3894-3903, 2000 51. Fong, L, Brockstedt, B, Benike, C, at al. Dendritic cell-based xenogeneic vaccination for prostate cancer immunotherapy. J Immunol, 167:7150-7156, 2001 52. Rini, B Technology innovation: APC-8015, Dendreon. Curr Opin Molec Ther, 4:78-79, 2002 53. Burch, PA, Croghan GA, Gastineau, DA, et al. Immunotherapy (APC8015, Provenge®)
targeting prostatic acid phosphatase can induce durable remission of metastatic androgenindependent prostate cancer: A Phase 2 trial. The Prostate, 60:197-204, 2004 54. Tjoa, BA, Erickson, SJ, Bowes, VA, et al. Follow-up evaluation of prostate cancer patients infused with Autologous dendritic cells pulsed with PSMA peptides. The Prostate, 32:272278, 1997 55. Tjoa, BA, Simmons, SJ, Bowes, VA, et al. Evlauation of Phase I/II clinical trials in prostate cancer with dendritic cells and PSMA peptides. The Prostate, 36:39-44, 1998 56. Murphy, GP, Tjoa, BA, Simmons, SJ, et al. Infusion of dendritic cells pulsed with HLA-A2 specific prostate-specific membrane antigen peptides: A Phase II prostate cancer vaccine involving patients with hormone-refractory metastatic disease. The Prostate, 38:73-78, 1999 57. Vonderheide, RH, Domchek, SM, Schultze, JL, et al. Vaccination of cancer patients against telomerase induces functional antitumor CD8+ T lymphocytes. Clin Cancer Res, 10:828839, 2004 58. Su, Z, Dannull, J, Yang, BK, et al. Telomerase mRNA-transfected dendritic cells stimulate antigen-specific CD8+ and CD4+ T cell responses in patients with metastatic prostate cancer. J Immunol, 174:3798-3807, 2005 59. Slovin, SF, Ragupathi, G, Musselli, C, et al. Thomsen-Friedenreich (TF) antigen as a target for prostate cancer vaccine: clinical trial results with RF cluster (c)-KLH plus QS21 conjugate vaccine in patients with biochemically relapsed prostate cancer. Cancer Immunol Immunother, 54:694-702, 2005 60. Slovin SF, Ragupathi, G, Musselli, C, et al. Fully synthetic carbohydrate-based vaccines in biochemically relapsed prostate cancer: Clinical trial results with α-N-acetylgalactosamineO-serine/threonine conjugate vaccine. J Clin Oncol, 21:4292-4298, 2003 61. Slovin, SF, Ragupathi, G, Adluri, S, et al. Carbohydrate vaccines in cancer: Immunogenicity of a fully synthetic globo H hexasaccharide conjugate in man. Proc Natl Acad Sci, 96:57105715, 1999 62. Noguchi, M, Itoh, K, Yao, A, et al. Immunological evaluation of individualized peptide vaccination with a low dose of estramustine for HLA-A24+ HRPC patients. The Prostate, 63:1-12, 2005 63. Pandha, HS, Nohn, RJ, Hutchinson, J, et al. Dendritic cell immunotherapy for urological cancers using cryopreserved allogeneic tumor lysate-pulsed cells: a phase I/II study. Brit J Urol, 94:41-418, 2004 64. Kaufman, HL, Wang, W, Manola, J, et al. Phase II prime/boost vaccination using posxviruses expressing PSA in hormone dependent prostate cancer: Follow-up clinical results from ECOG 7897. Amer Soc Clin Oncol,: abstract \#4501, 2005 65. Dreicer, R, Ahman, R, Pantuck, A, et al. Vaccine immunotherapy with MVA-Muc1-IL2
(TG4010) in prostate cancer patients with biochemical failure. Amer Soc Clin Oncol,: abstract \#4518, 2005 66. Small, EJ, Schellhamer, PF, Higano, C, et al. Immunotherapy (APC8015) for androgen independent prostate cancer (AIPC): final survival data from a phase 3 randomized placebocontrolled study. Amer Soc Clin Oncol,: abstract \#264, 2005 67. Mercader, M, Bodner, BK, Moser, MT, et al. T cell infiltration of the prostate induced by androgen withdrawal in patients with prostate cancer. Proc. Nat. Acad. Sci., 98:1456514570, 2001 68. Roden, AC, Moser, MT, Tri, SD, et al. Augmentation of T cell levels and responses induced by androgen deprivation. J Immunol, 173:6098-6108, 2004 69. Drake, CG, Doody, ADH, Mihalyo, MA, et al. Androgen ablation mitigates tolerance to prostate/prostate cancer-restricted antigen. Cancer Cell, 7:239-249, 2005 70. Finlay, JA, Evans, CL, Day, JR, et al. Development of monoclonal antibodies specific for human glandular kallikrein (hK2): development of a dual antibody immunoassay for hK2 with negligible prostate specific antigen cross-reactivity. Urology, 51:804-9, 1998 71. Rittenhouse, HG, Finlay, JA, Mikolajczyk, SD, et al. Human kallikrein 2 (hK2) and prostate specific antigen (PSA): two closely related, but distinct, kallikreins in the prostate. Crit Rev Clin Lab Sci, 35:275-368, 1998 72. Kuus-Reichel, K, Kumar, A, Payne, J, et al. The precursor form of the human kallekrein 2, a kallikrein homologous to prostate specific antigen, is present in human sera and is increased in prostate cancer and benign prostatic hyperplasia. Clin Chemistry, 44:2115-19, 1998 73. Darson, MF, Pacelli, A, Roche, P, et al. Human glandular kallekrein 2 expression in prostate adenocarcinoma and lymph node metastases. Urology, 53:939-44, 1999 74. Lundwall A. Characterization of the gene for prostate-specific antigen, a human glandular kallikrein. Biochem Biophys Res Comm 1989;161:1151-1159.  
75. Davidson BL, Doran SE, Shewach DS, Latta JM, Hartman JW, Roessler BJ. Expression of Escherichia coli beta-galactosidase and rat HPRT in the CNS of Macaca mullatta following adenoviral mediated gene transfer. Exp Neurol 1994;125:258-267.  
76. Graham FL, Smiley J, Russell WC, Nairn R. Characteristics of a human cell line transformed by DNA from human adenovirus type 5. J Gen Virol 1977;36:59-74.  
77. Simon, R. "Optimal Two-Stage Designs for Phase II Clinical Trials," Controlled Clinical Trials, 1989, Volume 10, pages 1-10.