A Study to Evaluate the Safety and Efficacy of Dasatinib (Sprycel) in Subjects With Relapsed or Refractory Diffuse Large B-Cell Lymphoma (DLBCL)
Condition: Diffuse Large B-cell Lymphoma
MeSH terms: Lymphoma; Lymphoma, B-Cell; Lymphoma, Large B-Cell, Diffuse
Intervention: dasatinib
Intervention description: 100 mg daily dosing
Intervention MeSH terms: Dasatinib
Phase: Phase 2
Study type: Interventional
Primary purpose: Treatment
Intervention model: Single Group Assignment
Masking: None (Open Label)
Enrollment: 2.0
Sex: All
Minimum age: 18 Years
Healthy volunteers: No
Keywords: lymphoma; diffuse; refractory

Summary:

      This is a Phase II, single institution, single-arm, open-label study of oral dasatinib
      monotherapy administered to subjects with relapsed or refractory aggressive DLBCL.

      This study will be conducted in two phases: a Treatment Phase and a Follow-up Phase.

      Research Hypothesis: Dasatinib, when administered orally at a continuous dose of 100 mg once
      daily, will be safe and effective in treating subjects that have failed prior therapies to
      diffuse large B cell lymphoma (DLBCL) or have relapsed disease.
    

Eligibility criteria:

        Inclusion Criteria:

          -  Must understand and voluntarily sign an informed consent form.

          -  Must be > = 18 years of age at the time of signing the informed consent form.

          -  Must be able to adhere to the study visit schedule and other protocol requirements.

          -  Biopsy-proven aggressive Diffuse Large B-Cell Lymphoma.

          -  Relapsed or refractory to previous therapy for lymphoma.

          -  Subjects must have received at least one prior combination chemotherapy regimen. There
             is no limit on the number of prior therapies.

          -  Subjects who have relapsed following an autologous stem cell transplant are eligible.

          -  Subjects must have measurable disease on cross sectional imaging that is at least 2 cm
             in the longest diameter.

          -  Eastern Cooperative Oncology Group (ECOG) performance status score of 0, 1, or 2.

          -  Life expectancy of > = 90 days (3 months).

          -  Ability to take oral medication: dasatinib tablets may be swallowed as a whole.

          -  Adequate organ function:

        Total bilirubin <2.0 times Upper Limit of Normal (ULN) Serum Na, K, Mg, Phos, and Ca >
        Lower Limit of Normal (LLN) Hemoglobin, neutrophil count, platelets, PT/PTT all grade 0-1
        Serum creatinine concentration <1.5 x institutional upper limit of normal (ULN). Serum
        SGOT/AST or SGPT/ALT < 2.5 x institutional upper limit of normal (ULN).

          -  Concomitant medications:

               1. Patient agrees to discontinue St. Johns Wort while receiving dasatinib

               2. IV biphosphonates will be withheld for the first 8 weeks of dasatinib therapy due
                  to risk of hypocalcemia.

          -  Females of childbearing potential (FCBP) must agree to use two reliable forms of
             contraception simultaneously or to practice complete abstinence from heterosexual
             intercourse during the following time periods related to this study: 1) for at least
             28 days before starting study drug; 2) while participating in the study; and 3) for at
             least 28 days after discontinuation from the study. The two methods of reliable
             contraception must include one highly effective method (i.e. intrauterine device
             (IUD), hormonal [birth control pills, injections, or implants], tubal ligation,
             partner's vasectomy) and one additional effective (barrier) method (i.e. latex condom,
             diaphragm, cervical cap). FCBP must be referred to a qualified provider of
             contraceptive methods if needed.

          -  Before starting study drug:

          -  Female Subjects: FCBP must have two negative pregnancy tests (sensitivity of at least
             50 mIU/mL) prior to starting study drug. The first pregnancy test must be performed
             within 10-14 days prior to the start of study drug and the second pregnancy test must
             be performed within 24 hours prior to the start of study drug. The subject may not
             receive study drug until the Investigator has verified that the results of these
             pregnancy tests are negative; Will be warned that sharing study drug is prohibited and
             will be counseled about pregnancy precautions and potential risks of fetal exposure;
             Must agree to abstain from donating blood during study participation and for at least
             28 days after discontinuation from the study.

          -  Male Subjects: Must agree to use a latex condom during sexual contact with females of
             childbearing potential while participating in the study and for at least 28 days
             following discontinuation from the study even if he has undergone a successful
             vasectomy; Will be warned that sharing study drug is prohibited and will be counseled
             about pregnancy precautions and potential risks of fetal exposure; Must agree to
             abstain from donating blood, semen, or sperm during study participation and for at
             least 28 days after discontinuation from the study.

          -  During study participation and for 28 days following discontinuation from the study:

          -  All Subjects: No more than a 30-day supply of study drug will be dispensed at a time.

        Female Subjects:

          -  FCBP with regular cycles must agree to have pregnancy tests weekly for the first 28
             days of study participation and then every 28 days while on study, at study
             discontinuation, and at day 28 following discontinuation from the study. If menstrual
             cycles are irregular, the pregnancy testing must occur weekly for the first 28 days
             and then every 14 days while on study, at study discontinuation, and at days 14 and 28
             following discontinuation from the study.

          -  In addition to the required pregnancy testing, the Investigator must confirm with FCBP
             that she is continuing to use two reliable methods of birth control at each visit.

          -  Counseling about pregnancy precautions and the potential risks of fetal exposure must
             be conducted at a minimum of every 28 days. During counseling, subjects must be
             reminded to not share study drug and to not donate blood.

          -  Pregnancy testing and counseling must be performed if a subject misses her period or
             if her pregnancy test or her menstrual bleeding is abnormal. Study drug treatment must
             be discontinued during this evaluation.

          -  Females must agree to abstain from breastfeeding during study participation and for at
             least 28 days after discontinuation from the study.

        Male Subjects:

          -  Counseling about the requirement for latex condom use during sexual contact with
             females of childbearing potential and the potential risks of fetal exposure must be
             conducted at a minimum of every 28 days. During counseling, subjects must be reminded
             to not share study drug and to not donate blood, sperm, or semen.

          -  If pregnancy or a positive pregnancy test does occur in a study subject or the partner
             of a male study subject during study participation, study drug must be immediately
             discontinued.

        Exclusion Criteria:

          -  Subjects who are candidates for and willing to undergo an autologous stem cell
             transplant.

          -  Subjects who are post allogeneic stem cell transplant.

          -  All subjects with active central nervous system (CNS) lymphoma. Subjects with previous
             CNS lymphoma that have been treated with chemotherapy, radiotherapy or surgery who
             have remained asymptomatic for 90 days (3 months) and demonstrate, no CNS lymphoma, as
             shown by lumbar puncture, CT scan or MRI, are eligible. (If required, lumbar puncture,
             CT or MRI should be performed during screening process.) Subjects should not be
             receiving corticosteroids.

          -  Prior history of malignancies other than NHL (except for basal cell or squamous cell
             carcinoma of the skin or carcinoma in situ of the cervix or breast) unless the subject
             has been free of the disease for > = 365 days (1 year).

          -  Any serious medical condition, laboratory abnormality, or psychiatric illness that
             would prevent the subject from signing the informed consent form.

          -  Known positive for HIV.

          -  Pregnant or lactating females.

          -  Concomitant Medications: Category I drugs that are generally accepted to have a risk
             of causing Torsades de Pointes including: (Patients must discontinue drug 7 days prior
             to starting dasatinib) quinidine, procainamide, disopyramide, amiodarone, sotalol,
             ibutilide, dofetilide, erythromycin, clarithromycin, chlorpromazine, haloperidol,
             mesoridazine, thioridazine, pimozide, cisapride, bepridil, droperidol, methadone,
             arsenic, chloroquine, domperidone,halofantrine, levomethadyl, pentamidine,
             sparfloxacin, lidoflazine

          -  Concurrent medical condition which may increase the risk of toxicity, including:

               1. Pericardial or pleural effusion of any grade

               2. Clinically-significant coagulation or platelet function disorder (e.g. known von
                  Willebrand's disease)

          -  History of significant bleeding disorder unrelated to cancer, including:

               1. Diagnosed congenital bleeding disorders (e.g., von Willebrand's disease)

               2. Diagnosed acquired bleeding disorder within one year (e.g., acquired anti-factor
                  VIII antibodies)

               3. Ongoing or recent (< = 3 months) clinically significant gastrointestinal bleeding

          -  Cardiac symptoms within 6 months:

               1. Uncontrolled angina, congestive heart failure, or MI

               2. History of clinically significant ventricular arrythmias: fibrillation, Torsades
                  de pointes, or tachycardia.

               3. Prolonged QTc interval on pre-entry electrocardiogram (> 450msec).

          -  Prior use of dasatinib.

          -  Use of any standard or experimental anti-cancer drug therapy within 28 days of the
             initiation (Day 1) of study drug therapy.

          -  Known active Hepatitis B or C.

          -  Prisoners or subjects who are compulsorily detained (involuntarily incarcerated) for
             treatment of either a psychiatric or physical (e.g., infectious) illness.