Clinical trial NCT05317000: 5-Azacytidine and/or Nivolumab in Resectable HPV-Associated HNSCC
Official title: A Window Trial of 5-Azacytidine or Nivolumab or Combination Nivolumab Plus 5-Azacytidine in Resectable HPV-Associated Head and Neck Squamous Cell Cancer
Study type: INTERVENTIONAL
Overall status: RECRUITING
Phase: PHASE2
Conditions: Squamous Cell Carcinoma of Head and Neck
Keywords: HPV- Associated Head and Neck Squamous Cell Cancer
Lead sponsor: Yale University
Sponsor class: OTHER
Collaborators: name: National Institute of Dental and Craniofacial Research (NIDCR)
First posted: 2022-04-07
Enrollment: 50
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL
Intervention model description: This Phase 2 study is a 3-arm window trial, randomizing patients to pre-operative treatment with 5-azacytidine alone, to nivolumab alone, or the combination of 5-azacytidine and nivolumab.
Primary purpose: TREATMENT

Brief summary: This study is being done because both 5-azacytidine and nivolumab can influence the immune system's response to HPV-associated head and neck cancer, and we wish to evaluate whether taking 5-azacytidine will make HPV-associated head and neck cancer more sensitive to treatment with nivolumab.

5-Azacytidine (5-AZA) is a chemotherapy, and nivolumab is an immunotherapy. Both drugs are approved for use in the US by the Food and Drug Administration (FDA) for use in the treatment of different types of cancer, and nivolumab is approved for use in head and neck cancer that has previously been treated with chemotherapy. Because they are not approved to be used together in HPV-associated head and neck cancer, these drugs are considered experimental in this study. For this study, the drugs will be used either together or separately.

Detailed description: This Phase 2 study is a 3-arm window trial, randomizing patients to pre-operative treatment with 5-azacytidine alone, to nivolumab alone, or the combination of 5-azacytidine and nivolumab. The primary endpoint is immune-related pathologic response, employing the quantitative immune-related pathologic response criteria (ir-PRC) of Cottrell et al. The secondary endpoint is augmentation of tumor infiltration of the tumor microenvironment as determined by a quantitative immunofluorescence score (QIF) measuring CD3+ lymphocytes and granzyme B expression. Secondary endpoints are objective response by modified RECIST, change in Ki-67, change in caspase activity, toxicity and hyperprogression. Patients are eligible with T1-3, N0-2, M0 p16-positive squamous cell carcinoma of the oropharynx deemed resectable by a surgical co-investigator. Patients must have normal absolute lymphocyte count, adequate end organ function, and not require full dose anticoagulation. Patients must be capable of providing, and provide, written informed consent. Patients on Arm A receive 5-azacytidine 75mg/m2 IV once daily day 1-5. Patients on Arm B receive nivolumab 240 mg IV days 1 and 15. Patients on Arm C receive 5-azacytidine as described above and receive nivolumab 240 mg IV days 2 and 16. On arms A and B surgery is performed during the period of days 16 to 18, and on Arm C during the period of days 17 to 18. The study will enroll 8 patients to 5-azacytidine monotherapy and 20 patients per arm to nivolumab or 5-azacytidine/nivolumab combination and has an 80% power to detect a significant difference in immune-related pathologic response, according to the criteria of Cottrell, between the combination arm and each of the monotherapy arms considered separately, using a one-sided Fisher's exact test at a significance level of 0.10.

Eligibility criteria: Inclusion Criteria:

1. Patients with resectable histologically or cytologically confirmed squamous cell carcinoma of the oropharynx.
2. T1-T3, N0-N2, M0 stage by AJCC 8th edition for HPV-initiated oropharynx cancer.
3. Resectability confirmed by a surgical co-investigator; evaluation may include operative endoscopy to discover second primaries and map tumor extent with biopsy
4. In addition to diagnostic biopsies, biopsies in clinic or at the time of operative endoscopy are required to yield primary tumor for research purposes equivalent to or greater than 3mm cup forceps biopsies X 3. Prior biopsies for research obtained with informed consent for the Yale Biosample Repository Protocol are acceptable if they meet the volume requirements above.
5. HPV-association confirmed by institutional p16 testing (CINtec antibody demonstrating strong and diffuse nuclear and cytoplasmic staining in at least 70% of tumor cells).
6. Age \> 18 years. 5-azacytidine and nivolumab are tolerated in the elderly and there is no upper age limit for patients with adequate performance status.
7. Males and females are eligible.
8. ECOG performance status 0 or 1.
9. Absolute neutrophil count (ANC) \> 1500/microliter, absolute lymphocyte count (ALC) \> 1000/microliter, hemoglobin \> 9 g/dl, platelets \> 100,000/microliter.
10. AST and ALT \< 2.5 x upper limit of normal. Bilirubin \< 1.5 x upper limit of normal.
11. Albumin \> 3.0 g/dl.
12. Creatinine \< 1.5 x upper limit of normal.
13. Women of child-bearing potential (WOCBP) must have a negative serum or urine pregnancy test (minimum sensitivity 25 IU/L or equivalent units of human chorionic gonadotropin) within 24 hours prior to the start of study treatment. An extension up to 72 hours prior to the start of study treatment is permissible in situations where results cannot be obtained within the standard 24-hour window.
14. Willing and able to provide written informed consent. Informed consent is required prior to research-related activities, including biopsy. However, if written informed consent for participation in the biosample repository protocol has been obtained, tissue obtained under that consent can be used to meet eligibility criterion 6.1.4.

Exclusion Criteria:

1. Medical contraindication to transoral surgery.
2. Full dose anticoagulation.
3. Concomitant invasive malignancy, or malignancy within 2 years except for hormonally responsive breast or prostate cancer, resected non-melanoma skin cancer, resected uterine cervical carcinoma or meningioma.
4. Inability to give informed consent.
5. Prior systemic therapy, radiation, or gross resection for the tumor under study.
6. Women may not be pregnant or breast-feeding.
7. Patients with active autoimmune disease, supraphysiologic systemic corticosteroid use within 7 days, and/or allergies/contraindications to the study drugs are excluded.

Primary outcomes:
measure: Increased response for combination therapy compared with either monotherapy
timeFrame: Day 16-18
Secondary outcomes:
measure: Increased activated T cell infiltration in 5-Aza containing arms compared to Nivolumab monotherapy arm
timeFrame: Day 16-18
measure: Secondary correlative evidence of anti-tumor response
timeFrame: Screening pre-treatment specimen Day - 8 through day -1; post treatment specimen Day 16-18
measure: Secondary correlative evidence of disease control
timeFrame: baseline; 14-30 days prior to surgery, 30 and 90 days post resection surgery
measure: Occurrence of toxicity
timeFrame: Time of 1st treatment to 30 days post
Other outcomes:
Locations:
city: New Haven
country: United States
facility: Yale University
state: Connecticut
Study officials:
affiliation: Yale University
name: Barbara Burtness, MD
role: PRINCIPAL_INVESTIGATOR
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