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A Randomized Phase II Study of Nivolumab Versus Nivolumab and BMS-986016 (Relatlimab) as Maintenance Treatment After First-Line Treatment With Platinum-Gemcitabine-Nivolumab for Patients With Epstein-Barr Virus-Associated Recurrent/Metastatic Nasopharyngeal Carcinoma (REMAIN)

Description

Brief Summary
This phase II trial tests the addition of BMS-986016 (relatlimab) to the usual immunotherapy after initial treatment for nasopharyngeal cancer that has come back after a period of improvement (recurrent) or that has spread from where it first started (primary site) to other places in the body (metastatic). Relatlimab is a monoclonal antibody that may interfere with the ability of tumor cells to grow and spread. The usual approach of treatment is initial treatment with chemotherapy such as the combination of cisplatin (or carboplatin) and gemcitabine, along with immunotherapy such as nivolumab. After the initial treatment is finished, patients may continue to receive additional immunotherapy. Carboplatin is in a class of medications known as platinum-containing compounds. It works in a way similar to the anticancer drug cisplatin, but may be better tolerated than cisplatin. Carboplatin works by killing, stopping or slowing the growth of tumor cells. Immunotherapy with monoclonal antibodies, such as nivolumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Gemcitabine is a chemotherapy drug that blocks the cells from making deoxyribonucleic acid (DNA) and may kill cancer cells. Giving BMS-986016 in addition to the usual immunotherapy after initial treatment may extend the time without the tumor cells grow or spread longer than the usual approach in patients with recurrent or metastatic nasopharyngeal cancer.


Detailed Description
PRIMARY OBJECTIVE: I. To determine if adding BMS-986016 (relatlimab) to nivolumab maintenance therapy shows a signal of improved progression-free survival (PFS) according to Response Evaluation Criteria in Solid Tumors (RECIST) 1.1 in patients who do not progress following treatment with platinum-gemcitabine-nivolumab combination in the first-line treatment of recurrent and/or metastatic nasopharyngeal carcinoma (R/M NPC). SECONDARY OBJECTIVES: I. To determine if adding BMS-986016 (relatlimab) to nivolumab maintenance improves overall survival (OS) compared to nivolumab maintenance alone. II. To compare patterns of failure (local-regional relapse and distant metastasis) between treatment arms. III. To determine if adding BMS-986016 (relatlimab) to nivolumab maintenance improves objective response, duration of response, and disease control rate compared to nivolumab maintenance alone. IV. To evaluate the tolerability of nivolumab-BMS-986016 (relatlimab) maintenance and assess and compare toxicity between arms based on the Common Terminology Criteria for Adverse Events version 5.0 (CTCAE v5.0) criteria. V. To evaluate baseline plasma Epstein-Barr virus (EBV) DNA (< 2000 copies/mL versus [vs.] >= 2000 copies/mL) as a prognostic biomarker. VI. To validate post-induction plasma EBV DNA (detectable [>= 1 copies/mL] vs. undetectable [0 copies/mL]) as a prognostic biomarker. EXPLORATORY OBJECTIVES: I. To collect blood and tissue specimens for future translational science studies. II. To assess post-induction plasma EBV DNA (detectable [>= 1 copies/mL] vs. undetectable [0 copies/mL]) as a predictive biomarker. OUTLINE: INDUCTION THERAPY: Patients receive nivolumab intravenously (IV) over 30 minutes, cisplatin IV or carboplatin IV over 30-60 minutes on day 1 of each cycle and gemcitabine IV over 30 minutes on days 1 and 8 of each cycle. Cycles repeat every 28 days for up to 6 cycles in the absence of disease progression or unacceptable toxicity. Patients undergo computed tomography (CT) or magnetic resonance imaging (MRI) and blood sample collection during screening and on study. MAINTENANCE THERAPY: Patients who do not progress radiologically are randomized to 1 of 2 arms. ARM I: Patients receive nivolumab IV over 30 minutes. Cycles repeat every 4 weeks for up to 2 years in the absence of disease progression or unacceptable toxicity. Patients undergo CT or MRI on study. Patients also undergo positron emission tomography (PET)/CT or bone scan as clinically indicated. ARM II: Patients receive nivolumab IV over 30 minutes and relatlimab IV over 30-90 minutes. Cycles repeat every 4 weeks for up to 2 years in the absence of disease progression or unacceptable toxicity. Patients undergo CT or MRI on study. Patients also undergo PET/CT or bone scan as clinically indicated. After completion of study treatment, patients are followed up every 4 months for 2 years, every 6 months for 5 years, and then annually.

Phase

N/A

Inclusion and Exclusion Criteria

  • Inclusion Criteria:
  • PRIOR TO STEP 1 REGISTRATION:
  • Pathologically (histologically or cytologically) proven diagnosis of nasopharyngeal carcinoma (NPC) that has recurred locoregionally and/or is present at distant sites. Patients who present with metastatic disease (de novo) at diagnosis are also eligible. For locoregional recurrence, the disease must not be amenable to potentially curative surgery or re-irradiation. Eligible patient must have the following characteristics:
  • Tumor showing (histological/cytological) Epstein-Barr encoded ribonucleic acid (EBER)-positivity (e.g., In situ hybridization, immunohistochemistry) or
  • A known history of detectable plasma EBV DNA (via a polymerase chain reaction [PCR]-based assay) at any time point since the initial diagnosis of NPC.
  • Measurable disease as defined by RECIST 1.1 criteria. Lesion(s) that have been irradiated previously can be counted as measurable as long as radiological progression after the prior radiation therapy has been demonstrated.
  • Contrast enhanced CT scan of the chest. The contrast enhanced CT component of a whole-body PET-CT is also acceptable. The plain (non-contrast) CT component of a PET-CT is not acceptable.
  • CT the abdomen and pelvis, if clinically indicated (diagnostic quality with contrast, unless contraindicated).
  • Patients with known locoregional disease must have contrast enhanced MRI or CT of the nasopharynx and neck as this disease site(s) may be assessed as target lesions. For patients without known locoregional disease, imaging of the nasopharynx and neck is optional.
  • Symptomatic and active brain metastases and/or leptomeningeal metastasis on CT and/or MRI imaging: Patients who have prior therapies for brain and leptomeningeal metastasis or cord/cauda compression who are clinically stable for >= 2 months prior to registration and have discontinued systemic steroids therapy (> 10 mg/day prednisone or equivalent) > 4 weeks prior to registration are eligible.
  • Patients with base of skull involvement by NPC are allowed unless their disease is directly invading the brain parenchyma, associated with clinical symptoms and/or significant vasogenic edema on radiological imaging.
  • Age >= 18 years.
  • Eastern Cooperative Oncology Group (ECOG) (Zubrod) performance status of 0-2.
  • Negative urine or serum pregnancy test (in persons of childbearing potential) within 14 days prior to registration. Childbearing potential is defined as any person who has experienced menarche and who has not undergone surgical sterilization (hysterectomy or bilateral oophorectomy) or who is not postmenopausal.
  • Absolute neutrophil count (ANC) >= 1500 cells/mm^3.
  • Platelets >= 100,000 cells/mm^3.
  • Hemoglobin (Hgb) >= 8.0 g/dL (Transfusion is accepted. Erythropoietin dependency not accepted.).
  • Total bilirubin =< 1.5 × institutional upper limit of normal (ULN) or direct bilirubin =< ULN for patients with total bilirubin levels > 1.5 × ULN. Patients with known Gilbert's disease who have serum bilirubin level =< 3 × ULN may be enrolled.
  • Alanine transaminase (ALT) (serum glutamic pyruvic transaminase [SGPT]) =< 3 × ULN (=< 5 × ULN for patients with liver metastases).
  • Serum creatinine =< 1.5 × ULN or calculated creatinine clearance (CrCl) based on Cockcroft-Gault equation >= 30 mL/min for patients with serum creatinine levels > 1.5 × ULN. Cisplatin or carboplatin may be used at the discretion of the investigator - except for patients with CrCl between 30-50 mL/min, for whom carboplatin should be used instead of cisplatin. CrCl must be > 50 mL/min for cisplatin to be used.
  • Albumin-adjusted calcium level based on corrected calcium equation =< 1.5 × ULN (patients are allowed to have treatment for hypercalcemia prior to starting treatment).
  • No prior systemic treatment for recurrent/metastatic (R/M) NPC including cytotoxic chemotherapy. Prior treatment for non-recurrent and non-metastatic NPC is allowed.
  • No prior treatment with a PD-1 inhibitor (except if given as adjuvant or neoadjuvant therapy for NPC), PD-L1 inhibitor, anti-PD-L2 inhibitor, LAG-3 inhibitor, CTLA-4 inhibitor (except if given as adjuvant or neoadjuvant therapy for non-recurrent and non-metastatic NPC), or any other antibody or drug specifically targeting T-cell co-stimulation or immune checkpoint pathways.
  • The interval between the last dose of curative-intent treatment for non-recurrent, non-metastatic NPC, including definitive radiotherapy (RT) and/or induction, concurrent, or adjuvant chemotherapy and recurrence must be ˃ 6 months.
  • Clinically significant toxicities from any prior systemic therapy or radiotherapy must have resolved to grade 0 or 1 as per National Cancer Institute (NCI) CTCAE v 5.0 - except alopecia, dry mouth, dysgeusia, dysphagia, and fatigue. Patients with a history of grade 3-4 cisplatin related neuropathy must have recovered to grade 0-2 prior to registration. Patients with a history of hearing impairment, or ototoxicity from prior cisplatin, of any grade are allowed.
  • No prior palliative RT within 30 days prior to registration. This includes RT given with palliative intent to recurrent/metastatic sites. The irradiated sites must not be the only sites of measurable recurrent disease.
  • No major surgical procedures within 30 days prior to registration.
  • No history of unstable angina requiring hospitalization within the last 6 months.
  • No history of myocardial infarction within the last 6 months.
  • New York Heart Association Functional Classification II or better (New York Heart Association [NYHA] Functional Classification III/IV are not eligible). Patients with symptomatic coronary artery disease, congestive heart failure or a known history of having a left ventricular ejection fraction < 50% must be stably controlled with medication in the opinion of the treating physician, in consultation with a cardiologist if appropriate.
  • No prior history of myocarditis.
  • No active infection requiring IV antibiotics, IV antiviral, or IV antifungal treatments at the time of study registration.
  • No history of (non-infectious) pneumonitis that required steroids or current pneumonitis requiring steroids and/or immunosuppressive therapy, idiopathic pulmonary fibrosis, drug-induced pneumonitis, organizing pneumonia (i.e., bronchiolitis obliterans), or idiopathic pneumonitis.
  • No history of multi-drug resistant mycobacterium tuberculosis (TB) or active TB, as defined by systemic treatment received =< 2 years prior to registration. Note: Patients who had a history of treated TB ˃ 2 years prior to registration are allowed.
  • No prior solid organ transplant or bone marrow transplant.
  • No conditions requiring systemic treatment with either immunosuppressive doses of corticosteroids (> 10 mg daily prednisone or equivalents) or other immunosuppressive medications within 14 days of registration. Inhaled or topical steroids and adrenal replacement doses < 10 mg daily prednisone equivalents are permitted in the absence of active autoimmune disease. Steroid premedication for the prophylaxis of CT contrast-related allergies is allowed. The use of dexamethasone as an anti-emetic premedication prior to chemotherapy is also allowed.
  • No active autoimmune disease requiring systemic treatment (i.e., disease modifying agents, corticosteroids, or immunosuppressive drugs) within the past 2 years. These may include (but not limited to) patients with a history of immune-related neurologic disease, multiple sclerosis, autoimmune (demyelinating) neuropathy, Guillain-Barre syndrome, myasthenia gravis; systemic autoimmune disease such as systemic lupus erythematosus (SLE), rheumatoid arthritis, connective tissue diseases, scleroderma, inflammatory bowel disease (IBD), Crohn's disease, ulcerative colitis, autoimmune hepatitis, glomerulonephritis; and patients with a history of toxic epidermal necrolysis (TEN), Stevens-Johnson syndrome, or phospholipid syndrome.
  • Note: Patients are permitted to enroll if they have vitiligo; type I diabetes mellitus; hypothyroidism, pituitary or adrenal insufficiency requiring only hormone replacement; alopecia; and/or psoriasis not requiring systemic treatment. Conditions not expected to recur in the absence of an external trigger are permitted to enroll.
  • No prior live vaccine within 30 days prior to registration. Examples of live vaccines include, but are not limited to, the following: measles, mumps, rubella, varicella/zoster, yellow fever, rabies, Bacillus Calmette-Guerin (BCG), and typhoid vaccine. Seasonal influenza vaccines for injection are generally killed virus vaccines and are allowed; however, intranasal influenza vaccines (e.g., FluMist [registered trademark]) are live attenuated vaccines and are not allowed. Coronavirus disease 2019 (COVID-19) vaccines that are approved by the local drug regulatory authority of the participating region are allowed.
  • No known history of grade 3-4 allergic reaction or hypersensitivity reaction to cisplatin, carboplatin, or gemcitabine.
  • No known history of grade 4 hypersensitivity (or infusion) reaction to any monoclonal antibody. Patients who had prior grade 3 hypersensitivity (or infusion) reaction but could tolerate resumption of the antibody treatment after appropriate pre-medication are eligible.
  • PRIOR TO STEP 2 REGISTRATION:
  • Collection of plasma EBV DNA at baseline is mandatory for all patients prior to Step 2 registration and induction treatment.
  • Note: Submission of the baseline sample will be batch shipped.
  • PRIOR TO STEP 3 REGISTRATION/RANDOMIZATION: PATIENTS WITHOUT PROGRESSIVE DISEASE (PD) ONLY:
  • All patients must have received minimum of 3 cycles, and up to a maximum of 6 cycles of induction treatment within 20 weeks from cycle 1, day 1 of induction treatment (i.e., patients must have completed all induction treatment within 20 weeks from cycle 1 day 1, including the treatment breaks). Patients must have completed 6 cycles of induction treatment, except in the following circumstances:
  • Significant dose delays as a result of treatment-related toxicities.
  • Intercurrent illness(s), that rendered the patient unable to continue induction treatment.
  • Note: If a patient received < 6 cycles of induction treatment for reasons other than the above circumstances, they will not be eligible for randomization.
  • A CT scan within 30 days prior to Step 3 registration/randomization is required. If the most recent scan performed is not within this time frame, a repeat scan is required to assess response.
  • Did not meet any criteria that result in permanent discontinuation of study treatment during induction treatment phase.
  • Must meet the criteria for starting/resuming a new cycle of maintenance treatment.
  • Did not experience any nivolumab-related autoimmune toxicities that would result in permanent discontinuation of nivolumab during the induction treatment phase.
  • Collection of the plasma EBV DNA post-induction treatment is mandatory.
  • Note: Submission of the post-induction sample will be batch shipped.

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