A Randomized Pilot Trial of Adjuvant Therapy Based on Pathologic Response After Neoadjuvant Encorafenib and Binimetinib in Advanced Melanoma
The purpose of this study is to assess rate of disease relapse and hazard rate of disease relapse after neoadjuvant therapy based on the statuses of pathologic complete response or non-pathologic complete response, and postoperative adjuvant therapy.
2.1 PRIMARY OBJECTIVE
To estimate the rate of disease relapse and hazard rate after neoadjuvant therapy based on the statuses of pathologic CR or non-pCR, and postoperative adjuvant therapy.
Histologically confirmed diagnosis of melanoma. Any primary or unknown origin is permitted.
Melanoma must have a BRAFV600 mutation (using a CLIA-validated assay), either stage III (B/C/D) or Stage IV (AJCC 8th edition).
ECOG performance status > Adequate laboratory parameters as defined by protocol
Female participants of childbearing potential as described in protocol, must have a negative serum or urine HCG test result. Female participants of childbearing potential must agree to use methods of contraception that are highly effective or acceptable, as described in Section 4.3.1. Participants must agree to not use hormonal contraceptives, as encorafenib can result in decreased concentration and loss of efficacy. Male participants must agree to use methods of contraception that are highly effective or acceptable per protocol.
Participants may have received prior therapy with BRAF and/or a MEK inhibitor if it was completed at least 6 months prior to study enrollment. Patients who had prior disease progression while on BRAF/MEK inhibitor therapy are not eligible. (Progression after stopping treatment is permitted.) Participants may have received prior therapy
an anti-PD-1/PD-L1 or CTLA-4 inhibitor.
Participants must not have had adverse events related to encorafenib and/or binimetinib specifically, that required discontinuation of one or both drugs due to toxicity.
Participants who have had major surgery or radiotherapy > Participants must be willing to avoid consuming grapefruit, pomegranates, star fruits, Seville oranges or products containing the juice during the study while they are taking encorafenib/binimetinib.
Uncontrolled or symptomatic brain metastases or leptomeningeal carcinomatosis that are not stable, require steroids, are potentially life-threatening or have required radiation within 28 days prior to starting study drug. Patients with previously treated brain metastases may participate provided they are stable (e.g.,without evidence of progression by radiographic imaging for at least 28 days before the first dose of study treatment and neurologic symptoms have returned to baseline).
Impaired cardiovascular function as below:
a. Congestive heart failure requiring treatment (New York Heart Association Grade > 3);
b. presence of uncontrolled atrial fibrillation or uncontrolled paroxysmal supraventricular tachycardia
c. Baseline QTcF interval > 500 ms
Known history of retinal vein occlusion (RVO)
Current use of a prohibited medication (including herbal medications, supplements, or foods), as described in protocol, or use of a prohibited medication > Participants with a prior or concurrent malignancy whose natural history or treatment (in the opinion of the treating physician) does not have the potential to interfere with the safety or efficacy assessment of the investigational regimen are eligible for this trial.
Participants with known human immunodeficiency virus (HIV)-infection are eligible providing they are on effective anti-retroviral therapy and have undetectable viral load at their most recent viral load test and within 90 days prior to randomization.
Participants with a known history of hepatitis C virus (HCV) infection must have been treated and cured. Participants with HCV infection who are currently on treatment must have an undetectable HCV viral load prior to randomization.
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