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About
This phase II clinical trial tests how well rigosertib plus pembrolizumab workings in treating patients with melanoma which cannot be removed by surgery (unresectable) or that has spread from where it first started (primary site) to other places in the body (metastatic), and that has not responded to previous treatment with PD-1 or PD-L1 inhibitors (refractory). Rigosertib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth and may change the immune system to make immunotherapy more effective. Immunotherapy with monoclonal antibodies, such as pembrolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Giving rigosertib in combination with pembrolizumab may be more effective in treating patients with unresectable metastatic melanoma that has not responded to previous treatment with PD-1 or PD-L1 inhibitors than giving either drug alone.
Full description
PRIMARY OBJECTIVE:
I. To determine the efficacy of rigosertib plus pembrolizumab in patients with metastatic melanoma who are refractory to treatment with a PD-1 inhibitor.
SECONDARY OBJECTIVES:
I. To evaluate progression-free survival (PFS) in patients with PD-1 inhibitor refractory metastatic melanoma receiving rigosertib plus pembrolizumab.
II. To evaluate safety, tolerability and adverse event profile of rigosertib plus pembrolizumab in patients with PD-1 inhibitor refractory metastatic melanoma.
III. To evaluate overall survival (OS) in patients with PD-1 inhibitor refractory metastatic melanoma receiving rigosertib plus pembrolizumab.
EXPLORATORY OBJECTIVE:
I. To evaluate change in tumor-infiltrating lymphocytes (TILs) upon treatment with rigosertib plus pembrolizumab in patients with metastatic melanoma that is refractory to PD-1 inhibitor.
OUTLINE:
Patients receive rigosertib orally (PO) plus pembrolizumab intravenously (IV) throughout the study. Patients undergo computed tomography (CT) or magnetic resonance imaging (MRI) and blood sample collection at screening and on study, and may also undergo tissue biopsy at screening and on study.
Enrollment
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Inclusion criteria
Male/female participants who are at least 18 years of age on the day of signing informed consent with histologically confirmed diagnosis of unresectable or metastatic cutaneous melanoma will be enrolled in this study.
Male participants: A male participant must agree to use a contraception during the treatment period and for at least 6 days (140 hours) plus an additional 90 days (a spermatogenesis cycle) after the last dose of study treatment and refrain from donating sperm during this period.
Female participants: A female participant is eligible to participate if she is not pregnant, not breastfeeding, and at least one of the following conditions applies:
Participants must have progressed on treatment with an anti-PD-1/L1 monoclonal antibody (mAb) administered either as monotherapy or in combination with other checkpoint inhibitors or other therapies. PD-1 inhibitor treatment progression is defined by meeting the following criteria:
For patients treated with anti-PD-1/L1 mAb in the unresectable/metastatic setting:
For patients treated with anti-PD-1/L1 mAb in the adjuvant setting:
Progressive disease is determined according to iRECIST (ie, progression by Response Evaluation Criteria in Solid Tumors [RECIST] version [v]1.1 on first imaging, confirmed with repeat imaging performed at least 4 weeks later). Once disease progression is confirmed, the initial date of disease progression documentation will be considered the date of disease progression OR
The determination of clinical progression is made by the investigator.
Participants whose disease harbors BRAF V600 mutation must have been exposed to BRAF-targeted therapy, with BRAF-targeted treatment discontinued for either progressive disease or intolerable toxicity.
The participant (or legally acceptable representative if applicable) provides written informed consent for the trial.
Have measurable disease based on iRECIST. Lesions situated in a previously irradiated area are considered measurable if progression has been demonstrated in such lesions.
Have provided archival tumor tissue sample or newly obtained (within 3 months of enrollment) core or excisional biopsy of a tumor lesion not previously irradiated. Formalin-fixed, paraffin embedded (FFPE) tissue blocks are preferred to slides. Newly obtained biopsies are preferred to archived tissue.
Have an Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1. Evaluation of ECOG is to be performed within 7 days prior to the first dose of study intervention.
White blood cell (WBC) >= 3,000/uL. (Laboratory values must be collected within 10 days prior to the start of study intervention [ie, first dose of study treatment]).
Absolute neutrophil count (ANC) >= 1,500/uL. (Laboratory values must be collected within 10 days prior to the start of study intervention [ie, first dose of study treatment]).
Platelets >= 75,000/uL. (Laboratory values must be collected within 10 days prior to the start of study intervention [ie, first dose of study treatment]).
Hemoglobin >= 9 g/dL or >= 5.6 mmol/L. (Laboratory values must be collected within 10 days prior to the start of study intervention [ie, first dose of study treatment]).
* Criterion must be met without erythropoietin dependency and without packed red blood cell (pRBC) transfusion within last 2 weeks.
Serum creatinine =< 1.5 x upper limit of normal (ULN) OR measured or calculated creatinine clearance >= 30 mL/min for subject with creatinine levels > 1.5 x institutional ULN (glomerular filtration rate [GFR] can also be used in place of creatinine or creatinine clearance [CrCl]). (Laboratory values must be collected within 10 days prior to the start of study intervention [ie, first dose of study treatment]).
Serum total bilirubin =< 1.5 X ULN OR =< 3.0 mg/dL for patients with Gilbert syndrome. (Laboratory values must be collected within 10 days prior to the start of study intervention [ie, first dose of study treatment]).
Aspartate aminotransferase (AST) (serum glutamic oxaloacetic transaminase [SGOT]) and alanine aminotransferase (ALT) (serum glutamic pyruvic transaminase [SGPT]) =< 2.5 X ULN for subjects without liver metastases OR =< 5 X ULN for subjects with liver metastases. (Laboratory values must be collected within 10 days prior to the start of study intervention [ie, first dose of study treatment]).
International normalized ration (INR) OR prothrombin time (PT) =< 1.5 x ULN unless participant is receiving anticoagulant therapy as long as PT or activated partial thromboplastin time (aPTT) is within therapeutic range of intended use of anticoagulants. (Laboratory values must be collected within 10 days prior to the start of study intervention [ie, first dose of study treatment]).
Activated partial thromboplastin time (aPTT) =< 1.5 x ULN unless participant is receiving anticoagulant therapy as long as PT or aPTT is within therapeutic range of intended use of anticoagulants. (Laboratory values must be collected within 10 days prior to the start of study intervention [ie, first dose of study treatment]).
Urinalysis negative for hematuria with negative blood and 0 red blood cells (RBCs) (Laboratory values must be collected within 10 days prior to the start of study intervention [ie, first dose of study treatment]).
Exclusion criteria
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29 participants in 1 patient group
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Vanderbilt-Ingram Services for Timely Access
Data sourced from clinicaltrials.gov
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