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Dabrafenib, Trametinib, and Navitoclax in Treating Patients With BRAF Mutant Melanoma or Solid Tumors That Are Metastatic or Cannot Be Removed by Surgery

Status: Recruiting
Phase: Phase 1/Phase 2
Diagnosis: Cutaneous Skin Cancer
NCT ID: NCT01989585 (View complete trial on
DFCI Protocol ID: 13-424


This partially randomized phase I/II trial studies the side effects and best dose of dabrafenib, trametinib, and navitoclax and to see how well they work in treating patients with v-raf murine sarcoma viral oncogene homolog B (BRAF) mutant melanoma or solid tumors that have spread to other parts of the body or cannot be removed by surgery. Dabrafenib, trametinib, and navitoclax may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth.


Conducting Institutions:
Massachusetts General Hospital, Dana-Farber Cancer Institute

Overall PI:
Ryan Sullivan, MD, Beth Israel Deaconess Medical Center

Site-responsible Investigators:

Massachusetts General Hospital: Cancer Trials Call Center, 877-789-6100

Eligibility Criteria

Inclusion Criteria: - FOR PHASE I: patients must have histologically confirmed, BRAF-mutant (V600E/K) malignancy (molecularly confirmed using validated, commercially available assay performed in a Clinical Laboratory Improvement Amendments [CLIA]-approved laboratory) that is metastatic or unresectable and for which standard curative or palliative measures do not exist or are no longer effective - If test at CLIA-certified lab used a non-Food and Drug Administration (FDA) approved method, information about the assay must be provided; (FDA approved tests for BRAF V600 mutations in melanoma include: THxID BRAF Detection Kit and Cobas 4800 BRAF V600 mutation test) - FOR PHASE II: patients must have histologically confirmed, BRAF-mutant (V600E/K) melanoma (molecularly confirmed using validated, commercially available assay performed in a CLIA-approved laboratory) that is metastatic or unresectable and for which standard curative measures do not exist or are no longer effective - If test at CLIA-certified lab used a non-FDA approved method, information about the assay must be provided; (FDA approved tests for BRAF V600 mutations in melanoma include: THxID BRAF detection kit and Cobas 4800 BRAF V600 mutation test) - Patients must have measurable disease, defined as at least one lesion that can be accurately measured in at least one dimension (longest diameter to be recorded for non-nodal lesions and short axis for nodal lesions) as >= 20 mm with conventional techniques or as >= 10 mm with spiral computed tomography (CT) scan, magnetic resonance imaging (MRI), or calipers by clinical exam - Prior therapy is allowed: - Phase I: for patients enrolled in the phase I portion of the study, patients may have received any number of prior lines of therapy including treatment with a BRAF and/or mitogen-activated protein kinase kinase (MEK) inhibitor; prior navitoclax use will not be allowed, unless the patient received < 7 days of navitoclax lead-in on this or another study and had to stop for reasons other than toxicity or disease progression - Phase II: for patients enrolled in the phase II portion of the study, patients may have received prior immunotherapy (including high-dose interleukin [IL]-2, ipilimumab, nivolumab, and other anti-programmed cell death 1 [PD1]/programmed cell death 1 ligand 1 [PDL1] antibodies) or chemotherapy, however prior navitoclax, BRAF inhibitor and/or MEK inhibitor therapy will not be allowed - Eastern Cooperative Oncology Group (ECOG) performance status =< 1 (Karnofsky >= 70%) - Life expectancy of greater than 3 months - Leukocytes >= 3,000/mcL - Absolute neutrophil count >= 1 x 10^9/L - Hemoglobin >= 9 g/dl (patients may be transfused to this level) - Platelets >= 100,000/mcL - Total bilirubin =< 1.5 x institutional upper limit of normal OR > 1.5 x institutional upper limit of normal allowed if direct bilirubin is within normal range - Aspartate aminotransferase (AST) (serum glutamic oxaloacetic transaminase [SGOT])/alanine aminotransferase (ALT) (serum glutamate pyruvate transaminase [SGPT]) =< 2.5 x institutional upper limit of normal - Prothrombin time (PT)/international normalized ratio (INR) and partial thromboplastin time (PTT) < 1.3 x upper limit of normal (ULN) - Serum creatinine =< 1.5 mg/dL OR creatinine clearance >= 50 mL/min/1.73 m^2 - Left ventricular ejection fraction >= institutional lower limit of normal (LLN) by echocardiogram (ECHO) - Patients must have a corrected QT (QTc) interval of less than 480 msec - Women of child-bearing potential and men must agree to use adequate contraception (barrier method of birth control, or abstinence; hormonal contraception is not allowed) prior to study entry, for the duration of study participation, and for 4 months after completion of study drug administration; should a woman become pregnant or suspect she is pregnant while she is participating in this study, she should inform her treating physician immediately - Therapeutic level dosing of warfarin can be used with close monitoring of PT/INR by the site; exposure may be decreased due to enzyme induction when on treatment, thus warfarin dosing may need to be adjusted based upon PT/INR; consequently, when discontinuing dabrafenib, warfarin exposure may be increased and thus close monitoring via PT/INR and warfarin dose adjustments must be made as clinically appropriate; prophylactic low dose warfarin may be given to maintain central catheter patency - Able to swallow and retain oral medication and must not have any clinically significant gastrointestinal abnormalities that may alter absorption such as malabsorption syndrome or major resection of the stomach or bowels - Ability to understand and the willingness to sign a written informed consent document Exclusion Criteria: - Patients who have had immunotherapy, chemotherapy or radiotherapy within 14 days prior to the first dose of navitoclax, or prior systemic anti-cancer therapy (chemotherapy with delayed toxicity, extensive radiation therapy, immunotherapy, biologic therapy, or vaccine therapy) within the last 3 weeks prior to first dose of dabrafenib and/or trametinib; chemotherapy regimens without delayed toxicity within the last 2 weeks preceding the first dose of study treatment; biologics will not be allowed within 30 days prior to, or during, navitoclax administration - In the phase I portion of the study, patients must not have received prior navitoclax, unless the patient received < 7 days of navitoclax lead-in on this or another study and had to stop for reasons other than toxicity or disease progression; in the phase II portion of the study, prior navitoclax, BRAF inhibitor and MEK inhibitor will be prohibited - Patients who are receiving any other investigational agents have received any other investigational drugs within 28 days (or five half-lives, whichever is shorter; with a minimum of 14 days from the last dose) preceding the first dose of study treatment and during the study - Patients must have no clinical evidence of leptomeningeal or brain metastasis causing spinal cord compression that are symptomatic or untreated or not stable for >= 3 months (must be documented by imaging) or requiring corticosteroids; subjects on a stable dose of corticosteroids > 1 month or who have been off of corticosteroids for at least 2 weeks can be enrolled with approval of the Cancer Therapy Evaluation Program (CTEP) medical monitor; subjects must also be off of enzyme-inducing anticonvulsants for > 4 weeks - History of allergic reactions attributed to compounds of similar chemical or biologic composition to navitoclax, dabrafenib, or trametinib, or excipients or to dimethyl sulfoxide (DMSO) - Uncontrolled intercurrent illness including, but not limited to, ongoing or active serious infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, uncontrolled diabetes, or psychiatric illness/social situations that would limit compliance with study requirements - Pregnant women are excluded from this study; breastfeeding should be discontinued if the mother is treated with the study drugs - Human immunodeficiency virus (HIV)-positive patients on combination antiretroviral therapy are ineligible - History of another malignancy other than the study indication under this trial within 5 years of study enrollment; does not apply to subjects who underwent successful definitive resection of basal or squamous cell carcinoma of the skin, superficial bladder cancer, in situ cervical cancer, in situ breast cancer, or other in situ cancers; exception: patients with history of retrovirus-associated deoxyribonucleic acid (DNA) sequence (RAS) mutation-positive tumors are not eligible regardless of interval from the current study; prospective RAS testing is not required; however, if the results of previous RAS testing are known, they must be used in assessing eligibility - History of interstitial lung disease or pneumonitis - History or current evidence/risk of retinal vein occlusion (RVO) or central serous retinopathy (CSR): - History of RVO or CSR, or predisposing factors to RVO or CSR (e.g., uncontrolled glaucoma or ocular hypertension, uncontrolled systemic disease such as hypertension, diabetes mellitus, or history of hyperviscosity or hypercoagulability syndromes) - Visible retinal pathology as assessed by ophthalmic exam that is considered a risk factor for RVO or CSR such as evidence of new optic disc cupping, evidence of new visual field defects, and intraocular pressure > 21 mmHg - History or evidence of cardiovascular risk including any of the following: - A QT interval corrected for heart rate using the Bazett's formula QTcB >= 480 msec - History or evidence of current clinically significant uncontrolled arrhythmias (exception: patients with controlled atrial fibrillation for > 30 days prior to randomization are eligible) - History of acute coronary syndromes (including myocardial infarction and unstable angina), coronary angioplasty, or stenting within 6 months prior to randomization - History or evidence of current >= class II congestive heart failure as defined by the New York Heart Association (NYHA) functional classification system - Treatment-refractory hypertension defined as a blood pressure of systolic > 140 mmHg and/or diastolic > 90 mmHg which cannot be controlled by anti-hypertensive therapy - Abnormal cardiac valve morphology (>= grade 2) documented by echocardiogram (subjects with grade 1 abnormalities [i.e., mild regurgitation/stenosis] can be entered on study); subjects with moderate valvular thickening should not be entered on study - Known history of hepatitis B virus (HBV), or hepatitis C virus (HCV) infection (patients with chronic or cleared HBV and HCV infection are eligible); it is not necessary to conduct HBV and HCV testing at screening - Subject has an underlying condition predisposing them to bleeding or currently exhibits signs of clinically significant bleeding - Subject has a recent history of non-chemotherapy-induced thrombocytopenic-associated bleeding within 1 year prior to the first dose of study drug - A history of glucose-6-phosphate dehydrogenase (G6PD) deficiency - Unresolved toxicity of National Cancer Institute Common Terminology Criteria for Adverse Events, version 4.0 (NCI CTCAE v4.0) grade 2 or higher from previous anti-cancer therapy, except alopecia, at the time of randomization - The following concomitant medications are not allowed during navitoclax administration: clopidogrel, ibuprofen, tirofiban, warfarin, and other anticoagulants, drugs, or herbal supplements that affect platelet function are excluded, with the exception of low-dose anticoagulation medications (such as heparin) that are used to maintain the patency of a central intravenous catheter; aspirin will not be allowed within 7 days prior to the first dose of navitoclax or during navitoclax administration; however, subjects who have previously received aspirin therapy for thrombosis prevention may resume a low dose (i.e., maximum 100 mg QD) of aspirin if platelet counts are stable (>= 50,000/mm^3) through 6 weeks of navitoclax administration; all decisions regarding treatment with aspirin therapy will be determined by the investigator in conjunction with the medical monitor - Current use of a prohibited medication; the following medications or non-drug therapies are prohibited: - Other anti-cancer therapy while on study treatment; (note: megestrol [Megace] if used as an appetite stimulant is allowed) - Concurrent treatment with bisphosphonates is permitted; however, treatment must be initiated prior to the first dose of study therapy; prophylactic use of bisphosphonates in patients without bone disease is not permitted, except for the treatment of osteoporosis - Concurrent use of all herbal supplements is prohibited during the study (including, but not limited to, St. John's wort, kava, ephedra [ma huang], ginkgo biloba, dehydroepiandrosterone [DHEA], yohimbe, saw palmetto, or ginseng) - Anticoagulants or antiplatelet agents except for low-dose, 81 mg aspirin - Caution should be exercised when dosing navitoclax concurrently with cytochrome P450, family 2, subfamily C, peptide 8 (CYP2C8) and cytochrome P450, family 2, subfamily C, peptide 9 (CYP2C9) substrates; common CYP2C8 substrates include paclitaxel, statins, and glitazones, whereas CYP2C9 substrates include phenytoin; when possible, investigators should switch to alternative medications or monitor the patients closely; cytochrome P450, family 3, subfamily A (CYP3A) inhibitors such as ketoconazole and clarithromycin are not allowed 7 days prior to the first dose of navitoclax or during navitoclax administration - Patients receiving any medications or substances that are strong inhibitors or inducers of CYP3A or CYP2C8 are ineligible; current use of, or intended ongoing treatment with: herbal remedies (e.g., St. John's wort), or strong inhibitors or inducers of permeability-glycoprotein (Pgp) or breast cancer resistance protein 1 (Bcrp1) should also be excluded; below are a few examples of the agents: - Strong inducers of CYP3A or CYP2C8: - Antibiotics: rifamycin class agents (e.g., rifampin, rifabutin, rifapentine) - Anticonvulsants: carbamazepine, oxcarbazepine, phenobarbital, phenytoin, s-mephenytoin - Miscellaneous: bosentan, St. John's wort - Strong inhibitors of CYP3A or CYP2C8 - Antibiotics: clarithromycin, telithromycin, troleandomycin - Antidepressants: nefazodone - Antifungals: itraconazole, ketoconazole, posaconazole, voriconazole - Hyperlipidemia: gemfibrozil - Antiretroviral: ritonavir, saquinavir, atazanavir - Miscellaneous: conivaptan
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