An Open-Label, Single-arm Study to Evaluate the Safety and Efficacy of Dabrafenib in Combination With Trametinib in Chinese Patients With BRAF V600E Mutation-Positive Metastatic Non-Small Cell Lung Cancer

  • End date
    Nov 15, 2024
  • participants needed
  • sponsor
    Novartis Pharmaceuticals
Updated on 27 October 2022
measurable disease
growth factor
neutrophil count
cancer chemotherapy
stage iv non-small cell lung cancer
lung carcinoma
secondary malignant neoplasm of liver


The purpose of this study is to evaluate the safety and efficacy of dabrafenib in combination with trametinib in Chinese patients with BRAF V600E mutation-positive metastatic Non-Small Cell Lung Cancer. The general study design has been discussed and agreed with Chinese Health Authority and is applying a similar design used for global pivotal phase II study (BRF113928).


This is a single arm, open label, multicenter phase II study evaluating the efficacy and safety of dabrafenib in combination with trametinib in Chinese participant with BRAF V600E mutation positive AJCC v8 stage IV Non-Small Cell Lung Cancer.

Participants with stage IV BRAF V600E mutant Non-Small Cell Lung Cancer confirmed by local qualified assay (approved by China health authorities) will be enrolled in this study. Central confirmation testing for BRAF V600E will be performed. This study will enroll

  1. who have not received any prior systemic anti-cancer therapy for metastatic disease (i.e. dabrafenib/trametinib will be the 1st line treatment for metastatic disease)
  2. who have relapsed or progressed on at least one prior platinum based chemotherapy prior to enrollment but cannot have received more than 3 prior systemic therapies for metastatic disease (i.e. dabrafenib/trametinib will be no less than second line treatment for metastatic disease).

All participants must not have been previously exposed to a BRAF or MEK inhibitor. Participants will receive the recommended dose of both drugs (dabrafenib 150 mg twice daily and trametinib 2 mg once daily).

The primary endpoint for the study is Overall Response Rate, as determined by central independent review, using Response Evaluation Criteria in Solid Tumors (RECIST v1.1).

Approximately 20 Chinese patients over 18 years old will be enrolled in this study and will receive dabrafenib (150 mg twice daily) and trametinib (2 mg once daily) combination therapy until disease progression by RECIST 1.1, unacceptable toxicity, start of a new antineoplastic therapy, pregnancy, withdrawal of consent, lost to follow-up, physician's decision, death, or if study is terminated by the sponsor. Doses of study treatment may be modified and/or interrupted for management of toxicities associated with study treatment.

Treatment beyond disease progression per RECIST is allowed if protocol specific criteria are met. The tumor assessments will be performed every 6 weeks until Week 36, and every 12 weeks thereafter until disease progression, death, lost of follow-up, or withdrawal of consent. Survival and new anti-cancer therapy follow-up will continue until study completion.

Condition Carcinoma, Non-Small-Cell Lung
Treatment Dabrafenib, Trametinib
Clinical Study IdentifierNCT04452877
SponsorNovartis Pharmaceuticals
Last Modified on27 October 2022


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Inclusion Criteria

Histologically or cytologically confirmed diagnosis of Stage IV NSCLC (according to AJCC 8th edition) that is BRAF V600E mutation-positive by local test result from a qualified assay (NMPA and/or MOH-approved)
Previously treated or untreated for metastatic NSCLC
Participants previously treated should have received no more than 3 prior systemic therapies for metastatic disease, including one prior platinum based chemotherapy, and should have documented disease progression on a prior treatment regimen (i.e. RECIST 1.1)
Participants who have received prior therapy with checkpoint inhibitor therapy (i.e. anti-PD-1/PD-L1) must have had objective evidence of disease progression (i.e. RECIST v1.1) while on or after this therapy prior to enrollment
Participants with EGFR or ALK mutation who have previously received therapy with EGFR or ALK inhibitor(s) respectively are eligible
Measurable disease per RECIST v1.1
Anticipated life expectancy of at least 3 months
ECOG performance status ≤ 2
Adequate bone marrow and organ function as defined by the following laboratory values without continuous supportive treatment (such as blood transfusion, coagulation factors and/or platelet infusion, or red/white blood cell growth factor administration) as assessed by local laboratory for eligibility: Hemoglobin ≥ 9 g/dL; Absolute neutrophil count ≥ 1.5 × 109/L; Platelets ≥ 100 × 109/L; PT/INR and PTT ≤ 1.5 x ULN; Serum creatinine < 1.5 mg/dL; Total bilirubin ≤ 1.5 × ULN (upper limit of normal) except for participantss with Gilbert's syndrome who may only be included if the total bilirubin is ≤ 3.0 × ULN or direct bilirubin ≤ 1.5 × ULN; AST and ALT ≤ 2.5 × ULN, except for participant with liver metastasis, who may only be included if AST/ALT ≤ 5.0 × ULN Albumin ≥ 2.5 g/dL
Left ventricular ejection fraction (LVEF) ≥ lower limit of institutional normal (LLN) as assessed by ECHO or MUGA scan

Exclusion Criteria

Participants with brain or leptomeningeal metastases are excluded if their these metastases are: symptomatic or treated but not clinically and radiographically stable 3 weeks after local therapy or asymptomatic and untreated but >1 cm in the longest dimension
Previous treatment with a BRAF inhibitor or a MEK inhibitor
All prior anti-cancer treatment-related toxicities must be Grade 2 or less according to the Common Terminology Criteria for Adverse Events version 4 (CTCAE version 4.03; NCI, 2009) at the time of enrollment
Prior anti-cancer treatment within the last 2 weeks, and prior treatment with immune checkpoint inhibitors within 4 weeks preceding the first dose of the study treatment
Current use of a prohibited medication
Known immediate or delayed hypersensitivity reaction or idiosyncrasy to drugs chemically related to the study treatments, their excipients, and/or dimethyl sulfoxide (DMSO)
Participants with known history for testing positive for Human Immunodeficiency Virus (HIV)
History of another malignancy <3 years prior to starting study treatment or any malignancy with confirmed activating RAS-mutation
Cardiac or cardiac repolarization abnormality
A history or current evidence/risk of retinal vein occlusion (RVO) or serous retinopathy
History or current interstitial lung disease or non-infectious pneumonitis
Any serious or unstable pre-existing medical conditions (aside from malignancy exceptions specified above), psychiatric disorders, or other conditions that, in the opinion of the investigator, could interfere with the participant's safety, obtaining informed consent, or compliance with study procedures
Pregnant or nursing (lactating) women
Sexually active males (including those that have had a vasectomy) must use a condom during intercourse and should not father a child during this period. The amount of time a patient must use a condom for 16 weeks post treatment discontinuation
Participants with active Hepatitis B infection (HbsAg positive)
Participants with positive test for hepatitis C ribonucleic acid (HCV RNA)
Concurrent participation in other clinical trials using experimental therapies
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