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Testing Trametinib as a Potential Targeted Treatment in Cancers With BRAF Genetic Changes (MATCH-Subprotocol R)

MATCH Treatment Subprotocol R: Phase II Study of Trametinib in Patients With BRAF Fusions, or With NonV600E, Non-V600K BRAF Mutations

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04439279
Enrollment
35
Registered
2020-06-19
Start date
2015-08-12
Completion date
2026-03-19
Last updated
2025-11-19

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Advanced Lymphoma, Advanced Malignant Solid Neoplasm, Hematopoietic and Lymphoid Cell Neoplasm, Refractory Lymphoma, Refractory Malignant Solid Neoplasm, Refractory Multiple Myeloma

Brief summary

This phase II MATCH treatment trial identifies the effects of trametinib in patients with cancer having genetic changes called BRAF mutations and fusions. Trametinib may block proteins called MEK1 and MEK2, which may be needed for growth of cancer cells that express BRAF mutations. Researchers hope to learn if giving trametinib will shrink this type of cancer or stop its growth.

Detailed description

PRIMARY OBJECTIVE: I. To evaluate the proportion of patients with objective response (OR) to targeted study agent(s) in patients with advanced refractory cancers/lymphomas/multiple myeloma. SECONDARY OBJECTIVES: I. To evaluate the proportion of patients alive and progression free at 6 months of treatment with targeted study agent in patients with advanced refractory cancers/lymphomas/multiple myeloma. II. To evaluate time until death or disease progression. III. To identify potential predictive biomarkers beyond the genomic alteration by which treatment is assigned or resistance mechanisms using additional genomic, ribonucleic acid (RNA), protein and imaging-based assessment platforms. IV. To assess whether radiomic phenotypes obtained from pre-treatment imaging and changes from pre- through post-therapy imaging can predict objective response and progression free survival and to evaluate the association between pre-treatment radiomic phenotypes and targeted gene mutation patterns of tumor biopsy specimens. OUTLINE: Patients receive trametinib dimethyl sulfoxide (trametinib) orally (PO) once daily (QD) on days 1-28 of each cycle. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity. After completion of study treatment, patients are followed up every 3 months if less than 2 years from study entry, and then every 6 months for year 3 from study entry.

Interventions

Sponsors

National Cancer Institute (NCI)
Lead SponsorNIH

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients must have met applicable eligibility criteria in the Master MATCH Protocol prior to registration to treatment subprotocol * Patients must have a BRAF non-V600 mutation or BRAF fusion, or another aberration, as identified via the MATCH Master Protocol * Patients must have an electrocardiogram (ECG) within 8 weeks prior to treatment assignment and must have NONE of the following cardiac criteria: * Clinically important abnormalities in rhythm, conduction or morphology of resting ECG (e.g. complete left bundle branch block, third degree heart block) * 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 * Patients must have an echocardiogram (ECHO) or a nuclear study (multigated acquisition scan \[MUGA\] or First Pass) within 4 weeks prior to registration to treatment and must not have a left ventricular ejection fraction (LVEF) \< the institutional lower limit of normal (LLN). If the LLN is not defined at a site, the LVEF must be \> 50% for the patient to be eligible * Patients who previously received monoclonal antibody therapy (e.g. ipilimumab, nivolumab, pembrolizumab and others) must have stopped the prior therapy for 8 or more weeks before starting on trametinib

Exclusion criteria

* Patients with a history of interstitial lung disease or pneumonitis are excluded * Patients must not have known hypersensitivity to trametinib or compounds of similar chemical or biologic composition or to dimethyl sulfoxide (DMSO) * Patients must not have a history or current evidence/risk of retinal vein occlusion (RVO). An eye exam is required at baseline * Patients who previously received MEK inhibitors (including, but not limited to, trametinib, binimetinib, cobimetinib, selumetinib, RO4987655 (CH4987655), GDC-0623 and pimasertib) will be excluded

Design outcomes

Primary

MeasureTime frameDescription
Overall Response Rate (ORR)assessed at baseline, then every 2 cycles until disease progression, up to 3 years post registrationOverall response rate was defined as the proportion of patients with best overall response of complete response (CR) or partial response (PR) among all eligible and treated patients. Best overall response was evaluated using the Response Evaluation Criteria in Solid Tumors version 1.1, the Cheson (2014) criteria for lymphoma patients, and the Response Assessment in Neuro-Oncology criteria for glioblastoma patients. The 90% two-sided binomial exact confidence interval was calculated for ORR.

Secondary

MeasureTime frameDescription
6-month Progression-free Survival (PFS) Rateassessed at baseline, then every 2 cycles until disease progression, up to 3 years post registrationPFS was defined as time from treatment start date to date of disease progression or death from any causes, whichever occurred first. The 6-month PFS rate was estimated using the Kaplan-Meier method which can provide a point estimate for any specific time point. Disease progression was evaluated using the Response Evaluation Criteria in Solid Tumors version 1.1, the Cheson (2014) criteria for lymphoma patients, and the Response Assessment in Neuro-Oncology criteria for glioblastoma patients.
Progression-free Survivalassessed at baseline, then every 2 cycles until disease progression, up to 3 years post registrationPFS was defined as time from treatment start date to date of disease progression or death from any causes, whichever occurred first. Median PFS was estimated using the Kaplan-Meier method. Disease progression was evaluated using the Response Evaluation Criteria in Solid Tumors version 1.1, the Cheson (2014) criteria for lymphoma patients, and the Response Assessment in Neuro-Oncology criteria for glioblastoma patients.

Countries

United States

Participant flow

Recruitment details

Subprotocol R was activated on August 12, 2015. A total of 50 patients were assigned to this arm after screening, 48 from screening cohort and 2 from outside assay. Of the 50 patients, 35 patients were enrolled to arm R between December 4, 2015 and August 17, 2017.

Pre-assignment details

To be assigned to a specific MATCH subprotocol, patients needed to submit a tumor biopsy for molecular characterization and those with molecular variants addressed by treatments included in the trial entered corresponding MATCH subprotocol. For the subprotocol R, patients had to have BRAF fusion or Non-V600E, Non-V600K mutations.

Participants by arm

ArmCount
Subprotocol R
Patients receive trametinib dimethyl sulfoxide PO QD on days 1-28 of each cycle. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity.
33
Total33

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyAdverse Event7
Overall StudyComplicating disease3
Overall StudyDeath4
Overall StudyDisease progression17
Overall StudyIneligible1
Overall StudyTreatment still ongoing1
Overall StudyWithdrawal by Subject2

Baseline characteristics

CharacteristicSubprotocol R
Age, Continuous65 years
Ethnicity (NIH/OMB)
Hispanic or Latino
2 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
29 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
2 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
0 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
2 Participants
Race (NIH/OMB)
White
31 Participants
Sex: Female, Male
Female
19 Participants
Sex: Female, Male
Male
14 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
9 / 35
other
Total, other adverse events
29 / 34
serious
Total, serious adverse events
14 / 34

Outcome results

Primary

Overall Response Rate (ORR)

Overall response rate was defined as the proportion of patients with best overall response of complete response (CR) or partial response (PR) among all eligible and treated patients. Best overall response was evaluated using the Response Evaluation Criteria in Solid Tumors version 1.1, the Cheson (2014) criteria for lymphoma patients, and the Response Assessment in Neuro-Oncology criteria for glioblastoma patients. The 90% two-sided binomial exact confidence interval was calculated for ORR.

Time frame: assessed at baseline, then every 2 cycles until disease progression, up to 3 years post registration

Population: eligible and treated patients

ArmMeasureValue (NUMBER)
Subprotocol ROverall Response Rate (ORR)3 percentage of participants
Secondary

6-month Progression-free Survival (PFS) Rate

PFS was defined as time from treatment start date to date of disease progression or death from any causes, whichever occurred first. The 6-month PFS rate was estimated using the Kaplan-Meier method which can provide a point estimate for any specific time point. Disease progression was evaluated using the Response Evaluation Criteria in Solid Tumors version 1.1, the Cheson (2014) criteria for lymphoma patients, and the Response Assessment in Neuro-Oncology criteria for glioblastoma patients.

Time frame: assessed at baseline, then every 2 cycles until disease progression, up to 3 years post registration

Population: eligible and treated patients

ArmMeasureValue (NUMBER)
Subprotocol R6-month Progression-free Survival (PFS) Rate20 percentage of participants
Secondary

Progression-free Survival

PFS was defined as time from treatment start date to date of disease progression or death from any causes, whichever occurred first. Median PFS was estimated using the Kaplan-Meier method. Disease progression was evaluated using the Response Evaluation Criteria in Solid Tumors version 1.1, the Cheson (2014) criteria for lymphoma patients, and the Response Assessment in Neuro-Oncology criteria for glioblastoma patients.

Time frame: assessed at baseline, then every 2 cycles until disease progression, up to 3 years post registration

Population: eligible and treated patients

ArmMeasureValue (MEDIAN)
Subprotocol RProgression-free Survival1.8 months

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026