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Trametinib in Treating Patients With Advanced Melanoma With BRAF Non-V600 Mutations

A Phase II Open-Label, Two-Arm Study of the MEK Inhibitor, Trametinib, to Investigate the Safety and Anti-Cancer Activity in Subjects With Melanoma With BRAF Non-V600 Mutations

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02296112
Enrollment
9
Registered
2014-11-20
Start date
2015-01-31
Completion date
2021-04-16
Last updated
2021-05-28

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

Conditions

Recurrent Melanoma, Stage IIIB Melanoma, Stage IIIC Melanoma, Stage IV Melanoma

Brief summary

This phase II trial studies trametinib in treating patients with melanoma with v-Raf murine sarcoma viral oncogene homolog B (BRAF) non-V600 mutations that has spread to other places in the body. Trametinib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth.

Detailed description

PRIMARY OBJECTIVES: I. To determine the clinical efficacy of trametinib in advanced BRAF nonV600mutation (MUT) melanoma (high activity group). SECONDARY OBJECTIVES: I. To characterize the safety of trametinib. II. To evaluate the progression-free survival (PFS) and overall survival (OS) of trametinib in advanced BRAF nonV600MUT melanoma. TERTIARY OBJECTIVES: I. To determine the clinical efficacy of trametinib in advanced BRAF nonV600MUT melanoma (low activity/unknown group). II. Identify mechanisms of resistance to trametinib in this patient population. OUTLINE: Patients receive trametinib orally (PO) once daily (QD) on days 1-28. Courses repeat every 28 days in the absence of disease progression or unacceptable toxicity. After completion of study treatment, patients are followed up for 28 days.

Interventions

DRUGtrametinib

Given PO

OTHERlaboratory biomarker analysis

Correlative studies

OTHERpharmacological study

Correlative studies

Sponsors

National Cancer Institute (NCI)
CollaboratorNIH
National Comprehensive Cancer Network
CollaboratorNETWORK
Vanderbilt-Ingram Cancer Center
Lead SponsorOTHER

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

* Signed written informed consent * Histologically or cytologically confirmed diagnosis of melanoma * BRAF mutation in loci other than V600 (BRAF nonV600 MUT) or BRAF fusion detected by genetic testing of the primary tumor or regional/distant metastasis * Subjects must provide either a fresh or archived tumor sample for correlative study analyses * For subjects with melanoma, archived or freshly biopsied tumor tissue (preferred) must be obtained prior to enrollment. Tissue shipment tracking information should be provided before administration of study treatment is initiated. However, if shipping will be delayed and tissue shipment tracking information is unavailable, study drug may be administered prior to tissue receipt pending discussion with principal investigator. * Measurable disease (i.e., present with at least one measurable lesion per Response Evaluation Criteria In Solid Tumors \[RECIST\], version 1.1) * All prior anti-cancer treatment-related toxicities (except alopecia and laboratory values) must be =\< grade 1 according to the Common Terminology Criteria for Adverse Events version 4 (CTCAE version 4.0) at the time of randomization. Subjects with endocrinopathies (e.g. hypopituitarism, hypothyroidism, hypoadrenalism) caused by immune therapies currently on adequate hormone replacement WILL be permitted. * 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 * Women of childbearing potential must have a negative serum pregnancy test within 14 days prior to randomization and agree to use effective contraception * Men with a female partner of childbearing potential must have either had a prior vasectomy or agree to use effective contraception * An Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1 * Absolute neutrophil count (ANC) \> or = 1.0 × 10\^9/L * Hemoglobin \> or = 9 g/dL * Platelet count \> or = 75 x 10\^9/L * Prothrombin time (PT)/international normalized ratio (INR)\* = or \< 1.3 x upper limit of normal (ULN) * Subjects receiving anticoagulation treatment may be allowed to participate with INR established within the therapeutic range prior to randomization; PT and partial thromboplastin time (PTT) \> 1.5 x ULN are permitted in these subjects * PTT =or \< 1.3 x ULN * Albumin \>or = 2.5 g/dL * Total bilirubin = or \< 1.5 x ULN * Alanine aminotransferase (ALT) = or \< 2.5 x ULN * Creatinine = or \< 1.5 ULN or calculated creatinine clearance\* \> or = 50 mL/min * Calculate creatinine clearance using standard Cockcroft-Gault formula; creatinine clearance must be \> or = 50 mL/min to be eligible * Left ventricular ejection fraction (LVEF) \> or = lower limit of normal (LLN) by echocardiogram (ECHO)

Exclusion criteria

* No prior therapy with inhibitors affecting the mitogen-activated protein kinase (MAPK) pathways at any level (BRAF, mitogen-activated protein \[MAP\]/extracellular signal-related kinase \[ERK\] kinase \[MEK\], neuroblastoma RAS viral \[v-ras\] oncogene homolog \[NRAS\], ERK inhibitors) for unresectable stage IIIC or stage IV (metastatic) melanoma; no limit to other therapies (immunotherapy or chemotherapy); prior systemic treatment in the adjuvant setting is allowed; (note: ipilimumab treatment must end at least 8 weeks prior to study day 1) * BRAFV600 mutation positive * NRAS codon 12, 13, or 61 mutation * Any major surgery, extensive radiotherapy, chemotherapy with delayed toxicity, biologic therapy, or immunotherapy within 21 days prior to study day 1, or daily or weekly chemotherapy without the potential for delayed toxicity within 14 days prior to study day 1 * Taken an investigational drug within 28 days or 5 half-lives (minimum 14 days), whichever is shorter, prior to study day 1 * Current use of a prohibited medication as described * History of another malignancy * Exception: Subjects who have been disease-free for 3 years, or subjects with a history of completely resected, non-melanoma skin cancer, or subjects with indolent second malignancies are eligible. T1a melanoma and melanoma in situ are permitted. Consult Medical Monitor if unsure whether second malignancies meet requirements specified above. * Any serious or unstable pre-existing medical conditions (aside from malignancy exceptions specified above), psychiatric disorders, or other conditions that could interfere with the subject's safety, obtaining informed consent, or compliance with study procedures * Known human immunodeficiency virus (HIV), hepatitis B virus (HBV), or hepatitis C virus (HCV) infection (subjects with laboratory evidence of cleared HBV and HCV infection will be permitted) * History of leptomeningeal disease or spinal cord compression secondary to metastasis * Brain metastasis, unless previously treated with surgery or stereotactic radiosurgery and the disease has been confirmed stable (i.e., no increase in lesion size) for at least 6 weeks with two consecutive magnetic resonance imaging (MRI) scans using contrast prior to study day 1; enzyme inducing anticonvulsants are not allowed while patients are on study treatment * A history or evidence of cardiovascular risk including any of the following: * A QT interval corrected for heart rate using the Bazett's formula (QTc) \> or = 480 msec * A history or evidence of current clinically significant uncontrolled arrhythmias * Exception: subjects with atrial fibrillation controlled for \> 30 days prior to study day 1 * History of acute coronary syndromes (including myocardial infarction and unstable angina), coronary angioplasty, or stenting within 6 months prior to study day 1 * A history or evidence of current \>= class I congestive heart failure as defined by the New York Heart Association (NYHA) guidelines * Treatment refractory hypertension defined as a blood pressure of systolic \> 140 mmHg and/or diastolic \> 90 mm Hg which cannot be controlled by anti-hypertensive therapy * Patients with intra-cardiac defibrillators or permanent pacemakers * Known cardiac metastases * A history or current evidence of retinal vein occlusion (RVO) including: * History of RVO or * Visible retinal pathology as assessed by ophthalmic examination that is considered a risk factor for RVO such as: * Evidence of new optic disc cupping * Evidence of new visual field defects * Intraocular pressure \> 21 mmHg as measured by tonography * Known immediate or delayed hypersensitivity reaction or idiosyncrasy to drugs chemically related to the study treatments, their excipients, and/or dimethyl sulfoxide (DMSO) * History of interstitial lung disease or pneumonitis * Females who are pregnant or nursing

Design outcomes

Primary

MeasureTime frameDescription
Overall Response Rate in High Affinity GroupUp to 12 monthsPer RECIST criteria version (v.) 1.1: measurable lesions: complete response (CR) disappearance of target lesions, partial response (PR) \> 30% decrease in the sum of the longest diameter (LD) of target lesions, progressive disease (PD) \> 20% increase in the sum of the LD of target lesions or appearance of new lesions, stable disease (SD) neither sufficient decrease nor increase of the sum of smallest sum of the LD of target lesions.

Secondary

MeasureTime frameDescription
Duration of Response in High Affinity GroupDate of first partial or complete response as defined by RECIST 1.1 criteria to date of progression up to 3 yearsEstimated probable duration from date of objective response to date of disease progression, using the Kaplan-Meier method with censoring (see analysis population description for additional details). Disease progression is defined under RECIST v1.1 as \>= 20% increase in sum of longest diameters of target lesions, unequivocal progression of non-target lesions, or appearance of new lesions.
Clinical Benefit (Complete Response [CR] + Partial Response [PR] + Stable Disease [SD]) Per RECIST v. 1.1 in High Affinity GroupUp to 12 monthsPer RECIST criteria v. 1.1: measurable lesions: complete response (CR) disappearance of target lesions, partial response (PR) \> 30% decrease in the sum of the longest diameter (LD) of target lesions, progressive disease (PD) \> 20% increase in the sum of the LD of target lesions or appearance of new lesions, stable disease (SD) neither sufficient decrease nor increase of the sum of smallest sum of the LD of target lesions.
Overall SurvivalOn-study date to date of death from any cause (assessed up to 3 years)Estimated probable duration of life from on-study date to date of death from any cause, using the Kaplan-Meier method with censoring.
Number of Patients With Each Worst-Grade ToxicityOn-study date to 30 days following final dose of study drug, up to 3 yearsSafety profile shown by count of patients according to the worst-grade toxicity experienced by each, where worst-grade toxicity is per National Cancer Institute (NCI) common toxicity criteria: grade 1, mild; grade 2, moderate; grade 3, severe; grade 4, life-threatening; grade 5, death.
Progression-Free Survival All PatientsOn-study date to lesser of date of progression or date of death from any cause (assessed up to 3 years)Progression of disease as defined by RECIST 1.1 criteria will be reported. Time from on treatment to progression or death (whichever comes first). For those did not progress or die, they were censored at the last follow up or off study date(if they do not have a last date of follow up).
Overall Response Rate in Low Affinity GroupUp to 12 monthsPer RECIST criteria v. 1.1: measurable lesions: complete response (CR) disappearance of target lesions, partial response (PR) \> 30% decrease in the sum of the longest diameter (LD) of target lesions, progressive disease (PD) \> 20% increase in the sum of the LD of target lesions or appearance of new lesions, stable disease (SD) neither sufficient decrease nor increase of the sum of smallest sum of the LD of target lesions.

Other

MeasureTime frameDescription
Clinical Benefit (CR + PR + SD) Per RECIST v. 1.1 in Low Affinity GroupUp to 12 monthsPer RECIST criteria v. 1.1: measurable lesions: complete response (CR) disappearance of target lesions, partial response (PR) \> 30% decrease in the sum of the longest diameter (LD) of target lesions, progressive disease (PD) \> 20% increase in the sum of the LD of target lesions or appearance of new lesions, stable disease (SD) neither sufficient decrease nor increase of the sum of smallest sum of the LD of target lesions.
Molecular Characteristics of Patient Samples, Including Archival SamplesUp to 3 yearsMolecular characterization of tumor tissue will be performed to identify markers that correlate with clinical responsiveness to treatment with trametinib. Optional on-treatment biopsies will be used to evaluate pharmacodynamic and other molecular effects of treatment, which will be compared to clinical outcomes. Optional post-progression samples will be analyzed to identify mechanisms of resistance.
Duration of Response in Low Affinity GroupUp to 3 yearsEstimated probable duration from date of first partial or complete response as defined by RECIST 1.1 criteria to date of disease progression, using the Kaplan-Meier method with censoring (see analysis population description for additional details). Disease progression is defined under RECIST v1.1 as \>= 20% increase in sum of longest diameters of target lesions, unequivocal progression of non-target lesions, or appearance of new lesions.

Countries

United States

Participant flow

Participants by arm

ArmCount
Treatment (Trametinib)
Patients receive trametinib PO QD on days 1-28. Courses repeat every 28 days in the absence of disease progression or unacceptable toxicity. trametinib: Given PO laboratory biomarker analysis: Correlative studies pharmacological study: Correlative studies
9
Total9

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyBegan an alternate therapy1
Overall StudyDisease progression7
Overall StudyToxicity1

Baseline characteristics

CharacteristicTreatment (Trametinib)
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
2 Participants
Age, Categorical
Between 18 and 65 years
7 Participants
Age, Continuous52.111111111111 Years
STANDARD_DEVIATION 5.546381313885
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
7 Participants
Region of Enrollment
United States
9 participants
Sex: Female, Male
Female
3 Participants
Sex: Female, Male
Male
6 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
3 / 9
other
Total, other adverse events
9 / 9
serious
Total, serious adverse events
4 / 9

Outcome results

Primary

Overall Response Rate in High Affinity Group

Per RECIST criteria version (v.) 1.1: measurable lesions: complete response (CR) disappearance of target lesions, partial response (PR) \> 30% decrease in the sum of the longest diameter (LD) of target lesions, progressive disease (PD) \> 20% increase in the sum of the LD of target lesions or appearance of new lesions, stable disease (SD) neither sufficient decrease nor increase of the sum of smallest sum of the LD of target lesions.

Time frame: Up to 12 months

Population: patients with advanced melanoma with High Activity BRAF Mutations or Fusion Events.

ArmMeasureValue (MEAN)
Treatment (Trametinib) High ActivityOverall Response Rate in High Affinity Group0.5 Proportion of participants
Secondary

Clinical Benefit (Complete Response [CR] + Partial Response [PR] + Stable Disease [SD]) Per RECIST v. 1.1 in High Affinity Group

Per RECIST criteria v. 1.1: measurable lesions: complete response (CR) disappearance of target lesions, partial response (PR) \> 30% decrease in the sum of the longest diameter (LD) of target lesions, progressive disease (PD) \> 20% increase in the sum of the LD of target lesions or appearance of new lesions, stable disease (SD) neither sufficient decrease nor increase of the sum of smallest sum of the LD of target lesions.

Time frame: Up to 12 months

Population: patients with advanced melanoma with High Activity BRAF Mutations or Fusion Events.

ArmMeasureValue (MEAN)
Treatment (Trametinib) High ActivityClinical Benefit (Complete Response [CR] + Partial Response [PR] + Stable Disease [SD]) Per RECIST v. 1.1 in High Affinity Group0.5 Proportion of participants
Secondary

Duration of Response in High Affinity Group

Estimated probable duration from date of objective response to date of disease progression, using the Kaplan-Meier method with censoring (see analysis population description for additional details). Disease progression is defined under RECIST v1.1 as \>= 20% increase in sum of longest diameters of target lesions, unequivocal progression of non-target lesions, or appearance of new lesions.

Time frame: Date of first partial or complete response as defined by RECIST 1.1 criteria to date of progression up to 3 years

Population: Patients with advanced melanoma with BRAF high activity

ArmMeasureValue (MEDIAN)
Treatment (Trametinib) High ActivityDuration of Response in High Affinity GroupNA months
Secondary

Number of Patients With Each Worst-Grade Toxicity

Safety profile shown by count of patients according to the worst-grade toxicity experienced by each, where worst-grade toxicity is per National Cancer Institute (NCI) common toxicity criteria: grade 1, mild; grade 2, moderate; grade 3, severe; grade 4, life-threatening; grade 5, death.

Time frame: On-study date to 30 days following final dose of study drug, up to 3 years

Population: All patients on study.

ArmMeasureValue (NUMBER)
Treatment (Trametinib) High ActivityNumber of Patients With Each Worst-Grade Toxicity2 participants
Worst Grade 2Number of Patients With Each Worst-Grade Toxicity3 participants
Worst Grade 3Number of Patients With Each Worst-Grade Toxicity3 participants
Secondary

Overall Response Rate in Low Affinity Group

Per RECIST criteria v. 1.1: measurable lesions: complete response (CR) disappearance of target lesions, partial response (PR) \> 30% decrease in the sum of the longest diameter (LD) of target lesions, progressive disease (PD) \> 20% increase in the sum of the LD of target lesions or appearance of new lesions, stable disease (SD) neither sufficient decrease nor increase of the sum of smallest sum of the LD of target lesions.

Time frame: Up to 12 months

Population: Patients on study with low activity

ArmMeasureValue (MEAN)
Treatment (Trametinib) High ActivityOverall Response Rate in Low Affinity Group0.14 proportion
Secondary

Overall Survival

Estimated probable duration of life from on-study date to date of death from any cause, using the Kaplan-Meier method with censoring.

Time frame: On-study date to date of death from any cause (assessed up to 3 years)

Population: All patients on study

ArmMeasureValue (MEDIAN)
Treatment (Trametinib) High ActivityOverall Survival27.6 months
Secondary

Progression-Free Survival All Patients

Progression of disease as defined by RECIST 1.1 criteria will be reported. Time from on treatment to progression or death (whichever comes first). For those did not progress or die, they were censored at the last follow up or off study date(if they do not have a last date of follow up).

Time frame: On-study date to lesser of date of progression or date of death from any cause (assessed up to 3 years)

Population: Patients with advanced melannoma with BRAF non-V600 mutations and received treatment

ArmMeasureValue (MEDIAN)
Treatment (Trametinib) High ActivityProgression-Free Survival All Patients7.5 months
Other Pre-specified

Clinical Benefit (CR + PR + SD) Per RECIST v. 1.1 in Low Affinity Group

Per RECIST criteria v. 1.1: measurable lesions: complete response (CR) disappearance of target lesions, partial response (PR) \> 30% decrease in the sum of the longest diameter (LD) of target lesions, progressive disease (PD) \> 20% increase in the sum of the LD of target lesions or appearance of new lesions, stable disease (SD) neither sufficient decrease nor increase of the sum of smallest sum of the LD of target lesions.

Time frame: Up to 12 months

Other Pre-specified

Duration of Response in Low Affinity Group

Estimated probable duration from date of first partial or complete response as defined by RECIST 1.1 criteria to date of disease progression, using the Kaplan-Meier method with censoring (see analysis population description for additional details). Disease progression is defined under RECIST v1.1 as \>= 20% increase in sum of longest diameters of target lesions, unequivocal progression of non-target lesions, or appearance of new lesions.

Time frame: Up to 3 years

Population: Patients on study with low activity

ArmMeasureValue (MEDIAN)
Treatment (Trametinib) High ActivityDuration of Response in Low Affinity GroupNA months
Other Pre-specified

Molecular Characteristics of Patient Samples, Including Archival Samples

Molecular characterization of tumor tissue will be performed to identify markers that correlate with clinical responsiveness to treatment with trametinib. Optional on-treatment biopsies will be used to evaluate pharmacodynamic and other molecular effects of treatment, which will be compared to clinical outcomes. Optional post-progression samples will be analyzed to identify mechanisms of resistance.

Time frame: Up to 3 years

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