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Clinical Stage IV Cutaneous Melanoma AJCC v8Phase 1NCT05388877

E6201 and Dabrafenib for the Treatment of Central Nervous System Metastases From BRAF V600 Mutated Metastatic Melanoma

A Phase 1 study testing Dabrafenib, MEK-1/MEKK-1 Inhibitor E6201 and Biospecimen Collection in people with Clinical Stage IV Cutaneous Melanoma AJCC v8 and Metastatic Malignant Neoplasm in the Brain, run by Mayo Clinic at 3 sites in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

This phase I tests the safety, side effects, and best dose of E6201 in combination with dabrafenib in treating patients with BRAF V600 mutated melanoma that has spread to the central nervous system (central nervous system metastases). Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Dabrafenib, MEK-1/MEKK-1 Inhibitor E6201 and Biospecimen Collection
Could I receive a placebo?
No, everyone receives an active treatment
How many people
13 participants
Where
3 sitesUnited States
Study dates
20 Oct 2022to 2 Jun 2025
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Age >= 18 years
  • Histologically or cytologically confirmed stage IV metastatic BRAF V600-mutated melanoma
  • Documented metastasis of the primary tumor to the CNS
  • BRAF-mutation melanoma tumor status will be established prior to entry based on previous BRAF-gene analysis reports from a Clinical Laboratory Improvement Act (CLIA) qualified laboratory. If a report is not available, the mutation analysis will be performed at screening on archival tissue
  • At least one brain metastasis, as assessed by magnetic resonance imaging (MRI) or computed tomography (CT) with contrast =< 3 weeks prior to registration and does not require immediate local intervention (surgery or radiosurgery)
  • Asymptomatic or symptomatic CNS metastasis
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  • Systemic, measurable metastatic melanoma disease is allowed; leptomeningeal disease is allowed.
  • Prior stereotactic radiosurgery and/or excision of brain metastases is allowed > 3 weeks before initiation of study treatment
  • Prior immunotherapy for adjuvant or metastatic disease is allowed provided there is documented progression of disease following treatment
  • Prior melanoma adjuvant BRAF/MEK inhibitor treatment is allowed if >= 12 months has elapsed between the end of therapy and initiation of study treatment
  • Able to swallow and retain oral medication with no clinically significant gastrointestinal abnormalities that may alter absorption, such as malabsorption syndrome or major resection of the stomach or bowels
  • Stable dose of corticosteroids for CNS metastasis is allowed if >= 7 days
  • Seizures due to CNS metastases must be controlled with stable anti-epileptic treatment for >= 14 days
  • Bisphosphonates and/or denosumab are allowed
  • Life expectancy >= 3 months
  • Eastern Cooperative Oncology Group (ECOG) performance status (PS) 0, 1 or 2
  • Hemoglobin (Hb) >= 9 g/dL without ongoing transfusional support (obtained =< 15 days prior to registration)
  • Absolute neutrophil count (ANC) >= 1.0 x 10^9 cells/L without ongoing transfusional support (obtained =< 15 days prior to registration)
  • Platelets >= 75 x 10^9 cells/L without ongoing transfusional support (obtained =< 15 days prior to registration)
  • Creatinine =< 1.5 x the upper limit of normal (ULN), or calculated creatinine clearance >= 50 mL/minute per the Cockcroft-Gault formula (obtained =< 15 days prior to registration)
  • Total bilirubin =< 2 times the upper limit of normal (ULN) unless due to Gilbert's disease (obtained =< 15 days prior to registration)
  • Alanine aminotransferase (ALT)/aspartate aminotransferase (AST) =< 2.5 times ULN, or < 5 times ULN for subjects with liver metastases (obtained =< 15 days prior to registration)
  • Negative serum pregnancy test done =< 14 days prior to registration, for persons of childbearing potential only, defined as a female who has not undergone a hysterectomy or who has not been naturally post-menopausal for at least 24 consecutive months (i.e., who has had menses any time in the preceding 24 consecutive months)
  • Willing to use contraception
  • Sexually active persons of childbearing potential (PCBP) and persons able to father a child must agree to use adequate methods to avoid pregnancy throughout the study and for 28 days after the completion of study treatment
  • Provide written informed consent
  • Willing to return to enrolling institution for follow-up (during the Active Monitoring Phase of the study)
  • Ability to complete Patient Medication Diaries by themselves or with assistance
  • Willingness to have institution procure previous BRAF-gene analysis report(s) from a CLIA qualified laboratory, or if a report is not available, willingness to have institution procure archived tumor sample to establish BRAF-mutational melanoma tumor status prior to study
  • Ability to swallow

Who cannot join

  • Receiving any other investigational agent which would be considered as a treatment for the primary neoplasm
  • Urgent need of treatment to prevent acute neurologic deterioration, including urgent neurosurgery or radiotherapy
  • Symptoms of uncontrolled intracranial pressure
  • Symptomatic or untreated spinal cord compression
  • Serious cardiac condition =< 6 months prior to registration, such as uncontrolled arrhythmia, myocardial infarction, unstable angina, or heart disease defined by the New York Heart Association (NYHA) class III or class IV
  • Failure to recover from acute, reversible effects of prior therapy regardless of interval since last treatment
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  • Uncontrolled intercurrent non-cardiac illness including, but not limited to:
  • Ongoing or active infection requiring IV antibiotic usage within the last week prior to study treatment
  • Any other conditions that would limit compliance with study requirements or confound the interpretation of study results
  • Immunocompromised patients and patients known to be human immunodeficiency virus (HIV) positive and currently receiving antiretroviral therapy
  • NOTE: Patients known to be HIV positive, but without clinical evidence of an immunocompromised state, are eligible for this trial
  • Any of the following, because this study involves an agent that has known genotoxic, mutagenic and teratogenic effects:
  • Pregnant persons
  • Nursing persons
  • Persons of childbearing potential who are unwilling to employ adequate contraception

Trial locations and contacts

3 sites in 1 country.

United States3 sites

  • Mayo Clinic in Florida

    Jacksonville, Florida, 32224-9980

  • Mayo Clinic in Rochester

    Rochester, Minnesota, 55905

  • Mayo Clinic in Arizona

    Scottsdale, Arizona, 85259

Other trials in United States

About this study

Official title: Phase 1 Study of E6201 Plus Dabrafenib for the Treatment of Central Nervous System (CNS) Metastases From BRAF V600-Mutated Metastatic Melanoma

This phase I tests the safety, side effects, and best dose of E6201 in combination with dabrafenib in treating patients with BRAF V600 mutated melanoma that has spread to the central nervous system (central nervous system metastases). E6201 may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Dabrafenib is used in patients whose cancer has a mutated (changed) form of a gene called BRAF. It is in a class of medications called kinase inhibitors. It works by blocking the action of an abnormal protein that signals tumor cells to multiply. This helps stop the spread of tumor cells. Giving E6201 and dabrafenib together may work better in treating patients with BRAF V600 mutated melanoma that has spread to the central nervous system than either drug alone.

Read the detailed description

PRIMARY OBJECTIVE:

  1. To determine the maximum tolerated dose of MEK-1/MEKK-1 inhibitor E6201 (E6201) in combination with dabrafenib in patients with central nervous system (CNS) metastases from BRAF V600- mutated metastatic melanoma. (Phase I) II. To assess the response rates treated at the maximum tolerated dose of E6201 in combination with dabrafenib in patients with central nervous system (CNS) metastases from BRAF V600- mutated metastatic melanoma. (maximum tolerated dose [MTD] + Expansion Cohort)

SECONDARY OBJECTIVES:

  1. To assess the time to first progression in subjects with CNS metastases due to metastatic melanoma with a BRAF V600 mutation treated with E6201 + dabrafenib.

II. To assess overall survival (OS) in subjects with CNS metastases due to metastatic melanoma with a BRAF V600 mutation treated with E6201 + dabrafenib.

III. To assess the adverse events profile of E6201 in combination with dabrafenib in subjects with CNS metastases due to metastatic melanoma with a BRAF V600 mutation treated with E6201 + dabrafenib.

CORRELATIVE RESEARCH OBJECTIVE:

  1. To assess the impact of BRAF mutational status (e.g., type, heterozygosity or homozygosity) in archival tissue with clinical outcome.

OUTLINE: This is a dose-escalation study of MEK-1/MEKK-1 inhibitor E6201 followed by a dose-expansion study.

Patients receive MEK-1/MEKK-1 inhibitor E6201 intravenously (IV) over 2 hours on days 1, 4, 8, 11, 15, and 18, and dabrafenib orally (PO) twice daily (BID) on days 1-28. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity. Patients also undergo blood sample collection, computed tomography (CT) or magnetic resonance imaging (MRI) throughout study.

After completion of study treatment, patients are followed up every 6 months for up to 2 years from time of registration.

Being tested
Dabrafenib, MEK-1/MEKK-1 Inhibitor E6201, Biospecimen Collection, Computed Tomography, Magnetic Resonance Imaging
Medical subject headings
Brain Neoplasms, Melanoma

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • DabrafenibDrug

    Also called BRAF Inhibitor GSK2118436, GSK-2118436, GSK-2118436A, GSK2118436

    Given PO

  • MEK-1/MEKK-1 Inhibitor E6201Drug

    Also called E-6201, E6201

    Given IV

  • Biospecimen CollectionProcedure or surgery

    Also called Biological Sample Collection, Biospecimen Collected, Specimen Collection

    Undergo blood sample collection

  • Computed TomographyProcedure or surgery

    Also called CAT, CAT Scan, Computed Axial Tomography, Computerized Axial Tomography

    Undergo CT

  • Magnetic Resonance ImagingProcedure or surgery

    Also called Magnetic Resonance, Magnetic Resonance Imaging (MRI), Magnetic resonance imaging (procedure), Magnetic Resonance Imaging Scan

    Undergo MRI

Study groups in NCT05388877
Study groupRoleWhat they receive
Treatment (E6201, dabrafenib)ExperimentalPatients receive MEK-1/MEKK-1 inhibitor E6201 IV over 2 hours on days 1, 4, 8, 11, 15, and 18, and dabrafenib PO BID on days 1-28. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity.
Receives: Drug: Dabrafenib; Drug: MEK-1/MEKK-1 Inhibitor E6201; Procedure: Biospecimen Collection; Procedure: Computed Tomography; Procedure: Magnetic Resonance Imaging

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Maximum tolerated dose

    Measured: Up to end of cycle 1 (1 cycle = 28 days)

Secondary outcomes (5)

  1. Overall intracranial response rate

    Defined as the number of patients who have achieved CR or PR per Response Assessment in Neuro-oncology (RANO) for brain metastases criteria during treatment with E6201 plus dabrafenib divided by total number of evaluable patients. Responses will be summarized by simple descriptive summary statistics delineating complete and partial responses as well as stable and progressive disease in this patient population.

    Measured: Up to 2 years

  2. Overall extracranial response rate

    Defined by Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1. Systemic response by RECIST 1.1 criteria for extracranial disease will be estimated using systemic response rate (SRR) - where SRR is defined as the number of evaluable patients achieving a response (partial response or complete response per RECIST 1.1) during treatment with study therapy divided by the total number of evaluable patients. Responses will be summarized by simple descriptive summary statistics delineating complete and partial responses as well as stable and progressive disease in this patient population.

    Measured: Up to 2 years

  3. Incidence of adverse events

    The maximum grade for each type of adverse event will be recorded for each patient, and frequency tables will be reviewed to determine patterns. Additionally, the relationship of the adverse event(s) to the study treatment will be taken into consideration.

    Measured: Up to 2 years

  4. Time to first progression

    Will be summarized descriptively.

    Measured: Up to 2 years

  5. Overall survival

    Will be summarized descriptively.

    Measured: Up to 2 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted24 May 2022
  2. Study start20 Oct 2022
  3. Primary completion19 Nov 2024
  4. Study completion2 Jun 2025

Why it stopped: Financial issues

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
13 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05388877
Sponsor's protocol ID
MC210703
Other IDs
NCI-2022-04133, 22-000531
Status last verified
Aug 2025
First submitted
19 May 2022
Last updated
19 Aug 2025
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Dabrafenib, MEK-1/MEKK-1 Inhibitor E6201 and Biospecimen Collection in people with Clinical Stage IV Cutaneous Melanoma AJCC v8 and Metastatic Malignant Neoplasm in the Brain, run by Mayo Clinic at 3 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 30 inclusion and 15 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 19 Aug 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study was stopped early (reason given: Financial issues). Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Maximum tolerated dose (time frame: Up to end of cycle 1 (1 cycle = 28 days)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05388877.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 19 Aug 2025.

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