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A Phase 1b Open Label, Dose Escalation Study of PLX3397 in Combination With Vemurafenib in V600-mutated BRAF Melanoma

Primary Purpose

V600-mutated BRAF Unresectable Melanoma, V600-mutated BRAF Metastatic Melanoma, Stage III or Stage IV Metastatic Melanoma That Has Not Been Previously Treated With a Selective BRAF Inhibitor

Status
Terminated
Phase
Phase 1
Locations
International
Study Type
Interventional
Intervention
PLX3397
vemurafenib
Sponsored by
Daiichi Sankyo, Inc.
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for V600-mutated BRAF Unresectable Melanoma

Eligibility Criteria

18 Years - undefined (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

  • Male or female ≥18 years old.
  • Patients with histologically confirmed unresectable Stage III or Stage IV metastatic melanoma who have not been previously treated with a selective BRAF inhibitor.
  • Presence of a BRAF V600 mutation in the tumor tissue using the cobas BRAF mutation assay or comparable standard of care methodology.
  • Measurable disease per RECIST v. 1.1 criteria.
  • ECOG performance status 0 or 1.

Exclusion Criteria:

  • Radiation therapy within 14 days of C1D1.
  • Investigational drug use within 28 days of C1D1.
  • Patients with active CNS lesions are excluded (i.e., those with radiographically unstable, symptomatic lesions). However, patients treated with stereotactic therapy or surgery are eligible if they remain without evidence of disease progression in the brain for ≥3 weeks.

Sites / Locations

  • UCLA
  • University of Colorado, Denver
  • Vanderbilt University
  • Seattle Cancer Care Alliance
  • Institute Gustave Roussy
  • University Hospital Essen

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm 4

Arm Type

Experimental

Experimental

Experimental

Experimental

Arm Label

Dose extension cohort

Cohort 3

Cohort 2

Cohort 1

Arm Description

Patients will take PLX3397 and vemurafenib at the recommended phase 2 dose. This will be determined by the tolerability and safety of these drugs in the previous 3 cohorts.

Patients will take 1000mg/day of PLX3397 and 960mg BID of vemurafenib

Patients will take 800mg/day of PLX3397 and 960mg BID of vemurafenib

Patients will take 800mg/day of PLX3397 and 720mg BID of vemurafenib

Outcomes

Primary Outcome Measures

Percentage of Participants With Adverse Events Who Received PLX3397 in Combination With Vemurafenib in V600-mutated BRAF Melanoma

Secondary Outcome Measures

Full Information

First Posted
April 1, 2013
Last Updated
May 12, 2020
Sponsor
Daiichi Sankyo, Inc.
Collaborators
Plexxikon
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1. Study Identification

Unique Protocol Identification Number
NCT01826448
Brief Title
A Phase 1b Open Label, Dose Escalation Study of PLX3397 in Combination With Vemurafenib in V600-mutated BRAF Melanoma
Official Title
A Phase 1b Open Label, Dose Escalation Study to Assess Safety, Pharmacokinetics, Pharmacodynamics, and Antitumor Activity of PLX3397 in Combination With Vemurafenib in V600-mutated BRAF Unresectable or Metastatic Melanoma
Study Type
Interventional

2. Study Status

Record Verification Date
May 2020
Overall Recruitment Status
Terminated
Why Stopped
No activity was observed. BRAFi-naïve participants should have received triple combination treatment (including MEK inhibitor). Continuation was not justified.
Study Start Date
November 5, 2013 (Actual)
Primary Completion Date
September 22, 2014 (Actual)
Study Completion Date
September 22, 2014 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Daiichi Sankyo, Inc.
Collaborators
Plexxikon

4. Oversight

Data Monitoring Committee
No

5. Study Description

Brief Summary
The purpose of this research study is to test the safety of an investigational new drug called PLX3397 when used in combination with Vemurafenib (Zelboraf™) at different dose levels. Vemurafenib has been approved by the United States Food and Drug Administration (FDA)/European Medicines Agency (EMA) for the treatment of a specific category of unresectable or metastatic melanoma.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
V600-mutated BRAF Unresectable Melanoma, V600-mutated BRAF Metastatic Melanoma, Stage III or Stage IV Metastatic Melanoma That Has Not Been Previously Treated With a Selective BRAF Inhibitor

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 1
Interventional Study Model
Single Group Assignment
Masking
None (Open Label)
Allocation
Non-Randomized
Enrollment
13 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Dose extension cohort
Arm Type
Experimental
Arm Description
Patients will take PLX3397 and vemurafenib at the recommended phase 2 dose. This will be determined by the tolerability and safety of these drugs in the previous 3 cohorts.
Arm Title
Cohort 3
Arm Type
Experimental
Arm Description
Patients will take 1000mg/day of PLX3397 and 960mg BID of vemurafenib
Arm Title
Cohort 2
Arm Type
Experimental
Arm Description
Patients will take 800mg/day of PLX3397 and 960mg BID of vemurafenib
Arm Title
Cohort 1
Arm Type
Experimental
Arm Description
Patients will take 800mg/day of PLX3397 and 720mg BID of vemurafenib
Intervention Type
Drug
Intervention Name(s)
PLX3397
Intervention Type
Drug
Intervention Name(s)
vemurafenib
Other Intervention Name(s)
Zelboraf
Primary Outcome Measure Information:
Title
Percentage of Participants With Adverse Events Who Received PLX3397 in Combination With Vemurafenib in V600-mutated BRAF Melanoma
Time Frame
1 year

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: Male or female ≥18 years old. Patients with histologically confirmed unresectable Stage III or Stage IV metastatic melanoma who have not been previously treated with a selective BRAF inhibitor. Presence of a BRAF V600 mutation in the tumor tissue using the cobas BRAF mutation assay or comparable standard of care methodology. Measurable disease per RECIST v. 1.1 criteria. ECOG performance status 0 or 1. Exclusion Criteria: Radiation therapy within 14 days of C1D1. Investigational drug use within 28 days of C1D1. Patients with active CNS lesions are excluded (i.e., those with radiographically unstable, symptomatic lesions). However, patients treated with stereotactic therapy or surgery are eligible if they remain without evidence of disease progression in the brain for ≥3 weeks.
Facility Information:
Facility Name
UCLA
City
Los Angeles
State/Province
California
ZIP/Postal Code
90024
Country
United States
Facility Name
University of Colorado, Denver
City
Aurora
State/Province
Colorado
ZIP/Postal Code
80012
Country
United States
Facility Name
Vanderbilt University
City
Nashville
State/Province
Tennessee
ZIP/Postal Code
37232
Country
United States
Facility Name
Seattle Cancer Care Alliance
City
Seattle
State/Province
Washington
ZIP/Postal Code
98109
Country
United States
Facility Name
Institute Gustave Roussy
City
Paris
Country
France
Facility Name
University Hospital Essen
City
Essen
Country
Germany

12. IPD Sharing Statement

Plan to Share IPD
Yes
IPD Sharing Plan Description
De-identified individual participant data (IPD) and applicable supporting clinical trial documents may be available upon request at https://vivli.org/. In cases where clinical trial data and supporting documents are provided pursuant to our company policies and procedures, Daiichi Sankyo will continue to protect the privacy of our clinical trial participants. Details on data sharing criteria and the procedure for requesting access can be found at this web address: https://vivli.org/ourmember/daiichi-sankyo/
IPD Sharing Time Frame
Studies for which the medicine and indication have received European Union (EU) and United States (US), and/or Japan (JP) marketing approval on or after 01 January 2014 or by the US or EU or JP Health Authorities when regulatory submissions in all regions are not planned and after the primary study results have been accepted for publication.
IPD Sharing Access Criteria
Formal request from qualified scientific and medical researchers on IPD and clinical study documents from clinical trials supporting products submitted and licensed in the United States, the European Union and/or Japan from 01 January 2014 and beyond for the purpose of conducting legitimate research. This must be consistent with the principle of safeguarding study participants' privacy and consistent with provision of informed consent.
IPD Sharing URL
https://vivli.org/ourmember/daiichi-sankyo/

Learn more about this trial

A Phase 1b Open Label, Dose Escalation Study of PLX3397 in Combination With Vemurafenib in V600-mutated BRAF Melanoma

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