A Pharmacokinetic Study of RO5185426 in Combination With a Drug Cocktail in Patients With Metastatic Melanoma

This study has been completed.
Information provided by (Responsible Party):
Hoffmann-La Roche
ClinicalTrials.gov Identifier:
First received: October 21, 2009
Last updated: June 1, 2015
Last verified: June 2015

This open-label single-arm study will evaluate the effect of RO5185426 [RG7204; PLEXXIKON: PLX4032] on the pharmacokinetics of five CYP450 substrates (caffeine, warfarin + vitamin K, omeprazole, dextromethorphan, midazolam) administered as a drug cocktail to patients with metastatic melanoma. The study will also evaluate efficacy and safety of RO5185426. On day 1, patients will receive the drug cocktail. On days 6 to 19, patients will receive RO5185426 twice daily. On day 20, patients will receive RO5185426 and the drug cocktail and on days 21 to 25, patients will receive RO5185426. Assessments will be made at regular intervals during the dosing periods and at follow-up. Patients may continue on study treatment (RO5185426) until the development of progressive disease or unacceptable toxicity. Target sample size <50.

Condition Intervention Phase
Malignant Melanoma
Drug: Drug cocktail
Drug: RO5185426
Phase 1

Study Type: Interventional
Study Design: Allocation: Non-Randomized
Endpoint Classification: Pharmacokinetics Study
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: A Multi-center, Open-label, Study to Investigate the Pharmacokinetic Interaction of RO5185426 With a "Cocktail" of Five Probe Drugs for CYP450 Dependent Metabolism in Patients With Previously Treated and Untreated Metastatic Melanoma

Resource links provided by NLM:

Further study details as provided by Hoffmann-La Roche:

Primary Outcome Measures:
  • Pharmacokinetics: blood concentration levels of RO5185426 and of the 5 drugs of the drug cocktail and their metabolites [ Time Frame: Multiple sampling, days 1-25 ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • Efficacy: best overall response rate, duration of response, time to response, progression-free survival, overall survival [ Time Frame: Tumour assessment on day 28 and every 8 weeks thereafter ] [ Designated as safety issue: No ]
  • Safety and tolerability: AEs, laboratory parameters [ Time Frame: Throughout study, laboratory assessments on days 1, 2, 5, 18, 20, 22 and every 1-2 cycles thereafter ] [ Designated as safety issue: No ]

Enrollment: 25
Study Start Date: November 2009
Study Completion Date: June 2013
Primary Completion Date: June 2013 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Single arm Drug: Drug cocktail
Drug cocktail (caffeine, warfarin + vitamin K, omeprazole, dextromethorphan, midazolam) orally once daily, day 1 and day 20
Drug: RO5185426
960 mg orally twice daily


Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Adult patient >/= 18 years of age
  • Malignant melanoma (Stage IV, AJCC)
  • Patients who are treatment-naive or have received prior systemic treatments for metastatic melanoma. Time elapsed between previous treatment for metastatic disease and first administration of study drug must be at least 28 days
  • Positive tested for BRAF mutation
  • Patients must not be poor metabolizers of CYP450 enzymes 2C9, 2C19, or 2D6 as determined by genotyping
  • Measurable disease by RECIST criteria
  • Negative pregnancy test; for fertile men and women, effective contraception during treatment and for 6 months after completion

Exclusion Criteria:

  • Active CNS lesions on CT/MRI within 28 days prior to enrollment
  • History of known spinal cord compression, or carcinomatous meningitis
  • Severe cardiovascular disease within 6 months prior to study
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT01001299

United States, California
Los Angeles, California, United States, 90095
United States, Massachusetts
Boston, Massachusetts, United States, 02114
Boston, Massachusetts, United States, 02215
United States, Tennessee
Nashville, Tennessee, United States, 37232
United States, Texas
Dallas, Texas, United States, 75246
Sponsors and Collaborators
Hoffmann-La Roche
Study Director: Clinical Trials Hoffmann-La Roche
  More Information

No publications provided by Hoffmann-La Roche

Additional publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: Hoffmann-La Roche
ClinicalTrials.gov Identifier: NCT01001299     History of Changes
Other Study ID Numbers: NP22676
Study First Received: October 21, 2009
Last Updated: June 1, 2015
Health Authority: United States: Food and Drug Administration

Additional relevant MeSH terms:
Neoplasms by Histologic Type
Neoplasms, Germ Cell and Embryonal
Neoplasms, Nerve Tissue
Neuroectodermal Tumors
Neuroendocrine Tumors
Nevi and Melanomas

ClinicalTrials.gov processed this record on September 02, 2015