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A Study on the Effect of Vemurafenib on the Pharmacokinetics of a Single Dose of Tizanidine in Patients With BRAFV600 Mutation-Positive Metastatic Malignancies

This study has been completed.
Sponsor:
ClinicalTrials.gov Identifier:
NCT01844674
First Posted: May 1, 2013
Last Update Posted: March 20, 2017
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by (Responsible Party):
Hoffmann-La Roche
  Purpose
This open-label, multicenter, 3-period, fixed-sequence study will evaluate the effect of multiple oral doses of vemurafenib on the pharmacokinetics of a single oral dose of tizanidine in participants with BRAFV600 mutation-positive metastatic malignancies. Participants will receive a single oral dose of tizanidine on Day 1, vemurafenib orally twice daily on Days 2 to 21, and tizanidine and vemurafenib on Day 22. Eligible participants will have the option to continue treatment with vemurafenib as part of an extension study (NCT01739764).

Condition Intervention Phase
Malignant Melanoma, Neoplasms Drug: Tizanidine Drug: Vemurafenib Phase 1

Study Type: Interventional
Study Design: Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Other
Official Title: A Phase I, Open-Label, Multicenter, 3- Period, Fixed-Sequence Study to Investigate the Effect of Vemurafenib on the Pharmacokinetics of a Single Dose of Tizanidine (a CYP1A2 Substrate) in Patients With BRAFV600 Mutation-Positive Metastatic Malignancy

Resource links provided by NLM:


Further study details as provided by Hoffmann-La Roche:

Primary Outcome Measures:
  • Pharmacokinetics of tizanidine under conditions of vemurafenib steady-state exposure: Area under the concentration-time curve (AUC) [ Time Frame: Pre-dose and up to 12 hours post-dose ]
  • Pharmacokinetics of tizanidine under conditions of vemurafenib steady-state exposure: Maximum plasma concentration (Cmax) [ Time Frame: Pre-dose and up to 12 hours post-dose ]
  • Pharmacokinetics of tizanidine under conditions of vemurafenib steady-state exposure: Time to maximum plasma concentration (Tmax) [ Time Frame: Pre-dose and up to 12 hours post-dose ]
  • Pharmacokinetics of tizanidine under conditions of vemurafenib steady-state exposure: Terminal half-life (t1/2) [ Time Frame: Pre-dose and up to 12 hours post-dose ]
  • Pharmacokinetics of tizanidine under conditions of vemurafenib steady-state exposure: Apparent clearance (CL/F) [ Time Frame: Pre-dose and up to 12 hours post-dose ]

Secondary Outcome Measures:
  • Safety: Incidence, nature and severity of adverse events and serious adverse events, graded according to the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) version 4.0 [ Time Frame: Up to approximately 9 months ]

Enrollment: 18
Actual Study Start Date: September 2, 2013
Study Completion Date: August 26, 2014
Primary Completion Date: August 26, 2014 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Pharmacokinetic Population
All participants will receive a 3-period treatment including single-dose tizanidine on Day 1, twice-daily vemurafenib on Days 2 to 21, and both agents together on Day 22.
Drug: Tizanidine
Participants will receive tizanidine as single oral doses, 2 milligrams (mg) on Day 1 and repeated on Day 22, each following an overnight fast >/= 10 hours.
Drug: Vemurafenib
Participants will receive vemurafenib as multiple oral doses, 960 mg twice daily on Days 2 to 22.

  Eligibility

Information from the National Library of Medicine

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, Learn About Clinical Studies.


Ages Eligible for Study:   18 Years to 70 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Adults 18 to 70 years of age, inclusive
  • Unresectable Stage IIIc or IV metastatic melanoma positive for the BRAFV600 mutation or other malignant tumor type which harbors a V600 activating mutation of BRAF, as determined by Cobas 4800 BRAFV600 Mutation Test or a DNA sequencing method
  • Eastern Cooperative Oncology Group (ECOG) performance status 0 to 2
  • Life expectancy greater than or equal to (>/=) 12 weeks
  • Participant has not consumed tobacco or nicotine-containing products for 42 days prior to first dose of study drug, and must agree to refrain from such products while on study
  • Adequate hematologic, renal and liver function

Exclusion Criteria:

  • Prior treatment with vemurafenib or other BRAF inhibitor within 42 days of Day 1
  • History of or current clinically significant cardiac or pulmonary dysfunction, including current uncontrolled Grade >/= 2 hypertension or unstable angina
  • Current dyspnea at rest due to complications of advanced malignancy or any requirement for supplemental oxygen
  • Active central nervous system lesions (participants with radiographically unstable, symptomatic lesions)
  • Participants with CYP1A2 gene mutation (-3113G->A), either in one or two alleles
  • Allergy or hypersensitivity to vemurafenib or tizanidine formulations
  • Current severe uncontrolled systemic disease
  • Inability or unwillingness to swallow pills
  • History of malabsorption or other condition that would interfere with enteral absorption of study treatment
  • History of clinically significant liver disease (including cirrhosis), current alcohol abuse, or human immunodeficiency (HIV) infection requiring antiretroviral treatment, acquired immune deficiency syndrome (AIDS)-related illness, or active hepatitis B or C
  • Pregnant or breastfeeding women
  Contacts and Locations
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01844674


Locations
United States, California
Diablo Valley Oncology and Hematology
Pleasant Hill, California, United States, 94523
United States, Michigan
Karmanos Cancer Center
Detroit, Michigan, United States, 48201
United States, North Carolina
Duke University Health Systems
Durham, North Carolina, United States, 27710
Brazil
Instituto Nacional do Cancer - INCA
Rio de Janeiro, RJ, Brazil, 20560-120
Hospital de Caridade de Ijui; Oncologia
Ijui, RS, Brazil, 98700-000
CITO - Centro Integrado de Terapia Onco-Hematológica - Hospital da Cidade de Passo Fundo
Passo Fundo, RS, Brazil, 99010-260
Hospital Sao Lucas - PUCRS
Porto Alegre, RS, Brazil, 90610-000
Canada, Quebec
CSSS champlain - Charles-Le Moyne
Greenfield Park, Quebec, Canada, J4V 2H1
Cyprus
Bank of Cyprus Oncology Center
Nicosia, Cyprus, 2006
Korea, Republic of
Severance Hospital, Yonsei University Health System
Seoul, Korea, Republic of, 03722
Samsung Medical Center
Seoul, Korea, Republic of, 06351
Asan Medical Center.
Seoul, Korea, Republic of, 138-736
Sponsors and Collaborators
Hoffmann-La Roche
Investigators
Study Director: Clinical Trials Hoffmann-La Roche
  More Information

Responsible Party: Hoffmann-La Roche
ClinicalTrials.gov Identifier: NCT01844674     History of Changes
Other Study ID Numbers: GO28396
2012-003705-94 ( EudraCT Number )
First Submitted: April 29, 2013
First Posted: May 1, 2013
Last Update Posted: March 20, 2017
Last Verified: March 2017

Additional relevant MeSH terms:
Melanoma
Neuroendocrine Tumors
Neuroectodermal Tumors
Neoplasms, Germ Cell and Embryonal
Neoplasms by Histologic Type
Neoplasms
Neoplasms, Nerve Tissue
Nevi and Melanomas
Vemurafenib
Tizanidine
Clonidine
Antineoplastic Agents
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action
Analgesics
Sensory System Agents
Peripheral Nervous System Agents
Physiological Effects of Drugs
Anticonvulsants
Muscle Relaxants, Central
Neuromuscular Agents
Parasympatholytics
Autonomic Agents
Adrenergic alpha-2 Receptor Agonists
Adrenergic alpha-Agonists
Adrenergic Agonists
Adrenergic Agents
Neurotransmitter Agents
Antihypertensive Agents
Sympatholytics