VX-950-TiDP24-C134: Drug-drug Interaction Trial Between Combination of Efavirenz and Tenofovir Disoproxil Fumarate and Different Dosages of Telaprevir on Healthy Volunteer

This study has been completed.
Sponsor:
Information provided by:
Tibotec BVBA
ClinicalTrials.gov Identifier:
NCT00828789
First received: January 22, 2009
Last updated: December 16, 2010
Last verified: December 2010
  Purpose

The purpose of this study is to determine the effect of EFV (Efavirenz) and TDF (Tenofovir disoproxil fumarate) on the pharmacokinetics of TVR (Telaprevir) and to determine the effect of TVR on the pharmacokinetics of EFV and TDF. Pharmacokinetics means how the drug is absorbed into the bloodstream, distributed in the body and eliminated from the body. Furthermore, the short-term safety and tolerability of giving TVR, EFV and TDF together will be evaluated.


Condition Intervention Phase
Hepatitis C
HCV
HIV
AIDS
Drug: Efavirenz; Tenofovir disoproxil fumarate; Telaprevir
Phase 1

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Pharmacokinetics Study
Intervention Model: Crossover Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: A Phase I, Open-label, Randomized, Crossover Trial in 20 Healthy Subjects to Investigate the Pharmacokinetic Interactions Between the Combination of Efavirenz and Tenofovir Disoproxil Fumarate and Different Dosages of Telaprevir.

Resource links provided by NLM:


Further study details as provided by Tibotec BVBA:

Primary Outcome Measures:
  • The primary objectives are to determine the effect of EFV and TDF on the pharmacokinetics of TVR and VRT-127394 and of TVR every 8h and every 12h on the pharmacokinetics of EFV and TDF.

Secondary Outcome Measures:
  • The secondary objective is to determine the short-term safety and tolerability of the coadministration of TVR, EFV and TDF.

Enrollment: 20
Study Start Date: February 2009
Study Completion Date: April 2009
Primary Completion Date: April 2009 (Final data collection date for primary outcome measure)
Detailed Description:

The trial will enroll 20 Healthy volunteers. All participants will receive 4 different treatments:

Treatment A: TVR every 8 hours alone for 6 days with an additional morning intake on Day 7. Treatment B: EFV + TDF once daily alone for 7 days. Treatment C: TVR every 8 hours + EFV once daily + TDF once daily for 7 days. Treatment D: TVR every 12 hours + EFV once daily + TDF once daily for 7 days.

All participants will start with Treatment A followed by a 7 or 8-day washout period. Subsequently, participants will start with Treatment B. At the end of Treatment B, participants will be randomized (this is assigned to one of the two sequences by chance) to continue without a washout period with Sequence 1 (Treatment C followed by D without a washout) or Sequence 2 (Treatment D followed by C without a washout). Participants will thus receive daily EFV and TDF for a total of 21 consecutive days, with addition of 2 different dosages of TVR for the last 14 days.

TVR will be taken with food, 30 minutes after the start of a meal. EFV and TDF should be taken on an empty stomach (2.5 hours after start of breakfast). Pharmacokinetic profiles of TVR and VRT-127394 (R-diastereomer of TVR) will be measured up to 8 hours after intake of the morning dose on Day 7 of Treatments A and C, and up to 12 hours after intake of the morning dose on Day 7 of Treatment D. Pharmacokinetic profiles of EFV and tenofovir will be measured up to 24 hours after intake on Day 7 of Treatments B, C, and D. Safety and tolerability evaluations will be recorded at regular intervals throughout the trial period. Treatment A: TVR every 8 hours alone for 6 days with an additional morning intake on Day 7. Treatment B: EFV + TDF once daily alone for 7 days. Treatment C: TVR every 8 hours + EFV once daily + TDF once daily for 7 days. Treatment D: TVR every 12 hours + EFV once daily + TDF once daily for 7 days.

  Eligibility

Ages Eligible for Study:   18 Years to 55 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes
Criteria

Inclusion Criteria:

  • Females should be post-menopausal (amenorrheal for at least 3 years), or have undergone tubal ligation (or other permanent birth control methods), or hysterectomy (total), or oophorectomy (bilateral)
  • Normal weight at screening as defined by a body mass index (BMI, weight in kg divided by the square of height in meters) of 18 to 30 kg/m2, extremes included
  • Normal 12-lead ECG at screening
  • Healthy on the basis of a physical examination, medical history, ECG, vital signs, and the results of blood biochemistry, blood coagulation and hematology tests and a urinalysis carried out at screening
  • Nonsmoking or smoking no more than 10 cigarettes, or 2 cigars, or 2 pipes per day for at least 3 months before study screening.

Exclusion Criteria:

  • No history or presence of relevant drug or food allergies, cardiovascular or central nervous system disease, clinically significant pathology, mental disease or psychiatric disorders, chronic skin disease, or drug abuse
  • Current use of prescription medication
  • Regular treatment with over-the-counter medications
  • Consumption of herbal medications or dietary supplements
  • A history of drug or alcohol abuse or addiction within 2 years prior to dosing, or a positive test for alcohol or drugs
  • Participation in a clinical study within 2 months or 5 half lives of the investigational drug prior to the screening visit
  • No positive HIV test or hepatitis A, B or C infection
  • Having any history of renal disease
  • Male subjects with female partners that are pregnant, or planning to become pregnant during the study or within 90 days of the last dose of study drug.
  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: NCT00828789

Sponsors and Collaborators
Tibotec BVBA
Investigators
Study Director: Tibotec-Virco Virology BVBA Clinical Trial Tibotec BVBA
  More Information

No publications provided

ClinicalTrials.gov Identifier: NCT00828789     History of Changes
Other Study ID Numbers: CR015790
Study First Received: January 22, 2009
Last Updated: December 16, 2010
Health Authority: USA: FOOD AND DRUG ADMINISTRATION - CENTER FOR DRUG EVALUATION AND RESEARCH

Keywords provided by Tibotec BVBA:
Hepatitis C
HCV
HIV
AIDS
Telaprevir
Efavirenz
Tenofovir disproxil fumarate
Healthy volunteer
VX-950-C134
VX-950-TiDP24-C134
HIV Infections

Additional relevant MeSH terms:
Hepatitis
Hepatitis C
Digestive System Diseases
Flaviviridae Infections
Hepatitis, Viral, Human
Liver Diseases
RNA Virus Infections
Virus Diseases
Efavirenz
Tenofovir
Tenofovir disoproxil
Anti-HIV Agents
Anti-Infective Agents
Anti-Retroviral Agents
Antiviral Agents
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action
Nucleic Acid Synthesis Inhibitors
Pharmacologic Actions
Reverse Transcriptase Inhibitors
Therapeutic Uses

ClinicalTrials.gov processed this record on October 21, 2014