TMC278-TiDP6-C136: Effect of TMC278 on Ethinylestradiol and Norethindrone in Healthy Women.

A Phase I, Open-label Drug-drug Interaction Trial to Investigate the Effect of TMC278 25 mg q.d. on the Steady State Pharmacokinetics of Ethinylestradiol and Norethindrone, in Healthy Women

The purpose of this study is to investigate the pharmacokinetic interaction between the combination of ethinylestradiol and norethindrone and TMC278 25 mg once daily. 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 (how well the body tolerates the drug) of co-administration of TMC278 and ethinylestradiol and norethindrone, in healthy women, will be assessed.

Study Overview

• Status: Completed
• Conditions: HIV; Oral Contraceptive; AIDS
• Intervention / Treatment: Drug: TMC278

Detailed Description

Human immunodeficiency virus (HIV)-infected patients are routinely being treated with combinations of 3 or 4 drugs (highly active antiretroviral therapy [HAART]), to reduce the risk of viral resistance development. Development of new potent antiretroviral (ARV) drugs is urgently needed to prolong suppression of viral replication in patients infected with HIV. This is a Phase I, open-label trial in healthy women to investigate the pharmacokinetic interaction between the combination of ethinylestradiol and norethindrone and TMC278 25 mg once daily. The trial aims to allow further recommendations regarding the concurrent use of oral contraceptives and TMC278. The trial population will consist of 18 healthy women who are stable on oral contraceptives (OC), specifically ethinylestradiol and norethindrone, or who, if they are not currently using this OC, are willing to start or switch to this OC for the duration of the study.

Healthy volunteers will receive the OC once daily for 21 days for at least 1 OC cycle prior to Day 1 [stabilizing OC cycle from Day -28 to Day -1]. During the second OC cycle [from Day 1 to Day 28], subjects will receive the OC alone once daily for 21 days [Treatment A]. During the third OC cycle [from Day 29 to 56], subjects will receive the OC once daily for 21 days and in addition TMC278 25 mg q.d. in the morning for 15 days, starting on the first day of OC intake (Day 29) [Treatment B]. Full 24-hour pharmacokinetic profiles of ethinylestradiol and norethindrone will be determined after the first 2 weeks of the second OC cycle (Treatment A: OC alone; Day 15) and after the first 2 weeks of the third OC cycle (Treatment B: OC+TMC278; Day 43). A full 24-hour pharmacokinetic profile of TMC278 will be determined on Day 43. Blood samples on these days will be drawn just before drug intake (predose), and at 0.5, 1, 1.5, 2, 3, 4, 5 (Day 43 only), 6, 9, 12, 16 (Day 43 only) and 24 hours postdose. Safety evaluations include evaluation of adverse events, physical examination including vital signs, ECGs and laboratory hematology and biochemistry assessments. Healthy volunteers will receive a tablet of ethinylestradiol and norethindrone OC once daily for 21 days for at least 1 OC cycle prior to Day 1. During the second OC cycle, healthy volunteers will receive a tablet of ethinylestradiol and norethindrone OC alone once daily for 21 days. During the third OC cycle, healthy volunteers will receive a tablet of ethinylestradiol and norethindrone once daily for 21 days and in addition a tablet of TMC278 25 mg once daily in the morning for 15 days.

• Study Type: Interventional
• Enrollment (Actual): 18
• Phase: Phase 1

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 45 years (Adult)
• Accepts Healthy Volunteers: Yes
• Genders Eligible for Study: Female

Description

Inclusion Criteria:

• Willing to start or continue oral contraceptive therapy, specifically ethinylestradiol and norethindrone, for the duration of the study
• Consent to a method of birth control in addition to the OC trial medication
• Non-smoking or smoking no more than 10 cigarettes, or 2 cigars, or 2 pipes per day for at least 3 months prior to screening
• Body Mass Index (BMI) of 18.0 to 30.0 kg/m2, extremes included
• Healthy on the basis of a physical examination, medical history, electrocardiogram, vital signs and the results of blood biochemistry and hematology tests and a urinalysis carried out at screening.

Exclusion Criteria:

• The most important eligibility criteria are: Not pregnant or breastfeeding
• Not postmenopausal
• No positive HIV test
• No alcohol or barbiturate, amphetamine, recreational or narcotic drug use
• No hepatitis A, B or C infection
• No currently active gastrointestinal, cardiovascular, neurologic, psychiatric, metabolic, renal, hepatic, respiratory, inflammatory or infectious disease
• No history of significant skin disease
• No previously demonstrated clinically significant allergy or hypersensitivity to any of the excipients of the medication administered in this trial (i.e. TMC278, Ovysmen®)
• No clinical significant abnormal finding in the gynaecological examination
• No currently active gynaecological disorders
• No major medical condition that would preclude the safe administration of oral contraceptive therapy
• No participation in an investigational drug trial within 60 days prior to the start of the first OC cycle

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Non-Randomized
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

What is the study measuring?

Primary Outcome Measures

Outcome Measure
The primary objective of this study is to determine the effect of steady-state concentrations of TMC278 25 mg once daily on the steady-state pharmacokinetics of ethinylestradiol 35 mcg and norethindrone 1 mg once daily.

Secondary Outcome Measures

Outcome Measure
The secondary objective of this study is to evaluate the short-term safety and tolerability of coadministration of TMC278 and ethinylestradiol and norethindrone OC in healthy women.

Collaborators and Investigators

• Sponsor: Tibotec Pharmaceuticals, Ireland

Publications and helpful links

General Publications

• Crauwels HM, van Heeswijk RP, Buelens A, Stevens M, Hoetelmans RM. Lack of an effect of rilpivirine on the pharmacokinetics of ethinylestradiol and norethindrone in healthy volunteers. Int J Clin Pharmacol Ther. 2014 Feb;52(2):118-28. doi: 10.5414/CP201943.

Study record dates

Study Major Dates

• Study Start: July 1, 2008
• Primary Completion (Actual): December 1, 2008
• Study Completion (Actual): December 1, 2008

Study Registration Dates

• First Submitted: August 20, 2008
• First Submitted That Met QC Criteria: August 21, 2008
• First Posted (Estimate): August 22, 2008

Study Record Updates

• Last Update Posted (Estimate): April 28, 2010
• Last Update Submitted That Met QC Criteria: April 26, 2010
• Last Verified: April 1, 2010

More Information

Terms related to this study

• Keywords: Healthy Volunteer; TMC278-TiDP6-C136; TMC278-C136
• Additional Relevant MeSH Terms: Molecular Mechanisms of Pharmacological Action; Anti-Infective Agents; Antiviral Agents; Reverse Transcriptase Inhibitors; Nucleic Acid Synthesis Inhibitors; Enzyme Inhibitors; Anti-HIV Agents; Anti-Retroviral Agents; Rilpivirine
• Other Study ID Numbers: CR010762