The main purpose of this study is to characterize the single-dose pharmacokinetics (PK) of rilpivirine (RPV) after intramuscular (IM) injection of rilpivirine long-acting parenteral formulation (RPV LA) nanosuspensions with different particle size distribution (PSD), in healthy adult participants.
This is a phase 1, open-label (all people know the identity of the intervention), randomized (study medication is assigned by chance), parallel-group, sequential study in healthy adult participants to characterize the single-dose pharmacokinetics (PK) of rilpivirine (RPV) after intramuscular (IM) injection of RPV LA nanosuspensions with different particle size distributions (PSD), in healthy adult participants. A total of 110 healthy adult participants will be enrolled in this study. The study will consist of 2 treatment sessions in a fixed sequential order: Session 1- all participants will receive a single oral dose of rilpivirine 25 milligram (mg) as oral immediate release solution on Day 1; Session 2- the participants will be randomized in session 2 on Day 1 in a 1:1:1:1:1 ratio to Treatments A, B, C, D and E. Each treatment group will receive a single IM injection of RPV LA on Day 1 of session 2. Session 1 and 2 will be separated by a washout period of at least 14 days. The total study duration for each participant will be approximately 9.5 months. Safety will be monitored throughout the study.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
OTHER
Masking
NONE
Enrollment
110
Rilpivirine 25 mg immediate release oral solution.
RPV LA 600 mg extended-release suspension for IM injection.
Celerion
Tempe, Arizona, United States
Celerion
Lincoln, Nebraska, United States
Session 2: Maximum Observed Plasma Concentration (Cmax)
The Cmax is the maximum observed plasma concentration.
Time frame: Pre-dose, 1, 2, 4, 8, 12, 24, 48, 72, 96, 120, 168, 216, 264, 336, 408, 528, 672, 1344, 2016, 2688, 3360, 4032, 4704, 5376, and 6048 hours post-dose
Session 2: Area Under the Plasma Concentration-Time Curve From Time Zero (Day 1) to Day 28 (AUC[0-d28])
The AUC (0-d28) is the area under the plasma concentration-time curve from time of administration up to Day 28 postdose.
Time frame: 1, 2, 4, 8, 12, 24, 48, 72, 96, 120, 168, 216, 264, 336, 408, and 528 hours post-dose
Session 2: Area Under the Plasma Concentration-Time Curve From Time Zero to Last Quantifiable Time (AUC [0-last])
The AUC (0-last) is the area under the plasma concentration-time curve from time zero to last quantifiable time.
Time frame: Pre-dose, 1, 2, 4, 8, 12, 24, 48, 72, 96, 120, 168, 216, 264, 336, 408, 528, 672, 1344, 2016, 2688, 3360, 4032, 4704, 5376, and 6048 hours post-dose
Session 2: Area Under the Plasma Concentration-Time Curve From Time Zero to Infinite Time (AUC[0-infinity])
The AUC (0-infinity) is the area under the plasma concentration-time curve from time zero to infinite time, calculated as the sum of AUC(last) and C(last)/lambda(z); wherein AUC(last) is area under the plasma concentration-time curve from time zero to last quantifiable time, C(last) is the last observed quantifiable concentration, and lambda(z) is elimination rate constant.
Time frame: Pre-dose, 1, 2, 4, 8, 12, 24, 48, 72, 96, 120, 168,216, 264, 336, 408, 528, 672, 1344, 2016, 2688, 3360, 4032, 4704, 5376, and 6048 hours post-dose
Number of Participants With Adverse Events as a Measure of Safety and Tolerability
An adverse event is any untoward medical event that occurs in a participant administered an investigational product, and it does not necessarily indicate only events with clear causal relationship with the relevant investigational product.
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Time frame: Baseline, up to 9.5 months
Session 1: Maximum Observed Plasma Concentration (Cmax)
The Cmax is the maximum observed plasma concentration.
Time frame: Pre-dose, 0.5, 1, 2, 3, 4, 5, 6, 9, 12, 16, 24, 48, 72, 120 and 168 hours post-dose
Session 1: Area Under the Plasma Concentration-Time Curve From Time Zero (Day 1) to Day 28 AUC (0-d28)
The AUC (0-d28) is the area under the plasma concentration time curve from time of administration up to Day 28 postdose.
Time frame: 1, 2, 3, 4, 5, 6, 9, 12, 16, 24, 48, 72, 120, 168, hours post-dose
Session 1: Area Under the Plasma Concentration-Time Curve From Time Zero to Last Quantifiable Time AUC (0-last)
The AUC (0-last) is the area under the plasma concentration time curve from time zero to last quantifiable time.
Time frame: Pre-dose, 0.5, 1, 2, 3, 4, 5, 6, 9, 12, 16, 24, 48, 72, 120 and 168 hours post-dose
Session 1: Area Under the Plasma Concentration-Time Curve From Time Zero To Infinite Time AUC (0-infinity)
The AUC (0-infinity) is the area under the plasma concentration time curve from time zero to infinite time, calculated as the sum of AUC(last) and C(last)/lambda(z). wherein AUC(last) is area under the plasma concentration time curve from time zero to last quantifiable time, C(last) is the last observed quantifiable concentration, and lambda(z) is elimination rate constant.
Time frame: Pre-dose, 0.5, 1, 2, 3, 4, 5, 6, 9, 12, 16, 24, 48, 72, 120 and 168 hours post-dose