Clinical trial NCT01157104: A Drug-Drug Interaction Study Evaluating the Combination of IDX320 and IDX184 in Healthy Participants (MK-6844-002)
Official title: A Phase I, Double-Blind, Multiple-Dose Study to Evaluate the Pharmacokinetic Drug-Drug Interaction Between IDX320 and IDX184 in Healthy Subjects
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: PHASE1
Conditions: Chronic Hepatitis C
Keywords: HCV
Hepatitis C
Lead sponsor: Merck Sharp & Dohme LLC
Sponsor class: INDUSTRY
First posted: 2010-07-05
Enrollment: 20
Sex: ALL
Minimum age (years): 19
Maximum age (years): 65
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: CROSSOVER
Primary purpose: TREATMENT

Brief summary: This study is designed to evaluate the potential for a pharmacokinetic (PK) drug-drug interaction between IDX320 and IDX184 and to assess the safety and tolerability when the two drugs are administered in combination in healthy participants.


Eligibility criteria: Inclusion Criteria:

To participate in the study, participants must meet the following requirements:

1. Must be a healthy male or female between 19 and 65 years of age with body mass index (BMI) between 18 and 35 kg/m2.
2. Must be a non-smoker.
3. Must agree to use an acceptable double-barrier method of birth control.
4. Must provide written informed consent after the study has been fully explained.

Exclusion Criteria:

Participants are not eligible if they meet any of the following:

1. Pregnant or breastfeeding.
2. History of clinically significant diseases, as determined by the investigator.
3. Safety laboratory abnormalities at screening which are clinically significant.
4. Positive screening test for hepatitis B virus, hepatitis C virus or human immunodeficiency virus (HIV).
5. Use of chronic prescription medications within 3 months, acute prescription medications within 14 days, or systemic over-the-counter (OTC) medications within 7 days of the starting the study.
6. Current abuse of alcohol or illicit drugs, or history of alcohol or illicit drug abuse within the preceding two years.

Primary outcomes:
measure: Area under the curve at steady state (AUCss) of plasma IDX320
timeFrame: Days 1-7 pre-dose; Day 7: 0.5, 1, 2, 3, 4, 6, 8, 12, 16, 20 hrs postdose; Days 8-14 pre-dose; Day 14: 0.5, 1, 2, 3, 4, 6, 8, 12, 16, 20, 24, 36, 48, 72, 96, and 120 hrs postdose
measure: AUCss of plasma IDX184
timeFrame: Days 1-7 pre-dose; Day 7: 0.5, 1, 2, 3, 4, 6, 8, 12, 16, 20 hrs postdose; Days 8-14 pre-dose; Day 14: 0.5, 1, 2, 3, 4, 6, 8, 12, 16, 20, 24, 36, 48, 72, 96, and 120 hrs postdose
measure: AUCss of plasma 2'-methylguanosine (2'-MeG)
timeFrame: Days 1-7 pre-dose; Day 7: 0.5, 1, 2, 3, 4, 6, 8, 12, 16, 20 hrs postdose; Days 8-14 pre-dose; Day 14: 0.5, 1, 2, 3, 4, 6, 8, 12, 16, 20, 24, 36, 48, 72, 96, and 120 hrs postdose
measure: Maximum observed concentration (Cmax) of plasma IDX320
timeFrame: Days 1-7 pre-dose; Day 7: 0.5, 1, 2, 3, 4, 6, 8, 12, 16, 20 hrs postdose; Days 8-14 pre-dose; Day 14: 0.5, 1, 2, 3, 4, 6, 8, 12, 16, 20, 24, 36, 48, 72, 96, and 120 hrs postdose
measure: Cmax of plasma IDX184
timeFrame: Days 1-7 pre-dose; Day 7: 0.5, 1, 2, 3, 4, 6, 8, 12, 16, 20 hrs postdose; Days 8-14 pre-dose; Day 14: 0.5, 1, 2, 3, 4, 6, 8, 12, 16, 20, 24, 36, 48, 72, 96, and 120 hrs postdose
measure: Cmax of plasma 2'-MeG
timeFrame: Days 1-7 pre-dose; Day 7: 0.5, 1, 2, 3, 4, 6, 8, 12, 16, 20 hrs postdose; Days 8-14 pre-dose; Day 14: 0.5, 1, 2, 3, 4, 6, 8, 12, 16, 20, 24, 36, 48, 72, 96, and 120 hrs postdose
measure: Trough concentration (Ctrough) of plasma IDX320
timeFrame: Days 1-7 pre-dose; Day 7: 0.5, 1, 2, 3, 4, 6, 8, 12, 16, 20 hrs postdose; Days 8-14 pre-dose; Day 14: 0.5, 1, 2, 3, 4, 6, 8, 12, 16, 20, 24, 36, 48, 72, 96, and 120 hrs postdose
measure: Ctrough of plasma IDX184
timeFrame: Days 1-7 pre-dose; Day 7: 0.5, 1, 2, 3, 4, 6, 8, 12, 16, 20 hrs postdose; Days 8-14 pre-dose; Day 14: 0.5, 1, 2, 3, 4, 6, 8, 12, 16, 20, 24, 36, 48, 72, 96, and 120 hrs postdose
measure: Ctrough of plasma 2"-MeG
timeFrame: Days 1-7 pre-dose; Day 7: 0.5, 1, 2, 3, 4, 6, 8, 12, 16, 20 hrs postdose; Days 8-14 pre-dose; Day 14: 0.5, 1, 2, 3, 4, 6, 8, 12, 16, 20, 24, 36, 48, 72, 96, and 120 hrs postdose
Secondary outcomes:
measure: Number of participants with an adverse event (AE)
timeFrame: Up to Day 19
measure: Number of participants who discontinued treatment due to an AE
timeFrame: Up to Day 14
Other outcomes:
Locations:
Study officials:
affiliation: Merck Sharp & Dohme LLC
name: Medical Director
role: STUDY_DIRECTOR
References: