A Study of the Effect of Multiple Doses of Itraconazole and Fluoxetine on the Pharmacokinetics of a Single Dose of RO5285119 in Healthy Subjects

Study Overview
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Brief Summary
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This single-center, open-label, one-sequence, 2-period, within-subject study in 2 cohorts will evaluate the effects of multiple doses of itraconazole and fluoxetine on the pharmacokinetics of a single dose of RO5285119 in healthy volunteers. In Cohort 1, subjects will receive a single dose of RO5285119 on Day 1 (Period 1) and, after a wash-out period of 14 days, itraconazole on Days 1-8 of Period 2 with coadministration of RO5285119 on Day 4. In Cohort 2, subjects will receive a single dose of RO5285119 on Day 1 (Period 1) and, after a wash-out period of 14 days, fluoxetine on Days 1-12 of Period 2 with coadministration of RO5285119 on Day 6.

Official Title
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A Single-Center, Open-Label, One-Sequence, 2-Period, Within-Subject Study in 2 Cohorts to Investigate the Effect of Multiple Doses of Itraconazole (Cohort 1) and Fluoxetine (Cohort 2) on the Pharmacokinetics of a Single Dose of RO5285119 in Healthy Subjects

Conditions
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Healthy Volunteer

Intervention / Treatment
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* Drug: RO5285119
* Drug: fluoxetine
* Drug: itraconazole


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Healthy male and female subjects, 18 to 55 years of age, inclusive. Healthy status is defined by absence of evidence of any active or chronic disease following a detailed medical and surgical history, and a complete physical examination Body mass index (BMI) between 18 to 30 kg/m2 inclusive Women must be postmenopausal (for at least 12 months of amenorrhea confirmed by FSH, or for at least 24 months if on hormone replacement therapy) or surgically sterile (absence of ovaries and/or uterus) For men with a female partner of child-bearing potential: agreement to use a barrier method of contraception during the treatment period and for at least 3 months after the last dose of study drug Exclusion Criteria: Suspicion of regular consumption of drug of abuse, or history of drug or alcohol abuse Positive for hepatitis B, hepatitis C , or HIV infection Participation in an investigational drug or device study within 90 days prior to first dosing Concomitant disease or condition that could interfere with, or treatment of which might interfere with, the conduct of the study, or that would, in the opinion of the investigator, pose an unacceptable risk to the subject in this study Hypersensitivity to itraconazole, to any of the other ingredients, or to any other triazole antifungal, or any other known contraindications to itraconazole as stated in the SmPC Hypersensitivity to fluoxetine or to any of the other ingredients, or any other known contraindications to fluoxetine as stated in the SmPC

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 55 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Allocation: Non-Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Cohort 1 (Itraconazole DDI)<br> | Drug: RO5285119<br>* Single dose, alone and after repeated administration of itraconazole or fluoxetine<br>Drug: itraconazole<br>* Multiple doses<br>|
| Experimental: Cohort 2 (Fluoxetine DDI)<br> | Drug: RO5285119<br>* Single dose, alone and after repeated administration of itraconazole or fluoxetine<br>Drug: fluoxetine<br>* Multiple doses<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Effect of multiple doses of itraconazole and fluoxetine on the pharmacokinetics of a single dose of RO5285119 in healthy volunteers: Maximum concentration (Cmax) / Area under the concentration-time curve (AUC) |  | up to 5 and 7 days post-dose for cohort 1 and cohort 2, respectively | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Safety and tolerability of a single dose of RO5285119 administered in combination with itraconazole (cohort 1) and fluoxetine (cohort 2): Incidence of adverse events |  | up to 6 weeks |