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A Study to Investigate the Effect of CYP3A Inhibition on the Pharmacokinetics of RO7017773 in Healthy Participants

A Non-Randomized, Open Label, One Sequence, Two-Period Cross-Over Study to Investigate the Effect of CYP3A Inhibition on the Pharmacokinetics of RO7017773 in Healthy Participants

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03774576
Enrollment
14
Registered
2018-12-13
Start date
2018-12-17
Completion date
2019-03-14
Last updated
2020-05-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy Volunteers

Brief summary

The purpose of this study is to investigate the effect of multiple oral doses of itraconazole on the pharmacokinetics of RO7017773 in healthy volunteers.

Interventions

Single doses of RO7017773

DRUGItraconazole

Multiple doses of Itraconazole

Sponsors

Hoffmann-La Roche
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 55 Years
Healthy volunteers
Yes

Inclusion criteria

* Healthy (absence of evidence of any active or chronic disease following a detailed medical and surgical history, a complete physical examination including vital signs, 12-lead ECG, hematology, blood chemistry, serology and urinalysis) as judged by the Investigator. * Male and women of non-childbearing potential (WONCBP)

Exclusion criteria

* History of convulsions (other than benign febrile convulsions of childhood) including epilepsy, or personal history of significant cerebral trauma or central nervous system (CNS) infections (e.g., meningitis) * History of clinically significant hypersensitivity or allergic reactions * Abnormal blood pressure * Abnormal pulse rate * History or presence of clinically significant ECG abnormalities before study drug administration or cardiovascular disease * Current or chronic history of liver disease, or known hepatic or biliary abnormalities * Positive test for drugs of abuse or alcohol * Evidence of human immunodeficiency virus (HIV) infection * Presence of hepatitis B surface antigen (HBsAg) or positive HCV antibody test result at screening or within 3 months prior to starting study treatment * Participants who regularly smoke more than 5 cigarettes daily or the equivalent and are unable or unwilling not to smoke during the in-house period

Design outcomes

Primary

MeasureTime frame
Maximum Concentration (Cmax) of RO7017773 in PlasmaPeriod 1 (RO7017773) and Period 2 (RO7017773 + Itraconazole)

Secondary

MeasureTime frameDescription
Percentage of Participants With Adverse Events (AEs)12 weeks
Change in Suicide Risk as Assessed Using the Columbia Suicide Severity Rating Scale (C-SSRS)From screening visit through Period 2 Day 11The C-SSRS is an assessment tool to evaluate suicidal ideation and behavior. Categories have binary responses (yes/no) and include: Wish to be Dead; Non-specific Active Suicidal Thoughts; Active Suicidal Ideation with Any Methods (Not Plan) without Intent to Act; Active Suicidal Ideation with Some Intent to Act, without Specific Plan; Active Suicidal Ideation with Specific Plan and Intent, Preparatory Acts and Behavior; Aborted Attempt; Interrupted Attempt; Actual Attempt (non-fatal); Completed Suicide. Suicidal ideation or behavior is indicated by a yes answer to any of the listed categories. A score of 0 is assigned if no suicide risk is present.
Cmax of Itraconazole in PlasmaPeriod 2

Countries

France

Participant flow

Recruitment details

Healthy male and female participants between 18 and 55 years old. Female participants were women of non-childbearing potential (WONCBP).

Participants by arm

ArmCount
RO7017773 Alone, Then RO7017773 + Itraconazole
In Period 1, participants received a single dose of RO7017773 alone in a fed state. In Period 2, participants received a single dose of RO7017773 after repeated doses of itraconazole in a fed state.
14
Total14

Withdrawals & dropouts

PeriodReasonFG000
Period 2Adverse Event1

Baseline characteristics

CharacteristicRO7017773 Alone, Then RO7017773 + Itraconazole
Age, Continuous44.1 Years
STANDARD_DEVIATION 10.7
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
14 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Sex: Female, Male
Female
3 Participants
Sex: Female, Male
Male
11 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
0 / 140 / 140 / 13
other
Total, other adverse events
8 / 142 / 147 / 13
serious
Total, serious adverse events
0 / 140 / 140 / 13

Outcome results

Primary

Maximum Concentration (Cmax) of RO7017773 in Plasma

Time frame: Period 1 (RO7017773) and Period 2 (RO7017773 + Itraconazole)

Population: The pharmacokinetic set (PKS) included all participants who received at least one dose of study treatment and who had data from at least one post-dose sample. This outcome measure is specific to the reported arms.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
RO7017773 AloneMaximum Concentration (Cmax) of RO7017773 in Plasma458 ng/mLGeometric Coefficient of Variation 32.1
RO7017773 + ItraconazoleMaximum Concentration (Cmax) of RO7017773 in Plasma516 ng/mLGeometric Coefficient of Variation 22.7
Secondary

Change in Suicide Risk as Assessed Using the Columbia Suicide Severity Rating Scale (C-SSRS)

The C-SSRS is an assessment tool to evaluate suicidal ideation and behavior. Categories have binary responses (yes/no) and include: Wish to be Dead; Non-specific Active Suicidal Thoughts; Active Suicidal Ideation with Any Methods (Not Plan) without Intent to Act; Active Suicidal Ideation with Some Intent to Act, without Specific Plan; Active Suicidal Ideation with Specific Plan and Intent, Preparatory Acts and Behavior; Aborted Attempt; Interrupted Attempt; Actual Attempt (non-fatal); Completed Suicide. Suicidal ideation or behavior is indicated by a yes answer to any of the listed categories. A score of 0 is assigned if no suicide risk is present.

Time frame: From screening visit through Period 2 Day 11

Population: The included set (IS) contained all study participants.

ArmMeasureGroupValue (MEAN)Dispersion
RO7017773 AloneChange in Suicide Risk as Assessed Using the Columbia Suicide Severity Rating Scale (C-SSRS)Screening0 Units on a scaleStandard Deviation 0
RO7017773 AloneChange in Suicide Risk as Assessed Using the Columbia Suicide Severity Rating Scale (C-SSRS)Period 2 Day 110 Units on a scaleStandard Deviation 0
RO7017773 + ItraconazoleChange in Suicide Risk as Assessed Using the Columbia Suicide Severity Rating Scale (C-SSRS)Screening0 Units on a scaleStandard Deviation 0
RO7017773 + ItraconazoleChange in Suicide Risk as Assessed Using the Columbia Suicide Severity Rating Scale (C-SSRS)Period 2 Day 110 Units on a scaleStandard Deviation 0
Secondary

Cmax of Itraconazole in Plasma

Time frame: Period 2

Population: The pharmacokinetic set (PKS) included all participants who received at least one dose of study treatment and who had data from at least one post-dose sample. This outcome measure is specific to the reported arm.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
RO7017773 AloneCmax of Itraconazole in Plasma724 ng/mLGeometric Coefficient of Variation 43.2
Secondary

Percentage of Participants With Adverse Events (AEs)

Time frame: 12 weeks

Population: The safety set (SS) included all participants who received at least one dose of study treatment and included any participant(s) that were withdrawn from the study.

ArmMeasureValue (NUMBER)
RO7017773 AlonePercentage of Participants With Adverse Events (AEs)57.1 Percentage of Participants
RO7017773 + ItraconazolePercentage of Participants With Adverse Events (AEs)14.3 Percentage of Participants
RO7017773 + ItraconazolePercentage of Participants With Adverse Events (AEs)53.8 Percentage of Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026