CClinicalTrials.gg
CompletedNCT02254759Updated Nov 2, 2016

A Study of RO5186582 Treatment on Cytochrome P450 (CYP) 3A4 Activity in Healthy Participants

A Phase 1 interventional study of Midazolam, IV and Midazolam, oral in Healthy Volunteer, sponsored by Hoffmann-La Roche. Completed at 1 site in United Kingdom. Open to participants aged 18 Years to 60 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2016-11-02.

Sponsored by Hoffmann-La Roche · Phase 1 and Interventional

Phase
Phase 1
Study type
Interventional
Enrollment
12
Allocation
Non-randomized
Ages
18 Years to 60 Years
Sex
All
01

Study summary

This is a non-randomized, open-label, five treatment, fixed sequence cross-over study to investigate the effect of RO5186582 treatment on CYP3A activity using midazolam as a probe CYP3A substrate, and also to assess the pharmacodynamic measures of brain electrical activity and sedation to explore the pharmacodynamic interaction between the gama-amino butyric acid (GABA)A negative allosteric modulator RO5186582 and the prototypical GABAA positive allosteric modulator midazolam. The anticipated study duration is up to nine weeks.

02

Conditions studied

  • Healthy Volunteer
03

In context

Lead sponsor

Hoffmann-La Roche is the lead sponsor of 2,061 studies on the registry; 85 are open to participants now.

Of its 319 completed or terminated interventional studies of FDA-regulated products, 239 (75%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 60 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Healthy participants with signed informed consent.

Exclusion criteria

Exclusion Criteria:

  • A history of epilepsy, convulsions or significant head injury
  • Significant history of drug allergy, as determined by the Investigator, or a known hypersensitivity to any of the ingredients of any of the study treatments
  • Use of any drugs or substances, including herbal treatments such as St John's Wort, that are known to be substrates, inducers or inhibitors of CYP3A4 within 30 days of the first dose administration
  • Pregnant or lactating
  • Any other clinically relevant abnormalities, concomitant diseases or ongoing medical conditions
05

Study design

Phase
Phase 1
Allocation
Non-randomized
Intervention model
Crossover assignment
Masking
None (open label)
Enrollment
12 participants (actual)

Study arms

  • Other
    IV Midazolam Alone

    A single 1 milligram (mg) dose of IV Midazolam on Day 1.

    Drug: Midazolam, IV

  • Other
    Oral Midazolam Alone

    A single 5 mg oral dose of midazolam on Day 2.

    Drug: Midazolam, oral

  • Experimental
    RO5186582 Alone

    RO5186582 240 mg oral tablet twice daily (BID) for 14 days from Days 3 to 16.

    Drug: RO5186582

  • Experimental
    RO5186582 Plus IV Midazolam

    RO5186582 240 mg BID oral tablet in combination with a single 1 mg IV dose of midazolam on Day 17.

    Drug: Midazolam, IV · Drug: RO5186582

  • Experimental
    RO5186582 Plus Oral Midazolam

    RO5186582 240 mg BID in combination with a single 5 mg oral dose of midazolam on Day 18.

    Drug: Midazolam, oral · Drug: RO5186582

Interventions

  • DrugMidazolam, IV

    2 milligrams per milliliter (mg/mL) midazolam solution for IV administration. For a 1 mg dose, the midazolam solution (0.5 mL of 2 mg/mL) will be injected at 2 milligrams per minute (mg/min).

  • DrugMidazolam, oral

    0.1 mg/mL midazolam for oral administration. For a 5 mg dose, participants will receive 50 mL of 0.1 mg/mL midazolam.

  • DrugRO5186582

    RO5186582 120 mg film-coated release tablet.

06

What researchers measure

Primary outcomes

  1. Bioavailability of Drug (F) for Oral Midazolam

    Time frame: Pre-dose [-0.5 hour (h)] and 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, 10 and 14 h post-dose (pd) on Day (D) 2 and 18, and 22 h pd on D3 and 19

  2. Total Plasma Clearence (CL) for IV Midazolam

    Time frame: Pre-dose [-10 minutes (min)] and 0.08 (5 min), 0.25 (15 min), 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10 and 14 h pd on D1 and D17, and 22 h pd on D2 and D18

  3. Apparent Volume of Distribution at Steady-State (Vss) for IV Midazolam

    Time frame: Pre-dose (-10 min) and 0.08 (5 min), 0.25 (15 min), 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10 and 14 h pd on D1 and D17, and 22 h pd on D2 and D18

  4. Maximum Observed Plasma Concentration (Cmax) for Oral Midazolam

    Time frame: Pre-dose (-0.5 h) and 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, 10 and 14 h pd on D2 and 18, and 22 h pd on D3 and D19

Secondary outcomes

  1. Apparent Volume of Distribution (V/F) for Oral Midazolam

    Time frame: Pre-dose (-0.5 h) and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10 and 14 h pd on D2 and D18, and 22 h pd on D3 and D19

  2. Area Under the Plasma Concentration Time Curve from Time Zero to Time Tau, Where Tau is the Dosing Interval (AUC0-tau) for RO5186582 and RO5271857 (metabolite of RO5186582)

    Time frame: D18: Pre-dose -0.17 h (10 min) and 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, 10 and 12 h pd

  3. Cmax for RO5186582 and RO5271857 (metabolite of RO5186582)

    Time frame: Pre-dose (10 min) and 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, 10 and 12 h pd on D18 (timepoints relative to oral midazolam dosing are (- 2 h 10 min), -1.5, -1, -0.5, 0 h pre-dose and 1, 2, 3, 4, 6, 8, and 10 h pd)

  4. Tmax for RO5186582 and RO5271857 (metabolite of RO5186582)

    Time frame: Pre-dose (10 min) and 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, 10 and 12 h pd on D18 (timepoints relative to oral midazolam dosing are (- 2 h 10 min), -1.5, -1, -0.5, 0 h pre-dose and 1, 2, 3, 4, 6, 8, and 10 h pd)

  5. Metabolic Ratio Based on AUC0-inf for IV Midazolam

    Time frame: Pre-dose (-10 min) and 0.08 (5 min), 0.25 (15 min), 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10 and 14 h pd on D1 and D17, and 22 h pd on D2 and D18

  6. Change From Baseline in Event-Related Potential (ERP) parameters Using Oddball Auditory

    Time frame: D-1 (Baseline) and D16 at 1 and 4 h pd, time-matched to planned time, and D2 and D8 at 1 and 4 h pd

  7. Change from Baseline in Electroencephalogram (EEG) Parameters

    Time frame: D-1 (Baseline) and D16 at 1 and 4 h pd, time-matched to planned time, and D2 and D8 at 1 and 4 h pd

  8. Change From Baseline in Saccadic Eye Movement (SEM) Parameters

    Time frame: D-1 (Baseline) and D16 at 1 h pd, time-matched to planned time, and D2 and D18 at 1 h pd

  9. Change From Baseline in Attention and Memory of Selected Domains of Repeatable Battery for the Assessment of Neuropyschological Status (RBANSTM)

    Time frame: D-1 (Baseline) and D16 at 2 and 5 h pd, time-matched to planned time, and D2 and D18 at 2 and 5 h pd

  10. Change from Baseline in Concentration of 4 Beta-Hydroxy Cholesterol

    Time frame: D1 (Baseline) and D17

  11. Area Under the Plasma Concentration Time Curve from Zero to Infinity (AUC0-inf) for Oral and IV Midazolam

    Time frame: Midazolam (MDZ)-oral: pre-dose (-0.5 h) and 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, 10 and 14 h pd on D2 and 18, and 22 h pd on D3 and 19; MDZ-IV: Pre-dose (-10 min) and 5, 15 min, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10 and 14 h pd on D1 and 17, and 22 h pd on D2 and 18

  12. Cmax for IV Midazolam

    Time frame: Pre-dose (-10 min) and 5, 15 min, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10 and 14 h pd on D1 and 17, and 22 h pd on D2 and 18

  13. Area Under the Plasma Concentration Time Curve from Zero to Last Measurable Concentration (AUC[0-last]) for Oral and IV Midazolam

    Time frame: MDZ-oral: pre-dose (-0.5 h) and 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, 10 and 14 h pd on D2 and 18, and 22 h pd on D3 and 19; MDZ-IV: Pre-dose (-10 min) and 5, 15 min, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10 and 14 h pd on D1 and 17, and 22 h pd on D2 and 18

  14. Time to Maximum Observed Concentration (Tmax) for Oral and IV Midazolam

    Time frame: MDZ-oral: pre-dose (-0.5 h) and 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, 10 and 14 h pd on D2 and 18, and 22 h pd on D3 and 19; MDZ-IV: Pre-dose (-10 min) and 5, 15 min, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10 and 14 h pd on D1 and 17, and 22 h pd on D2 and 18

  15. Terminal Elimination Half-Life (t1/2) for Oral and IV Midazolam

    Time frame: MDZ-oral: pre-dose (-0.5 h) and 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, 10 and 14 h pd on D2 and 18, and 22 h pd on D3 and 19; MDZ-IV: Pre-dose (-10 min) and 5, 15 min, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10 and 14 h pd on D1 and 17, and 22 h pd on D2 and 18

  16. Apparent Clearence (CL/F) for Oral Midazolam

    Time frame: Pre-dose (-0.5 h) and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10 and 14 h pd on D2 and D18, and 22 h pd on D3 and D19

07

Study locations

1 site
  • Leeds, LS2 9LH, United Kingdom
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 2, 2016, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT02254759
Lead sponsor
Hoffmann-La Roche
Responsible party
Sponsor
First posted
Oct 2, 2014
Start date
Oct 2014
Primary completion
Nov 2014
Completion
Nov 2014
Last update
Nov 2, 2016

Study contacts

Clinical Trials
study director · Hoffmann-La Roche
View the source record on ClinicalTrials.gov ↗

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