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Pharmacokinetic Interaction Study to Assess the Effect of Repeat Doses of Rifampin on Mirabegron (YM178) in Healthy Volunteers

A Phase 1, Open-Label, Drug Interaction Study to Evaluate the Effect of Repeat Doses of Rifampin on the Single-Dose Pharmacokinetics of Mirabegron (YM178)

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00776516
Enrollment
24
Registered
2008-10-21
Start date
2008-10-31
Completion date
2008-12-31
Last updated
2013-07-03

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

Conditions

Pharmacokinetics of YM178

Keywords

Healthy volunteer subjects, CYP3A4 inducer, rifampin, drug interaction, pharmacokinetics, YM178, mirabegron

Brief summary

The objective of the study is to assess the PK, safety and tolerability of a single dose of mirabegron alone and in combination with repeat doses of rifampin, a potent CYP3A4 inducer.

Detailed description

A single group of patients will receive both mirabegron alone and in combination with rifampin

Interventions

DRUGmirabegron

oral

DRUGrifampin

oral

Sponsors

Astellas Pharma Inc
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Masking
NONE

Eligibility

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

Inclusion criteria

* Weighs at least 45 kg and body mass index (BMI) between 18 and 32 kg/m2 at Screening * Normal or not clinically significant 12 lead ECG and clinical laboratory test results at Screening * Female subjects must be post-menopausal, surgically sterile since at least 1 month prior to screening, or practicing effective non-hormonal contraceptive methods. All females must be non-lactating, and should have a negative result for the pregnancy test at Screening and on Day -1 * Negative drug and alcohol screens

Exclusion criteria

* Has known or suspected hypersensitivity to mirabegron or rifampin * Liver enzyme test abnormalities (ALT, AST, or bilirubin) above the upper limit of normal * History or presence of psychiatric illness, serious active or recurrent infection or hepatitis * Previous history of cancer other than basal cell carcinoma or Stage 1 squamous cell carcinoma that has not been in remission for at least 5 years prior to the dose of study drug * Donation or loss of ≥ 450 mL blood within 56 days prior to study drug administration or has donated plasma within 7 days prior to study drug administration * Received or is anticipated to receive a prescription drug within 14 days prior to Day -1 or within 30 days prior to Day -1 for any long acting treatments. Use of any over-the-counter medications, including complementary and alternative medicines (except for occasional use of acetaminophen of up to 2000 mg/day but not more than 4 days per week) within 14 days prior to Day -1 * History of substance abuse within 6 months prior to Screening * Current participation in another clinical trial or is taking or has been taking an investigational drug in the 30 days or 10 half lives of the drug, whichever is longer, prior to dosing * Known to have hepatitis or HIV-1 and/or HIV-2 or is positive for hepatitis A antibody IgM, hepatitis B surface antigen (HBsAg), hepatitis C virus (HCV) antibody at Screening * Subject has consumed alcohol, caffeine-containing food or beverages, grapefruit juice, grapefruit-containing products or Seville oranges within 48 prior to Day -1

Design outcomes

Primary

MeasureTime frame
Assess pharmacokinetics of mirabegron alone and in combination with rifampinOne month

Secondary

MeasureTime frame
Assess safety and tolerability of mirabegron alone and in combination with rifampinone month

Countries

United States

Outcome results

None listed

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