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CompletedNCT00427596Updated Oct 7, 2008

A Two-Part Study to Determine: Best Medication Formulation and Food Effect

A Phase 1 interventional study of Solabegron in Overactive Bladder, sponsored by GlaxoSmithKline. Completed at 1 site in United States. Open to participants aged 18 Years to 80 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2008-10-07.

Sponsored by GlaxoSmithKline · Phase 1, Interventional, and Treatment

Phase
Phase 1
Study type
Interventional
Enrollment
18
Allocation
Randomized
Ages
18 Years to 80 Years
Sex
All
01

Study summary

This is a two-part study. Part 1 is designed to find the best modified release formulation of GW423753; Part 2 is designed to use the selected formulation(s) from Part 1 to find out if food affects the way the medication is processed by the body.

02

Conditions studied

  • Overactive Bladder

Keywords

  • GW427353 oral tablets,
  • healthy adult subjects,
  • food effect
03

In context

Urinary Bladder, Overactive

855 studies on the registry are indexed under Urinary Bladder, Overactive; 125 are open to participants now.

This study's enrollment of 18 is below the median of 72 across 652 interventional studies indexed under Urinary Bladder, Overactive.

Browse Urinary Bladder, Overactive studies →

Lead sponsor

GlaxoSmithKline is the lead sponsor of 3,562 studies on the registry; 117 are open to participants now.

Of its 258 completed or terminated interventional studies of FDA-regulated products, 232 (90%) have results posted.

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

04

Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Healthy males \& females
  • Part 1 ages 18-60
  • Part 2 ages 18-50 \& 65-80
  • Within normal weight range given your height
  • Negative urine drug and alcohol test
  • Willing to follow all study procedures

Exclusion criteria

Exclusion Criteria:

  • Any clinically relevant abnormality identified on the screening physical examination, clinical laboratory tests, 12-lead ECG, or any other medical condition or circumstance making the subject unsuitable for participation in the study based on the Investigator's assessment.
  • Subjects with either a blood pressure measurement > 150/90 mmHg, or a history of coronary disease AND a blood pressure > 140/90 mmHg, at screening.
  • History of drug or other allergy, which, in the opinion of the Investigator, contraindicates their participation.
  • Regular alcohol consumption averaging >/7 drinks/week for women or >/ 14 drinks/week for men (1 drink = 5 ounces of wine or 12 ounces of beer or 1.5 ounces of hard liquor) within 6 months of the first dose of study medication.
  • Positive urine drug, alcohol or serum pregnancy test at screening and prior to dosing in each study session.
  • Positive for hepatitis C antibody, hepatitis B surface antigen or HIV at screening.
  • Treatment with an investigational drug within 30 days or 5 half-lives (whichever is longer) prior to administration of study medication.
  • Use of prescription or non-prescription drugs within 7 days or 5 half-lives (whichever is longer) prior to administration of study medication and during the study. By exception, use of acetaminophen at doses of ≤ 2 grams per day, the use of contraceptives (oral, depots, patches, etc.) and anti-hypertensive medications will be permitted.
  • Use of vitamins or herbal/dietary supplements within 7 days prior to administration of study medication and during the study.
  • Subject is unable and/or unwilling to adhere to Lifestyle Guidelines
  • Subjects who have donated more than 500 mL of blood or plasma within 56 days prior to administration of study medication.
  • An unwillingness on the part of male volunteers to abstain from sexual intercourse with pregnant or lactating women; or an unwillingness to use a condom and another form of contraception (e.g., IUD, birth control pills taken by female partner, diaphragm with spermicide) if engaging in sexual intercourse with a woman who could become pregnant from the time of the first dose of study medication until completion of follow-up procedures.
  • Pregnant or lactating woman. A pregnancy test will be performed for all women at screening and prior to each dosing session to confirm eligibility.
  • The subject has a known hypersensitivity or idiosyncratic reaction to any drug chemical related to this study.
05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Crossover assignment
Masking
None (open label)
Enrollment
18 participants (actual)

Interventions

  • DrugSolabegron
06

What researchers measure

Primary outcomes

  1. Absorption rate of the tablet formulations as measured several times by blood draws (over 48-hour period) during the Part 1 under fed conditions and Part 2 under fed vs. fasted conditions

Secondary outcomes

  1. Toleration of the formulations after single and repeat doses (over 7-day period)

  2. Part 1: Safety and tolerability assessments will include data from spontaneous adverse event reporting, vital signs, 12-lead ECGs, physical examinations, and safety laboratory tests.

  3. Part 2: Safety and tolerability assessments will include data from spontaneous adverse event reporting, vital signs, 12-lead ECGs, physical examinations, and safety laboratory tests.

  4. Part 2: The secondary pharmacokinetic parameters will be the AUC, Cmax, Tmax, and T1/2 following repeat oral dosing of Solabegron, as the data permit.

07

Study locations

1 site
  • GSK Investigational Site
    Buffalo, New York 14209, United States
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 7, 2008, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT00427596
Lead sponsor
GlaxoSmithKline
First posted
Jan 29, 2007
Start date
Jan 2007
Primary completion
Aug 2007
Completion
Aug 2007
Last update
Oct 7, 2008

Study contacts

GSK Clinical Trials, MD, MSc
study director · GlaxoSmithKline
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Oct 2008. You cannot join it, but the record below documents what was studied.

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