The Safety and Efficacy of Gefapixant (AF-219/MK-7264) in Female Participants With Interstitial Cystitis /Bladder Pain Syndrome (MK-7264-005)

NCT ID: NCT01569438

Last Updated: 2020-08-17

Study Results

Results available

Outcome measurements, participant flow, baseline characteristics, and adverse events have been published for this study.

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Basic Information

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Recruitment Status

TERMINATED

Clinical Phase

PHASE2

Total Enrollment

107 participants

Study Classification

INTERVENTIONAL

Study Start Date

2012-04-13

Study Completion Date

2014-05-14

Brief Summary

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The purpose of this study is to assess the efficacy of gefapixant (AF-219/MK-7264) in female participants with moderate to severe pain associated with interstitial cystitis/bladder pain syndrome (IC/BPS) after 4 weeks of treatment.

Detailed Description

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This study is a double-blind, placebo-controlled, randomized trial designed to assess the efficacy and safety of gefapixant in female participants with moderate to severe pain associated with IC/BPS. The study will consist of 4 phases: Screening, Baseline, Treatment, and Follow-up.

Conditions

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Bladder Pain Syndrome

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Investigators
Double Blind

Study Groups

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Gefapixant

Female participants receive gefapixant, a total dose titrated from 50 mg to highest tolerated dose (maximum of 300 mg) twice daily (BID), orally over a period of 6 days with food depending on safety and tolerability, and then maintain that dose for the course of a 4-week treatment period. Participants were allowed to decrease the dose if tolerability issues occurred.

Group Type EXPERIMENTAL

Gefapixant

Intervention Type DRUG

50 or 300 mg tablets for a total daily dose of 50, 100, 150, 200, 250 or 300 mg BID, orally with food for 4 weeks

Placebo

Female participants receive dose matched placebo tablets, BID, orally, with food for 4 weeks.

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Dose matched placebo tablets, BID, orally, with food for 4 weeks

Interventions

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Gefapixant

50 or 300 mg tablets for a total daily dose of 50, 100, 150, 200, 250 or 300 mg BID, orally with food for 4 weeks

Intervention Type DRUG

Placebo

Dose matched placebo tablets, BID, orally, with food for 4 weeks

Intervention Type DRUG

Other Intervention Names

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AF-219 MK-7264

Eligibility Criteria

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Inclusion Criteria

* Women
* Women of child bearing potential must not be pregnant during the study and must use two forms of birth control
* Clinical evidence of Interstitial Cystitis /Bladder Pain Syndrome (IC/BPS)
* Have provided written informed consent

Exclusion Criteria

* History of diseases that can be confused for IC/BPS
* Unable to void spontaneously
* Immunosuppressant, intravesicular, nerve stimulator or opioid treatment for certain periods prior to start of the study
* Changes to doses of Elmiron®, antidepressant, alpha-adrenergic antagonist, H1 antagonist, or anti-muscarinic treatment within a certain period prior to the start of the study
Minimum Eligible Age

18 Years

Maximum Eligible Age

80 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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Afferent Pharmaceuticals, Inc., a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA)

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Medical Director

Role: STUDY_DIRECTOR

Afferent Pharmaceuticals, Inc., a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA)

Locations

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Afferent Investigative Site

Glendale, Alabama, United States

Site Status

Afferent Investigative Site

Homewood, Alabama, United States

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Afferent Investigative Site

Mobile, Alabama, United States

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Afferent Investigative Site

Phoenix, Arizona, United States

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Afferent Investigative Site

Glendora, California, United States

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Afferent Investigative Site

Murrieta, California, United States

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Afferent Investigative Site

San Diego, California, United States

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Afferent Investigative Site

San Diego, California, United States

Site Status

Afferent Investigative Site

Farmington, Connecticut, United States

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Afferent Investigative Site

New Britain, Connecticut, United States

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Afferent Investigative Site

Boynton Beach, Florida, United States

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Afferent Investigative Site

Plantation, Florida, United States

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Afferent Investigative Site

Coeur d'Alene, Idaho, United States

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Afferent Investigative Site

Idaho Falls, Idaho, United States

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Afferent Investigative Site

Meridian, Idaho, United States

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Afferent Investigative Site

Shreveport, Louisiana, United States

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Afferent Investigative Site

Annapolis, Maryland, United States

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Afferent Investigative Site

Ann Arbor, Michigan, United States

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Afferent Investigative Site

Grand Rapids, Michigan, United States

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Afferent Investigative Site

Kalamazoo, Michigan, United States

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Afferent Investigative Site

Royal Oak, Michigan, United States

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Afferent Investigative Site

Voorhees Township, New Jersey, United States

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Afferent Investigative Site

Albuquerque, New Mexico, United States

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Afferent Investigative Site

Brooklyn, New York, United States

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Afferent Investigative Site

Hyde Park, New York, United States

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Afferent Investigative Site

Greenville, North Carolina, United States

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Afferent Investigative Site

Salisbury, North Carolina, United States

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Afferent Investigative Site

Winston-Salem, North Carolina, United States

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Afferent Investigative Site

Cincinnati, Ohio, United States

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Afferent Investigative Site

Cleveland, Ohio, United States

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Afferent Investigative Site

Tiffin, Ohio, United States

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Afferent Investigative Site

Zanesville, Ohio, United States

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Afferent Investigative Site

Bala-Cynwyd, Pennsylvania, United States

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Afferent Investigative Site

Lancaster, Pennsylvania, United States

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Afferent Investigative Site

Myrtle Beach, South Carolina, United States

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Afferent Investigative Site

Dallas, Texas, United States

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Afferent Investigative Site

Fort Worth, Texas, United States

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Afferent Investigative Site

Houston, Texas, United States

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Afferent Investigative Site

Irving, Texas, United States

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Afferent Investigative Site

Salt Lake City, Utah, United States

Site Status

Afferent Investigative Site

Virginia Beach, Virginia, United States

Site Status

Countries

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United States

References

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Imamura M, Scott NW, Wallace SA, Ogah JA, Ford AA, Dubos YA, Brazzelli M. Interventions for treating people with symptoms of bladder pain syndrome: a network meta-analysis. Cochrane Database Syst Rev. 2020 Jul 30;7(7):CD013325. doi: 10.1002/14651858.CD013325.pub2.

Reference Type DERIVED
PMID: 32734597 (View on PubMed)

Other Identifiers

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AF219-005

Identifier Type: OTHER

Identifier Source: secondary_id

MK-7264-005

Identifier Type: OTHER

Identifier Source: secondary_id

7264-005

Identifier Type: -

Identifier Source: org_study_id

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