Status:

COMPLETED

Study of Gabapentin Extended Release (G-ER) in the Treatment of Vasomotor (Hot Flashes/Hot Flushes) Symptoms in Postmenopausal Women

Lead Sponsor:

Depomed

Conditions:

Hot Flashes

Eligibility:

FEMALE

18-70 years

Phase:

PHASE3

Brief Summary

Depomed's Gabapentin Extended Release (G-ER) is an investigational, extended release formulation of gabapentin that is being studied for the treatment of hot flashes in postmenopausal women.

Detailed Description

The primary study objective is to assess the efficacy of G-ER dosed in either of the following regimens: * G-ER 1200 mg daily (single evening dose) * G-ER 1800 mg daily (dosed asymmetrically; 600 mg ...

Eligibility Criteria

Inclusion

  • Postmenopausal women aged 18 to 70 years experiencing ≥7 moderate to severe hot flashes per day (or ≥50 per week) accompanied by sweating during previous 30 days or longer.
  • Had amenorrhea for ≥12 months, amenorrhea for 6 to 12 months with serum follicle-stimulating hormone (FSH) levels \>40 mIU/mL, or was ≥6 weeks postsurgical bilateral oophorectomy with or without hysterectomy.
  • Willing to discontinue the following: vaginal hormonal products; transdermal or oral estrogen or estrogen/progestin combination; intrauterine progestin; progestin implants; injectable estrogen; topical progesterone cream.
  • Had to have daily average of ≥7 moderate to severe hot flashes and had to complete ≥4 days of diary entries during baseline week to be randomized.
  • If treated with antidepressants, could not have had any changes in drug doses during past month.
  • Other Inclusions apply.

Exclusion

  • Patient treated with a gonadotrophin releasing hormone agonist, anti-estrogens, or aromatase inhibitors within 2 months prior to study entry.
  • Patient treated with estrogen pellets or progestin injectable drugs within 6 months prior to study entry.
  • Patient experience only nighttime hot flashes or worked night shifts on a regular basis.
  • Patient was concurrently treated with gabapentin for other indications. If patient was using gabapentin for treatment of hot flashes, she could be screened after a 7-day washout period provided hot flashes returned.
  • Patient had previously experienced dose-limiting adverse events that prevented titration of gabapentin to an effective dose.
  • Patient had a hypersensitivity to gabapentin.
  • Patient was in an immunocompromised state.
  • Patient had a malignancy other than basal cell carcinoma within 2 years prior to study entry.
  • Patient had gastric reduction surgery, severe chronic diarrhea, chronic constipation, uncontrolled irritable bowel syndrome, uncontrolled inflammatory bowel disease, or unexplained weight loss.
  • Patient had clinically significant abnormal chemistry or hematology results, or calculated glomerular filtration rate \<60 mL/min.
  • Patient had history of substance abuse within year prior to study entry.
  • Patient was concurrently taking morphine.
  • Patient had history of chronic hepatitis B or C, hepatitis within 3 months prior to study entry, or history of human immunodeficiency virus.
  • Other Exclusions apply.

Key Trial Info

Start Date :

September 1 2008

Trial Type :

INTERVENTIONAL

Allocation :

ACTUAL

End Date :

October 1 2009

Estimated Enrollment :

541 Patients enrolled

Trial Details

Trial ID

NCT00755417

Start Date

September 1 2008

End Date

October 1 2009

Last Update

March 7 2012

Active Locations (45)

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Birmingham, Alabama, United States

2

Montgomery, Alabama, United States

3

Tempe, Arizona, United States

4

Tucson, Arizona, United States