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Completed

NCT Number: NCT00977197

A Placebo-Controlled Trial of Pregabalin (Lyrica) for Irritable Bowel Syndrome

This study is being done to see if Lyrica helps people with irritable bowel syndrome.

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Key information

Conditions

Irritable Bowel Syndrome Colonic Diseases Colonic Diseases, Functional Digestive System Diseases Gastrointestinal Diseases Intestinal Diseases

Age range

18 year–70 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 2

Primary location

Mayo Clinic, Rochester, Minnesota, United States

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About this study

Lyrica is the trade name for pregabalin, which was first approved by the FDA in June 2005 and has been available through prescription since fall 2005, and is marketed by Pfizer. Lyrica is known to have clinical efficacy treating pain disorders including irritable bowel syndrome-related conditions such as fibromyalgia.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Established diagnosis of Irritable Bowel Syndrome (IBS)
  • Experience pain with relief with defecation
  • 50/100 or greater of pain or discomfort scores during the two-week baseline period
  • At least three pain attacks in a month, with at least three episodes of pain intensity equal to or exceeding 50/100
  • U.S. resident
  • English-speaking (able to provide consent and complete questionnaires)
  • Able to participate in all aspects of the study

Exclusion criteria

  • Known alternative/concurrent gastrointestinal diagnosis (e.g. Crohn's disease, ulcerative colitis, microscopic colitis, active celiac sprue, chronic pancreatitis or pancreatic insufficiency, scleroderma, chronic intestinal pseudo-obstruction, bacterial overgrowth, recent (<6 months) intestinal bacterial/protozoal/ parasitic infections, HIV, active pelvic floor dysfunction, paraplegia or quadriplegia);
  • Current symptoms of severe depression, as measured by Hospital Anxiety and Depression Scale (HADS) score (greater or less than 15);
  • Mental retardation or any condition requiring a legal guardian;
  • Current or past history of psychotic disorder (schizophrenia, bipolar disorder)
  • Recent or current use (within past 30 days) of drugs that interact with Pregabalin:
  • Rosiglitazone (Avandia) or Pioglitazone (Actos)
  • Narcotic anti-pain medications (e.g. oxycodone, morphine)
  • Anti-anxiety medications (e.g. lorazepam, alprazolam, diazepam)
  • Unable to withdraw medications at least 72 hours prior to the study, because we will evaluate patient's response to pregabalin therapy for relief of IBS-associated pain and disturbed sleep.
  • Non-narcotic anti-pain medications (e.g. nonsteroidal antiinflammatory drug (NSAIDs), ultram, neurontin, etc.)
  • Mexiletine, steroids, dextromethorphan.
  • Insomnia medications (e.g. benzodiazepines, zolpidem, diphenhydramine, melatonin, etc.)
  • Planned surgery (especially transplant) or anesthesia exposure during trial
  • Are pregnant, lactating, likely to become pregnant during medication phase and not willing to use a reliable form of contraception (barrier contraceptives, diaphragm, injections, intrauterine device, surgical sterilization, or abstinence)
  • Recent or current use (within 30 days) of Pregabalin
  • Known allergy to Pregabalin
  • Significant acute or chronic progressive neurologic, hepatic, renal, cardiovascular, respiratory or metabolic disease
  • Recent history of alcohol or substance dependence use or abuse
  • Another household member or relative participating in the study
  • Professional drivers or operators of heavy machinery
  • Major cardiovascular events in the last 6 months
  • Use of IBS-specific drugs such as tegaserod (Zelnorm) and Lotronex (Alosetron) (within 30 days)
  • Participation in another clinical trial (within 30 days)

Treatment and study plan

Pregabalin

Drug

Dose: 75 mg twice a day for three days, increasing to 150 mg (2 tablets) twice a day for three days, escalating to 225 mg (three tablets) twice a day, through week 12, day 1. Days 2-4 of week 12, participants will begin tapering and will receive 150 mg (two tablets) two times a day and then days 5-7, participants will receive 75 mg two times a day for the duration of the study.

Other names: Lyrica

Placebo

Drug

A matching placebo will be administered twice a day

Primary outcomes

  1. Mean Pain Bowel Symptom Scale (BSS) Score Over Last 4 Weeks of Study (Weeks 9-12)

    Time frame: weeks 9-12

    The Bowel Symptom Scale (BSS) consists of 5 questions, each with a 100 mm long Visual Analog Scale (VAS). The questions are regarding pain, bloating, constipation, diarrhea, and overall severity of Irritable Bowel Syndrome (IBS) symptoms. The VAS does not have any pre-set marks between the extremes of 0 for not present and 100 mm for very severe symptoms. The investigator measures the mark made by the participant in mm and records this for the value.

Secondary outcomes

  1. Mean Overall Severity of Irritable Bowel Syndrome (IBS) Symptoms BSS Score Last 4 Weeks of the Study (Weeks 9-12)

    Time frame: weeks 9-12

    The Bowel Symptom Scale (BSS) consists of 5 questions, each with a 100 mm long Visual Analog Scale (VAS). The questions are regarding pain, bloating, constipation, diarrhea, and overall severity of Irritable Bowel Syndrome (IBS) symptoms. The VAS does not have any pre-set marks between the extremes of 0 for not present and 100 mm for very severe symptoms. The investigator measures the mark made by the participant in mm and records this for the value.

  2. Mean Constipation BSS Score Over Last 4 Weeks of Study (Weeks 9-12)

    Time frame: Weeks 9-12

    The Bowel Symptom Scale (BSS) consists of 5 questions, each with a 100 mm long Visual Analog Scale (VAS). The questions are regarding pain, bloating, constipation, diarrhea, and overall severity of Irritable Bowel Syndrome (IBS) symptoms. The VAS does not have any pre-set marks between the extremes of 0 for not present and 100 mm for very severe symptoms. The investigator measures the mark made by the participant in mm and records this for the value.

  3. Mean Diarrhea BSS Score Over the Last 4 Weeks of the Study (Weeks 9-12)

    Time frame: Weeks 9-12

    The Bowel Symptom Scale (BSS) consists of 5 questions, each with a 100 mm long Visual Analog Scale (VAS). The questions are regarding pain, bloating, constipation, diarrhea, and overall severity of Irritable Bowel Syndrome (IBS) symptoms. The VAS does not have any pre-set marks between the extremes of 0 for not present and 100 mm for very severe symptoms. The investigator measures the mark made by the participant in mm and records this for the value.

  4. Mean Bloating BSS Score Over the Last 4 Weeks of the Study (Weeks 9-12)

    Time frame: Weeks 9-12)

    The Bowel Symptom Scale (BSS) consists of 5 questions, each with a 100 mm long Visual Analog Scale (VAS). The questions are regarding pain, bloating, constipation, diarrhea, and overall severity of Irritable Bowel Syndrome (IBS) symptoms. The VAS does not have any pre-set marks between the extremes of 0 for not present and 100 mm for very severe symptoms. The investigator measures the mark made by the participant in mm and records this for the value.

  5. Number of Subjects With Adequate Relief of IBS Symptoms at Least 50% of the Last 4 Weeks of Therapy

    Time frame: Weeks 9-12

    One of the weekly questions asked of subjects was, "Did you have adequate relief of your IBS symptoms over the last week?" Possible answers were Yes or No.

  6. Mean Pain BSS Score at Week 12

    Time frame: Week 12

    The Bowel Symptom Scale (BSS) consists of 5 questions, each with a 100 mm long Visual Analog Scale (VAS). The questions are regarding pain, bloating, constipation, diarrhea, and overall severity of Irritable Bowel Syndrome (IBS) symptoms. The VAS does not have any pre-set marks between the extremes of 0 for not present and 100 mm for very severe symptoms. The investigator measures the mark made by the participant in mm and records this for the value.

  7. Mean Overall Severity BSS Score at Week 12

    Time frame: Week 12

    The Bowel Symptom Scale (BSS) consists of 5 questions, each with a 100 mm long Visual Analog Scale (VAS). The questions are regarding pain, bloating, constipation, diarrhea, and overall severity of Irritable Bowel Syndrome (IBS) symptoms. The VAS does not have any pre-set marks between the extremes of 0 for not present and 100 mm for very severe symptoms. The investigator measures the mark made by the participant in mm and records this for the value.

  8. Mean Constipation BSS Score at Week 12

    Time frame: Week 12

    The Bowel Symptom Scale (BSS) consists of 5 questions, each with a 100 mm long Visual Analog Scale (VAS). The questions are regarding pain, bloating, constipation, diarrhea, and overall severity of Irritable Bowel Syndrome (IBS) symptoms. The VAS does not have any pre-set marks between the extremes of 0 for not present and 100 mm for very severe symptoms. The investigator measures the mark made by the participant in mm and records this for the value.

  9. Mean Diarrhea BSS Score at Week 12

    Time frame: Week 12

    The Bowel Symptom Scale (BSS) consists of 5 questions, each with a 100 mm long Visual Analog Scale (VAS). The questions are regarding pain, bloating, constipation, diarrhea, and overall severity of Irritable Bowel Syndrome (IBS) symptoms. The VAS does not have any pre-set marks between the extremes of 0 for not present and 100 mm for very severe symptoms. The investigator measures the mark made by the participant in mm and records this for the value.

  10. Mean Bloating BSS Score at Week 12

    Time frame: Week 12

    The Bowel Symptom Scale (BSS) consists of 5 questions, each with a 100 mm long Visual Analog Scale (VAS). The questions are regarding pain, bloating, constipation, diarrhea, and overall severity of Irritable Bowel Syndrome (IBS) symptoms. The VAS does not have any pre-set marks between the extremes of 0 for not present and 100 mm for very severe symptoms. The investigator measures the mark made by the participant in mm and records this for the value.

  11. Number of Subjects With Greater Than or Equal to a 30 Point Change in Pain BSS Score

    Time frame: baseline, week 12

    The Bowel Symptom Scale (BSS) consists of 5 questions, each with a 100 mm long Visual Analog Scale (VAS). The questions are regarding pain, bloating, constipation, diarrhea, and overall severity of Irritable Bowel Syndrome (IBS) symptoms. The VAS does not have any pre-set marks between the extremes of 0 for not present and 100 mm for very severe symptoms. The investigator measures the mark made by the participant in mm and records this for the value.

Sponsors and collaborators

Lead sponsor

Mayo Clinic

Other

Collaborators

  • Pfizer

Registry information

Important dates

Study start
2010
Primary completion
2015
Study completion
2015
First posted
Sep 15, 2009
Registry last updated
Oct 28, 2016

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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