Efficacy and Safety of an Oral Growth Hormone Drug in the Treatment of Fibromyalgia

This study has been completed.
Sponsor:
Collaborator:
Merck Sharp & Dohme Corp.
Information provided by (Responsible Party):
Robert Bennett MD, Bennett, Robert, M.D.
ClinicalTrials.gov Identifier:
NCT00116129
First received: June 27, 2005
Last updated: August 2, 2012
Last verified: August 2012
  Purpose

This is a 24-week, randomized, double-blind, placebo-controlled, trial to evaluate the safety, tolerability and efficacy of an orally administered growth hormone stimulating drug, (code named MK-0677) in the treatment of female subjects with primary fibromyalgia. The basis for this study is the observation that many fibromyalgia patients are growth hormone deficient; an earlier study of injectable growth hormone had shown benefit in this population of fibromyalgia patients.


Condition Intervention Phase
Fibromyalgia
Drug: Ibutamoren Mesylate (MK-0677)
Phase 2

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Investigator)
Primary Purpose: Treatment
Official Title: A Randomized, Double-Blind, Placebo-Controlled Trial to Evaluate the Safety and Efficacy of MK-0677 25 mg in the Treatment of Primary Fibromyalgia

Resource links provided by NLM:


Further study details as provided by Bennett, Robert, M.D.:

Primary Outcome Measures:
  • MK-0677 25 mg is superior to placebo in reducing symptoms of fibromyalgia, as assessed by the Fibromyalgia Impact Questionnaire (FIQ) over a 24-week treatment period [ Time Frame: Six months ] [ Designated as safety issue: Yes ]
  • MK-0677 25 mg is generally safe and well tolerated in subjects with fibromyalgia [ Time Frame: Six months ] [ Designated as safety issue: Yes ]

Secondary Outcome Measures:
  • MK-0677 25 mg is superior to placebo in improving the subjects' global perception of change in fibromyalgia symptoms, as assessed by the Subjects' Global Impression of Change Questionnaire (PGIC) [ Time Frame: Six months ] [ Designated as safety issue: Yes ]
  • MK-0677 25 mg is superior to placebo in improving the subjects' quality of life, as assessed by the Quality of Life Questionnaire (QOL) [ Time Frame: Six months ] [ Designated as safety issue: Yes ]

Enrollment: 64
Study Start Date: July 2005
Study Completion Date: April 2008
Primary Completion Date: January 2008 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Placebo Comparator: Placebo
Placebo
Drug: Ibutamoren Mesylate (MK-0677)
Ibutamoren Mesylate 25 mg/day

Detailed Description:

This study examines whether MK-0677 treatment will improve symptoms of fibromyalgia (FM).

The rationale for this study is the observation that many fibromyalgia patients are growth hormone deficient in terms of low levels of IGF-1, and that improving IGF-1 levels with growth hormone injections has been shown to improve fibromyalgia symptoms.

MK-0677 is an orally administered growth hormone secretagogue manufactured by Merck & Co., Inc. that acts on the growth hormone secretagogue receptor in the anterior pituitary to stimulate the release of growth hormone. This pathway represents an additional regulation of growth hormone release from pituitary somatotrophs to that mediated by growth hormone releasing hormone (stimulating) and somatostatin (inhibitory). Both stimulatory pathways lead to a pulsatile release of growth hormone, with approximately 4 hour intervals between peak levels. This growth hormone secretion leads to a rapid and robust up regulation of IGF-1 levels by about 50 to 100% that can be maintained with chronic therapy at a dose of 25 mg/day.

The primary aims of this study are:

  1. To evaluate the efficacy of MK-0677 25 mg in primary fibromyalgia subjects over a 24-week treatment period, as assessed by the FIQ.
  2. To evaluate the safety and tolerability of MK-0677 25 mg in subjects with fibromyalgia.

The secondary aims of this study are to determine whether:

  1. MK-0677 25 mg is superior to placebo in reducing muscle tenderness, as assessed by the Fibromyalgia Myalgic Score (FMyS).
  2. MK-0677 25 mg is superior to placebo in improving the subjects' global perception of change in fibromyalgia symptoms, as assessed by the Subjects' Global Impression of Change Questionnaire (PGIC).
  3. MK-0677 25 mg is superior to placebo in improving the subjects' quality of life, as assessed by the Quality of Life Questionnaire (QOL).
  Eligibility

Ages Eligible for Study:   30 Years to 65 Years
Genders Eligible for Study:   Female
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Subjects will all be female primary fibromyalgia subjects who are 30 to 65 years of age, inclusive, and have a low age adjusted serum IGF-1 level.
  • All subjects will fulfill a diagnosis of fibromyalgia according to the classification criteria of the American College of Rheumatology (ACR).
  • All subjects will have an initial Fibromyalgia Impact Questionnaire (FIQ) score ≥ 40.
  • If subject is of childbearing potential and sexually active, she agrees to use effective barrier or appropriate oral contraception during the study. Subjects who are taking oral contraceptives must have done so for at least 2 months prior to entering the study.
  • Subject is not pregnant and is not nursing.
  • Patient has a normal screening breast exam. If screening breast exam is abnormal, but not suggestive of breast cancer, the patient must have had a normal mammogram within the last 6 months.
  • Subject has a normal screening stool hemoccult. If the screening stool hemoccult is abnormal, but likely due to hemorrhoids, the subject must have had a normal sigmoidoscopy within the last 2 years.
  • Subject is willing to discontinue using grapefruit juice for duration of study.
  • Subject is willing to be followed by telephone contact for 3 months after she has discontinued study and completed and returned the Fibromyalgia Impact Questionnaire, Patient Global Change score, Quality of Life score, Brief Pain Inventory and Beck Depression Questionnaire.

Exclusion Criteria:

  • Subject has an-ongoing, unresolved disability litigation.
  • Subject has diabetes or a significantly elevated random glucose at the Screening visit.
  • Subject has a current or past history of cardiovascular, pulmonary, neurological, endocrine or renal disease that would preclude involvement in an exercise program (specifically hypertension, a myocardial infarction within the last 6 months, chronic obstructive pulmonary disease [COPD], asthma, untreated hypothyroidism, severe depression with suicide risk, previous pituitary disease or surgery).
  • Subject has a history of angina or congestive heart failure with symptoms that occur at rest.
  • Subject has a history or current evidence of a psychotic disorder (e.g. schizophrenia), bipolar disorder or major depression, or substance abuse by DSM-IV criteria; severe depression, as evidenced by a Beck Depression score of ≥ 30.
  • Subject has history of neurological disorder other than fibromyalgia (e.g. epilepsy, stroke, neuropathy, neuropathic pain).
  • Subject has ongoing symptoms of carpal tunnel syndrome.
  • Subject has any other significant pain state, i.e. subject must have primary fibromyalgia.
  • Subject has a history of hepatitis or liver disease that has been active within the past 12 weeks.
  • Subject has cancer or a history of cancer within the past 2 years, or a history of cancer of more than 2 years ago and deemed to not be cured, or subject has ANY history of breast cancer. (NOTE: Subjects with a history of basal cell or squamous cell carcinoma of the skin treated more than 1 year ago and with no evidence of recurrence may participate.)
  • Subject has abnormal thyroid stimulating-hormone, or T4 concentrations.
  • Subject has a planned elective surgery during the study period.
  • Subject has a history of hypersensitivity or idiosyncratic reaction to more than 2 drug classes (by chemical classification).
  • Subject has abnormal Screening visit laboratory values.
  • Subject is using any of the following medications : heparin, ticlopidine, ginko (in subjects taking warfarin), oral steroids (>/= 7 days per month), chronic use of strong CYP3A4 inhibitors (HIV protease inhibitors, macrolide antibiotics and nefazodone), chronic use of CYP3A4 inducers (carbamazepine, phenytoin, rifampin, and St. John's Wort).

    p. Subject has received an investigational drug or device within 30 days of study entry.

  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT00116129

Locations
United States, Oregon
Oregon Health & Science University
Portland, Oregon, United States, 97239
Sponsors and Collaborators
Bennett, Robert, M.D.
Merck Sharp & Dohme Corp.
Investigators
Principal Investigator: Robert Bennett, MD Oregon Health and Science University
  More Information

Publications:
Responsible Party: Robert Bennett MD, Professor of Medicine OHSU, Bennett, Robert, M.D.
ClinicalTrials.gov Identifier: NCT00116129     History of Changes
Other Study ID Numbers: MK-0677/FM, IND 71,596
Study First Received: June 27, 2005
Last Updated: August 2, 2012
Health Authority: United States: Food and Drug Administration
United States: Institutional Review Board

Keywords provided by Bennett, Robert, M.D.:
Fibromyalgia
Treatment
Growth hormone
IGF-1
MK-0677
Oral growth hormone secretagogue

Additional relevant MeSH terms:
Fibromyalgia
Myofascial Pain Syndromes
Muscular Diseases
Musculoskeletal Diseases
Rheumatic Diseases
Neuromuscular Diseases
Nervous System Diseases
Hormones
Hormones, Hormone Substitutes, and Hormone Antagonists
Physiological Effects of Drugs
Pharmacologic Actions

ClinicalTrials.gov processed this record on September 16, 2014