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Insomnia and Daytime Function in Osteoarthritis

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00530556
Recruitment Status : Completed
First Posted : September 17, 2007
Last Update Posted : February 17, 2012
Information provided by (Responsible Party):

Brief Summary:
To assess the efficacy and safety of zolpidem at doses up to 10 mg compared to placebo in patients with insomnia associated with osteoarthritis

Condition or disease Intervention/treatment Phase
Sleep Disorders Drug: zolpidem Phase 4

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 170 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double (Participant, Investigator)
Primary Purpose: Treatment
Official Title: Effect of Zolpidem vs Placebo on Insomnia and Daytime Function in Patients With Insomnia Associated With Osteoarthritis
Study Start Date : March 2003
Actual Primary Completion Date : June 2004
Actual Study Completion Date : June 2004

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Osteoarthritis

Primary Outcome Measures :
  1. Patient's Global Impression of Therapy of Insomnia

Secondary Outcome Measures :
  1. Clinical Global Impression of Insomnia,Sleep-related outcome measures from Morning Questionnaire, Daytime Functioning Life Event Questionnaire Pain Impact Questionnaire Use of rescue medications

Information from the National Library of Medicine

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Ages Eligible for Study:   45 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Patients that are male or female aged 45 years or older.
  • Patients having given their written informed consent prior to participating in the trial.
  • Patients who have had OA of the knee or hip for at least 6 months, as diagnosed using the American College of Rheumatology Classification Criteria for Osteoarthritis.
  • Patients who, based on historical data, developed insomnia together with or after development of arthritic symptoms and presently have difficulty in maintaining sleep or have non-restorative sleep for at least three months preceding study entry and have difficulties with daytime activities because of problems with sleeping.
  • Patients who, based on historical data, experience sleep disturbance at least 3 nights per week.
  • Patients must have a score of greater than 1 on the Likert Pain Scale within two weeks of study participation while taking pain medication
  • Patients must have been on a stable dosing regimen of analgesic/anti-inflammatory medication for one month prior to study entry and agree to maintain the dose throughout the study. Patient must agree not to exceed 4000 mg (i.e., 1000 mg acetaminophen, 4 times per day) as rescue medication in case of unexpected arthritis pain. Acetaminophen is the only rescue medication allowed in addition to the patient's stable dosing regimen.

Exclusion Criteria:

  • Female patients that are pregnant or are breast-feeding.
  • Patients with reproductive potential not implementing adequate contraceptive measures.
  • Patients with mental disorders or who cannot be relied upon to understand the trial requirements and comply with the treatment regimen.
  • Patients that are shift workers or have required a change in their regular sleep schedule by at least three hours within the last three months.
  • Patients that have been treated for insomnia within 2 years prior to the onset of osteoarthritis.
  • Patients that have a history of recurrent major depressive disorder over the last 3 years or any single episode of major depression over the last 2 years.
  • Patients having a history of seizures or other significant neurological diseases.
  • Patients with a history of myasthenia gravis.
  • Patients that have had serious head injury within the past 10 years.
  • Patients with insulin dependent diabetes poorly controlled in the opinion of the investigator.
  • Patients who have had a stroke or myocardial infarction in the 6 months before the screening visit.
  • Patients with unstable angina or severe heart failure.
  • Patients with a history of significant impairment of any organ system that could impair the ability of the patient to participate in the study.
  • Patients with abnormal clinical laboratory tests judged by the Investigator to require clinical intervention.
  • Patients that fail to complete at least 3 of 7 consecutive nights and days (day must follow night to be consecutive) on their Evening and Morning Questionnaires during the screening period and have not satisfied the following:

    1. scored 2 or greater on the Evening Questionnaire, AND
    2. Slept a total of less than 6 hours, as determined by:

a Wake Time after Sleep Onset of greater than 1 hour, and/or having time to fall asleep (sleep latency) of 45 minutes or greater.

  • Patients that have used any drug (e.g. beta-blockers, antihistamines) and subsequently reported significant CNS side effects.
  • Patients with a history of hypersensitivity/exaggerated drug response to sedative/hypnotic drugs (allergic or paradoxical), including zolpidem.
  • Patients with a history of sleep apnea or current signs/symptoms associated with sleep apnea
  • Patients with a history of symptoms compatible with diagnosis of periodic leg movement or restless legs syndrome.
  • Patients with a history of cancer within the last 5 years or that have suspected neoplastic disease (with the exception of nonmelanomatous skin cancer).
  • Patients that are taking any drugs of abuse or psychotropic drugs (including, but not limited to antidepressants, antipsychotics, or anxiolytics) or drugs with demonstrated effects on sleep-wake function (including, but not limited to herbal supplements, diphenhydramine, and theophylline).
  • Patients that have used over-the-counter sleep medication within seven days prior to study entry. Prescription sleep medications must have been discontinued at least 7-25 days prior to study entry, depending upon the half-life of the particular compound.
  • Patients who have taken investigational drugs within 30 days of the screening visit.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00530556

Sponsors and Collaborators
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Study Director: Clinical Sciences & Operations Sanofi
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Responsible Party: Sanofi Identifier: NCT00530556    
Other Study ID Numbers: L_8445
First Posted: September 17, 2007    Key Record Dates
Last Update Posted: February 17, 2012
Last Verified: February 2012
Additional relevant MeSH terms:
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Sleep Wake Disorders
Joint Diseases
Musculoskeletal Diseases
Rheumatic Diseases
Nervous System Diseases
Mental Disorders
Neurologic Manifestations
Sleep Aids, Pharmaceutical
Hypnotics and Sedatives
Central Nervous System Depressants
Physiological Effects of Drugs
GABA-A Receptor Agonists
GABA Agonists
GABA Agents
Neurotransmitter Agents
Molecular Mechanisms of Pharmacological Action