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Efficacy of Ramelteon in Adults With Chronic Insomnia

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Takeda

Status and phase

Terminated
Phase 3

Conditions

Chronic Insomnia

Treatments

Drug: Placebo
Drug: Ramelteon

Study type

Interventional

Funder types

Industry

Identifiers

NCT00672724
U1111-1114-2738 (Registry Identifier)
01-04-TL-375-041

Details and patient eligibility

About

The purpose of this study is to evaluate subjectively reported treatment effects of ramelteon, once daily (QD), in adults with chronic insomnia.

Full description

Insomnia is characterized by difficulties initiating and maintaining sleep, or complaints of non-restorative and non-refreshing sleep. Transient insomnia affects approximately one-third to one-half of the US population, based on the results of 2 surveys of representative samples of the adult US population conducted by the Gallup Organization in which respondents were asked if they had "ever had difficulty sleeping." Based on reports of "regular" or "frequent" sleep difficulty, results from the same studies suggest that approximately one-tenth of the US population experiences chronic insomnia. The ideal treatment for insomnia would reduce the latency to onset of sleep and increase total sleep time, without a negative impact on sleep architecture and without safety concerns or next-day effects.

Ramelteon is under global development by Takeda Chemical Industries, Ltd., for the treatment of transient and chronic insomnia and for the treatment of Circadian Rhythm Sleep Disorders.

This study is being conducted to assess the treatment effects of ramelteon in adults through the use of daily entry of information into an interactive voice response system. Study participation in this study is anticipated to be about 1 month.

Enrollment

1,081 patients

Sex

All

Ages

18 to 64 years old

Volunteers

No Healthy Volunteers

Inclusion and exclusion criteria

Inclusion Criteria

  • Females of childbearing potential who are sexually active must agree to use adequate contraception, and can neither be pregnant nor lactating from Screening throughout the duration of the study.
  • Has had primary chronic insomnia as defined by Diagnostic and Statistical Manual of Mental Disorders, 4th Edition Revised for at least 3 months.
  • Reports a history of subjective sleep latency greater than or equal to 60 min and a subjective total sleep time less than 6.5 hours.
  • Habitual bedtime is between 10:00 PM and 1:00 AM.
  • Willing to have a fixed bedtime and agrees to go to bed within plus or minus 30 minutes of the habitual bedtime during the entire study.
  • Consistent access to a touch tone phone and are willing to complete telephone questionnaires twice daily during participation in the study.
  • Willing to remain in bed for at least 6.5 hours each night during the entire study.
  • Used pharmacological assistance to sleep 0-4 times per week in the last 3 months.
  • Must complete the morning questionnaire on at least 4 of the first 7 mornings after Screening Visit 1.
  • On at least 3 of the first 5 nights of single-blind placebo treatment, the subject must have a subjective sleep latency of greater than or equal to 45 minutes.
  • On at least 3 of the first 5 nights of single-blind placebo treatment, the subject must have a subjective total sleep time of less than 6.5 hours.

Exclusion Criteria

  • Known hypersensitivity to ramelteon or related compounds, including melatonin, and 5-hydroxytryptophan.

  • Participated in any other investigational study and/or took any investigational drug within 30 days prior to the first dose of single-blind study medication.

  • Sleep schedule changes required by employment (eg, shift worker) within 3 months prior to the first night of single-blind study medication.

  • Has flown across greater than 3 time zones within 7 days prior to screening, or will travel across 2 or more time zones during the course of the study.

  • Participated in a weight loss program or has substantially altered exercise routine within 30 days prior to the first night of singleblind study medication.

  • Ever had a history of seizures, sleep apnea, and/or chronic obstructive pulmonary disease.

  • History of psychiatric disorder within the past 6 months.

  • History of fibromyalgia.

  • History of drug addiction or drug abuse within the past 12 months.

  • History of alcohol abuse within the past 12 months, as defined in Diagnostic and Statistical Manual of Mental Disorders, 4th Edition Revised and/or regularly consumes more than 2 alcoholic drinks per day.

  • Current significant hepatic, renal, endocrine, cardiovascular, gastrointestinal, pulmonary, hematologic, or metabolic disease, unless currently controlled and stable with protocol-allowed medication, within 30 days prior to the first night of single-blind study medication.

  • Uses tobacco products or any other products that may interfere with the sleep wake cycle during nightly awakenings.

  • Any clinically important abnormal finding as determined by a medical history, physical examination, electrocardiogram, or clinical laboratory tests, as determined by the investigator.

  • Positive hepatitis panel.

  • Any additional condition(s) that in the Investigator's opinion would:

    • affect sleep/wake function
    • prohibit the subject from completing the study
    • indicate that continuation in the study would not be in the best interests of the subject.
  • Is required to take or continues taking any disallowed medication, prescription medication, herbal treatment or over-the counter medication, including:

    • Anxiolytics
    • Central nervous system active drugs
    • Hypnotics
    • Narcotic analgesics
    • Antidepressants
    • Beta blockers
    • Anticonvulsants
    • St. John's Wort
    • Sedating H1 antihistamines
    • Kava-kava
    • Systemic steroids
    • Ginkgo-biloba
    • Respiratory stimulants
    • Over-the-counter and prescriptions stimulants
    • Decongestants
    • Over-the-counter and prescription diet aids
    • Antipsychotics
    • Melatonin and all other drugs or supplements known to affect sleep/wake

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

Quadruple Blind

1,081 participants in 2 patient groups, including a placebo group

Ramelteon 8 mg QD
Experimental group
Treatment:
Drug: Ramelteon
Placebo
Placebo Comparator group
Treatment:
Drug: Placebo

Trial contacts and locations

43

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Data sourced from clinicaltrials.gov

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