Efficacy of Ramelteon in Subjects With Chronic Insomnia

This is an interventional treatment trial for Sleep Initiation and Maintenance Disorders focused on measuring Chronic Insomnia, DIMS (Disorders of Initiating and Maintaining Sleep), Disorders of Initiating and Maintaining Sleep, Insomnia Disorder Sleep Initiation Dysfunction, Transient Insomnia, Drug Therapy, Sleep Disorders, Intrinsic Read More

Inclusion Criteria

• Participant has participated in an allowed Ramelteon study and has completed all final visit procedures for the previous study within 21 days of the Treatment Initiation Visit for this study.
• 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.
• Investigator believes that participant requires long-term treatment for insomnia.
• Primary insomnia as defined by the Diagnostic and Statistical Manual of Mental Disorders, 4th Edition Revised for at least 3 months and a history of daytime complaint(s) associated with disturbed sleep.
• Subjective sleep latency greater than or equal to 45 minutes and a subjective total sleep time less than or equal to 6.5 hours per night for at least 3 nights during the week of the Baseline Lead-in Period.
• Habitual bedtime is between 8:30PM and 12:00AM.
• Body mass index between 18 and 34, inclusive.

Exclusion Criteria

• Known hypersensitivity to Ramelteon or related compounds, including melatonin.
• Participated in any other investigational study, and/or taken any investigational drug within 30 days or five half-lives prior to Day 1 of study medication, whichever is longer. The only exception to this is prior participation in an allowed Ramelteon study.
• Sleep schedule changes required by employment (eg, shift worker) within three months prior to Day 1 of study medication, or has flown across greater than three time zones within seven days prior to screening.
• Participated in a weight loss program or has substantially altered their exercise routine within 30 days prior to Day 1 of study medication.
• Ever had a history of seizures, sleep apnea, chronic obstructive pulmonary disease, restless leg syndrome, schizophrenia, bipolar disorder, mental retardation, or cognitive disorder.
• History of psychiatric disorder (including anxiety or depression) within the past 12 months.
• History of drug addiction or drug abuse with the past 12 months.
• History of alcohol abuse within the past 12 months, as defined in the Diagnostic and Statistical Manual of Mental Disorders, 4th Edition Revised and/or regularly consumes 4 or more alcoholic drinks per day.
• Current significant neurological, hepatic, renal, endocrine, cardiovascular, gastrointestinal, pulmonary, hematologic, or metabolic disease, unless currently controlled and stable with protocol-allowed medication 30 days prior to Day 1 of study medication.
• Uses tobacco products 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, or
  • not be in the best interest of the subject to participate in the study.
• Morning serum cortisol at the Baseline visit of less than 7.0 micro-g per dl.

• Is required to take or continues taking any disallowed medication, prescription medication, herbal treatment or over-the counter medication, including:

  • Anxiolytics
  • Hypnotics
  • Antidepressants
  • Anticonvulsants
  • Sedating H1 antihistamines
  • Systemic steroids
  • Respiratory stimulants (eg, theophylline)
  • Decongestants
  • Over-the-counter and prescription stimulants
  • Over-the-counter and prescription diet aids
  • Central nervous system active drugs
  • Narcotic analgesics
  • Beta blockers
  • St. John's Wort
  • Kava-kava
  • Gingko biloba
  • Melatonin