Facilitation of Zolpidem (≥10 mg) Discontinuation Through Use of Ramelteon in Subjects With Chronic Insomnia

• Status: Completed
• Trial end date: 2008-05-01
• Target enrollment: 0
• Participant gender: All

Summary

The purpose of this study is to assess whether ramelteon, once daily (QD), can facilitate the discontinuation of zolpidem in subjects with chronic insomnia.

• Phase: Phase 4
• Accepts Healthy Volunteers?: No

Details

• Lead Sponsor: Takeda
• Treatments: Zolpidem

Criteria

Inclusion Criteria

• Chronic insomnia and taking greater than or equal to 10 mg zolpidem at least 4 times per week.

• Has been prescribed zolpidem for difficulty in initiating sleep.

• Must report chronic use of zolpidem greater than or equal to10 mg therapy for a minimum of 3 months prior to entry into Period 1 of the study.

• Must have taken zolpidem greater than or equal to 10 mg therapy for at least 4 of 7 days each week of the 4 weeks immediately prior to entry into the double blind phase, Period 2.

• Expressed a willingness to discontinue zolpidem therapy.

• Habitual bedtime is between 9:00 PM and 1:00 AM based on sleep history.

• Negative test result for hepatitis B surface antigen and hepatitis C virus antibody.

• 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.

Exclusion Criteria

• Known hypersensitivity to ramelteon, zolpidem, or melatonin.

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

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

• History of fibromyalgia, history of seizures, sleep apnea, restless leg syndrome, periodic leg syndrome, chronic obstructive pulmonary disease, schizophrenia, bipolar disorder, mental retardation, or cognitive disorder.

• 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, hematological, or metabolic disease, unless currently controlled and stable with protocol-allowed medication, within 30 days prior to the first night of run-in study medication.

• Body mass index of less than 18 or greater than 34 (weight /height2).

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

• Positive hepatitis panel.

• Known history of human immunodeficiency virus.

• Any additional conditions(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:

• Melatonin

• Anxiolytics

• Antipsychotics

• Over-the-counter and prescription sedatives

• Hypnotics (excluding zolpidem)

• Narcotic analgesics

• Antidepressants

• Beta-blockers (exception is that Atenolol is permissible)

• Anticonvulsants

• St. John's wort

• Sedating H1 antihistamines

• Kava-kava

• Systemic steroids

• Ginkgo-biloba

• Respiratory stimulants

• Over-the-counter and prescription diet aids

• Sedating Decongestants