Try our beta test site
IMPORTANT: Listing of a study on this site does not reflect endorsement by the National Institutes of Health. Talk with a trusted healthcare professional before volunteering for a study. Read more...

Ramelteon as an Adjunct Therapy in Non-Diabetic Patients With Schizophrenia

This study has been completed.
Information provided by (Responsible Party):
David C. Henderson, Massachusetts General Hospital Identifier:
First received: January 7, 2008
Last updated: August 14, 2012
Last verified: August 2012
Results First Received: April 26, 2012  
Study Type: Interventional
Study Design: Allocation: Randomized;   Intervention Model: Parallel Assignment;   Masking: Double Blind (Participant, Care Provider, Investigator, Outcomes Assessor);   Primary Purpose: Treatment
Conditions: Schizophrenia
Schizoaffective Disorder
Schizophreniform Disorders
Interventions: Drug: Ramelteon
Drug: Placebo

  Participant Flow
  Hide Participant Flow

Recruitment Details
Key information relevant to the recruitment process for the overall study, such as dates of the recruitment period and locations
Subjects were recruited from the Freedom Trial Clinic at the Erich Lindemann Mental Health Center and were studied at the Mallinckrodt General Clinical Research Center (GCRC) at the Massachusetts General Hospital (MGH), Boston

Pre-Assignment Details
Significant events and approaches for the overall study following participant enrollment, but prior to group assignment
After providing written informed consent, subjects underwent a diagnostic evaluation by a research psychiatrist using the Structured Clinical Interview for DSM-IV (SCID). All subjects were screened and enrolled based on eligibility criteria. Baseline study assessments were completed prior to intervention.

Reporting Groups
Ramelteon No text entered.
Placebo sugar pill

Participant Flow:   Overall Study
    Ramelteon   Placebo
STARTED   16   9 
COMPLETED   14   6 
Withdrawal by Subject                1                3 
Physician Decision                1                0 

  Baseline Characteristics
  Hide Baseline Characteristics

Population Description
Explanation of how the number of participants for analysis was determined. Includes whether analysis was per protocol, intention to treat, or another method. Also provides relevant details such as imputation technique, as appropriate.
No text entered.

Reporting Groups
Ramelteon No text entered.
Placebo sugar pill
Total Total of all reporting groups

Baseline Measures
   Ramelteon   Placebo   Total 
Overall Participants Analyzed 
[Units: Participants]
 14   6   20 
[Units: Participants]
<=18 years   0   0   0 
Between 18 and 65 years   14   6   20 
>=65 years   0   0   0 
[Units: Years]
Mean (Standard Deviation)
 49  (7)   56  (9)   53  (8) 
[Units: Participants]
Female   6   1   7 
Male   8   5   13 
Region of Enrollment 
[Units: Participants]
United States   14   6   20 

  Outcome Measures
  Show All Outcome Measures

1.  Primary:   Change in Waist Circumference   [ Time Frame: Baseline and Week 8 ]

2.  Primary:   Change in Insulin Resistance as Measured by the Homeostatic Model Assessment of Insulin Resistance (HOMA-IR).   [ Time Frame: Baseline and Week 8 ]

3.  Primary:   Change in Abdominal Fat (DEXA).   [ Time Frame: Baseline and Week 8 ]

  Serious Adverse Events

  Other Adverse Events

  Limitations and Caveats
  Hide Limitations and Caveats

Limitations of the study, such as early termination leading to small numbers of participants analyzed and technical problems with measurement leading to unreliable or uninterpretable data
The limitations of this study include the relatively small sample size and short intervention period (8 weeks).

  More Information
  Hide More Information

Certain Agreements:  
All Principal Investigators ARE employed by the organization sponsoring the study.

Results Point of Contact:  
Name/Title: David C. Henderson, M.D.
Organization: Massachusetts General Hospital
phone: 617-912-7800

Ritz R CJ: Indirect Calorimetry. Monitoring in Respiratory Care. St Louis, MO, Mosby-Yearbook, Inc, 1993

Responsible Party: David C. Henderson, Massachusetts General Hospital Identifier: NCT00595504     History of Changes
Other Study ID Numbers: 2007P-001929
Study First Received: January 7, 2008
Results First Received: April 26, 2012
Last Updated: August 14, 2012