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Orlistat therapy in clozapine- and olanzapine-treated patients who are overweight or obese
ISRCTN ISRCTN65731856
ClinicalTrials.gov identifier
Public title Orlistat therapy in clozapine- and olanzapine-treated patients who are overweight or obese
Scientific title
Acronym N/A
Serial number at source 02T-134
Study hypothesis Orlistat is better then placebo in olanzapine- or clozapine-treated psychiatric patients who are overweight or obese.
Lay summary Not provided at time of registration
Ethics approval Ethics approval received from the Ethics Committee for Pediatrics, Adolescent Medicine and Psychiatry, Hospital District of Helsinki and Uusimaa on the 16th June 2002 (ref: 314/E7/02).
Study design Randomised controlled trial
Countries of recruitment Finland
Disease/condition/study domain Obesity
Participants - inclusion criteria Male or female in- or out-patients will be recruited if they:
1. Are aged 18 - 65 years
2. Have had a psychotic disorder which is currently under a reasonably good (according to the investigator’s judgement) control with on-going clozapine or olanzapine therapy i.e. a shift to another antipsychotic or augmentation with another psychotropic drug is not expected during at least the next several months
3. Have had an underlying psychotic disorder, the nature of which, requires prolonged antipsychotic medication i.e. discontinuation of antipsychotic medication is not expected during at least the next several months
4. Have a body mass index (BMI) of 28 - 43 kg/m^2
5. The patient has a level of understanding enabling reasonable cooperation with the investigator and likely able to comply with the study protocol, including dietary restrictions
6. Have given written informed consent
Participants - exclusion criteria At screening:
1. Previous exposure to orlistat
2. General contraindications to orlistat therapy e.g. chronic malabsorption syndrome or cholestasis
3. Current treatment with weight loss medications
4. Other than clozapine or olanzapine psychotropic or somatic medication known to either significantly increase or decrease body weight (e.g. some antipsychotics, antidepressants, mood stabilizers etc.) is not allowed. However, if necessary, such a medication can be continued, provided that both the medication and weight have remained stable during four weeks prior to enrolment.
5. Serious physical illness
6. Diabetes mellitus (DM), type I (patients with DM type II are not excluded)
7. History of substance addiction or abuse within less than or equal to 3 months prior to enrolment
8. Expected poor compliance with the study protocol and/or poor control of fat intake
9. For females of child-bearing potential: pregnancy, lactation, or inability or unwillingness to use medically acceptable contraception means during the study
10. Significant (greater than or equal to 1 kg) weight change within less than or equal to 4 weeks prior to enrolment
11. Polydipsia, bulimia, binge-eating, or other condition with rapid unexpected weight changes

At baseline (in addition to those at screening):
1. Clinically relevant abnormalities in the laboratory tests
2. Poor compliance at screening e.g. inaccurate intake of study drug (investigator’s decision)
Anticipated start date 01/01/2003
Anticipated end date 31/12/2004
Status of trial Completed
Patient information material
Target number of participants 80
Interventions Orlistat medication plus education about lifestyle habits
Primary outcome measure(s) Weight loss
Secondary outcome measure(s) 1. Number of responders (persons with weight loss of 5% or more)
2. BMI
3. Waist measurement
4. Lipids
Sources of funding The Stanley Medical Research Institute (SMRI) (USA)
Trial website
Publications 1. 2011 results in http://www.ncbi.nlm.nih.gov/pubmed/20816037
Contact name Dr  Grigori  Joffe
  Address Hospital of Kellokoski
  City/town Kellokoski
  Zip/Postcode 04500
  Country Finland
  Tel +358 (0)405 136500
  Fax +358 (0)927 163461
  Email grigori.joffe@hus.fi
Sponsor The Stanley Medical Research Institute (SMRI) (USA)
  Address 5430 Grosvenor Lane
Suite 200
  City/town Bethesda
  Zip/Postcode MD 20814-2142
  Country United States of America
  Tel +1 301 571 0760 ext. 119
  Fax +1 301 571 0769
  Email Herrerax@stanleyresearch.org
  Sponsor website: http://www.stanleyresearch.org
Date applied 19/09/2005
Last edited 04/07/2011
Date ISRCTN assigned 25/05/2006
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