Pharmacopsychiatry 2008; 41(6): 240-241
DOI: 10.1055/s-0028-1083817
Original Paper

© Georg Thieme Verlag KG Stuttgart · New York

Quality of Reporting Controlled Clinical Trials on Treatment of the Acute Mania Phase of Bipolar Disorder with New Antipsychotic Drugs

B. Arbaizar 1 , I. Gómez-Acebo 2 , 3 , J. Llorca 2 , 3
  • 1Hospital de Laredo, Cantabria, Spain
  • 2Division of Epidemiology and Computational Biology, University of Cantabria, Santander, Spain
  • 3CIBER Epidemiología y Salud Pública (CIBERESP), Spain
Further Information

Publication History

received 09.01.2008 revised 28.04.2008

accepted 19.05.2008

Publication Date:
09 December 2008 (online)

Abstract

The main goal in this paper is to describe how articles on clinical trials on atypical antipsychotic drugs in bipolar disorder reported their design. 25 controlled clinical trials were identified. Data were extracted on the general characteristics of the studies, including sources of funding, study design, and ethical issues. Most trials adequately report design issues such as patient selection, randomization, and flow of patients. However, only 8 of 25 studies reported pre-estimation of sample size; 22 articles claimed a double-blind design, but only 3 reported details on how blinding was performed; 17 trials failed to explicitly adhere to the Declaration of Helsinki.

References

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  • 2 Freiman JA, Chalmers TC, Smith  H. et al . The importance of beta, the type II error and sample size in the design and interpretation of the randomized control trial. Survey of 71 “negative” trials.  N Engl J Med. 1978;  299 690-694
  • 3 Gentile S. Extrapyramidal adverse events associated with atypical antipsychotic treatment of bipolar disorder.  J Clin Psychopharmacol. 2007;  27 35-45
  • 4 Quiñones D, Llorca J, Dierssen T. et al . Quality of published clinical trials on asthma.  J Asthma. 2003;  40 709-719
  • 5 Thornley B, Adams C. Content and quality of 2000 controlled trials in schizophrenia over 50 years.  BMJ. 1998;  317 1181-1184
  • 6 World Medical Association Declaration of Helsinki . Ethical principles for medical research involving human subjects. http://www.wma.net/e/policy/b3.htm , (visited on December 20, 2007)

Correspondence

J. LlorcaPhD 

Facultad de Medicina

Avda. Cardenal Herrera Oria s/n

39011 Santander

Spain

Phone: +34/94/220 19 93

Fax: +34/94/220 19 03

Email: llorcaj@unican.es