Effectiveness of Diacetylmorphine versus Methadone for the

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					Effectiveness of Diacetylmorphine versus Methadone for the Treatment of Opioid
Dependence in Women


Background:
Research suggests gender is not a predictor of addiction treatment outcome; however, few
studies evaluate response by gender.


Methods:
NAO MI (North American Opioid Medication Initiative) was an open-label, phase III
randomized controlled trial, carried out between 2005 and 2008 in Vancouver and Montreal,
Canada. A total of 226 long-term treatment-re fractory opioid dependent individuals were
randomized to receive injectable diacetylmorphine or oral methadone for 12 months.
Injectable diacetylmorphine was self-administered under supervision in the treatment clinics
up to three times daily. Patients in both arms were offered psycho-social and primary care
services. Main outcomes were re tention in addiction treatment at 12 months. Drug use,
health, psychosocial adjustment and health-re lated quality of life at baseline and during
treatment, based on the European Addiction Severity Index, Maudsley Addiction Profile, SF-
6D and EuroQol EQ -5D.


Results:
Retention rates among female participants in diacetylmorphine group were significantly
higher than oral methadone (83.3% vs. 47.8%). Males receiving diacetylmorphine
improved significantly more than females in physical health, health related quality of life,
and family relations but female participants in the diacetylmorphine group had significantly
greater improvements in illicit drug use scores and psychological health compared than
females allocated to oral methadone.


Conclusions:
Among long-term opioid dependent individuals who have not benefited sufficiently from
available treatments, medically prescribed diacetylmorphine is more effective than oral
methadone for women as well as for men.

				
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posted:2/23/2011
language:English
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