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J. Clin. Med. 2019, 8(4), 471; https://doi.org/10.3390/jcm8040471

The More You Take It, the Better It Works: Six-Month Results of a Nalmefene Phase-IV Trial

1
Addictive Behaviors Unit, Clinic Hospital, University of Barcelona, Barcelona 08036, Spain
2
Psychiatry Service. University of Salamanca Health Care Complex, Institute of Biomedicine. University of Salamanca, Salamanca 37007, Spain
3
Addictive Behavior Unit, Psychiatry Department, Hospital de la Santa Creu i Sant Pau Barcelona, Barcelona 08041, Spain
4
Addictive Behaviors Unit, Germanes Hospitalàries, Sant Boi, Barcelona 08830, Spain
*
Author to whom correspondence should be addressed.
Received: 19 February 2019 / Revised: 23 March 2019 / Accepted: 3 April 2019 / Published: 6 April 2019
(This article belongs to the Special Issue Assessment & Treatment of Addictions: New Tools for Old Problems)
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Abstract

Background: Alcohol use disorders remain a major health problem. Reduced drinking has been increasingly recognized as a valuable alternative to abstinence. Nalmefene has shown in previous, experimental studies to be a useful tool to aid reduced drinking. However, more data from routine practice settings are needed in order to obtain evidence with high external validity. The aim of this study was to conduct a single-arm phase-IV study with alcohol-dependent outpatients starting with nalmefene for the first time. Here, we present the main effectiveness analysis, scheduled at six months. Methods: This was an observational, multisite, single-arm, phase-IV study conducted among adult alcohol-dependent outpatients who received nalmefene for the first time. The study consisted of four visits: Baseline, 1 month, 6 months, and 12 months. At each visit, drinking variables were obtained from the time-line follow-back regarding the previous month. Satisfaction with medication was also assessed from both patients and professionals with the Medication Satisfaction Questionnaire. A repeated measures mixed model was performed for effective analysis regarding drinking outcomes (reduction in total alcohol consumption and the number of heavy drinking days). Regression analyses were performed in order to find predictors of responses to nalmefene. Results: From a total of 110 patients included, 63 reported data at the six-month visit. On average, patients took nalmefene 69% of days during the month previous to the 6-month assessment. Compared to the one month results, the number of heavy drinking days and total alcohol consumption increased. Still, they were significantly lower than baseline values (outcome evolution over time was from 13.5 to 6.8 to 9.4 days/month, and from 169 to 79 to 116 units/month). A total of 23 patients were considered medication responders. The number of days of taking nalmefene was significantly associated in the regression analysis. Satisfaction was globally high for both professionals and patients and, overall, nalmefene was well-tolerated with no serious adverse events reported. Conclusion: The data provided by this phase-IV study suggest that nalmefene is an effective, well-tolerated treatment for alcohol-dependence in real world, clinical settings. View Full-Text
Keywords: drinking reduction; nalmefene; phase-IV trial; 6 months; observational drinking reduction; nalmefene; phase-IV trial; 6 months; observational
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Barrio, P.; Roncero, C.; Ortega, L.; Guardia, J.; Yuguero, L.; Gual, A. The More You Take It, the Better It Works: Six-Month Results of a Nalmefene Phase-IV Trial. J. Clin. Med. 2019, 8, 471.

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