RT Journal Article SR Electronic T1 Efficacy of two interventions on the discontinuation of benzodiazepines in long-term users: 36-month follow-up of a cluster randomised trial in primary care JF British Journal of General Practice JO Br J Gen Pract FD British Journal of General Practice SP e85 OP e91 DO 10.3399/bjgp16X683485 VO 66 IS 643 A1 Caterina Vicens A1 Ermengol Sempere A1 Ferrán Bejarano A1 Isabel Socias A1 Catalina Mateu A1 Francisca Fiol A1 Vicente Palop A1 Marta Mengual A1 Silvia Folch A1 Guillem Lera A1 Josep Basora A1 Alfonso Leiva YR 2016 UL http://bjgp.org/content/66/643/e85.abstract AB Background Primary care interventions that promote cessation of benzodiazepine (BZD) use in long-term users are effective at 1 year, but their efficacy at 3 years is uncertain.Aim To assess the 3-year efficacy of two primary care interventions delivered by GPs on cessation of BZD use in long-term users.Design and setting Multicentre, three-arm, cluster randomised, controlled trial, with random allocation at the GP level.Method Seventy-five GPs and 532 patients were randomly allocated to three groups: usual care (control), structured intervention with stepped-dose reduction and follow-up visits (SIF), or structured intervention with written stepped-dose reduction (SIW). The primary outcome was BZD use at 36 months.Results At 36 months, 66/168 patients (39.2%) in the SIW group, 79/191 patients (41.3%) in the SIF group, and 45/173 patients (26.0%) in the control group had discontinued BZD use. The relative risks (RR) adjusted by cluster were 1.51 (95% CI = 1.10 to 2.05; P = 0.009) in the SIW group and 1.59 (95% CI = 1.15 to 2.19; P = 0.005) in the SIF group. A total of 131/188 patients (69.7%) who successfully discontinued BZD use at 12 months remained abstinent at 36 months. The groups showed no significant differences in anxiety, depression, or sleep dissatisfaction at 36 months.Conclusion The interventions were effective on cessation of BZD use; most patients who discontinued at 12 months remained abstinent at 3 years. Discontinuation of BZD use did not have a significant effect on anxiety, depression, or sleep quality.