PMID- 31254971 OWN - NLM STAT- MEDLINE DCOM- 20200708 LR - 20220417 IS - 1740-634X (Electronic) IS - 0893-133X (Print) IS - 0893-133X (Linking) VI - 44 IP - 13 DP - 2019 Dec TI - Results from a long-term open-label extension study of adjunctive buprenorphine/samidorphan combination in patients with major depressive disorder. PG - 2268-2276 LID - 10.1038/s41386-019-0451-3 [doi] AB - Buprenorphine/samidorphan (BUP/SAM; ALKS 5461) is an investigational opioid system modulator for the adjunctive treatment of patients with major depressive disorder (MDD), who did not respond adequately to prior antidepressant therapy (ADT). FORWARD-2, an open-label extension study, assessed long-term safety and tolerability of adjunctive BUP/SAM treatment in these patients. Patients from four short-term trials and de novo patients were enrolled; all had confirmed MDD and a current major depressive episode lasting 2-24 months. Patients were treated with an established ADT for >/=8 weeks before receiving sublingual, adjunctive BUP/SAM 2 mg/2 mg for up to 52 weeks. Safety (primary objective) was assessed via adverse events (AEs), the Columbia-Suicide Severity Rating Scale, and the Clinical Opiate Withdrawal Scale (COWS). Exploratory evaluation of efficacy was done using the Montgomery-Asberg Depression Rating Scale (MADRS). Of 1485 patients, 50% completed the study and 11% discontinued due to AEs. AEs of nausea, headache, constipation, dizziness, and somnolence, each occurred in >/=10% of patients. There was no evidence of increased suicidal ideation or behavior. Euphoria-related AEs were uncommon (1.2%). Following abrupt BUP/SAM discontinuation, "drug withdrawal" AEs were infrequent (0.4%), and the incidence of COWS categorical worsening after abrupt drug discontinuation was low (6.5%). Improvements in mean MADRS scores were maintained until study end, suggesting durability of antidepressant effect in patients continuing treatment. BUP/SAM was generally well tolerated, with a low risk of abuse and an AE profile consistent with those seen in placebo-controlled studies. Withdrawal reports were uncommon and of limited clinical impact. FAU - Thase, Michael E AU - Thase ME AD - Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania School of Medicine, 3535 Market Street, Suite 670, Philadelphia, PA, 19104-3309, USA. thase@mail.med.upenn.edu. FAU - Stanford, Arielle D AU - Stanford AD AD - Alkermes, Inc., Waltham, MA, USA. FAU - Memisoglu, Asli AU - Memisoglu A AD - Alkermes, Inc., Waltham, MA, USA. FAU - Martin, William AU - Martin W AUID- ORCID: 0000-0002-8740-9014 AD - Alkermes, Inc., Waltham, MA, USA. FAU - Claxton, Amy AU - Claxton A AD - Alkermes, Inc., Waltham, MA, USA. FAU - Bodkin, J Alexander AU - Bodkin JA AD - McLean Hospital, Belmont, MA, USA. AD - Harvard Medical School, Boston, MA, USA. FAU - Trivedi, Madhukar H AU - Trivedi MH AUID- ORCID: 0000-0002-2983-1110 AD - University of Texas Southwestern Medical Center, Dallas, TX, USA. FAU - Fava, Maurizio AU - Fava M AD - Harvard Medical School, Boston, MA, USA. AD - Massachusetts General Hospital, Boston, MA, USA. FAU - Yu, Miao AU - Yu M AD - Alkermes, Inc., Waltham, MA, USA. FAU - Pathak, Sanjeev AU - Pathak S AD - Alkermes, Inc., Waltham, MA, USA. LA - eng PT - Clinical Trial PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20190629 PL - England TA - Neuropsychopharmacology JT - Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology JID - 8904907 RN - 0 (Antidepressive Agents) RN - 40D3SCR4GZ (Buprenorphine) RN - 5S6W795CQM (Naltrexone) RN - 7W2581Z5L8 (3-carboxamido-4-hydroxynaltrexone) SB - IM MH - Adult MH - Antidepressive Agents/*therapeutic use MH - Buprenorphine/*therapeutic use MH - Depressive Disorder, Major/*drug therapy MH - Double-Blind Method MH - Drug Therapy, Combination MH - Female MH - Humans MH - Male MH - Middle Aged MH - Naltrexone/*analogs & derivatives/therapeutic use MH - Psychiatric Status Rating Scales MH - Treatment Outcome PMC - PMC6897901 EDAT- 2019/06/30 06:00 MHDA- 2020/07/09 06:00 PMCR- 2019/06/29 CRDT- 2019/06/30 06:00 PHST- 2019/01/30 00:00 [received] PHST- 2019/06/11 00:00 [accepted] PHST- 2019/05/22 00:00 [revised] PHST- 2019/06/30 06:00 [pubmed] PHST- 2020/07/09 06:00 [medline] PHST- 2019/06/30 06:00 [entrez] PHST- 2019/06/29 00:00 [pmc-release] AID - 10.1038/s41386-019-0451-3 [pii] AID - 451 [pii] AID - 10.1038/s41386-019-0451-3 [doi] PST - ppublish SO - Neuropsychopharmacology. 2019 Dec;44(13):2268-2276. doi: 10.1038/s41386-019-0451-3. Epub 2019 Jun 29.