Randomized clinical trial of Cognitive Remediation Therapy with Work Therapy in the early phase of substance use disorder recovery for older Veterans: 12-Month follow-up

•Conditions did not differ significantly (77% vs. 62% recovery) but were much higher than expected.•Hours of CRT during the training period was associated with better SUD outcomes at 12 months.•Comparison with TAU group of matched participants found highly significant recovery differences (27%).•Hours of WT during training was also associated with better SUD outcomes.•CRT may have some effect on SUD outcomes but WT appears to have a large and sustained effect.