Effectiveness of the Thinking Healthy Programme for perinatal depression delivered through peers: Pooled analysis of two randomized controlled trials in India and Pakistan

•We found consistent benefits of the Thinking Healthy Programme adapted for delivery by Peers (THPP) on maternal outcomes.•THPP resulted in 35% higher odds of remission at 6 months post-childbirth compared to enhanced usual care only.•We found beneficial intervention effects across a number of secondary outcomes, and in repeated measures analyses.•We have demonstrated feasibility and acceptability of this peer-delivered intervention, and external validity of our results.