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Life sciences · Interventional Study
ClinicalTrials.gov · October 9, 2026
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Interventional Study.
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Registry record from ClinicalTrials.gov (NCT07796295). This is a study registration, not published results. Lead sponsor: University of Oxford. Recruitment status: NOT_YET_RECRUITING. Phase: NA. Study type: INTERVENTIONAL. Enrollment: 2142 participants (ESTIMATED). Conditions: Major Depressive Disorder (MDD). Interventions: OTHER: PRADA Tool; OTHER: PETRUSHKA Tool. Primary outcome measures: All-cause treatment discontinuation , Baseline to week 8. Brief summary: Depression is a common mental health problem affecting almost 300 million people worldwide. Antidepressants are recommended as one of the first line treatments for people with moderate-to-severe symptoms of depression. In our recent trial, PETRUSHKA, on the acute treatment of depression, we demonstrated that the PETRUSHKA Tool, an evidence-based shared decision support system to personalise antidepressant treatment, in comparison with usual care reduced by almost 40% the number of participants stopping their antidepressant early, also improving their depression and anxiety symptoms. To identify the best treatment for each individual, the PETRUSHKA Tool used clinical and demographic predictors. Pilot data show that genetic information can aid stratification of people experiencing depression and better target their treatment. Genetic data can be collected using low-cost DNA-sequencing technology in diverse clinical settings and low-resource environments. Hence, we hypothesised that individual-level pharmacogenomic information can further personalise antidepressant treatment. In this project called PRADA ("Prescribing the Right Agent for Depression in Adults"), we will develop and test in a global trial across Ethiopia, Pakistan and the UK, an evidence-based multimodal web-tool to help participants and clinicians choose the best pharmacological treatment for depression jointly, based on participant preferences and their individual clinical, demographic, cultural, and also genetic profile (PRADA Tool). We will compare the new tool with the PETRUSHKA Tool in a blind fashion, measuring adherence to antidepressant treatment, clinical response and quality of life over a 12-month follow-up.