Sforzini L, Worrell C, Kose M, Anderson IM, Aouizerate B, Arolt V, Bauer M, Baune BT, Blier P, Cleare AJ, Cowen PJ, Dinan TG, Fagiolini A, Ferrier IN, Hegerl U, Krystal AD, Leboyer M, McAllister-Williams RH, McIntyre RS, Meyer-Lindenberg A, Miller AH, Nemeroff CB, Normann C, Nutt D, Pallanti S, Pani L, Penninx BWJH, Schatzberg AF, Shelton RC, Yatham LN, Young AH, Zahn R, Aislaitner G, Butlen-Ducuing F, Fletcher C, Haberkamp M, Laughren T, Mäntylä FL, Schruers K, Thomson A, Arteaga-Henríquez G, Benedetti F, Cash-Gibson L, Chae WR, De Smedt H, Gold SM, Hoogendijk WJG, Mondragón VJ, Maron E, Martynowicz J, Melloni E, Otte C, Perez-Fuentes G, Poletti S, Schmidt ME, van de Ketterij E, Woo K, Flossbach Y, Ramos-Quiroga JA, Savitz AJ, Pariante CM.

Criteria for treatment-resistant depression (TRD) and partially responsive depression (PRD) as subtypes of major depressive disorder (MDD) are not unequivocally defined. In the present document we used a Delphi-method-based consensus approach to define TRD and PRD and to serve as operational criteria for future clinical studies, especially if conducted for regulatory purposes. We reviewed the literature and brought together a group of international experts (including clinicians, academics, researchers, employees of pharmaceutical companies, regulatory bodies representatives, and one person with lived experience) to evaluate the state-of-the-art and main controversies regarding the current classification. We then provided recommendations on how to design clinical trials, and on how to guide research in unmet needs and knowledge gaps. This report will feed into one of the main objectives of the EUropean Patient-cEntric clinicAl tRial pLatforms, Innovative Medicines Initiative (EU-PEARL, IMI) MDD project, to design a protocol for platform trials of new medications for TRD/PRD. 


Mol Psychiatry. 2021 Dec 15



Link to Pubmed