A Phase III, Open-Label Study of Maintenance Lurbinectedin in Combination With Atezolizumab Compared With Atezolizumab in Participants With Extensive-Stage Small-Cell Lung Cancer

Summary

Study GO43104 is a Phase III, randomized, open-label, multicenter study of lurbinectedin in combination with atezolizumab compared with atezolizumab alone administered as maintenance therapy in participants with extensive-stage small-cell lung cancer (ES-SCLC) after first-line induction therapy with carboplatin, etoposide, and atezolizumab. The study consists of 2 phases: an induction phase and a maintenance phase. Participants need to have an ongoing response or stable disease per the Response Evaluation Criteria in Solid Tumor (RECIST) v1.1 criteria after completion of 4 cycles of carboplatin, etoposide, and atezolizumab induction treatment in order to be considered for eligibility screening for the maintenance phase. Eligible participants will be randomized in a 1:1 ratio to receive either lurbinectedin plus atezolizumab or atezolizumab in the maintenance phase.

Timeline

Start

2021-11-18

Primary completion

2024-07-29

Completion

2028-02-28

Publications

• Paz-Ares L, Borghaei H, Liu SV, Peters S, Herbst RS, Stencel K, Majem M, Sendur MAN, Czyzewicz G, Caro RB, Lee KH, Johnson ML, Karadurmus N, Grohe C, Baka S, Csoszi T, Ahn JS, Califano R, Yang TY, Kemal Y, Ballinger M, Cuchelkar V, Graupner V, Lin YC, Chakrabarti D, Bhatt K, Cai G, Iannone R, Reck M; IMforte investigators. Efficacy and safety of first-line maintenance therapy with lurbinectedin plus atezolizumab in extensive-stage small-cell lung cancer (IMforte): a randomised, multicentre, open-label, phase 3 trial. Lancet. 2025 Jun 14;405(10495):2129-2143. doi: 10.1016/S0140-6736(25)01011-6. Epub 2025 Jun 2.

Drugs

Indications