PMID- 37651087 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20231217 IS - 2509-4254 (Electronic) IS - 2509-4262 (Print) IS - 2509-4262 (Linking) VI - 7 IP - 6 DP - 2023 Nov TI - Retrospective Comparison of Survival Projections for CAR T-Cell Therapies in Large B-Cell Lymphoma. PG - 941-950 LID - 10.1007/s41669-023-00435-w [doi] AB - BACKGROUND: Durable remission has been observed in patients with relapsed or refractory (R/R) large B-cell lymphoma (LBCL) treated with chimeric antigen receptor (CAR) T-cell therapy. Consequently, hazard functions for overall survival (OS) are often complex, requiring the use of flexible methods for extrapolations. OBJECTIVES: We aimed to retrospectively compare the predictive accuracy of different survival extrapolation methods and evaluate the validity of goodness-of-fit (GOF) criteria-based model selection for CAR T-cell therapies in R/R LBCL. METHODS: OS data were sourced from JULIET, ZUMA-1, and TRANSCEND NHL 001. Standard parametric, mixture cure, cubic spline, and mixture models were fit to multiple database locks (DBLs), with varying follow-up durations. GOF was assessed using the Akaike information criterion and Bayesian information criterion. Predictive accuracy was calculated as the mean absolute error (MAE) relative to OS observed in the most mature DBL. RESULTS: For all studies, mixture cure and cubic spline models provided the best predictive accuracy for the least mature DBL (MAE 0.013‒0.085 and 0.014‒0.128, respectively). The predictive accuracy of the standard parametric and mixture models showed larger variation (MAE 0.024‒0.162 and 0.013‒0.176, respectively). With increasing data maturity, the predictive accuracy of standard parametric models remained poor. Correlation between GOF criteria and predictive accuracy was low, particularly for the least mature DBL. CONCLUSIONS: Our analyses demonstrated that mixture cure and cubic spline models provide the most accurate survival extrapolations of CAR T-cell therapies in LBCL. Furthermore, GOF should not be the only criteria used when selecting the optimal survival model. CI - (c) 2023. The Author(s). FAU - Peterse, Elisabeth F P AU - Peterse EFP AD - OPEN Health, Rotterdam, The Netherlands. FAU - Verburg-Baltussen, Elisabeth J M AU - Verburg-Baltussen EJM AD - OPEN Health, Rotterdam, The Netherlands. FAU - Stewart, Alexa AU - Stewart A AD - OPEN Health, Oxford, UK. FAU - Liu, Fei Fei AU - Liu FF AD - Bristol Myers Squibb, Princeton, NJ, USA. FAU - Parker, Christopher AU - Parker C AD - Bristol Myers Squibb, Uxbridge, UK. FAU - Treur, Maarten AU - Treur M AD - OPEN Health, Rotterdam, The Netherlands. FAU - Malcolm, Bill AU - Malcolm B AD - Bristol Myers Squibb, Uxbridge, UK. FAU - Klijn, Sven L AU - Klijn SL AD - Bristol Myers Squibb, Princeton, NJ, USA. sven.klijn@bms.com. LA - eng PT - Journal Article DEP - 20230831 PL - Switzerland TA - Pharmacoecon Open JT - PharmacoEconomics - open JID - 101700780 PMC - PMC10721757 COIS- Elisabeth F.P. Peterse, Elisabeth J.M. Verburg-Baltussen and Alexa Stewart were employees of OPEN Health at the time of this research. Maarten Treur is an employee of OPEN Health. OPEN Health received payment from Bristol Myers Squibb to conduct this study. Fei Fei Liu, Bill Malcolm, and Sven L. Klijn are employees and shareholders of Bristol Myers Squibb. Christopher Parker was an employee of and held stock in Bristol Myers Squibb at the time of this research. This study was sponsored by Bristol Myers Squibb. EDAT- 2023/08/31 12:43 MHDA- 2023/08/31 12:44 PMCR- 2023/08/31 CRDT- 2023/08/31 11:17 PHST- 2023/08/06 00:00 [accepted] PHST- 2023/08/31 12:44 [medline] PHST- 2023/08/31 12:43 [pubmed] PHST- 2023/08/31 11:17 [entrez] PHST- 2023/08/31 00:00 [pmc-release] AID - 10.1007/s41669-023-00435-w [pii] AID - 435 [pii] AID - 10.1007/s41669-023-00435-w [doi] PST - ppublish SO - Pharmacoecon Open. 2023 Nov;7(6):941-950. doi: 10.1007/s41669-023-00435-w. Epub 2023 Aug 31.