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ABSTRACT: Background
Preclinical data have shown the immunomodulatory effects of metformin and dipeptidyl peptidase 4 (DPP4) inhibitors in patients with diabetes. However, its clinical impact remains unclear in lung cancer.Methods
Between 2017 and 2021, 466 patients received ICI monotherapy. Patients were categorized into concurrent (MET; metformin or combination of metformin and DPP4 inhibitor) and without concomitant (NMET; nonmetformin/DPP4 inhibitors) administration of metformin and DPP4 inhibitors groups at least 8 weeks before and during ICI therapy. The primary objectives were the objective response rate (ORR) and progression-free survival (PFS). The second objective was to evaluate the overall survival (OS) and the occurrence of immune-related adverse events (irAEs).Results
Among 466 patients, 89 (19.0%) and 377 (81%) were categorized into the MET and NMET groups, respectively. MET group had a significantly higher ORR (MET group: 24.7% vs. NMET group: 14.8%, p = 0.025) and longer PFS than those in the NMET group (MET group 5.1 month vs. NMET group 2.8 months, p = 0.018). After patients were stratified based on the prior line of therapy and PD L1 expression status, the PFS of the second-line therapy and PD L1 ≥50 was significantly higher in the MET than in the NMET group. The proportion of patients experiencing all-grade irAEs was numerically higher in the MET group (19.1%) than in the NMET group (14.3%), without statistical significance (p = 0.382).Conclusions
Concurrent use of metformin and DPP4 inhibitors with ICIs significantly improved the clinical outcomes without increasing the incidence of irAEs in NSCLC.
SUBMITTER: Yang J
PROVIDER: S-EPMC9807448 | biostudies-literature | 2023 Jan
REPOSITORIES: biostudies-literature
Yang Jieun J Kim Se Hyun SH Jung Eun Hee EH Kim Sang-A SA Suh Koung Jin KJ Lee Ji Yun JY Kim Ji-Won JW Kim Jin Won JW Lee Jeong-Ok JO Kim Yu Jung YJ Lee Keun-Wook KW Kim Jee Hyun JH Bang Soo-Mee SM Lee Jong Seok JS
Thoracic cancer 20221109 1
<h4>Background</h4>Preclinical data have shown the immunomodulatory effects of metformin and dipeptidyl peptidase 4 (DPP4) inhibitors in patients with diabetes. However, its clinical impact remains unclear in lung cancer.<h4>Methods</h4>Between 2017 and 2021, 466 patients received ICI monotherapy. Patients were categorized into concurrent (MET; metformin or combination of metformin and DPP4 inhibitor) and without concomitant (NMET; nonmetformin/DPP4 inhibitors) administration of metformin and DP ...[more]