1
|
Tanimura K, Takeda T, Kataoka N, Yoshimura A, Nakanishi K, Yamanaka Y, Yoshioka H, Honda R, Uryu K, Fukui M, Chihara Y, Takei S, Kawachi H, Yamada T, Tamiya N, Okura N, Yamada T, Murai J, Shiotsu S, Kurata T, Takayama K. First-Line Chemoimmunotherapy versus Sequential Platinum-Based Chemotherapy Followed by Immunotherapy in Patients with Non-Small Cell Lung Cancer with ≤49% Programmed Death-Ligand 1 Expression: A Real-World Multicenter Retrospective Study. Cancers (Basel) 2023; 15:4988. [PMID: 37894357 PMCID: PMC10605814 DOI: 10.3390/cancers15204988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 10/11/2023] [Accepted: 10/13/2023] [Indexed: 10/29/2023] Open
Abstract
BACKGROUND The long overall survival (OS) observed among patients with non-small cell lung cancer (NSCLC) with high programmed death-ligand 1 (PD-L1) expression in chemoimmunotherapy (CIT) groups in previous phase III trials suggests the limited efficacy of CIT among the subgroup with ≤49% PD-L1 expression on tumor cells. Hence, sequential treatment with first-line platinum-based chemotherapy followed by second-line immune checkpoint inhibitor treatment (SEQ) is an option. This study examined whether first-line CIT would provide better outcomes than SEQ in patients with advanced NSCLC with ≤49% PD-L1 expression. METHODS This retrospective study evaluated patients with untreated NSCLC who received first-line CIT or SEQ at nine hospitals in Japan. OS, progression-free survival (PFS), PFS-2 (the time from first-line treatment to progression to second-line treatment or death), and other related outcomes were evaluated between the CIT and SEQ groups. RESULTS Among the 305 enrolled patients, 234 eligible patients were analyzed: 165 in the CIT group and 69 in the SEQ group. The COX proportional hazards model suggested a significant interaction between PD-L1 expression and OS (p = 0.006). OS in the CIT group was significantly longer than that in the SEQ group in the 1-49% PD-L1 expression subgroup but not in the <1% PD-L1 expression subgroup. Among the subgroup with 1-49% PD-L1 expression, the CIT group exhibited longer median PFS than the SEQ group (CIT: 9.3 months (95% CI: 6.7-14.8) vs. SEQ:5.5 months (95% CI: 4.5-6.1); p < 0.001), while the median PFS in the CIT group was not statistically longer than the median PFS-2 in the SEQ group (p = 0.586). There was no significant difference between the median PFS in the CIT and SEQ groups among the <1% PD-L1 expression subgroup (p = 0.883); the median PFS-2 in the SEQ group was significantly longer than the median PFS in the CIT group (10.5 months (95% CI: 5.9-15.3) vs. 6.4 months (95% CI: 4.9-7.5); p = 0.024). CONCLUSIONS CIT is recommended for patients with NSCLC with 1-49% PD-L1 expression because it significantly improved OS and PFS compared to SEQ. CIT had limited benefits in patients with <1% PD-L1 expression, and the median PFS-2 in the SEQ group was significantly longer than the median PFS in the CIT group. These findings will help physicians select the most suitable treatment option for patients with NSCLC, considering PD-L1 expressions.
Collapse
Affiliation(s)
- Keiko Tanimura
- Department of Respiratory Medicine, Japanese Red Cross Kyoto Daini Hospital, Kyoto 602-8026, Japan; (K.T.); (N.K.); (A.Y.)
| | - Takayuki Takeda
- Department of Respiratory Medicine, Japanese Red Cross Kyoto Daini Hospital, Kyoto 602-8026, Japan; (K.T.); (N.K.); (A.Y.)
| | - Nobutaka Kataoka
- Department of Respiratory Medicine, Japanese Red Cross Kyoto Daini Hospital, Kyoto 602-8026, Japan; (K.T.); (N.K.); (A.Y.)
| | - Akihiro Yoshimura
- Department of Respiratory Medicine, Japanese Red Cross Kyoto Daini Hospital, Kyoto 602-8026, Japan; (K.T.); (N.K.); (A.Y.)
| | - Kentaro Nakanishi
- Department of Thoracic Oncology, Kansai Medical University Hospital, Hirakata 573-1191, Japan; (K.N.); (Y.Y.); (H.Y.); (T.K.)
| | - Yuta Yamanaka
- Department of Thoracic Oncology, Kansai Medical University Hospital, Hirakata 573-1191, Japan; (K.N.); (Y.Y.); (H.Y.); (T.K.)
| | - Hiroshige Yoshioka
- Department of Thoracic Oncology, Kansai Medical University Hospital, Hirakata 573-1191, Japan; (K.N.); (Y.Y.); (H.Y.); (T.K.)
| | - Ryoichi Honda
- Department of Respiratory Medicine, Asahi General Hospital, Asahi 289-2511, Japan;
| | - Kiyoaki Uryu
- Department of Respiratory Medicine, Yao Tokushukai General Hospital, Yao 581-0011, Japan;
| | - Mototaka Fukui
- Department of Respiratory Medicine, Uji-Tokushukai Medical Center, Uji 611-0041, Japan; (M.F.); (Y.C.)
| | - Yusuke Chihara
- Department of Respiratory Medicine, Uji-Tokushukai Medical Center, Uji 611-0041, Japan; (M.F.); (Y.C.)
| | - Shota Takei
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan; (S.T.); (H.K.); (T.Y.); (K.T.)
| | - Hayato Kawachi
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan; (S.T.); (H.K.); (T.Y.); (K.T.)
| | - Tadaaki Yamada
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan; (S.T.); (H.K.); (T.Y.); (K.T.)
| | - Nobuyo Tamiya
- Department of Respiratory Medicine, Rakuwakai Otowa Hospital, Kyoto 607-8062, Japan;
| | - Naoko Okura
- Department of Respiratory Medicine, Matsushita Memorial Hospital, Moriguchi 570-8540, Japan; (N.O.); (T.Y.)
| | - Takahiro Yamada
- Department of Respiratory Medicine, Matsushita Memorial Hospital, Moriguchi 570-8540, Japan; (N.O.); (T.Y.)
| | - Junji Murai
- Department of Respiratory Medicine, Japanese Red Cross Kyoto Daiichi Hospital, Kyoto 605-0981, Japan; (J.M.); (S.S.)
| | - Shinsuke Shiotsu
- Department of Respiratory Medicine, Japanese Red Cross Kyoto Daiichi Hospital, Kyoto 605-0981, Japan; (J.M.); (S.S.)
| | - Takayasu Kurata
- Department of Thoracic Oncology, Kansai Medical University Hospital, Hirakata 573-1191, Japan; (K.N.); (Y.Y.); (H.Y.); (T.K.)
| | - Koichi Takayama
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan; (S.T.); (H.K.); (T.Y.); (K.T.)
| |
Collapse
|