Dataset Information

Lobe-specific analysis of perioperative chemotherapy for non-small cell lung cancer patients.

ABSTRACT:

Objectives

Perioperative cisplatin-based chemotherapy decreases the risk of death over surgery alone and is a standard of care. Here, we examined perioperative chemotherapy indications for stage IB-III non-small cell lung cancer (NSCLC) patients according to lobe-specific analysis.

Methods

Resectable NSCLC patients with stage IB-III who received perioperative chemotherapy with and without radiotherapy after lung resection were identified from the SEER database. Propensity score matching (PSM) analysis was performed to reduce the inherent bias of retrospective studies. The Kaplan-Meier method and log-rank tests were used to assess the differences in overall survival (OS).

Results

The study enrolled 23,844 patients before PSM. The perioperative chemotherapy group had better OS than the nonperioperative chemotherapy group in stage IB-III NSCLC patients before and after PSM. However, subgroup analysis according to stage demonstrated that perioperative chemotherapy did not markedly benefit patients with stage IB. Furthermore, lobar subgroup analysis did not show survival advantages in primary tumors located in either the right middle lobe in stages II and III NSCLC or the right lower lobe in stage III NSCLC.

Conclusions

Lobe-specific perioperative chemotherapy is recommended in NSCLC patients. For stage IB NSCLC, right middle lobe NSCLC from stage IB-III and right lower lobe NSCLC from stage III, perioperative chemotherapy might not confer survival benefits.

SUBMITTER: Lei X

PROVIDER: S-EPMC10501251 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature

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Publications

Lobe-specific analysis of perioperative chemotherapy for non-small cell lung cancer patients.

Lei Xi X Li Tong T Mao Fuling F Ren Fan F Tang Quanying Q Cao Weibo W Zu Lingling L Xu Song S

Cancer medicine 20230705 16

<h4>Objectives</h4>Perioperative cisplatin-based chemotherapy decreases the risk of death over surgery alone and is a standard of care. Here, we examined perioperative chemotherapy indications for stage IB-III non-small cell lung cancer (NSCLC) patients according to lobe-specific analysis.<h4>Methods</h4>Resectable NSCLC patients with stage IB-III who received perioperative chemotherapy with and without radiotherapy after lung resection were identified from the SEER database. Propensity score ma ...[more]

PMID: 37403701

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Project description:ImportanceAdjuvant and neoadjuvant immunotherapy have improved clinical outcomes for patients with early-stage non-small cell lung cancer (NSCLC). However, the optimal combination of checkpoint inhibition with chemotherapy remains unknown.ObjectiveTo determine whether toripalimab in combination with platinum-based chemotherapy will improve event-free survival and major pathological response in patients with stage II or III resectable NSCLC compared with chemotherapy alone.Design, setting, and participantsThis randomized clinical trial enrolled patients with stage II or III resectable NSCLC (without EGFR or ALK alterations for nonsquamous NSCLC) from March 12, 2020, to June 19, 2023, at 50 participating hospitals in China. The data cutoff date for this interim analysis was November 30, 2022.InterventionsPatients were randomized in a 1:1 ratio to receive 240 mg of toripalimab or placebo once every 3 weeks combined with platinum-based chemotherapy for 3 cycles before surgery and 1 cycle after surgery, followed by toripalimab only (240 mg) or placebo once every 3 weeks for up to 13 cycles.Main outcomes and measuresThe primary outcomes were event-free survival (assessed by the investigators) and the major pathological response rate (assessed by blinded, independent pathological review). The secondary outcomes included the pathological complete response rate (assessed by blinded, independent pathological review) and adverse events.ResultsOf the 501 patients randomized, 404 had stage III NSCLC (202 in the toripalimab + chemotherapy group and 202 in the placebo + chemotherapy group) and 97 had stage II NSCLC and were excluded from this interim analysis. The median age was 62 years (IQR, 56-65 years), 92% of patients were male, and the median follow-up was 18.3 months (IQR, 12.7-22.5 months). For the primary outcome of event-free survival, the median length was not estimable (95% CI, 24.4 months-not estimable) in the toripalimab group compared with 15.1 months (95% CI, 10.6-21.9 months) in the placebo group (hazard ratio, 0.40 [95% CI, 0.28-0.57], P < .001). The major pathological response rate (another primary outcome) was 48.5% (95% CI, 41.4%-55.6%) in the toripalimab group compared with 8.4% (95% CI, 5.0%-13.1%) in the placebo group (between-group difference, 40.2% [95% CI, 32.2%-48.1%], P < .001). The pathological complete response rate (secondary outcome) was 24.8% (95% CI, 19.0%-31.3%) in the toripalimab group compared with 1.0% (95% CI, 0.1%-3.5%) in the placebo group (between-group difference, 23.7% [95% CI, 17.6%-29.8%]). The incidence of immune-related adverse events occurred more frequently in the toripalimab group. No unexpected treatment-related toxic effects were identified. The incidence of grade 3 or higher adverse events, fatal adverse events, and adverse events leading to discontinuation of treatment were comparable between the groups.Conclusions and relevanceThe addition of toripalimab to perioperative chemotherapy led to a significant improvement in event-free survival for patients with resectable stage III NSCLC and this treatment strategy had a manageable safety profile.Trial registrationClinicalTrials.gov Identifier: NCT04158440.

Dataset Information

Lobe-specific analysis of perioperative chemotherapy for non-small cell lung cancer patients.

Objectives

Methods

Results

Conclusions

Publications

Lobe-specific analysis of perioperative chemotherapy for non-small cell lung cancer patients.

Similar Datasets

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