Unknown

Dataset Information

0

The efficacy profiles of concurrent chemoradiotherapy with intensity-modulated radiotherapy followed by durvalumab in patients with unresectable stage III non-small cell lung cancer: A multicenter retrospective cohort study.


ABSTRACT:

Purpose

Intensity-modulated radiotherapy (IMRT) is currently used more commonly than 3-dimensional conformal radiation for definitive thoracic radiation. We examined the efficacy profiles of concurrent chemoradiotherapy (CCRT) with IMRT after durvalumab became clinically available.

Methods

We reviewed the clinical records of patients with stage III non-small cell lung cancer (NSCLC) treated with CCRT and IMRT at seven centers in Japan and investigated relapse and survival from May 2018 to December 2019. The primary endpoint of this report was progression-free survival (PFS).

Results

Among 107 patients enrolled in the study, 87 were sequentially administered durvalumab. From CCRT commencement, patients were followed up for a median period of 29.7 months. The median PFS at the end of the CCRT was 20.7 months. Among the 87 patients, 58 experienced disease relapses, of whom 36 (62.1 %) had distant metastases. Multivariate Cox regression analysis revealed that a favorable response to CCRT, a radiation dose ≥ 62 Gy, and stage IIIA NSCLC were associated with prolonged PFS (all P = 0.04). Multivariate logistic regression by landmark analysis revealed that mortality risk factors were durvalumab treatment duration ≤ 11.7 months, a lower maximum grade of immune-related adverse events, FEV1 < 2805 mL, and radiation dose < 62 Gy (P = 0.01, 0.01, 0.03, and 0.04, respectively).

Conclusions

In patients with NSCLC receiving CCRT using IMRT, long PFS was associated with a better response to CCRT, stage IIIA NSCLC, and an increased radiation dose. The duration of durvalumab consolidation also played an essential role in the survival of patients receiving CCRT with IMRT. (250 words).

SUBMITTER: Takeda Y 

PROVIDER: S-EPMC9440238 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature

altmetric image

Publications

The efficacy profiles of concurrent chemoradiotherapy with intensity-modulated radiotherapy followed by durvalumab in patients with unresectable stage III non-small cell lung cancer: A multicenter retrospective cohort study.

Takeda Yuichiro Y   Kusaba Yusaku Y   Tsukita Yoko Y   Uemura Yukari Y   Miyauchi Eisaku E   Yamamoto Takaya T   Mayahara Hiroshi H   Hata Akito A   Nakayama Hidetsugu H   Tanaka Satoshi S   Uchida Junji J   Usui Kazuhiro K   Toyoda Tatsuya T   Tamiya Motohiro M   Morimoto Masahiro M   Oya Yuko Y   Kodaira Takeshi T   Jingu Keiichi K   Sugiura Hisatoshi H  

Clinical and translational radiation oncology 20220823


<h4>Purpose</h4>Intensity-modulated radiotherapy (IMRT) is currently used more commonly than 3-dimensional conformal radiation for definitive thoracic radiation. We examined the efficacy profiles of concurrent chemoradiotherapy (CCRT) with IMRT after durvalumab became clinically available.<h4>Methods</h4>We reviewed the clinical records of patients with stage III non-small cell lung cancer (NSCLC) treated with CCRT and IMRT at seven centers in Japan and investigated relapse and survival from May  ...[more]

Similar Datasets

| S-EPMC10918565 | biostudies-literature
| S-EPMC6826542 | biostudies-literature
| S-EPMC5654154 | biostudies-literature
| S-EPMC8944024 | biostudies-literature
| S-EPMC7180558 | biostudies-literature
| S-EPMC8541274 | biostudies-literature
| S-EPMC5870479 | biostudies-literature
| S-EPMC8201542 | biostudies-literature
| S-EPMC7398223 | biostudies-literature
| S-EPMC10582526 | biostudies-literature