This article has been reviewed according to Science X's editorial process and policies. Editors have highlighted the following attributes while ensuring the content's credibility:

fact-checked

trusted source

proofread

Pre- and post-surgical immunotherapy improves outcomes for patients with operable lung cancer

cancer
Credit: Pixabay/CC0 Public Domain

Compared with pre-surgical (neoadjuvant) chemotherapy alone, adding perioperative immunotherapy—given before and after surgery—significantly improved event-free survival (EFS) in patients with resectable early-stage non-small cell lung cancer (NSCLC). Results from the Phase III CheckMate 77T study were presented today at the 2023 European Society for Medical Oncology (ESMO) Congress by researchers from The University of Texas MD Anderson Cancer Center.

At a median follow-up of 25.4 months, the median EFS with chemotherapy alone was 18.4 months, while the median had not yet been reached for patients receiving perioperative nivolumab, meaning EFS was prolonged significantly over the control group. These results correspond to a 42% reduction in risk of disease progression, recurrence, or death for those receiving the perioperative combination.

Patients who received the perioperative nivolumab-based regimen also saw significantly higher rates of pathological complete response (pCR), defined as no tumor remaining at surgery, compared with those who received chemotherapy alone (25.3% vs. 4.7%). Rates of major pathological response (MPR), less than or equal to 10% of viable tumor cells remaining at time of surgery, were also higher in patients who received perioperative immunotherapy (35.4% vs. 12.1%).

"This study builds on the standard-of-care treatment and supports perioperative nivolumab as an effective approach that reduces the risk of lung cancer relapse," said principal investigator Tina Cascone, M.D., Ph.D., associate professor of Thoracic/Head & Neck Medical Oncology. "These findings add to evidence that the perioperative immunotherapy path gives patients with operable lung cancer an opportunity to live longer without their cancer returning."

Roughly 30% of patients diagnosed with NSCLC have operable disease, meaning their tumor can be removed by a surgical operation. While many of these patients can be potentially cured by surgery, more than half will experience cancer recurrence without additional therapy. Chemotherapy given either before or after surgery provides only a minimal survival benefit.

The randomized, double-blind CheckMate 77T trial, which began in 2019, included more than 450 NSCLC patients over the age of 18 from around the globe. Participants were randomized to treatment with either neoadjuvant nivolumab with chemotherapy followed by surgery and adjuvant nivolumab, or and placebo followed by surgery and adjuvant placebo

The data showed no new safety signals with the perioperative nivolumab regimen and is consistent with the known safety profiles of individual agents. Grade 3-4 treatment-related side effects were observed in 32% and 25% of patients receiving the perioperative combination or control therapy, respectively. Surgery-related adverse events occurred in 12% of patients in both treatment arms.

These findings add to recent success seen with neoadjuvant nivolumab plus in NSCLC. In March 2022, the Phase III CheckMate 816 study led to FDA approval of combined with .

"I am enthusiastic about the initial findings of the study," Cascone said. "Looking ahead, it will be critical to identify patient and disease characteristics that will tell us who can potentially be cured with neoadjuvant immunotherapy only and who will benefit from more intensified treatment strategies."

Citation: Pre- and post-surgical immunotherapy improves outcomes for patients with operable lung cancer (2023, October 22) retrieved 2 March 2024 from https://medicalxpress.com/news/2023-10-pre-post-surgical-immunotherapy-outcomes-patients.html
This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.

Explore further

Adding immunotherapy to chemotherapy regimen improves survival in metastatic bladder cancer patients, trial shows

33 shares

Feedback to editors