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Combined Checkpoint Inhibition and Chemotherapy: New Era of 1st-Line Treatment for Non-Small-Cell Lung Cancer.

ABSTRACT: Platinum-based chemotherapy has long been the first-line treatment of choice for metastatic non-small-cell lung cancer (NSCLC) patients who lack targetable gene mutations. The arrival of checkpoint blockade has led to a vast shift in the treatment landscape of NSCLC. Among NSCLC patients with PD-L1 expression in ?50% of tumor cells, treatment with pembrolizumab leads to a superior progression-free and overall survival compared to platinum-doublet chemotherapy in the first-line setting. Furthermore, the addition of pembrolizumab to standard chemotherapy of pemetrexed and a platinum-based drug resulted in significant longer progression-free survival and overall survival irrespective to PD-L1 expression. In this review, we focus on the molecular rationale for the combination therapy and the results of completed clinical studies.

SUBMITTER: Wang C

PROVIDER: S-EPMC6444295 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature

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Combined Checkpoint Inhibition and Chemotherapy: New Era of 1<sup>st</sup>-Line Treatment for Non-Small-Cell Lung Cancer.

Wang Chongkai C Kulkarni Prakash P Salgia Ravi R

Molecular therapy oncolytics 20190319

Platinum-based chemotherapy has long been the first-line treatment of choice for metastatic non-small-cell lung cancer (NSCLC) patients who lack targetable gene mutations. The arrival of checkpoint blockade has led to a vast shift in the treatment landscape of NSCLC. Among NSCLC patients with PD-L1 expression in ≥50% of tumor cells, treatment with pembrolizumab leads to a superior progression-free and overall survival compared to platinum-doublet chemotherapy in the first-line setting. Furthermo ...[more]

PMID: 30976658

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Project description:BackgroundImmune checkpoint inhibitors (ICIs) are increasingly used as first-line therapy for patients with advanced non-small cell lung cancer (NSCLC) harboring no actionable mutations; however, data on their efficacy among patients presenting with intracranial lesions are limited. This study aimed to explore the efficacy and safety of ICIs combined with chemotherapy in advanced NSCLC patients with measurable brain metastasis at initial diagnosis.MethodsOur study retrospectively analyzed clinical data of a total of 211 patients diagnosed with driver gene mutation-negative advanced NSCLC with measurable, asymptomatic brain metastasis at baseline from Hunan Cancer Hospital between January 1, 2019 and September 30, 2021. The patients were stratified into two groups according to the first-line treatment regimen received: ICI combined with chemotherapy ( n = 102) or chemotherapy ( n = 109). Systemic and intracranial objective response rates (ORRs) and progression-free survival (PFS) were analyzed. Adverse events were also compared between the groups.ResultsCompared with the chemotherapy-based regimen, the ICI-containing regimen was associated with a significantly higher intracranial (44.1% [45/102] vs . 28.4% [31/109], χ2 = 5.620, P = 0.013) and systemic (49.0% [50/102] vs . 33.9% [37/109], χ2 = 4.942, P = 0.019) ORRs and longer intracranial (11.0 months vs . 7.0 months, P <0.001) and systemic (9.0 months vs . 5.0 months, P <0.001) PFS. Multivariable analysis consistently revealed an independent association between receiving ICI plus platinum-based chemotherapy as a first-line regimen and prolonged intracranial PFS (hazard ratio [HR] = 0.52, 95% confidence interval [CI]: 0.37-0.73, P <0.001) and systemic PFS (HR = 0.48, 95% CI: 0.35-0.66, P <0.001). No unexpected serious adverse effects were observed.ConclusionOur study provides real-world clinical evidence that ICI combined with chemotherapy is a promising first-line treatment option for driver gene mutation-negative advanced NSCLC patients who present with brain metastasis at initial diagnosis.Clinical trial registrationhttps://www.clinicaltrials.gov/ , OMESIA, NCT05129202.

Project description:BackgroundAs revealed by previous studies, the modified lung immune predictive index (mLIPI) can predict outcomes in patients with lung cancer receiving single-agent immunotherapy. However, the application value of the mLIPI for patients treated with combination immunotherapy requires further investigation. In this study, we aimed to explore the relationship between the mLIPI and the efficacy of treatment together with the prognosis of patients with advanced non-small cell lung cancer (NSCLC) receiving first-line immune checkpoint inhibitors (ICIs) combined with platinum-based chemotherapy.MethodsIn this retrospective study, we enrolled patients with advanced NSCLC treated with ICIs plus chemotherapy from March 2019 to June 2022. The patients were classified into good, intermediate, and poor/very poor groups according to their mLIPI before treatment. We further calculated the disease control rate (DCR), objective response rate (ORR), progression-free survival (PFS), and overall survival (OS) of the three groups. The predictive ability of the mLIPI was evaluated by plotting a time-dependent receiver operating characteristic (ROC) curve and calculating the area under the curve (AUC).ResultsA total of 209 patients were included in this study. There were 75 patients in the good group, 114 patients in the intermediate group, and 20 patients in the poor/very poor group. The median PFS was 11.2 months [95% confidence interval (CI): 8.763-13.704] in the good group; 8.1 months (95% CI: 7.354-8.846) in the intermediate group; and 5.4 months (95% CI: 2.142-8.658) in the poor/very poor group. The median OS was not reached in the good group, 29.5 months (95% CI: 23.555-35.512) in the intermediate group, and 14.5 months (95% CI: 8.567-20.366) in the poor/very poor group (P<0.05). Multivariate analysis showed that the mLIPI was independently associated with PFS and OS (P<0.05); the AUC values of the mLIPI for predicting PFS at 3, 6, and 9 months were 0.673, 0.637, and 0.614, respectively, and for predicting OS at 6, 12, and 24 months were 0.715, 0.655, and 0.625, respectively.ConclusionsThe pretreatment mLIPI could be used to predict outcomes in patients with NSCLC receiving first-line ICIs plus chemotherapy.

Dataset Information

Combined Checkpoint Inhibition and Chemotherapy: New Era of 1st-Line Treatment for Non-Small-Cell Lung Cancer.

Publications

Combined Checkpoint Inhibition and Chemotherapy: New Era of 1<sup>st</sup>-Line Treatment for Non-Small-Cell Lung Cancer.

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