Volume 19, Issue 1 pp. 158-171
ORIGINAL ARTICLE

Prevalence of highly actionable mutations among Indian patients with advanced non-small cell lung cancer: A systematic review and meta-analysis

Ruchir Raman

Ruchir Raman

Centre of Excellence for Biopharmaceutical Technology, Indian Institute of Technology, Delhi, India

Department of Chemical Engineering, Indian Institute of Technology, Delhi, India

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Varun Ramamohan

Varun Ramamohan

Department of Mechanical Engineering, Indian Institute of Technology, Delhi, India

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Anurag Rathore

Anurag Rathore

Centre of Excellence for Biopharmaceutical Technology, Indian Institute of Technology, Delhi, India

Department of Chemical Engineering, Indian Institute of Technology, Delhi, India

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Deepali Jain

Deepali Jain

Department of Pathology, All India Institute of Medical Sciences, New Delhi, India

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Anant Mohan

Anant Mohan

Department of Pulmonary, Critical Care and Sleep Medicine, All Indian Institute of Medical Sciences, New Delhi, India

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Vishal Vashistha

Corresponding Author

Vishal Vashistha

Department of Pulmonary, Critical Care and Sleep Medicine, All Indian Institute of Medical Sciences, New Delhi, India

Section of Hematology and Oncology, Department of Medicine, New Mexico Veterans Affairs Medical Center, Albuquerque, New Mexico, USA

University of New Mexico Cancer Center, Albuquerque, New Mexico, USA

Correspondence

Vishal Vashistha, Section of Hematology and Oncology, Department of Medicine, New Mexico Veterans Affairs Medical Center, Albuquerque, NM, USA 87109.

Email: [email protected]

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First published: 30 May 2022

Abstract

Background

Non-small cell lung cancer (NSCLC) remains a leading cause of cancer-related mortality in India. To clarify rates of actionable mutations, and thereby identify opportunities to improve the delivery of best available care for a large volume of patients, a comprehensive review of available data is warranted.

Methods

Studies that reported prevalence of any actionable gene variant among adult Indian patients with advanced NSCLC were selected from three databases (PubMed, EMBASE, and Cochrane Library). Ranges in actionable variant prevalence were reported. Meta-analysis of proportions was completed among studies specifically evaluating mutational prevalence within ALK or EGFR. Sensitivity analyses were undertaken among populations sharing high heterogeneity.

Results

Twenty-six studies were selected. Ranges in actionable mutational prevalence among NSCLC patients were as follows: ALK: 4.1–21.4%, BRAF: 1.5–3.5%, EGFR: 11.9–51.8%, HER2: 0–1.5%, KRAS: 4.5–6.4%, NTRK: 0–.7%, and ROS-1: 3.5–4.1%. Following sensitivity analysis, pooled ALK mutational prevalence rates were 8.3% (95% CIs: 6.6–10.4%) and 4.01% (95% CIs: 2.3–7.0) for adenocarcinoma and NSCLC patients, respectively. Pooled EGFR mutational prevalence rates were 28.7% (95% CIs: 23.5–34.6%) and 24.2% (95% CIs: 19.9–29.1%) for adenocarcinoma and NSCLC patients, respectively.

Conclusions

Nearly 40% of Indian patients with advanced adenocarcinoma and 30% with NSCLC share an actionable mutation in ALK or EGFR. Approximately one-half of adenocarcinoma patients have an actionable variant. Efforts should be directed toward efficiently identifying candidates for targeted agents and delivering such treatments.

DATA AVAILABILITY STATEMENT

Data sharing is not applicable to this article as no new data were created or analyzed in this study.

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