Elderly ES-SCLC Patient Outcomes with Immunochemotherapy and Thoracic Radiotherapy

A retrospective study analyzes 1,276 extensive-stage small cell lung cancer patients, including 350 elderly patients aged 70 years and older, treated with first-line therapy. The research, authored by Fengxin Sun and published on figshare in 2026, investigates the efficacy and safety of combining immunochemotherapy with thoracic radiotherapy. It employs propensity score matching on 780 patients to evaluate overall and progression-free survival.

Use Cases

• Compare overall survival (OS) and progression-free survival (PFS) between patients receiving immunochemotherapy (IO+ChT) versus chemotherapy alone.
• Analyze the interaction effect between thoracic radiotherapy (TRT) and immunotherapy on survival outcomes using the reported p-value for interaction.
• Assess the safety profile of TRT by examining data on mild hematologic toxicity and severe adverse events like pneumonia.
• Identify independent prognostic factors for survival in elderly ES-SCLC patients, such as TRT receipt indicated by a hazard ratio (HR=0.56).
• Model treatment efficacy in a matched cohort derived from propensity score matching (PSM) of 780 patients to control for selection bias.

Strengths

• Includes data from 1,276 patient records, with a specific focus on 350 elderly patients (≥70 years).
• Employs rigorous statistical methods including a 4-month landmark analysis and propensity score matching on 780 patients.
• Reports specific, statistically significant results (p<0.01, HR=0.56) for key clinical endpoints like overall survival.

Limitations

• The dataset is very small at 240.5 KB, suggesting it contains summary statistics or a manuscript rather than raw patient-level data.
• As a single-center retrospective study, findings may have limited generalizability due to potential institutional biases.
• Specific patient-level columns, features, and the exact row count for the underlying data are not provided.

Provenance

Source

figshare, authored by Fengxin Sun.

Collection Method

Single-center retrospective analysis of patient medical records.

Freshness

Data was last updated in April 2026, indicating it is forward-dated and likely represents a pre-publication or planned study.

Geography

Single-center study; specific geographic location is unknown.