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This is a Pre-Registered Trial study.

December 1, 2025Statistics in Medicine

Covariate‐Adjusted Group Sequential Comparisons of Survival Probabilities

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Survival probabilities improve with covariate adjustment in clinical trials, highlighting efficiency in interim analyses.
Tests maintain Type I error control and optimize power without violating proportional hazards assumptions.
Analysis suggests that group sequential tests enhance the interpretation of treatment effects compared to conventional methods.
Implications support the need for novel testing methods in clinical trials examining immunotherapy versus chemotherapy.

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Implication

Group sequential tests for survival probabilities suggest effective monitoring in cancer research, implying robust treatment effects with covariate adjustment.

Cite This Study

Zhang et al. (2025) studied this question.

synapsesocial.com/papers/69402a652d562116f2901b58 https://doi.org/10.1002/sim.70339

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Implication

Group sequential tests for survival probabilities suggest effective monitoring in cancer research, implying robust treatment effects with covariate adjustment.

Covariate‐Adjusted Group Sequential Comparisons of Survival Probabilities

Key Points

Discussion

Implication

Cite This Study

Covariate‐Adjusted Group Sequential Comparisons of Survival Probabilities

Key Points

Discussion

Implication

Cite This Study

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