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Table 2 Cumulative incidence of events of interest in the control arms of a selection of trials. For a given C-index of a prognostic covariate, the impact of covariate adjustment will be larger for indications with large cumulative incidence of events. HR+, hormone receptor positive; PD-L1+, programmed death ligand 1 positive; NSCLC, non-small cell lung cancer

From: More efficient and inclusive time-to-event trials with covariate adjustment: a simulation study

Indication

Trial

Cumulative incidence \(\Lambda\) in control arm

HR+ early breast cancer (eBC)

BIG 1-98 [32]

Letrozole vs tamoxifen

Probability of disease recurrence at 5 years: 18.6%

HCC after resection of local ablation (eHCC)

STORM [25]

Sorafenib vs placebo

Probability of death at 5 years: 32%

Metastatic hormone-sensitive prostate cancer

ENZAMET [33]

Enzalutamide vs standard nonsteroidal antiandrogen therapy in addition to testosterone suppression

Probability of death at 4 years: 36%

PD-L1+ advanced NSCLC

KEYNOTE-024 [34]

Pembrolizumab vs chemotherapy

Probability of death at 1.5 years: 50%

HR+ metastatic breast cancer in premenopausal patients (mBC)

MONALEESA-7 [35]

Ribociclib vs placebo in addition to endocrine therapy

Probability of death at 3.5 years: 54%

Resected pancreatic cancer

PRODIGE 24 [36]

Modified FOLFIRINOX vs gemcitabine

Probability of death at 5 years: 70%

Advanced HCC (aHCC)

CheckMate 459 [37]

Nivolumab vs sorafenib

Probability of death at 3 years: 83%

Malignant pleural mesothelioma

CheckMate 743 [38]

Nivolumab+Ipilimumab vs chemotherapy

Probability of death at 3 years: 85%

Metastatic pancreatic cancer

OXIPAN [39]

FOLFIRINOX vs gemcitabine

Probability of death at 3 years: 98%