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- Publisher Website: 10.1016/j.cct.2021.106353
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- PMID: 33706004
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Article: Concordance index: Surrogacy of progression-free survival for overall survival
Title | Concordance index: Surrogacy of progression-free survival for overall survival |
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Authors | |
Keywords | Concordance index Oncology trials Overall survival Progression-free survival Surrogate |
Issue Date | 2021 |
Publisher | Elsevier Inc. The Journal's web site is located at http://www.elsevier.com/locate/conclintrial |
Citation | Contemporary Clinical Trials, 2021, v. 104, article no. 106353 How to Cite? |
Abstract | In oncology clinical trials, the primary endpoint is often time to an event of clinical interest, e.g., time to disease progression or time to death. As a result, progression-free survival (PFS: the time from initiation of treatment till disease progression or death whichever occurs first) and overall survival (OS: the time from initiation of treatment till death) are the focus of statistical analysis in comparison of two treatment arms. It is often argued that PFS may serve as a surrogate endpoint for OS, while the validity of such surrogacy is still under debates in different types of cancer. In practice, one may observe a significant difference in PFS but no significant difference in OS; or vice versa. We provide a concordance index (C-index) to measure the degree of concordance between PFS and OS, and elaborate on the PFS vs OS discrepancies using the C-index using simulation studies and real trial analysis. |
Persistent Identifier | http://hdl.handle.net/10722/304014 |
ISSN | 2023 Impact Factor: 2.0 2023 SCImago Journal Rankings: 0.980 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Fan, Y | - |
dc.contributor.author | Yin, G | - |
dc.date.accessioned | 2021-09-23T08:54:02Z | - |
dc.date.available | 2021-09-23T08:54:02Z | - |
dc.date.issued | 2021 | - |
dc.identifier.citation | Contemporary Clinical Trials, 2021, v. 104, article no. 106353 | - |
dc.identifier.issn | 1551-7144 | - |
dc.identifier.uri | http://hdl.handle.net/10722/304014 | - |
dc.description.abstract | In oncology clinical trials, the primary endpoint is often time to an event of clinical interest, e.g., time to disease progression or time to death. As a result, progression-free survival (PFS: the time from initiation of treatment till disease progression or death whichever occurs first) and overall survival (OS: the time from initiation of treatment till death) are the focus of statistical analysis in comparison of two treatment arms. It is often argued that PFS may serve as a surrogate endpoint for OS, while the validity of such surrogacy is still under debates in different types of cancer. In practice, one may observe a significant difference in PFS but no significant difference in OS; or vice versa. We provide a concordance index (C-index) to measure the degree of concordance between PFS and OS, and elaborate on the PFS vs OS discrepancies using the C-index using simulation studies and real trial analysis. | - |
dc.language | eng | - |
dc.publisher | Elsevier Inc. The Journal's web site is located at http://www.elsevier.com/locate/conclintrial | - |
dc.relation.ispartof | Contemporary Clinical Trials | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License | - |
dc.subject | Concordance index | - |
dc.subject | Oncology trials | - |
dc.subject | Overall survival | - |
dc.subject | Progression-free survival | - |
dc.subject | Surrogate | - |
dc.title | Concordance index: Surrogacy of progression-free survival for overall survival | - |
dc.type | Article | - |
dc.identifier.email | Yin, G: gyin@hku.hk | - |
dc.identifier.authority | Yin, G=rp00831 | - |
dc.description.nature | postprint | - |
dc.identifier.doi | 10.1016/j.cct.2021.106353 | - |
dc.identifier.pmid | 33706004 | - |
dc.identifier.scopus | eid_2-s2.0-85102426850 | - |
dc.identifier.hkuros | 325320 | - |
dc.identifier.volume | 104 | - |
dc.identifier.spage | article no. 106353 | - |
dc.identifier.epage | article no. 106353 | - |
dc.identifier.isi | WOS:000695272900013 | - |
dc.publisher.place | United States | - |