Prognostic Nomogram to Predict Progression-free Survival in Patients with Platinum-sensitive Recurrent Ovarian Cancer
Overview
Authors
Affiliations
Background: Patients with platinum-sensitive recurrent ovarian cancer are a heterogeneous group, and it is not possible to accurately predict the progression-free survival (PFS) in these patients. We developed and validated a nomogram to help improve prediction of PFS in patients treated with platinum-based chemotherapy.
Methods: The nomogram was developed in a training cohort (n=955) from the CALYPSO trial and validated in the AGO-OVAR 2.5 Study (n=340). The proportional-hazards model (nomogram) was based on pre-treatment characteristics.
Results: The nomogram had a concordance index (C-index) of 0.645. Significant predictors were tumour size platinum-chemotherapy-free interval, CA-125, number of organ metastatic sites and white blood count. When the nomogram was applied without CA-125 (CA-125 was not available in validation cohort), the C-indices were 0.624 (training) and 0.594 (validation). When classification was based only on the platinum-chemotherapy-free interval, the indices were 0.571 (training) and 0.560 (validation). The calibration plot in the validation cohort based on four predictors (without CA-125) suggested good agreement between actual and nomogram-predicted 12-month PFS probabilities.
Conclusion: This nomogram, using five pre-treatment characteristics, improves prediction of PFS in patients with platinum-sensitive ovarian cancer having platinum-based chemotherapy. It will be useful for the design and stratification of patients in clinical trials and also for counselling patients.
Pegylated liposomal doxorubicin for relapsed epithelial ovarian cancer.
Newhouse R, Nelissen E, El-Shakankery K, Rogozinska E, Bain E, Veiga S Cochrane Database Syst Rev. 2023; 7:CD006910.
PMID: 37407274 PMC: 10321312. DOI: 10.1002/14651858.CD006910.pub3.
Wang Q, Feng X, Liu X, Zhu S Front Oncol. 2022; 12:868061.
PMID: 35463345 PMC: 9022002. DOI: 10.3389/fonc.2022.868061.
Quesada S, Fabbro M, Solassol J Cancers (Basel). 2022; 14(4).
PMID: 35205846 PMC: 8870335. DOI: 10.3390/cancers14041098.
Zheng M, Long J, Chelariu-Raicu A, Mullikin H, Vilsmaier T, Vattai A Cancers (Basel). 2021; 13(13).
PMID: 34283076 PMC: 8268985. DOI: 10.3390/cancers13133343.
Nomogram for Estimating Overall Survival in Patients With Metastatic Pancreatic Cancer.
Goldstein D, Von Hoff D, Chiorean E, Reni M, Tabernero J, Ramanathan R Pancreas. 2020; 49(6):744-750.
PMID: 32541630 PMC: 7314499. DOI: 10.1097/MPA.0000000000001563.