PMID- 38335467 OWN - NLM STAT- MEDLINE DCOM- 20240419 LR - 20240419 IS - 1527-7755 (Electronic) IS - 0732-183X (Linking) VI - 42 IP - 12 DP - 2024 Apr 20 TI - Long-Term Follow-Up of the Anthracyclines in Early Breast Cancer Trials (USOR 06-090, NSABP B-46-I/USOR 07132, and NSABP B-49 [NRG Oncology]). PG - 1344-1349 LID - 10.1200/JCO.23.01428 [doi] AB - Clinical trials frequently include multiple end points that mature at different times. The initial report, typically based on the primary end point, may be published when key planned co-primary or secondary analyses are not yet available. Clinical Trial Updates provide an opportunity to disseminate additional results from studies, published in JCO or elsewhere, for which the primary end point has already been reported.The primary joint efficacy analysis of the Anthracyclines in Early Breast Cancer (ABC) trials reported in 2017 failed to demonstrate nonanthracycline adjuvant therapy was noninferior to anthracycline-based regimens in high-risk, early breast cancer. Full analyses of the studies had proceeded when the prespecified futility boundary was crossed at a planned futility analysis for the ability to demonstrate noninferiority of a nonanthracycline regimen with continued follow-up. These results were presented with 3.3 years of median follow-up. This manuscript reports results of the final analyses of the study efficacy end points conducted with 6.9 years of median follow-up. Long-term analysis of invasive disease-free survival (IDFS), the primary end point of the ABC trials, remains consistent with the original results, as noninferiority of the nonanthracycline regimens could not be declared on the basis of the original criteria. The secondary end point of recurrence-free interval, which excluded deaths not due to breast cancer as events, favored anthracycline-based regimens, and tests for heterogeneity were significant for hormone receptor status (P = .02) favoring anthracycline regimens for the hormone receptor-negative cohorts. There was no difference in overall survival, and review of the type of IDFS events in the groups suggested reductions in cancer recurrences achieved with anthracycline regimens were offset by late leukemias and deaths unrelated to breast cancer. FAU - Geyer, Charles E Jr AU - Geyer CE Jr AUID- ORCID: 0000-0002-2379-5702 AD - NSABP Foundation/NRG Oncology, Pittsburgh, PA. AD - UPMC Hillman Cancer Center, University of Pittsburgh School of Medicine, Pittsburgh, PA. FAU - Blum, Joanne L AU - Blum JL AUID- ORCID: 0000-0002-7951-6645 AD - Baylor-Sammons Cancer Center, Texas Oncology, US Oncology Research, Dallas, TX. FAU - Yothers, Greg AU - Yothers G AUID- ORCID: 0000-0002-7965-7333 AD - NRG Oncology SDMC, Department of Biostatistics, and University of Pittsburgh School of Public Health, Pittsburgh, PA. FAU - Asmar, Lina AU - Asmar L AD - USOR, McKesson Specialty Health, The Woodlands, TX. FAU - Flynn, Patrick J AU - Flynn PJ AUID- ORCID: 0000-0001-6516-8021 AD - Minnesota Community Oncology Research Consortium (MSORC), Stone Lake, MI. FAU - Robert, Nicholas J AU - Robert NJ AUID- ORCID: 0000-0002-8491-5392 AD - Ontada, Irving, TX. FAU - Hopkins, Judith O AU - Hopkins JO AUID- ORCID: 0000-0002-9829-1242 AD - Novant Health (Forsyth Medical) Cancer Institute, Southeast Clinical Oncology Research (SCOR) NCORP, Winston Salem, NC. FAU - O'Shaughnessy, Joyce A AU - O'Shaughnessy JA AD - Baylor University Medical Center, Texas Oncology, US Oncology Research, Dallas, TX. FAU - Rastogi, Priya AU - Rastogi P AUID- ORCID: 0000-0002-6179-6407 AD - NSABP Foundation/NRG Oncology, Pittsburgh, PA. AD - UPMC Hillman Cancer Center, University of Pittsburgh School of Medicine, Pittsburgh, PA. AD - UPMC Magee-Womens Hospital, Pittsburgh, PA. FAU - Puhalla, Shannon L AU - Puhalla SL AD - NSABP Foundation/NRG Oncology, Pittsburgh, PA. AD - UPMC Hillman Cancer Center, University of Pittsburgh School of Medicine, Pittsburgh, PA. FAU - Hilton, Christie J AU - Hilton CJ AD - NSABP Foundation/NRG Oncology, Pittsburgh, PA. AD - Allegheny Health Network, Pittsburgh, PA. FAU - Dang, Chau T AU - Dang CT AD - Memorial Sloan Kettering Cancer Center, West Harrison, NY. FAU - Gomez, Henry Leonidas AU - Gomez HL AUID- ORCID: 0000-0002-4234-4448 AD - National Institute of Neoplastic Diseases, Lima, Peru. FAU - Vukelja, Svetislava J AU - Vukelja SJ AD - US Oncology Tyler Cancer Center, Tyler, TX. FAU - Lyss, Alan P AU - Lyss AP AD - Heartland Cancer Research NCORP-Missouri Baptist Medical Center, St Louis, MO. FAU - Paul, Devchand AU - Paul D AD - USOR, McKesson Specialty Health, The Woodlands, TX. FAU - Brufsky, Adam M AU - Brufsky AM AUID- ORCID: 0000-0001-8080-7960 AD - UPMC Hillman Cancer Center, University of Pittsburgh School of Medicine, Pittsburgh, PA. AD - UPMC Magee-Womens Hospital, Pittsburgh, PA. FAU - Colangelo, Linda H AU - Colangelo LH AD - NRG Oncology SDMC, Department of Biostatistics, and University of Pittsburgh School of Public Health, Pittsburgh, PA. FAU - Swain, Sandra M AU - Swain SM AUID- ORCID: 0000-0002-1320-3830 AD - NSABP Foundation/NRG Oncology, Pittsburgh, PA. AD - Georgetown Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, MedStar Health, Washington, DC. FAU - Mamounas, Eleftherios P AU - Mamounas EP AUID- ORCID: 0000-0002-9476-2553 AD - NSABP Foundation/NRG Oncology, Pittsburgh, PA. AD - Orlando Health Cancer Institute, Orlando, FL. FAU - Wolmark, Norman AU - Wolmark N AUID- ORCID: 0000-0001-7156-1110 AD - NSABP Foundation/NRG Oncology, Pittsburgh, PA. AD - UPMC Hillman Cancer Center, University of Pittsburgh School of Medicine, Pittsburgh, PA. LA - eng SI - ClinicalTrials.gov/NCT01547741 SI - ClinicalTrials.gov/NCT00493870 SI - ClinicalTrials.gov/NCT00887536 GR - U10 CA180822/CA/NCI NIH HHS/United States GR - U10 CA180868/CA/NCI NIH HHS/United States GR - UG1 CA189867/CA/NCI NIH HHS/United States PT - Journal Article DEP - 20240209 PL - United States TA - J Clin Oncol JT - Journal of clinical oncology : official journal of the American Society of Clinical Oncology JID - 8309333 RN - 0 (Taxoids) RN - 0 (Anthracyclines) RN - 0 (Hormones) SB - IM MH - Humans MH - Female MH - *Taxoids/therapeutic use MH - Follow-Up Studies MH - *Breast Neoplasms/drug therapy MH - Anthracyclines MH - Hormones MH - Antineoplastic Combined Chemotherapy Protocols/therapeutic use EDAT- 2024/02/09 18:42 MHDA- 2024/04/19 06:43 CRDT- 2024/02/09 16:03 PHST- 2024/04/19 06:43 [medline] PHST- 2024/02/09 18:42 [pubmed] PHST- 2024/02/09 16:03 [entrez] AID - 10.1200/JCO.23.01428 [doi] PST - ppublish SO - J Clin Oncol. 2024 Apr 20;42(12):1344-1349. doi: 10.1200/JCO.23.01428. Epub 2024 Feb 9.