TAILORx

Podcasts, YouTube videos and X posts in our index that name this trial. A report screens them, searches for more and cites what clinicians said when it is built.

Official title

Program for the Assessment of Clinical Cancer Tests (PACCT-1): Trial Assigning Individualized Options for Treatment:The TAILORx Trial

Phase

Phase 3

Status

Active not recruiting

Conditions

Breast Adenocarcinoma; Hormone Receptor Positive; Stage IA Breast Cancer AJCC v7; Stage IB Breast Cancer AJCC v7; Stage IIA Breast Cancer AJCC v6 and v7; Stage IIB Breast Cancer AJCC v6 and v7; Stage IIIB Breast Cancer AJCC v7

Interventions

Anastrozole; Exemestane; Laboratory Biomarker Analysis; Letrozole; Quality-of-Life Assessment; Radiation Therapy; Tamoxifen Citrate

Arms

• Group 1 (Oncotype DX recurrence score =< 10) · Experimental
• Group 2, Arm I (experimental) · Experimental
• Group 2, Arm II (standard) · Active comparator
• Group 3 (Oncotype DX recurrence score >= 26) · Experimental

Enrollment

10,273

Primary outcomes

• 5-year Disease-free Survival

Sponsor

National Cancer Institute (NCI) with American College of Surgeons, Cancer and Leukemia Group B, NSABP Foundation Inc, NCIC Clinical Trials Group, North Central Cancer Treatment Group, SWOG Cancer Research Network

Start

Apr 7, 2006

Primary completion

Mar 2, 2018

Results posted

Yes

Registry record

NCT00310180 · updated Oct 1, 2026

• Kantor O, King TA, Freedman RA, Mayer EL, Chavez-MacGregor M, Korde LA, Sparano JA, Mittendorf EA. Racial and Ethnic Disparities in Locoregional Recurrence Among Patients With Hormone Receptor-Positive, Node-Negative Breast Cancer: A Post Hoc Analysis of the TAILORx Randomized Clinical Trial. JAMA Surg. 2023 Jun 1;158(6):583-591. doi: 10.1001/jamasurg.2023.0297. PubMed 37043210
• Sadigh G, Gray RJ, Sparano JA, Yanez B, Garcia SF, Timsina LR, Obeng-Gyasi S, Gareen I, Sledge GW, Whelan TJ, Cella D, Wagner LI, Carlos RC. Assessment of Racial Disparity in Survival Outcomes for Early Hormone Receptor-Positive Breast Cancer After Adjusting for Insurance Status and Neighborhood Deprivation: A Post Hoc Analysis of a Randomized Clinical Trial. JAMA Oncol. 2022 Apr 1;8(4):579-586. doi: 10.1001/jamaoncol.2021.7656. PubMed 35175284
• Yanez B, Gray RJ, Sparano JA, Carlos RC, Sadigh G, Garcia SF, Gareen IF, Whelan TJ, Sledge GW, Cella D, Wagner LI. Association of Modifiable Risk Factors With Early Discontinuation of Adjuvant Endocrine Therapy: A Post Hoc Analysis of a Randomized Clinical Trial. JAMA Oncol. 2021 Jun 17;7(8):1-7. doi: 10.1001/jamaoncol.2021.1693. Online ahead of print. PubMed 34137783
• Lynch SM, Russell NM, Barron S, Wang CA, Loughman T, Dynoodt P, Fender B, Lopez-Ruiz C, O'Grady A, Sheehan KM, Fay J, Amberger-Murphy V, Saha A, Klinger R, Gonzalez CA, Al-Attar N, Rahman A, O'Leary D, Lanigan FT, Bracken AP, Crown J, Kelly CM, O'Connor DP, Gallagher WM. Prognostic value of the 6-gene OncoMasTR test in hormone receptor-positive HER2-negative early-stage breast cancer: Comparative analysis with standard clinicopathological factors. Eur J Cancer. 2021 Jul;152:78-89. doi: 10.1016/j.ejca.2021.04.016. Epub 2021 Jun 2. PubMed 34090143
• Freidlin B, Hu C, Korn EL. Are restricted mean survival time methods especially useful for noninferiority trials? Clin Trials. 2021 Apr;18(2):188-196. doi: 10.1177/1740774520976576. Epub 2021 Feb 24. PubMed 33626896
• Wagner LI, Gray RJ, Sparano JA, Whelan TJ, Garcia SF, Yanez B, Tevaarwerk AJ, Carlos RC, Albain KS, Olson JA Jr, Goetz MP, Pritchard KI, Hayes DF, Geyer CE, Dees EC, McCaskill-Stevens WJ, Minasian LM, Sledge GW Jr, Cella D. Patient-Reported Cognitive Impairment Among Women With Early Breast Cancer Randomly Assigned to Endocrine Therapy Alone Versus Chemoendocrine Therapy: Results From TAILORx. J Clin Oncol. 2020 Jun 10;38(17):1875-1886. doi: 10.1200/JCO.19.01866. Epub 2020 Apr 9. PubMed 32271671
• Sparano JA, Gray RJ, Makower DF, Albain KS, Saphner TJ, Badve SS, Wagner LI, Kaklamani VG, Keane MM, Gomez HL, Reddy PS, Goggins TF, Mayer IA, Toppmeyer DL, Brufsky AM, Goetz MP, Berenberg JL, Mahalcioiu C, Desbiens C, Hayes DF, Dees EC, Geyer CE Jr, Olson JA Jr, Wood WC, Lively T, Paik S, Ellis MJ, Abrams J, Sledge GW Jr. Clinical Outcomes in Early Breast Cancer With a High 21-Gene Recurrence Score of 26 to 100 Assigned to Adjuvant Chemotherapy Plus Endocrine Therapy: A Secondary Analysis of the TAILORx Randomized Clinical Trial. JAMA Oncol. 2020 Mar 1;6(3):367-374. doi: 10.1001/jamaoncol.2019.4794. PubMed 31566680
• Korn EL, Gray RJ, Freidlin B. Noninferiority trials with nonadherence to the assigned randomized treatment. Clin Trials. 2019 Dec;16(6):673-681. doi: 10.1177/1740774519868479. Epub 2019 Aug 14. PubMed 31409130
• Sparano JA, Gray RJ, Ravdin PM, Makower DF, Pritchard KI, Albain KS, Hayes DF, Geyer CE Jr, Dees EC, Goetz MP, Olson JA Jr, Lively T, Badve SS, Saphner TJ, Wagner LI, Whelan TJ, Ellis MJ, Paik S, Wood WC, Keane MM, Gomez Moreno HL, Reddy PS, Goggins TF, Mayer IA, Brufsky AM, Toppmeyer DL, Kaklamani VG, Berenberg JL, Abrams J, Sledge GW Jr. Clinical and Genomic Risk to Guide the Use of Adjuvant Therapy for Breast Cancer. N Engl J Med. 2019 Jun 20;380(25):2395-2405. doi: 10.1056/NEJMoa1904819. Epub 2019 Jun 3. PubMed 31157962
• Sparano JA, Gray RJ, Makower DF, Pritchard KI, Albain KS, Hayes DF, Geyer CE Jr, Dees EC, Goetz MP, Olson JA Jr, Lively T, Badve SS, Saphner TJ, Wagner LI, Whelan TJ, Ellis MJ, Paik S, Wood WC, Ravdin PM, Keane MM, Gomez Moreno HL, Reddy PS, Goggins TF, Mayer IA, Brufsky AM, Toppmeyer DL, Kaklamani VG, Berenberg JL, Abrams J, Sledge GW Jr. Adjuvant Chemotherapy Guided by a 21-Gene Expression Assay in Breast Cancer. N Engl J Med. 2018 Jul 12;379(2):111-121. doi: 10.1056/NEJMoa1804710. Epub 2018 Jun 3. PubMed 29860917
• Sparano JA, Gray RJ, Makower DF, Pritchard KI, Albain KS, Hayes DF, Geyer CE Jr, Dees EC, Perez EA, Olson JA Jr, Zujewski J, Lively T, Badve SS, Saphner TJ, Wagner LI, Whelan TJ, Ellis MJ, Paik S, Wood WC, Ravdin P, Keane MM, Gomez Moreno HL, Reddy PS, Goggins TF, Mayer IA, Brufsky AM, Toppmeyer DL, Kaklamani VG, Atkins JN, Berenberg JL, Sledge GW. Prospective Validation of a 21-Gene Expression Assay in Breast Cancer. N Engl J Med. 2015 Nov 19;373(21):2005-14. doi: 10.1056/NEJMoa1510764. Epub 2015 Sep 27. PubMed 26412349