Concomitant and Sequential Radiohormonotherapy in Adjuvant Breast Cancer

Summary

This trial will compare grade 2 or greater late skin toxicities of concomitant letrozole-radiotherapy and radiotherapy followed by letrozole as adjuvant therapy for postmenopausal women with receptor (estrogen receptor \[ER\] and/or progesterone receptor \[PgR\]) positive tumors. Each drug will be prescribed for 5 years.

Timeline

Start

2005-01

Primary completion

2007-01

Completion

2007-02

Publications

• Background Azria D, Pelegrin A, Dubois JB, Mirimanoff RO, Ozsahin M. Radiation therapy and tamoxifen: concurrent or sequential? It's no longer the question! J Clin Oncol. 2005 Jun 20;23(18):4239-41; author reply 4241-2. doi: 10.1200/JCO.2004.00.8623. No abstract available.
• Background Azria D, Larbouret C, Cunat S, Ozsahin M, Gourgou S, Martineau P, Evans DB, Romieu G, Pujol P, Pelegrin A. Letrozole sensitizes breast cancer cells to ionizing radiation. Breast Cancer Res. 2005;7(1):R156-63. doi: 10.1186/bcr969. Epub 2004 Dec 7.
• Background Azria D, Gourgou S, Sozzi WJ, Zouhair A, Mirimanoff RO, Kramar A, Lemanski C, Dubois JB, Romieu G, Pelegrin A, Ozsahin M. Concomitant use of tamoxifen with radiotherapy enhances subcutaneous breast fibrosis in hypersensitive patients. Br J Cancer. 2004 Oct 4;91(7):1251-60. doi: 10.1038/sj.bjc.6602146.
• Background Azria D, Lemanski C, Zouhair A, Gutowski M, Belkacemi Y, Dubois JB, Romieu G, Ozsahin M. [Adjuvant treatment of breast cancer by concomitant hormonotherapy and radiotherapy: state of the art]. Cancer Radiother. 2004 Jun;8(3):188-96. doi: 10.1016/j.canrad.2004.01.003. French.
• Bourgier C, Kerns S, Gourgou S, Lemanski C, Gutowski M, Fenoglietto P, Romieu G, Crompton N, Lacombe J, Pelegrin A, Ozsahin M, Rosenstein B, Azria D. Concurrent or sequential letrozole with adjuvant breast radiotherapy: final results of the CO-HO-RT phase II randomized trial. Ann Oncol. 2016 Mar;27(3):474-80. doi: 10.1093/annonc/mdv602. Epub 2015 Dec 17.
• Azria D, Belkacemi Y, Romieu G, Gourgou S, Gutowski M, Zaman K, Moscardo CL, Lemanski C, Coelho M, Rosenstein B, Fenoglietto P, Crompton NE, Ozsahin M. Concurrent or sequential adjuvant letrozole and radiotherapy after conservative surgery for early-stage breast cancer (CO-HO-RT): a phase 2 randomised trial. Lancet Oncol. 2010 Mar;11(3):258-65. doi: 10.1016/S1470-2045(10)70013-9. Epub 2010 Feb 6.

Drugs

Indications