National Surgical Adjuvant Study of Breast Cancer(N-SAS BC) 07 [RESPECT]

Summary

To investigate clinical positioning between trastuzumab (Herceptin) monotherapy (H group) and combination therapy of trastuzumab and chemotherapy (H+CT group) based on a randomized controlled trial in women over 70 years with human epidermal growth factor receptor type-2 (HER2) positive primary breast cancer.

Timeline

Start

2009-10-28

Primary completion

2017-10-31

Completion

2018-10-15

Publications

• Nozawa K, Sawaki M, Uemura Y, Tsuneizumi M, Takano T, Gondo N, Hara F, Harao M, Toyama T, Taira N, Vivancos A, Perou CM, Sanfeliu E, Braso-Maristany F, Parker JS, Buckingham W, Pare L, Villacampa G, Marin-Aguilera M, Villagrasa P, Prat A, Iwata H. HER2DX in older patients with HER2-positive early breast cancer: extended follow-up from the RESPECT trial of trastuzumab +/- chemotherapy. Nat Commun. 2025 Nov 4;16(1):9585. doi: 10.1038/s41467-025-65599-x.
• Hagiwara Y, Sawaki M, Uemura Y, Kawahara T, Shimozuma K, Ohashi Y, Takahashi M, Saito T, Baba S, Kobayashi K, Mukai H, Taira N. Impact of chemotherapy on cognitive functioning in older patients with HER2-positive breast cancer: a sub-study in the RESPECT trial. Breast Cancer Res Treat. 2021 Aug;188(3):675-683. doi: 10.1007/s10549-021-06253-0. Epub 2021 Jun 2.
• Taira N, Sawaki M, Uemura Y, Saito T, Baba S, Kobayashi K, Kawashima H, Tsuneizumi M, Sagawa N, Bando H, Takahashi M, Yamaguchi M, Takashima T, Nakayama T, Kashiwaba M, Mizuno T, Yamamoto Y, Iwata H, Ohashi Y, Mukai H, Kawahara T; RESPECT Study Group. Health-Related Quality of Life With Trastuzumab Monotherapy Versus Trastuzumab Plus Standard Chemotherapy as Adjuvant Therapy in Older Patients With HER2-Positive Breast Cancer. J Clin Oncol. 2021 Aug 1;39(22):2452-2462. doi: 10.1200/JCO.20.02751. Epub 2021 Apr 9.
• Sawaki M, Taira N, Uemura Y, Saito T, Baba S, Kobayashi K, Kawashima H, Tsuneizumi M, Sagawa N, Bando H, Takahashi M, Yamaguchi M, Takashima T, Nakayama T, Kashiwaba M, Mizuno T, Yamamoto Y, Iwata H, Kawahara T, Ohashi Y, Mukai H; RESPECT study group. Randomized Controlled Trial of Trastuzumab With or Without Chemotherapy for HER2-Positive Early Breast Cancer in Older Patients. J Clin Oncol. 2020 Nov 10;38(32):3743-3752. doi: 10.1200/JCO.20.00184. Epub 2020 Sep 16.

Drugs

Indications