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Survival Outcomes, Digital TILs, and On-treatment PET/CT During Neoadjuvant Therapy for HER2-positive Breast Cancer : Results from the Randomized PREDIX HER2 Trial

Matikas, Alexios (författare)
Karolinska Institutet,Karolinska Univ Hosp, Breast Ctr, Theme Canc, Stockholm, Sweden.;Karolinska Comprehens Canc Ctr, Stockholm, Sweden.;Karolinska Inst, Dept Oncol Pathol, Stockholm, Sweden.
Johansson, Hemming (författare)
Karolinska Inst, Dept Oncol Pathol, Stockholm, Sweden.
Grybäck, Per (författare)
Karolinska Institutet,Karolinska Inst, Dept Mol Med & Surg, Stockholm, Sweden.
visa fler...
Bjöhle, Judith (författare)
Karolinska Univ Hosp, Breast Ctr, Theme Canc, Stockholm, Sweden.;Karolinska Comprehens Canc Ctr, Stockholm, Sweden.
Acs, Balazs (författare)
Karolinska Institutet,Karolinska Inst, Dept Oncol Pathol, Stockholm, Sweden.;Karolinska Univ Hosp, Dept Clin Pathol & Canc Diagnost, Stockholm, Sweden.
Boyaci, Ceren (författare)
Karolinska Institutet,Karolinska Inst, Dept Oncol Pathol, Stockholm, Sweden.;Karolinska Univ Hosp, Dept Clin Pathol & Canc Diagnost, Stockholm, Sweden.
Lekberg, Tobias (författare)
Karolinska Univ Hosp, Breast Ctr, Theme Canc, Stockholm, Sweden.;Karolinska Comprehens Canc Ctr, Stockholm, Sweden.;Karolinska Inst, Dept Oncol Pathol, Stockholm, Sweden.
Fredholm, Hanna (författare)
Karolinska Institutet,Karolinska Univ Hosp, Breast Ctr, Theme Canc, Stockholm, Sweden.;Karolinska Comprehens Canc Ctr, Stockholm, Sweden.;Karolinska Inst, Dept Mol Med & Surg, Stockholm, Sweden.
Elinder, Ellinor (författare)
Soder Sjukhuset, Dept Oncol, Stockholm, Sweden.
Margolin, Sara (författare)
Karolinska Institutet,Soder Sjukhuset, Dept Oncol, Stockholm, Sweden.;Karolinska Inst, Sodersjukhuset, Dept Clin Sci & Educ, Stockholm, Sweden.
Isaksson-Friman, Erika (författare)
St Goran Hosp, Breast Ctr, Stockholm, Sweden.
Bosch, Ana (författare)
Skane Univ Hosp, Dept Hematol Oncol & Radiat Phys, Lund, Sweden.
Lindman, Henrik (författare)
Uppsala universitet,Institutionen för immunologi, genetik och patologi,Department of Oncology, Uppsala University Hospital, Uppsala, Sweden,Klinisk onkologi
Adra, Jamila (författare)
Sahlgrens Univ Hosp, Dept Oncol, S-17176 Gothenburg, Sweden.
Andersson, Anne (författare)
Umeå Univ Hosp, Dept Radiat Sci, Oncol Unit, Umeå, Sweden.
Agartz, Susanne (författare)
Karolinska Inst, Dept Oncol Pathol, Stockholm, Sweden.
Hellström, Mats (författare)
Karolinska Univ Hosp, Breast Ctr, Theme Canc, Stockholm, Sweden.;Karolinska Comprehens Canc Ctr, Stockholm, Sweden.
Zerdes, Ioannis (författare)
Karolinska Institutet,Karolinska Univ Hosp, Breast Ctr, Theme Canc, Stockholm, Sweden.;Karolinska Comprehens Canc Ctr, Stockholm, Sweden.;Karolinska Inst, Dept Oncol Pathol, Stockholm, Sweden.
Hartman, Johan (författare)
Karolinska Institutet,Karolinska Inst, Dept Oncol Pathol, Stockholm, Sweden.;Karolinska Univ Hosp, Dept Clin Pathol & Canc Diagnost, Stockholm, Sweden.
Bergh, Jonas (författare)
Karolinska Institutet,Karolinska Univ Hosp, Breast Ctr, Theme Canc, Stockholm, Sweden.;Karolinska Comprehens Canc Ctr, Stockholm, Sweden.;Karolinska Inst, Dept Oncol Pathol, Stockholm, Sweden.
Hatschek, Thomas (författare)
Karolinska Univ Hosp, Breast Ctr, Theme Canc, Stockholm, Sweden.;Karolinska Comprehens Canc Ctr, Stockholm, Sweden.;Karolinska Inst, Dept Oncol Pathol, Stockholm, Sweden.
Foukakis, Theodoros (författare)
Karolinska Institutet,Karolinska Univ Hosp, Breast Ctr, Theme Canc, Stockholm, Sweden.;Karolinska Comprehens Canc Ctr, Stockholm, Sweden.;Karolinska Inst, Dept Oncol Pathol, Stockholm, Sweden.
visa färre...
Karolinska Institutet Karolinska Univ Hosp, Breast Ctr, Theme Canc, Stockholm, Sweden;Karolinska Comprehens Canc Ctr, Stockholm, Sweden.;Karolinska Inst, Dept Oncol Pathol, Stockholm, Sweden. (creator_code:org_t)
American Association For Cancer Research (AACR), 2023
2023
Engelska.
Ingår i: Clinical Cancer Research. - : American Association For Cancer Research (AACR). - 1078-0432 .- 1557-3265. ; 29:3, s. 532-540
  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
Stäng  
  • Purpose:PREDIX HER2 is a randomized Phase II trial that compared neoadjuvant docetaxel, trastuzumab, and pertuzumab (THP) with trastuzumab emtansine (T-DM1) for HER2-positive breast cancer. Rates of pathologic complete response (pCR) did not differ between the two groups. Here, we present the survival outcomes from PREDIX HER2 and investigate metabolic response and tumor-infiltrating lymphocytes (TIL) as prognostic factors.Patients and Methods:In total, 202 patients with HER2-positive breast cancer were enrolled and 197 patients received six cycles of either THP or T-DM1. Secondary endpoints included event-free survival (EFS), recurrence-free survival (RFS), and overall survival (OS). Assessment with PET/CT was performed at baseline, after two and six treatment cycles. TILs were assessed manually at baseline biopsies, while image-based evaluation of TILs [digital TILs (DTIL)] was performed in digitized full-face sections.Results:After a median follow-up of 5.21 years, there was no difference between the two treatment groups in terms of EFS [HR = 1.26; 95% confidence interval (CI), 0.54–2.91], RFS (HR = 0.69; 95% CI, 0.24–1.93), or OS (HR = 0.52; 95% CI, 0.09–2.82). Higher SUVmax at cycle 2 (C2) predicted lower pCR (ORadj = 0.65; 95% CI, 0.48–0.87; P = 0.005) and worse EFS (HRadj = 1.27; 95% CI, 1.12–1.41; P < 0.001). Baseline TILs and DTILs provided additional prognostic information to clinical parameters and C2 SUVmax.Conclusions:Long-term outcomes following neoadjuvant T-DM1 were similar to neoadjuvant THP. SUVmax after two cycles of neoadjuvant therapy for HER2-positive breast cancer may be an independent predictor of both short- and long-term outcomes. Combined assessment with TILs may facilitate early selection of poor responders for alternative treatment strategies.

Ämnesord

MEDICIN OCH HÄLSOVETENSKAP  -- Klinisk medicin -- Cancer och onkologi (hsv//swe)
MEDICAL AND HEALTH SCIENCES  -- Clinical Medicine -- Cancer and Oncology (hsv//eng)

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