Neoadjuvant Response-guided Treatment of HER2 Positive Breast Cancer
PREDIX HER2
PREDIX HER2 - Neoadjuvant Response-guided Treatment of HER2 Positive Breast Cancer. Part of a Platform of Translational Phase II Trials Based on Molecular Subtypes
1 other identifier
interventional
202
1 country
7
Brief Summary
The purpose of this trial is to evaluate efficacy and toxicity of either the combination of docetaxel, trastuzumab sc and pertuzumab (arm A) or trastuzumab emtansin (arm B). Switch of therapy to the opposite treatment alternative is applicable in case of lack of response after two courses of treatment, or for medical reasons under exceptional circumstances (drug reaction, other medical conditions) at any point. After termination of the primary treatment follow-up for five years. A translational subprotocol is a mandatory part of the study protocol, with exception for the use of PET-CT evaluations.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_2
Started Nov 2014
Longer than P75 for phase_2
7 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
November 1, 2014
CompletedFirst Submitted
Initial submission to the registry
September 21, 2015
CompletedFirst Posted
Study publicly available on registry
October 6, 2015
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 1, 2019
CompletedStudy Completion
Last participant's last visit for all outcomes
February 1, 2029
ExpectedAugust 13, 2020
August 1, 2020
4.3 years
September 21, 2015
August 11, 2020
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Pathological objective response to primary medical treatment
Efficacy measure after 18 weeks of preoperative treatment, starting from the start of preoperative medical treatment until the date of surgery. Outcome should be received within not more than 4 weeks post surgery
At surgery
Secondary Outcomes (8)
Clinical/radiological objective response during neoadjuvant treatment
During the 18-week treatment period before surgery
Event-free survival
All events from date of randomization until follow-up to 10 years
Disease-free survival
During the follow-up to 10 years
Breast cancer specific survival
During the follow-up to 10 years
Overall survival
During the follow-up to 10 years
- +3 more secondary outcomes
Other Outcomes (1)
Changes of morphological, functional and biological characteristics of early breast cancer before and after exposure to cytotoxic and targeted treatment
5 years
Study Arms (2)
A standard treatment
ACTIVE COMPARATORdocetaxel + trastuzumab sc + pertuzumab. Treatment with all three drugs is given on day 1, repeated every three weeks. Six courses of preoperative treatment. Response evaluations after every 2nd course. In case of no change (NC), treatment is switched to arm B. Postoperatively, patients receive 2 courses of treatment with the combination epirubicin + cyclophosphamide (EC), followed by adjuvant trastuzumab, radiotherapy, eventually endocrine treatment.
B experimental treatment
EXPERIMENTALtrastuzumab emtansine. Treatment is given on day 1, repeated every three weeks. Six courses of preoperative treatment. Response evaluations after every 2nd course. In case of no change (NC), treatment is switched to arm A. Postoperatively, patients receive 4 courses of treatment with the combination epirubicin + cyclophosphamide (EC), followed by adjuvant trastuzumab, radiotherapy, eventually endocrine treatment.
Interventions
docetaxel 75-100 mg IV + trastuzumab sc 5 ml (600 mg) SC + pertuzumab 840 mg IV starting dose, subsequently 420 mg IV, repeated every 3 weeks, 6 courses
trastuzumab emtansine 3.6 mg/kg IV, repeated every 3 weeks, 6 courses
Eligibility Criteria
You may qualify if:
- Written informed consent
- Patients with breast cancer confirmed by histology, characterized by immunohistochemistry for ER, PR, HER2 and proliferation marker
- Tumor and blood samples available. HER2 type confirmed by ISH
- Age 18 years or older. Elderly patients in condition adequate for planned therapy
- Primary breast cancer \>20mm in diameter and/or verified lymph node metastases
- Adequate bone marrow, renal, hepatic and cardiac functions and no other uncontrolled medical or psychiatric disorders
- LVEF ≥55%
- ECOG performance status 0-1
- Primary breast cancer as defined in p. 5 plus at most 2 morphologically characterized well-defined distant metastases accessible for stereotactic radiotherapy, provided that this treatment is available
You may not qualify if:
- Distant metastases, including node metastases in the contralateral thoracic region or in the mediastinum
- Other malignancy diagnosed within the last five years, except for radically treated basal or squamous cell carcinoma of the skin or CIS of the cervix
- Patients in child-bearing age without adequate contraception
- Pregnancy or lactation
- Uncontrolled hypertension, heart, liver, kidney related or other medical or psychiatric disorders
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Thomas Hatscheklead
Study Sites (7)
Dept. of Oncology, Örebro University Hospital
Örebro, Närke, Sweden
Dept. of Oncology, Sahlgrenska University Hospital
Gothenburg, 413 45, Sweden
Dept. of Oncology, Skåne University Hospital
Lund, Sweden
Dept. of Oncology, Karolinska University Hospital
Stockholm, 17176, Sweden
Dept. of Oncology, Sundsvall Hospital
Sundsvall, 851 86, Sweden
Dept. of Oncology, University Hospital of Umeå
Umeå, Sweden
Dept. of Oncology, Uppsala University Hospital
Uppsala, Sweden
Related Publications (3)
Zhu Y, Zerdes I, Matikas A, Cruz IR, Bergqvist M, Elinder E, Bosch A, Lindman H, Einbeigi Z, Andersson A, Carlsson L, Dreifaldt AC, Isaksson-Friman E, Hellstrom M, Johansson H, Wang K, Bergh JCS, Hatschek T, Foukakis T. The role of serum thymidine kinase 1 activity in neoadjuvant-treated HER2-positive breast cancer: biomarker analysis from the Swedish phase II randomized PREDIX HER2 trial. Breast Cancer Res Treat. 2024 Apr;204(2):299-308. doi: 10.1007/s10549-023-07200-x. Epub 2024 Jan 4.
PMID: 38175448DERIVEDMatikas A, Johansson H, Gryback P, Bjohle J, Acs B, Boyaci C, Lekberg T, Fredholm H, Elinder E, Margolin S, Isaksson-Friman E, Bosch A, Lindman H, Adra J, Andersson A, Agartz S, Hellstrom M, Zerdes I, Hartman J, Bergh J, Hatschek T, Foukakis T. Survival Outcomes, Digital TILs, and On-treatment PET/CT During Neoadjuvant Therapy for HER2-positive Breast Cancer: Results from the Randomized PREDIX HER2 Trial. Clin Cancer Res. 2023 Feb 1;29(3):532-540. doi: 10.1158/1078-0432.CCR-22-2829.
PMID: 36449695DERIVEDHatschek T, Foukakis T, Bjohle J, Lekberg T, Fredholm H, Elinder E, Bosch A, Pekar G, Lindman H, Schiza A, Einbeigi Z, Adra J, Andersson A, Carlsson L, Dreifaldt AC, Isaksson-Friman E, Agartz S, Azavedo E, Gryback P, Hellstrom M, Johansson H, Maes C, Zerdes I, Hartman J, Brandberg Y, Bergh J. Neoadjuvant Trastuzumab, Pertuzumab, and Docetaxel vs Trastuzumab Emtansine in Patients With ERBB2-Positive Breast Cancer: A Phase 2 Randomized Clinical Trial. JAMA Oncol. 2021 Sep 1;7(9):1360-1367. doi: 10.1001/jamaoncol.2021.1932.
PMID: 34165503DERIVED
Related Links
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- STUDY CHAIR
Thomas Hatschek, Assoc prof
Breast-sarcoma unit, Dept. of Oncology, Karolinska university hospital
- STUDY DIRECTOR
Jonas Bergh, Professor
Dept. of Oncology-Pathology, Karolinska Institutet
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR INVESTIGATOR
- PI Title
- Sen. Consultant, MD, PhD, Assoc. professor
Study Record Dates
First Submitted
September 21, 2015
First Posted
October 6, 2015
Study Start
November 1, 2014
Primary Completion
February 1, 2019
Study Completion (Estimated)
February 1, 2029
Last Updated
August 13, 2020
Record last verified: 2020-08