PErsonalized TREatment of High-risk MAmmary Cancer - the PETREMAC Trial
- Conditions
- Breast Cancer
- Interventions
- Radiation: Postoperative radiotherapy breast/chest wall + regional lymph nodesDrug: Neoadjuvant endocrine therapy + palbociclib (if lack of response to endocrine therapy alone)Procedure: Breast conserving surgery or mastectomy + SNB/axillary dissection
- Registration Number
- NCT02624973
- Lead Sponsor
- Haukeland University Hospital
- Brief Summary
Breast cancer is an optimal "model disease" for studying personalized medicine. Breast cancer was the first malignancy for which a predictive factor forecasting response to therapy was identified nearly 50 years ago; the expression of the estrogen receptor (ER). Furthermore, breast cancer is by far the malignancy in which prognostic and predictive factors have been most extensively studied. Primary medical treatment (pre-surgical medical therapy) offers a unique setting to explore predictive factors due to the fact that primary breast cancers are easily accessible to repeated tissue sampling and evaluation of therapy response both clinically and radiologically. For many years, the investigators have studied predictive factors in primary medical treatment of breast cancer. In the present project, the investigators will implement a new trial concept where the current knowledge from previous trials with respect to predictive markers (hormone receptors, HER2; TP53, CHEK2 and RB1), will be combined with massive parallel sequencing (MPS). Thereby, the investigators aim to design the "next-generation" primary medical treatment where 1) therapy regimens are individualized based on a limited number of known predictive factors and, 2) MPS is used to explore additional predictive factors and their co-regulators in order to fully identify the mechanisms of drug sensitivity / resistance across individual tumours and pave the way for further personalized breast cancer therapy in the future. As for the new era of "genomic medicine", the current trial concept will allow individual tumours to be characterized by their unique gene mutation / epigenetic modification profile upfront, to allocate patients to their optimal personalized medicine as compared to "classical" drug testing through phase II/III trials.
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- ACTIVE_NOT_RECRUITING
- Sex
- All
- Target Recruitment
- 200
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Previously untreated, histologically confirmed non-inflammatory breast cancer, >4 cm in diameter and /or metastatic ipsilateral axillary deposits for which the smallest diameter of the largest node >2 cm by CT or ultrasound scan.
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WHO performance status 0-1
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Known tumor ER, PGR, HER2 and TP53 status.
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Known tumor Ki67 percentage (if ER/PGR>50% and TP53 wt status).
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Distant metastasis not suspected. Patients will undergo radiology exams during screening phase, after signing the informed consent.
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Age >18 years
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Patients must have clinically and/or radiographically documented measurable breast cancer according to RECIST.
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Radiology studies (CT thorax/abdomen and bone scintigraphy/bone scan) must be performed within 28 days prior to registration.
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Absence of any psychological, familial, sociological or geographical condition potentially hampering compliance with the study protocol and follow-up schedule; those conditions should be discussed with the patient before registration in the trial
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Before patient registration/randomization, written informed consent must be given according to national and local regulations.
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For arms B-H:
- Neutrophils > 1.5 x 109/L
- Platelets > 100 x 109/L
- Bilirubin < 2 x upper limit normal (ULN). For patients with Gilbert´s syndrome bilirubin >2 x ULN is accepted if there is no evidence of biliary obstruction.
- Serum creatinine < 1.5 x ULN
- ALT and Alk Phos (ALP) <2.5 x ULN
- INR < 1.5
- Unstable angina pectoris or heart failure
- Other co-morbidity that, based on the assessment of the treating physician, may preclude the use of chemotherapy at actual doses.
- Pregnant or lactating patients can not be included.
- Clinical evidence of serious coagulopathy. Prior arterial/venous thrombosis or embolism does not exclude patients from inclusion, unless patient is considered unfit by study oncologist.
- Patient not able to give an informed consent or comply with study regulations as deemed by study investigator.
- Active cystitis (to be treated upfront)
- Active bacterial infections
- Urinary obstruction
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- SINGLE_GROUP
- Arm && Interventions
Group Intervention Description A Adjuvant palbociclib (if palbociclib given neoadjuvant) ER/PGR\>50% TP53 wt A Adjuvant Epirubicin+ Cyclophosphamide ER/PGR\>50% TP53 wt B Neoadjuvant docetaxel + cyclophosphamide ER/PGR\>50% TP53 mutated F Neoadjuvant docetaxel + cyclophosphamide + trastuzumab + pertuzumab HER2+ TP53 mutated F Postoperative radiotherapy breast/chest wall + regional lymph nodes HER2+ TP53 mutated F Adjuvant trastuzumab HER2+ TP53 mutated F Adjuvant letrozole (postmenopausal women) HER2+ TP53 mutated G Neoadjuvant olaparib Triple negative breast cancer TP53 wt E Adjuvant trastuzumab HER2+ TP53 wt E Adjuvant letrozole (postmenopausal women) HER2+ TP53 wt G Neoadjuvant cyclophosphamide (after 10 weeks of olaparib alone) Triple negative breast cancer TP53 wt E Adjuvant tamoxifen + goserelin (premenopausal women) HER2+ TP53 wt G Postoperative radiotherapy breast/chest wall + regional lymph nodes Triple negative breast cancer TP53 wt A Neoadjuvant letrozole (postmenopausal women) ER/PGR\>50% TP53 wt A Neoadjuvant endocrine therapy + palbociclib (if lack of response to endocrine therapy alone) ER/PGR\>50% TP53 wt A Breast conserving surgery or mastectomy + SNB/axillary dissection ER/PGR\>50% TP53 wt A Postoperative radiotherapy breast/chest wall + regional lymph nodes ER/PGR\>50% TP53 wt F Breast conserving surgery or mastectomy + SNB/axillary dissection HER2+ TP53 mutated B Breast conserving surgery or mastectomy + SNB/axillary dissection ER/PGR\>50% TP53 mutated B Postoperative radiotherapy breast/chest wall + regional lymph nodes ER/PGR\>50% TP53 mutated C Breast conserving surgery or mastectomy + SNB/axillary dissection ER/PGR\<50% TP53 wt C Postoperative radiotherapy breast/chest wall + regional lymph nodes ER/PGR\<50% TP53 wt D Breast conserving surgery or mastectomy + SNB/axillary dissection ER/PGR\<50% TP53 mutated D Postoperative radiotherapy breast/chest wall + regional lymph nodes ER/PGR\<50% TP53 mutated D Adjuvant letrozole (postmenopausal women) ER/PGR\<50% TP53 mutated E Postoperative radiotherapy breast/chest wall + regional lymph nodes HER2+ TP53 wt E Breast conserving surgery or mastectomy + SNB/axillary dissection HER2+ TP53 wt G Breast conserving surgery or mastectomy + SNB/axillary dissection Triple negative breast cancer TP53 wt H Breast conserving surgery or mastectomy + SNB/axillary dissection Triple negative breast cancer TP53 mutated H Postoperative radiotherapy breast/chest wall + regional lymph nodes Triple negative breast cancer TP53 mutated B Adjuvant tamoxifen + goserelin (premenopausal women) ER/PGR\>50% TP53 mutated B Adjuvant letrozole (postmenopausal women) ER/PGR\>50% TP53 mutated C Neoadjuvant docetaxel ER/PGR\<50% TP53 wt C Adjuvant letrozole (postmenopausal women) ER/PGR\<50% TP53 wt D Neoadjuvant docetaxel + cyclophosphamide ER/PGR\<50% TP53 mutated C Adjuvant tamoxifen + goserelin (premenopausal women) ER/PGR\<50% TP53 wt E Neoadjuvant docetaxel + trastuzumab + pertuzumab HER2+ TP53 wt D Adjuvant tamoxifen + goserelin (premenopausal women) ER/PGR\<50% TP53 mutated F Adjuvant tamoxifen + goserelin (premenopausal women) HER2+ TP53 mutated A Neoadjuvant tamoxifen + goserelin (premenopausal women) ER/PGR\>50% TP53 wt A Adjuvant letrozole (postmenopausal women) ER/PGR\>50% TP53 wt A Adjuvant tamoxifen + goserelin (premenopausal women) ER/PGR\>50% TP53 wt H Neoadjuvant olaparib Triple negative breast cancer TP53 mutated H Neoadjuvant cyclophosphamide (after 10 weeks of olaparib alone) Triple negative breast cancer TP53 mutated
- Primary Outcome Measures
Name Time Method Predictive and prognostic value of mutations in 300 cancer-related genes assessed in breast cancer tissue by next generation sequencing before starting neoadjuvant therapy. Ten years Primary endpoint
- Secondary Outcome Measures
Name Time Method Tumor Ki67 reduction after 2 and 5 weeks of treatment in Arm A Assessment for each patient after 2 and 5 weeks of treatment. Four years - summary of all patients in arm A. Secondary endpoint
To estimate recurrence-free and overall survival when patients are treated with the optimal personalized treatment available as of 2015, using historical data for comparison Ten years Secondary endpoint
To evaluate the percentage of patients completing neoadjuvant treatment and completing surgery Four years Secondary endpoint
Breast conserving surgery rate (potential to avoid mastectomy) Four years Secondary endpoint
Number of participants with treatment-related adverse events as assessed by CTCAE v4.0 Ten years Secondary endpoint
To assess genetic/epigenetic changes within the tumor tissue during therapy Before vs. 16-24 wks after treatment start. Four years: summary of all patients treated. Secondary endpoint
The objective response rate (ORR) of personalized medicine, compared to ORR for best standard-of-care using historical data for comparison Four years Secondary endpoint
Trial Locations
- Locations (7)
Helse Fonna
🇳🇴Haugesund, Rogaland, Norway
Helse Nord/UNN
🇳🇴Tromsø, Troms, Norway
Helse Stavanger
🇳🇴Stavanger, Rogaland, Norway
Haukeland University Hospital
🇳🇴Bergen, Hordaland, Norway
Akershus University Hospital
🇳🇴Lørenskog, Akershus, Norway
Helse Førde
🇳🇴Førde, Sogn Og Fjordande, Norway
St. Olavs Hospital
🇳🇴Trondheim, Sør Trøndelag, Norway