A Phase II Study of Adjuvant PALbociclib as an Alternative to CHemotherapy in Elderly patientS With High-risk ER+/HER2- Early Breast Cancer (Appalaches)

  • STATUS
    Recruiting
  • End date
    Sep 13, 2032
  • participants needed
    366
  • sponsor
    European Organisation for Research and Treatment of Cancer - EORTC
Updated on 16 October 2022
platelet count
paclitaxel
cyclophosphamide
estrogen
endocrine therapy
doxorubicin
anthracyclines
metastasis
neutrophil count
hormone therapy
HER2
her-2
human epidermal growth factor
estrogen receptor
invasive breast cancer
taxane
adjuvant chemotherapy
core needle biopsy
bilateral breast cancer

Summary

Phase II study to assess the efficacy of the combination of at least 5 year endocrine therapy and 2 year-palbociclib as adjuvant systemic treatment instead of adjuvant chemotherapy followed by endocrine therapy in older patients with stage II-III ER+/HER2- early breast cancer.

Description

The primary objective of this trial is to assess the efficacy of the combination of at least 5 year endocrine therapy and 2 year-palbociclib as adjuvant systemic treatment instead of adjuvant chemotherapy followed by endocrine therapy in older patients with stage II-III ER+/HER2- early breast cancer.

This is a two-arm open-label multi-center randomized (2:1) non-comparative phase II study in elderly patients with stage II/III, ER+, HER2- early breast cancer for whom treatment with chemotherapy is indicated.

Patients will be randomized with a 2:1 allocation rate to the following treatment arm:

  • experimental palbociclib arm: Standard adjuvant endocrine therapy for a duration of at least 5 years + palbociclib for a total duration of up to 2 years.
  • control chemotherapy arm: adjuvant chemotherapy (4 cycles of docetaxel/doxorubicin/epirubicin-cyclophosphamide; or of weekly paclitaxel D1, D8, and D15 q3w if a 3 weekly schedule is not desired), followed by standard adjuvant endocrine therapy for a duration of at least 5 years.

The primary endpoint of the study is the 3-year D-RFI rate in the experimental arm.

Details
Condition Breast Cancer Stage II, Breast Cancer Stage III
Treatment Paclitaxel, Palbociclib, Docetaxel / cyclophosphamide, doxorubicin/cyclophosphamide, epirubicin/cyclophosphamide
Clinical Study IdentifierNCT03609047
SponsorEuropean Organisation for Research and Treatment of Cancer - EORTC
Last Modified on16 October 2022

Eligibility

Yes No Not Sure

Inclusion Criteria

Women or men with stage II or stage III, early invasive breast cancer according to the UICC 8th edition for TNM classification
Histologically confirmed Estrogen Receptor ER+ (at least 10 % of cells staining positive for ER), Human Epidermal Growth Factor Receptor 2 (HER-2) negative, early invasive breast cancer based on results of local pathology. Testing may be performed on diagnostic core biopsy or resection specimen
In patients with multicentric, multifocal and/or bilateral breast cancer, all histopathologically examined invasive tumors must meet pathologic criteria regarding ER and HER2-status described above
Adjuvant chemotherapy indicated and feasible according to treating physician and patient, based on standard clinicopathological parameters (tumor size, lymph node involvement, general health status, proliferation marker, patient wish) and gene expression profile if available
Adjuvant chemotherapy combining both anthracycline and taxanes considered not indicated or not feasible according to treating physician
No evidence of macroscopic distant metastases, investigated according to local institutional guidelines
Age ≥70 years
Eastern Cooperative Oncology Group (ECOG) Performance status 0-2
Patient must have undergone breast +/- axillary surgery with curative intent for the current malignancy ≤8 weeks before randomization
The maximum duration from last surgery to the start of the first adjuvant treatment is 9 weeks
Patients must have sufficient resolution of any surgical side effects from the last surgery per physician assessment, with no active wound healing complications at the time of randomization
Incentive to undergo adjuvant radiation therapy when indicated per local institutional guidelines
Note: For patients in the palbociclib arm, radiation therapy when indicated has to start ≤9 weeks after last surgery. The endocrine therapy can be initiated during or after the radiation therapy but not later than 3 weeks after the last radiotherapy. Palbociclib has to start ≤3 weeks after the last radiotherapy. When radiation therapy is not indicated, endocrine therapy and palbociclib have to be initiated ≤9 weeks after last surgery
Note: For patients in the chemotherapy arm, chemotherapy has to be the first adjuvant treatment and has to start ≤9 weeks after the last surgery. When radiation therapy is indicated, this treatment has to start ≤6 weeks after the last chemotherapy administration. Adjuvant endocrine therapy can be initiated during or after the radiation therapy but not later than 3 weeks after the last radiotherapy. When radiation therapy is not indicated, endocrine therapy has to be initiated ≤6 weeks after last chemotherapy administration
Adequate organ function, evidenced by the following laboratory results within 3 weeks prior to inclusion
Hemoglobin ≥ 9 g/dL
Absolute neutrophil count (ANC) ≥ 1500/mm3
Platelet count ≥ 100,000/mm3
Total bilirubin ≤ 1.5 upper limit of normal (ULN), or total bilirubin ≤ 3.0 × ULN in patients with documented Gilbert's Syndrome
Glomerular Filtration Rate (GFR) ≥ 30 ml/min according to Modification of Diet in Renal Disease (MDRD) formula or Chronic Kidney Disease - Epidemiology Collaboration (CKD-EPI) formula or Cockcroft and Gault formula
Serum Glutamic Oxaloacetic Transaminase (Aspartate Transaminase), Serum Glutamic Pyruvic Transaminase (Alanine Transaminase) and alkaline phosphatase ≤ 2.5 × ULN
Patients must be able and willing to swallow and retain oral medication without a condition that would interfere with enteric absorption
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
Before patient registration/randomization, written informed consent must be obtained according to ICH/GCP, and national/local regulations

Exclusion Criteria

Previous history of invasive breast cancer
Systemic anticancer therapy prior to the breast cancer surgery
Prior therapy with any Cyclin-Dependent Kinase (CDK)4/6 inhibitor
Concurrent investigational agent within 28 days of randomization
Concomitant anticancer treatment with the exception of bone antiresorptive agents or Luteinizing Hormone-Releasing Hormone agonists in male patients treated with an aromatase-inhibitor
History of allergic reactions attributed to compounds of chemical or biological composition similar to palbociclib or to chemotherapy components
Medications or substances that are potent inhibitors or inducers of CYP3A isoenzymes within 7 days of randomization (see Chapter 5.6.3 for list of CYP3A inhibitors and inducers)
Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection (including known HIV, active hepatitis B and/or hepatitis C infection), symptomatic congestive heart failure, unstable angina pectoris, uncontrolled cardiac arrhythmia, or uncontrolled diabetes
Other malignancy within the last 5 years except: adequately treated non-metastatic non-melanoma skin cancer, curatively treated in situ cancer of the cervix, ductal carcinoma in situ of the breast
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