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Spots Global Cancer Trial Database for Neoadjuvant Biomarker ResearcH Study of Palbociclib Combined With Endocrine Therapy in Estrogen Receptor Positive/HER2 Negative Breast CAncer (NeoRHEA)

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Trial Identification

Brief Title: Neoadjuvant Biomarker ResearcH Study of Palbociclib Combined With Endocrine Therapy in Estrogen Receptor Positive/HER2 Negative Breast CAncer (NeoRHEA)

Official Title: Neoadjuvant Biomarker ResearcH Study of Palbociclib Combined With Endocrine Therapy in Estrogen Receptor Positive/HER2 Negative Breast CAncer

Study ID: NCT03065621

Interventions

Palbociclib

Study Description

Brief Summary: This is an open-label, single arm, phase 2 trial that will include pre or post-menopausal female subjects, that have ER-positive, HER2-negative early breast cancer. Subject will receive 4 cycles of palbociclib 125 mg (each cycle of palbociclib consists of treatment from D1 to D21 followed by a week of rest) combined with endocrine therapy given continuously (each cycle of endocrine therapy consists of treatment from D1 to D28). The endocrine therapy will be determined according to the menopausal status of the subject evaluated at the study screening.

Detailed Description: This is an open-label, single arm, phase 2 trial that will include pre or post-menopausal female subjects, that have ER-positive, HER2-negative early breast cancer. Subject will receive 4 cycles of palbociclib 125 mg (each cycle of palbociclib consists of treatment from D1 to D21 followed by a week of rest) combined with endocrine therapy given continuously (each cycle of endocrine therapy consists of treatment from D1 to D28). The endocrine therapy will be determined according to the menopausal status of the subject evaluated at the study screening. For post-menopausal subjects: endocrine therapy will consist of letrozole 2.5 mg continuously. For pre-menopausal or peri-menopausal subjects: endocrine therapy will consist of tamoxifen 20 mg continuously, combined or not with goserelin 3.6 mg monthly at the local investigator's discretion. Endocrine therapy for both groups should continue until the last day of palbociclib treatment (i.e. the day before surgery). Subject's response to therapy will be evaluated before and after the 4 cycles of treatment by ultrasound to determine response to therapy. Post treatment ultrasound should be performed 7 to 10 days before surgery (with a maximum delay of 3 days in case of delayed surgery date). Surgery will be performed 4 to 8 days after the end of the 4th cycle of study treatment. Biopsy samples will be collected after the subject's inclusion in the study and prior to Day 1 Cycle 1 of study treatment (pre-treatment biopsy) and will consist of collection of 4 core biopsies (2 FFPE and 2 Frozen). FFPE and frozen material will be collected from the surgical material left over, after sufficient and relevant parts has been retained to establish, improve or complement the diagnosis or treatment of the subject. One whole blood sample (1x10 mL) will also be collected after the subject's inclusion and prior to Day 1 Cycle 1 of study treatment. Blood samples for plasma processing (4x10 mL per time point) will be collected after the subject's inclusion and prior to Day 1 Cycle 1, prior to Day 1 Cycle 2 of study treatment, at surgery day (prior surgery) and one month after surgery. All the biological samples collected (pre-treatment biopsy, material from surgery and all blood samples) within the study are mandatory. The breast biopsy samples as well as imaging tumour assessment (ultrasound breast) performed prior to the signature of the study ICF are not admissible for assessment of study end-points and should be repeated within the required study time window. Information on patient survival and disease recurrence will be collected at least 30 months from the date of the end of study treatment (i.e., last visit of the last subject one month after surgery day, see definition in paragraph 11.3). Data collection will be made based on medical charts if a follow up visit was performed not earlier than February 2022. If the data is missing from medical charts (i.e. loss of follow up), a phone call to the subject's general practitionerwill be made. Primary objective : • To identify biomarkers of resistance to a 4-month preoperative treatment of palbociclib plus endocrine therapy defined as stable or progressive disease by ultrasound (based on WHO criteria) using RNA-seq of the baseline tumour biopsy. Secondary objectives : * To identify biomarkers of resistance to a 4-month preoperative treatment of endocrine therapy and palbociclib by correlating tumour response by ultrasound (mandatory) or magnetic resonance (optional) imaging (response will be assessed as continuous or categorical variable) with RNA-seq of the baseline tumour biopsy * To identify biomarkers of resistance to a 4-month preoperative treatment of palbociclib plus endocrine therapy defined as residual disease burden, RCB of 3 using RNA-seq of the baseline tumour biopsy * To identify biomarkers of resistance to a 4-month preoperative treatment of endocrine therapy and palbociclib defined as GGI high by RNA-seq of the residual tumour at surgery using RNA-seq of the baseline tumour biopsy * To understand mechanisms of resistance to the combination of endocrine therapy and palbociclib by comparing the transcriptome of tumours at baseline and at surgery using RNA-seq * To evaluate the safety of the combination of palbociclib plus endocrine therapy * To evaluate the role of plasma ctDNA in monitoring response/resistance to pre-operative treatment with endocrine therapy and palbociclib * To validate/further refine an 11-gene expression signature associated with response/resistance to palbociclib and endocrine treatment Exploratory objectives: * To compare changes in clonal composition, transcriptomic changes and changes in the open chromatin state of tumour cells using a combined genomic and transcriptomic (G\&T) single tumour cell analysis and chromatin accessibility single tumour cell analysis of exceptional responders and exceptional non-responders. Based on the above results, additional bulk or single cell analyses in the entire study cohort could be performed. * To evaluate associations between patient survival (distant relapse-free survival, relapse-free survival, invasive disease-free survival, overall survival) and the following : * Tumor clinicopathological characteristics and other biomarkers at baseline and/or surgery and/or their changes * Plasma ctDNA monitoring

Keywords

Eligibility

Minimum Age: 18 Years

Eligible Ages: ADULT, OLDER_ADULT

Sex: FEMALE

Healthy Volunteers: No

Locations

Institut Jules Bordet, Anderlecht, , Belgium

CHU Brugmann, Brussels, , Belgium

CHU Saint-Luc, Brussels, , Belgium

UZ Leuven Gasthuisberg, Leuven, , Belgium

CHU UCL Namur Sainte-Elisabeth, Namur, , Belgium

Contact Details

Name: Michail Ignatiadis, MD

Affiliation: Jules Bordet Institute

Role: STUDY_CHAIR

Useful links and downloads for this trial

Clinicaltrials.gov

Google Search Results

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