Pregnancy Outcome and Safety of Interrupting Therapy for Women With Endocrine Responsive Breast Cancer

NCT ID: NCT02308085

Last Updated: 2025-06-05

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ACTIVE_NOT_RECRUITING

Clinical Phase

NA

Total Enrollment

518 participants

Study Classification

INTERVENTIONAL

Study Start Date

2014-12-04

Study Completion Date

2028-12-31

Brief Summary

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The best available evidence suggests that pregnancy after breast cancer does not increase a woman's risk of developing a recurrence from her breast cancer. In particular, the most recent data suggest that this is the case also in women with a hormone receptor-positive breast cancer. There is also no indication of increased risk for delivery complications or for the newborn. The aim of the study is to investigate if temporary interruption of endocrine therapy, with the goal to permit pregnancy, is associated with a higher risk of breast cancer recurrence.The study aims also to evaluate different specific indicators related to fertility, pregnancy and breast cancer biology in young women. A psycho-oncological companion study on fertility concerns, psychological well-being and decisional conflicts will be conducted in interested Centers.

Detailed Description

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Recent decades have witnessed a delay in childbearing for a variety of reasons including cultural, educational, and professional. As a consequence, breast cancer in young women often occurs before the completion of reproductive plans. Infertility has a significant impact on quality of life, resulting in substantial distress in younger women with breast cancer and influencing treatment decisions in a consistent proportion of patients.The best available evidence suggests that pregnancy after breast cancer does not increase a woman's risk of developing a recurrence.For women desiring pregnancy after a breast cancer, 5-10 years of endocrine therapy may substantially reduce the chance of conception; however, a shorter duration of endocrine therapy in this population has not been studied in a prospective manner.

Birth outcome after breast cancer has not been shown to be different from that of the normal population, but increased risks of delivery complications, cesarean section, preterm birth and low birth weight have been reported.

Endocrine agents are potentially teratogenic: taking into account their median half-life, waiting 3 months after their interruption before attempting conception is considered safe.

The limited evidence available on breastfeeding after breast cancer reports successful lactation from the treated breast in approximately 30% of women without detrimental effect on survival. No prospective definitive data are available.

Conditions

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Early Breast Cancer

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Endocrine therapy interruption

Endocrine therapy interruption after having completed between ≥ 18 months and ≤ 30 months.

Group Type EXPERIMENTAL

Endocrine therapy interruption

Intervention Type OTHER

3 months wash-out between treatment interruption and pregnancy attempt. Up to 2 years interruption to allow pregnancy, delivery, breastfeeding or failure to conceive.

Endocrine therapy resumption. Completion of full duration of endocrine therapy according to individual risk, institutional policy or patient's preference.

Interventions

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Endocrine therapy interruption

3 months wash-out between treatment interruption and pregnancy attempt. Up to 2 years interruption to allow pregnancy, delivery, breastfeeding or failure to conceive.

Endocrine therapy resumption. Completion of full duration of endocrine therapy according to individual risk, institutional policy or patient's preference.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Age ≥ 18 and ≤ 42 years at enrollment.
* Has received adjuvant endocrine therapy (SERM alone, GnRH analogue plus SERM or AI) for ≥18 months but ≤30 months for early breast cancer.

Note: Patients who have received neo/adjuvant endocrine treatment within a clinical trial and patients who have received pharmaco-prevention are eligible.

* The adjuvant endocrine therapy must have stopped within 1 month prior to enrollment.
* Patient wishes to become pregnant. Note: Patients who have undergone oocyte/embryo/ovarian tissue cryopreservation at breast cancer diagnosis and/or have a previous history of assisted reproductive technology (ART) are eligible.
* Breast cancer for which patient is receiving endocrine therapy must have been histologically-proven stage I-III, endocrine-responsive (i.e., estrogen and/or progesterone receptor positive, according to local definition of positive, determined using immunohistochemistry (IHC)), and treated with curative intent.

Note:

* Patients with synchronous bilateral invasive breast cancer (diagnosed histologically within 2 months) are eligible.
* Patient with invasive breast cancer or synchronous bilateral invasive breast cancer (diagnosed histologically within 2 months) during pregnancy are eligible.
* Patients with BRCA1/2 mutations are eligible.
* Patients could have received neo/adjuvant chemotherapy, or other systemic therapy (e.g., neo/adjuvant HER2-targeted therapy) according to institutional policy and patient's desire.
* Patient must be premenopausal at breast cancer diagnosis, as determined locally and documented in patient record.
* Patient must be without clinical evidence of loco-regional and distant disease, as evaluated according to institutional assessment standards and documented in the patient record.
* Written informed consent (IC) for trial participation must be signed and dated by the patient and the investigator prior to enrollment.
* Written consent to biological material submission, indicating the patient has been informed of and agrees to tissue and blood material use, transfer and handling, must be signed and dated by the patient and the investigator prior to any procedures specific for this trial.
* The patient has been informed of and agrees to data transfer and handling, in accordance with national data protection guidelines.
* Patient must be accessible for follow-up.

Exclusion Criteria

* Post-menopausal patients at BC diagnosis, as determined locally.
* History of hysterectomy, bilateral oophorectomy or ovarian irradiation.
* Patients with current local, loco-regional relapse and/or distant metastatic breast cancer.
* Patients with a history of prior (ipsi- and/or contralateral) invasive BC.
* Patients with previous or concomitant non-breast invasive malignancy.
* Exceptions are limited exclusively to patients with the following previous malignancies, if adequately treated: basal or squamous cell carcinoma of the skin, in situ non-breast carcinoma, contra- or ipsilateral in situ breast carcinoma, stage Ia carcinoma of the cervix.
* Concurrent disease or condition that would make the patient inappropriate for study participation or any serious medical disorder that would interfere with the patient's safety.
* Patients with a history of noncompliance to medical treatments and/or considered potentially unreliable.
* Patients with psychiatric, addictive, or any disorder that would prevent compliance with protocol requirements.
Minimum Eligible Age

18 Years

Maximum Eligible Age

42 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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Alliance for Clinical Trials in Oncology

OTHER

Sponsor Role collaborator

Canadian Cancer Trials Group

NETWORK

Sponsor Role collaborator

Breast International Group

OTHER

Sponsor Role collaborator

ETOP IBCSG Partners Foundation

NETWORK

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Olivia Pagani, MD

Role: STUDY_CHAIR

Oncology Institue of Southern Switzerland (IOSI)

Locations

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Cedars Sinai Medical Centre

Los Angeles, California, United States

Site Status

Stanford Cancer Institute

Palo Alto, California, United States

Site Status

Sharp Memorial Hospital

San Diego, California, United States

Site Status

University of Colorado Cancer Centre - Anschutz Cancer Pavilion

Aurora, Colorado, United States

Site Status

Rocky Mountain Cancer Center

Boulder, Colorado, United States

Site Status

SCL Health Saint Joseph Hospital

Denver, Colorado, United States

Site Status

Poudre Valley Hospital

Fort Collins, Colorado, United States

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Smilow Cancer Hospital-Derby Care Center

Derby, Connecticut, United States

Site Status

Smilow Cancer Hospital Care Center-Fairfield

Fairfield, Connecticut, United States

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Smilow Cancer Hospital Care Center at Saint Francis

Hartford, Connecticut, United States

Site Status

Yale University - Yale Cancer Centre

New Haven, Connecticut, United States

Site Status

Yale-New Haven Hospital North Haven Medical Center

North Haven, Connecticut, United States

Site Status

Smilow Cancer Hospital-Orange Care Center

Orange, Connecticut, United States

Site Status

Smilow Cancer Hospital-Torrington Care Center

Torrington, Connecticut, United States

Site Status

Smilow Cancer Hospital Care Center-Trumbull

Trumbull, Connecticut, United States

Site Status

Smilow Cancer Hospital-Waterbury Care Center

Waterbury, Connecticut, United States

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Helen F. Graham Cancer Center

Newark, Delaware, United States

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Christiana Care Health System-Christiana Hospital

Newark, Delaware, United States

Site Status

Medical Oncology Hematology Consultants PA

Newport, Delaware, United States

Site Status

Regional Hematology Oncology Practice Associates

Newport, Delaware, United States

Site Status

Georgetown University Hospital

Washington D.C., District of Columbia, United States

Site Status

Sibley Memorial Hospital

Washington D.C., District of Columbia, United States

Site Status

Emory University Hospital Midtown

Atlanta, Georgia, United States

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Emory University

Atlanta, Georgia, United States

Site Status

Straub Clinic and Hospital

Honolulu, Hawaii, United States

Site Status

OnCare Hawaii Inc - POB I

Honolulu, Hawaii, United States

Site Status

Queen's Medical Centre

Honolulu, Hawaii, United States

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OnCare Hawaii-Kuakini

Honolulu, Hawaii, United States

Site Status

John H Stroger Jr Hospital of Cook County

Chicago, Illinois, United States

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Carle on Vermilion

Danville, Illinois, United States

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Carle Physician Group - Effingham

Effingham, Illinois, United States

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NorthShore University HealthSystem-Evanston Hospital

Evanston, Illinois, United States

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Northwestern University

Evanston, Illinois, United States

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NorthShore University Health System - Glenbrook Hospital

Glenview, Illinois, United States

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NorthShore Unversity Health System - Highland Park Hospital

Highland Park, Illinois, United States

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Mattoon Charleston Primary Care

Mattoon, Illinois, United States

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NorthShore Medical Centre

Skokie, Illinois, United States

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Carle Cancer Centre

Urbana, Illinois, United States

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The Carle Foundation Hospital

Urbana, Illinois, United States

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Indiana University

Indianapolis, Indiana, United States

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Greater Baltimore Medical Centre

Baltimore, Maryland, United States

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Johns Hopkins University

Baltimore, Maryland, United States

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Dana Farber Cancer Institute

Boston, Massachusetts, United States

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Saint Joseph Mercy Hospital

Ann Arbor, Michigan, United States

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IHA Hematology Consultants-Brighton

Brighton, Michigan, United States

Site Status

Saint Joseph Mercy Hospital - Brighton

Brighton, Michigan, United States

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IHA Hematology Consultants-Canton

Canton, Michigan, United States

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Saint Joseph Mercy Hospital- Canton

Canton, Michigan, United States

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IHA Hematology Consultants-Chelsea

Chelsea, Michigan, United States

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Saint Joseph Mercy Hospital - Chelsea

Chelsea, Michigan, United States

Site Status

IHA Hematology Oncology Consultants-Ann Arbor

Ypsilanti, Michigan, United States

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Sanford Clinic North - Bemidji

Bemidji, Minnesota, United States

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Mercy Hospital

Coon Rapids, Minnesota, United States

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Essentia Health Cancer Center

Duluth, Minnesota, United States

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Fairview Southdale Hospital

Edina, Minnesota, United States

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St John's Hospital

Maplewood, Minnesota, United States

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Abbott-Northwestern Hospital, 800 East 28th Street

Minneapolis, Minnesota, United States

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Hennepin County Medical Center - Cancer Center

Minneapolis, Minnesota, United States

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Mayo Clinic

Rochester, Minnesota, United States

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Park Nicollet Methodist Hospital

Saint Louis Park, Minnesota, United States

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Regions Hospital

Saint Paul, Minnesota, United States

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Missouri Baptist Medical Center

St Louis, Missouri, United States

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Bozeman Deaconess Hospital

Bozeman, Montana, United States

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Dartmouth Hitchcock Medical Center/Norris Cotton Cancer Center

Lebanon, New Hampshire, United States

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University of New Mexico Cancer Center

Albuquerque, New Mexico, United States

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Weill Medical College of Cornell University

New York, New York, United States

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SUNY Upstate Medical University

Syracuse, New York, United States

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Montefiore Medical Center - Einstein Campus, 1695 Eastchester Road

The Bronx, New York, United States

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Montefiore Medical Center-Weiler Hospital

The Bronx, New York, United States

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Montefiore Medical Center - Moses Campus, 111 East 210th Street

The Bronx, New York, United States

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Dickstein Cancer Treatment Centre

White Plains, New York, United States

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UNC Lineberger Comprehensive Cancer Center

Chapel Hill, North Carolina, United States

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Southeastern Medical Oncology Centre

Clinton, North Carolina, United States

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Southeastern Medical Oncology Centre

Goldsboro, North Carolina, United States

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Margaret R Pardee Memorial Hospital

Hendersonville, North Carolina, United States

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Southeastern Medical Oncology Centre

Jacksonville, North Carolina, United States

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Southeastern Medical Oncology Centre

Wilson, North Carolina, United States

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Sanford Bismark Medical Centre

Bismarck, North Dakota, United States

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Sanford Roger Maris Cancer Centre

Fargo, North Dakota, United States

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Sanford Medical Centre

Fargo, North Dakota, United States

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Case Western Reserve University

Cleveland, Ohio, United States

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Ohio State University

Columbus, Ohio, United States

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Chagrin Highlands

Orange, Ohio, United States

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UPMC-Magee Womens Hospital

Pittsburgh, Pennsylvania, United States

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Women and Infants Hospital of Rhode Island

Providence, Rhode Island, United States

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Greenville Health System Cancer Institute-Butternut

Greenville, South Carolina, United States

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Greenville Health System Cancer Institute-Faris

Greenville, South Carolina, United States

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Greenville Health System Cancer Institute-Eastside

Greenville, South Carolina, United States

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Greenville Health System Cancer Institute-Greer

Greer, South Carolina, United States

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Greenville Health System Cancer Institute-Seneca

Seneca, South Carolina, United States

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Spartanburg Medical Center

Spartanburg, South Carolina, United States

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Greenville Health System Cancer Institute-Spartanburg

Spartanburg, South Carolina, United States

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Sanford Cancer Centre Oncology Clinic

Sioux Falls, South Dakota, United States

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Sanford USD Medical Centre - Sioux Falls

Sioux Falls, South Dakota, United States

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Doctor's Hospital of Laredo

Laredo, Texas, United States

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Huntsman Cancer Institute / University of Utah

Salt Lake City, Utah, United States

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University of Vermont Medical Centre

Burlington, Vermont, United States

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Bon Secours Memorial Regional Medical Centre

Mechanicsville, Virginia, United States

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Bon Secours Saint Francis Medical Centre

Midlothian, Virginia, United States

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Bon Secours Saint Mary's Hospital

Richmond, Virginia, United States

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Fred Hutchinson Cancer Research Center

Seattle, Washington, United States

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Seattle Cancer Care Alliance

Seattle, Washington, United States

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University of Washington Medical Center

Seattle, Washington, United States

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St John of God Subiaco Hospital

Perth, Western Australia, Australia

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Univ. Klinik f. Frauenheilkunde u. Geburtshilfe

Graz, , Austria

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Univ. Klinik f. Frauenheilkunde Innsbruck

Innsbruck, , Austria

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LKH Salzburg

Salzburg, , Austria

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Med. Univ. Klinik f. Chir

Vienna, , Austria

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Cliniques Universitaires Saint-Luc

Brussels, , Belgium

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Cliniques Universitaires Saint-Luc Brussels

Brussels, , Belgium

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Institut Jules Bordet

Brussels, , Belgium

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UZ Leuven

Leuven, , Belgium

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C.H.U. Sart-Tilman

Liège, , Belgium

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Clinique St.Elizabeth

Namur, , Belgium

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Tom Baker Cancer Centre

Calgary, Alberta, Canada

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Vancouver Cancer Centre

Vancouver, British Columbia, Canada

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St Michael's Hospital

Toronto, Ontario, Canada

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Mount Sinai Hospital

Toronto, Ontario, Canada

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Odette Cancer Centre - Sunnybrook Health Sciences Centre

Toronto, Ontario, Canada

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CHUM - Centre Hospitalier de l'Universite de Montreal

Montreal, Quebec, Canada

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CHA-Hopital Du St-Sacrement

Québec, Quebec, Canada

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Centre Hospitalier Universitaire de Sherbrooke

Sherbrooke, Quebec, Canada

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Rigshospitalet

Copenhagen, , Denmark

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Institut Bergonie

Bordeaux, , France

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Centre Oscar Lambret

Lille, , France

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French Lyon Cancer Center

Lyon, , France

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APHP, Tenon Hospital in Paris

Paris, , France

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University General Hospital of Heraklion

Stavrakia, Crete, Greece

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Laso General Hospital, First Department of Medical Oncology

Athens, , Greece

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Debrecen University Dep. of Oncology

Debrecen, , Hungary

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St Vincent's University Hospital

Dublin, , Ireland

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St. James's Hospital

Dublin, , Ireland

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Galway University Hospital

Galway, , Ireland

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University Hospital Limerick

Limerick, , Ireland

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University Hospital Waterford

Waterford, , Ireland

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Shaare Zedek Medical Center

Jerusalem, , Israel

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Chaim Sheba Medical Center

Tel Litwinsky, , Israel

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Ospedale di Prato

Prato, Firenze, Italy

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U.O Medicina Oncologica Ospedale di Carpi

Carpi, Modena, Italy

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Ospedale di Trento

Trento, Trento, Italy

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Multimedica Spa

Castellanza, Vareze, Italy

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Centro di Riferimento Oncologico

Aviano, , Italy

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Ospedale degli Infermi - S. C. Oncologia Medica

Biella, , Italy

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Azienda Sanitaria di Bolzano

Bolzano, , Italy

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Istituto Nazionale Ricerca Cancro

Genova, , Italy

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Istituto scientifico Romagnolo per lo studio e la cura

Meldola, , Italy

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Istituto Europeo di Oncologia (IEO)

Milan, , Italy

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University of Eastern Piedmont

Novara, , Italy

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Salvatore Maugeri Foundation - Medical Oncology Unit

Pavia, , Italy

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UO Oncologia, Rimini Hospital

Rimini, , Italy

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Regina Elena National Cancer Institute

Rome, , Italy

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AO Universitaria Ospedale Di Circolo e Fondazione

Varese, , Italy

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Ospedale Belcolle di Viterbo

Viterbo, , Italy

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Kansai Rosai Hospital

Amagasaki, Hyōgo, Japan

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Seirei Hamamatsu General Hospital

Hamamatsu, Shizuoka, Japan

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NHO Kyushu Cancer Centre, 3-1-1 Notame Minami-ku Fukuoka-shi

Fukuoka, , Japan

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Social Medical Corporation Hakuaikai Sagara Hospital

Kagoshima, , Japan

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St Marianna University School of Medicine Hospital

Kawasaki, , Japan

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Kyoto University Hospital

Kyoto, , Japan

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NHO Shikoku Cancer Center

Matsuyama, , Japan

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Toranomon Hospital

Minato-ku, Tokyo, , Japan

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Kamiiida Daiichi General Hospital

Nagoya, , Japan

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Okayama University Hospital

Okayama, , Japan

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NHO Osaka National Hospital

Ōsaka, , Japan

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Tohoku University Hospital

Sendai, , Japan

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National Cancer Center for Global Medicine

Tokyo, , Japan

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National Cancer Center Hospital

Tokyo, , Japan

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Showa University Hospital

Tokyo, , Japan

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St Luke's International Hospital

Tokyo, , Japan

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The Cancer Institute Hospital of JFCR

Tokyo, , Japan

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University of Tsukuba

Tsukuba, , Japan

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American University of Beirut Medical Center

Beirut, , Lebanon

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Leiden University Medical Centre, Albinusdreef 2, Postbus 9600

Leiden, , Netherlands

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Norwegian Radium Hospital (Oslo University)

Oslo, , Norway

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Champalimaud Cancer Center - Breast Cancer Unit

Lisbon, , Portugal

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Institute of Oncology & Radiology of Serbia

Belgrade, , Serbia

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Institute of Oncology Ljubljana - Medical Oncology Department

Ljubljana, , Slovenia

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Samsung Medical Center

Seoul, , South Korea

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Asan Medical Center

Seoul, , South Korea

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Seoul National University Hospital

Seoul, , South Korea

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Hospital Clinico Universitario Virgen de la Arrixaca

El Palmar, Murcia, Spain

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Hospital Universitario Vall d'Hebron

Barcelona, , Spain

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Hospital General de Catalunya

Barcelona, , Spain

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Hospital Universitario Donostia

Donostia / San Sebastian, , Spain

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Instituto Catalán de Oncología de Gerona Hospital

Girona, , Spain

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Hospital Universitario HM Sanchinarro - Centro Integral Oncologico Clara Campal (CIOCC)

Madrid, , Spain

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Hospital Clinico San Carlos

Madrid, , Spain

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Hospital Universitario de Fuenlabrada

Madrid, , Spain

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Hospital Clinico Universitario Virgen de la Victoria

Málaga, , Spain

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Hospital Universitario Central de Asturias

Oviedo, , Spain

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Hospital Son Espases, Palma de Mallorca

Palma, , Spain

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Complejo Hospitalario de Navarra

Pamplona, , Spain

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Complejo Hospitalario Universitario de Santiago

Santiago de Compostela, , Spain

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Universitario Virgen del Rocio

Seville, , Spain

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Hospital Quiron Sagrado Corazon

Seville, , Spain

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Hospital Virgen De La Salud

Toledo, , Spain

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Hospital General Universitario de Valencia - Servico Oncologia

Valencia, , Spain

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Hospital Clinico Universitario Lozano Blesa

Zaragoza, , Spain

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Inselspital Bern

Bern, Canton of Bern, Switzerland

Site Status

Spital STS AG Onkologiezentrum Thun-Berner Oberland

Thun, Canton of Bern, Switzerland

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Kantonspital Baden AG

Baden, , Switzerland

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Universitätsspital Basel

Basel, , Switzerland

Site Status

Istituto Oncologico della Svizzera Italiana (IOSI)

Bellinzona, , Switzerland

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Oncocare Bern

Bern, , Switzerland

Site Status

Brustzentrum Thurgau - Obstetrics and Gynecology

Frauenfeld, , Switzerland

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University Hospital Geneva

Geneva, , Switzerland

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University Hospital of Lausanne (CHUV) BH06 - Oncology Department

Lausanne, , Switzerland

Site Status

Brustzentum Kantonsspital St. Gallen

Sankt Gallen, , Switzerland

Site Status

CHCVs Hôpital de Sion - Service d'oncologie ambulatoire

Sion, , Switzerland

Site Status

Brust-Zentrum AG

Zurich, , Switzerland

Site Status

University Hospital Zurich

Zurich, , Switzerland

Site Status

Countries

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United States Australia Austria Belgium Canada Denmark France Greece Hungary Ireland Israel Italy Japan Lebanon Netherlands Norway Portugal Serbia Slovenia South Korea Spain Switzerland

References

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Brinton LA, Sherman ME, Carreon JD, Anderson WF. Recent trends in breast cancer among younger women in the United States. J Natl Cancer Inst. 2008 Nov 19;100(22):1643-8. doi: 10.1093/jnci/djn344. Epub 2008 Nov 11.

Reference Type BACKGROUND
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Leclere B, Molinie F, Tretarre B, Stracci F, Daubisse-Marliac L, Colonna M; GRELL Working Group. Trends in incidence of breast cancer among women under 40 in seven European countries: a GRELL cooperative study. Cancer Epidemiol. 2013 Oct;37(5):544-9. doi: 10.1016/j.canep.2013.05.001. Epub 2013 Jun 12.

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Bentzon N, During M, Rasmussen BB, Mouridsen H, Kroman N. Prognostic effect of estrogen receptor status across age in primary breast cancer. Int J Cancer. 2008 Mar 1;122(5):1089-94. doi: 10.1002/ijc.22892.

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Anders CK, Hsu DS, Broadwater G, Acharya CR, Foekens JA, Zhang Y, Wang Y, Marcom PK, Marks JR, Febbo PG, Nevins JR, Potti A, Blackwell KL. Young age at diagnosis correlates with worse prognosis and defines a subset of breast cancers with shared patterns of gene expression. J Clin Oncol. 2008 Jul 10;26(20):3324-30. doi: 10.1200/JCO.2007.14.2471.

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Demeestere I, Niman SM, Partridge AH, Diego DS, Kammler R, Ruggeri M, Colleoni M, Shimizu C, Saura C, Gelmon KA, Saetersdal AB, Kroep JR, Mailliez A, Amant F, Ruiz-Borrego M, Lee JE, Kataoka A, Walshe JM, Takei J, Borstnar S, Borges VF, Saunders C, Susnjar S, Bjelic-Radisic V, Cardoso F, Meisel JL, Kawwass JF, Spanic T, El-Abed S, Piccart M, Korde LA, Goldhirsch A, Gelber RD, Pagani O, Azim HA Jr, Peccatori FA; International Breast Cancer Study Group and the POSITIVE Trial Collaborators. Hormonal factors predictive of fertility in patients with breast cancer interrupting adjuvant endocrine therapy to attempt pregnancy in POSITIVE trial. Breast. 2025 Oct;83:104547. doi: 10.1016/j.breast.2025.104547. Epub 2025 Jul 26.

Reference Type DERIVED
PMID: 40743662 (View on PubMed)

Peccatori FA, Niman SM, Partridge AH, Ruggeri M, Colleoni M, Saura C, Shimizu C, Satersdal AB, Kroep JR, Gelmon K, Amant F, Mailliez A, Moore HCF, Ruiz-Borrego M, Walshe JM, Borges VF, Gombos A, Kataoka A, Rousset-Jablonski C, Borstnar S, Takei J, Lee JE, Saunders C, Bjelic-Radisic V, Susnjar S, Cardoso F, Klar NJ, Ferreiro T, El-Abed S, Piccart M, Korde LA, Goldhirsch A, Gelber RD, Pagani O, Azim HA Jr; International Breast Cancer Study Group and the POSITIVE Trial Collaborators. Breastfeeding After Hormone Receptor-Positive Breast Cancer: Results From the POSITIVE Trial. J Clin Oncol. 2025 Aug 20;43(24):2712-2719. doi: 10.1200/JCO-24-02697. Epub 2025 Jul 9.

Reference Type DERIVED
PMID: 40632989 (View on PubMed)

Partridge AH, Niman SM, Ruggeri M, Peccatori FA, Azim HA Jr, Colleoni M, Saura C, Shimizu C, Saetersdal AB, Kroep JR, Mailliez A, Warner E, Borges VF, Amant F, Gombos A, Kataoka A, Rousset-Jablonski C, Borstnar S, Takei J, Lee JE, Walshe JM, Ruiz-Borrego M, Moore HCF, Saunders C, Bjelic-Radisic V, Susnjar S, Cardoso F, Smith KL, Ferreiro T, Ribi K, Ruddy K, Kammler R, El-Abed S, Viale G, Piccart M, Korde LA, Goldhirsch A, Gelber RD, Pagani O; International Breast Cancer Study Group; POSITIVE Trial Collaborators. Interrupting Endocrine Therapy to Attempt Pregnancy after Breast Cancer. N Engl J Med. 2023 May 4;388(18):1645-1656. doi: 10.1056/NEJMoa2212856.

Reference Type DERIVED
PMID: 37133584 (View on PubMed)

Perachino M, Poggio F, Arecco L, Blondeaux E, Spinaci S, Marrocco C, Levaggi A, Lambertini M. Update on Pregnancy Following Breast Cancer Diagnosis and Treatment. Cancer J. 2022 May-Jun 01;28(3):176-182. doi: 10.1097/PPO.0000000000000599.

Reference Type DERIVED
PMID: 35594464 (View on PubMed)

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

Alliance A221405

Identifier Type: OTHER

Identifier Source: secondary_id

NCIC CTG MAC.18

Identifier Type: OTHER

Identifier Source: secondary_id

IBCSG 48-14 / BIG 8-13

Identifier Type: -

Identifier Source: org_study_id

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