Evaluating the effect of G-CSF on white blood cell recovery during breast cancer chemotherapy

Evaluation and Modeling of the Effect of G-CSF on the Evolution of Polynuclear Neutrophils During Dense Dose Epirubicin-Cyclophosphamide Regeneration

NA · Centre Georges Francois Leclerc · NCT05296317

This study is testing whether a new timing for a white blood cell booster can help women with breast cancer recover their white blood cell counts better during chemotherapy.

Quick facts

PhaseNA
Study typeInterventional
Enrollment100 (estimated)
Ages18 Years and up
SexFemale
SponsorCentre Georges Francois Leclerc (other)
Drugs / interventionsCyclophosphamide, chemotherapy
Locations1 site (Dijon, Bourgogne)
Trial IDNCT05296317 on ClinicalTrials.gov

What this trial studies

This study investigates the impact of granulocyte colony-stimulating factor (G-CSF) on the recovery of white blood cells in women undergoing dense dose chemotherapy with epirubicin and cyclophosphamide for localized breast cancer. Patients will be randomized to receive either peg-G-CSF or standard G-CSF at different times during their treatment. The goal is to determine which regimen better supports white blood cell levels and reduces the risk of neutropenia. The study will model the pharmacodynamic effects of G-CSF in relation to chemotherapy administration.

Who should consider this trial

Good fit: Ideal candidates are women over 18 with non-metastatic breast cancer requiring dense dose epirubicin-cyclophosphamide treatment.

Not a fit: Patients with contraindications to anthracyclines or G-CSF, as well as those already undergoing similar treatments, may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could improve the management of white blood cell counts in breast cancer patients undergoing chemotherapy, potentially reducing complications and improving treatment outcomes.

How similar studies have performed: Other studies have shown positive outcomes with G-CSF in supporting white blood cell recovery during chemotherapy, indicating this approach is supported by prior evidence.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Women
* Patient over 18 years old
* Patient with histologically documented, non-metastatic breast cancer who must receive dense dose Epirubicin-Cyclophosphamide (EC) type treatment as part of neoadjuvant or adjuvant treatment
* Patient to receive granulocyte growth factors (G-CSF or peg-G-CSF) as a preventive measure from the first cycle
* Neutrophils \> 1,500 /mm3; platelets \> 100,000 /mm3
* Written informed consent, dated and signed
* For patients of childbearing age, effective means of contraception during treatment and up to 3 months after stopping treatment

Exclusion Criteria:

* Patient with a contraindication to treatment with anthracyclines
* Patient already undergoing treatment with EC dense dose
* Patient with a contraindication to treatment with G-CSF such as hypersensitivity to the active ingredient or to one of the excipients
* Pregnant or breastfeeding women
* Patient under guardianship or curatorship or subject to a protection regime for adults
* Patient not affiliated to a social security scheme (beneficiary or beneficiary)

Where this trial is running

Dijon, Bourgogne

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Localized Breast Cancer, breast cancer, G-CSF, Epirubicin-cyclophosphamide dose-dense

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.