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Efficacy and Safety of Estracyt® in Metastatic Breast Cancer

Efficacy and Safety of Estracyt® in Metastatic Breast Cancer Hormonal Estrogen Receptor (HER 2) Negative, Hormone Receptor (HR) Positive.

Status
Withdrawn
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02853071
Acronym
BEST
Enrollment
0
Registered
2016-08-02
Start date
2017-01-31
Completion date
2020-01-31
Last updated
2019-11-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Breast Cancer

Brief summary

This study evaluates efficacy, safety and quality of life in patients affected by metastatic breast cancer RH+/ HER2- and treated by estramustine phosphate.

Detailed description

For patients affected by metastatic breast cancer RH+/HER2-, the conventional treatment is hormonotherapy. But, when patients don't react no recommendations exist. Estramustine phosphate is currently prescribed for prostate cancer. The estramustine phosphate is an active anti-tumoral agent by oral route, associating a nitrogenous mustard with the estradiol, it settles on membrane receptor and the cytotoxic component acts essentially by dismantling microtubules inhibiting the mitosis. Estramustine could be a therapeutic option when currently therapy are exhausted for patients reactive to hormonotherapy previous lines or chemotherapy.

Interventions

standard practice

Sponsors

Centre Hospitalier Universitaire de Besancon
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Metastatic breast cancer HER2-/RH+ * Progression after hormonotherapy * Treated by taxanes, anthracyclines, capecitabine and eribulin * Treated by everolimus * ECOG ≤ 2 * Hematological Function: neutrophiles ≥ 1,5 x 109 / L, hemoglobin ≥ 9 g / dL, plaques ≥ 100 x 109 / L * Hepatic function: albumin ≥ 2,5 g / dl, bilirubin serum ≤ 2 x N (superior border of the standard) (unless disease of Gilbert), transaminases ≥ 3 x N * Renal Function: serum creatinine ≤ 1,5 mg / dL or clearance of the creatinine ≥ 40 mL / min * Estimated Life expectancy ≥ 3 months

Exclusion criteria

* Hypersensitivity known about one of the constituents of the estramustine phosphates * Preliminary Treatment by estramustine phosphates * Brain Metastases * Patients not being under effective contraception * Minor, pregnant or lactating Patients * Patients not previously treated by everolimus * Transaminases \> 3xN * Other concomitant anticancer treatment less than 1 month before the inclusion * Digestive function: malabsorption * History of other cancer in the previous 5 years (other than squamous-cell epithelioma or totally resected in situ carcinoma) * Active Thrombo-phlebitis * Risk thromboembolic known, * Unchecked cardiovascular Pathology * Grave hepatic Affection

Design outcomes

Primary

MeasureTime frame
Proportion of the alive patients without progress of the disease3 months

Secondary

MeasureTime frameDescription
quality of life18 monthsEuropean Organization for Research and Treatment of Cancer Quality of Life Questionnaire Core 30 items (EORTC QLQ-C30)
progression-free survival18 months
overall survival18 months

Countries

France

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026