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CompletedNCT04012229IMBASSAUpdated Jul 9, 2019

IMpact of Breast cAncer Gene Status on Survival in Adjuvant Breast Cancer (IMBASSA)

An observational study in Breast Cancer, BRCA1 Mutation and BRCA2 Mutation, sponsored by Centre Hospitalier Universitaire de Besancon. Completed at 1 site in France. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2019-07-09.

Sponsored by Centre Hospitalier Universitaire de Besancon · Observational

Study type
Observational
Model
Cohort
Time perspective
Retrospective
Enrollment
2,295
Ages
18 Years and older
Sex
All
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Study summary

Relationship between the presence of the BRCA mutation (BReast Cancer) and outcomes is unclear in high-risk early breast cancers (BC).

This study is a multi-center retrospective cohort of patients treated in region Franche-Comté for an early BC by neoadjuvant and/or adjuvant chemotherapy.

The primary aim was to describe clinical and pathological characteristics considering BRCA mutated (BRCAm) patients versus BRCA wild type (BRCAwt) patients or untested patients. The second objective was to assess the prognostic impact of germinal BRCAm in this high-risk population.

02

Conditions studied

  • Breast Cancer
  • BRCA1 Mutation
  • BRCA2 Mutation

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Keywords

  • Breast cancer
  • BRCA1
  • BRCA2
  • Chemotherapy
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In context

Breast Neoplasms

12,544 studies on the registry are indexed under Breast Neoplasms; 2,892 are open to participants now.

This study's enrollment of 2,295 is above the median of 184 across 2,642 observational studies indexed under Breast Neoplasms.

Browse Breast Neoplasms studies →

Lead sponsor

Centre Hospitalier Universitaire de Besancon is the lead sponsor of 439 studies on the registry; 97 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

Patients treated in region Franche-Comté, France, for an early breast cancer, by neoadjuvant and/or adjuvant chemoterapy.

Eight center were included : University hospital of Besançon, Polyclinique de Franche-Comté (Besançon), Clinique Saint-Vincent (Besançon), Hospitals of Vesoul, Lons-le-Saunier, Pontarlier, Dole and Montbéliard.

Inclusion criteria

  • Patients older than 18 years old,
  • Histologically confirmed invasive early breast cancer
  • Neo-adjuvant and/or adjuvant chemotherapy with the first cure of chemotherapy received between January 1st, 2003 and December 31th, 2013

Exclusion criteria

Exclusion Criteria:

  • Clinical, radiological or histological confirmed metastatic disease
  • Non-invasive breast cancer,
  • Patients who received incomplete treatment
  • Patients who did not speak French
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Study design

Observational model
Cohort
Time perspective
Retrospective
Enrollment
2,295 participants (actual)
Patient registry
No

Groups and cohorts

  • Patients treated by chemotherapy for an early breast cancer

    Patients (Women or Men) older than 18 years old, histologically confirmed invasive early breast cancer, treated by neo-adjuvant and/or adjuvant chemotherapy with the first cure of chemotherapy received between January 1st, 2003 and December 31th, 2013 were included.

    Genetic: BRCA mutation

Interventions

  • GeneticBRCA mutation

    The genetic testing was performed according interregional consensus (Manchester score \> or = 16) on blood sample using classical chain-termination (Sanger sequencing) and multiplex ligation-dependant probe amplification to search large rearrangements.

06

What researchers measure

Primary outcomes

  1. Age of diagnosis

    The date from the date of birth to the date of pathological diagnosis (Years)

    Time frame: one day

  2. Pathological tumor size

    Pathological tumoral size after partial or complete surgery Pathological size in millimeters after complete surgery

    Time frame: one day

  3. Pathological nodal involvement

    Presence of metastasis on complete lymphadenectomy

    Time frame: one day

  4. Clinical tumor size

    Clinical measurement of the tumor in millimeters after surgery

    Time frame: one day

  5. Clinical nodal involvement

    Presence of axillary lymph nodes before surgery (no versus yes)

    Time frame: one day

  6. Estrogen receptor expression status

    Expression of estrogen receptors on tumor after surgery (% expression in immuno-histo-chemistry, ranging from 0 to 100%.

    Time frame: one day

  7. Progesterone receptor expression status

    Expression of progesterone receptor on tumor after surgery (% expression in immuno-histo-chemistry, ranging from 0 to 100%.

    Time frame: one day

  8. HER2 status

    Expression of HER2 on tumor after surgery (expression assessed by immuno-histo-chemistry, if HER2 is ++, fluorescence in situ hybridization. HER2 status is ranged to not overexpressed (0 and +), equivocal (++) and overexpressed (+++).

    Time frame: one day

  9. Sexe

    Male or Female

    Time frame: one day

  10. Scarff Bloom and Richardson grade (SBR)

    This grade is the addition of score of tubule formation (\>75% 1 point 10%-75% 2 point \<10% 3 points), nuclear pleomorphism (small, regular uniform cells 1 point moderate increase in size and variability 2 points, marked Variation 3 points) and mitotic counts (dependent on microscope field area 1-3 points) assessed by pathology analysis on tumor after surgery. The SBR grade is ranging from I (total of 3 to 5), II (6 and 7) and III (8 and 9).

    Time frame: one day

  11. In situ component

    Presence or absence of in situ carcinoma assessed by pathology analysis on tumor after surgery

    Time frame: one day

  12. Pathological histotype

    Histologic subtype of breast tumor : ductal, lobular or other, assessed by pathology analysis on tumor after complete surgery

    Time frame: one day

  13. Metastatic sites (if available)

    Metastatic sites of primary breast cancer : Nodal (other than axillary), lung, liver, bone, cerebral and other sites.

    Time frame: one day

  14. Medical treatment

    Type of chemotherapy (adjuvant, neoadjuvant, metastatic)

    Time frame: one day

Secondary outcomes

  1. Overall Survival

    The time from the date of first treatment or of first consultation, whichever comes first, to the date of death from any cause.

    Time frame: one day

  2. Invasive Disease Free Survival

    The time from the date of the first treatment or th first consultation to the date of local or ipsilateral or controlateral invasive breast cancer, or other invasive cancer or distant recurrence or death from breast cancer or any cause

    Time frame: one day

  3. Distant Disease Free Survival

    The time from the date of the first treatment or the first consultation to the date of distant recurrence or death from breast cancer or any cause

    Time frame: one day

07

Study locations

1 site
  • University Hospital Jean Minjoz
    Besançon, Franche-Comté 25030, France
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 9, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT04012229
Lead sponsor
Centre Hospitalier Universitaire de Besancon
Responsible party
Sponsor
First posted
Jul 9, 2019
Start date
Jul 28, 2017
Primary completion
Jun 21, 2018
Completion
Jun 21, 2018
Last update
Jul 9, 2019

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Apr 2019. You cannot join it, but the record below documents what was studied.

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