ClinicalTrials.gg
CompletedNCT02733601BreCaReAlUpdated Apr 3, 2023

Epidemiology of Breast Cancer in Women Based on Diagnosis Data From Oncologists and Breast Surgeons in Algeria

An observational study in Oncology, Epidemiology and Breast Cancer, sponsored by AstraZeneca. Completed at 3 sites in Algeria. Open to female participants. Per ClinicalTrials.gov, last updated 2023-04-03.

Primary conditionBreast NeoplasmsRegistry: NeoplasmsReclassifiedWhy we changed it
Registry
Neoplasms — the first condition term the registry derived for this study.
ClinicalTrials.gg
Breast Neoplasms
Why
  1. The study's listed conditions name Breast Neoplasms, a narrower term within Neoplasms.
Confidence
High: the new condition is named in the study's own listed conditions. Of 351 hand-checked studies reclassified this way, 68% were exactly right and 84% in the right disease family; the registry's first term was right for 5% (measured 2026-10-21). How we classify →
Wrong?
Tell us the study's main condition →

Sponsored by AstraZeneca · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
1,500
Sex
Female
01

Study summary

National, prospective, multicentre, non-interventional epidemiological study, conducted among oncologists and breast surgeons in community and university hospitals, from the public sector in Algeria.

The study will collect information on the characteristics, and breast carcinomas patterns of patients whose breast cancer diagnosis was confirmed by an anatomopathologist. The study will be conducted over a representative, but not exhaustive sample of Algerian female patients.

Read the detailed description

The study consists of:

  • Four in-hospital visits (inclusion visit, visit at 3 months, visit at 6 months, visit at 12 months). All patients presenting to their oncologists/breast surgeons during a routine visit and meeting eligibility criteria will be sequentially asked to participate to the study
  • In addition to the 4 visits, a phone contact with the patients will be done by the investigator or the CRO (Clinical Research Organization, independent person) or during a routine visit to the investigator, to check the patients' survival every 6 months during 5 years (8 contacts).

Duration of patient recruitment: 6 months from the date of first patient's inclusion.

Duration of patient follow-up: 60 months 3.2 Data Source A comprehensive list of all Algeria hospitals will be used as a data source in the site selection process. The list will be obtained either from the health authority, local scientific societies or professional associations, depending on the local availability of this type of information. All efforts will be made to approach and select sites/physicians.

The oncologist/breast surgeons (investigator) or one of his/her authorised representative in each participating site will complete a CRF (Case Report Form). All data to be collected will be based on the patient's medical file.

The patient will also complete an auto-questionnaire about quality of life at inclusion, 6 and 12 months follow-up.

The CRF will collect all data required for the study and will be transmitted to the project team for analysis following each eligible patient's visit to the investigator.

Data collection should be precise and reliable. The study monitor will verify the authenticity of the data, by matching the CRF with the source documents at the site, and in compliance with the guidelines for good pharmacoepidemiology practices and the recommendations of the Association of French-speaking Epidemiologists (ADELF).

In total, 10 to 15% of the eCRFs (electronic Case Report Form) by site will be verified.

Following the data verification, lists of non-conformity will be generated and transmitted to the study investigators.

The investigator should provide the Sponsor, when requested, all necessary and important data for control. The access to the complete patient's medical file, should be authorised by the investigator, providing that the patient's confidentiality is preserved.

Patients who do not give their written informed consent will only be listed, their data will not be collected on the patient form by the Sponsor.

In case of any particular problem, an audit request can be made.

This study will include representative centres of breast cancer managing departments in each sanitary region defined by the Ministry of health, the investigational centres will propose to all patients whom met eligibility criteria to participate to the study. 1500 patients are expected to be enrolled in the study (incidence study).

Study duration: 66 months

02

Conditions studied

  • Oncology
  • Epidemiology
  • Breast Cancer

Browse trials for

Keywords

  • breast cancer epidemiology algeria registry
03

In context

Breast Neoplasms Reclassified

14,825 studies on the registry are indexed under Breast Neoplasms; 3,319 are open to participants now.

This study's enrollment of 1,500 is above the median of 184 across 3,235 observational studies indexed under Breast Neoplasms.

Browse Breast Neoplasms studies →

Lead sponsor

AstraZeneca is the lead sponsor of 3,499 studies on the registry; 270 are open to participants now.

Of its 368 completed or terminated interventional studies of FDA-regulated products, 178 (48%) have results posted.

Compared within Breast Neoplasms, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Neoplasms. The counts are of registry records indexed under each term, refreshed daily. How we classify →

04

Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
Female
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

This study will include representative centres of breast cancer managing departments in each sanitary region defined by the Ministry of health, the investigational centres will propose to all patients whom met eligibility criteria to participate to the study. 1500 patients are expected to be enrolled in the study (incidence study).

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

Patients will be eligible to participate to the study if they fulfil all of the following criteria:

  • Female patients
  • Aged 18 years and over
  • Newly diagnosed with breast cancer all stages confirmed during the study period by an anatomopathologist, defined as a first diagnosis of breast cancer based on anatomopathological results from at least a microbiopsy
  • Provision of subject .

Exclusion criteria

Exclusion Criteria:

Patients will not be eligible to participate if any of the following criteria are present:

  • not obtained.
  • Patients with a mental or psychological disorder according to their treating clinicians
  • Patients participating in an interventional study or already included in the study. A patient could be consulted and treated in two different centres, thus a codification system will be generated to avoid duplicate participation
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
1,500 participants (actual)
Target follow-up
5 Years
Patient registry
Yes

Groups and cohorts

  • Breast Cancer Patients

    Newly diagnosed with breast cancer all stages confirmed during the study period by an anatomopathologist, defined as a first diagnosis of breast cancer based on anatomopathological results from at least a microbiopsy

    Other: NIS (Non Interventional Study) observational study

Interventions

  • OtherNIS (Non Interventional Study) observational study

    NIS observational study : Epidemiologic registry

06

What researchers measure

Primary outcomes

  1. Survival status at 05 years (percentage of patients still alive at 05 years)

    Survival status at 60 months based on the percentage of patients still alive at 05 years

    Time frame: 60 months

Secondary outcomes

  1. incidence all cases

    Number of new diagnosed cases of breast cancer, all stages combined, by oncologists and breast surgeons, in pre- and post-menopausal women, related to the general female population in Algeria over 06 months of recruitment period.

    Time frame: 06 months

  2. Incidence by age

    Number of new cases diagnosed with breast cancer by age (18 - 20, 20-30, 30 - 40, 40 - 50, 50-60, 60 - 70 and \> 70 years old).

    Time frame: 60 months

  3. Incidence by stage

    Number of new diagnosed patients by stage (TNM classification sub population).

    Time frame: 60 months

07

Study locations

3 sites
  • Research Site
    East Of Algeria, 25 000, Algeria
  • Research Site
    Middle Of Algeria, 16 000, Algeria
  • Research Site
    Ouest Of Algeria/ Oran Region, 31 000, Algeria
08

References and documents

Related links

Individual participant data

Plan to share: Yes — Qualified researchers can request access to anonymized individual patient-level data from AstraZeneca group of companies sponsored clinical trials via the request portal. All request will be evaluated as per the AZ disclosure commitment: https://astrazenecagrouptrials.pharmacm.com/ST/Submission/Disclosure. Yes, indicates that AZ are accepting requests for IPD, but this does not mean all requests will be shared.

Time frame: AstraZeneca will meet or exceed data availability as per the commitments made to the EFPIA Pharma Data Sharing Principles. For details of our timelines, please rerefer to our disclosure commitment at https://astrazenecagrouptrials.pharmacm.com/ST/Submission/Disclosure

Access criteria: When a request has been approved AstraZeneca will provide access to the deidentified individual patient-level data in an approved sponsored tool . Signed Data Sharing Agreement (non-negotiable contract for data accessors) must be in place before accessing requested information. Additionally, all users will need to accept the terms and conditions of the SAS MSE to gain access. For additional details, please review the Disclosure Statements at https://astrazenecagrouptrials.pharmacm.com/ST/Submission/Disclosure.

Data sharing details ↗ · astrazenecagroup-dt.pharmacm.com

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from May 2016 to primary completion in Mar 2022, 70 months.

Of 189 industry-sponsored observational studies under Breast Neoplasms, half reached primary completion within 43 months of starting (the median), counting those still running; a quarter within 26 and three quarters within 70. This study's 70 months is above that.

Counting every sponsor, half of 1,380 studies reached it within 55 months; a quarter within 25 and three quarters within 126.

How these figures are worked out, and which studies are left out of them.

Registered
Mar 11, 2016
First posted
Apr 11, 2016
StartActual
May 29, 2016
Primary completionActual
Mar 31, 2022
CompletionActual
Mar 31, 2022
Last update
Apr 3, 2023
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Apr 3, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02733601
Lead sponsor
AstraZeneca
Responsible party
Sponsor
First posted
Apr 11, 2016
Start date
May 29, 2016
Primary completion
Mar 31, 2022
Completion
Mar 31, 2022
Last update
Apr 3, 2023

Study contacts

Ahmed Bendib, Oncologist
principal investigator · CPMC

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Mar 2023. You cannot join it, but the record below documents what was studied.

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