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CompletedNCT02667132Updated Feb 20, 2018

Granulomatous Mastitis Current Approach and Treatment

An observational study in Granulomatous, Mastitis, sponsored by Granulomatous Mastitis Working Group. Completed at 1 site in United States. Open to female participants aged 18 Years to 90 Years. Per ClinicalTrials.gov, last updated 2018-02-20.

Sponsored by Granulomatous Mastitis Working Group · Observational

Study type
Observational
Model
Case-control
Time perspective
Retrospective
Enrollment
400
Ages
18 Years to 90 Years
Sex
Female
01

Study summary

The aim of this study was to retrospectively review the granulomatous mastitis and evaluated current approach and treatment.

HYPOTHESIS Although there is no common protocol for the treatment and management process of GM, the ternary treatment (medical treatment following by surgical procedure, Steroid+Antibiotic and surgical procedure, respectively) is considered as the most successful treatment approach.

Read the detailed description

INTRODUCTION Granulomatous mastitis (GM) is a rare inflammatory disease of the breast which generally affects young parous women. It was emphasized that lactation and using oral contraceptive are considered among the predisposing factors of the disease. GM is firstly identified in 1972, and it is considered as an important disease because it is a great mimicker of breast carcinoma.

The form of treatments involves corticosteroids, antibiotics and general surgical resections including mastectomy. Furthermore, a preferred form of treatment has not been defined yet. Also, there are not enough data showing the results of using antibiotics. Since GM is a rare disease, there is no common consensus for the diagnosis and treatment of GM. The uncertainties about the distinct diagnosis, determining the form and term of treatment, the order of treatment if necessary, as well as what medical specialties need to involve in the treatment process still remain. Therefore, all these uncertainties cause a difficulty to manage the treatment process by physicians. Furthermore, since there is no enough study on GM and only limited case reports was presented in the literature, the success of treatment process is associated with the experience of treatment center. Therefore, there is a clear need for multicentric study that compares different approaches of the treatment process with the enough number of cases.

DATA COLLECTION In this study, patient's data will be retrospectively obtained by recording the data in patients' files and electronic records. The data includes the determined parameters by the study group of GM and the data will be recorded in an excel file that includes specific columns of the following entries: patients' age, diagnosis, secondary disease, diagnosis methods, treatments, recurrence, the risk factors that may cause the disease (smoking, using oral contraceptive, breast infection etc.). A shared excel file at the following website http://sanko.edu.tr/GranulamatozMastit has been created to record the data simultaneously. Each researcher can add the data at the file by using username and password. After data collection, the data will be presented mean+StDv. Statistical analysis will include Mann-Whitney U test, student's t test and chi-square test and statistical significance will set at P\< 0.05. The treatment group in this study will be divided as medical, surgical and medical+surgical and the comparison among these groups will be conducted to reach the aims determined in expected outcomes section. The sample size and power analysis were conducted and the results indicated that at least 100 samples in each group are required to achieve the statistical significance at P\< 0.05 with 90% power. The estimated total cases are expected over 400 cases.

EXPECTED OUTCOMES

  1. Potential etiologies will be investigated.
  2. The results will shed light on the optimal management method for patients with GM.
  3. The treatment duration and order will be revealed.
  4. Treatment and management algorithm will be created.
  5. The hypothesis on the success of ternary treatment approach will be tested.
  6. Creation of a prognostic index for GM will be tried.
  7. Since a multicentric study is planned, experiences and results from different centers will be investigated.
  8. Since the study will be multicentric with enough number of cases, the true statistical results will be obtained.
  9. Among which medical specialties should be involved in communication during the determination of diagnosis and treatment will be revealed.
02

Conditions studied

  • Granulomatous, Mastitis

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Keywords

  • Granulomatous, Mastitis
  • C17.800.090.968.400
  • C13.703.844.603.400
03

In context

Granulomatous Mastitis

22 studies on the registry are indexed under Granulomatous Mastitis; 7 are open to participants now.

This study's enrollment of 400 is above the median of 79 across 10 observational studies indexed under Granulomatous Mastitis.

Browse Granulomatous Mastitis studies →

Lead sponsor

This is the only study on the registry with Granulomatous Mastitis Working Group as lead sponsor.

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

04

Who can participate

Ages eligible
18 Years to 90 Years
Sexes eligible
Female
Accepts healthy volunteers
No
Sampling method
Probability sample

Study population

from 18 to 90 years womens with Granulomatous Mastitis

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

  • All Granulomatous Mastitis

Exclusion criteria

Exclusion Criteria:

  • Breast Carcinoma
05

Study design

Observational model
Case-control
Time perspective
Retrospective
Enrollment
400 participants (actual)
Patient registry
No

Groups and cohorts

  • medical treatment

    In this study, patient's data will be retrospectively obtained by recording the data in patients' files and electronic records. The data includes the determined parameters by the study group of GM and the data will be recorded in an excel file that includes specific columns of the following entries: patients' age, diagnosis, secondary disease, diagnosis methods, treatments, recurrence, the risk factors that may cause the disease (smoking, using oral contraceptive, breast infection etc.). antibiotic, immunosuppressive drugs, methotrexate

  • surgical treatment

    lumpectomy, mastectomy, abscess drainage

  • surgical+medical treatment

    first medical, after surgical treatment or first surgical, after medical treatment

06

What researchers measure

Primary outcomes

  1. Granulomatous Mastitis Working Group

    The data includes the determined parameters by the study group of GM and the data will be recorded in an excel file that includes specific columns of the following entries: patients' age, diagnosis, secondary disease, diagnosis methods, treatments, recurrence, the risk factors that may cause the disease. A shared excel file at the following website http://sanko.edu.tr/GranulamatozMastit has been created to record the data simultaneously. Each researcher can add the data at the file by using username and password. After data collection, statistical analysis will include Mann-Whitney U test, student's t test and chi-square test and statistical significance will set at P\< 0.05.The sample size and power analysis were conducted and the results indicated that at least 100 samples in each group are required to achieve the statistical significance at P\< 0.05 with 90% power. The estimated total cases are expected over 400 cases.

    Time frame: dec 2015 start data collection, February 2016 The primary outcome statement - April 2016 end up study

07

Study locations

1 site
  • Atilla Soran
    Pittsburgh, Pennsylvania 15261, United States
08

References and documents

Publications

  • Lee JH, Oh KK, Kim EK, Kwack KS, Jung WH, Lee HK. Radiologic and clinical features of idiopathic granulomatous lobular mastitis mimicking advanced breast cancer. Yonsei Med J. 2006 Feb 28;47(1):78-84. doi: 10.3349/ymj.2006.47.1.78. PubMed 16502488 ↗
  • Kok KY, Telisinghe PU. Granulomatous mastitis: presentation, treatment and outcome in 43 patients. Surgeon. 2010 Aug;8(4):197-201. doi: 10.1016/j.surge.2010.02.002. Epub 2010 Mar 6. PubMed 20569938 ↗

Individual participant data

Plan to share: Yes — DATA COLLECTION A shared excel file at the following website http://sanko.edu.tr/GranulamatozMastit has been created to record the data simultaneously. Each researcher can add the data at the file by using username and password. After data collection, the data will be presented mean+StDv. Statistical analysis will include Mann-Whitney U test, student's t test and chi-square test and statistical significance will set at P\< 0.05. The treatment group in this study will be divided as medical, surgical and medical+surgical and the comparison among these groups will be conducted to reach the aims determined in expected outcomes section. The sample size and power analysis were conducted and the results indicated that at least 100 samples in each group are required to achieve the statistical significance at P\< 0.05 with 90% power. The estimated total cases are expected over 400 cases.

09

Timeline

Tracking since Sep 25, 2026
Not marked actual or estimatedDates not marked actual or estimated

The record gives a start of Dec 2015, a primary completion of Jan 2018 and a completion of Jan 2018. It does not say whether these dates are actual or estimated.

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

Registered
Jan 11, 2016
First posted
Jan 28, 2016
Start
Dec 2015
Primary completionActual
Jan 3, 2018
CompletionActual
Jan 4, 2018
Last update
Feb 20, 2018
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 Feb 20, 2018, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02667132
Lead sponsor
Granulomatous Mastitis Working Group
Responsible party
Sponsor
First posted
Jan 28, 2016
Start date
Dec 2015
Primary completion
Jan 3, 2018
Completion
Jan 4, 2018
Last update
Feb 20, 2018

Study contacts

Atilla Soran, Professor
study director · Granulomatous Mastitis Working Group

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Feb 2018. You cannot join it, but the record below documents what was studied.

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