Idiopathic Granulomatous Mastitis Combination Therapy (IGM-COMBO)

  • STATUS
    Recruiting
  • End date
    Sep 14, 2023
  • participants needed
    150
  • sponsor
    Baskent University
Updated on 14 May 2022

Summary

After breast cancer, diopathic Granulomatous Mastitis (IGM) is among the breast diseases that bother patients and clinicians the most. Countries with a coast to the Mediterranean, especially our country, are the most common geography of this disease. For this reason, a significant part of the important scientific publications about IGM in the last 3-4 decades are from the countries of this geography and mainly from our country. The paradigm of whether IGM should be treated medically or surgically is still a matter of debate. Today, effective treatment results can be achieved with medical treatments, and local drug applications are finding an increasing application area in order to reduce the systemic drug level due to the side effects often seen in this process. As in the centers dealing with breast diseases intensively in our country, patients are treated in our center both by systemic and local means.

Within the body of the Turkish Breast Diseases Federation, after the plans made with the employees of the leading breast centers of the International Breast Health Working Group International planned to start a recording study to observe the activity between, local treatment in the lesion without surgical treatment with systemic treatment in IGM treatment and local treatment together with surgical treatment.

Description

AIM

Primary: The effect of the combination of excision and single dose intraoperative steroid administration to the cavity on the shortening of the recovery period in Idiopathic Granulomatous Mastitis.

Secondary: Comparison of the side effects and the relationship between the treatment method and the serum cortisol level in patients treated with intralesional steroid + low dose oral steroid and topical steroid

THE WORK PLAN:

A prospective registry study was designed to compare the effectiveness of the combination of intralesional steroid administration used in the treatment of IGM + low-dose oral steroid therapy used together with the combination of surgical excision and intraoperative intra-cavity steroid administration.

For this purpose, it was planned to observe treatment success rates, time to treatment, recurrence rates at the earliest 1 year follow-up, and side effects related to surgical oral steroid use in eligible IGM patients treated in two different treatment groups.

METHOD

After clinical and radiological evaluation, histopathological examination will be performed from core biopsy samples taken under ultrasound guidance and tuberculosis (TB) PCR and microbiological culture evaluation will be performed in all patients to rule out specific granulomatous inflammation. Patients with granulmatous inflammation characterized by histopathologically noncaseating granulomas, TB PCR negative and without culture growth, who meet the inclusion criteria, will be recruited into one of the two main treatment arms, at the discretion of the treating centre. There will be no randomization in determining the method of treatment. The type of treatment will be chosen according to the facilities of the performing center, especially the availability of intermittent access to the hospital for non-surgical treatment, and the priority to be determined between the patient and the physician. Since the efficiency superiority between the two methods is not known, any one will not be prioritized and the choice of treatment method will be determined by the patient and the physician. Among these patients, in those with localized abscess type IGM, the abscess foci that are present at the stage of sampling for TB PCR, microbiology culture and histopathology evaluation will be completely aspirated before the treatment is started, and will be waited until the sample results are obtained.

Treatment arms:

Group 1 (NON-SURGERY GROUP): Intralesional steroid + Low dose oral steroid (<30 mg/day prednol) Group 2 (SURGERY GROUP): Excision + Intraoperative steroid injection

Group 1: Patients whose serum cortisol level was observed before starting the treatment, who were injected with 40 mg of prednol at 4 weeks intervals for 3 months for each lesion. The total monthly dose will not exceed 120 mg, and the total 3-month dose will not exceed 200 mg. In this group of patients, the serum cortisol level should have reappeared on the 2nd or 3rd day following each intralesional administration. In this group of patients, low-dose oral prednol (<30 mg/day) and/or topical prednol cream can be applied twice a day during the treatment.

In patients included in Group 2, serum cortisol levels should have been observed before starting treatment. Then the patients should be operated and the mass(s) should be excised. Intraoperatively, not less than 40 mg of prednol should be injected into each mass cavity (it may vary according to the cavity diameter), and the amount applied to all cavities should not exceed 200 mg in total. The amount of prednol administered for each cavity should be recorded. In this group of patients, prednol may have been administered to the cavity walls (Group 2a) or inside the cavity (Group 2b). Serum cortisol levels should be seen in patients 7 to 10 days after the procedure.

Group 2a: 4 Quadrants 40 mg predmol per cavity wall (for < 2 cm lesion and an additional 20 mg for each additional 1 cm) Group 2b: 40 mg predmol into the cavity (for < 2 cm lesion and an additional 20 mg for each additional 1 cm)

Monitoring parameters:

  • Recovery rates
  • Time to recovery
  • Recurrence rates after one-year follow-up
  • Complications / side effects due to surgery or oral steroid use
  • Relationship between steroid administration method and serum cortisol level Recovery (remission) was defined as the complete disappearance of pre-treatment clinical and ultrasonographic mastitis findings for patients in Group 1, and completion of wound healing for patients in Group 2.

Relapse was defined as the clinical or ultrasonographic re-detection of the disease in the same breast in both groups, following remission, in a similar or different type to the pre-treatment. Any need for repetitive surgery in the surgical arm will also be considered a recurrence.

In case of relapse in patients in both groups, the continuation of treatment will be left to the choice of centers.

Details
Condition Idiopathic Granulomatous Mastitis
Treatment Intralesional steroid administration, Intraoperative cavity steroid administration
Clinical Study IdentifierNCT05361629
SponsorBaskent University
Last Modified on14 May 2022

Eligibility

Yes No Not Sure

Inclusion Criteria

Patients diagnosed with IGM histopathologically
Patients in groups A, B and C according to clinical classification
Ultrasonographically; Patients with leaf-like hypoechoic type, localized abscess type, and localized hypoechoic mass type mastitis

Exclusion Criteria

Patients diagnosed with tumor after biopsy
Those with TB PCR (+)
Presence of clinically widespread abscess and cellulite (group D patients)
Ultrasonographically; diffuse diffuse type
Pregnancy
Breastfeeding period
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