Mifepristone 2.5 mg versus 5 mg daily in the treatment of leiomyoma before surgery
Josep L Carbonell Esteve1, Ana M Riverón2, Mariela Cano2, Alma I Ortiz3, Aleta Valle2, Carlos S Texidó2, Giuseppe Tomasi4
1Mediterránea Médica Clinic, Valencia, Spain; 2Eusebio Hernández Obstetrics Teaching Hospital, Havana, Cuba; 3Alemán Hospital, Managua, Nicaragua; 4Chemistry Department, University of the Basque Country, San Sebastian, Spain
Objectives: To evaluate the efficacy and safety of 2.5 mg and 5 mg mifepristone during 3 months for the treatment of uterine fibroids before surgery.
Design: Multicenter randomized clinical trial.
Locations: Eusebio Hernández Hospital, Havana, Cuba and the Alemán Hospital, Managua, Nicaragua.
Subjects: Included in the study were 146 women with symptomatic uterine fibroids.
Treatment: Group I: half a tablet of 5 mg (2.5 mg) mifepristone taken orally every 24 hours, and Group II: one tablet of 5 mg mifepristone taken orally every 24 hours over a period of 3 months in both groups. Two endometrial biopsies were performed.
Variables to evaluate efficacy: Increase in average hemoglobin, changes in fibroid and uterine volume, and symptomatic improvement.
Results: The average hemoglobin at the end of treatment was 0.6 g/dL greater in the 5 mg mifepristone group (P = 0.033). In both groups there were similar reductions in fibroid volumes. Clinical improvement was more significant in the 5 mg group.
Conclusion: The dose to be used should be 5 mg.
Keywords: mifepristone, leiomyoma, fibroid , antiprogestins
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