Maintained reduction of uterine leiomyoma following addition of hormonal replacement therapy to a monthly luteinizing hormone-releasing hormone agonist implant: a pilot study.

Ten pre-menopausal women with uterine leiomyoma were treated for 1 year with a monthly depot of luteinizing hormone-releasing hormone agonist (LHRA-a), goserelin, combined after the initial 3 months of treatment with conjugated oestrogens 0.3 mg (days 1-25) and medroxy-progesterone acetate 5 mg (days 16-25). Mean leiomyoma volume decreased by 49.3% during the first 3 months when goserelin alone was administered but did not change significantly during the 9 months of combination therapy. There were no significant changes in bone mass or high-density lipoprotein cholesterol during the study whereas hot flushes and menstrual blood loss were well controlled. These results indicate that ovarian suppression with a monthly depot of the LHRH-a, goserelin, combined after 3 months with low-dose hormonal replacement therapy reduced the size and the symptomatology of leiomyoma while preserving the bone mass.