Intrauterine Progestin Therapy as a New Approach to Premalignant Endometrial Polyps: A Prospective Observational Study.

Anticancer Res

Research Group for Gynecologic Oncology, Department of Medical Biology (IMB), Faculty of Health Sciences, University of Tromsø, Tromsø, Norway

Published: September 2019

Background/aim: Endometrial hyperplastic polyps (EHP) may progress to endometrial carcinoma (EC) if left untreated. We aimed to prospectively investigate the efficacy of the low-dose levonorgestrel intrauterine system (LNG-IUS) as therapy for EHP with malignant potential.

Patients And Methods: In total, 37 women with EHP underwent therapy with LNG-IUS containing 13.5 mg levonorgestrel for six months or 4-10 weeks depending on whether the EHP was characterized (by D-score analysis) as low- to medium-risk (n=33) or high-risk (n=4) of coexistent or future EC. Therapy response was defined as complete clearance of hyperplastic glands in post-therapy endometrial biopsy.

Results: All women with low- to medium-risk EHP obtained therapy response, whereas only 1 out of 4 with high-risk EHP responded to therapy. None of the women were diagnosed with EC during the study and no serious adverse events occurred.

Conclusion: Low-dose LNG-IUS represents a promising therapy for selected women with EHP.

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http://dx.doi.org/10.21873/anticanres.13676DOI Listing

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