Levonorgestrel-Releasing Intrauterine Device Versus Dydrogesterone for Management of Endometrial Hyperplasia Without Atypia

In: Reproductive Sciences · 2014 · vol. 22(3) , pp. 329–334 · doi:10.1177/1933719114542014 · PMID:25001020 · W2093126475
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AI-generated summary by claude@2026-06+body, 2026-06-08

The levonorgestrel-releasing intrauterine device achieved higher endometrial hyperplasia regression and lower hysterectomy rates than oral dydrogesterone over 6 months.

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This randomized study enrolled 138 women aged 30–50 years with abnormal uterine bleeding and transvaginal-ultrasound–diagnosed endometrial hyperplasia without atypia, comparing a levonorgestrel-releasing intrauterine system (LNG-IUS) versus oral dydrogesterone given for 6 months. The primary outcome was regression of hyperplasia at 6 months, with secondary outcomes including side effects during treatment and recurrence during follow-up. After 6 months, 96% in the LNG-IUS group achieved regression versus 80% with dydrogesterone (P < .001), with similar overall adverse effects but more intermenstrual spotting and amenorrhea in the LNG-IUS group and higher patient satisfaction; hysterectomy rates were lower with LNG-IUS and recurrence was 0% versus 12.5%. This paper relates to endometriosis by evaluating a progestin-delivering LNG-IUS approach used in other pelvic pain contexts, though the study itself focuses on endometrial hyperplasia without atypia rather than endometriosis.

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Abstract

Objective To compare the efficacy and safety of the levonorgestrel-releasing intrauterine device (LNG-IUD) with dydrogesterone applied for the same duration in patients having endometrial hyperplasia (EH) without atypia.

Materials and methods

One hundred thirty eight women aged between 30 and 50 years with abnormal uterine bleeding and diagnosed as EH by transvaginal ultrasound were randomized to receive either LNG-IUD or dydrogesterone for 6 months. Primary outcome measures were regression of hyperplasia after 6 months of therapy. Secondary outcome measures were occurrence of side effects during treatment or recurrence of hyperplasia during follow-up period.

Results

After 6 months of treatment, regression of EH occurs in 96% of women in the levonorgestrel-releasing intrauterine system (LNG-IUS) group versus 80% of women in the oral group (P < .001). Adverse effects were relatively common with minimal differences between the 2 groups. Intermenstrual vaginal spotting and amenorrhea were more common in the LNG-IUD group (P value .01 and .0001). Patient satisfaction was significantly higher in the LNG-IUS group (P value .0001). Hysterectomy rates were lower in the LNG-IUS group than in the oral group (P = .001). Recurrence rate was 0% in the LNG-IUD group compared to 12.5% in the oral group.

Conclusion

In management of EH without atypia, LNG-IUS achieves a higher regression and a lower hysterectomy rate than oral progesterone and could be used as a first-line therapy. Similar content being viewed by others

References

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