Deep Infiltrating Endometriosis Influence of Endometriosis and Progestin Therapy on the Course of COVID Infection: A Prospective Study at a University Endometriosis Center in Germany

Morva Tahmasbi Rad ( Department of Obstetrics and Gynecology, University of Frankfurt, Frankfurt am Main, Germany )

Lisa Marie Wilhelm ( Department of Obstetrics and Gynecology, University of Frankfurt, Frankfurt am Main, Germany )

Denis Brachmann ( Department of Obstetrics and Gynecology, University of Frankfurt, Frankfurt am Main, Germany )

Sven Becker ( Department of Obstetrics and Gynecology, University of Frankfurt, Frankfurt am Main, Germany )

Sophie Simon ( Department of Obstetrics and Gynecology, University of Frankfurt, Frankfurt am Main, Germany )

https://doi.org/10.37155/3060-8708-0302-3

Abstract

Objective: Endometriosis is a chronic immune-related inflammatory disease. As progestin therapy modulates estrogen and progesterone pathways it may also influence antiviral immune response. This study aimed to evaluate the impact of deep infiltrating endometriosis (DIE) and progestin therapy on the clinical course of SARS-CoV-2 infection. Methods: This prospective, single-center cohort study included 30 women with confirmed deep infiltrating endometriosis (DIE). Clinical data and standardized questionnaires were used to assess SARS-CoV-2 infection status, symptom severity, duration of PCR positivity, vaccination status, and endometriosis symptoms. Patients were stratified according to progestin therapy use versus no hormonal treatment. Results: Seventeen women (56.7%) were receiving progestin therapy, while 13 (43.3%) did not. The mean age was 34.0 ± 7.2 years, with no significant baseline differences between the groups. All patients contracted SARS-CoV-2. The mean time to PCR negativity was significantly longer in the progestin group (10.76 ± 4.1 vs. 8.00 ± 2.2 days; p = 0.026). Moderate COVID-19 symptoms were more frequent among progestin users (47.1% vs. 7.7%; p = 0.042), whereas mild disease predominated in non-users (92.3%). No hospitalizations or thromboembolic events were observed. Endometriosis-related symptoms remained stable following both SARS-CoV-2 infection and vaccination. Conclusion: In women with DIE, progestin therapy was associated with prolonged viral clearance and a higher frequency of moderate COVID-19 symptoms. Although causality cannot be established in this small cohort, the findings suggest a potential interaction between hormonal therapy and the immune response to SARS-CoV-2. As current evidence in this area remains scarce, these preliminary observations provide a basis for future larger, adequately powered prospective studies aimed at elucidating the immunological mechanisms underlying these associations and determining their clinical relevance.

Keywords

Deep Infiltrating Endometriosis (DIE); COVID; Progestin

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