Baseline endometriosis-associated pain burden: Data from 1600+ women enrolled in elagolix clinical trials

Nicholas Leyland, Stephanie J. Estes, Samantha Eichner, Ahmed M. Soliman, Yabing Mai, Michael C. Snabes, Hugh S. Taylor, Eric S. Surrey
In: Journal of Endometriosis and Pelvic Pain Disorders · 2019 · vol. 11(3) , pp. 117–125 · doi:10.1177/2284026519864232 · W2965339816
OA: closed CC0
View on OpenAlex View at publisher
⚙ AI-generated summary by gemini-2.5-flash-lite, 2026-06-09 ⓘ

This study characterized baseline endometriosis-associated pain in over 1600 women, finding that pain was extensive and often moderate to severe on most days, both during menstruation and on nonmenstruating days.

One-sentence paraphrase of the abstract; not a substitute for reading it. No clinical advice. How this works

Abstract

Background: The daily pain burden experienced by women with endometriosis has not been well studied. Objective: To characterize baseline pain among women with moderate-to-severe endometriosis-associated pain enrolled in phase 3 studies of elagolix, an oral, nonpeptide gonadotropin-releasing hormone antagonist. Study design: Data were pooled from the screening phase of two randomized, double-blind, placebo-controlled clinical trials. After cessation of endometriosis medications, patients entered the screening phase during which symptoms (dysmenorrhea, nonmenstrual pelvic pain, and dyspareunia) and rescue medication use were recorded daily in electronic diaries. Endometriosis-associated pain was also scored using the Numeric Rating Scale (range 0–10). Baseline was defined as the last 35 days during the screening period. Results: Endometriosis-associated pain was reported by the 1686 study participants on most days during the baseline interval. Pain was often moderate or severe, with a mean Numeric Rating Scale score of 5.6 ± 1.7. Women reported dysmenorrhea an average of 8.1 ± 3.0 days (97.9% ± 7.0% of menstruating days), nonmenstrual pelvic pain on 20.5 ± 5.4 days (90.3% ± 15.8% of nonmenstruating days), and dyspareunia on 8.7 ± 8.0 days (81.7% ± 29.7% of sexually active days). When they occurred, dysmenorrhea, nonmenstrual pelvic pain, and dyspareunia were frequently moderate or severe in intensity. Women were free of pelvic pain for an average of 2.4 ± 3.9 days during the 35-day evaluation interval. Conclusion: Among women with untreated moderate-to-severe endometriosis pain, the daily burden of pain was extensive, both during menstruation and on nonmenstruating days.

My notes (saved in your browser only)

Condition tags

endometriosisdysmenorrheadyspareunia

Citation neighborhood (2-hop)

Papers in the corpus that this work cites (lower rings, blue) and that cite this one (upper rings, green). Dot size scales with the paper's in-corpus citation count — bigger dot = more influential within the endo/adeno field. Click a dot to open that paper. Outer rings show 2-hop neighbours — papers reached through the immediate citers/citees. [ collapse to 1-hop ]

References (31)

Source provenance

openalex
last seen: 2026-06-10T17:14:06.276822+00:00
License: CC0 · commercial use OK