Ultralong administration of gonadotropin-releasing hormone agonists before in vitro fertilization improves fertilization rate but not clinical pregnancy rate in women with mild endometriosis: a prospective, randomized, controlled trial

RCT OA: closed CC0 ⤵ 35 in-corpus citations
View on OpenAlex View on PubMed View at publisher
⚙ AI-generated summary by gemini-2.5-flash-lite, 2026-06-06 ⓘ

Pre-IVF administration of GnRH agonists for an ultralong duration improved fertilization rates in women with mild endometriosis but did not increase clinical pregnancy rates.

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

Abstract

OBJECTIVE: To evaluate the effects of gonadotropin-releasing hormone agonists (GnRH-a) on fertility in women with mild endometriosis who are undergoing in vitro fertilization and embryo transfer (IVF-ET) procedures. DESIGN: Prospective, randomized, controlled trial. SETTING: Three tertiary university hospitals. PATIENT(S): Four hundred infertile women with mild endometriosis, documented with laparoscopy, undergoing IVF and 200 women with tubal factor infertility. INTERVENTION(S): Administration of GnRH-a for 3 months before an IVF attempt (group A, n = 200) or IVF without GnRH-a (group B, n = 200). MAIN OUTCOME MEASURE(S): Follicular fluid (FF) levels of tumor necrosis factor α (TNF-α), interleukin-1β (IL-1β), IL-6, IL-8, and IL-1 receptor antagonist; fertilization rate (FR), implantation rate (IR), quality of embryos, and clinical pregnancy rate (PR). RESULT(S): Women who received GnRH-a had a statistically significantly reduced concentration of FF cytokines compared with women who did not receive this regimen. Women in group B had a reduced FR (61.7; 95% CI, 59.20-64.20) compared with the women in group A (72.7; 95% CI, 70.50-74.90) and compared with the women with tubal factor infertility (74.7; 95% CI, 72.00-77.24). The embryo quality, IR, and clinical PR showed no statistically significant improvement in the women of group A compared with group B. CONCLUSION(S): Women who received GnRH-a for 3 months had a lower concentration of FF cytokines. These women had also a higher FR than the women who did not receive GnRH-a. However, the IR, embryo quality, and clinical PR showed no statistically significant difference when comparing the two groups. CLINICALTRIALS. GOV ID: NCT01269125.

My notes (saved in your browser only)

Condition tags

endometriosis

MeSH descriptors

Endometriosis Fertilization in Vitro Fertilization in Vitro Gonadotropin-Releasing Hormone Leuprolide Pregnancy Rate Adult Adult Delayed-Action Preparations Delayed-Action Preparations Delayed-Action Preparations Drug Administration Schedule Drug Administration Schedule Endometriosis Endometriosis Endometriosis Female Female Fertility Agents, Female Fertility Agents, Female

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 (34)

Cited by (38)

Source provenance

europepmc
last seen: 2026-10-17T06:09:56.316927+00:00
openalex
last seen: 2026-06-10T17:14:06.276822+00:00
pubmed
last seen: 2026-10-08T21:27:00.370498+00:00
License: CC0 · commercial use OK