Please use this identifier to cite or link to this item: https://hdl.handle.net/11499/5176
Title: The effects of post-surgical administration of goserelin plus anastrozole compared to goserelin alone in patients with severe endometriosis: A prospective randomized trial
Authors: Soysal, Seyide
Soysal, Mehmet Emin
Ozer, S.
Gül, Nihat
Gezgin, Tuğba
Keywords: Anastrozole
Endometriosis
Goserelin
anastrozole
calcium
estradiol
estrogen
goserelin
placebo
vitamin D
adult
article
bone density
bone mineral
clinical trial
comparative study
concentration (parameters)
confidence interval
controlled clinical trial
controlled study
disease severity
drug effect
drug efficacy
endocrine function
endometriosis
estrogen synthesis
female
follow up
human
hypothesis
Kaplan Meier method
lumbar spine
major clinical study
menopausal syndrome
nociception
osteolysis
outcomes research
postoperative care
premenopause
prospective study
quality of life
randomized controlled trial
recurrent disease
risk assessment
scoring system
side effect
statistical significance
survival
symptomatology
treatment outcome
treatment withdrawal
Publisher: Oxford University Press
Abstract: Background: Among patients using GnRH analogues for endometriosis it has been postulated that peripheral and inflammation-induced in-situ aromatization of adrenal androgens are probably the main reasons for the high rates of failure during follow-up. We hypothesized that in cases with premenopausal severe endometriosis, use of a combination of anastrozole and goserelin to achieve almost maximal endocrine blockade of estrogen synthesis after conservative surgery may increase the pain-free interval and reduce the recurrence rates as compared to goserelin alone. Methods: In a prospective randomized trial, we evaluated the efficacy of using either a combination of anastrozole and goserelin for 6 months or goserelin alone for 6 months after conservative surgery for severe endometriosis. The primary outcome measures were the symptom recurrence rates and the impact of treatment on endometriosis-related multidimensional score. The secondary outcome measures were the impact of allocated treatment regimens on menopausal quality of life and on lumbar spine bone mineral density (BMD). Results: When we analyzed the Kaplan-Meier survival curves, we detected a statistically significant advantage of goserelin plus anastrozole as compared to goserelin only, in terms of the median time to detect symptom recurrence (>2.4 versus 1.7 months; log-rank test; P = 0.0089). This statistically significant advantage occurred with a relative risk of 4.3 [95% confidence interval (CI) 1.3-9.8]. Three cases out of 40 recurred in the goserelin plus anastrozole arm (7.5%), whereas we detected recurrences in 14 cases out of 40 cases in the goserelin-only arm (35%.) during the follow-up period of 24 months. Based on these data, the interpretation of Kaplan-Meier curves indicates that at the end of follow-up, 54.7 versus 10.4%, respectively, of the patients were free of recurrence. The mean of the differences in terms of ?baseline-24 months post-medical therapy multidimensional score were statistically significant in favour of goserelin and anastrozole (9.2 ± 2.1 versus 6.7 ± 2.8; paired t-test; P < 0.0001; 95% CI 1.5-4.0). We observed a statistically significant difference in suppression of estradiol concentrations and a significantly greater BMD loss at the end of treatment in the goserelin and anastrozole arm as compared to goserelin-only arm. However, this did not elicit deterioration in menopausal quality of life and the observed bone loss was not significant in terms of ?BMD between the groups at 2 years of treatment withdrawal. Conclusions: Six months of treatment with anastrozole and goserelin as compared to goserelin alone increased the pain-free interval and decreased symptom recurrence rates in patients following surgery for severe endometriosis. Furthermore, menopausal quality of life and BMD at 2 years after medical therapy remained unaffected.
URI: https://hdl.handle.net/11499/5176
https://doi.org/10.1093/humrep/deh035
ISSN: 0268-1161
Appears in Collections:PubMed İndeksli Yayınlar Koleksiyonu / PubMed Indexed Publications Collection
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
Tıp Fakültesi Koleksiyonu
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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