Clinical trial NCT02480647: Clinical Trial the Use of Levonorgestrel-releasing Intrauterine System Versus Etonogestrel Implant in Endometriosis
Official title: Randomized Clinical Trial the Use of Levonorgestrel-releasing Intrauterine System Versus Etonogestrel Implant in Pelvic Pain Control in Women With Endometriosis
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: PHASE4
Conditions: Endometriosis
Lead sponsor: University of Campinas, Brazil
Sponsor class: OTHER
First posted: 2015-06-24
Enrollment: 100
Sex: FEMALE
Minimum age (years): 18
Maximum age (years): 45
Standard ages: ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: TREATMENT

Brief summary: Randomized clinical trial the use of levonorgestrel releasing intrauterine system.

Objectives: To evaluate and compare the efficacy of- levonorgestrel releasing intrauterine system l(LNG-IUS) in relation to the subdermal implant releasing etonogestrel (ENG) in the control of chronic pelvic pain and / or dysmenorrhea in women endometriosis.

Detailed description: Randomized clinical trial the use of levonorgestrel releasing intrauterine system.

Objectives: To evaluate and compare the efficacy of- levonorgestrel releasing intrauterine system (LNG-IUS) in relation to the subdermal implant releasing etonogestrel (ENG) in the control of chronic pelvic pain and / or dysmenorrhea in women with endometriosis.

Methods: Will be assessed 103 women, aged 18-45 years, diagnosis of endometriosis confirmed by laparoscopy or laparotomy that presents chronic pelvic pain and / or dysmenorrhea. The study will be experimental, randomized , (5' women will be allocated to the LNG-IUS and 52 women will use the implant subdermal ENG). Women will be invited to participate in the study on the day and having the Family Planning Clinic with pelvic pain complaints and / or dysmenorrhea with a confirmed diagnosis of endometriosis in search of inserting a LNG-IUS. That day will be invited to be allocated by lottery (through a system of computer generated randomization; with opaque and sealed envelopes), the group that will use LNG-IUS or subdermal implant ENG. At the inclusion in the study will be held the insertion of the LNG-IUS or ENG implant and on this day the pain will be evaluated by visual analogue scale (VAS) of pain and applied the evaluation questionnaire of endometriosis. It will be a calendar to record delivered daily bleeding and EVA for daily assessment of pain. Women will return each 30 days (± 3 days) where the pain of registration will be evaluated by EVA and will be collected the bleeding and delivered a new calendar for the next 30 days. The end of the study It is expected to 180 days post-insertion of the LNG-IUS or the implant and, in the latter evaluation, will again be applied questionnaire. Cancer antigen 125 (CA-125), CD23 and endometrial biopsy will be evaluated at baseline and at last follow-up ( +/- 180 days).

Inclusion criteria:

* Women aged 18 to 45
* Absence of pregnancy
* Patients with chronic pelvic pain and / or dysmenorrhea with pain scores ≥ 4 on EVA pain and surgical and histopathological diagnosis of endometriosis in 14 last three months to two years, according to the current classification of the American Society for Reproductive Medicine and
* Accept participate and sign the consent form and clarified.

Eligibility criteria: Inclusion Criteria:

* Women aged 18 to 45
* Absence of pregnancy
* Patients with chronic pelvic pain and / or dysmenorrhea with pain scores ≥ 4 on EVA pain and surgical and histopathological diagnosis of endometriosis in 14 last three months to two years, according to the current classification of the American Society for Reproductive Medicine and Enzian classification.
* Accept participate and sign the consent form and clarified

Exclusion criteria:

* Current wish to get pregnant
* I just want to use the LNG-IUS as treatment
* Contraindication to the use of LNG-IUS: Current pelvic inflammatory disease or appellant; infection of the lower genital tract; infected abortion during the last 3 months; purulent cervicitis; uterine or cervical malignancy; bleeding abnormal uterine undiagnosed; congenital uterine anomalies or acquired conditions associated with increased susceptibility to infections; acute liver disease or liver tumors; hypersensitivity to LNG.
* Contraindications to the use of ENG implants: pregnancy or suspected pregnancy;
* Active venous thromboembolic disorder; presence or history of liver disease serious as liver function values have not returned to normal; progestogen dependent tumors; abnormal bleeding undiagnosed; hypersensitivity to any component of implante.
* Abusive use of alcohol and / or other illicit drugs.

Primary outcomes:
measure: Pelvic pain. Pain intensity measure: Self reported pain intensity daily. each item scored 0-10.
timeFrame: 6 months
Secondary outcomes:
measure: Uterine bleeding
timeFrame: 6 months
measure: Cancer antigen 125
timeFrame: Baseline and after 180 days
Other outcomes:
Locations:
city: Campinas
country: Brazil
facility: Nelsilene Mota Carvalho
state: São Paulo
Study officials:
affiliation: University of Campinas, Brazil
name: Nelsilene Tavares, MD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Walch K, Unfried G, Huber J, Kurz C, van Trotsenburg M, Pernicka E, Wenzl R. Implanon versus medroxyprogesterone acetate: effects on pain scores in patients with symptomatic endometriosis--a pilot study. Contraception. 2009 Jan;79(1):29-34. doi: 10.1016/j.contraception.2008.07.017. Epub 2008 Sep 25.
citation: Yisa SB, Okenwa AA, Husemeyer RP. Treatment of pelvic endometriosis with etonogestrel subdermal implant (Implanon). J Fam Plann Reprod Health Care. 2005 Jan;31(1):67-70. doi: 10.1783/0000000052972799.
citation: Zomer MT, Ribeiro R, Trippia CH, Cavalcanti TC, Hayashi RM, Kondo W. [Correlation between serum Ca-125 levels and surgical findings in women with symptoms evocative of endometriosis]. Rev Bras Ginecol Obstet. 2013 Jun;35(6):262-7. doi: 10.1590/s0100-72032013000600005. Portuguese.
citation: Gerlinger C, Schumacher U, Faustmann T, Colligs A, Schmitz H, Seitz C. Defining a minimal clinically important difference for endometriosis-associated pelvic pain measured on a visual analog scale: analyses of two placebo-controlled, randomized trials. Health Qual Life Outcomes. 2010 Nov 24;8:138. doi: 10.1186/1477-7525-8-138.
citation: Carvalho N, Margatho D, Cursino K, Benetti-Pinto CL, Bahamondes L. Control of endometriosis-associated pain with etonogestrel-releasing contraceptive implant and 52-mg levonorgestrel-releasing intrauterine system: randomized clinical trial. Fertil Steril. 2018 Nov;110(6):1129-1136. doi: 10.1016/j.fertnstert.2018.07.003.