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Treatment of Endometriosis With Norethindrone Acetate ( NA) VS. Gonadotropin- Releasing Hormone (GnRH) Agonist (Lupron Depot 11.25 mg)

2014-08-27 03:39:11 | BioPortfolio

Summary

(A) Major 1) to compare the effectiveness of norethindrone acetate (NA) with GnRH agonist (Lupron-Depot-3) in relieving symptoms of endometriosis, 2) to compare bone density in the two treated groups in order to demonstrate that NA does not affect bone density; (B) Minor: 1) To compare the lipid profiles of patients in the two groups to confirm the hypothesis that the effects of NA and GnRH agonists on lipid profiles are similar, 2) To determine whether quality of life, assessed by questionnaire, is better in patients assigned to NA than in patients assigned to GnRH, 3) To determine whether NA has fewer adverse effects than GnRH agonist.

Description

Objectives: (A) Major 1) to compare the effectiveness of norethindrone acetate (NA) with GnRH agonist (Lupron-Depot-3) in relieving symptoms of endometriosis, 2) to compare bone density in the two treated groups in order to demonstrate that NA does not affect bone density; (B) Minor: 1) To compare the lipid profiles of patients in the two groups to confirm the hypothesis that the effects of NA and GnRH agonists on lipid profiles are similar, 2) To determine whether quality of life, assessed by questionnaire, is better in patients assigned to NA than in patients assigned to GnRH, 3) To determine whether NA has fewer adverse effects than GnRH agonist.

After signing an IRB approved consent from 112 women with symptomatic endometriosis, diagnosed surgically, will be treated with NA or Lupron-Depot-3 for 24 weeks. After 24 weeks both groups will be treated only with NA until 52 weeks. After that, both groups will be followed for an additional 52 weeks to assess any return of clinical symptoms and to determine whether laboratory tests of drug related changes return to pretreatment levels.

Treatment regimens are as follows: For the first 24 weeks, women in the NA group will be treated with 5 mg NA daily and a placebo injection every 12 weeks. In case of bleeding, the NA dose will be increased (max 15 mg) until bleeding stops, and then decreased by 2.5 mg every 4 weeks to a final dose of 7.5 mg which will be maintained for the remainder of the 24 weeks. For the first 24 weeks, women in the GnRH groups will receive Lupron-Depot-3 injections every 12 weeks plus placebo pills daily – bleeding will be treated with an increase in placebo pills to simulate treatment in the NA group. After 24 weeks, all women will be on identical regimens of 5 mg NA pills daily and no injections.

On the first treatment day, subjects will have the following tests/assessments: bone density with DEXA, scoring of endometriosis symptoms, quality of life questionnaire, general physical examination, lipid profile, estradiol (E2), N-telopeptide, and pregnancy test. All tests, except bone density and lipid profile, will be repeated at 12, 24, and 52 weeks of treatment. Bone density will be performed at 24 and 52 weeks and lipid profile will be performed at 12 and 52 weeks of treatment. In the follow-up period, physical examination, quality of life questionnaires, scoring of symptoms will be done at 3, 6, 9 and 12 months. Lipid profile, N-telopeptide and E2 will be performed at 3 and 12 months and bone density at 12 month follow-up.

The objectives stated above will be compared between the two groups at 12, 24, and 52 weeks of treatment and at 6-month intervals during the follow-up period.

Study Design

Allocation: Randomized, Control: Active Control, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double-Blind, Primary Purpose: Treatment

Conditions

Endometriosis

Intervention

Norethindrone Acetate, GnRH Agonist (Lupron Depot)

Location

SUNY Downstate Medical Center
Brooklyn
New York
United States
11203

Status

Recruiting

Source

Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:39:11-0400

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Medical and Biotech [MESH] Definitions

A synthetic progestational hormone with actions similar to those of PROGESTERONE but functioning as a more potent inhibitor of ovulation. It has weak estrogenic and androgenic properties. The hormone has been used in treating amenorrhea, functional uterine bleeding, endometriosis, and for contraception.

A potent synthetic agonist of GONADOTROPIN-RELEASING HORMONE with 3-(2-naphthyl)-D-alanine substitution at residue 6. Nafarelin has been used in the treatments of central PRECOCIOUS PUBERTY and ENDOMETRIOSIS.

An enzyme that catalyzes the conversion of acetate esters and water to alcohols and acetate. EC 3.1.1.6.

Megestrol acetate is a progestogen with actions and uses similar to those of the progestogens in general. It also has anti-androgenic properties. It is given by mouth in the palliative treatment or as an adjunct to other therapy in endometrial carcinoma and in breast cancer. Megestrol acetate has been approved to treat anorexia and cachexia. (From Reynolds JEF(Ed): Martindale: The Extra Pharmacopoeia (electronic version). Micromedex, Inc, Englewood, CO, 1995)

A 6-methyl PROGESTERONE acetate with reported glucocorticoid activity and effect on ESTRUS.

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