Efficacy and Safety of Etonogestrel + 17β-Estradiol Vaginal Ring (MK-8342B) in the Treatment of Women With Primary Dysmenorrhea (MK-8342B-060)

• Status: Terminated
• Trial end date: 2016-09-12
• Target enrollment: 0
• Participant gender: Female

Summary

The purpose of this study was to evaluate the efficacy of the etonogestrel (ENG) + 17β-estradiol (E2) (MK-8342B) vaginal ring compared to placebo vaginal ring in the treatment of dysmenorrhea at Treatment Cycle 2. This study was also to assess the safety and tolerability of the ENG-E2 vaginal rings over 4 treatment cycles. Primary hypothesis: Relative to the placebo ring, the ENG-E2 vaginal ring results in a greater proportion of participants with a ≥3-point reduction in peak pelvic pain score and no increase in the number of rescue pain relief (ibuprofen) tablets taken at Treatment Cycle 2 as compared to baseline.

• Phase: Phase 3
• Accepts Healthy Volunteers?: No

Details

• Lead Sponsor: Merck Sharp & Dohme Corp.
• Treatments: Desogestrel; Estradiol; Estradiol 17 beta-cypionate; Estradiol 3-benzoate; Estradiol valerate; Etonogestrel; Ibuprofen; Polyestradiol phosphate

Criteria

Inclusion Criteria:

• Post-menarcheal female, age ≤50 years, in good physical and mental health.

• History of moderate to severe primary dysmenorrhea for the past 3 months or longer, and no history of recurrent non-menstrual pelvic pain intermittently or continuously throughout the month, and no history of dysmenorrhea secondary to structural pelvic pathology.

• Body mass index (BMI) of ≥18 and <38 kg/m^2.

• History of regular menstrual cycles with a cycle length between 24 and 32 days (inclusive) for the past three months.

• Willing to adhere to use of the vaginal ring and to all required trial procedures, and not planning to relocate during the study.

• Willing to use the rescue medication ibuprofen at the study recommended dose and no other pain medication for treatment of dysmenorrhea.

Exclusion Criteria:

• Cardiovascular risks and disorders, including history of venous thromboembolic [VTE] events, arterial thrombotic or thromboembolic [ATE] events, transient ischemic attack, angina pectoris, or claudication; at higher risk of VTE events due to recent prolonged immobilization, plans for surgery requiring prolonged immobilization, or a hereditary or acquired predisposition or elevated risk for venous or arterial thrombosis; currently smoking or uses tobacco/nicotine containing products and is ≥35 years of age; uncontrolled or severe hypertension; history of severe dyslipoproteinemia; <35 years of age with a history of migraine with aura or focal neurological symptoms or ≥35 years of age with a history of migraines with or without aura or focal neurologic symptoms; diabetes mellitus with end-organ involvement or >20 years duration; multiple cardiovascular risk factors such as ≥35 years of age, obesity, inadequately controlled hypertension, use of tobacco/ nicotine products, or inadequately controlled diabetes.

• Gynecologic conditions: surgically sterilized, has used hormonal contraceptives (pill, patch, ring, implant, intrauterine system) within the past 3 months, or currently uses non-hormonal intrauterine device (IUD); within past 6 months has had undiagnosed (unexplained) abnormal vaginal bleeding or any abnormal vaginal bleeding expected to recur during study; has gonorrhea, chlamydia, or trichomonas or symptomatic vaginitis/cervicitis; has abnormal cervical smear or positive high-risk human papillomavirus (HPV) test at screening or documented within 3 years of screening; has Stage 4 pelvic organ prolapse (1 cm beyond introitus) or lesser degrees of prolapse with history of difficulty retaining tampons, vaginal rings, or other products within vagina.

• Gastrointestinal and urologic disorders, including history of pancreatitis associated with severe hypertriglyceridemia; clinically significant liver disease, including active viral hepatitis or cirrhosis; or a history of the gastrointestinal or urologic tract which may cause pelvic pain.

• Other medical disorders, including history of malignancy ≤5 years prior to signing informed consent except for adequately treated basal cell or squamous cell skin cancer or in situ cervical cancer; any disease that may worsen under hormonal treatment such as disturbances in bile flow, systemic lupus erythematosus, pemphigoid gestationis or idiopathic icterus during previous pregnancy, middle-ear deafness, Sydenham chorea, or porphyria; known allergy/sensitivity or contraindication to the investigational products or their excipients; known allergy/sensitivity or contraindication to ibuprofen, or has experienced asthma, urticaria, or allergic-type reactions after taking aspirin, or other nonsteroidal anti-inflammatory drugs; history of drug or alcohol abuse or dependence.

• Known or suspected pregnancy, or had been pregnant or breastfeeding within past 2 months.

• Has used investigational drug and/or participated in other clinical trial within past 8 weeks.