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Efficacy and Safety of Etonogestrel + 17β-Estradiol Vaginal Ring in Women at Risk for Pregnancy (MK-8342B-061)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
 
ClinicalTrials.gov Identifier: NCT02524288
Recruitment Status : Terminated (This study was terminated by the Sponsor due to a business decision to discontinue product development for reasons unrelated to safety or efficacy outcomes.)
First Posted : August 14, 2015
Results First Posted : September 25, 2017
Last Update Posted : August 31, 2018
Sponsor:
Information provided by (Responsible Party):
Merck Sharp & Dohme Corp.

Brief Summary:
The purpose of this study is to assess the contraceptive efficacy of the Etonogestrel (ENG) + 17β-Estradiol (E2) vaginal ring in women between 18 and 35 years of age based on the number of in-treatment pregnancies as expressed by the Pearl Index (PI). The study will also assess the safety and tolerability of the ENG-E2 vaginal ring.

Condition or disease Intervention/treatment Phase
Contraception Drug: ENG-E2 125 μg/300 μg vaginal ring Phase 3

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 1941 participants
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Prevention
Official Title: A Phase 3, Single Arm, Clinical Trial to Study the Contraceptive Efficacy and Safety of the MK-8342B (Etonogestrel + 17β-Estradiol) Vaginal Ring in Healthy Women 18 Years of Age and Older, At Risk for Pregnancy
Actual Study Start Date : August 31, 2015
Actual Primary Completion Date : September 16, 2016
Actual Study Completion Date : September 16, 2016

Resource links provided by the National Library of Medicine


Arm Intervention/treatment
Experimental: ENG-E2 125 μg/300 μg
Participants will receive up to 13 cycles of ENG-E2 125 μg/300 μg. Each cycle will consist of 21 days of vaginal ring use followed by 7 vaginal ring-free days.
Drug: ENG-E2 125 μg/300 μg vaginal ring
Up to 13 cycles of ENG-E2 125 μg/300 μg administered intravaginally, each cycle consisting of 21 days of vaginal ring use followed by 7 vaginal ring-free days.




Primary Outcome Measures :
  1. Number of In-Treatment Pregnancies Per 100 Woman-Years of Exposure in Participants 18-35 Years of Age (Pearl Index) [ Time Frame: Up to 1 year (13 28-day cycles) ]
    The Pearl Index is the number of in-treatment pregnancies with a conception date in any of the in-treatment cycles, divided by all treatment cycles in each participant from the first treatment cycle to the last treatment cycle (due either to discontinuation or completion), regardless of whether a treatment cycle was "at risk" or not. One woman-year is defined as 13 treatment cycles x 28 days. These efficacy results should be interpreted with caution. Due to the discontinuation of product development and early trial termination, the number of "at risk" treatment cycles in the denominator is based on uncleaned diary data.

  2. Number of Participants With One or More Adverse Events (AEs) [ Time Frame: From insertion of the first vaginal ring up to and including 14 days after removal of the last vaginal ring (up to approximately 1 year) ]
    An AE is any untoward medical occurrence in a participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of a medicinal product or protocol-specified procedure, whether or not considered related to the medicinal product or protocol specified procedure. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a pre-existing condition that is temporally associated with the use of the Sponsor's product, is also an AE.

  3. Number of Participants Who Discontinued Treatment Due to an AE [ Time Frame: From insertion of the first vaginal ring up to and including 14 days after removal of the last vaginal ring (up to approximately 1 year) ]
    An AE is any untoward medical occurrence in a participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of a medicinal product or protocol-specified procedure, whether or not considered related to the medicinal product or protocol specified procedure. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a pre-existing condition that is temporally associated with the use of the Sponsor's product, is also an AE.

  4. Number of Participants With One or More Drug-related AEs [ Time Frame: From insertion of the first vaginal ring up to and including 14 days after removal of the last vaginal ring (up to approximately 1 year) ]
    An AE is any untoward medical occurrence in a participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of a medicinal product or protocol-specified procedure, whether or not considered related to the medicinal product or protocol specified procedure. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a pre-existing condition that is temporally associated with the use of the Sponsor's product, is also an AE. An investigator who is a qualified physician determined whether an AE is drug-related.

  5. Number of Participants Who Discontinued Treatment Due to a Drug-related AE [ Time Frame: From insertion of the first vaginal ring up to and including 14 days after removal of the last vaginal ring (up to approximately 1 year) ]
    An AE is any untoward medical occurrence in a participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of a medicinal product or protocol-specified procedure, whether or not considered related to the medicinal product or protocol specified procedure. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a pre-existing condition that is temporally associated with the use of the Sponsor's product, is also an AE. An investigator who is a qualified physician determined whether an AE is drug-related.



Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   Yes
Criteria

Inclusion Criteria:

  • Premenopausal female at risk for pregnancy and seeking contraception.
  • Willing to use a hormonal contraceptive vaginal ring for up to 13 treatment cycles, and not intending to use any other form of contraception.
  • Body mass index (BMI) of ≥18 and <38 kg/m2.
  • Willing to adhere to use of vaginal ring and all required trial procedures.

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 older age, obesity, inadequately controlled hypertension, use of tobacco/ nicotine products, or inadequately controlled diabetes.
  • Gastrointestinal disorders, including history of pancreatitis associated with severe hypertriglyceridemia; clinically significant liver disease, including active viral hepatitis or cirrhosis.
  • 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 investigational product or its excipients; history of drug or alcohol abuse or dependence.
  • Recent, current, or suspected pregnancy; or has not had at least 2 menstrual cycles or has not completed two 28-day cycles of a hormonal contraceptive (pill, patch or ring) following a recent pregnancy; or is breastfeeding.
  • Gynecologic conditions: has gonorrhea, chlamydia, or trichomonas or symptomatic vaginitis/cervicitis; has abnormal cervical Pap test or positive high-risk human papillomavirus (HPV) test at screening or documented within 3 years of screening; currently using an intrauterine device/ intrauterine system (IUD/ IUS) or contraceptive implant; within past 6 months has had undiagnosed (unexplained) abnormal vaginal bleeding or any abnormal bleeding expected to recur during trial; 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.
  • Has used investigational drug and/or participated in other clinical trial within past 8 weeks.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02524288


Sponsors and Collaborators
Merck Sharp & Dohme Corp.
Investigators
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Study Director: Medical Director Merck Sharp & Dohme Corp.

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Responsible Party: Merck Sharp & Dohme Corp.
ClinicalTrials.gov Identifier: NCT02524288    
Other Study ID Numbers: 8342B-061
First Posted: August 14, 2015    Key Record Dates
Results First Posted: September 25, 2017
Last Update Posted: August 31, 2018
Last Verified: August 2018
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: Yes
Plan Description: https://www.merck.com/clinical-trials/pdf/ProcedureAccessClinicalTrialData.pdf
URL: http://engagezone.msd.com/ds_documentation.php

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Studies a U.S. FDA-regulated Drug Product: Yes
Studies a U.S. FDA-regulated Device Product: No
Additional relevant MeSH terms:
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Estradiol 3-benzoate
Estradiol 17 beta-cypionate
Etonogestrel
Estradiol
Polyestradiol phosphate
Estrogens
Hormones
Hormones, Hormone Substitutes, and Hormone Antagonists
Physiological Effects of Drugs
Contraceptive Agents
Reproductive Control Agents
Contraceptive Agents, Female