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Progestin-only Contraceptive

ENG Implant for Birth Control

Phase 3
Waitlist Available
Research Sponsored by Merck Sharp & Dohme Corp.
Eligibility Criteria Checklist
Specific guidelines that determine who can or cannot participate in a clinical trial
Must have
Palpable intact ENG implant in the upper inner-arm for 36 months from the date of insertion at the time of enrollment, and has documentation of the insertion date (for example, Nexplanon user card or medical record completed on the date of insertion).
Not diagnosed with perimenopause or menopause.
Timeline
Screening 3 weeks
Treatment Varies
Follow Up up to 60 months (from 3 years prior to study entry to 2 years after study entry)
Awards & highlights

Study Summary

This trial will assess the efficacy and safety of the etonogestrel contraceptive implant when used for 4-5 years.

Who is the study for?
This trial is for women in good health, not going through menopause, who have had regular menstrual cycles and a palpable ENG implant for 3 years. They must be sexually active with a fertile male partner and want contraception without using other methods. Participants should commit to the study's procedures and timeline.Check my eligibility
What is being tested?
The study tests if the Etonogestrel (ENG) contraceptive implant remains effective in preventing pregnancy during the fourth and fifth years of use. It currently has approval for three years, but this trial seeks to confirm its safety and efficacy beyond that period.See study design
What are the potential side effects?
While specific side effects are not listed here, typical ones associated with contraceptive implants may include irregular bleeding, headaches, breast tenderness, mood changes, weight gain, or local reactions at the implant site.

Eligibility Criteria

Inclusion Criteria

You may be eligible if you check “Yes” for the criteria below
Select...
I have a birth control implant in my arm for 3 years with proof of when it was put in.
Select...
I have not been diagnosed with perimenopause or menopause.
Select...
I have not been diagnosed with perimenopause or menopause.
Select...
I have a birth control implant in my arm for 3 years with proof of when it was put in.

Timeline

Screening ~ 3 weeks
Treatment ~ Varies
Follow Up ~up to 60 months (from 3 years prior to study entry to 2 years after study entry)
This trial's timeline: 3 weeks for screening, Varies for treatment, and up to 60 months (from 3 years prior to study entry to 2 years after study entry) for reporting.

Treatment Details

Study Objectives

Outcome measures can provide a clearer picture of what you can expect from a treatment.
Primary outcome measures
Number of Participants Who Discontinue Treatment (Implant Removed) Due to an Adverse Event During Extended-Duration Use
Number of Participants Who Experience One or More Adverse Events During Extended-Duration Use
Pregnancy Rate (Pearl Index) for Alternative At Risk Cycles During Extended-Duration Use
+1 more
Secondary outcome measures
Cumulative Pregnancy Rate During 4 Years of Implant Use
Cumulative Pregnancy Rate During 5 Years of Implant Use
Mean Length of Bleeding and/or Spotting Episodes During Extended-Duration Use as Assessed in 90-day Reference Periods
+13 more

Trial Design

1Treatment groups
Experimental Treatment
Group I: ENG implantExperimental Treatment1 Intervention
Participants will have the ENG 68 mg implant inserted and in place for 36 months before enrollment. The ENG implant will remain in place for an additional 24 months.

Find a Location

Who is running the clinical trial?

Merck Sharp & Dohme Corp.Lead Sponsor
2,286 Previous Clinical Trials
4,581,324 Total Patients Enrolled
Organon and CoLead Sponsor
491 Previous Clinical Trials
1,732,398 Total Patients Enrolled
Medical DirectorStudy DirectorMerck Sharp & Dohme LLC
2,777 Previous Clinical Trials
8,062,982 Total Patients Enrolled

Media Library

Etonogestrel (ENG) Implant (Progestin-only Contraceptive) Clinical Trial Eligibility Overview. Trial Name: NCT04626596 — Phase 3
Birth Control Research Study Groups: ENG implant
Birth Control Clinical Trial 2023: Etonogestrel (ENG) Implant Highlights & Side Effects. Trial Name: NCT04626596 — Phase 3
Etonogestrel (ENG) Implant (Progestin-only Contraceptive) 2023 Treatment Timeline for Medical Study. Trial Name: NCT04626596 — Phase 3
Birth Control Patient Testimony for trial: Trial Name: NCT04626596 — Phase 3

Frequently Asked Questions

These questions and answers are submitted by anonymous patients, and have not been verified by our internal team.

Has the FDA green-lit ENG implant use for medical procedures?

"There is both efficacy and safety data from multiple rounds of clinical trials, so Radiopaque Etonogestrel (ENG) Implant received a score of 3."

Answered by AI

Could you please list other times that Radiopaque Etonogestrel (ENG) Implant has been studied?

"Radiopaque Etonogestrel (ENG) Implant was first studied in 2011 by VL Medi Oy. As of now, there have been 44 completed trials and 9 ongoing studies. A notable amount of research is being conducted out of Portland, Oregon."

Answered by AI

How is Radiopaque Etonogestrel (ENG) Implant typically employed?

"Radiopaque Etonogestrel (ENG) Implant is an effective contraceptive solution for patients of reproductive age experiencing contraception-related issues."

Answered by AI

What other similar research projects preceded this one?

"Radiopaque Etonogestrel (ENG) Implant has been under research since 2011 when the first clinical trial, sponsored by Merck Sharp & Dohme LLC, occurred. After this initial study with 90 participants in 2011, Phase 4 drug approval was received and now there are 9 active studies involving Radiopaque Etonogestrel (ENG) Implant across 59 cities and 5 countries."

Answered by AI

What goals does this scientific research hope to achieve?

"The primary outcome of this study is the number of participants who experience one or more adverse events during extended-duration use, which will be evaluated over a period of up to 24 months. Secondary objectives include the pregnancy rate (Pearl Index) for at-risk cycles during 5 years of implant use, as well as the mean length of bleeding and/or spotting episodes during extended-duration use, both of which will be assessed in 90-day reference periods."

Answered by AI

Who else is applying?

What state do they live in?
Colorado
California
Other
Texas
How old are they?
18 - 65
What site did they apply to?
Desert Star Family Planning ( Site 0193)
Matrix Clinical Research Inc ( Site 0105)
University of California Los Angeles ( Site 0119)
Other
What portion of applicants met pre-screening criteria?
Did not meet criteria
Met criteria
How many prior treatments have patients received?
0

What questions have other patients asked about this trial?

How long is a the study?
PatientReceived 1 prior treatment

Why did patients apply to this trial?

I’ve tried the iud and was forced to remove it due to pelvic pain. I’m hoping this contraception will help me.
PatientReceived no prior treatments
~81 spots leftby Dec 2024