Ovulation and Follicular Development Associated With Mid Follicular Phase Initiation of Combined Hormonal Contraception

March 21, 2018 updated by: Preeyaporn Jirakittidul, Mahidol University

Ovulation and Follicular Development Associated With Mid Follicular Phase Initiation of Combined Hormonal Contraception Containing Estradiol Hemihydrate Compared to Ethinyl Estradiol

Quick starting combined oral contraception containing estradiol hemihydrate/nomegestrol acetate is effective to inhibit ovulation in healthy reproductive age women and non-inferiority to combined oral contraception containing ethinyl estradiol/gestodene.

Study Overview

Status

Completed

Intervention / Treatment

Detailed Description

This study is a randomized control, non-inferiority trial which compare the proportion of ovulation between two oral combined pills when delay starting the first tablet at mid-follicular phase of menstrual cycle in 18 - 40 year old, healthy women with prior normal and regular periods. Participations will be undergone trans-vaginal or trans-rectal ultrasonography between day 1 - 3 of menstrual period for evaluation of ovarian follicle/cyst (if present). Only women who have normal looking of ovaries without dominant ovarian follicle will be included in study-protocol. Immediately after trans-vaginal/trans-rectal ultrasound between day 7 - 9 of menstrual period, all participants will be randomly assigned to receive one pack of investigated pills (1.5 mg estradiol hemihydrate/2.5 mg nomegestrol acetate or 20 mcg ethinyl estradiol/75 mcg gestodene) and to take the first tablet under direct observation by research-nurse. Participants will take one consecutive tablet at about the same time each day until complete pack. The next appointments will be every 2 - 3 days to monitor ovarian function by using Hoogland score until ovulation or follicular quiescence will be presented. The last visit will be about 1 week after complete pack to monitor adverse effect and safety through out the protocol.

Study Type

Interventional

Enrollment (Actual)

69

Phase

  • Phase 4

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Bangkok
      • Bangkok Noi, Bangkok, Thailand, 10700
        • Siriraj Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 40 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Female

Description

Inclusion Criteria:

  • healthy women, age 18 - 40 years
  • prior normal and regular interval of menstruation

Exclusion Criteria:

  • current breast feeding women
  • within 1 month period of child-delivery or miscarriage
  • body mass index 30 kg/m2 or more
  • contraindicated to use combined hormonal contraception
  • current using other hormonal drugs that affect ovulation function

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Other
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Triple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Meliane ED
20 mcg ethinyl estradiol/70 mcg gestodene
quick start of combined hormonal contraception containing 20 mcg ethinyl estradiol /75 mcg gestodene
Other Names:
  • ethinyl estradiol combined pills
Experimental: Zoely
1.5 mg estradiol/2.5 mg nomegestrol acetate
quick start of combined hormonal contraception containing 1.5 mg estradiol /2.5 mg nomegestrol acetate
Other Names:
  • estradiol hemihydrate combined pills

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
ovulation inhibition
Time Frame: 1 month
comparison of ovulation inhibition effect between Zoely and Meliane ED with mid follicular phase starting
1 month

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
follicular development
Time Frame: through study completion, an average of 1 month
pattern of ovarian follicular change after receive intervention
through study completion, an average of 1 month

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

January 21, 2017

Primary Completion (Actual)

February 28, 2018

Study Completion (Actual)

February 28, 2018

Study Registration Dates

First Submitted

March 2, 2017

First Submitted That Met QC Criteria

March 7, 2017

First Posted (Actual)

March 13, 2017

Study Record Updates

Last Update Posted (Actual)

March 23, 2018

Last Update Submitted That Met QC Criteria

March 21, 2018

Last Verified

March 1, 2018

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

Undecided

IPD Plan Description

Undecided

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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