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PregnancyPhase 1NCT03343912

Estriol and Trimegestone Dose-response Trial With Single Dose Application of Vaginal Rings

A Phase 1 study testing Estriol 0.400 mg/day and Trimegestone 0.06 mg/day, Estriol 0.300 mg/day and Trimegestone 0.12 mg/day and Estriol 0.200 mg/day and Trimegestone 0.18 mg/day in people with Pregnancy, run by Galeno Desenvolvimento de Pesquisas Clínicas at 1 site in Brazil.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This clinical trial is performed as proof of pharmacological action investigation by demonstration of ovulation inhibition (dose-response study) under treatment with three Test vaginal rings releasing varying doses of estriol (E3) and trimegestone (TMG). Read more about this study

Who is it for?
Ages 18 to 35 years, women onlyHealthy volunteers can take part
Conditions the study is for
Pregnancy
What is being tested?
Estriol 0.400 mg/day and Trimegestone 0.06 mg/day, Estriol 0.300 mg/day and Trimegestone 0.12 mg/day and Estriol 0.200 mg/day and Trimegestone 0.18 mg/day
Could I receive a placebo?
No, everyone receives an active treatment
How many people
36 participants
Where
1 siteBrazil
Study dates
10 Nov 2017to 15 Feb 2018
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 35 years
  • Women only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Under treatment with a commercially available combined oral contraceptive containing 30 µg ethinylestradiol (EE) and 150 µg levonorgestrel (LVN) for the last 3 months prior to enrolment
  • Body-mass index (BMI): ≥ 18.5 kg/m² and ≤ 30.0 kg/m²
  • Good state of health
  • Non-smoker, ex-smoker for at least 3 months
  • Regular menstrual cycle with a length between 21 and 35 days
  • Written informed consent, after having been informed about benefits and potential risks of the clinical trial

Who cannot join

  • Existing diseases or pathological findings, which might interfere with the safety or tolerability, and/or pharmacokinetics of the IMPs
  • Subjects with severe allergies or multiple drug allergies
  • Positive anti human immunodeficiency virus (anti-HIV) test, hepatitis B surface antigen (HBs-AG) test or anti hepatitis C virus (anti-HCV) test
  • Presence or history of venous or arterial thrombosis, cerebrovascular accident, or increased risk of thrombosis
  • Diabetes mellitus
  • Unclarified vaginal bleeding or frequent infections of the urogenital tract
Show all 13Show fewer
  • Severe or chronic constipation
  • Presence or history of migraine
  • Drug or alcohol dependence
  • Blood donation or other blood loss of more than 400 ml within the last 3 months
  • Participation in a clinical trial during the last 6 months
  • Pregnant or lactating women
  • Subjects who do not agree to apply a barrier method for contraception

Trial locations and contacts

1 site in 1 country.

Brazil1 site
  • Galeno Desenvolvimento de Pesquisas Clinicas Ltda. - ME

    Campinas, São Paulo

Other trials in Brazil

About this study

Official title: Dose-response Study With Three Vaginal Rings With Different Doses of Estriol and Trimegestone: Effect on Progesterone and Estradiol Levels in Healthy Females With Childbearing Potential

This clinical trial is performed as proof of pharmacological action investigation by demonstration of ovulation inhibition (dose-response study) under treatment with three Test vaginal rings releasing varying doses of estriol (E3) and trimegestone (TMG).

Blood samples for determination of estradiol (E2) and progesterone (PG) levels will serve as pharmacodynamic surrogate parameters for characterization of the treatment effect on the endogenous hormones.

Read more

Blood samples for determination of E3 and TMG in plasma will be collected in order to characterize pharmacokinetic parameters.

Additionally, local tolerability characterized by gynecological inspection of the vaginal mucosa prior to and after insertion of the Investigational Medicinal Product (IMPs) is planned to be assessed

Read the detailed description

The IMPs, releasing either 0.400 mg E3 and 0.06 mg TMG, or 0.300 mg E3 and 0.12 mg TMG, or 0.200 mg E3 and 0.18 mg TMG per 24 h, will be applied intravaginally and remain in the vagina for the subsequent 21 days (single dose, 1 treatment cycle). A total of 36 female subjects, 12 per treatment group, are intended to be randomized.

Blood samples for determination of E2 and PG levels will be collected during treatment and until 20 days after removal of the ring. Blood samples for determination of E3 and TMG in plasma will be collected over the treatment period and until 48 h after removal of the ring.

Bleeding intensity will also be documented during treatment and until 20 days after removal of the vaginal ring in a diary to characterize the effects of the different treatments.

Conditions
Pregnancy
Being tested
Estriol 0.400 mg/day and Trimegestone 0.06 mg/day, Estriol 0.300 mg/day and Trimegestone 0.12 mg/day, Estriol 0.200 mg/day and Trimegestone 0.18 mg/day
Keywords
Estriol, Trimegestone, Vaginal Ring

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Estriol 0.400 mg/day and Trimegestone 0.06 mg/dayDrug

    Vaginal ring with a nominal delivery rate of 0.400 mg/d estriol (E3) and 0.06 mg/d trimegestone (TMG), vaginal application

  • Estriol 0.300 mg/day and Trimegestone 0.12 mg/dayDrug

    Vaginal ring with a nominal delivery rate of 0.300 mg/d estriol (E3) and 0.12 mg/d trimegestone (TMG), vaginal application

  • Estriol 0.200 mg/day and Trimegestone 0.18 mg/dayDrug

    Vaginal ring with a nominal delivery rate of 0.200 mg/d estriol (E3) and 0.18 mg/d trimegestone (TMG), vaginal application

Study groups in NCT03343912
Study groupRoleWhat they receive
Test 1 vaginal ringExperimentalSingle intravaginal application of 1 vaginal ring of Estriol 0.400 mg/day and Trimegestone 0.06 mg/day (Test 1) over 21 days
Receives: Drug: Estriol 0.400 mg/day and Trimegestone 0.06 mg/day
Test 2 vaginal ringExperimentalSingle intravaginal application of 1 vaginal ring of Estriol 0.300 mg/day and Trimegestone 0.12 mg/day (Test 2) over 21 days
Receives: Drug: Estriol 0.300 mg/day and Trimegestone 0.12 mg/day
Test 3 vaginal ringExperimentalSingle intravaginal application of 1 vaginal ring of Estriol 0.200 mg/day and Trimegestone 0.18 mg/day (Test 3) over 21 days
Receives: Drug: Estriol 0.200 mg/day and Trimegestone 0.18 mg/day

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Measurement of E2 and PG plasma levels

    Blood sampling for the determination of plasma levels of E2 and PG, in participants of each treatment group, as surrogate variables for treatment response.

    Measured: 0 - 41 days

  2. Measurement of E3 and TMG plasma levels

    Blood sampling for the determination of plasma levels of E3 and TMG, in participants of each treatment group.

    Measured: 0 - 23 days

Secondary outcomes (4)
  1. Bleeding intensity

    Bleeding intensity, graded as "no bleeding", "spotting" or "bleeding" as recorded in diary by the subject on a daily basis

    Measured: start of treatment until 42 days after treatment

  2. Number of adverse events per participant

    Number of adverse events, in each treatment group, including clinically relevant alterations of vital signs and laboratory tests results

    Measured: up to 42 days after treatment

  3. Maximum Plasma Concentration (Cmax) of E3 and TMG

    Determination of Cmax for E3 and for TMG, based on plasma concentrations of samples obtained.

    Measured: 0 - 23 days

  4. Area Under the Curve (AUC) for E3 and TMG

    Calculation of the AUC for E3 and for TMG, based on plasma concentrations of samples obtained

    Measured: 0 - 23 days

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted17 Nov 2017
  2. Study start10 Nov 2017
  3. Primary completion12 Jan 2018
  4. Study completion15 Feb 2018

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Model description
Single centre, open-label, randomized (assignment to treatment group), parallel-group, three-arm single-dose clinical trial with application performed over 1 treatment cycle of 21 days.
Masking
None (open label)
Enrolment
36 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03343912
Sponsor's protocol ID
GDN 012/17
Status last verified
May 2020
First submitted
7 Nov 2017
Last updated
7 May 2020
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Estriol 0.400 mg/day and Trimegestone 0.06 mg/day, Estriol 0.300 mg/day and Trimegestone 0.12 mg/day and Estriol 0.200 mg/day and Trimegestone 0.18 mg/day in people with Pregnancy, run by Galeno Desenvolvimento de Pesquisas Clínicas at 1 site in Brazil.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 13 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 7 May 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Brazil. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Measurement of E2 and PG plasma levels (time frame: 0 - 41 days). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 7 May 2020.

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Clinical Trial NCT03343912 | AzTrials