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InfertilityPhase 2IMPLANTNCT02310802

OBE001 Phase 2 Dose-finding Study Versus Placebo in Women Undergoing Embryo Transfer in the Context of IVF-ICSI

A Phase 2 study testing OBE001 dose 1, OBE001 dose 2 and OBE001 dose 3 in people with Infertility, run by ObsEva SA at 18 sites in 6 countries.

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

The primary objective of this study is to assess the increase in clinical pregnancy rate after administration of a range of single oral doses of OBE001, an oral oxytocin antagonist, compared to placebo. Read more about this study

Who is it for?
Ages 18 to 36 years, women only
Conditions the study is for
Infertility
What is being tested?
OBE001 dose 1, OBE001 dose 2 and OBE001 dose 3
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
247 participants
Where
18 sitesin 6 countries
Study dates
Nov 2014to Dec 2016
Phase
Phase 2
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 36 years
  • Women only
  • No healthy volunteers
  • Adult

Who may be able to join

  • Women with medically indicated IVF or ICSI using her own oocytes.
  • GnRH antagonist protocol, a single injection of hCG for triggering final follicular maturation and luteal phase support with vaginal micronized progesterone.
  • Evidence of uterine contractions by transvaginal ultrasound at baseline.

Who cannot join

  • Blastocyst stage or frozen-thaw transfers
  • Clinically significant abnormalities in ECG, vital signs, physical examination or clinical laboratory results
  • Severe endometriosis and/or adenomyosis or risk of ovarian hyper stimulation syndrome

Trial locations and contacts

18 sites in 6 countries.

18 sites in 6 countries

Spain6 sites
  • Study site

    Alicante

  • Study site

    Barakaldo

  • Study site

    Barcelona

  • Study site

    Bilbao

  • Study site

    Seville

  • Study site

    Vigo

Other trials in Spain

Czechia4 sites
  • Study site

    Hradev Kralove

  • Study site

    Olomouc

  • Study site

    Prague

  • Study site

    Zlín

Other trials in Czechia

Poland4 sites
  • Study site

    Bialystok

  • Study site

    Katowice

  • Study site

    Szczecin

  • Study site

    Warsaw

Other trials in Poland

Denmark2 sites
  • Study site

    Copenhagen

  • Study site

    Hvidovre

Other trials in Denmark

Belgium1 site
  • Study site

    Brussels

Other trials in Belgium

United Kingdom1 site
  • Study site

    London

Other trials in United Kingdom

About this study

Official title: A Phase 2, Double-blind, Dose-finding, Placebo-controlled Study to Assess the Safety and Efficacy of a Single Oral Administration of OBE001 to Improve Embryo Implantation Following IVF or ICSI

The primary objective of this study is to assess the increase in clinical pregnancy rate after administration of a range of single oral doses of OBE001, an oral oxytocin antagonist, compared to placebo.

Read the detailed description

The study is a prospective, dose-finding, randomised, parallel group, double-blind, placebo-controlled study investigating the efficacy and the safety of the oxytocin receptor antagonist OBE001 in 240 women undergoing embryo transfer following IVF or ICSI.

The four-arm study (OBE001 dose 1, dose 2, dose 3, and placebo) design will allow evaluation of a possible dose-dependent pattern of action of OBE001 and, simultaneously, comparison of active compound with placebo with regard to both efficacy and safety.

Conditions
Infertility
Being tested
OBE001 dose 1, OBE001 dose 2, OBE001 dose 3, Placebo
Keywords
IVF, ICSI
Medical subject headings
Infertility

What participants receive

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

  • OBE001 dose 1Drug

    OBE001 dispersible tablets for single oral administration

  • OBE001 dose 2Drug

    OBE001 dispersible tablets for single oral administration

  • OBE001 dose 3Drug

    OBE001 dispersible tablets for single oral administration

  • PlaceboDrug

    Placebo dispersible tablets for single oral administration

Study groups in NCT02310802
Study groupRoleWhat they receive
OBE001 dose 1ExperimentalNot described
Receives: Drug: OBE001 dose 1
OBE001 dose 2ExperimentalNot described
Receives: Drug: OBE001 dose 2
OBE001 dose 3ExperimentalNot described
Receives: Drug: OBE001 dose 3
PlaceboPlacebo comparatorNot described
Receives: Drug: Placebo

What is being measured

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

  1. EFFICACY ENDPOINTS Percentage of women with an intra-uterine pregnancy with positive embryo heart-beat

    Percentage of women with an intra-uterine pregnancy with positive embryo heart-beat at about 6 weeks post ET day.

    Measured: about 6 weeks post ET day

Secondary outcomes (4)
  1. EFFICACY ENDPOINTS Percentage of women with positive blood pregnancy test

    Percentage of women with positive blood pregnancy test at 14 days post OPU day.

    Measured: 14 days post OPU day

  2. EFFICACY ENDPOINTS Percentage of women with an intra-uterine pregnancy with positive embryo heart-beat

    Percentage of women with an intra-uterine pregnancy with positive embryo heart-beat at 10 weeks post OPU day.

    Measured: 10 weeks post OPU day

  3. EFFICACY ENDPOINTS The embryo-implantation rate

    The embryo-implantation rate defined as the number of intra-uterine embryos with positive heart-beat at 6 weeks post ET day divided by the number of embryos transferred

    Measured: 6 weeks post ET day

  4. EFFICACY ENDPOINTS Change from baseline to the time of ET in the rate of uterine contractions

    Change from baseline to the time of ET in the rate of uterine contractions (UC/min).

    Measured: at 3.5 hours after dose administration

Timeline

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

  1. First posted8 Dec 2014 (estimated)
  2. Study startNov 2014
  3. Primary completionNov 2015
  4. Study completionDec 2016

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 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
247 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02310802
Sponsor's protocol ID
14-OBE001-013
Acronym
IMPLANT
Status last verified
Oct 2017
First submitted
19 Nov 2014
Last updated
23 Oct 2017
Results posted
No
Data monitoring committee
Yes

Publications

  • Griesinger G, Blockeel C, Pierzynski P, Tournaye H, Visnova H, Humberstone A, Terrill P, Pohl O, Garner E, Donnez J, Loumaye E. Effect of the oxytocin receptor antagonist nolasiban on pregnancy rates in women undergoing embryo transfer following IVF: analysis of three randomised clinical trials. Hum Reprod. 2021 Mar 18;36(4):1007-1020. doi: 10.1093/humrep/deaa369.

    PubMed 33534895

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing OBE001 dose 1, OBE001 dose 2 and OBE001 dose 3 in people with Infertility, run by ObsEva SA at 18 sites in 6 countries.

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 3 inclusion and 3 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 23 Oct 2017. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 18 sites in Spain, Czechia, Poland, Denmark, Belgium and 1 more country. 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. Some participants in this study may receive a placebo. 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 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

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?

EFFICACY ENDPOINTS Percentage of women with an intra-uterine pregnancy with positive embryo heart-beat (time frame: about 6 weeks post ET day). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02310802, which also lists 1 linked publication.

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 23 Oct 2017.

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