ClinicalTrials.gg
TerminatedNCT03476928ASTEROID 8Updated Jul 8, 2022

A Study to Assess the Safety and Efficacy of Vilaprisan in Japanese Subjects With Uterine Fibroids and Heavy Menstrual Bleeding

A Phase 3 interventional study of Vilaprisan (BAY1002670) in Uterine Fibroids and Heavy Menstrual Bleeding, sponsored by Bayer. Terminated at 25 sites in Japan. Open to female participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2022-07-08.

Sponsored by Bayer · Phase 3, Interventional, and Treatment

Why this study was terminated
Due to a change in the development program, the study was closed prematurely.
Phase
Phase 3
Study type
Interventional
Enrollment
153
Allocation
Randomized
Ages
18 Years and older
Sex
Female
01

Where this study stands

Counted across the records on this site · 2026-11-13

Among 12 studies testing vilaprisan in Leiomyoma — none open to participants now, none under way, none of them phase 3. vilaprisan · Leiomyoma.

Enrollment
4th of 12
153 · median 98
Started
2018
with 4 others
Phase 3
6 of 12
none open now
Registered
11th of 12
by date
Lead sponsor
12 of 12
Bayer

Among the 12 studies testing vilaprisan in Leiomyoma, this one is the 4th largest by enrollment, is one of 5 that started in 2018, is one of 6 in phase 3, and was the 11th registered.

Leiomyoma

438 studies on the registry are indexed under Leiomyoma; 74 are open to participants now.

Browse Leiomyoma studies →

Open to participants now

None of the 12 studies testing vilaprisan in Leiomyoma is open now. The open studies under Leiomyoma, anywhere →

About vilaprisan

No approval found in the FDA or EMA files read. How studies give it is on its page →

Who these studies take

Of the 43 Leiomyoma studies recruiting now, 21 (49%) set no upper age limit and 21 (49%) stop at 75 or younger; 3 take children under 18; 9 take healthy volunteers.

This study: 18 Years and older · female · no healthy volunteers.

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Download CSVNarrow it in search →With an account: the 12 studies testing vilaprisan in Leiomyoma as a file.
02

Study summary

To evaluate the safety and efficacy of vilaprisan in Japanese subjects with uterine fibroids and heavy menstrual bleeding (HMB).

03

Conditions studied

  • Uterine Fibroids and Heavy Menstrual Bleeding
04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
Female
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • 18 years or older
  • Diagnosis of uterine fibroid(s) documented by ultrasound at screening
  • Heavy menstrual bleeding (HMB) >80.00 mL associated with uterine fibroid(s)
  • Good general health
  • Normal or clinically insignificant cervical smear
  • An endometrial performed during the screening period, without significant histological disorder
  • Use of an acceptable nonhormonal method of starting at Visit 1 until the end of the study

Exclusion criteria

Exclusion Criteria:

  • Pregnancy or lactation (less than 3 months since delivery, abortion, or lactation before start of treatment)
  • to any ingredient of the study drug
  • Any condition requiring immediate blood transfusion
  • Any diseases, conditions, or medications that can compromise the function of the body systems and could result in altered absorption, excessive accumulation, impaired metabolism, or altered excretion of the study drug
  • Any diseases or conditions that might interfere with the conduct of the study or the interpretation of the results
  • Abuse of alcohol, drugs, or medicines (e.g., laxatives)
  • Use of other treatments that might interfere with the conduct of the study or the interpretation of the results
  • Undiagnosed abnormal genital bleeding
Terms in these criteria, in plain language(3)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Biopsy and archival tissue

A biopsy takes a small piece of tissue to examine. “Archival tissue” is a sample already taken, for example at diagnosis, and kept by the hospital.

Whether a stored sample will do depends on when it was taken, how much there is and what the study needs. Ask whether the study accepts your stored sample or needs a new biopsy.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
153 participants (actual)

Study arms

  • Experimental
    Treatment Group A1

    4 treatment periods of 12 weeks, each separated by 1 bleeding episode

    Drug: Vilaprisan (BAY1002670)

  • Experimental
    Treatment Group A2

    2 treatment periods of 24 weeks, separated by 2 bleeding episodes

    Drug: Vilaprisan (BAY1002670)

Interventions

06

What researchers measure

Primary outcomes

  1. Incidence of treatment-emergent adverse event

    Time frame: Up to one year and 3 months

Secondary outcomes

  1. Number of bleeding days

    Time frame: Up to one year and 3 months

07

Study locations

25 sites
  • Meitetsu Hospital
    Nagoya, Aichi 451-8511, Japan
  • Kano's Clinic for Women
    Nagoya, Aichi 460-0011, Japan
  • Kyoritsu Narashinodai Hospital
    Funabashi, Chiba 274-0063, Japan
  • Aso Iizuka Hospital
    Iizuka, Fukuoka 820-8505, Japan
  • Jusendo Geneal Hospital Yuasa Foundation
    Koriyama, Fukushima 963-8585, Japan
  • Sato Hospital
    Takasaki, Gunma 370-0836, Japan
  • Hashimoto Clinic
    Sapporo, Hokkaido 004-0052, Japan
  • Yoshio Clinic
    Sapporo, Hokkaido 064-0808, Japan
  • Asahi-Clinic.
    Takamatsu, Kagawa 760-0076, Japan
  • Kurashiki Medical Clinic
    Kurashiki, Okayama 710-0824, Japan
  • Medical Topia Soka Hospital
    Soka, Saitama 340-0028, Japan
  • Sei Womens Clinic
    Bunkyo, Tokyo 112-0014, Japan
  • St.Luke's International Hospital
    Chuoku, Tokyo 104-8560, Japan
  • Akazawa Clinic
    Fuchu, Tokyo 183-0056, Japan
  • Yokokura Clinic
    Minato-ku, Tokyo 108-0014, Japan
  • Toranomon Womens Clinic
    Minato, Tokyo 105-0001, Japan
  • Akasakamitsuke Miyazaki Obstetrics and Gynecology Clinic
    Minato, Tokyo 107-0051, Japan
  • Tokyo Women's Medical University Hospital
    Shinjuku-ku, Tokyo 162-8666, Japan
  • Kato Internal medicine and Gynecology Clinic
    Fukui, 910-0845, Japan
  • Hamanomachi Hospital
    Fukuoka, 810-8539, Japan
  • Medical corporation keizukai Chayamachi Ladies Clinic
    Osaka, 530-0013, Japan
  • Medical Corporation Koshinkai Nomura Clinic Namba
    Osaka, 542-0076, Japan
  • Izuma Clinic
    Osaka, 543-0023, Japan
  • Shizuoka Saiseikai General Hospital
    Shizuoka, 422-8527, Japan
  • Toyama Prefectural Central Hospital
    Toyama, 930-8550, Japan
08

References and documents

Individual participant data

Plan to share: Undecided — Availability of this study's data will be determined according to Bayer's commitment to the EFPIA/PhRMA "Principles for responsible clinical trial data sharing". This pertains to scope, time point and process of data access. As such, Bayer commits to sharing upon request from qualified researchers patient-level clinical trial data, study-level clinical trial data, and protocols from clinical trials in patients for medicines and indications approved in the US and EU as necessary for conducting legitimate research. This applies to data on new medicines and indications that have been approved by the EU and US regulatory agencies on or after January 01, 2014. Interested researchers can use www.clinicalstudydatarequest.com to request access to anonymized patient-level data and supporting documents from clinical studies to conduct research. Information on the Bayer criteria for listing studies and other relevant information is provided in the Study sponsors section of the portal.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Mar 2018 to primary completion in Jul 2021, 39 months.

How these figures are worked out, and which studies are left out of them.

Registered
Mar 20, 2018
First posted
Mar 26, 2018
StartActual
Mar 30, 2018
Primary completionActual
Jul 12, 2021
CompletionActual
Jul 12, 2021
Last update
Jul 8, 2022
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jul 8, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03476928
Lead sponsor
Bayer
Responsible party
Sponsor
First posted
Mar 26, 2018
Start date
Mar 30, 2018
Primary completion
Jul 12, 2021
Completion
Jul 12, 2021
Last update
Jul 8, 2022

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is terminated, as verified in Jun 2022. You cannot join it, but the record below documents what was studied.

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Discussion

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Studies of the drug tested here: Vilaprisan

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