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A study of FSN-013 in Japanese patients with endometriosis

A Multicenter, Randomized, Double-Blind, Placebo-Controlled, Parallel-Group Study to Evaluate the Efficacy and Safety of Cyclic Oral Administration of FSN-013 (E4/DRSP) in Japanese Patients With Endometriosis

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCT2011210027
Enrollment
150
Registered
2021-08-06
Start date
2021-08-02
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

endometriosis

Interventions

Each subject will receive one tablet of FSN-013(Estetrol Hydrate/Drospirenone) or Placebo orally once a day.

Sponsors

Takayanagi Toshiaki
Lead Sponsor

Eligibility

Sex/Gender
Female

Inclusion criteria

Inclusion criteria: 1.Diagnosed as endometriosis by laparotomy or laparoscopy 2.Diagnosed as endometriosis (having ovarian chocolate cysts) by TVUS or MRI 3.Patients clinically diagnosed as endometriosis with any of Douglas fossa induration or limited uterine mobility or pelvic tenderness by vaginal or rectal examination 4.Aged >= 20 years at the time of informed consent 5.BMI < 30 kg/m2

Exclusion criteria

Exclusion criteria: 1.Unconfirmed diagnosis of abnormal vaginal bleeding within 6 months before the screening tests 2.Aged >= 40 years with ovarian chocolate cysts for which the largest diameter was > 10 cm 3.Ovarian chocolate cysts containing solid components 4.Had undergone surgical treatment for endometriosis, adenomyosis and uterine fibroids by cyst puncture (such as transvaginal alcohol fixation), laparotomy or laparoscopy within 2 months before screening

Design outcomes

Primary

MeasureTime frame
The amount of change in the most severe pelvic pain (lower abdominal pain / back pain)

Contacts

Public ContactToshiaki Takayanagi

Fuji Pharma Co., Ltd.

clinical_trials@fujipharma.jp+81-3-3556-3344

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026