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ART-Pterostilbene

A randomized, double-blind, controlled study of pterostilbene in aging infertile patients to improve the quality of oocytes.

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCTs031220638
Enrollment
520
Registered
2023-02-14
Start date
2023-10-22
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

Infertility infertility

Interventions

Pterostilbene or placebo is administered daily for a period of 6 to 10 weeks (1 capsule/tablet twice daily after breakfast and dinner) starting 1 week before the start of menstruation.

Sponsors

Kawamura Kazuhiro
Lead Sponsor

Eligibility

Sex/Gender
Female

Inclusion criteria

Inclusion criteria: (1) Infertile female patients undergoing in vitro fertilization. (2) Patients aged 40 years or older at the time of informed consent . (3) Patients attending the outpatient clinic of a collaborating study site. (4) Patients who have the ability to consent and are able to obtain written consent by their own volition. (5) Patients judged by the investigator (co-investigator) to be able to appropriately evaluate the efficacy and safety of this study with considering the inclusion and exclusion criteria.

Exclusion criteria

Exclusion criteria: (1) Patients taking supplements other than vitamins, minerals, and beta-carotene within one menstrual cycle prior to randomization. (2) Patients where the possible causes of infertility include diabetes mellitus, polycystic ovary, or a partner with severe spermatogenic dysfunction. (3) Patients who have received reproductively toxic chemotherapy or radiotherapy. (4) Patients with recurrent implantation failure. (5) Unmarried patients who wish to freeze their eggs. (6) Patients who have participated in this study in the past. (7) Patients with an allergy to resveratrols and dextrin (starch). (8) Patients with a menstrual cycle of 3 weeks or less or 5 weeks or more. (9)Patients who are considered inappropriate for participation in the study by the investigator or subinvestigator.

Design outcomes

Primary

MeasureTime frame
Percentage of embryos reaching the blastocyst stage on Day 5 after fertilization (number of blastocysts/ number of normal fertilized oocytes)

Secondary

MeasureTime frame
Oocyte maturation rate (number of mature oocytes/number of retrieved oocytes) Fertilization rate (number of normal fertilized oocytes/number of retrieved oocytes) Clinical pregnancy rate (frequency of detectable gestational sac under ultrasound analysis/frequency of embryo transfer) Miscarriage rate (frequency of miscarriage/frequency of embryo transfer) Pterostilbene concentration (blood and follicular fluid)

Contacts

Public ContactKazuhiro Kawamura

Juntendo University Hospital

kazuhironanami@gmail.com+81-3-3813-3111

Outcome results

None listed

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