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NCT Number: NCT07697924

CURENDO (Cord-blood Uterine Regeneration Endometrium): Platelet-rich Plasma Therapy Derived From Umbilical Cord Blood for the Treatment of Endometrial Pathologies (Asherman Syndrome / Endometrial Atrophy / Thin Endometrium)

In recent years, platelet-rich plasma (PRP) has emerged as a promising alternative for treating endometrial pathologies that affect the endometrial lining. Several studies have tested this therapeutic approach in human patients, but the results are inconclusive. Moreover, in recent years, different investigations have suggested that PRP derived from umbilical cord blood (hUC-PRP) contains a higher concentration of growth factors and other pro-regenerative molecules than PRP obtained from adult peripheral blood. In our previous pilot study conducted in 15 patients with endometrial atrophy/Asherman syndrome/thin endometrium, preliminary results indicate that hysteroscopic injection of hUC-PRP increases endometrial thickness and improves the endometrial pattern. For this reason, the present study aims to corroborate our previous findings by increasing the number of patients to 35, in prior HRT cycles in these women, to gain a deeper understanding of the effectiveness of this new therapy.

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Key information

Conditions

Asherman Syndrome Female Urogenital Diseases Female Urogenital Diseases and Pregnancy Complications Genital Diseases Genital Diseases, Female Gynatresia Urogenital Diseases

Age range

18 year–48 year

Sex eligibility

Female

Study type

Interventional

Phase

Not applicable

Primary location

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • age between 18 and 48 years at the time of recruitment
  • body mass index (BMI): ≥ 18 kg/m2 and ≤ 35 kg/m2
  • endometrial thickness < 5 mm despite estrogen administration according to each clinic's routine practice for 10 or more days and/or evidence of Asherman syndrome.

Exclusion criteria

  • Active genital infection at the time of recruitment
  • chronic endometritis
  • known endometrial pathology
  • psychiatric disorder that could hinder study follow-up
  • positive results on viral safety testing (HBsAg, HBcAb, HCV, HIV-1, HIV-2, syphilis)
  • presence of any syndrome or condition that, in the opinion of the principal investigator, could pose a risk to the study or to the patient
  • any clinically significant abnormality detected during the recruitment process
  • simultaneous participation in another clinical study that could affect the objectives of the present study, or prior participation in this same study.

Treatment and study plan

Umbilical cord platelet-rich plasma (hUC-PRP)

Other

Umbilical cord platelet-rich plasma (hUC-PRP) obtained from samples sourced from a cord blood bank, which will be activated with 5% CaCl₂ prior to injection into the subendometrial wall of the uterine cavity via hysteroscopy. All patients will receive a single administration of allogeneic hUC-PRP after 10±2 days of estrogen treatment during the treatment phase.

Primary outcomes

  1. Increase in endometrial thickness following treatment with hUC-PRP, calculated as the difference between the endometrial thickness after treatment and the patient's initial endometrial thickness (mm).

    Time frame: 8 weeks

    If more than one endometrial thickness measurement is recorded, the average of the measurements will be calculated.

Sponsors and collaborators

Lead sponsor

Fundación IVI

Other

Registry information

Acronym: CURENDO

Important dates

Study start
2025
Primary completion
2029
Study completion
2029
First posted
Jul 13, 2026
Registry last updated
Jul 13, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

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This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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