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FATIMA Trial: EGCG and Vitamin D3 for Prevention of Fibroid Recurrence (FATIMA)

13. června 2026 aktualizováno: Ayman Al Hendy, Sheikh Shakhbout Medical City

FATIMA Trial: EGCG and Vitamin D3 for Secondary Prevention of Uterine Fibroids

The aim of this randomized controlled clinical trial is to evaluate the efficacy of green tea (EGCG) and vitamin D3 supplementation in preventing uterine fibroid recurrence following fibroid removal.

Přehled studie

Detailní popis

Uterine leiomyomas (fibroids) are the most common benign hormone-dependent tumors affecting approximately 50% to 70% of reproductive-age women. Although many fibroids remain asymptomatic, they may cause abnormal uterine bleeding, pelvic pain, anemia, and infertility. Myomectomy is an effective uterus-preserving surgical treatment; however, fibroid recurrence following surgery remains common, and there is currently no established medical strategy for recurrence prevention.

This randomized, double-blind, placebo-controlled clinical trial will evaluate the efficacy of Epigallocatechin gallate (EGCG) and vitamin D3 supplementation in preventing fibroid recurrence following myomectomy. EGCG and vitamin D3 have demonstrated antifibrotic, anti-inflammatory, and antiproliferative properties in preclinical and clinical studies and may represent a potential non-hormonal preventive approach.

Premenopausal women undergoing myomectomy for symptomatic uterine fibroids will be randomized into two groups in a 2:1 ratio to receive either (1) daily oral EGCG (300 mg) and vitamin D3 (2000 IU), or (2) placebo, in addition to standard post-surgical care. The intervention period will continue for 24 months following surgery.

The primary outcome is fibroid recurrence, assessed by transvaginal ultrasound during scheduled follow-up visits postoperatively. Secondary outcomes include fibroid volume, symptom recurrence, quality-of-life measures, and need for reintervention.

Follow-up assessments will include symptom evaluation, questionnaire completion, medication compliance assessment, concomitant medication review, adverse event monitoring, ultrasound evaluation, and predefined safety laboratory investigations according to the study schedule. Statistical analyses will evaluate recurrence rates and treatment efficacy between groups.

The results of this trial will provide evidence regarding the effectiveness of EGCG and vitamin D3 as a potential non-hormonal strategy for the prevention of uterine fibroid recurrence following myomectomy.

Typ studie

Intervenční

Zápis (Odhadovaný)

240

Fáze

  • Fáze 2

Kontakty a umístění

Tato část poskytuje kontaktní údaje pro ty, kteří studii provádějí, a informace o tom, kde se tato studie provádí.

Studijní kontakt

Studijní záloha kontaktů

  • Jméno: Leen Oyoun Alsoud, Master Pharmaceutical Sciences
  • Telefonní číslo: +971 800 7762
  • E-mail: 100066957@ku.ac.ae

Studijní místa

Kritéria účasti

Výzkumníci hledají lidi, kteří odpovídají určitému popisu, kterému se říká kritéria způsobilosti. Některé příklady těchto kritérií jsou celkový zdravotní stav osoby nebo předchozí léčba.

Kritéria způsobilosti

Věk způsobilý ke studiu

  • Dospělý
  • Starší dospělý

Přijímá zdravé dobrovolníky

Ne

Popis

Inclusion criteria:

Inclusion Criteria (all inclusion criteria must have been met before randomization unless otherwise specified and exceptions to inclusion criteria may be made at the discretion of the Principal Investigator, provided they are justified and ensure no compromise to the study's scientific integrity or participant safety):

Inclusion Criteria:

  1. Has voluntarily signed and dated the informed consent form before initiation of any screening or study-specific procedures.
  2. Premenopausal females aged 18 years and older on the day of signing of the informed consent form.
  3. Has a diagnosis of uterine fibroids that is confirmed by a pelvic ultrasound (transvaginal and/or transabdominal) performed during the screening period.
  4. Has at least one or more of the following symptoms:

    1. Moderate to heavy menses defined as PBAC score ≥ 120
    2. Pelvic pain during menses measured on NRS ≥ 4 at baseline
    3. Moderately severe fibroid-related symptoms (a score ³ 25 on the UF quality of life symptoms severity subscale).
  5. Has a negative urine pregnancy test at the Screening, Baseline, and interval clinic visits
  6. Agrees to not be pregnant for at least 12 months. Participants may use any form of non-hormonal contraception consistently during the screening period and the randomized treatment period. These may include Diaphragm, cervical cap, spermicides, male and female condoms, copper IUD and sponge. Each one will be explained in detail for the participants. However, the patient is not required to use contraception if she:

    1. Has a sexual partner(s) who was vasectomized at least 6 months before the screening period.
    2. Had a bilateral tubal occlusion (including ligation and blockage methods such as Essure™), at least 4 months prior to the first screening visit (patients with Essure™ must have prior confirmation of tubal occlusion by hysterosalpingogram).
    3. Is not sexually active with men; periodic sexual relationship(s) with men requires the use of dual non-hormonal contraception as noted above; or
    4. Practices total abstinence from sexual intercourse as her preferred lifestyle; periodic abstinence is not acceptable.
  7. Has an endometrial (aspiration) biopsy, if clinically indicated, performed during the screening period, with results showing no clinically significant endometrial pathology (hyperplasia, endometritis, or endometrial cancer).

Exclusion Criteria:

  1. Participants with documented vitamin D deficiency (based on previous serum vitamin D level within prior 12 months).
  2. Has transvaginal and/or transabdominal ultrasound during the screening period demonstrating pathology other than uterine fibroids that could be responsible for or contributing to the patient's heavy menstrual bleeding, such as uterine or cervical polyps > 2.0 cm, or any other clinically significant gynecological disorder determined by the investigator to require further evaluation and/or treatment.
  3. Has unexplained vaginal bleeding outside of the patient's regular menstrual cycle.
  4. Has undergone ultrasound-guided laparoscopic radiofrequency ablation, or any other surgical procedure for fibroids, uterine artery embolization, magnetic resonance-guided focused ultrasound for fibroids, as well as endometrial ablation for abnormal uterine bleeding within 6 months prior to the screening visit.
  5. Has a history of or currently has osteoporosis, or other metabolic bone disease, hyperparathyroidism, hyperprolactinemia, hyperthyroidism, anorexia nervosa, or low traumatic (from the standing position) or atraumatic fracture (toe, finger, skull, face, and ankle fractures are allowed). A history of successfully treated hyperparathyroidism, hyperprolactinemia, or hyperthyroidism is allowed if the patient's bone mineral density is within normal limits.
  6. Has a history of the use of bisphosphonates, calcitonin, calcitriol, ipriflavone, teriparatide, denosumab, or any medication other than calcium and vitamin D preparations to treat bone mineral density loss
  7. Anticipated use of systemic glucocorticoids at an oral prednisone-equivalent dose of more than 5 mg every other day during the study. Note: topical, inhaled, intranasal, optic, ophthalmic, intraarticular, or intralesional subcutaneous are permitted without restriction.
  8. Gastrointestinal disorder affecting absorption or gastrointestinal motility
  9. Has jaundice or known current active liver disease from any cause, including hepatitis A (HAV IgM), hepatitis B (HBsAg), or hepatitis C (HCV Ab positive, confirmed by HCV RNA).
  10. Has any of the following cervical pathology: high-grade cervical neoplasia, atypical glandular cells, atypical endocervical cells, atypical squamous cells favoring high grade. Of note, patients with atypical squamous cells of undetermined significance and low-grade cervical neoplasia may be included in the study if high-risk human papillomavirus testing is negative or if DNA testing for human papillomavirus 16 and 18 DNA testing is negative
  11. Has any history of clinical laboratory abnormalities indicating hepatic or gallbladder impairment.
  12. Has been a participant in an investigational drug or device study within the 1 month prior to the screening visit.
  13. Has a history of clinically significant condition(s) including, but not limited to:

    1. Untreated thyroid dysfunction or palpable thyroid abnormality (patients with adequately treated hypothyroidism who are stable on medication are not excluded).
    2. History of malignancy within the past 5 years or ongoing malignancy other than curatively treated nonmelanoma skin cancer or surgically cured Stage 0 in situ melanoma.
  14. Any current psychiatric disorder that would, in the opinion of the investigator or medical monitor, impair the ability of the patient to participate in the study or would impair the interpretation of their data. Patients with major depression, post-traumatic stress disorder, bipolar disorder, schizophrenia, or other psychotic disorders, based on Diagnostic and Statistical Manual of Mental Disorders-5 criteria who have been unstable based on the investigator's or mental health professional's judgement or whose psychiatric drug regimen has changed during the 3 months prior to Screening or is expected to change during the study should not be enrolled. Has a contraindication or history of sensitivity to any of the study treatments or components thereof; or has a history of drug or other allergy that, in the opinion of the investigator or medical monitor, contraindicates study participation.
  15. Has a prior (within 1 year of Screening 1 visit) or current history of drug or alcohol abuse disorder according to Diagnostic and Statistical Manual of Mental Disorders V (all patients must be questioned about their drug and alcohol use, and this should be documented in the electronic case report form).
  16. Has participated in a previous clinical study that included the use of Green tea or Vitamin D3 or has received this treatment within 3 months of the study.
  17. Is inappropriate for participation in this study for other reasons, as determined by the investigator, sub-investigator, or medical monitor.

Studijní plán

Tato část poskytuje podrobnosti o studijním plánu, včetně toho, jak je studie navržena a co studie měří.

Jak je studie koncipována?

Detaily designu

  • Primární účel: Prevence
  • Přidělení: Randomizované
  • Intervenční model: Paralelní přiřazení
  • Maskování: Čtyřnásobek

Zbraně a zásahy

Skupina účastníků / Arm
Intervence / Léčba
Experimentální: Investigational arm
Treatment with EGCG and vitamin D3 tablets for up to 2 years following surgical myomectomy. Each tablet contains 150 mg EGCG and 1000 IU vitamin D3, and participants will take one tablet twice daily, providing a total daily dose of 300 mg EGCG and 2000 IU vitamin D3 (n=160).
EGCG and Vitamin D3 (300 mg, 2000 IU respectively, in tablets Each tablet will contain 150 mg EGCG, 1000 IU Vitamin D
Komparátor placeba: Placebo arm
Treatment with placebo after surgical myomectomy (n=80).
The placebo has no medication and the participant will receive standard of care.

Co je měření studie?

Primární výstupní opatření

Měření výsledku
Popis opatření
Časové okno
Fibroid Recurrence
Časové okno: 2 years

The primary outcome is:

Fibroid recurrence when compared to the post-myomectomy baseline pelvic ultrasound (transvaginal and/or transabdominal), defined as a new fibroid identified on ultrasound with volume >1 cm3.

2 years

Sekundární výstupní opatření

Měření výsledku
Popis opatření
Časové okno
Return of moderate to heavy menses
Časové okno: 2 years

Return of moderate to heavy menses defined as PBAC score ≥ 120 for patients with pre-operative moderate to heavy menses.

PBAC stands for Pictorial Blood Loss Assessment Chart. In this chart, there is no unit. In this Chart, the higher the number, the heavier the menses.

2 years
Need for reintervention
Časové okno: 2 years

Need for reintervention defined as the need to undergo a procedure or surgery for treatment of uterine fibroids including repeat myomectomy, uterine fibroid embolization, and radiofrequency ablation.

In this outcome, we will examine the participant info at each evaluation visit to capture the data if she has undergone any anti-fibroid procedure or surgery. The captured data will be: "Yes" or "No".

2 years
Time to event
Časové okno: 2 years
Time to event (procedure or surgery) such as radiofrequency ablation (RFA), myomectomy, hysterectomy, or uterine fibroid embolization (UFE). The unit for this outcome is "weeks". In this outcome, we will examine the patient info at each evaluation visit to calculate the number of "weeks" it took a participant to need to undergo an anti-fibroid procedure or surgery.
2 years
Symptom recurrence
Časové okno: 2 years

Symptom recurrence according to the Uterine fibroid quality of life symptoms severity subscale.

There is no unit for this outcome. Higher score values are indicative of greater symptom severity and lower scores will indicate minimal symptom severity.

2 years
Return of pelvic pain
Časové okno: 2 years

Return of pelvic pain during menses as measured on the validated Numerical Rating Scale.

There is no unit for this outcome. Higher scores will be indicative of greater pain.

2 years
Uterine Fibroid-related Quality of life
Časové okno: 2 years

Quality of life as measured by Patient Reported Outcome and validated Quality of life questionnaire (UFS-QOL stands for Uterine Fibroid Symptoms-Quality of Life).

There is no unit for this outcome. Higher scores will be indicative of better quality of life.

2 years

Spolupracovníci a vyšetřovatelé

Zde najdete lidi a organizace zapojené do této studie.

Vyšetřovatelé

  • Vrchní vyšetřovatel: Ayman Al Hendy, M.D. Ph.D., Sheikh Shakbhout Medical City
  • Vrchní vyšetřovatel: Basel Imam, M.D., Sheikh Shakbhout Medical City

Publikace a užitečné odkazy

Osoba odpovědná za zadávání informací o studiu tyto publikace poskytuje dobrovolně. Mohou se týkat čehokoli, co souvisí se studiem.

Obecné publikace

Termíny studijních záznamů

Tato data sledují průběh záznamů studie a předkládání souhrnných výsledků na ClinicalTrials.gov. Záznamy ze studií a hlášené výsledky jsou před zveřejněním na veřejné webové stránce přezkoumány Národní lékařskou knihovnou (NLM), aby se ujistily, že splňují specifické standardy kontroly kvality.

Hlavní termíny studia

Začátek studia (Odhadovaný)

22. srpna 2026

Primární dokončení (Odhadovaný)

22. srpna 2029

Dokončení studie (Odhadovaný)

22. prosince 2029

Termíny zápisu do studia

První předloženo

2. června 2026

První předloženo, které splnilo kritéria kontroly kvality

10. června 2026

První zveřejněno (Aktuální)

15. června 2026

Aktualizace studijních záznamů

Poslední zveřejněná aktualizace (Aktuální)

16. června 2026

Odeslaná poslední aktualizace, která splnila kritéria kontroly kvality

13. června 2026

Naposledy ověřeno

1. června 2026

Více informací

Termíny související s touto studií

Plán pro data jednotlivých účastníků (IPD)

Plánujete sdílet data jednotlivých účastníků (IPD)?

NE

Popis plánu IPD

The Principal Investigator and study staff will ensure that the subject's privacy will be strictly maintained and that their identities are protected from unauthorized parties. This will be accomplished by securing all study documents and subject information. These files will be accessible to study staff only and maintained in a secure study office. The study staff will assign a code (numbers and/or letters) to the subject for data analysis. Documents that contain identifiers will be kept in a locked research office and/or stored within computers with password protection and encryption. We will safeguard patients' expectation that the information they offer will be held in confidence. We will protect each participant's information as prescribed by the University and Hospital policy.

Informace o lécích a zařízeních, studijní dokumenty

Studuje lékový produkt regulovaný americkým FDA

Ne

Studuje produkt zařízení regulovaný americkým úřadem FDA

Ne

produkt vyrobený a vyvážený z USA

Ne

Tyto informace byly beze změn načteny přímo z webu clinicaltrials.gov. Máte-li jakékoli požadavky na změnu, odstranění nebo aktualizaci podrobností studie, kontaktujte prosím register@clinicaltrials.gov. Jakmile bude změna implementována na clinicaltrials.gov, bude automaticky aktualizována i na našem webu .

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