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Resept av Letrozol for uterin myom (PLUM)

5. oktober 2026 oppdatert av: University of California, San Francisco

Letrozol for behandling av uterine fibroider: en randomisert, placebokontrollert studie

The PLUM Study is a randomized, double-blinded, 2-arm, parallel-group, placebo-controlled trial is designed to compare the efficacy of letrozole versus placebo on leiomyoma-related symptoms and quality of life as well as leiomyoma and uterine size.

Studieoversikt

Status

Rekruttering

Forhold

Intervensjon / Behandling

Studietype

Intervensjonell

Registrering (Antatt)

140

Fase

  • Fase 4

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiekontakt

Studer Kontakt Backup

Studiesteder

  • Forente stater
    • California
      • Los Angeles, California, Forente stater, 90095
        • Rekruttering
        • University of California, Los Angeles
        • Ta kontakt med:
        • Hovedetterforsker:
          • Ram Parvataneni, MD
        • Hovedetterforsker:
          • Jacqueline Fahey, MD
      • San Francisco, California, Forente stater, 94115
        • Rekruttering
        • University of California, San Francisco
        • Hovedetterforsker:
          • Vanessa L Jacoby, MD, MAS
        • Hovedetterforsker:
          • Alison Huang, MD, MAS
        • Ta kontakt med:
        • Ta kontakt med:
    • Minnesota
      • Rochester, Minnesota, Forente stater, 55905
        • Rekruttering
        • Mayo Clinic
        • Ta kontakt med:
        • Hovedetterforsker:
          • Sarah Rassier, MD
    • Mississippi
      • Jackson, Mississippi, Forente stater, 39216
        • Rekruttering
        • University of Mississippi Medical Center
        • Ta kontakt med:
          • Sheila Belk
        • Hovedetterforsker:
          • Kedra Wallace, PhD
        • Underetterforsker:
          • Elizabeth Lutz, MD
        • Ta kontakt med:
    • North Carolina
      • Durham, North Carolina, Forente stater, 27710
        • Rekruttering
        • Duke University
        • Hovedetterforsker:
          • Craig Sobolewski, MD
        • Ta kontakt med:

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

21 år til 53 år (Voksen)

Tar imot friske frivillige

Ja

Kjønn som er kvalifisert for studier

Hunn

Beskrivelse

Inclusion Criteria:

  • At least 21 and less than 54 years of age (to focus on an adult, premenopausal population)
  • Female sex, based on sex identified on their birth certificate (no other gender requirements)
  • Have uterine leiomyomata that have been visualized on pelvic imaging (i.e., ultrasound or MRI) in the last 24 months
  • Report symptoms associated with leiomyomata such as heavy uterine bleeding, pelvic pressure or discomfort, urinary or bowel abnormalities, or dyspareunia for the past 3 months
  • Have at least moderate leiomyomata symptom burden, with UFS-QOL SSS score of 30 or higher at baseline
  • Has had a menstrual period in the past 3 months (90 days)
  • Agree to use a non-hormonal or barrier method of contraception with any sexual activity with a non-sterile male partner during the study period (i.e., use of copper IUD is consistent with eligibility)

Exclusion Criteria:

  • Screening pelvic imaging indicating any leiomyomata ≥10 cm in maximum diameter, or uterine size ≥16 cm in length (equivalent to 16 weeks gestation)-note that candidates who exclusively have prior clinical pelvic imaging 12-24 months ago will be excluded if imaging includes leiomyomata ≥9 cm in maximum diameter, or uterine size ≥15 cm in length, presuming leiomyoma growth of ≥1 cm per year
  • Screening pelvic imaging indicating only one, sole leiomyoma <2 cm in maximum diameter
  • Any submucosal leiomyoma that is >50% within uterine cavity (FIGO Type 0 or Type 1 leiomyomata)
  • Visit to the emergency room or hospitalization for leiomyoma symptoms in the last 12 weeks
  • Leiomyomata treated by surgery, radiologic procedure in the last 12 weeks; or plans to undergo any of the above in the next 24 weeks
  • Leiomyomata treated by GRNH agonist or antagonist in the last 12 weeks (if injected) or in the last 4 weeks (if oral); or plans to use the above in the next 24 weeks
  • Currently pregnant or lactating, pregnant or lactating in the past 12 weeks, or planning to become pregnant in the next 24 weeks
  • Screening serum hemoglobin <8 g/dL, or history of blood transfusion in the last 12 weeks (indicating severe anemia)
  • Screening cholesterol lipid panel testing showing LDL cholesterol level ≥ 190 mg/dL (due to rare side effects over long-term use of aromatase inhibitors in postmenopausal women)
  • Screening serum estradiol level <30 pg/mL (consistent with postmenopausal status)
  • For women aged 45 years or older only: irregular menstrual cycles (menstrual cycles <21 days or >38 days between periods), prolonged menstrual bleeding (bleeding >14 days), or bleeding in between menstrual periods, unless already evaluated by a clinician to discuss endometrial biopsy (uterine biopsy) to rule out endometrial hyperplasia.
  • History of osteoporosis (based on self-reported DEXA indicating bone mineral density Z-score < -2.0 at spine, total hip, or femoral neck; a prior fracture judged to be a fragility fracture; or self-reported use of bisphosphonates, calcitonin, calcitriol, ipriflavone, teriparatide, or denosumab for bone density loss)
  • History of severe liver disease (Child Pugh Class C cirrhosis), posing safety risks for use of letrozole
  • Current or prior history of breast cancer (given potential need to take letrozole for breast cancer treatment or secondary prevention)
  • Screening pelvic imaging indicating an Ovarian-Adnexal Reporting and Data System (O-RADS) category 3, 4, or 5 ovarian or adnexal lesion
  • Screening pelvic imaging concerning for other current cancer of the gynecologic, genitourinary or gastrointestinal system
  • Prior hypersensitivity or significant adverse reaction to letrozole or any aromatase inhibitor, or to an ingredient in the placebo capsule
  • Use of letrozole, other aromatase inhibitor, or selective estrogen receptor modulator (SERM) medications in the past 4 weeks, or existing plans to initiate one of these in the next 24 weeks
  • Use of oral, vaginal, or topical exogenous estrogen, progestin, or androgen therapy in the past 4 weeks; or injectable forms of the above in the past 12 weeks; or plans to initiate any of the above in the next 24 weeks
  • Use of medications with potential unsafe interactions with letrozole in the past 4 weeks (methadone, levomethadone, nintedanib, thalidomide), or plans to initiate these in the next 24 weeks
  • Any condition that, in the opinion of the investigators, would interfere with ability to complete study procedures, including acute or uncontrolled mental health condition, substance abuse, or inability to complete procedures in English (or Spanish, for sites that offer study assessments in Spanish)

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Behandling
  • Tildeling: Randomisert
  • Intervensjonsmodell: Parallell tildeling
  • Masking: Trippel

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: Letrozole

Oral letrozole 2.5mg/day
Legemiddel: Letrozole 2.5mg

Oral letrozole 2.5mg/day
Placebo komparator: Placebo and Letrozole

Placebo capsule for 12 weeks; Oral letrozole 2.5mg/day for 12 weeks
Legemiddel: Letrozole 2.5mg

Oral letrozole 2.5mg/day

Annen: Placebo

Placebo capsule

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Uterine leiomyoma-related symptom severity over 12 weeks of treatment
Tidsramme: Baseline to 12 weeks

Change in Uterine Fibroid Symptoms Quality of Life (UFS-QOL) Symptom Severity Scale (SSS) score [Range 8-40 with higher score indicating worse symptoms and worse outcomes]
Baseline to 12 weeks

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Uterine leiomyoma-related quality of life over 12 weeks of treatment
Tidsramme: Baseline to 12 weeks

Change in Uterine Fibroid Symptoms Quality of Life (UFS-QOL) Health-Related QOL component score [Range 29-145 points, with higher score indicating better QoL and better outcomes]
Baseline to 12 weeks
Total leiomyoma volume over 12 weeks of treatment
Tidsramme: Baseline to 12 weeks

Change in total leiomyoma volume based on pelvic ultrasound measurements
Baseline to 12 weeks
Total uterine volume over 12 weeks of treatment
Tidsramme: Baseline to 12 weeks

Change in total uterine volume based on pelvic ultrasound measurements
Baseline to 12 weeks
Symptoms of heavy menstrual bleeding
Tidsramme: Baseline to 12 weeks

Change in symptoms of heavy menstrual bleeding based on a modified Menstrual Bleeding Questionnaire (MBQ) score [Range 0-48 with higher MBQ score indicating worse symptoms and a negative impact on quality of life]
Baseline to 12 weeks
Improvement in Sexual Functioning
Tidsramme: Baseline to 12 weeks

Change in pelvic problems-related sexual function as measured by the Sexual Health Outcomes in Women Questionnaire (SHOW-Q) Pelvic Problems Interference subscale score [Range 0-100 with higher scores indicating better sexual function]
Baseline to 12 weeks
Symptoms of pelvic pain
Tidsramme: Baseline to 12 weeks

Change in pelvic pain severity/intensity "on average" (evaluated on a standard numerical rating scale of 0-10, lower rating indicating better outcomes and less pain)
Baseline to 12 weeks
Symptoms of urogenital distress
Tidsramme: Baseline to 12 weeks

Change in distressing urogenital symptoms such as urinary frequency, urinary incontinence, and genital pain, as measured by Urogenital Distress Inventory-6 (UDI-6) [Range 0-100 with higher scores indicating higher disability/worse outcomes]
Baseline to 12 weeks
Effect of letrozole on serum cholesterol levels
Tidsramme: Baseline to 12 weeks

Change in serum LDL cholesterol levels
Baseline to 12 weeks
Effect of letrozole on serum estradiol levels
Tidsramme: Baseline to 12 weeks

Change in serum estradiol levels
Baseline to 12 weeks
Effect of letrozole on frequency of hot flashes
Tidsramme: Baseline to 12 weeks

Change in frequency of vasomotor symptoms (hot flashes) as measured by the Hot Flush Rating Scale (HFRS) [no scale range but less # of reported hot flashes indicates better outcome]
Baseline to 12 weeks

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

University of California, San Francisco

Samarbeidspartnere

Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)

Etterforskere

  • Hovedetterforsker: Vanessa Jacoby, MD, MAS, University of California, San Francisco
  • Hovedetterforsker: Alison Huang, MD, MAS, University of California, San Francisco

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Faktiske)

24. juli 2024

Primær fullføring (Antatt)

11. september 2028

Studiet fullført (Antatt)

11. desember 2028

Datoer for studieregistrering

Først innsendt

15. november 2023

Først innsendt som oppfylte QC-kriteriene

15. november 2023

Først lagt ut (Faktiske)

22. november 2023

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

6. oktober 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

5. oktober 2026

Sist bekreftet

1. oktober 2026

Mer informasjon

Begreper knyttet til denne studien

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • 23-39255
  • R01HD112465 (U.S. NIH-stipend/kontrakt)

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

NEI

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Ja

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

produkt produsert i og eksportert fra USA

Nei

Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .

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