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Recept af Letrozol til uterin myom (PLUM)

5. oktober 2026 opdateret af: University of California, San Francisco

Letrozol til behandling af uterine fibromer: et randomiseret, placebo-kontrolleret forsøg

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.

Studieoversigt

Status

Rekruttering

Betingelser

Intervention / Behandling

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

140

Fase

  • Fase 4

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Undersøgelse Kontakt Backup

Studiesteder

  • Forenede Stater
    • California
      • Los Angeles, California, Forenede Stater, 90095
        • Rekruttering
        • University of California, Los Angeles
        • Kontakt:
        • Ledende efterforsker:
          • Ram Parvataneni, MD
        • Ledende efterforsker:
          • Jacqueline Fahey, MD
      • San Francisco, California, Forenede Stater, 94115
        • Rekruttering
        • University of California, San Francisco
        • Ledende efterforsker:
          • Vanessa L Jacoby, MD, MAS
        • Ledende efterforsker:
          • Alison Huang, MD, MAS
        • Kontakt:
        • Kontakt:
    • Minnesota
      • Rochester, Minnesota, Forenede Stater, 55905
        • Rekruttering
        • Mayo Clinic
        • Kontakt:
        • Ledende efterforsker:
          • Sarah Rassier, MD
    • Mississippi
      • Jackson, Mississippi, Forenede Stater, 39216
        • Rekruttering
        • University of Mississippi Medical Center
        • Kontakt:
          • Sheila Belk
        • Ledende efterforsker:
          • Kedra Wallace, PhD
        • Underforsker:
          • Elizabeth Lutz, MD
        • Kontakt:
    • North Carolina
      • Durham, North Carolina, Forenede Stater, 27710
        • Rekruttering
        • Duke University
        • Ledende efterforsker:
          • Craig Sobolewski, MD
        • Kontakt:

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

21 år til 53 år (Voksen)

Tager imod sunde frivillige

Ja

Køn, der er berettiget til at studere

Kvinde

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

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Tredobbelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Letrozole

Oral letrozole 2.5mg/day
Medicin: 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
Medicin: Letrozole 2.5mg

Oral letrozole 2.5mg/day

Andet: Placebo

Placebo capsule

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
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
Foranstaltningsbeskrivelse
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

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

University of California, San Francisco

Samarbejdspartnere

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

Efterforskere

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

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

24. juli 2024

Primær færdiggørelse (Anslået)

11. september 2028

Studieafslutning (Anslået)

11. december 2028

Datoer for studieregistrering

Først indsendt

15. november 2023

Først indsendt, der opfyldte QC-kriterier

15. november 2023

Først opslået (Faktiske)

22. november 2023

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

6. oktober 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

5. oktober 2026

Sidst verificeret

1. oktober 2026

Mere information

Begreber relateret til denne undersøgelse

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

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

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

INGEN

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

Studerer et amerikansk FDA-reguleret lægemiddelprodukt

Ja

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

produkt fremstillet i og eksporteret fra U.S.A.

Ingen

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

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