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Recept av Letrozol för livmodermyom (PLUM)

5 oktober 2026 uppdaterad av: University of California, San Francisco

Letrozol för behandling av uterina myom: en randomiserad, placebokontrollerad 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.

Studieöversikt

Status

Rekrytering

Betingelser

Intervention / Behandling

Studietyp

Interventionell

Inskrivning (Beräknad)

140

Fas

  • Fas 4

Kontakter och platser

Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.

Studiekontakt

Studera Kontakt Backup

Studieorter

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

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

21 år till 53 år (Vuxen)

Tar emot friska volontärer

Ja

Kön som är behöriga för studier

Kvinna

Beskrivning

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

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Primärt syfte: Behandling
  • Tilldelning: Randomiserad
  • Interventionsmodell: Parallellt uppdrag
  • Maskning: Trippel

Vapen och interventioner

Deltagargrupp / Arm
Intervention / Behandling
Experimentell: Letrozole

Oral letrozole 2.5mg/day
Läkemedel: Letrozole 2.5mg

Oral letrozole 2.5mg/day
Placebo-jämförare: Placebo and Letrozole

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

Oral letrozole 2.5mg/day

Övrig: Placebo

Placebo capsule

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Uterine leiomyoma-related symptom severity over 12 weeks of treatment
Tidsram: 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

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Uterine leiomyoma-related quality of life over 12 weeks of treatment
Tidsram: 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
Tidsram: 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
Tidsram: Baseline to 12 weeks

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

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

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

Samarbetspartners och utredare

Det är här du hittar personer och organisationer som är involverade i denna studie.

Sponsor

University of California, San Francisco

Samarbetspartners

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

Utredare

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

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart (Faktisk)

24 juli 2024

Primärt slutförande (Beräknad)

11 september 2028

Avslutad studie (Beräknad)

11 december 2028

Studieregistreringsdatum

Först inskickad

15 november 2023

Först inskickad som uppfyllde QC-kriterierna

15 november 2023

Första postat (Faktisk)

22 november 2023

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

6 oktober 2026

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

5 oktober 2026

Senast verifierad

1 oktober 2026

Mer information

Termer relaterade till denna studie

Ytterligare relevanta MeSH-villkor

Andra studie-ID-nummer

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

Plan för individuella deltagardata (IPD)

Planerar du att dela individuella deltagardata (IPD)?

NEJ

Läkemedels- och apparatinformation, studiedokument

Studerar en amerikansk FDA-reglerad läkemedelsprodukt

Ja

Studerar en amerikansk FDA-reglerad produktprodukt

Nej

produkt tillverkad i och exporterad från U.S.A.

Nej

Denna information hämtades direkt från webbplatsen clinicaltrials.gov utan några ändringar. Om du har några önskemål om att ändra, ta bort eller uppdatera dina studieuppgifter, vänligen kontakta register@clinicaltrials.gov. Så snart en ändring har implementerats på clinicaltrials.gov, kommer denna att uppdateras automatiskt även på vår webbplats .

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