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Receta de letrozol para el mioma uterino (PLUM)

5 de octubre de 2026 actualizado por: University of California, San Francisco

Letrozol para el tratamiento de los fibromas uterinos: un ensayo aleatorizado controlado con placebo

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.

Descripción general del estudio

Estado

Reclutamiento

Intervención / Tratamiento

Tipo de estudio

Intervencionista

Inscripción (Estimado)

140

Fase

  • Fase 4

Contactos y Ubicaciones

Esta sección proporciona los datos de contacto de quienes realizan el estudio e información sobre dónde se lleva a cabo este estudio.

Estudio Contacto

Copia de seguridad de contactos de estudio

  • Nombre: Study Coordinator
  • Número de teléfono: (510) 788-0545
  • Correo electrónico: plumstudy@ucsf.edu

Ubicaciones de estudio

    • California
      • Los Angeles, California, Estados Unidos, 90095
        • Reclutamiento
        • University of California, Los Angeles
        • Contacto:
        • Investigador principal:
          • Ram Parvataneni, MD
        • Investigador principal:
          • Jacqueline Fahey, MD
      • San Francisco, California, Estados Unidos, 94115
        • Reclutamiento
        • University of California, San Francisco
        • Investigador principal:
          • Vanessa L Jacoby, MD, MAS
        • Investigador principal:
          • Alison Huang, MD, MAS
        • Contacto:
        • Contacto:
    • Minnesota
      • Rochester, Minnesota, Estados Unidos, 55905
        • Reclutamiento
        • Mayo Clinic
        • Contacto:
        • Investigador principal:
          • Sarah Rassier, MD
    • Mississippi
      • Jackson, Mississippi, Estados Unidos, 39216
        • Reclutamiento
        • University of Mississippi Medical Center
        • Contacto:
          • Sheila Belk
        • Investigador principal:
          • Kedra Wallace, PhD
        • Sub-Investigador:
          • Elizabeth Lutz, MD
        • Contacto:
          • Study Coordinator
          • Número de teléfono: 601-984-6628
          • Correo electrónico: lmelaku@umc.edu
    • North Carolina
      • Durham, North Carolina, Estados Unidos, 27710
        • Reclutamiento
        • Duke University
        • Investigador principal:
          • Craig Sobolewski, MD
        • Contacto:

Criterios de participación

Los investigadores buscan personas que se ajusten a una determinada descripción, denominada criterio de elegibilidad. Algunos ejemplos de estos criterios son el estado de salud general de una persona o tratamientos previos.

Criterio de elegibilidad

Edades elegibles para estudiar

21 años a 53 años (Adulto)

Acepta Voluntarios Saludables

Sí

Géneros elegibles para el estudio

Femenino

Descripción

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)

Plan de estudios

Esta sección proporciona detalles del plan de estudio, incluido cómo está diseñado el estudio y qué mide el estudio.

¿Cómo está diseñado el estudio?

Detalles de diseño

  • Propósito principal: Tratamiento
  • Asignación: Aleatorizado
  • Modelo Intervencionista: Asignación paralela
  • Enmascaramiento: Triple

Armas e Intervenciones

Grupo de participantes/brazo
Intervención / Tratamiento
Experimental: Letrozole

Oral letrozole 2.5mg/day

Oral letrozole 2.5mg/day

Comparador de placebos: Placebo and Letrozole

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

Oral letrozole 2.5mg/day

Placebo capsule

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Uterine leiomyoma-related symptom severity over 12 weeks of treatment
Periodo de tiempo: 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

Medidas de resultado secundarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Uterine leiomyoma-related quality of life over 12 weeks of treatment
Periodo de tiempo: 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
Periodo de tiempo: 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
Periodo de tiempo: Baseline to 12 weeks

Change in total uterine volume based on pelvic ultrasound measurements

Baseline to 12 weeks
Symptoms of heavy menstrual bleeding
Periodo de tiempo: 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
Periodo de tiempo: 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
Periodo de tiempo: 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
Periodo de tiempo: 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
Periodo de tiempo: Baseline to 12 weeks

Change in serum LDL cholesterol levels

Baseline to 12 weeks
Effect of letrozole on serum estradiol levels
Periodo de tiempo: Baseline to 12 weeks

Change in serum estradiol levels

Baseline to 12 weeks
Effect of letrozole on frequency of hot flashes
Periodo de tiempo: 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

Colaboradores e Investigadores

Aquí es donde encontrará personas y organizaciones involucradas en este estudio.

Investigadores

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

Fechas de registro del estudio

Estas fechas rastrean el progreso del registro del estudio y los envíos de resultados resumidos a ClinicalTrials.gov. Los registros del estudio y los resultados informados son revisados ​​por la Biblioteca Nacional de Medicina (NLM) para asegurarse de que cumplan con los estándares de control de calidad específicos antes de publicarlos en el sitio web público.

Fechas importantes del estudio

Inicio del estudio (Actual)

24 de julio de 2024

Finalización primaria (Estimado)

11 de septiembre de 2028

Finalización del estudio (Estimado)

11 de diciembre de 2028

Fechas de registro del estudio

Enviado por primera vez

15 de noviembre de 2023

Primero enviado que cumplió con los criterios de control de calidad

15 de noviembre de 2023

Publicado por primera vez (Actual)

22 de noviembre de 2023

Actualizaciones de registros de estudio

Última actualización publicada (Actual)

6 de octubre de 2026

Última actualización enviada que cumplió con los criterios de control de calidad

5 de octubre de 2026

Última verificación

1 de octubre de 2026

Más información

Términos relacionados con este estudio

Otros números de identificación del estudio

  • 23-39255
  • R01HD112465 (Subvención/contrato del NIH de EE. UU.)

Plan de datos de participantes individuales (IPD)

¿Planea compartir datos de participantes individuales (IPD)?

NO

Información sobre medicamentos y dispositivos, documentos del estudio

Estudia un producto farmacéutico regulado por la FDA de EE. UU.

Sí

Estudia un producto de dispositivo regulado por la FDA de EE. UU.

No

producto fabricado y exportado desde los EE. UU.

No

Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .

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