About this trial
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.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
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
Disqualifiers
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
Trial design
Parallel
Treatments tested in this trial
Letrozole 2.5mg
DrugOral letrozole 2.5mg/day
Placebo
Other interventionPlacebo capsule
Treatment groups
Trial outcomes
Primary outcomes
Uterine leiomyoma-related symptom severity over 12 weeks of treatment
Change in Uterine Fibroid Symptoms Quality of Life (UFS-QOL) Symptom Severity Scale (SSS) score \[Range 8-40 with higher score indicating worse symptoms and worse outcomes\]
Secondary outcomes
Uterine leiomyoma-related quality of life over 12 weeks of treatment
Change in Uterine Fibroid Symptoms Quality of Life (UFS-QOL) Health-Related QOL component score \[Range 29-145 points, with higher score indicating better QoL and better outcomes\]
Total leiomyoma volume over 12 weeks of treatment
Change in total leiomyoma volume based on pelvic ultrasound measurements
Total uterine volume over 12 weeks of treatment
Change in total uterine volume based on pelvic ultrasound measurements
Symptoms of heavy menstrual bleeding
Change in symptoms of heavy menstrual bleeding based on a modified Menstrual Bleeding Questionnaire (MBQ) score \[Range 0-48 with higher MBQ score indicating worse symptoms and a negative impact on quality of life\]
Sponsors and contacts
Click on the lead sponsor to view all of their trials.
University of California, San Francisco
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
Collaborator