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Menstrual Cup for Early Endometrial Cancer Detection in Lynch Syndrome

Menstrual Cup-based Endometrial Collection as an Alternative to Endometrial Biopsy in Lynch Syndrome Patients

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07220239
Acronym
SCREEN-CUP
Enrollment
25
Registered
2025-10-23
Start date
2025-11-20
Completion date
2027-03-01
Last updated
2026-06-10

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Early Detection of Cancer, Endometrial Cancer, Lynch Syndrome, Screening

Keywords

Endometrial Cancer, Lynch Syndrome, Screening, Early detection, Organoids

Brief summary

Study Goal: This pilot study wants to find out if using a menstrual cup can be a good, non-invasive way to collect samples from the lining of the uterus (called the endometrium) to help screen for endometrial cancer. This is especially important for women who have a higher chance of getting this cancer, such as those with a genetic condition called Lynch syndrome. Main Questions the Study Will Answer: 1. Can a menstrual cup collect enough uterine lining (endometrial tissue) for doctors to examine under a microscope? 2. Are the samples from the menstrual cup as useful for diagnosis as samples taken using the usual method (called an endometrial biopsy or EMB)? 3. Is using a menstrual cup at home easy, effective, and comfortable for participants? 4. Can scientists grow small lab models of the uterus (called organoids) from the menstrual cup samples and from biopsy samples? What Will Happen in the Study: * Participants will use a menstrual cup at home to collect menstrual blood. * They will also have a standard endometrial biopsy done by a healthcare provider. * After both collections, participants will fill out a short survey about how comfortable and easy it was to use the menstrual cup. What the Study Will Measure: * Feasibility: How well participants are able to use the menstrual cup and send in the sample. * Sample Quality: Whether the menstrual cup collects enough good-quality tissue for testing, and how it compares to biopsy samples. * Participant Experience: How women feel about using the menstrual cup, based on the survey. * Lab Testing: Whether researchers can successfully grow endometrial organoids from both types of samples. Why This Study Matters: If this method works, it could offer a gentler, more convenient way for women to get checked for endometrial cancer-especially those who need regular screening. It could also make it easier to collect samples for research and improve early detection of cancer.

Detailed description

Menstrual Cup for Early Endometrial Cancer Detection in Lynch Syndrome (SCREEN-CUP) The study entails two parts that will be conducted one after each other. 1. Pre-pilot study Pre-pilot study including 5 menstruating females who will provide a one-time menstrual cup-based endometrial collection for the generation of organoids and for a pathological evaluation of endometrial specimen from menstrual fluid. After optimizing the study protocol in the pre-pilot study period, the main study will be conducted. 2. Main pilot study Prospective feasibility study including 20 female Lynch syndrome (LS) carriers undergoing annual endometrial biopsy for endometrial cancer surveillance or suspected endometrial pathology will provide a one-time menstrual cup-based endometrial collection and endometrial biopsy specimen. One study aim is to evaluate the comparability and quality of the menstrual cup-based endometrial collection with the EMB sample from the same patient. For the second study aim, endometrial sample collected with the menstrual cup and EMB will be used and compared for organoid generation. Patient satisfaction and feasibility will be monitored through patient and provider questionnaires.

Interventions

DEVICEMenstrual cup use

Menstrual cup use in menstruating women to collect menstrual fluid with the aim to 1) compare the histology to endometrial biopsy samples from the same patient, to 2) investigate the feasibility and clinical utility of a menstrual cup use as a screening method for endometrial cancer and to 3) generate organoids from the menstrual cup samples

Sponsors

Jessica D. St. Laurent, MD
Lead SponsorOTHER
Dana-Farber Cancer Institute
CollaboratorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
SCREENING
Masking
NONE

Masking description

Only one part of the outcome assessor will be masked: the pathologist evaluating the EMB specimen and menstrual cup-collected specimen.

Intervention model description

Pre-Pilot study: one study arm with healthy women Main Pilot study: one study arm with Lynch syndrome carriers

Eligibility

Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

Pre-pilot study Inclusion criteria: * Individuals over the age of 18 * Menstruating

Exclusion criteria

* Levonorgestrel intrauterine device (IUD) in situ or removed within the last 30 days prior to sample collection * Patients with prior endometrial ablation * Prior history of endometrial cancer or endometrial intraepithelial neoplasia * History of germline pathologic germline variant in MLH1, MSH2, MSH6, PMS2, or EPCAM * Known allergy against menstrual cup material (silicone) Main Study Inclusion criteria * LS carrier with a pathogenic or likely pathogenic germline variant in MLH1, MSH2, MSH6, PMS2, or EPCAM * Individuals over the age of 18 * Planned screening EMB * Menstruating * Ability to give consent

Design outcomes

Primary

MeasureTime frameDescription
Proportion of samples considered adequate for pathologic evaluationPostprocedural (7-14 days after study visit #2)A pathologist will evaluate the menstrual cup-based sample and record its adequacy for pathological evaluation using a questionnaire with binary responses.

Secondary

MeasureTime frameDescription
Overall participant satisfaction with menstrual cup collection for endometrial screening.Periprocedural (on day of study visit #2)Participants self-report to questions on overall participant satisfaction with menstrual cup collection for endometrial screening with 5 answer possibilities ranging from "very satisfied" to "very dissatisfied".
Successful endometrial organoid generation from menstrual cup samplePostprocedural (5-7 days after study visit #2)Successful organoid generation from menstrual cup samples will be assessed by viability assays after 5 days of culture and immunofluorescence imaging to compare cell composition.
Successful endometrial organoid generation from endometrial biopsy sample (EMB).Postprocedural (5-7 days after study visit #2)Successful organoid generation from EMB samples will be assessed by viability assays after 5 days of culture and immunofluorescence imaging to compare cell composition.
Provider satisfaction of menstrual cup collection for endometrial cancer screening within this study settingThrough study completion, an average of 1 year.Provider self-report on question regarding satisfaction of menstrual cup collection for endometrial cancer screening within this study setting with 5 answer possiblities ranging from "very satisfied" to "very dissatisfied".

Countries

United States

Contacts

CONTACTJessica D St. Laurent, MD
jdstlaurent@bwh.harvard.edu857-215-1892
PRINCIPAL_INVESTIGATORJessica D St. Laurent, MD

Brigham and Women's Hospital

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 11, 2026