← Back to Clinical Trials
Recruiting Phase 4 NCT07176689

NCT07176689 Nirogacestat in Premenopausal Females With Desmoid Tumor/Aggressive Fibromatosis (DT/AF)

◆ AI Clinical Summary
Plain-language summary for patients
Clinical Trial Summary
NCT ID NCT07176689
Status Recruiting
Phase Phase 4
Sponsor SpringWorks Therapeutics, Inc., a healthcare company of Merck KGaA, Darmstadt, Germany
Condition Desmoid Tumor
Study Type INTERVENTIONAL
Enrollment 50 participants
Start Date 2025-09-17
Primary Completion 2031-02-26

Eligibility & Interventions

Sex Female only
Min Age 18 Years
Max Age 40 Years
Study Type INTERVENTIONAL
Interventions
Nirogacestat

Eligibility Fast-Check

Enter your details for a quick preliminary check. This does not replace medical advice.

What to Expect as a Participant

You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.

Phase 4 studies follow an already-approved treatment in real-world conditions to monitor long-term safety and effectiveness.

This trial targets 50 participants in total. It began in 2025-09-17 with a primary completion date of 2031-02-26.

⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.

Brief Summary

This study is being conducted to study how nirogacestat may affect the ovarian function of adult premenopausal women with progressing desmoid tumors/aggressive fibromatosis.

Eligibility Criteria

Inclusion Criteria: * Participant is female, postpubertal aged ≥18 and ≤40 years of age at the time of signing the informed consent and premenopausal at baseline. Premenopausal is defined as meeting all of the following: Estradiol \>30 pg/mL. Follicle-stimulating hormone (FSH) \<40 IU/L. Regular menses (e.g., menstrual cycle length of 21 to 35 days) for at least 3 menstrual cycles prior to signing informed consent * Participant uses 1 highly effective non-hormonal contraceptive method, has a negative pregnancy test prior to first dose of study treatment), is not breastfeeding, agrees to not harvest or donate eggs for at least 90 days prior to and during the study * Participant has histologically confirmed DT/AF with symptomatic or progressive disease requiring systemic treatment * Participant has an Eastern Cooperative Oncology Group (ECOG) performance status ≤2 at screening * Participant has adequate organ and bone marrow function. Exclusion Criteria: * Participant has known malabsorption syndrome or preexisting gastrointestinal conditions that may impair absorption of nirogacestat * Participant has experienced any of the following within 6 months of signing informed consent: clinically significant cardiac disease (New York Heart Association Class III or IV), myocardial infarction, severe/unstable angina, coronary/peripheral artery bypass graft, symptomatic congestive heart failure, cerebrovascular accident, transient ischemic attack, or symptomatic pulmonary embolism. * Participant has had lymphoma, leukemia, or any malignancy within the past 5 years at the time of informed consent, except for any locally recurring cancer that has been treated curatively (e.g., resected basal or squamous cell skin cancer, superficial bladder cancer, carcinoma in situ of the cervix or breast), with no evidence of metastatic disease for 3 years at the time of informed consent. * Participant has known hepatic impairment * Participant previously received or is currently receiving gamma secretase inhibitors or anti-Notch antibody therapy * Participant is currently using any treatment for DT/AF including tyrosine kinase inhibitors (TKIs) or any investigational treatment 28 days (or 5 half-lives, whichever is longer) prior to the first dose of study treatment * Participant is currently using or anticipates using food or drugs that are known strong/moderate cytochrome P450 (CYP) 3A4 inhibitors, or strong CYP3A inducers within 14 days prior to the first dose of study treatment. * Participant has a history of polycystic ovary syndrome, hypothalamic amenorrhea, severe endometriosis involving ovaries, family history of primary ovarian insufficiency, any chromosomal abnormality, mutation, gene variant or medical condition associated with early/premature menopause, including a history of OT while on a TKI * Participant is currently using or has used hormonal contraception or ovarian suppression within 90 days prior to first dose of study treatment * Participant has a history of heavy tobacco smoking (≥20 pack years) or is a current smoker (\>1 pack per day) * Participant has experienced other severe acute or chronic medical or psychiatric conditions within 1 year of signing informed consent. * Participant is unable to comply with study related procedures (including, but not limited to, the completion of a menstrual diary and electronic patient-reported outcomes and ability to return to clinic for hormone level blood draws timed to the menstrual cycle (days 1-5)

Contact & Investigator

Central Contact

US Medical Information

✉ eMediUSA@emdserono.com

📞 888-275-7376

Principal Investigator

Medical Responsible

STUDY DIRECTOR

SpringWorks Therapeutics, Inc., a healthcare company of Merck KGaA, Darmstadt, Germany

Frequently Asked Questions

Who can join the NCT07176689 clinical trial?

This trial is open to female participants only, aged 18 Years or older, up to 40 Years, studying Desmoid Tumor. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.

What phase is the NCT07176689 trial and what does that mean for participants?

Phase 4 studies are conducted after a treatment has been approved. They monitor long-term safety and real-world effectiveness in a broader patient population.

Is NCT07176689 currently recruiting?

Yes, NCT07176689 is actively recruiting participants. Contact the research team at eMediUSA@emdserono.com for enrollment information.

Where is the NCT07176689 trial being conducted?

This trial is being conducted at Brussels, Belgium, Mannheim, Germany, Meldola, Italy, Candiolo, Italy and 11 additional locations.

Who is sponsoring the NCT07176689 clinical trial?

NCT07176689 is sponsored by SpringWorks Therapeutics, Inc., a healthcare company of Merck KGaA, Darmstadt, Germany. The principal investigator is Medical Responsible at SpringWorks Therapeutics, Inc., a healthcare company of Merck KGaA, Darmstadt, Germany. The trial plans to enroll 50 participants.

Related Trials

ClinicalMetric — Independent clinical trial intelligence platform. Not affiliated with NIH, ClinicalTrials.gov, the U.S. FDA, or any pharmaceutical company, hospital, or clinical research organization. Trial data is sourced from ClinicalTrials.gov for informational purposes only and does not constitute medical advice. Do not make any treatment, enrollment, or health decisions based solely on information found here — always consult a qualified healthcare professional. Full Disclaimer  ·  Last Reviewed: November 2026  ·  Data Methodology