Nirogacestat for Adults With Desmoid Tumor/Aggressive Fibromatosis (DT/AF)
This study evaluates nirogacestat in the treatment of desmoid tumor/aggressive fibromatosis (DT/AF). Half of the participants will receive nirogacestat while the other half will receive placebo.
A Randomized, Double-Blind, Placebo-Controlled, Phase 3 Trial of Nirogacestat Versus Placebo in Adult Patients With Progressing Desmoid Tumors/Aggressive Fibromatosis (DT/AF)
Desmoid tumors, also referred to as aggressive fibromatosis, are rare, locally invasive, slow growing soft tissue tumors. Although considered benign because of their inability to metastasize, desmoid tumors can cause significant morbidity and occasionally mortality in patients.
Nirogacestat (PF-03084014) is a potent, small molecule, selective, reversible, noncompetitive inhibitor of γ-secretase (GS) with a potential antitumor activity.
Nirogacestat is being investigated for the treatment of desmoid tumors due to its ability to bind to GS, blocking proteolytic activation of Notch receptors. Previous clinical study data have shown that Notch signaling plays an important role in cancer development. Hence, inhibition of Notch signaling is an important strategy for therapeutic treatment.
Desmoid Tumor Aggressive Fibromatosis PF-03084014 GSI gamma secretase inhibitor notch pathway Fibromatosis, Aggressive Fibroma Aggression Nirogacestat oral tablet Nirogacestat
For people ages 18 years and up
Key Inclusion Criteria:
- Participant has histologically confirmed DT/AF (by local pathologist prior to informed consent) that has progressed by ≥ 20% as measured by RECIST v1.1 within 12 months of the screening visit scan.
- Participant has:
- Treatment naïve, measurably progressing DT/AF that is deemed not amenable to surgery without the risk of significant morbidity; OR
- Recurrent, measurably progressing DT/AF following at least one line of therapy; OR
- Refractory, measurably progressing DT/AF following at least one line of therapy.
- Participant has a DT/AF tumor where continued progressive disease will not result in immediate significant risk to the participant.
- Participant agrees to provide archival or new tumor tissue for re-confirmation of disease.
- If participant is currently being treated with any therapy for the treatment of DT/AF, this must be completed at least 28 days (or 5 half-lives, whichever is longer) prior to first dose of study treatment. All toxicities from prior therapy must be resolved to ≤ Grade 1 or clinical baseline.
- Participants who are receiving chronic nonsteroidal anti-inflammatory drugs (NSAIDs) as treatment for conditions other than DT/AF must be receiving them prior to the documented DT/AF progressive disease (inclusion criteria 2) and on a stable dose for at least 28 days prior to first dose of study treatment.
- Participant has an Eastern Cooperative Oncology Group (ECOG) performance status ≤ 2 at screening.
- Participant has adequate organ and bone marrow function.
Key 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 abnormal QT interval at screening.
- Participant is using concomitant medications that prolong the QT/QTcF interval at the time of informed consent.
- Participant has a history of additional risk factors for Torsades de Pointes (TdP) (e.g., heart failure, hypokalemia, family history of Long QT Syndrome).
- 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 current or chronic history of liver disease or known hepatic or biliary abnormalities (except for Gilbert's syndrome or asymptomatic gallstones).
- Participant previously received or is currently receiving therapy with GS inhibitors or anti-Notch antibody therapy.
- Participant is currently using any treatment for DT/AF including tyrosine kinase inhibitors (TKIs), NSAIDs (chronic daily use) or any investigational treatment 28 days (or 5 half-lives, whichever is longer) prior to the first dose of study treatment.
Participant has started any treatment for DT/AF after the documented DT/AF progressive disease (inclusion criteria 2).
- Participant is currently using or anticipates using food or drugs that are known strong/moderate cytochrome P450 3A4 (CYP3A4) inhibitors, or strong CYP3A inducers within 14 days prior to the first dose of study treatment.
- Participant has a positive human immunodeficiency virus antibody test.
- Participant has presence of Hepatitis B surface antigen at screening.
- Participant has a positive Hepatitis C antibody or Hepatitis C ribonucleic acid (RNA) test result at screening or within 3 months prior to starting study treatment.
- Participant is unable to tolerate MRI or for whom MRI is contraindicated.
- 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 electronic patient report outcomes (ePROs), or the ePRO questionnaires are not available in the participant's preferred language).
- SpringWorks' Site
not yet accepting patients
San Francisco California 94115 United States
- Stanford Cancer Center
accepting new patients
Palo Alto California 94304 United States
Lead Scientist at UCSF
- Thierry Jahan
Professor, Medicine. Authored (or co-authored) 62 research publications
- accepting new patients
- Start Date
- Completion Date
- SpringWorks Therapeutics, Inc.
- Phase 3
- Study Type
- Last Updated
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