CER San Juan | San Juan, Argentina
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About
This is a Phase 3, open-label, randomized, clinical trial evaluating the efficacy and safety of gedatolisib plus fulvestrant with or without palbociclib for the treatment of patients with locally advanced or metastatic HR+/HER2- breast cancer following progression on or after CDK4/6 and aromatase inhibitor therapy.
Full description
This is a Phase 3, open-label, randomized clinical trial evaluating the efficacy and safety of gedatolisib plus fulvestrant with or without palbociclib for the treatment of patients with advanced (inoperable) or metastatic Hormone Receptor Positive, Human Epidermal Growth Factor Receptor 2 Negative (HR+/HER2-) breast cancer following progression on or after CDK4/6 and aromatase inhibitor therapy. Gedatolisib is an intravenously administered pan-PI3K/mTOR inhibitor. Palbociclib is a CDK4/6 inhibitor. Fulvestrant is a selective estrogen receptor degrader (SERD). Subjects will be assessed for PIK3CA status and then randomized to treatment arms according to their confirmed PIK3CA mutation status.
Enrollment
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Inclusion criteria
Exclusion criteria
History of malignancies other than adequately treated non-melanoma skin cancer, curatively treated in situ cancer of the cervix, or other solid tumors curatively treated with no evidence of disease for ≥3 years
Prior treatment with a phosphoinositide 3-kinase (PI3K) inhibitor, a protein kinase B (Akt) inhibitor, or a mechanistic target of rapamycin (mTOR) inhibitor
Prior treatment with chemotherapy and antibody drug conjugates for advanced disease is not permitted (prior adjuvant or neoadjuvant chemotherapy is permitted)
More than 2 lines of prior endocrine therapy treatment
Bone only disease that is only blastic with no soft tissue component
Subjects with type 1 diabetes or uncontrolled type 2 diabetes
Known and untreated, or active, brain or leptomeningeal metastases
a. Subjects with previously treated central nervous system (CNS) metastases may be enrolled in the study if they meet the following criteria: do not require supportive therapy with steroids; do not have seizures and do not exhibit uncontrolled neurological symptoms; stable disease confirmed by radiographic assessment within at least 4 weeks prior to enrollment
Patients with advanced, symptomatic, visceral spread that are at risk of life-threatening complication in the short-term
History of clinically significant cardiovascular abnormalities such as: Congestive heart failure (New York Heart Association (NYHA) classification ≥ II within 6 months of study entry
Myocardial infarction within 12 months of study entry
History of any uncontrolled (or untreated) clinically significant cardiac arrhythmias, (e.g., ventricular tachycardia), complete left bundle branch block, high grade AV block (e.g., bifascicular block, Mobitz type II and third degree AV block), supraventricular, nodal arrhythmias, or conduction abnormality in the previous 12 months
Uncontrolled hypertension defined by systolic blood pressure (SBP) ≥160 mmHg and/or diastolic blood pressure (DBP) ≥100 mmHg, with or without antihypertensive medication (initiation or adjustment of antihypertensive medication[s] is allowed prior to screening)
Long QT syndrome, family history of idiopathic sudden death or congenital long QT syndrome, or any of the following:
Known hypersensitivity to the study drugs or their components
Pregnant or breast-feeding women
Concurrent participation in another interventional clinical trial
Primary purpose
Allocation
Interventional model
Masking
701 participants in 6 patient groups
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Central trial contact
Nadene Zack, MS
Data sourced from clinicaltrials.gov
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