This study aims to describe real-world patient characteristics, treatment patterns, and adverse events associated with targeted therapies used in patients with complex vascular anomalies. The study will create an active registry for participating centers to enter data on patients with complex vascular anomalies being treated with sirolimus/everolimus (mTOR inhibitors), with/without trametinib (MEK inhibitor), or alpelisib (PIK3CA inhibitor). Tertiary care centers in the United States (US) that receive referrals for complex vascular anomaly cases and use Electronic Health Records (EHRs) will contribute patient medical chart reviews to this registry.
Diagnosed with a spectrum of vascular anomalies including but not limited to congenital vascular and lymphatic anomalies, vascular tumors and lymphatic malformations, and acquired vascular malformations.
Treated with ≥1 of mammalian target of rapamycin (mTOR) inhibitors, mitogen-activated protein kinase/ERK kinase (MEK) inhibitors and phosphoinositide 3-kinase (PI3K) inhibitors continuously for 3 months.
Patients diagnosed with a vascular anomaly who have not been treated with mTOR inhibitors, MEK inhibitors and PI3K inhibitors for at least 3 months.
Patients with other complex medical conditions; i.e. rare genetic syndromes.
Patients receiving many other systemic therapies making data collection not feasible.
Recurrent use of immunosuppressive agents, i.e. systemic steroids or targeted medical therapies for oncologic disorders, etc.