According to ClinicalTrial.gov data, there is one observational study (ClinicalTrials.gov ID: NCT05771337) that aims to evaluate the diagnostic and prognostic value of hsa_circ_0001785 (Circ-ELP3) and hsa_circ_100219 (Circ-FAF1) in serum samples from BC patients. The gene discussed is FAF1; the disease is breast cancer.