AAA503

Study protocol title: A Phase I/II, open-label, multi-center trial of [177Lu]Lu-NeoB in combination with capecitabine in adult patients with gastrin releasing peptide receptor positive, estrogen receptor-positive, human epidermal growth receptor-2 negative metastatic breast cancer after progression on previous endocrine therapy in combination with a CDK4/6 inhibitor

A Phase I/IIa open-label, multi-center study to evaluate the safety, tolerability, whole-body distribution, radiation dosimetry and anti-tumor activity of [177Lu]-NeoB administered in patients with advanced solid tumors known to overexpress gastrin-releasing peptide receptor (GRPR).