ALB and neoplasm: Two widely used albumin binders, namely, 4-(p-iodophenyl) butyric acid (IPBA) and truncated Evans blue (EB), have shown potential in enhancing the tumour accumulation and retention of radiopharmaceuticals, thereby reinforcing their therapeutic effects.92 Wen et al. developed a series of albumin-binding FAPIs based on FAPI-02, named EB-FAPI-B1 to B4.