PRaG 3.0 therapy for human epidermal growth factor receptor 2-positive metastatic pancreatic ductal adenocarcinoma: A case report.

Background: Pancreatic ductal adenocarcinoma (PDAC) is a highly fatal disease with limited effective treatment especially after first-line chemotherapy. The human epidermal growth factor receptor 2 (HER-2) immunohistochemistry (IHC) positive is associated with more aggressive clinical behavior and shorter overall survival in PDAC.

Case Summary: We present a case of multiple metastatic PDAC with IHC mismatch repair proficient but HER-2 IHC weakly positive at diagnosis that didn't have tumor regression after first-line nab-paclitaxel plus gemcitabine and PD-1 inhibitor treatment.

Biodistribution and preparation of technetium-99m-labeled D-D₃ monoclonal antibody against pro-gastrin-releasing peptide (₃₁₋₉₈) in mice.

Background: We previously reported that iodine-131((131)I)-labeled anti-pro-gastrin-releasing peptide (ProGRP(31-98)) monoclonal antibody D-D3 could selectively accumulate in the tumor sites of nude mice bearing small cell lung cancer (SCLC) xenografts. However, (131)I-D-D3 was cleared slowly from the body, and the best radioimmunoimaging time for SCLC was 72 - 96 hours after injection. The aims of this study were to radiolabel anti-ProGRP(31-98) D-D3 monoclonal antibody with technetium-99m ((99m)Tc) and to investigate the biodistribution of this antibody in healthy ICR mice.

[Values of (99m)TcO(-)(4)thyroid imaging plus ultrasonography in the differential diagnoses of thyroid nodules].

Objective: To evaluate the diagnostic values of (99m)TcO(-)(4) thyroid imaging plus ultrasonography in the differentiation of benign and malignant thyroid nodules.

Methods: (99m)TcO(-)(4) thyroid imaging and ultrasonography were performed for 114 patients with 125 thyroid nodules. And the examination results were compared with the post-operative pathological findings.