Efficacy and Safety of 177Lu-DOTA-IBA in Tumor Bone Metastasis Treatment

作者：Tingting Xu, Yudi Wang, Guangfu Liu, Hongmei Li, Gengcuo Qu, Xiaoling Zhang, Wei Wang, Naiguo Xing, Qingchu Hua, Yue Chen · 发表于：Clinical Nuclear Medicine · 年份：2024 · DOI：10.1097/rlu.0000000000005573 · 被引用次数：16 · 研究领域：Radiopharmaceutical Chemistry and Applications、Management of metastatic bone disease、Neuroblastoma Research and Treatments

PURPOSE: The aim of this study was to evaluate the efficacy and safety of 177Lu-DOTA-IBA for pain palliation in participants with bone metastases and confirm its potential for treating bone metastasis. PATIENTS AND METHODS: Overall, 69 participants with bone metastases were included. 68Ga-DOTA-IBA PET/CT was performed within 1 week before treatment. Vital signs, blood markers, electrocardiogram, Karnofsky Performance Status (KPS), and pain scores were evaluated within 7 days before treatment. Postadministration of 177Lu-DOTA-IBA, participants' vital signs and general conditions were monitored. Follow-up evaluations of KPS, pain scores, and blood biomarkers were performed within 8 weeks. 68Ga-DOTA-IBA PET/CT was repeated to evaluate imaging responses at 8 weeks. Imaging responses were defined as complete response, partial response, stable disease, and disease progression. Subsequent treatments were administered based on participants' agreement and clinical conditions. RESULTS: Sixty-nine participants received at least 1 dose of 177Lu-DOTA-IBA treatment; 22 received 38 reinjected doses, totaling 107 treatments. The median injection dose of 177Lu-DOTA-IBA was 1110 MBq. The pain remission rates after first treatment, retreatment, and total treatment were 82.5%, 72.4%, and 79.3%, respectively. The improvement rates in KPS for first treatment, retreatment, and total treatment were 81.3%, 60.6%, and 74.2%, respectively. The total incidence of the pain flare reaction (temporary aggra...