Jianhao Xie1,2, XueYu Yuan1, Weiqing Mao1, Haidong Cai1, Kejia Gao3, Zhongwei Lv1, Hui Wang4, Chao Ma1. 1. Department of Nuclear Medicine, Tenth People's Hospital of Tongji University, Shanghai, People's Republic of China. 2. Department of Orthopaedic, Beijing Jishuitan Hospital, Beijing, People's Republic of China. 3. Department of Nuclear Medicine, Shanghai No. 4 People's Hospital, Shanghai, People's Republic of China. 4. Department of Nuclear Medicine, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, People's Republic of China.
Abstract
Objective: To investigate the effects of 99Tc-methylene diphosphonate (99Tc-MDP) on osteoporosis (OS) in postmenopausal patients with differentiated thyroid cancer (DTC) under thyroid stimulating hormone (TSH) suppression. Patients and Methods: Patients (n = 142) were divided into two groups: (1) 99Tc-MDP (n = 70) and (2) alendronate (n = 72) treatments (NCT02304757). Bone mineral density (BMD) in the lumbar spine and hip was evaluated by DXA, along with bone turnover markers, safety, and quality of life (QOL) using SF-36 at three time points: before treatment and at 6 and/or 12 months after treatment. Results: The percentage change of BMD in total lumbar spine or hip showed no significant difference throughout the study (P > 0.025). 99Tc-MDP and alendronate treatment alone significantly increased BMD in the lumbar spine, but alendronate treatment also significantly increased BMD in total hip at 6 and 12 months, as compared with the baseline. There were no significant differences in the results of the SF-36 scores between the two treatment groups at any time during the whole study period. 99Tc-MDP significantly increased bone formation markers of osteocalcin at 6 and 12 months (P all < 0.05), PINP at 12 months (P = 0.001), and bone resorption markers of β-CTX at 6 and 12 months (p < 0.05) as compared with the alendronate treated group. No adverse event was observed in the 99Tc-MDP treatment group compared with alendronate (P = 0.014). Conclusion: 99Tc-MDP was as efficacious as alendronate in the improvement of lumbar BMD for DTC patients with OS under TSH stimulation. 99Tc-MDP was shown to be safe and improved patients' QOL.
Objective: To investigate the effects of 99Tc-methylene diphosphonate (99Tc-MDP) on osteoporosis (OS) in postmenopausal patients with differentiated thyroid cancer (DTC) under thyroid stimulating hormone (TSH) suppression. Patients and Methods: Patients (n = 142) were divided into two groups: (1) 99Tc-MDP (n = 70) and (2) alendronate (n = 72) treatments (NCT02304757). Bone mineral density (BMD) in the lumbar spine and hip was evaluated by DXA, along with bone turnover markers, safety, and quality of life (QOL) using SF-36 at three time points: before treatment and at 6 and/or 12 months after treatment. Results: The percentage change of BMD in total lumbar spine or hip showed no significant difference throughout the study (P > 0.025). 99Tc-MDP and alendronate treatment alone significantly increased BMD in the lumbar spine, but alendronate treatment also significantly increased BMD in total hip at 6 and 12 months, as compared with the baseline. There were no significant differences in the results of the SF-36 scores between the two treatment groups at any time during the whole study period. 99Tc-MDP significantly increased bone formation markers of osteocalcin at 6 and 12 months (P all < 0.05), PINP at 12 months (P = 0.001), and bone resorption markers of β-CTX at 6 and 12 months (p < 0.05) as compared with the alendronate treated group. No adverse event was observed in the 99Tc-MDP treatment group compared with alendronate (P = 0.014). Conclusion: 99Tc-MDP was as efficacious as alendronate in the improvement of lumbar BMD for DTC patients with OS under TSH stimulation. 99Tc-MDP was shown to be safe and improved patients' QOL.
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