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Efficacy of an echo contrast agent, SH/TA-508, in color doppler sonography of mass lesions in urology

, : Efficacy of an echo contrast agent, SH/TA-508, in color doppler sonography of mass lesions in urology. Urologic Oncology 1(5): 215-222

We performed a clinical phase III study with a galactosebased ecoo contrast agent, SH/TA-508, to evaluate its efficacy, safety, and usefulness for mass lesions in urology. SH/TA-508 was prepared as a suspension containing stabilized micro-air bubbles by adding water for injection just before use. SH/TA-508 was administered into the antecubital vein at an initial dose of 300 mg/ml × 5 ml followed by higher doses of 400 mg/ml × 4 ml, 300 mg/ ml × 10 ml or 400 mg/ml × 8 ml when a sufficient effect was not obtained. Efficacy was evaluated by color Doppler signal enhancement, the duration of blood flow signal enhancement, and improvement of diagnostic capacity. Fifty-nine patients with mass lesions in the kidney, prostate, testis, adrenal gland, and bladder were enrolled in the study. Up to the third dose the cumulative efficacy rates (≥2+) of color Doppler signal enhancement and duration of blood flow signal enhancement were 92% and 87%, respectively. Consequently, diagnostic capacity in 76% of the patients was remarkably improved. A light transient angialgia occurred in one patient but no other clinically significant changes were observed. It was confirmed that SH/TA-508 is a safe echo contrast agent that offers satisfactory color Doppler signal enhancement in the urologic organs mentioned above.


PMID: 21224121

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