|
KMID : 0391020060140020116
|
|
Journal of Korean Society for Clinical Pharmacology and Therapeutics
2006 Volume.14 No. 2 p.116 ~ p.127
|
|
|
Pharmacokinetic and Pharmacodynamic Characteristics of Ibandronate in Healthy Subjects
|
|
Tae Yu-Mi
Cho Joo-Youn
Jang In-Jin
Shin Sang-Goo
Yu Kyung-Sang
Chung Jae-Yong
Kim Jung-Ryul
Lim Kyoung-Soo
Kim Jae-Woo
Kim Bo-Hyung
|
|
|
Abstract
|
|
|
Background: Ibandronate is a nitrogen-containing bisphosphonate and used for the treatment of hypercalcemia of malignancy and postmenopausal osteoporosis as a potent Inhibitor of osteoclast-mediated bone resorption. This study was performed to evaluate pharmacokinetic (PK) and pharmacodynamic (PD) characteristics of ibandronate after a single intravenous (iv) infusion in healthy subjects.
Methods: The study was conducted as a double blinded, randomized, placebo controlled, parallel group study in twenty-six healthy Korean subjects (13 males and 13 females). Subjects were randomized into one of three treatment groups of 2 mg, 6 mg, or placebo, with 10, 10, and 6 subjects in each group, respectively. Blood and urine samples for PK assessments were collected till 24 hours after the start of a 60 minute iv infusion. For PD assessments, CTX (Type I Collagen-linked C-telopeptide) and NTX (Type I Collagen-linked N-telopeptide) were measured in both serum and urine until 4 days after the infusion.
Results: The area under the concentration-time curves from time zero to infinity () were for the 2 mg group, and for the 6 mg group. The values of mean clearance were 6.1 L/h and 6.9 L/h in the 2 mg and 6 mg group, respectively. Four days after the infusion, urinary CTX was decreased by 71.5% (2 mg) and 93.5% (6 mg group) from baseline (both P < .001). Other PD parameters were also significantly decreased in active treatment groups compared with the placebo group.
Conclusions: Pharmacokinetic parameters exhibited linear properties regrding dose. Pharmacodynamic parameters as markers of bone turnover were significanly decreased from baseline in the active treatment groups.
|
|
|
KEYWORD
|
|
|
Ibandronate, Pharmacokinetic, Pharmacodynamic
|
|
|
FullTexts / Linksout information
|
|
|
|
|
Listed journal information
|
|
 
|
|