REFERENCES
T. Sato, M. Kanke, H. G. Schroeder, and P. P. DeLuca. Porous biodegradable microspheres for controlled drug delivery. I. Assessment of processing conditions and solvent removal techniques. Pharm. Res. 5:21–30 (1988).
K. C. Lee, E. E. Soltis, P. S. Newman, K. W. Burton, R. C. Mehta, and P. P. DeLuca. In vivo assessment of salmon calcitonin sustained release from biodegradable microspheres. J. Control. Release 17:199–206 (1990).
G. Hausberger and P. P. DeLuca. Characterization of biodegradable poly(D,L-lactide-co-glycolide) polymers and microspheres. J. Pharm. Biomed. Anal. 13:747–760 (1995).
R. Jeyanthi, R. C. Mehta, B. C. Thanoo, and P. P. DeLuca. Effect of processing parameters on the properties of peptide-containing PLGA. J. Microencapsul. 14:163–174 (1997).
D. A. Puleo, W. W. Huh, S. S. Duggirala, and P. P. DeLuca. In vitro cellular responses to bioerodible particles loaded with recombinant human bone morphogenetic protein-2. J. Biomed. Mater. Res. 41:104–110 (1998).
Y. Capan, B. H. Woo, S. Gebrekidan, S. Ahmed, and P. P. De-Luca. Preparation and characterization of poly (D,L-lactide-coglycolide) microspheres for controlled release of poly(L-lysine) complexed plasmid DNA. Pharm. Res. 16:509–513 (1999).
Y. Capan, B. H. Woo, S. Gebrekidan, S. Ahmed, and P. P. De-Luca. Influence of formulation parameters on the characteristics of poly(D, L-lactide-co-glycolide) microspheres containing poly(L-lysine) complexed plasmid. J. Control. Release 60:279–286 (1999).
S. Gebrekidan, B. H. Woo, and P. P. DeLuca. Formulation and in vitro transfection efficiency of poly(D, L-lactide-co-glycolide) microspheres containing plasmid DNA for gene delivery. AAPS PharmSciTech. 1:28 (2000) (http://www.pharmscitech.com).
B. H. Woo, J. W. Kostanski, S. Gebrekidan, B. A. Dani, B. C. Thanoo, and P. P. DeLuca. Preparation, characterization and in vivo evaluation of 120-day poly(D,L-lactide) leuprolide microspheres. J. Control. Release 75:307–315 (2001).
K. W. Burton, M. Shameem, B. C. Thanoo, and P. P. DeLuca. Extended release peptide delivery systems through the use of PLGA microsphere combinations. J. Biomater. Sci. Polym. Ed. 11:715–729 (2000).
H. B. Ravivarapu, H. Lee, and P. P. DeLuca. Enhancing initial release of peptide from poly(d,l-lactide-co-glycolide) (PLGA) microspheres by addition of a porosigen and increasing drug load. Pharm. Dev. Technol. 5:287–296 (2000).
J. Trachtenberg. The treatment of metastatic prostatic cancer with a potent luteinizing hormone releasing hormone analogue. J. Urol. 129:1149–1152 (1983).
N. J. Wojciechowski. Leuprolide: a gonadotropin-releasing hormone analogue for the palliative treatment of prostatic cancer. Drug. Intell. Clin. Pharm. 20:746–751 (1986).
J. L. Cleland. Protein delivery from biodegradable microspheres. Pharm. Biotechnol. 10:1–43 (1997).
H. Okada, Y. Ogawa, and T. Yashiki. Prolonged release microcapsules and their production. US Patent 4,652,441 (1987).
H. Okada, T. Heya, Y. Ogawa, H. Toguchi, and T. Shimamoto. Sustained pharmacological activities in rats following single and repeated administration of once-a-month injectable microspheres of leuprolide acetate. Pharm. Res. 8:584–587 (1991).
H. Okada, Y. Inoue, T. Heya, H. Ueno, Y. Ogawa, and H. Toguchi. Pharmacokinetics of once-a-month injectable microspheres of leuprolide acetate. Pharm. Res. 8:787–791 (1991).
H. Okada, Y. Doken, Y. Ogawa, and H. Toguchi. Preparation of three-month depot injectable microspheres of leuprorelin acetate using biodegradable polymers. Pharm. Res. 11:1143–1147 (1994).
H. Okada, Y. Doken, Y. Ogawa, and H. Toguchi. Sustained suppression of the pituitary-gonadal axis by leuprorelin three-month depot microspheres in rats and dogs. Pharm. Res. 11:1199–1203 (1994).
B. C. Thanoo and J. Murtagh. Continuous microsphere process. US Patent 5,945,126 (1999).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Woo, B.H., Na, KH., Dani, B.A. et al. In Vitro Characterization and in Vivo Testosterone Suppression of 6-Month Release Poly(D,L-Lactide) Leuprolide Microspheres. Pharm Res 19, 546–550 (2002). https://doi.org/10.1023/A:1015168301339
Issue Date:
DOI: https://doi.org/10.1023/A:1015168301339