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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Schluep, Thomas Zuckerman, Jonathan E. Eliasof, Scott Wiley, Devin T. Peters, Christian G. Cole, Roderic O. Davis, Mark E. Chao, Joseph Hwang, Jungyeon Han, Han Lin, James Case, Roy I. Yen, Yun Lazarus, Douglas |
| Description | Author Affiliation: Eliasof S ( Cerulean Pharma, Cambridge, MA 02139.); |
| Abstract | Nanoparticles are currently being investigated in a number of human clinical trials. As information on how nanoparticles function in humans is difficult to obtain, animal studies that can be correlative to human behavior are needed to provide guidance for human clinical trials. Here, we report correlative studies on animals and humans for CRLX101, a 20- to 30-nm-diameter, multifunctional, polymeric nanoparticle containing camptothecin (CPT). CRLX101 is currently in phase 2 clinical trials, and human data from several of the clinical investigations are compared with results from multispecies animal studies. The pharmacokinetics of polymer-conjugated CPT (indicative of the CRLX101 nanoparticles) in mice, rats, dogs, and humans reveal that the area under the curve scales linearly with milligrams of CPT per square meter for all species. Plasma concentrations of unconjugated CPT released from CRLX101 in animals and humans are consistent with each other after accounting for differences in serum albumin binding of CPT. Urinary excretion of polymer-conjugated CPT occurs primarily within the initial 24 h after dosing in animals and humans. The urinary excretion dynamics of polymer-conjugated and unconjugated CPT appear similar between animals and humans. CRLX101 accumulates into solid tumors and releases CPT over a period of several days to give inhibition of its target in animal xenograft models of cancer and in the tumors of humans. Taken in total, the evidence provided from animal models on the CRLX101 mechanism of action suggests that the behavior of CRLX101 in animals is translatable to humans. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 37 |
| Volume Number | 110 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 2013-09-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Camptothecin Administration & Dosage Cyclodextrins Nanoconjugates Adenocarcinoma Drug Therapy Metabolism Animals Antineoplastic Agents, Phytogenic Pharmacokinetics Therapeutic Use Area Under Curve Cell Line, Tumor Clinical Trials As Topic Drug Delivery Systems Mice Mice, Nude Chemistry Stomach Neoplasms Translational Medical Research Research Support, N.I.H., Extramural Research Support, Non-U.S. Gov't Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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