Dataset Information

Safety and Efficacy Study of ALT-801 to Treat Progressive Metastatic Malignancies

ABSTRACT: This is a Phase 1, open-labeled, non-randomized, multi-center, competitive enrollment and dose-escalation study of ALT-801, the study drug. The purpose of this study is to evaluate the safety, determine the maximum-tolerated dose (MTD) and characterize the pharmacokinetic profile of ALT-801 in previously treated patients with progressive metastatic malignancies. ALT-801, a recombinant fusion protein with a interleukin-2 (IL-2) component, has a targeting mechanism that recognizes tumor cells with a specific tumor marker.

DISEASE(S): Lung Cancer,Melanoma,Colorectal Cancer,Bladder Cancer,Advanced Cancer,Breast Cancer,Lymphoma,Neoplasms,Ovarian Cancer,Esophagus Cancer,Colon Cancer,Head And Neck Cancer,Progressive Metastatic Malignancies,Cancer

PROVIDER: 2041748 | ecrin-mdr-crc |

REPOSITORIES: ECRIN MDR

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Project description:This a model from the article: PKPD model of interleukin-21 effects on thermoregulation in monkeys--application and evaluation of stochastic differential equations. Overgaard RV, Holford N, Rytved KA, Madsen H. Pharm Res.2007 Feb;24(2):298-309. PUBMED, Abstract: PURPOSE: To describe the pharmacodynamic effects of recombinant human interleukin-21 (IL-21) on core body temperature in cynomolgus monkeys using basic mechanisms of heat regulation. A major effort was devoted to compare the use of ordinary differential equations (ODEs) with stochastic differential equations (SDEs) in pharmacokinetic pharmacodynamic (PKPD) modelling. METHODS: A temperature model was formulated including circadian rhythm, metabolism, heat loss, and a thermoregulatory set-point. This model was formulated as a mixed-effects model based on SDEs using NONMEM. RESULTS: The effects of IL-21 were on the set-point and the circadian rhythm of metabolism. The model was able to describe a complex set of IL-21 induced phenomena, including 1) disappearance of the circadian rhythm, 2) no effect after first dose, and 3) high variability after second dose. SDEs provided a more realistic description with improved simulation properties, and further changed the model into one that could not be falsified by the autocorrelation function. CONCLUSIONS: The IL-21 induced effects on thermoregulation in cynomolgus monkeys are explained by a biologically plausible model. The quality of the model was improved by the use of SDEs. This model originates from BioModels Database: A Database of Annotated Published Models. It is copyright (c) 2005-2010 The BioModels Team.For more information see the terms of use.To cite BioModels Database, please use Le Novère N., Bornstein B., Broicher A., Courtot M., Donizelli M., Dharuri H., Li L., Sauro H., Schilstra M., Shapiro B., Snoep J.L., Hucka M. (2006) BioModels Database: A Free, Centralized Database of Curated, Published, Quantitative Kinetic Models of Biochemical and Cellular Systems Nucleic Acids Res., 34: D689-D691.

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Safety and Efficacy Study of ALT-801 to Treat Progressive Metastatic Malignancies

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