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Yamada M, Miller DM, Lowe M, Rowe C, Wood D, Soyer HP, Byrnes-Blake K, Parrish-Novak J, Ishak L, Olson JM, Brandt G, Griffin P, Spelman L, Prow TW. A first-in-human study of BLZ-100 (tozuleristide) demonstrates tolerability and safety in skin cancer patients. Contemp Clin Trials Commun 2021; 23:100830. [PMID: 34401600 PMCID: PMC8355837 DOI: 10.1016/j.conctc.2021.100830] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 07/14/2021] [Accepted: 08/03/2021] [Indexed: 12/23/2022] Open
Abstract
BLZ-100 (tozuleristide) is an intraoperative fluorescent imaging agent that selectively detects malignant tissue and can be used in real time to guide tumor resection. The purpose of this study was to assess the safety, tolerability, and pharmacokinetics of BLZ-100 and to explore the pharmacodynamics of fluorescence imaging of skin tumors. In this first-in-human study, BLZ-100 was administered intravenously to 21 adult patients 2 days before excising known or suspected skin cancers. Doses were 1, 3, 6, 12, and 18 mg, with 3-6 patients/cohort. Fluorescence imaging was conducted before and up to 48 h after dosing. BLZ-100 was well tolerated. There were no serious adverse events, deaths, or discontinuations due to adverse events, and no maximum tolerated dose (MTD) was identified. Headache (n = 2) and nausea (n = 2) were the only BLZ-100 treatment-related adverse events reported for >1 patient. Median time to maximal serum concentration was <0.5 h. Exposure based on maximal serum concentrations increased in a greater than dose-proportional manner. For intermediate dose-levels (3-12 mg), 4 of 5 basal cell carcinomas and 4 of 4 melanomas were considered positive for BLZ-100 fluorescence. BLZ-100 was well tolerated at all dose levels tested and these results support further clinical testing of this imaging agent in surgical oncology settings. Clinicaltrials.gov: NCT02097875.
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Affiliation(s)
- Miko Yamada
- The University of Queensland Diamantina Institute, The University of Queensland, Dermatology Research Centre, Brisbane, Queensland, Australia
| | - Dennis M Miller
- Blaze Bioscience, Inc., Seattle, WA, USA.,Blaze Bioscience Australia Pty Ltd, Caulfield North, Victoria, Australia
| | - Melinda Lowe
- Medicines Development Limited, Southbank, Victoria, Australia
| | - Casey Rowe
- Veracity Clinical Research, Brisbane, Queensland, Australia.,Q-Pharm Pty Ltd, QIMR Berghofer Medical Research Institute, And Mater Hospital and Mater Research, Queensland, Australia
| | | | - H Peter Soyer
- The University of Queensland Diamantina Institute, The University of Queensland, Dermatology Research Centre, Brisbane, Queensland, Australia
| | | | | | | | - James M Olson
- Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | | | - Paul Griffin
- Q-Pharm Pty Ltd, QIMR Berghofer Medical Research Institute, And Mater Hospital and Mater Research, Queensland, Australia
| | - Lynda Spelman
- Veracity Clinical Research, Brisbane, Queensland, Australia
| | - Tarl W Prow
- The University of Queensland Diamantina Institute, The University of Queensland, Dermatology Research Centre, Brisbane, Queensland, Australia
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