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Petrylak DP, Eigl BJ, George S, Heath EI, Hotte SJ, Chism DD, Nabell LM, Picus J, Cheng SY, Appleman LJ, Sonpavde GP, Morgans AK, Pourhosseini P, Wu R, Standley L, Croitoru R, Yu EY. Phase I Dose-Escalation Study of the Safety and Pharmacokinetics of AGS15E Monotherapy in Patients with Metastatic Urothelial Carcinoma. Clin Cancer Res 2024; 30:63-73. [PMID: 37861407 PMCID: PMC10767306 DOI: 10.1158/1078-0432.ccr-22-3627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 07/10/2023] [Accepted: 10/17/2023] [Indexed: 10/21/2023]
Abstract
PURPOSE Effective treatment of locally advanced or metastatic urothelial carcinoma (mUC) remains an unmet need. Antibody-drug conjugates (ADC) providing targeted drug delivery have shown antitumor activity in this setting. AGS15E is an investigational ADC that delivers the cytotoxic drug monomethyl auristatin E to cells expressing SLITRK6, a UC-associated antigen. PATIENTS AND METHODS This was a multicenter, single-arm, phase I dose-escalation and expansion trial of AGS15E in patients with mUC (NCT01963052). During dose escalation, AGS15E was administered intravenously at six levels (0.10, 0.25, 0.50, 0.75, 1.00, 1.25 mg/kg), employing a continual reassessment method to determine dose-limiting toxicities (DLT) and the recommended phase II dose (RP2D) for the dose-expansion cohort. The primary objective was to evaluate the safety and pharmacokinetics of AGS15E in patients with and without prior chemotherapy and with prior checkpoint inhibitor (CPI) therapy. Best overall response was also examined. RESULTS Ninety-three patients were recruited, including 33 patients previously treated with CPI. The most common treatment-emergent adverse events were fatigue (54.8%), nausea (37.6%), and decreased appetite (35.5%). Peripheral neuropathy and ocular toxicities occurred at doses of ≥0.75 mg/kg. AGS15E increased in a dose-proportional manner after single- and multiple-dose administration; accumulation was low. Five DLT occurred from 0.50 to 1.25 mg/kg. The RP2D was assessed at 1.00 mg/kg; the objective response rate (ORR) was 35.7% at this dose level. The ORR in the total population and CPI-exposed subgroup were 18.3% and 27.3%, respectively. CONCLUSIONS DLT with AGS15E were observed at 0.75, 1.00, and 1.25 mg/kg, with an RP2D of 1.00 mg/kg being determined.
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Affiliation(s)
| | | | - Saby George
- Roswell Park Cancer Institute, Buffalo, New York
| | | | | | | | | | - Joel Picus
- Siteman Cancer Center, Washington University School of Medicine, St. Louis, Missouri
| | | | | | - Guru P. Sonpavde
- Advent Health Cancer Institute, Orlando, Florida
- University of Central Florida, Orlando, Florida
| | | | | | - Ruishan Wu
- Astellas Pharma Global Development, Inc., Northbrook, Illinois
| | - Laura Standley
- Astellas Pharma Global Development, Inc., Northbrook, Illinois
| | - Ruslan Croitoru
- Astellas Pharma Global Development, Inc., Northbrook, Illinois
| | - Evan Y. Yu
- Division of Medical Oncology, Seattle Cancer Care Alliance, Seattle, Washington
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Yogaratnam D, Carey KM, Coppenrath V, Dawson A, Harris M, LaMothe AB, Pourhosseini P, Lynch AM. Drugs that act on the respiratory tract. Side Effects of Drugs Annual 2021. [PMCID: PMC8526131 DOI: 10.1016/bs.seda.2021.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
No published data from this past year provide new insight on the safety and tolerability of corticosteroids, β2-adrenoreceptor agonists, or phosphodiesterase inhibitors as they pertain to respiratory diseases. While systemic corticosteroids have become a valuable therapeutic agent in treating Covid-19 pneumonia, there have been no new or unexpected adverse events reported within this context. Reports evaluating the psychiatric and vascular side effect profile of the leukotriene modifier, montelukast, are described below. For inhaled anticholinergic drugs, meta-analyses describe the cardiovascular safety of these agents, as well as the safety of tiotropium in pediatric patients. A case of mydriasis associated with ipratropium therapy is described. In addition, the safety of umeclidinium as part of a triple-drug inhaler was evaluated in a large randomized clinical trial. For the antifibrotic drugs nintedanib and pirfenidone, there are a number of reports describing the safety of these drugs in specific populations, and there are a number of case reports describing unique side effects. Lastly, there are new reports describing the safety of monoclonal antibody therapy for moderate to severe asthma, as well as a few case reports describing rare adverse events associated with benralizumab, dupilumab, mepolizumab, omalizumab, and reslizumab.
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