Phase 1 study to evaluate safety, tolerability and pharmacokinetics of a novel intra-tympanic administered thiosulfate to prevent cisplatin-induced hearing loss in cancer patients
| Autor: | Pete Weber, Fuxin Shi, John Soglia, John Keilty, Heather Wolff, Ryan McCarthy, Jason Kropp, Vissia Viglietta, Yong Ren, Hu Qi-Ying |
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| Rok vydání: | 2020 |
| Předmět: |
Adult
Male Side effect medicine.medical_treatment Thiosulfates Antineoplastic Agents Sodium thiosulfate Young Adult 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine Double-Blind Method Ototoxicity Pharmacokinetics Phase I Studies Neoplasms Humans Medicine Pharmacology (medical) 030223 otorhinolaryngology Adverse effect Pharmacology Cisplatin Thiosulfate Chemotherapy Intratympanic Injection Intratympanic business.industry Hearing loss Middle Aged medicine.disease Healthy Volunteers Oncology chemistry 030220 oncology & carcinogenesis Anesthesia Female business medicine.drug |
| Zdroj: | Investigational New Drugs |
| ISSN: | 1573-0646 0167-6997 |
| DOI: | 10.1007/s10637-020-00918-1 |
| Popis: | SummaryCisplatin is a widely used chemotherapy for the treatment of certain solid tumors. Ototoxicity and subsequent permanent hearing loss remain a serious dose-limiting side effect associated with cisplatin treatment. To date, no therapies have been approved to prevent or treat cisplatin-induced hearing loss (CIHL). Sodium thiosulfate effectively inactivates cisplatin through covalent binding and may provide protection against cisplatin-induced ototoxicity. DB-020 is being developed as a novel formulation of sodium thiosulfate pentahydrate in 1% sodium hyaluronate for intratympanic injection (IT), enabling the delivery of high concentrations of thiosulfate into the cochlea prior to cisplatin administration. In the DB-020-002 phase 1a single-ascending dose study, healthy volunteers were enrolled into 5 cohorts to receive different doses of DB-020 via IT injection. Cohorts 1–4 received unilateral injections while Cohort 5 received bilateral injections. Plasma thiosulfate pharmacokinetics was measured, and safety and audiometric data were collected throughout the study. This study has demonstrated that intratympanic administration of DB-020 results in nominal systemic increases in thiosulfate levels, hence it should not compromise cisplatin anti-tumor efficacy. Furthermore, DB-020 was safe and well tolerated with most adverse events reported as transient, of mild-to-moderate severity and related to the IT administration procedure. These results support the design and execution of the ongoing proof-of-concept study, DB-020-002, to assess otoprotection using DB-020 in cancer patients receiving cisplatin without negatively impacting cisplatin anti-tumor efficacy. |
| Databáze: | OpenAIRE |
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