Inhalable liposomal hydroxychloroquine (TLC19) may provide clinical benefit and serve as a potential treatment for COVID-19: Taiwan & California

Source: BioSpace

SOUTH SAN FRANCISCO, Calif. and TAIPEI, Taiwan, Nov. 03, 2020 (GLOBE NEWSWIRE) — TLC (Nasdaq: TLC, TWO: 4152), a clinical-stage specialty pharmaceutical company developing novel nanomedicines to target areas of unmet medical need, today announced that the manuscript describing how inhalable liposomal hydroxychloroquine (TLC19) may provide clinical benefit and serve as a potential treatment for COVID-19 has been peer-reviewed and accepted by Clinical and Translational Science(CTS) journal. CTS highlights original research that helps bridge laboratory discoveries with the diagnosis and treatment of human disease and is an official journal of the American Society of Clinical Pharmacology and Therapeutics (ASCPT).

“We are honored to be sharing this peer-reviewed manuscript in an internationally acclaimed journal,” said George Yeh, President of TLC. “CTS has a collection of clinical pharmacology research from various potential treatments such as remdesivir, favipiravir, and lopinavir/ritonavir. Acknowledgment of our work by CTS further fortifies the soundness of our strategy of preferential delivery to the lungs. In these unprecedented times, we wish to do all that we can to help, and we openly welcome partnerships to re-formulate drugs with high potency against SARS-CoV-2 virus but low bioavailability utilizing our proprietary inhalable liposomal formulation in order to create more potential remedies to address this global pandemic.”

The accepted manuscript titled “A Strategy to Treat COVID-19 Disease with Targeted Delivery of Inhalable Liposomal Hydroxychloroquine: A Pre-clinical Pharmacokinetic Study” can be found using the following link: https://www.palmerfoundation.com.au/wp-content/uploads/2020/11/cts.12923.pdf

The research, which was previously available as pre-print on bioRxiv.org, is a collaborative work by TLC in conjunction with key opinion leader in respiratory therapies – Dr. Huey-Dong Wu, Senior Pulmonologist at the Department of Integrated Diagnostics and Therapeutics at National Taiwan University Hospital – and the leading authority in infectious diseases – Dr. Yee-Chun Chen, Professor of Medicine at National Taiwan University Hospital and College of Medicine, Investigator of the National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes of Taiwan, and Board Member and Vice President of the International Society for Human and Animal Mycology (ISHAM).

“There is an unmet medical need for a therapy that is accessible and affordable for everyone affected by the COVID-19 pandemic,” said Dr. Chen. “Altering the route of administration of hydroxychloroquine from oral to inhalation substantially increases exposure in the airways and lungs while decreasing exposure in the system, and a liposomal formulation allows sustained residence of the drug in the lungs. I am happy to see these principles reflected in the results of this preclinical study and look forward to seeing more encouraging data from the clinical trials.”

A Phase I randomized, vehicle-controlled, blinded study evaluating the safety, tolerability, and pharmacokinetics of inhaled TLC19 in healthy volunteers is ongoing.

About TLC19
TLC19 is a liposomal suspension of hydroxychloroquine (HCQ) for inhalation. HCQ has shown potential in prophylaxis and/or treatment for COVID-19 in in vitro and preliminary clinical trial studies, but orally administered HCQ cannot reach therapeutic levels due to its dose-limiting toxicities.

TLC19 utilizes ~1% of the highest oral HCQ dose tested and delivers the drug directly to the airways and lungs, potentially avoiding systemic toxicities associated with oral HCQ while providing a sustained effective concentration at the primary site of infection.

TLC19 is designed to be cost-effective, easily accessible and can be self-administered with a portable nebulizer.

About TLC

TLC (NASDAQ: TLC, TWO: 4152) is a clinical-stage specialty pharmaceutical company dedicated to the research and development of a diverse, wholly owned portfolio of novel nanomedicines that maximize the potential of its proprietary lipid-assembled drug delivery platform (LipAD™), including BioSeizer® sustained release technology and NanoX™ active drug loading technology, which are versatile in the choice of active pharmaceutical ingredients and scalable in manufacturing.





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