NRx Pharmaceuticals | August 30, 2021
NRx Pharmaceuticals announced an additional finding in its phase 2b/3 clinical trial investigating ZYESAMI™ (aviptadil) for the treatment of patients with acute Respiratory Failure due to Critical COVID-19. Previously announced results have focused on survival and recovery from respiratory failure at 60 days, and ZYESAMI's apparent role in preventing rise in the inflammatory cytokine IL-6, known as "Cytokine Storm."
NRx's new analysis shows that patients treated with ZYESAMI demonstrated improvement in blood oxygen, indicative of improved lung function, within a day of starting treatment. The average difference in Respiratory Distress Ratio between those treated with aviptadil and placebo was both clinically meaningful and statistically significant. Moreover, the difference is comparable to that reported a year ago from an open label study at Houston Methodist Hospital by Dr. J Georges Yousef.
"With the conclusion of the analysis of primary and secondary endpoints, we are able to focus on prespecified endpoints that confirm mechanism of action," said Prof Jonathan Javitt, MD, MPH, Chairman and CEO of NRx. "COVID-19 attacks the cells that line the lung in a manner that prevents them from transmitting oxygen to the body. It is this respiratory failure that starts the lethal process of COVID," This latest analysis provides confirmatory evidence that aviptadil improves the lung's ability to transmit oxygen within a day of initiating treatment. The benefit was seen across all patients, all baseline severities, and all types of hospitals. We believe this new finding illustrates ZYESAMI's mechanism of action in a placebo-controlled trial and supports our application for Breakthrough Therapy Designation to the FDA."
Prior data regarding reduced respiratory distress were reported by Dr. J. Georges Youssef, Head of Academic Pulmonary Medicine at Houston Methodist Hospital one year ago. Dr. Youssef and colleagues reported the results in 21 patients treated with ZYESAMI, compared to 24 patients who received best-available standard of care.
This latest analysis also supports NRx's application for Breakthrough Therapy Designation (BTD) to the FDA for ZYESAMI. BTD is a process designed to expedite the development and review of medicines intended to treat a serious condition and is supported by preliminary clinical evidence showing the drug may demonstrate substantial improvement over available therapies on a clinically significant endpoint(s). https://www.fda.gov/patients/fast-track-breakthrough-therapy-accelerated-approval-priority-review/breakthrough-therapy
About ZYESAMI™/VIP in COVID-19
ZYESAMI (aviptadil) is a synthetic form of Vasoactive Intestinal Polypeptide (VIP) first discovered by the late Prof. Sami Said in 1970, and ZYESAMI™ is named in his honor. Although primarily concentrated in the lung, it was first purified from the intestinal tract. VIP binds specifically to the alveolar type II cell (ATII) in the air sac (alveolus) of the lung, where it has been shown have potent anti-inflammatory/anti-cytokine activity in animal models of respiratory distress, acute lung injury, and inflammation. Most importantly, VIP stimulates ATII cells to make the surfactant that must coat the lining of the lungs in order for them to exchange oxygen with the blood. Loss of surfactant causes respiratory failure and alveolar collapse, which are hallmarks of COVID-19.
About NRx Pharmaceuticals
NRx Pharmaceuticals draws upon more than 300 years of collective, scientific and drug-development experience to bring improved health to patients. Its investigational product, ZYESAMI™ (aviptadil) for patients with COVID-19, has been granted Fast Track designation by the US Food and Drug Administration (FDA) and is currently undergoing phase 3 trials funded by the US National Institutes of Health, the Biomedical Advanced Research and Development Authority, a part of the US Department of Health and Human Services, and the Medical Countermeasures program, part of the US Department of Defense. The FDA has additionally granted Breakthrough Therapy Designation, a Special Protocol Agreement, and a Biomarker Letter of Support to NRx for NRX-101, an investigational medicine to treat suicidal bipolar depression. NRX-101 is currently in Phase 3 trials, with readouts expected in 2022. NRx currently has the BriLife for COVID-19 in phase 3 trials, and holds the exclusive worldwide license to commercialize the vaccine. The BriLife vaccine was first developed by the Israel Institute for Biological Research.
Xeris Pharmaceuticals, Inc. | September 01, 2021
Xeris Pharmaceuticals, Inc., a specialty pharmaceutical company leveraging its novel formulation technology platforms to develop and commercialize ready-to-use injectable drug formulations, today announced that the company has completed enrollment and successfully dosed all participants in a Phase 1 study of levothyroxine (XP-8121) to evaluate the pharmacokinetics, safety and tolerability, and potential for weekly dosing of the investigational, novel, subcutaneous (SC) injection for the treatment of hypothyroidism.
XP-8121 is a novel formulation that could potentially mitigate many of the challenges associated with oral formulations, such as identification of an ideal dose due to absorption variation and medication adherence for patients who have difficulty maintaining a stable, therapeutic serum level. Preclinical studies of SC XP-8121 showed a sustained plasma exposure profile and similar maximum plasma concentration (Cmax) when compared with equivalent doses of the oral formulation.
The Phase 1 clinical study of levothyroxine (XP-8121) is a single ascending dose crossover design in 30 healthy participants to compare matching doses of oral levothyroxine (Synthroid®) and subcutaneous (SC) XP-8121. The primary endpoints of the study are to characterize the absorption and elimination kinetics of XP-8121 and compare bioavailability of XP-8121 to oral levothyroxine. Secondary endpoints are safety and tolerability of XP-8121. The study is being conducted in partnership with Dr. Danielle Armas and Celerion, a leading contract research organization with extensive experience performing first-in-human studies.
“The potential for a once weekly subcutaneous injection of levothyroxine would represent a promising novel approach in treating patients with hypothyroidism. Drug non-compliance, resistant hypothyroidism, and limited GI absorption are some of the major reasons for treatment failure or suboptimal treatment with oral levothyroxine. These challenges could be mitigated by XP-8121 and translate into the long-term health benefit of achieving a euthyroid state for patients,” said Dr. Armas, Senior Principal Investigator, Celerion.
“Because our levothyroxine formulation enables a small volume SC injection, as an injectable maintenance therapy, it may facilitate less frequent dosing. This may provide clinical advantages over the established oral daily route, by providing predictable bioavailability, comparable safety, and ease of use,” said Dr. Ken Johnson, Xeris’ Senior Vice President of Global Development and Medical Affairs.
About Levothyroxine and Hypothyroidism.
The thyroid gland is responsible for the synthesis, storage, and release of metabolic hormones including thyroxine (T4) and triiodothyronine (T3) [Colucci et al, 2013]. These hormones are crucial in the regulation of critical metabolic processes and are vital for normal growth and development during fetal life, infancy, and childhood. Therapeutically, levothyroxine is administered when the body is deficient in the endogenous hormone. The goal of therapy is restoration of the euthyroid state which can reverse the clinical manifestations of hypothyroidism and significantly improve quality of life [Winther et al, 2016]. The treatment of choice for correction of hypothyroidism is levothyroxine, which is the mainstay of thyroid hormone replacement therapy. It is one of the most widely prescribed drug products in the United States, but the complexity of maintaining biochemical and clinical euthyroidism in patients undergoing treatment with oral levothyroxine cannot be underestimated. It has been reported that nearly 40% of patients undergoing treatment with oral levothyroxine are either over- or under-treated [Laurent et al, 2018] due to factors that include, but are not limited to, drug formulation, use of the drug with food, adherence to the drug, use of concomitant medications, and pre-existing medical conditions. Many patients failing to reach target TSH levels are generally managed by simply increasing their levothyroxine daily dose [Chiovato et al, 2019]. However, levothyroxine is a drug with a narrow therapeutic index [Vita et al, 2014], meaning that relatively small deviations from the proper dose can cause a clinically meaningful shift in pharmacological effects when administered to a patient; thus, the titration of levothyroxine oral drug may be a tailored and incremental process.
About Xeris Pharmaceuticals, Inc.
Xeris is a pharmaceutical company delivering innovative solutions to simplify the experience of administering important therapies that people rely on every day around the world. With a novel technology platform that enables ready-to-use, room-temperature stable formulations of injectable drug, the company is advancing a portfolio of solutions in various therapeutic categories, including its first commercial product, Gvoke® in the U.S. Its proprietary XeriSol™ and XeriJect™ formulation technologies have the potential to offer distinct advantages over conventional product formulations, including eliminating the need for reconstitution, enabling long-term, room-temperature stability, significantly reducing injection volume, and eliminating the requirement for intravenous (IV) infusion. With Xeris’ technology, new product formulations are designed to be easier to use by patients, caregivers, and health practitioners and help reduce costs for payers and the healthcare system. Xeris is headquartered in Chicago, IL.
CNS Pharmaceuticals | September 03, 2020
CNS Pharmaceuticals, Inc. (NASDAQ: CNSP) ("CNS" or the "Company"), a biopharmaceutical company specializing in the development of novel treatments for primary and metastatic cancers of the central nervous system, today provides an update on progress for the U.S. manufacturing of Berubicin, the Company's lead drug candidate, in preparation for upcoming clinical trials. As previously announced, the Company implemented a dual-track drug product manufacturing strategy and engaged U.S.-based Pharmaceutics International, Inc. ("Pii") and Italy-based BSP Pharmaceuticals S.p.A. ("BSP") for the production of Berubicin. By engaging two separate manufacturers on two separate continents, CNS expects to mitigate COVID-19-related delay risks, diversify its supply chain and provide for localized availability of Berubicin.