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Novel biomarker data in ALS patients correlates to rate of progression and survival
Coya Therapeutics, Inc. (NASDAQ:COYA) ("Coya" or the "Company"), a clinical-stage biotechnology company developing biologics intended to enhance regulatory T cell (Treg) function, announces that Dr. Stanley Appel, M.D., Chairman of Coya's Scientific Advisory Board, will present data on its novel oxidative stress biomarker candidate from a large cohort of Amyotrophic Lateral Sclerosis (ALS) patients at the upcoming Society of Neuroimmune Pharmacology Conference being held on March 10-13, 2024 in Charleston, SC. Dr. Appel's presentation will be on Tuesday, March 12th, 2024, and is titled Immunomodulatory Therapy in Neurodegenerative Disease: Lessons from ALS.
Dr. Fred Grossman, Coya's Chief Medical Officer, stated: "Neurofilament Light Chain (NFL), despite its lack of specificity for ALS, is currently the only robust and validated biomarker used for diagnostic and prognostic performance in symptomatic ALS patients. Less than a year ago, the FDA approved Tofersen for the treatment of ALS associated with a mutation in the superoxide dismutase gene based on its ability to lower NFL blood levels. We believe that our preliminary novel biomarker data may facilitate new opportunities to better predict patient survival, monitor disease progression, and track efficacy of therapies and will be an important part of the analysis in the upcoming Ph. 2 COYA 302 ALS study."
Investors can register for The Society of Neuroimmune Pharmacology Conference here.
About COYA 302
COYA 302 is an investigational and proprietary biologic combination therapy with a dual immunomodulatory mechanism of action intended to enhance the anti-inflammatory function of regulatory T cells (Tregs) and suppress the inflammation produced by activated monocytes and macrophages. COYA 302 is comprised of proprietary low dose interleukin-2 (LD IL-2) and CTLA-4 Ig and is being developed for subcutaneous administration for the treatment of patients with ALS, FTD, and PD. These mechanisms may have additive or synergistic effects.
In February of 2023, Coya announced results from a proof-of-concept, open-label clinical study evaluating commercially available LD IL-2 and CTLA-4 Ig in a small cohort of patients with ALS conducted at the Houston Methodist Research Institute (Houston, Texas) by Stanley Appel, M.D., Jason Thonhoff, M.D., Ph.D., and David Beers, Ph.D. This study was the first-of-its-kind evaluating this dual-mechanism immunotherapy for the treatment of ALS. Patients in the study received investigational treatment for 48 consecutive weeks and were evaluated for safety and tolerability, Treg function, serum biomarkers of oxidative stress and inflammation, and clinical functioning as measured by the ALSFRS-R scale.
During the 48-week treatment period, the therapy was well tolerated. The most common adverse event was mild injection-site reactions. No patient discontinued the study, and no deaths or other serious adverse events were reported.
Patients' disease progression was measured using the ALSFRS-R scale, a validated rating tool for monitoring the progression of disability in patients with ALS. The mean (±SD) ALSFRS-R scores at week 24 (33.75 ±3.3) and week 48 (32 ±7.8) after initiation of treatment were not statistically different compared to the ALSFRS-R score at baseline (33.5 ±5.9), suggesting significant amelioration in the progression of the disease over the 48-week treatment period.
Treg suppressive function, expressed as percentage of inhibition of proinflammatory T cell proliferation, showed a statistically significant increase over the course of the treatment period and was significantly reduced at the end of the 8-week washout post-treatment period. Treg suppressive function at 24 weeks (79.9 ±9.6) and 48 weeks (89.5 ±4.1) were significantly higher compared to baseline (62.1 ±8.1) (p<0.01), suggesting enhanced and durable Treg suppressive function over the course of treatment. In contrast, Treg suppressive function (mean ±SD) was significantly decreased at the end of the 8-week washout period compared to end-of-treatment at week 48 (70.3 ±8.1 vs. 89.5 ±4.1, p <0.05).
The study also evaluated serum biomarkers of inflammation, oxidative stress, and lipid peroxides. The available data up to 16 weeks after initiation of treatment suggest a decrease in these biomarker levels, which is consistent with the observed enhancement of Treg function. The evaluation of the full biomarker data is ongoing.
COYA 302 is an investigational product not yet approved by the FDA or any other regulatory agency.
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