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Annovis Bio, Inc., a clinical stage drug platform company, develops drugs to treat neurodegeneration. The company's lead product candidate is Buntanetap, which is in Phase 3 clinical trials for the treatment of Alzheimer's disease (AD), Parkinson's disease, and other chronic neurodegenerative diseases. It is also developing ANVS405 for protecting the brain after traumatic brain injury and/or stroke; and ANVS301, which is in Phase I clinical trials to increase cognitive capability in later stages of AD and dementia. The company was incorporated in 2008 and is based in Berwyn, Pennsylvania.

Generex Biotechnology Corporation, through its subsidiaries, engages in the administration of formulations of large molecule drugs to the oral cavity using a hand-held aerosol applicator in Canada and the United States. It offers Generex Oral-lyn, an oral insulin product. The company is also developing AE37, a synthetic peptide vaccine, which has completed Phase IIb clinical trial to stimulate a potent and specific immune response against tumors expressing the HER-2/neu oncogene in patients with breast cancer and prostate cancer. In addition, it develops, manufactures, and distributes rapid point-of-care in-vitro medical diagnostics for infectious diseases, such as human immunodeficiency virus, tuberculosis, malaria, hepatitis B, hepatitis C, syphilis, and others; and test kits and cassettes for testing infectious diseases, as well as Excellagen, a wound conforming gel. Further, the company is developing immunotherapeutic products and vaccines; and extracellular matrix hydrogel solution, a tissue engineered therapy for the treatment of Ulcerative Colitis. Additionally, it manufactures and sells foot and ankle surgical kits that include plates, screws, and tools; and distributes surgical supplies, orthopedic implants, artificial joints, and biologics, medical devices, and regenerative medicine products. It also serves as the general partner of the Management Services Organization. Generex Biotechnology Corporation was founded in 1983 and is headquartered in Miramar, Florida. On April 23, 2022, an involuntary petition for liquidation under Chapter 7 was filed against Generex Biotechnology Corporation in the U.S. Bankruptcy Court for the Southern District of Florida. On June 6, 2022, the involuntary petition was approved by the Court.

Neurotrope, Inc., a biopharmaceutical company, focuses on the development of a product platform for the treatment of Alzheimer's disease. The company's lead product candidate is bryostatin, a natural product isolated from a marine invertebrate organism, a bryozoan called Bugula neritina. It also develops bryostatin for other neurodegenerative or cognitive diseases and dysfunctions, such as Fragile X syndrome, multiple sclerosis, and niemann-pick type C diseases. The company has a license agreement with The Board of Trustees of the Leland Stanford Junior University for the use of bryostatin structural derivatives, known as bryologs, for use in the treatment of central nervous system disorders, lysosomal storage diseases, stroke, cardio protection, and traumatic brain injury; and a license agreement to an accelerated synthesis of bryostatin-1. Neurotrope, Inc. also has a cooperative research and development agreement with the National Cancer Institute for the research and clinical development of Bryostatin-1. The company was founded in 2012 and is based in New York, New York.

Sernova Corp. operates as a clinical-stage regenerative medicine therapeutics company in Canada. The company focuses on the development and commercialization of regenerative medicine therapeutics, including its proprietary Cell Pouch and associated technologies consisting of therapeutic cells and local cellular immune protection. Its Cell Pouch is a novel implantable and scalable medical device which forms a natural environment in the body for the housing and long-term survival and function of therapeutic cells, which release necessary proteins or factors missing from the body to treat chronic diseases as an alternative to daily administration of drugs. Sernova Corp. has a research agreement with the University of Miami to advance the development of Conformal Coating Technology in combination with therapeutic cells within Cell Pouch. Sernova Corp. was incorporated in 1998 and is headquartered in London, Canada.

Tocagen Inc., a clinical-stage cancer-selective gene therapy company, focuses on developing and commercializing product candidates designed to activate a patient's immune system against their cancer. Its cancer-selective gene therapy platform is built on retroviral replicating vectors (RRVs), which are designed to deliver therapeutic genes into the DNA of cancer cells. The company's lead product candidate is Toca 511 & Toca FC that is under Phase III clinical trial for recurrent high-grade glioma. It is also developing Toca 511 & Toca FC in a Phase Ib clinical trial for intravenous treatment of advanced cancers. In addition, the company is developing other RRVs to deliver genes to cancer cells against validated immunotherapy targets. The company has a license agreement with ApolloBio to develop and commercialize Toca 511 & Toca FC; and a collaboration agreement with NRG Oncology to develop a clinical trial utilizing Toca 511 & Toca FC for the treatment of patients with newly diagnosed glioblastoma. Tocagen Inc. was founded in 2007 and is based in San Diego, California.