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Purple Biotech Ltd., a clinical-stage pharmaceutical company, focuses on the development and commercialization of various pharmaceutical drugs. It operates through two segments, Oncology, and Pain and Hypertension. The company's marketed products include Consensi, a fixed-dose combination of celecoxib and amlodipine besylate for the simultaneous treatment of osteoarthritis pain and hypertension in the United States, as well as in China and South Korea. Its oncology pipeline includes NT-219, a small molecule that is advancing as a monotherapy treatment of advanced solid tumors and in combination with cetuximab for the treatment of recurrent or metastatic squamous cell carcinoma of head and neck cancer in a planned phase 1/2 study; and CM-24, a monoclonal antibody blocking CEACAM1 that is being developed as a combination therapy with anti-PD1 checkpoint inhibitors for the treatment of non-small cell lung cancer and pancreatic cancer. The company was formerly known as Kitov Pharma Ltd and changed its name to Purple Biotech Ltd. in December 2020. Purple Biotech Ltd. is headquartered in Tel Aviv, Israel.

OHR Pharmaceutical, Inc. operates as a development stage pharmaceutical company. The company intends to merge with NeuBase Therapeutics, Inc. that focuses on advancing NeuBase's peptide-nucleic acid antisense oligonucleotide technology platform for the development of therapies to address severe and currently untreatable diseases caused by genetic mutations. OHR Pharmaceutical, Inc. is headquartered in New York, New York.

Pulmatrix, Inc., a clinical stage biotechnology company, discovers and develops inhaled therapies to prevent and treat respiratory and other diseases with unmet medical needs in the United States. The company focuses on developing products based on its inhaled small particles easily respirable and emitted (iSPERSE) technology, which enables delivery of small or large molecule drugs to the lungs by inhalation for local or systemic applications. It engages in developing PUR1800, a narrow spectrum kinase inhibitor completed Phase 1b clinical trials for patients with stable moderate-severe chronic obstructive pulmonary disease; PUR1900 for the treatment of allergic bronchopulmonary aspergillosis in patients with asthma and cystic fibrosis; and PUR3100, an iSPERSE formulation of dihydroergotamine for the treatment of acute migraine. The company has a license agreement with RespiVert Ltd. for access to a portfolio of kinase inhibitor drug candidates; and a development and commercialization agreement with Cipla Technologies LLC for the development and commercialization of PUR1900. Pulmatrix, Inc. was founded in 2003 and is headquartered in Lexington, Massachusetts.

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.

Tetraphase Pharmaceuticals, Inc., a biopharmaceutical company, develops various antibiotics for the treatment of serious and life-threatening multidrug-resistant infections. The company's lead product candidate is Xerava (eravacycline), a synthetic fluorocycline intravenous and IV antibiotic for use as a first-line empiric monotherapy to treat multidrug-resistant infections, including multidrug-resistant Gram-negative infections. It conducted Phase III clinical trials with Xerava through investigating Gram-negative infections treated with Xerava (IGNITE). The company has completed IGNITE1 and IGNITE4, a Phase III clinical trial evaluating the safety and efficacy of Xerava with IV administration for the treatment of complicated intra-abdominal infections; IGNITE2, a Phase III clinical trial evaluating the safety and efficacy of Xerava with IV-to-oral transition therapy for the treatment of complicated urinary tract infections (cUTI); and IGNITE3, a Phase III clinical trial evaluating the safety and efficacy of Xerava with IV administration for the treatment of cUTI. It is also developing TP-271, a synthetic broad-spectrum fluorocycline that is in Phase I clinical trial for respiratory diseases caused by bacterial biothreat pathogens; TP-6076, a synthetic fluorocycline derivative, which is in Phase I clinical trial for multidrug-resistant Gram-negative infections; and TP-2846, a synthetic tetracycline for the treatment of acute myeloid leukemia, which is in pre-clinical stage. Tetraphase Pharmaceuticals, Inc. has a license agreement with Everest Medicines Limited to develop and commercialize Xerava for the treatment of complicated intra-abdominal infections and other indications in mainland China, Taiwan, Hong Kong, Macau, South Korea, and Singapore. The company was founded in 2006 and is headquartered in Watertown, Massachusetts.