Nasdaq: RETA | |
Industry | Biotechnology |
Founded | 1 January 2002 |
Fate | Acquired by Biogen |
Revenue | US $26.52 million (2019) US $53.59 million (2018) [1] |
Owner |
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Website | www |
Reata Pharmaceuticals, Inc. is a pharmaceutical company based in Plano, Texas. Founded in 2002, it is primarily focused on investigating experimental oral antioxidative and anti-inflammatory drugs, [2] which dually activate the antioxidative transcription factor Nrf2 and inhibit the pro-inflammatory transcription factor NF-κB. [3]
In July 2023, it was announced Reata had been acquired by the Cambridge, Massachusetts-headquartered multinational biotechnology company, Biogen for nearly $6.5 billion. [4] The purchase was completed on September 26 and Reata stock was delisted from the Nasdaq. [5]
The antioxidative and anti-inflammatory compounds bardoxolone methyl and RTA 408 are the lead clinical development compounds in Reata’s portfolio.
Bardoxolone methyl was one of the first of the class of synthetic triterpenoids to be studied in the clinic. It has been evaluated in Phase 1 studies for cancer, [6] Phase 2 and 3 studies for chronic kidney disease (CKD) associated with type 2 diabetes, [7] [8] and is currently being evaluated in a Phase 2 study for pulmonary arterial hypertension. [9] [10] [11]
Omaveloxolone (RTA 408) is a second generation member of the synthetic oleanane triterpenoid compounds and currently in clinical development. Preclinical studies have demonstrated that RTA 408 possesses antioxidative and anti-inflammatory activities, [12] [13] as well as the potential to improve mitochondrial bioenergetics. [14] Because of the broad applicability of such effects across many diseases, RTA 408 is currently under clinical investigation in several Phase 2 clinical studies including immunooncology, [15] corneal endothelial cell loss associated with cataract surgery [16] Friedreich’s ataxia, [17] and mitochondrial myopathies. [18] [19]
Reata is also actively engaged in the discovery of small molecule disease-modifying drugs that function by stabilizing the normal three-dimensional structure of target proteins or generally enhancing the folding environment of the cell. Defects in protein folding underlie a large number of genetic diseases including certain forms of cancer, familial Alzheimer's disease, and cystic fibrosis. Protein folding defects are also believed to play important roles in the development of non-inherited forms of many of these diseases.
Reata has a licensing agreement with Kyowa Hakko Kirin for development and commercialization of bardoxolone methyl for CKD and related indications in Japan, China, Taiwan, Korea, and other select Southeast Asian countries. [20]
Reata also has a licensing agreement with Abbvie for development and commercialization of bardoxolone methyl outside the U.S., excluding Asian markets defined in the agreement with Kyowa Hakko Kirin. [21] Abbvie and Reata also have a second agreement for development of the second generation portfolio of synthetic oleanane triterpenoid compounds, including RTA 408, as well as other Nrf2 activators. [22]
Biogen Inc. is an American multinational biotechnology company based in Cambridge, Massachusetts, specializing in the discovery, development, and delivery of therapies for the treatment of neurological diseases to patients worldwide.
Polyneuropathy is damage or disease affecting peripheral nerves in roughly the same areas on both sides of the body, featuring weakness, numbness, and burning pain. It usually begins in the hands and feet and may progress to the arms and legs and sometimes to other parts of the body where it may affect the autonomic nervous system. It may be acute or chronic. A number of different disorders may cause polyneuropathy, including diabetes and some types of Guillain–Barré syndrome.
Friedreich's ataxia is an autosomal-recessive genetic disease that causes difficulty walking, a loss of coordination in the arms and legs, and impaired speech that worsens over time. Symptoms generally start between 5 and 20 years of age. Many develop hypertrophic cardiomyopathy and require a mobility aid such as a cane, walker, or wheelchair in their teens. As the disease progresses, some affected people lose their sight and hearing. Other complications may include scoliosis and diabetes mellitus.
Idebenone is a drug that was initially developed by Takeda Pharmaceutical Company for the treatment of Alzheimer's disease and other cognitive defects. This has been met with limited success. The Swiss company Santhera Pharmaceuticals has started to investigate it for the treatment of neuromuscular diseases. In 2010, early clinical trials for the treatment of Friedreich's ataxia and Duchenne muscular dystrophy have been completed. As of December 2013 the drug is not approved for these indications in North America or Europe. It is approved by the European Medicines Agency (EMA) for use in Leber's hereditary optic neuropathy (LHON) and was designated an orphan drug in 2007.
MERRF syndrome is a mitochondrial disease. It is extremely rare, and has varying degrees of expressivity owing to heteroplasmy. MERRF syndrome affects different parts of the body, particularly the muscles and nervous system. The signs and symptoms of this disorder appear at an early age, generally childhood or adolescence. The causes of MERRF syndrome are difficult to determine, but because it is a mitochondrial disorder, it can be caused by the mutation of nuclear DNA or mitochondrial DNA. The classification of this disease varies from patient to patient, since many individuals do not fall into one specific disease category. The primary features displayed on a person with MERRF include myoclonus, seizures, cerebellar ataxia, myopathy, and ragged red fibers (RRF) on muscle biopsy, leading to the disease's name. Secondary features include dementia, optic atrophy, bilateral deafness, peripheral neuropathy, spasticity, or multiple lipomata. Mitochondrial disorders, including MERRFS, may present at any age.
Frataxin is a protein that in humans is encoded by the FXN gene.
Nuclear factor erythroid 2-related factor 2 (NRF2), also known as nuclear factor erythroid-derived 2-like 2, is a transcription factor that in humans is encoded by the NFE2L2 gene. NRF2 is a basic leucine zipper (bZIP) protein that may regulate the expression of antioxidant proteins that protect against oxidative damage triggered by injury and inflammation, according to preliminary research. In vitro, NRF2 binds to antioxidant response elements (AREs) in the promoter regions of genes encoding cytoprotective proteins. NRF2 induces the expression of heme oxygenase 1 in vitro leading to an increase in phase II enzymes. NRF2 also inhibits the NLRP3 inflammasome.
Kelch-like ECH-associated protein 1 is a protein that in humans is encoded by the Keap1 gene.
Oleanolic acid or oleanic acid is a naturally occurring pentacyclic triterpenoid related to betulinic acid. It is widely distributed in food and plants where it exists as a free acid or as an aglycone of triterpenoid saponins.
Mitochondrially encoded tRNA valine also known as MT-TV is a transfer RNA which in humans is encoded by the mitochondrial MT-TV gene.
Mitochondrially encoded tRNA lysine also known as MT-TK is a transfer RNA which in humans is encoded by the mitochondrial MT-TK gene.
Marinesco–Sjögren syndrome (MSS), sometimes spelled Marinescu–Sjögren syndrome, is a rare autosomal recessive disorder.
Bardoxolone methyl is an experimental and orally-bioavailable semi-synthetic triterpenoid, based on the scaffold of the natural product oleanolic acid. Pre-clinical studies indicate that the compound acts as an activator of the Nrf2 pathway and an inhibitor of the NF-κB pathway. A phase 3 clinical trial evaluating bardoxolone methyl for the treatment of chronic kidney disease (CKD) was terminated in October 2012 after patients treated with the drug were found to have experienced a higher rate of heart-related adverse events, including heart failure, hospitalizations, and deaths.
Varespladib is an inhibitor of the IIa, V, and X isoforms of secretory phospholipase A2 (sPLA2). The molecule acts as an anti-inflammatory agent by disrupting the first step of the arachidonic acid pathway of inflammation. From 2006 to 2012, varespladib was under active investigation by Anthera Pharmaceuticals as a potential therapy for several inflammatory diseases, including acute coronary syndrome and acute chest syndrome. The trial was halted in March 2012 due to inadequate efficacy. The selective sPLA2 inhibitor varespladib (IC50 value 0.009 μM in chromogenic assay, mole fraction 7.3X10-6) was studied in the VISTA-16 randomized clinical trial (clinicaltrials.gov Identifier: NCT01130246) and the results were published in 2014. The sPLA2 inhibition by varespladib in this setting seemed to be potentially harmful, and thus not a useful strategy for reducing adverse cardiovascular outcomes from acute coronary syndrome. Since 2016, scientific research has focused on the use of Varespladib as an inhibitor of snake venom toxins using various types of in vitro and in vivo models. Varespladib showed a significant inhibitory effect to snake venom PLA2 which makes it a potential first-line drug candidate in snakebite envenomation therapy. In 2019, the U.S. Food and Drug Administration (FDA) granted varespladib orphan drug status for its potential to treat snakebite.
Harding ataxia is an autosomal recessive cerebellar ataxia originally described by Harding in 1981. This form of cerebellar ataxia is similar to Friedreich ataxia including that it results in poor reflexes and balance, but differs in several ways, including the absence of diabetes mellitus, optic atrophy, cardiomyopathy, skeletal abnormalities, and the fact that tendon reflexes in the arms and knees remain intact. This form of ataxia is characterized by onset in the first 20 years, and is less severe than Friedreich ataxia. Additional cases were diagnosed in 1989, 1990, 1991, and 1998.
Chrysophanol, also known as chrysophanic acid, is a fungal isolate and a natural anthraquinone. It is a C-3 methyl substituted chrysazin of the trihydroxyanthraquinone family.
Omaveloxolone, sold under the brand name Skyclarys, is a medication used for the treatment of Friedreich's ataxia. It is taken by mouth.
Geniposide, the glycoside form of genipin, is a bioactive iridoid glycoside that is found in a wide variety of medicinal herbs, such as Gardenia jasminoides (fruits) . Geniposide shows several pharmacological effects including neuroprotective, antidiabetic, hepatoprotective, anti-inflammatory, analgesic, antidepressant-like, cardioprotective, antioxidant, immune-regulatory, antithrombotic and antitumoral activity. These pharmacology benefits arise through the modulating action of geniposide on several proteins and genes that are associated with inflammatory and oxidative stress processes.
Di-deuterated ethyl linoleate is an experimental, orally-bioavailable synthetic deuterated polyunsaturated fatty acid (PUFA), a part of reinforced lipids. It is an isotopologue of linoleic acid, an essential omega-6 PUFA. The deuterated compound, while identical to natural linoleic acid except for the presence of deuterium, is resistant to lipid peroxidation which makes studies of its cell-protective properties worthwhile.