U.S. Department of Health & Human Services Divider Arrow National Institutes of Health Divider Arrow NCATS

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Class (Stereo):
CHEMICAL (ABSOLUTE)

Cenobamate (also known as YKP3089) is a small molecule sodium channel blocker in development for the treatment of partial-onset seizures in adult patients. In mice and rats, Cenobamate displayed an anticonvulsant activity in the maximal electroshock test and prevented seizures induced by chemical convulsants such as pentylenetetrazol and picrotoxin. In addition, Cenobamate was reported to be effective in two models of focal seizure, the hippocampal kindled rat and the mouse 6 Hz psychomotor seizure models. Two completed adequate and well-controlled clinical studies demonstrated a significant reduction in focal seizures with Cenobamate in patients with epilepsy, and a long-term open-label phase 3 safety clinical trial is currently ongoing. Cenobamate is considered a new generation antiepileptic therapy and clinical trials have shown that it may be more effective and safer than existing drugs. If licensed, Cenobamate will offer a new adjunctive treatment option for patients with partial focal epilepsy.

Class (Stereo):
CHEMICAL (ABSOLUTE)



Tecovirimat (ST-246) is a low-molecular-weight compound (molecular weight = 376), that is potent (concentration that inhibited virus replication by 50% = 0.010 microM), selective (concentration of compound that inhibited cell viability by 50% = >40 microM), and active against multiple orthopoxviruses, including vaccinia, monkeypox, camelpox, cowpox, ectromelia (mousepox), and variola viruses. The antiviral activity is specific for orthopoxviruses and the compound does not inhibit the replication of other RNA- and DNA-containing viruses or inhibit cell proliferation at concentrations of compound that are antiviral. ST-246 targets vaccinia virus p37, a viral protein required for envelopment and secretion of extracellular forms of virus. The compound is orally bioavailable and protects multiple animal species from lethal orthopoxvirus challenge. rug substance and drug product processes have been developed and commercial scale batches have been produced using Good Manufacturing Processes (GMP). Human phase I clinical trials have shown that ST-246 is safe and well tolerated in healthy human volunteers. Based on the results of the clinical evaluation, once a day dosing should provide plasma drug exposure in the range predicted to be antiviral based on data from efficacy studies in animal models of orthopoxvirus disease.
Acalabrutinib, also known as ACP-196, is a novel irreversible second-generation Bruton’s tyrosine kinase (BTK) inhibitor, which prevents the activation of the B-cell antigen receptor (BCR) signaling pathway and that, was rationally designed to be more potent and selective than ibrutinib. This drug in clinical trials phase III for treatment the treatment of relapsed chronic lymphocytic leukemia. Also in combination with others drugs, Acalabrutinib in phase II of clinical trials for the treatment Glioblastoma Multiforme, Mantle Cell Lymphoma, Squamous Cell Carcinoma of the Head and Neck, Rheumatoid Arthritis and some others.
Ivabradine (CORLANOR®) is a hyperpolarization-activated cyclic nucleotide-gated channel blocker that reduces the spontaneous pacemaker activity of the cardiac sinus node by selectively inhibiting the If-current, resulting in heart rate reduction at concentrations that do not affect other cardiac ionic currents. Specific heart-rate lowering with ivabradine (CORLANOR®) reduces myocardial oxygen demand, simultaneously improving oxygen supply. It has no negative inotropic or lusitropic effects, preserving ventricular contractility, and does not change any major electrophysiological parameters unrelated to heart rate.
Vortioxetine is an antidepressant for the treatment of major depressive disorder. Vortioxetine’s mechanism of action is not fully understood. Vortioxetine binds with high affinity to the serotonin transporter and its antidepressant actions are believed to be secondary to enhancing serotonin in the central nervous system through inhibition of reuptake. Vortioxetine also displays binding affinities to other serotonin (5-HT) receptors, including 5-HT3, 5-HT1A, and 5-HT7. Due to multimodal neurotransmitter enhancer profile, it has been suggested that it might need lesser receptor occupancy rate for clinical trials than other selective serotonin reuptake inhibitors and selective norepinephrine reuptake inhibitors. Since vortioxetine is an agonist and antagonist of multiple serotonin receptors, potential interactions may occur with other medications that alter the serotonergic pathways. There is an increased risk of serotonin syndrome when vortioxetine is used in combination with other serotonergic agents.
Bedaquiline (trade name Sirturo, code names TMC207 and R207910) is a diarylquinoline anti-tuberculosis drug, which was discovered by a team led by Koen Andries at Janssen Pharmaceutica. When it was approved by the FDA on the 28th December 2012, it was the first new medicine to fight TB in more than forty years, and is specifically approved to treat multi-drug-resistant tuberculosis. Bedaquiline is a diarylquinoline antimycobacterial drug that inhibits the proton pump of mycobacterial ATP (adenosine 5'-triphosphate) synthase, an enzyme that is essential for the generation of energy in Mycobacterium tuberculosis. Bacterial death occurs as a result of bedaquiline.
Ioflupane I-123 (trade name DaTscan) is a radioiodinated cocaine analogue synthesized from a key starting material Sn FP-CT via oxidative iododestannylation with sodium (123I)-iodide. Ioflupane I-123 binds reversibly with high affinity to the dopamine transporter (DaT) protein, a marker for presynaptic terminals in dopaminergic nigrostriatal neurons. It has been developed as a dopamine transporter imaging agent for single photon emission computed tomography (SPECT) which is claimed to be sensitive enough to differentiate changes in the nigrostriatal dopaminergic system in patients with Parkinsonism and healthy controls. DaTSCAN is unable to discriminate between Parkinson's Disease, Multiple System Atrophy and Progressive Supranuclear Palsy. DaTscan is an adjunct to other diagnostic evaluations. Headache, nausea, vertigo, dry mouth, or dizziness of mild to moderate severity as well as hypersensitivity reactions and injection-site pain have been reported. The DaTscan injection may contain up to 6% of free iodide (iodine 123 or I-123). To decrease thyroid accumulation of I-123, the thyroid gland has to be blocked at least one hour before administration of DaTscan because of the long-term risk for thyroid neoplasia. DaTscan was first approved in the European Union (EU) on July 27, 2000. It is also approved in Israel, Switzerland and in the United States (a total of 33 countries).

Class (Stereo):
CHEMICAL (ABSOLUTE)



Pitavastatin is a new synthetic 3-hydroxy-3-methyl glutaryl coenzyme A reductase (HMG-CoA reductase) inhibitor, which was developed, and has been available in Japan since July 2003. Metabolism of pitavastatin by the cytochrome P450 (CYP) system is minimal, principally through CYP 2C9, with little involvement of the CYP 3A4 isoenzyme, potentially reducing the risk of drug-drug interactions between pitavastatin and other drugs known to inhibit CYP enzymes. To date, human and animal studies have shown pitavastatin to be potentially as effective in lowering LDL-cholesterol levels as rosuvastatin. Pitavastatin under the trade name Livalo is indicated as an adjunctive therapy to diet to reduce elevated total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), apolipoprotein B (Apo B), triglycerides (TG), and to increase HDL-C in adult patients with primary hyperlipidemia or mixed dyslipidemia. Pitavastatin competitively inhibits HMG-CoA reductase, which is a rate-determining enzyme involved with biosynthesis of cholesterol, in a manner of competition with the substrate so that it inhibits cholesterol synthesis in the liver. As a result, the expression of LDL-receptors followed by the uptake of LDL from blood to liver is accelerated and then the plasma TC decreases. Further, the sustained inhibition of cholesterol synthesis in the liver decreases levels of very low density lipoproteins. Common statin-related side effects (headaches, stomach upset, abnormal liver function tests and muscle cramps) were similar to other statins.
Erlotinib hydrochloride (trade name Tarceva, Genentech/OSIP, originally coded as OSI-774) is a drug used to treat non-small cell lung cancer, pancreatic cancer and several other types of cancer. Similar to gefitinib, erlotinib specifically targets the epidermal growth factor receptor (EGFR) tyrosine kinase. It binds in a reversible fashion to the adenosine triphosphate (ATP) binding site of the receptor. Erlotinib has recently been shown to be a potent inhibitor of JAK2V617F activity. JAK2V617F is a mutant of tyrosine kinase JAK2, is found in most patients with polycythemia vera (PV) and a substantial proportion of patients with idiopathic myelofibrosis or essential thrombocythemia. The study suggests that erlotinib may be used for treatment of JAK2V617F-positive PV and other myeloproliferative disorders. The mechanism of clinical antitumor action of erlotinib is not fully characterized. Erlotinib inhibits the intracellular phosphorylation of tyrosine kinase associated with the epidermal growth factor receptor (EGFR). Specificity of inhibition with regard to other tyrosine kinase receptors has not been fully characterized. EGFR is expressed on the cell surface of normal cells and cancer cells.