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

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Showing 91 - 100 of 55039 results

Crisaborole is a topically administered, boron-containing, anti-inflammatory compound that inhibits the phosphodiesterase-4 (PDE4) activity and thereby suppresses the cytokine release of TNFalpha, IL-12, IL-23 and other cytokines. PDE4 is an an enzyme that converts the intracellular second messenger 3'5'-cyclic adenosine monophosphate (cAMP) into the active metabolite adenosine monophosphate (AMP). By inhibiting PDE4 and thus increasing levels of cAMP, crisaborole controls inflammation. The use of boron chemistry enabled synthesis of a low-molecular-weight compound (251 daltons), thereby facilitating effective penetration of crisaborole through human skin. Crisaborole is in clinical development for the topical treatment of psoriasis and being pursued for the topical treatment of atopic dermatitis. Preliminary studies in children and adults demonstrated favorable efficacy and safety profiles. Crisaborole may represent an anti-inflammatory option that safely minimizes the symptoms and severity of AD and that can be used for both acute and long-term management.

Class (Stereo):
CHEMICAL (ABSOLUTE)


Conditions:

Brivaracetam (UCB 34714, trade name Briviact), the 4-n-propyl analog of levetiracetam, is a racetam derivative with anticonvulsant properties. Briviact is indicated as adjunctive therapy in the treatment of partial-onset seizures in patients 16 years of age and older with epilepsy. Brivaracetam is believed to act by binding to the ubiquitous synaptic vesicle glycoprotein 2A (SV2A), like levetiracetam, but with 20-fold greater affinity. There is some evidence that racetams including levetiracetam and brivaracetam access the luminal side of recycling synaptic vesicles during vesicular endocytosis. They may reduce excitatory neurotransmitter release and enhance synaptic depression during trains of high-frequency activity, such as is believed to occur during epileptic activity.
Edoxaban (DU-176b, trade names Savaysa, Lixiana) is a selective factor Xa inhibitor reduces thrombin generation and thrombus formation and is an orally bioavailable anticoagulant drug. It was developed by Daiichi Sankyo to reduce the risk of stroke and systemic embolism in patients with nonvalvular atrial fibrillation (NVAF) and for the treatment of deep vein thrombosis and pulmonary embolism following 5-10 days of initial therapy with a parenteral anticoagulant.
Alectinib is a second generation oral drug that selectively inhibits the activity of anaplastic lymphoma kinase (ALK) tyrosine kinase. It was developed by Chugai Pharmaceutical Co. Japan, which is part of the Hoffmann-La Roche group. Alectinib is specifically used in the treatment of non-small cell lung cancer (NSCLC) expressing the ALK-EML4 (echinoderm microtubule-associated protein-like 4) fusion protein that causes proliferation of NSCLC cells. Inhibition of ALK prevents phosphorylation and subsequent downstream activation of STAT3 and AKT resulting in reduced tumour cell viability. Approved under accelerated approval in 2015, alectinib is indicated for use in patients who have progressed on or were not tolerant of crizotinib, which is associated with the development of resistance. Alectinib is marketed as Alecensa.

Class (Stereo):
CHEMICAL (ABSOLUTE)

Targets:


Trabectedin (ET-743) is a marine alkaloid isolated from the Caribbean tunicate Ecteinascidia turbinata. Trabectedin was approved for the treatment of liposarcoma or leiomyosarcoma (USA and Europe) and ovarian cancer (only in Europe). Trabectedin exerts its anti-cancer action by binding guanine residues in the minor groove of DNA. The binding prevents DNA from interacting with transcription factors and the reparation system and results in perturbation of the cell cycle and eventual cell death.
Brexpiprazole is a novel D2 dopamine and serotonin 1A partial agonist, called serotonin-dopamine activity modulator (SDAM), and a potent antagonist of serotonin 2A receptors, noradrenergic alpha 1B and 2C receptors. Brexpiprazole is approved for the treatment of schizophrenia, and as an adjunctive treatment for major depressive disorder (MDD). Although it failed Phase II clinical trials for ADHD, it has been designed to provide improved efficacy and tolerability (e.g., less akathisia, restlessness and/or insomnia) over established adjunctive treatments for major depressive disorder (MDD).Brexpiprazole is sold under the brand name Rexulti. Although the mechanism of action of brexpiprazole in the treatment of MDD and schizophrenia is unclear, the efficacy of brexpiprazole may be attributed to partial agonist activity at serotonin 1A and dopamine D2 receptors, and antagonist activity at serotonin 2A receptors.
Osimertinib is an oral, third-generation epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor (TKI) drug developed by AstraZeneca Pharmaceuticals. Its use is indicated for the treatment of metastatic non-small cell lung cancer (NSCLC) in cases where tumour EGFR expression is positive for the T790M mutation as detected by FDA-approved testing and which has progressed following therapy with a first-generation EGFR tyrosine kinase inhibitor. Approximately 10% of patients with NSCLC have a rapid and clinically effective response to EGFR-TKIs due to the presence of specific activating EGFR mutations within the tumour cells. More specifically, deletions around the LREA motif in exon 19 and exon 21 L858R point mutations are correlated with response to therapy. Osimertinib is an epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor (TKI) that binds to certain mutant forms of EGFR (T790M, L858R, and exon 19 deletion) that predominate in non-small cell lung cancer (NSCLC) tumours following treatment with first-line EGFR-TKIs. As a third-generation tyrosine kinase inhibitor, osimertinib is specific for the gate-keeper T790M mutation which increases ATP binding activity to EGFR and results in poor prognosis for late-stage disease. Furthermore, osimertinib has been shown to spare wild-type EGFR during therapy, thereby reducing non-specific binding and limiting toxicity. Osimertinib is marketed under the brand name Tagrisso.
Eluxadoline, an orally active mixed μ opioid receptor (μOR) agonist δ opioid receptor (δOR) antagonist. Eluxadoline normalizes gastrointestinal (GI) transit and defecation under conditions of novel environment stress or post-inflammatory altered GI function. Allergan (previously Actavis) is developing eluxadoline for the treatment of diarrhoea-predominant irritable bowel syndrome. The agent was originated by Janssen Pharmaceutica. Eluxadoline has been launched in the US under trade name VIBERZI (eluxadoline) tablets, while is at the preregistration stage in the EU.

Class (Stereo):
CHEMICAL (ABSOLUTE)



Sacubitril is a prodrug neprilysin inhibitor used in combination with valsartan (sold under the brand name Entresto among others) to reduce the risk of cardiovascular events in patients with chronic heart failure (NYHA Class II-IV) and reduced ejection fraction. It was approved under the FDA's priority review process for use in heart failure on July 7, 2015. Sacubitril's active metabolite, LBQ657 inhibits neprilysin, a neutral endopeptidase that would typically cleave natiuretic peptides such as atrial natriuretic peptide (ANP), brain natriuretic peptide (BNP), and c-type natriuretic peptide (CNP). ANP and BNP are released under atrial and ventricle stress, which activate downstream receptors leading to vasodilation, natriuresis and diuresis. Under normal conditions, neprilysin breaks down other vasodilating peptides and also vasoconstrictors such as angiotensin I and II, endothelin-1 and peptide amyloid beta-protein. Inhibition of neprilysin therefore leads to reduced breakdown and increased concentration of endogenous natriuretic peptides in addition to increased levels of vasoconstricting hormones such as angiotensin II.
Cariprazine is an antipsychotic approved by FDA for the treatment of schizophrenia and bipolar I disorder. The drug has a unique clinical action which is explained by its ability to act on dopamine D3 receptors. Pharmacology studies revealed that cariprazine is a dual partial agonist of dopamine D2 and D3 receptors as well as serotonin 5HT1a, 2a and 2b receptors.