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

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Showing 271 - 280 of 1060 results

Status:
US Approved OTC
Source:
21 CFR 333.210(g) antifungal clotrimazole
Source URL:
First approved in 1975

Class (Stereo):
CHEMICAL (ACHIRAL)



Clotrimazole is an anti-fungal medicine indicated for the treatment of vaginal yeast infections and tinea. It can be used either in combination with other drugs (betamethasone dipropionate) or alone, in form of topical or vaginal cream. The drug exerts its action by inhibiting lanosterol demethylase thereby affecting the growth of fungi.
Status:
US Approved OTC
Source:
21 CFR 333.210(c) antifungal miconazole nitrate
Source URL:
First approved in 1974

Class (Stereo):
CHEMICAL (RACEMIC)



Miconazole is a synthetic imidazole derivative, a topical antifungal agent for use in the local treatment of vaginal, and skin and nail infections due to yeasts and dermatophytes. It is particularly active against Candida spp., Trichophyton spp., Epidermophyton spp., Microsporum spp. and Pityrosporon orbiculare (Malassezia furfur), but also possesses some activity against Gram-positive bacteria. It binds to the heme moiety of the fungal cytochrome P-450 dependent enzyme lanosterol 14-alpha-demethlyase. Inhibits 14-alpha-demethlyase, blocks formation of ergosterol and leads to the buildup of toxic methylated 14-a-sterols. Miconazole also affects the synthesis of triglycerides and fatty acids and inhibits oxidative and peroxidative enzymes, increasing the amount of active oxygen species within the cell.
Status:
US Approved OTC
Source:
21 CFR 349.12(d)(5) ophthalmic:demulcents propylene glycol
Source URL:
First approved in 1961
Source:
VOSOL PROPYLENE GLYCOL by WAMPOLE LABS
Source URL:

Class (Stereo):
CHEMICAL (RACEMIC)


PROPYLENE GLYCOL is a component of SYSTANE® Lubricant. It is used for the temporary relief of burning and irritation due to dryness of the eye.
Status:
US Approved OTC
Source:
21 CFR 341.12(e) cough/cold:antihistamine dexchlorpheniramine maleate
Source URL:
First approved in 1958
Source:
Polaramine by Schering
Source URL:

Class (Stereo):
CHEMICAL (ABSOLUTE)


Conditions:

Dexchlorpheniramine, the d-isomer of the racemic compound chlorpheniramine, is two times more active than chlorpheniramine. Dexchlorpheniramine does not prevent the release of histamine, but rather, competes with free histamine for binding at the H1-receptor sites, and competitively antagonizes the effects of histamine on H1-receptors in the GI tract, uterus, large blood vessels, and bronchial muscle. Blockade of H1-receptors also suppresses the formation of oedema, flare, and pruritus that result from histaminic activity. Since dexchlorpheniramine binds to central and peripheral H1-receptors, sedative effects are likely to occur. H1-antagonists are structurally similar to anticholinergic agents and therefore possess the potential to exhibit anticholinergic properties of varying degrees. They also have antipruritic effects. Dexchlorpheniramine has high antihistaminic activity, moderate anticholinergic effects and minimal sedative effects. The drug does not possess antiemetic properties.
Status:
US Approved OTC
Source:
21 CFR 341.14(a)(3) cough/cold:antitussive dextromethorphan
Source URL:
First approved in 1954
Source:
Romilar by Hoffmann-La Roche
Source URL:

Class (Stereo):
CHEMICAL (ABSOLUTE)



Dextromethorphan is a non-narcotic morphine derivative widely used as an antitussive for almost 40 years. It has attracted attention due to its anticonvulsant and neuroprotective properties. It is a cough suppressant in many over-the-counter cold and cough medicines. In 2010, the FDA approved the combination product dextromethorphan/quinidine for the treatment of pseudobulbar affect. Dextromethorphan suppresses the cough reflex by a direct action on the cough center in the medulla of the brain. Dextromethorphan shows high-affinity binding to several regions of the brain, including the medullary cough center. This compound is an NMDA receptor antagonist and acts as a non-competitive channel blocker. It is one of the widely used antitussives and is used to study the involvement of glutamate receptors in neurotoxicity. Dextromethorphan (DM) is a sigma-1 receptor agonist and an uncompetitive NMDA receptor antagonist. The mechanism by which dextromethorphan exerts therapeutic effects in patients with pseudobulbar affect is unknown. Dextromethorphan should not be taken with monoamine oxidase inhibitors due to the potential for serotonin syndrome. Dextromethorphan is extensively metabolized by CYP2D6 to dextrorphan, which is rapidly glucuronidated and unable to cross the blood-brain barrier.

Class (Stereo):
CHEMICAL (ACHIRAL)

Isopropanolamine (1-Amino-2-propanol) is a colorless to yellowish liquid with an amine-like odor. It is miscible in water. Intermediate used in the production of dyes, lubrification oils, corrosion inhibitor, detergents, cutting fluids.
Status:
Investigational
Source:
NCT00085826: Phase 3 Interventional Completed Non-Small Cell Lung Cancer
(2001)
Source URL:

Class (Stereo):
CHEMICAL (ACHIRAL)



Exisulind (tentative trade name Aptosyn) is an antineoplastic agent, which was originally developed by Cell Pathways. This drug is an inhibitor of phosphodiesterase (PDE) isozymes: PDE5 and PDE4. Inhibition of PDE5 appears to be pharmacologically relevant, which leads to increase cGMP and activate protein kinase G at doses that induce apoptosis, whereas cyclic AMP levels were not changed. Exisulind has been in phase III clinical trials for the treatment of Non-Small Cell Lung Cancer and for the treatment of polyps in patients who have familial adenomatous polyposis (Colorectal Cancer and Small Intestine Cancer). In addition, this drug was in phase II/III for the treatment of Prostate Cancer, however, there studies have been discontinued.
Dacinostat (also known as LAQ824), is a hydroxamate histone deacetylase inhibitor with potential anticancer activity. Dacinostat inhibits histone deacetylase enzymatic activities in vitro and transcriptionally activated the p21 promoter in reporter gene assays. Tumor cells treated with Dacinostat caused acetylation of HSP90 and degradation of its cargo oncoproteins. Flow cytometry studies revealed that both tumor cell lines and normal diploid fibroblasts arrested in the G2/M phase of the cell cycle after Dacinostat treatment. However, an increased sub-G1 population at 48 h (reminiscent of apoptotic cells) was only observed in the cancer cell lines treated with Dacinostat. Dacinostat exhibited antitumor effects in a xenograft animal models. In phase I trials, Dacinostat was well tolerated at doses that induced accumulation of histone acetylation, with higher doses inducing changes consistent with HSP90 inhibition. In another phase 1 in patients with advanced solid tumors, grade 3 or 4 toxicities were observed. Dacinostat had been in phase II clinical trials by Novartis for the treatment of solid tumors but further studies were discontinued.
Status:
Investigational
Source:
NCT00760864: Phase 2 Interventional Completed Arthritis, Rheumatoid
(2004)
Source URL:

Class (Stereo):
CHEMICAL (ACHIRAL)



TAK-715 (Takeda) was a p38 MAPK inhibitor that had been implicated in the pro-inflammatory cytokine signal pathway, the inhibitors of which are potentially useful for the treatment of chronic inflammatory diseases such as rheumatoid arthritis and inflammatory bowel disease. Inhibition of p38 MAPK and LPS-stimulated release of TNF-α from human monocytic THP-1 cells by TAK-715 was demonstrated in vitro; its inhibition of LPS-induced TNF-α production was demonstrated in vivo in mice. TAK-715 had showed good bioavailability in mice and rats and efficacy in a rat adjuvant-induced arthritis model. It was advanced into clinical Phase II trials but was discontinued, as it did not satisfy criteria for further development.
Status:
Investigational
Source:
NCT04001517: Phase 2 Interventional Completed Dementia With Lewy Bodies (DLB)
(2019)
Source URL:

Class (Stereo):
CHEMICAL (ACHIRAL)



VX-745 (Neflamapimod) is a brain-penetrant highly selective, orally bioavailable drug that inhibits the intracellular enzyme p38 mitogen-activated protein kinase alpha (MAPKa). It is currently in phase 2 clinical studies in patients with early Alzheimer's disease. The targeting of p38 MAPK by VX-745 was associated with the suppression of the release of inflammatory mediators, including interleukin (IL)-1β and tumor necrosis factor (TNF)α, known to be implicated in exacerbating the pathophysiology of rheumatoid arthritis (RA). The drug was in phase II of the clinical trial for RA, but that studies were discontinued.