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

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There is one exact (name or code) match for ritonavir

 
Ritonavir is a protease inhibitor with activity against Human Immunodeficiency Virus Type 1 (HIV-1). Ritonavir binds to the protease active site and inhibits the activity of the enzyme. It is FDA approved for the treatment of HIV-1 infection. In patients receiving medications metabolized by CYP3A or initiation of medications metabolized by CYP3A in patients already receiving Ritonavir, may increase plasma concentrations of medications metabolized by CYP3A. The most frequently reported adverse drug reactions among patients receiving Ritonavir alone or in combination with other antiretroviral drugs were gastrointestinal (including diarrhea, nausea, vomiting, abdominal pain (upper and lower)), neurological disturbances (including paresthesia and oral paresthesia), rash, and fatigue/asthenia.
Ritonavir is a protease inhibitor with activity against Human Immunodeficiency Virus Type 1 (HIV-1). Ritonavir binds to the protease active site and inhibits the activity of the enzyme. It is FDA approved for the treatment of HIV-1 infection. In patients receiving medications metabolized by CYP3A or initiation of medications metabolized by CYP3A in patients already receiving Ritonavir, may increase plasma concentrations of medications metabolized by CYP3A. The most frequently reported adverse drug reactions among patients receiving Ritonavir alone or in combination with other antiretroviral drugs were gastrointestinal (including diarrhea, nausea, vomiting, abdominal pain (upper and lower)), neurological disturbances (including paresthesia and oral paresthesia), rash, and fatigue/asthenia.
Larotrectinib (previously known as ARRY-470 and LOXO-101) is a potent, oral and selective investigational new drug in clinical development for the treatment of patients with cancers that harbor abnormalities involving the tropomyosin receptor kinases (TRKs). Larotrectinib is in phase II clinical trials for the treatment patients with solid tumors, non-Hodgkin lymphoma and for the pediatric patients with advanced solid or primary CNS tumors.
Ribociclib, also known as LEE011, is an orally available cyclin-dependent kinase (CDK) inhibitor targeting cyclin D1/CDK4 and cyclin D3/CDK6 cell cycle pathway, with potential antineoplastic activity. CDK4/6 inhibitor LEE011 specifically inhibits CDK4 and 6, thereby inhibiting retinoblastoma (Rb) protein phosphorylation. Inhibition of Rb phosphorylation prevents CDK-mediated G1-S phase transition, thereby arresting the cell cycle in the G1 phase, suppressing DNA synthesis and inhibiting cancer cell growth. Overexpression of CDK4/6, as seen in certain types of cancer, causes cell cycle deregulation. Ribociclib is in phase III clinical trials by Novartis for the treatment of postmenopausal women with advanced breast cancer. Phase II clinical trials are also in development for the treatment of liposarcoma, ovarian cancer, fallopian tube cancer, peritoneum cancer, endometrial cancer, and gastrointestinal cancer. Preregistration for Breast cancer (First-line therapy, Combination therapy, Late-stage disease) in the USA (PO) in November 2016.
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.
Lumacaftor (VX-809) is an investigational drug developed by the Massachusetts-based pharmaceutical company Vertex for the treatment of patients who suffer from cystic fibrosis (CF) and have the F508del mutation in the CF transmembrane conductance regulator (CFTR). Currently, lumacaftor is approved by the U.S. FDA as a combined oral treatment for CF in combination with Kalydeco (ivacaftor). Lumacaftor is commercialized by Vertex under the brand name Orkambi, and Kalydeco was approved in the United States in 2012. The lumacaftor/Kalydeco combo was approved by the FDA in July 2015 for patients ages 12 and older, while the use of lumacaftor alone is still being studied by Vertex. The mechanism of action of lumacaftor is based on the interference with the F508 CFTR. The chronic disease is caused by a mutation in the gene that controls the salt transportation in the cells, resulting in thick, sticky mucus in the respiratory, digestive, and reproductive systems. To address that genetic defect, lumacaftor helps correct the mutated genes with a novel therapeutic approach. Both lumicaftor and kalydeco work by correcting the misfolded CFTR protein, the root cause of the F508del mutation, which led to the approval of the combined treatment by the FDA. However, while kalydeco alone is also approved by the FDA, the use of lumacftor alone has not yet been approved.
Rolapitant (VARUBI) is neurokinin 1 (NK1) receptor antagonist. Rolapitant does not have significant affinity for the NK2 or NK3 receptors. Drug is indicated in combination with other antiemetic agents in adults for the prevention of delayed nausea and vomiting associated with initial and repeat courses of emetogenic cancer chemotherapy, including, but not limited to, highly emetogenic chemotherapy. Most common adverse reactions are: neutropenia and hiccups at Cisplatin Based Highly Emetogenic Chemotherapy; decreased appetite, neutropenia and dizziness at Moderately Emetogenic Chemotherapy and Combinations of Anthracycline and Cyclophosphamide. Inhibition of BCRP and P-gp by rolapitant can increase plasma concentrations of the concomitant drug and potential for adverse reactions. Strong CYP3A4 Inducers (e.g., rifampin) can significantly reduce plasma concentrations of rolapitant and decrease the efficacy of VARUBI.

Class (Stereo):
CHEMICAL (ACHIRAL)


Conditions:

Dabrafenib is a selective, orally bioavailable inhibitor of Mutant BRAF protein kinase with potential antineoplastic activity. Dabrafenib inhibits BRAF kinases with in vitro IC50 values of 0.65, 0.5, and 1.84 nM for BRAF V600E, BRAF V600K, and BRAF V600D enzymes, respectively. Dabrafenib also inhibits wild-type BRAF and CRAF kinases with IC50 values of 3.2 and 5.0 nM. BRAF belongs to the the raf/mil family of serine/threonine protein kinases and plays a role in regulating the MAP kinase/ERKs signaling pathway, which may be constitutively activated due to BRAF gene mutations. Mutations in BRAF are associated with increased growth and proliferation of cancer cells. By inhibiting BRAF kinase dabrafenib negatively regulates the proliferation of tumor cells which contain a mutated BRAF gene. Dabrafenib (in combination with trametinib or alone) is indicated for the treatment of unresectable or metastatic melanoma with BRAF V600E mutation

Class (Stereo):
CHEMICAL (ABSOLUTE)



Cobicistat (GS-9350) is a potent, and selective inhibitor of human cytochrome P450 3A (CYP3A) enzymes. Cobicistat is a pharmacokinetic booster of several antiretrovirals. TYBOST (cobicistat) is indicated to increase systemic exposure of atazanavir or darunavir in combination with other antiretroviral agents in the treatment of HIV-1 infection.

Class (Stereo):
CHEMICAL (ACHIRAL)



Enzalutamide (brand name Xtandi) is an orally bioavailable, organic, non-steroidal small molecule targeting the androgen receptor (AR) with potential antineoplastic activity. It was developed at UCLA and marketed by the pharmaceutical company Medivation for the treatment of metastatic castration-resistant prostate cancer. Through a mechanism that is reported to be different from other approved AR antagonists, enzalutamide inhibits the activity of prostate cancer cell ARs, which may result in a reduction in prostate cancer cell proliferation and, correspondingly, a reduction in the serum prostate specific antigen (PSA) level. AR over-expression in prostate cancer represents a key mechanism associated with prostate cancer hormone resistance.