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Cetuximab, sold under the brand name Erbitux, is an epidermal growth factor receptor (EGFR) inhibitor medication used for the treatment of metastatic colorectal cancer and head and neck cancer. [2] Cetuximab is a chimeric (mouse/human) monoclonal antibody given by intravenous infusion .
Threshold dose is the minimum dose of drug that triggers minimal detectable biological effect in an animal. [1] At extremely low doses, biological responses are absent for some of the drugs. The increase in dose above threshold dose induces an increase in the percentage of biological responses. [ 2 ]
Cetuximab [32] Erbitux: mab: chimeric: Epidermal growth factor receptor (EGFR) Y: metastatic colorectal cancer and head and neck cancer: Cibisatamab [5] mab: humanized: CEACAM5: cancer Cilgavimab [29] mab: human: spike protein receptor binding domain (RBD) of SARS-CoV-2: US emergency use authorization (EUA) when used with tixagevimab [48] COVID ...
An equianalgesic chart can be a useful tool, but the user must take care to correct for all relevant variables such as route of administration, cross tolerance, half-life and the bioavailability of a drug. [5] For example, the narcotic levorphanol is 4–8 times stronger than morphine, but also has a much longer half-life. Simply switching the ...
The maximum dose is used, rather than a lower dose, to reduce the number of test subjects (and, among other things, the cost of testing), to detect an effect that might occur only rarely. This type of analysis is also used in establishing chemical residue tolerances in foods. Maximum tolerated dose studies are also done in clinical trials.
Animal models are used to learn more about a disease, its diagnosis and its treatment, with animal models predicting human toxicity in up to 71% of cases. [1] The human equivalent dose (HED) or human equivalent concentration (HEC) is the quantity of a chemical that, when administered to humans, produces an effect equal to that produced in test animals by a smaller dose. [2]
TDM interpretation: an anticancer drug is given to a patient at a dosage of 400 mg every day at 8:00 am. A TDM sample is obtained at 6:00 am, showing a drug concentration of 0.46 mg/L. 1) Regarding “normality”, the result is around the 25th percentile, suggesting a rather high drug clearance in this patient.
After an intravenous administration, C max and t max are closely dependent on the experimental protocol, since the concentrations are always decreasing after the dose. But after oral administration, C max and t max are dependent on the extent, and the rate of drug absorption and the disposition profile of the drug. They could be used to ...