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A body of preclinical data has provided a strong rationale for evaluating the combination of IFN-alpha with retinoic acid. The two drugs have different mechanisms of action and, when used in combination, show enhanced activity in both adult and pediatric tumor cell lines.
The combination of the antiproliferative and differentiation inducing effect of retinoids together with the antiproliferative, immunostimulatory and differentiation-potentiating effects of IFN-alpha warrant clinical investigation of this combination for the treatment of refractory pediatric malignancies.
A body of preclinical data has provided a strong rationale for evaluating the combination of IFN-alpha with retinoic acid. The two drugs have different mechanisms of action and, when used in combination, show enhanced activity in both adult and pediatric tumor cell lines. In the pediatric phase I trial which administered ATRA for 3 consecutive days/week repeated weekly, the AUC of ATRA decreased on day 1 to day 3 of drug administration but returned to day 1 levels at the beginning of subsequent weeks. This intermittent schedule of ATRA administration allowed for exposure to relatively high plasma concentrations of ATRA on a repetitive basis. The combination of ATRA/IFN-alpha 2a has demonstrated clinical activity in the pediatric phase I trial in neuroblastoma and Wilms' tumor. The combination of the antiproliferative and differentiation inducing effect of retinoids together with the antiproliferative, immunostimulatory and differentiation-potentiating effects of IFN-alpha warrant clinical investigation of this combination for the treatment of refractory pediatric malignancies.
Endpoint Classification: Safety/Efficacy Study, Primary Purpose: Treatment
IFN-alpha with retinoic acid
National Cancer Institute (NCI)
National Institutes of Health Clinical Center (CC)
Published on BioPortfolio: 2014-07-23T21:58:42-0400
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Proteins in the nucleus or cytoplasm that specifically bind RETINOIC ACID or RETINOL and trigger changes in the behavior of cells. Retinoic acid receptors, like steroid receptors, are ligand-activated transcription regulators. Several types have been recognized.
A cytochrome P450 enzyme that resides in the ENDOPLASMIC RETICULUM. It catalyzes the conversion of trans-RETINOIC ACID to 4-hydroxyretinoic acid.
A subtype of RETINOIC ACID RECEPTORS that are specific for 9-cis-retinoic acid which function as nuclear TRANSCRIPTION FACTORS that regulate multiple signalling pathways.
A cytochrome P450 enzyme family whose members function in the metabolism of RETINOIC ACID. It includes RETINOIC ACID 4-HYDROXYLASE.
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