PD of drugs in combination therapy

3 messages 2 people Latest: Jan 27, 2009

PD of drugs in combination therapy

From: Fatemeh Akhlaghi Date: January 26, 2009 technical
Hi I was wondering if anyone has experience modeling the effect of three separate drugs on the same biomarker. In my area of research in organ transplantation, patients often take three immunosuppressive agents concomitantly, all of which will contribute toward a PD marker (i.e. reduction of intracellularly expressed IL-2 in mitogen stimulated lymphocytes). Most published work on drug combinations, however, deal with agonistic or antagonistic activity of two drugs as summarized by Jonker et al, 2005. All suggestions or advice are greatly appreciated. Fatemeh Fatemeh Akhlaghi, PharmD, PhD Associate Professor in Pharmacokinetics Biomedical and Pharmaceutical Sciences (BPS) University of Rhode Island 125 Fogarty Hall, 41 Lower College Road Kingston, RI 02881, USA Phone/Fax: (401) 874 9205/(401) 874 2181 Email: fatemeh Laboratory Website: http://www.uri.edu/pharmacy/faculty/aps/akhlaghi

PD of drugs in combination therapy

From: Fatemeh Akhlaghi Date: January 27, 2009 technical
Hi I was wondering if anyone has experience modeling the effect of three separate drugs on the same biomarker. In my area of research in organ transplantation, patients often take three immunosuppressive agents concomitantly, all of which will contribute toward a PD marker (i.e. reduction of intracellularly expressed IL-2 in mitogen stimulated lymphocytes). Most published work on drug combinations, however, deal with agonistic or antagonistic activity of two drugs as summarized by Jonker et al, 2005. All suggestions or advice are greatly appreciated. Fatemeh Fatemeh Akhlaghi, PharmD, PhD Associate Professor in Pharmacokinetics Biomedical and Pharmaceutical Sciences (BPS) University of Rhode Island 125 Fogarty Hall, 41 Lower College Road Kingston, RI 02881, USA Phone/Fax: (401) 874 9205/(401) 874 2181 Email: [email protected] Laboratory Website: http://www.uri.edu/pharmacy/faculty/aps/akhlaghi

RE: PD of drugs in combination therapy

From: Mouksassi Mohamad-Samer Date: January 27, 2009 technical
Dear Fatemeh, Some work regarding three drug combinations has been published regarding anesthetic combinations: Flexible interaction model for complex interactions of multiple anesthetics. Fidler M, Kern SE. Anesthesiology. 2006 Aug;105(2):286-96. Response surface model for anesthetic drug interactions. Minto CF, Schnider TW, Short TG, Gregg KM, Gentilini A, Shafer SL. Anesthesiology. 2000 Jun;92(6):1603-16. These models can handle up to three drugs ( appendix of the before mentioned manuscripts). Hope this helps, Bests, Samer
Quoted reply history
-----Original Message----- From: [email protected] on behalf of Fatemeh Akhlaghi, PhD Sent: Mon 1/26/2009 21:50 To: [email protected] Subject: [NMusers] PD of drugs in combination therapy Hi I was wondering if anyone has experience modeling the effect of three separate drugs on the same biomarker. In my area of research in organ transplantation, patients often take three immunosuppressive agents concomitantly, all of which will contribute toward a PD marker (i.e. reduction of intracellularly expressed IL-2 in mitogen stimulated lymphocytes). Most published work on drug combinations, however, deal with agonistic or antagonistic activity of two drugs as summarized by Jonker et al, 2005. All suggestions or advice are greatly appreciated. Fatemeh Fatemeh Akhlaghi, PharmD, PhD Associate Professor in Pharmacokinetics Biomedical and Pharmaceutical Sciences (BPS) University of Rhode Island 125 Fogarty Hall, 41 Lower College Road Kingston, RI 02881, USA Phone/Fax: (401) 874 9205/(401) 874 2181 Email: [email protected] Laboratory Website: http://www.uri.edu/pharmacy/faculty/aps/akhlaghi