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Modeling Delays in Pharmacokinetics and Pharmacodynamics
Modeling Delays in Pharmacokinetics and Pharmacodynamics
Pharmacodynamic Systems with Delays Research Group will present a one day workshop on Modeling Delays in Pharmacokinetics and Pharmacodynamics using NONMEM on Tuesday June 22 2021. The course will provide an overview of biological systems exhibiting delays, concepts of lifespan driven pharmacodynamic response, modeling of cell maturation, transduction delays, and nonlinear mixed effect lifespan models. Delay differential equations (DDEs) will be introduced and implemented in NONMEM pre-release version 7.5. The course will consist of both lectures and hands-on computer exercises. Source code for DDE based PK/PD models and data will be provided to the participants. For more information contact wk@buffalo.edu.
Location
Location
will be announced soon
Registration
Registration
Please register ASAP in view of the limited course capacity of 30 participants. Confirmation of registration will be returned upon receipt, together with an invoice for the course fee. Registration will not be final until payment is received.
Fees
Registration fees are 150 USD for students, 300 USD for academia/government, and 600 USD for a regular registration. This includes course documentation, mid-session refreshments and lunch.
Cancellations
Cancellations with a full refund may be made until May 21, 2021. No refund is possible on cancellations received after this date. Substitutions may be made at any time.
Registration links:
Instructors
Instructors
Instructors are members of Pharmacodynamic Systems with Delays Research Group
Wojciech Krzyzanski, PhD, MA. Associate Professor at Department of Pharmaceutical Sciences, University at Buffalo. Holds PhD in applied mathematics and MA in pharmacology. Research focus on pharmacokinetics and pharmacodynamics of hematopoietic growth factors and pharmacometrics.
Gilbert Koch, PhD. Gilbert Koch holds a PhD in applied mathematics. He worked as Postdoctoral Associate at the Department of Pharmaceutical Sciences, University at Buffalo and recently joined the Pediatric Pharmacology Group at the University Children´s Hospital in Basel as Senior Research Fellow. His research focus is on delay/lifespan modeling, anti-cancer effects in combination therapy, modeling in pediatric drug development and rare diseases, and target mediated drug disposition with drug-drug interaction.
Robert J. Bauer, PhD. Robert Bauer holds a PhD. in Pharmacology. He heads the Pharmacometrics R&D department at ICON Plc, Gaithersburg, MD., where he and his group maintain the population analysis software NONMEM®, incorporating leading edge algorithms in pharmacometrics. Dr. Bauer’s focus is on developing and implementing mathematical and statistical algorithms for biomedical problems.
Johannes Schropp, PhD. Professor at Department of Mathematics and Statistics, University of Konstanz. Research focus on PK/PD modeling and numerics of dynamical systems.
Agenda
Agenda
8:00am - 8:10am Introduction
8:00am - 8:10am Introduction
8:10am - 8:50am Biological systems exhibiting delays
8:10am - 8:50am Biological systems exhibiting delays
- Hematopoietic cascade
- Immune system response
- Apoptotic cancer cells
8:50am - 9:20 am Concept of lifespan driven pharmacodynamic response
8:50am - 9:20 am Concept of lifespan driven pharmacodynamic response
- Lifespan controlled cell loss
- Point distributed lifespans
- Lifespan PD models with delays
9:20am - 10:00am Introduction to delay differential equations in PK/PD
9:20am - 10:00am Introduction to delay differential equations in PK/PD
- Overview of DDE systems
- Categories of DDE models
10:00am - 10:20am Coffee break
10:00am - 10:20am Coffee break
10:20am - 11:10am Hands-on I
10:20am - 11:10am Hands-on I
- Introduction to ADVAN16 for solving DDEs
- Implementation in NONMEM of PKPD models with DDEs
- Simulation and estimation of parameters in PKPD models with delays
11:10am - 11:50am Basic lifespan based indirect response models
11:10am - 11:50am Basic lifespan based indirect response models
- Drug effect on response production
- Drug effect on lifespan distribution
11:50am - 1:00pm Lunch break
11:50am - 1:00pm Lunch break
1:00pm - 1:50pm Hands-on II
1:00pm - 1:50pm Hands-on II
- Coding basic lifespan indirect model III
- Simulation of repsones for varying dose and TR
1:50pm - 2:20pm Transit compartment models
1:50pm - 2:20pm Transit compartment models
- Transit compartment model properties
- Signal transduction
- Cell maturation and senscence
2:20pm - 3:10 pm Hands-on III
2:20pm - 3:10 pm Hands-on III
- Rheumatoid arthritis model
- Estimation of parameters for escalating single dose data
3:10pm - 3:30pm Coffee break
3:10pm - 3:30pm Coffee break
3:30pm - 4:10pm Lifespan models of hematopoietic systems
3:30pm - 4:10pm Lifespan models of hematopoietic systems
Krzyzanski
- PD models for rHuEPO, PegTPO
- Hematological toxicities and rHu-G-CSF
4:10pm - 5:00pm Hands-on IV
4:10pm - 5:00pm Hands-on IV
- Population model of rHuEPO effect on hemoglobin
- Estimation of population parameters for hemoglobin response
5:00pm - 5:05pm Final comments and remarks
5:00pm - 5:05pm Final comments and remarks
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