The U.S. Food and Drug Administration (FDA)- in collaboration with the University of Maryland Center of Excellence in Regulatory Science and Innovation (M-CERSI)  hosted a three-day in-person workshop entitled “Physiologically Based Biopharmaceutics Modeling (PBBM) Best Practices for Drug Product Quality: Regulatory and Industry Perspectives” on Tuesday, August 29 through Thursday, August 31, 2023.

The aim of this three-day workshop is to provide a forum for experts from regulatory agencies, innovator and generic drug industry, consultants, academia, and commercial software providers and others in the field of modeling and simulation, to discuss the opportunities and best practices for incorporating drug product quality attributes within PBBM models to support development programs and regulatory submissions. The workshop also aims to identify bottlenecks/gaps which hinder the development and efficient utilization of PBBM models to support drug product quality.

The workshop will include morning presentations of PBBM case studies by global regulatory agencies. Afternoon breakout sessions will provide the opportunity to deep dive into challenges highlighted by the case study presentations and delineate best practices.

Topics: 

  1. Regulatory strategy and applications of PBBM during clinical development, marketing application, and post approval change

  2. Discussions around a framework for reporting PBBM models 

  3. Challenges and considerations in the development of biorelevant/biopredictive inputs such as solubility, dissolution, permeability etc.  for the PBBM model development 

  4. Scientific considerations for establishing verification and validation strategies for PBBM models for their intended purpose of application

Tuesday 29 August Workshop Agenda: Morning Sessions and Afternoon Sessions 

Morning Sessions: Regulators Discussion of Established PBBM Case Studies (Video

Welcome & Workshop Objective Speaker: Bhagwant Rege, FDA  Presentation (PDF)  
PBBM Impact & Future perspective Keynote Speaker: Jennifer Dressman,
Fraunhofer Institute for Translational Medicine
and Pharmacology ITMP
 Presentation (PDF)  
Discussion of Case Study 1 Speaker: Shereeni Veerasingham, HC  Presentation (PDF)  
Discussion of Case Study 2 Speakers:
Anders Lindahl, Swedish MPA
Flora Musuamba Tshinanu, Belgium FAMHP
 Presentation (PDF
Discussion of Case Study 3 Speaker: Rebecca Moody, FDA  Presentation (PDF)  
Discussion of Case Study 9

Speaker: Øyvind Holte, Norwegian Medicines Agency

 Presentation (PDF)  

Round table discussion on case studies (60
min).


Focus areas: best strategies to integrate in
vitro data (solubility, permeability, dissolution,
and precipitation) in PBBM

Regulators:
Rebecca Moody, FDA
Luiza Borges, ANVISA
Mary Malamatari, MHRA
Evangelos Kotzagiorgis, EMA
Shereeni Veerasingham, HC
Shinichi Kijima, PMDA


Moderators:
Paul Seo, FDA
Sumit Arora, Janssen

 

Afternoon Hot Topics/Breakout Sessions: Considerations for In Vitro Data Inputs to PBBM 

Hot topic A: Solubility: From in vitro best
practices to in vivo relevance
Speaker: Deanna Mudie, Lonza

 Presentation (PDF)  

Breakout Session A: Best practices for
solubility as input to PBBM
Moderator 1: Evangelos Kotzagiorgis, EMA
Moderator 2: Claire Mackie, Janssen
Scribe 1: Tessa Carducci, Merck
Scribe 2: Mario Cano Vega, Amgen

 

Hot topic B: Development of biopredictive
dissolution methods
Speaker: Raimar Loebenberg, Univ.of Alberta

 Presentation (PDF)  

Breakout Session B: Dissolution Part 1:
Best practices for data generation as input
to PBBM
Moderator 1: Paul Seo, FDA
Moderator 2: Nikoletta Fotaki, Univ. of Bath
Scribe 1: Parnali Chatterjee, FDA
Scribe 2: Ivy Song, Takeda
 
Hot topic C: Methods for integrating
dissolution in PBBM
Speaker: Xavier Pepin, Simulations Plus  Presentation (PDF)  
Breakout Session C: Dissolution Part 2:
Best practices for modeling dissolution as
input to PBBM
Moderator 1: Luiza Borges, ANVISA
Moderator 2: Cordula Stillhart, Roche
Scribe 1: Grace Chen, Takeda
Scribe 2: Megerle Scherholz, BMS
   
Hot topic D: Precipitation: From in vitro
best practices to in vivo relevance
Speaker: Christian Wagner, Merck group  Presentation (PDF)  
Breakout Session D: Best practices for
integration of precipitation in PBBM
Moderator 1: Poonam Delvadia, FDA
Moderator 2: Mark McAlister, Pfizer
Scribe 1: André Dallman, Bayer
Scribe 2: Elizabeth Gray, FDA
 
Hot topic E: Permeability: From in vitro
best practices to in vivo relevance
Speaker: Hans Lennernäs, Uppsala University  Presentation (PDF)  
Breakout Session E: Best practices for
integration of permeability in PBBM
Moderator 1: Christer Tannergren, AstraZeneca
Moderator 2: Rodrigo Christofoletti, Univ of FL
Scribe 1: Xiaojun Ren, Novartis
Scribe 2: Eleftheria Tsakalozou, FDA
 
Feedback from BO Sessions A- E

Speakers: All Moderators and Scribes from five BO sessions (10 min per session)

 

Wednesday 30 August Workshop Agenda: Morning Sessions and Afternoon Sessions 

PBBM Base Models, Model Validation and Application Steps

Morning Sessions: Regulators Discussion of Established PBBM Case Studies (Video)

Welcome Day 2 Speakers:
Tycho Heimbach, Merck & Co.
Kimberly Raines, FDA
 
PBBM case study Speaker: Tycho Heimbach, Merck & Co.  Presentation (PDF)

Regulatory Discussion/ Case Study 5

Focus: Data Inputs and Collection

Speaker: Mary Malamatari, MHRA  Presentation (PDF)  

Regulatory Discussion/ Case Study 4

Focus: Base Model Development

Speaker: Luiza Borges, ANVISA  Presentation (PDF)  

Regulatory Discussion/ Case Study 6

Focus: Model Validation and Application

Speaker: Shinichi Kijima, PMDA  Presentation (PDF)  

Roundtable discussions on Day 2 case studies
(60 min)


Focus areas
Model Validation, PK and data inputs, IV and oral
data, preclinical data scaling. Independent
clinical data use, non-BE,
Interpolation/Extrapolation

Regulators:
Rebecca Moody, FDA
Luiza Borges, ANVISA
Mary Malamatari, MHRA
Flora Musuamba Tshinanu, Belgium
FAMHP
Shereeni Veerasingham, HC
Shinichi Kijima, PMDA
Paul Seo, FDA


Moderators:
Tycho Heimbach, Merck & Co
Claire Mackie, Janssen

 Presentation (PDF) 

Afternoon: Hot Topics/Breakout Sessions: Considerations for PBBM Models

Hot topic F: Considerations for model
development: data inputs, disposition, and
absorption parameters, dealing with sparse
data
Speakers (10 min each):
Tycho Heimbach, Merck & Co.
David Turner, Certara
Rebecca Moody, FDA

 Presentation (PDF)

 Presentation (PDF) 

 Presentation (PDF)

Breakout Session F Moderator 1: Lanyan (Lucy) Fang, FDA
Moderator 2: Cordula Stillhart, Roche
Scribe 1: Philip Bransford, Vertex
Scribe 2: Xiaojun Ren, Novartis

 

Hot topic G: Considerations for model
validation, model acceptance/verification
criteria in PBBM in view of available clinical
data and model risks (impact and
consequences)
Speaker: Min Li, FDA

 Presentation (PDF)  

Breakout Session G Moderator 1: Shereeni Veerasingham,
HC
Moderator 2: Nikunj Patel, Certara
Scribe 1: David Sperry, Eli Lilly
Scribe 2: Hansong Chen, FDA
 
Hot topic H: Considerations for model
application: VBE trials vs. single
representative modeling, dealing with within
and between subjects variability and
parameter uncertainty
Speakers (15 min each):
Amin Rostami, Univ. of Manchester
Viera Lukacova, Simulations Plus

 Presentation (PDF)

 Presentation (PDF) 

Breakout Session H Moderator 1: Duxin Sun, Univ. of
Michigan
Moderator 2: Jean-Flaubert Nguefack,
Sanofi
Scribe 1: Tessa Carducci, Merck & Co
Scribe 2: Manuela Grimstein, FDA
   
Hot topic I: Considerations for model
application: Establishing safe space and
failure edges, non-BE batches and alternative
IVIVR/C
Speakers (10 min each):
Xavier Pepin, Simulations Plus
Konstantinos Stamatopoulos, GSK
Siri Kalyan Chirumamilla, Certara

 Presentation (PDF)

 Presentation (PDF) 

 Presentation (PDF) 

Breakout Session I Moderator 1: Haritha Mandula, FDA
Moderator 2: Rob Ju, Abbvie
Scribe 1: Michael Wang, Merck & Co
Scribe 2: Joan Zhao, FDA
  
Feedback from BO Sessions F- I Speakers: All Moderators and Scribes
from five BO sessions (10 min per
session)
 

Thursday 31 August Workshop Agenda: Morning Sessions and Afternoon Sessions 

Applications of PBBM - Current State & New Horizons

Morning Sessions: Presentations on Current and Future Applications of PBBM (Video)

Welcome Day 3 Speakers:
Bhagwant Rege, FDA
Amitava Mitra, Kura Oncology
  

Application of PBBM in generic product development

Speaker (virtual):
Sivacharan Kollipara, Dr. Reddy’s Lab
 Presentation (PDF)  

OGD perspective on PBBM applications for generics

Speaker: Fang Wu, FDA  Presentation (PDF)  

Application of virtual BE trials to support

formulation bridging

Speaker: Claire Mackie, Janssen  Presentation (PDF)  
Utility of the advanced oral absorption
modeling for clinical pharmacology
assessment

Speaker: Miyoung Yoon, FDA

 Presentation (PDF)  

Prediction of regional/colon absorption & MR drug product performance

Speaker: Christer Tannergren,
AstraZeneca

 Presentation (PDF)  
Application of PBBM in regulatory
submissions – Clinical, NDA/MAA & post
approval

Speakers: (10 min each)
Kimberly Raines, FDA
Luiza Borges, ANVISA
Mary Malamatari, MHRA
Evangelos Kotzagiorgis, EMA
Shereeni Veerasingham, HC
Hiroyuki Tsuji, PMDA

 Presentation (PDF)

 Presentation (PDF)

 Presentation (PDF)

 Presentation (PDF)

 Presentation (PDF)

 Presentation (PDF) 

 

Afternoon Sessions: Hot Topics/Breakout Sessions: Applications of PBBM

Hot topic K: Introduction & case study on
application of PBBM for generics
Speaker: Yunming Xu, FDA

 Presentation (PDF)  

Breakout Session K: PBBM in generics drug
product development
Moderator 1: Yi-Hsien Cheng, FDA
Moderator 2: Rajendra Singh, Teva
Moderator 3: Maitri Sanghavi, Certara
Scribe 1: Rajesh Savkur, FDA
Scribe 2: Martin Hingle, Novartis

 

Hot topic L: Introduction & case study on
virtual BE applications
Speaker: Amitava Mitra, Kura Oncology

 Presentation (PDF)  

Breakout session L: Virtual BE applications Moderator 1: Andrew Babiskin, FDA
Moderator 2: Amitava Mitra, Kura
Oncology
Scribe 1: Parnali Chatterjee, FDA
Scribe 2: Erik Sjögren, Pharmetheus
 
Hot topic M: Introduction & case study on
safe space & extrapolation
Speaker: Sandra Suarez-Sharp,Simulations Plus  Presentation (PDF)  
Breakout Session M: Safe space & extrapolation Moderator 1: Kimberly Raines, FDA
Moderator 2: Sandra Suarez-Sharp,
Simulations Plus
Scribe 1: Kevin Wei, FDA
Scribe 2: André Dallmann, Bayer
   
Hot topic N: Introduction & case study on MR PBBM applications Speaker: Rebecca Moody, FDA  Presentation (PDF)  
Breakout Session N: Regional absorption &
MR PBBM applications
Moderator 1: Anitha Govada, FDA
Moderator 2: Christer Tannergren,
AstraZeneca
Scribe 1: Anders Lindahl, Swedish MPA
Scribe 2: Sherin Thomas, FDA
 
Feedback Breakout Sessions K-N Speakers: All Moderators and Scribes
from four BO sessions (~10 min per
session)
 
Concluding Remarks Speaker: Greg Rullo, AstraZeneca  Presentation (PDF)  

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