Date: Tuesday 3rd October 2023 Time: 14:00-15:30 BST Speakers: Satrajit Roychoudhury (Pfizer), Kenneth Koury (Pfizer), Sebastian Weber (Novartis) and Emma Clark (Roche).
Who is this event intended for? Statisticians in the pharmaceutical industry with an interest in Bayesian methodology. What is the benefit of attending? Attendees will have the opportunity to learn about Bayesian methods and their application in later stage studies.
Cost
This webinar is free of charge to both Members and Non-Members of PSI.
Registration
To register for this event, please click here. Please note: Due to unprecedented demand, access to the live session will operate on a first come, first serve basis - registration does not guarantee attendance for our most popular free events. If you are not able to gain entry to attend the webinar live, there will be a recording made available a week or two after the event. We thank you for your understanding, and for your interest in this topic!
Overview
The use of Bayesian methods within clinical development has greatly increased in recent years. This is particularly true for earlier stage trials but they are also being used in later stage work. In this webinar, three different examples of where Bayesian methodology has been used within confirmatory settings will be provided. The examples describe:
A Bayesian framework used to incorporate several interim analyses to monitor the trial for efficacy and futility, while controlling the overall type 1 error.
Use of the meta-analytic-predictive prior methodology, interpreting study data in the context of trial external data while accounting for between-trial heterogeneity.
Incorporating a hybrid external control arm using Bayesian dynamic borrowing with propensity score matching.
Speaker details
Speakers
Biography
Title & Abstract
Satrajit Roychoudhury (Pfizer Inc.)
Kenneth Koury (Pfizer Inc.)
Dr. Satrajit Roychoudhury is an Executive Director and a member of Statistical Research and Innovation group in Pfizer Inc. He has 17 years of extensive experience in working with different phases of clinical trials for drug and vaccine. His research interest includes survival analysis, use of model-based approaches and Bayesian methods in clinical trials. He served as the industry co-chair for ASA Biopharmaceutical Section Regulatory-Industry Workshop in 2018 and co-chair for DIA/FDA Biostatistics Industry and Regulator Forum in 2023. Satrajit is an elected Fellow of the American Statistical Association and recipient of Royal Statistical Society (RSS)/Statisticians in the Pharmaceutical Industry (PSI) Statistical Excellence in the Pharmaceutical Industry Award in 2023 and Young Statistical Scientist Award from the International Indian Statistical Association in 2019.
Ken Koury is Vice President and Head of Statistics and Modeling for Vaccine Clinical Research and Development at Pfizer. He is responsible for all statistical aspects of global clinical research and development of vaccines to meet licensure and post licensure requirements, and he has over 35 years of experience in drug and vaccine development. Ken has previously served as Co-Chair of the FDA/Industry/Academia Safety Graphics Working Group, on PhRMA’s Biostatistics and Data Management Technical Group, as Program Chair and Chair of the ASA Biopharmaceutical Section, and on the Steering Committee for several Regulatory-Industry Workshops.
Evolution of the COVID-19 vaccine during pandemic: transforming development paradigm
Vaccines are complex biological products which are administered to healthy individuals. Safety is therefore paramount; vaccine development often entails large, time-consuming, and resource-intensive studies to detect rare safety issues and to establish vaccine efficacy. Before a vaccine is licensed and brought to the market, it undergoes a long and rigorous process of research, followed by many years of clinical testing. However, such framework requires modification for COVID-19 vaccine development due to high public health demand. First half of this talk will present the operationally seamless development paradigm used to develop a mRNA vaccine for COVID-19. A Bayesian framework was used to incorporate several interim analyses to monitor the trial for efficacy and futility, while controlling the overall type 1 error. The Bayesian framework enabled us to obtain efficient designs using decision criteria based on a fully probabilistic framework. We’ll focus on the key statistical aspects and regulatory challenges of the design. The second part of the talk will highlight the important post approval steps including determination of booster dose and pediatric development. Publicly disclosed results will be summarized and discussed, as well as key interactions with regulatory authorities and scientific community.
Sebastian Weber (Novartis)
Sebastian Weber is working as Director in the Department of Advanced Methodology and Data Science at Novartis. He has worked extensivley on enabling the use of historical (control) information in clinical trials through consulting and working on tools to facilitate the application of historical control information from trial design to analysis. Furthermore, Sebastian has experience in designing Oncology phase I dose-escalation trails and is also involved in pediatric drug development programs, where he applies extrapolation concepts. His research interests include the application of pharmacometrics in statistics, model-based drug development and application of Bayesian methods for drug development.
Innovative Pediatric Development for Secukinumab in Psoriasis: Faster Patient Access, Reduction of Patients on Control
The pediatric development program of secukinumab in psoriasis was initially designed in a conservative manner based on limited knowledge of the drug. This had been the consequence of being formulated at an early stage of the adult program like it is mandated by law in major regions worldwide. Over time more knowledge on secukinumab accrued and novel innovative approaches as efficacy extrapolation became available as tools for drug development. This provided the opportunity to increase the efficiency of the already running pediatric development program of secukinumab substantially. At the time of the program amendment a study in severe psoriasis had been running and it was planned to be followed by a study in moderate psoriasis. As program amendment two changes were implemented: (i) efficacy extrapolation was introduced by way of a pre-specified predictive check using the data of the placebo-controlled severe study and (ii) the follow-up study in moderate was changed from a placebo-controlled study to an open-label study controlled by historical control data only. The historical control was pre-planned to also include the not yet observed placebo data of the severe study. These two analyses both relied on the meta-analytic-predictive prior methodology allowing to interpret study data in the context of trial external data while accounting for between-trial heterogeneity. This amendment led to the removal of the placebo arm from the moderate trial, a substantial reduction of the overall sample size in this program, and a significantly faster approval of secukinumab for the pediatric psoriasis population.
Emma Clark (Roche)
Emma Clark has 30 years experience as a statistician in the UK Pharmaceutical Industry. Her early experience was for a UK Affiliate, supporting late phase studies across a number of therapeutic areas. Emma joined Roche Products Ltd 14 years ago where she has worked solely on oncology clinical trials in breast cancer and haematology. In 2020/2021, Emma participated in Company collaborations with the FDA on the use of a hybrid external control arm using Bayesian dynamic borrowing in a randomized phase 3 study in Diffuse Large B-Cell Lymphoma.
Bayesian dynamic borrowing of external data for overall survival: Experience of the FDA CID Pilot Program
This talk will focus on our experience of collaborating with the FDA on the design of a phase 3 randomised study in 1L Diffuse Large B-Cell Lymphoma (DLBCL) through the FDA's Complex Innovative Trial Designs (CID) Meeting Program. The study design incorporated a hybrid external control arm using Bayesian dynamic borrowing with propensity score matching for the analysis of overall survival, a key secondary endpoint with label-enabling potential.
Scientific Meetings
PSI Webinar: Application of Bayesian Methods in Confirmatory Trials
Date: Tuesday 3rd October 2023 Time: 14:00-15:30 BST Speakers: Satrajit Roychoudhury (Pfizer), Kenneth Koury (Pfizer), Sebastian Weber (Novartis) and Emma Clark (Roche).
Who is this event intended for? Statisticians in the pharmaceutical industry with an interest in Bayesian methodology. What is the benefit of attending? Attendees will have the opportunity to learn about Bayesian methods and their application in later stage studies.
Cost
This webinar is free of charge to both Members and Non-Members of PSI.
Registration
To register for this event, please click here. Please note: Due to unprecedented demand, access to the live session will operate on a first come, first serve basis - registration does not guarantee attendance for our most popular free events. If you are not able to gain entry to attend the webinar live, there will be a recording made available a week or two after the event. We thank you for your understanding, and for your interest in this topic!
Overview
The use of Bayesian methods within clinical development has greatly increased in recent years. This is particularly true for earlier stage trials but they are also being used in later stage work. In this webinar, three different examples of where Bayesian methodology has been used within confirmatory settings will be provided. The examples describe:
A Bayesian framework used to incorporate several interim analyses to monitor the trial for efficacy and futility, while controlling the overall type 1 error.
Use of the meta-analytic-predictive prior methodology, interpreting study data in the context of trial external data while accounting for between-trial heterogeneity.
Incorporating a hybrid external control arm using Bayesian dynamic borrowing with propensity score matching.
Speaker details
Speakers
Biography
Title & Abstract
Satrajit Roychoudhury (Pfizer Inc.)
Kenneth Koury (Pfizer Inc.)
Dr. Satrajit Roychoudhury is an Executive Director and a member of Statistical Research and Innovation group in Pfizer Inc. He has 17 years of extensive experience in working with different phases of clinical trials for drug and vaccine. His research interest includes survival analysis, use of model-based approaches and Bayesian methods in clinical trials. He served as the industry co-chair for ASA Biopharmaceutical Section Regulatory-Industry Workshop in 2018 and co-chair for DIA/FDA Biostatistics Industry and Regulator Forum in 2023. Satrajit is an elected Fellow of the American Statistical Association and recipient of Royal Statistical Society (RSS)/Statisticians in the Pharmaceutical Industry (PSI) Statistical Excellence in the Pharmaceutical Industry Award in 2023 and Young Statistical Scientist Award from the International Indian Statistical Association in 2019.
Ken Koury is Vice President and Head of Statistics and Modeling for Vaccine Clinical Research and Development at Pfizer. He is responsible for all statistical aspects of global clinical research and development of vaccines to meet licensure and post licensure requirements, and he has over 35 years of experience in drug and vaccine development. Ken has previously served as Co-Chair of the FDA/Industry/Academia Safety Graphics Working Group, on PhRMA’s Biostatistics and Data Management Technical Group, as Program Chair and Chair of the ASA Biopharmaceutical Section, and on the Steering Committee for several Regulatory-Industry Workshops.
Evolution of the COVID-19 vaccine during pandemic: transforming development paradigm
Vaccines are complex biological products which are administered to healthy individuals. Safety is therefore paramount; vaccine development often entails large, time-consuming, and resource-intensive studies to detect rare safety issues and to establish vaccine efficacy. Before a vaccine is licensed and brought to the market, it undergoes a long and rigorous process of research, followed by many years of clinical testing. However, such framework requires modification for COVID-19 vaccine development due to high public health demand. First half of this talk will present the operationally seamless development paradigm used to develop a mRNA vaccine for COVID-19. A Bayesian framework was used to incorporate several interim analyses to monitor the trial for efficacy and futility, while controlling the overall type 1 error. The Bayesian framework enabled us to obtain efficient designs using decision criteria based on a fully probabilistic framework. We’ll focus on the key statistical aspects and regulatory challenges of the design. The second part of the talk will highlight the important post approval steps including determination of booster dose and pediatric development. Publicly disclosed results will be summarized and discussed, as well as key interactions with regulatory authorities and scientific community.
Sebastian Weber (Novartis)
Sebastian Weber is working as Director in the Department of Advanced Methodology and Data Science at Novartis. He has worked extensivley on enabling the use of historical (control) information in clinical trials through consulting and working on tools to facilitate the application of historical control information from trial design to analysis. Furthermore, Sebastian has experience in designing Oncology phase I dose-escalation trails and is also involved in pediatric drug development programs, where he applies extrapolation concepts. His research interests include the application of pharmacometrics in statistics, model-based drug development and application of Bayesian methods for drug development.
Innovative Pediatric Development for Secukinumab in Psoriasis: Faster Patient Access, Reduction of Patients on Control
The pediatric development program of secukinumab in psoriasis was initially designed in a conservative manner based on limited knowledge of the drug. This had been the consequence of being formulated at an early stage of the adult program like it is mandated by law in major regions worldwide. Over time more knowledge on secukinumab accrued and novel innovative approaches as efficacy extrapolation became available as tools for drug development. This provided the opportunity to increase the efficiency of the already running pediatric development program of secukinumab substantially. At the time of the program amendment a study in severe psoriasis had been running and it was planned to be followed by a study in moderate psoriasis. As program amendment two changes were implemented: (i) efficacy extrapolation was introduced by way of a pre-specified predictive check using the data of the placebo-controlled severe study and (ii) the follow-up study in moderate was changed from a placebo-controlled study to an open-label study controlled by historical control data only. The historical control was pre-planned to also include the not yet observed placebo data of the severe study. These two analyses both relied on the meta-analytic-predictive prior methodology allowing to interpret study data in the context of trial external data while accounting for between-trial heterogeneity. This amendment led to the removal of the placebo arm from the moderate trial, a substantial reduction of the overall sample size in this program, and a significantly faster approval of secukinumab for the pediatric psoriasis population.
Emma Clark (Roche)
Emma Clark has 30 years experience as a statistician in the UK Pharmaceutical Industry. Her early experience was for a UK Affiliate, supporting late phase studies across a number of therapeutic areas. Emma joined Roche Products Ltd 14 years ago where she has worked solely on oncology clinical trials in breast cancer and haematology. In 2020/2021, Emma participated in Company collaborations with the FDA on the use of a hybrid external control arm using Bayesian dynamic borrowing in a randomized phase 3 study in Diffuse Large B-Cell Lymphoma.
Bayesian dynamic borrowing of external data for overall survival: Experience of the FDA CID Pilot Program
This talk will focus on our experience of collaborating with the FDA on the design of a phase 3 randomised study in 1L Diffuse Large B-Cell Lymphoma (DLBCL) through the FDA's Complex Innovative Trial Designs (CID) Meeting Program. The study design incorporated a hybrid external control arm using Bayesian dynamic borrowing with propensity score matching for the analysis of overall survival, a key secondary endpoint with label-enabling potential.
Training Courses
PSI Webinar: Application of Bayesian Methods in Confirmatory Trials
Date: Tuesday 3rd October 2023 Time: 14:00-15:30 BST Speakers: Satrajit Roychoudhury (Pfizer), Kenneth Koury (Pfizer), Sebastian Weber (Novartis) and Emma Clark (Roche).
Who is this event intended for? Statisticians in the pharmaceutical industry with an interest in Bayesian methodology. What is the benefit of attending? Attendees will have the opportunity to learn about Bayesian methods and their application in later stage studies.
Cost
This webinar is free of charge to both Members and Non-Members of PSI.
Registration
To register for this event, please click here. Please note: Due to unprecedented demand, access to the live session will operate on a first come, first serve basis - registration does not guarantee attendance for our most popular free events. If you are not able to gain entry to attend the webinar live, there will be a recording made available a week or two after the event. We thank you for your understanding, and for your interest in this topic!
Overview
The use of Bayesian methods within clinical development has greatly increased in recent years. This is particularly true for earlier stage trials but they are also being used in later stage work. In this webinar, three different examples of where Bayesian methodology has been used within confirmatory settings will be provided. The examples describe:
A Bayesian framework used to incorporate several interim analyses to monitor the trial for efficacy and futility, while controlling the overall type 1 error.
Use of the meta-analytic-predictive prior methodology, interpreting study data in the context of trial external data while accounting for between-trial heterogeneity.
Incorporating a hybrid external control arm using Bayesian dynamic borrowing with propensity score matching.
Speaker details
Speakers
Biography
Title & Abstract
Satrajit Roychoudhury (Pfizer Inc.)
Kenneth Koury (Pfizer Inc.)
Dr. Satrajit Roychoudhury is an Executive Director and a member of Statistical Research and Innovation group in Pfizer Inc. He has 17 years of extensive experience in working with different phases of clinical trials for drug and vaccine. His research interest includes survival analysis, use of model-based approaches and Bayesian methods in clinical trials. He served as the industry co-chair for ASA Biopharmaceutical Section Regulatory-Industry Workshop in 2018 and co-chair for DIA/FDA Biostatistics Industry and Regulator Forum in 2023. Satrajit is an elected Fellow of the American Statistical Association and recipient of Royal Statistical Society (RSS)/Statisticians in the Pharmaceutical Industry (PSI) Statistical Excellence in the Pharmaceutical Industry Award in 2023 and Young Statistical Scientist Award from the International Indian Statistical Association in 2019.
Ken Koury is Vice President and Head of Statistics and Modeling for Vaccine Clinical Research and Development at Pfizer. He is responsible for all statistical aspects of global clinical research and development of vaccines to meet licensure and post licensure requirements, and he has over 35 years of experience in drug and vaccine development. Ken has previously served as Co-Chair of the FDA/Industry/Academia Safety Graphics Working Group, on PhRMA’s Biostatistics and Data Management Technical Group, as Program Chair and Chair of the ASA Biopharmaceutical Section, and on the Steering Committee for several Regulatory-Industry Workshops.
Evolution of the COVID-19 vaccine during pandemic: transforming development paradigm
Vaccines are complex biological products which are administered to healthy individuals. Safety is therefore paramount; vaccine development often entails large, time-consuming, and resource-intensive studies to detect rare safety issues and to establish vaccine efficacy. Before a vaccine is licensed and brought to the market, it undergoes a long and rigorous process of research, followed by many years of clinical testing. However, such framework requires modification for COVID-19 vaccine development due to high public health demand. First half of this talk will present the operationally seamless development paradigm used to develop a mRNA vaccine for COVID-19. A Bayesian framework was used to incorporate several interim analyses to monitor the trial for efficacy and futility, while controlling the overall type 1 error. The Bayesian framework enabled us to obtain efficient designs using decision criteria based on a fully probabilistic framework. We’ll focus on the key statistical aspects and regulatory challenges of the design. The second part of the talk will highlight the important post approval steps including determination of booster dose and pediatric development. Publicly disclosed results will be summarized and discussed, as well as key interactions with regulatory authorities and scientific community.
Sebastian Weber (Novartis)
Sebastian Weber is working as Director in the Department of Advanced Methodology and Data Science at Novartis. He has worked extensivley on enabling the use of historical (control) information in clinical trials through consulting and working on tools to facilitate the application of historical control information from trial design to analysis. Furthermore, Sebastian has experience in designing Oncology phase I dose-escalation trails and is also involved in pediatric drug development programs, where he applies extrapolation concepts. His research interests include the application of pharmacometrics in statistics, model-based drug development and application of Bayesian methods for drug development.
Innovative Pediatric Development for Secukinumab in Psoriasis: Faster Patient Access, Reduction of Patients on Control
The pediatric development program of secukinumab in psoriasis was initially designed in a conservative manner based on limited knowledge of the drug. This had been the consequence of being formulated at an early stage of the adult program like it is mandated by law in major regions worldwide. Over time more knowledge on secukinumab accrued and novel innovative approaches as efficacy extrapolation became available as tools for drug development. This provided the opportunity to increase the efficiency of the already running pediatric development program of secukinumab substantially. At the time of the program amendment a study in severe psoriasis had been running and it was planned to be followed by a study in moderate psoriasis. As program amendment two changes were implemented: (i) efficacy extrapolation was introduced by way of a pre-specified predictive check using the data of the placebo-controlled severe study and (ii) the follow-up study in moderate was changed from a placebo-controlled study to an open-label study controlled by historical control data only. The historical control was pre-planned to also include the not yet observed placebo data of the severe study. These two analyses both relied on the meta-analytic-predictive prior methodology allowing to interpret study data in the context of trial external data while accounting for between-trial heterogeneity. This amendment led to the removal of the placebo arm from the moderate trial, a substantial reduction of the overall sample size in this program, and a significantly faster approval of secukinumab for the pediatric psoriasis population.
Emma Clark (Roche)
Emma Clark has 30 years experience as a statistician in the UK Pharmaceutical Industry. Her early experience was for a UK Affiliate, supporting late phase studies across a number of therapeutic areas. Emma joined Roche Products Ltd 14 years ago where she has worked solely on oncology clinical trials in breast cancer and haematology. In 2020/2021, Emma participated in Company collaborations with the FDA on the use of a hybrid external control arm using Bayesian dynamic borrowing in a randomized phase 3 study in Diffuse Large B-Cell Lymphoma.
Bayesian dynamic borrowing of external data for overall survival: Experience of the FDA CID Pilot Program
This talk will focus on our experience of collaborating with the FDA on the design of a phase 3 randomised study in 1L Diffuse Large B-Cell Lymphoma (DLBCL) through the FDA's Complex Innovative Trial Designs (CID) Meeting Program. The study design incorporated a hybrid external control arm using Bayesian dynamic borrowing with propensity score matching for the analysis of overall survival, a key secondary endpoint with label-enabling potential.
Journal Club
PSI Webinar: Application of Bayesian Methods in Confirmatory Trials
Date: Tuesday 3rd October 2023 Time: 14:00-15:30 BST Speakers: Satrajit Roychoudhury (Pfizer), Kenneth Koury (Pfizer), Sebastian Weber (Novartis) and Emma Clark (Roche).
Who is this event intended for? Statisticians in the pharmaceutical industry with an interest in Bayesian methodology. What is the benefit of attending? Attendees will have the opportunity to learn about Bayesian methods and their application in later stage studies.
Cost
This webinar is free of charge to both Members and Non-Members of PSI.
Registration
To register for this event, please click here. Please note: Due to unprecedented demand, access to the live session will operate on a first come, first serve basis - registration does not guarantee attendance for our most popular free events. If you are not able to gain entry to attend the webinar live, there will be a recording made available a week or two after the event. We thank you for your understanding, and for your interest in this topic!
Overview
The use of Bayesian methods within clinical development has greatly increased in recent years. This is particularly true for earlier stage trials but they are also being used in later stage work. In this webinar, three different examples of where Bayesian methodology has been used within confirmatory settings will be provided. The examples describe:
A Bayesian framework used to incorporate several interim analyses to monitor the trial for efficacy and futility, while controlling the overall type 1 error.
Use of the meta-analytic-predictive prior methodology, interpreting study data in the context of trial external data while accounting for between-trial heterogeneity.
Incorporating a hybrid external control arm using Bayesian dynamic borrowing with propensity score matching.
Speaker details
Speakers
Biography
Title & Abstract
Satrajit Roychoudhury (Pfizer Inc.)
Kenneth Koury (Pfizer Inc.)
Dr. Satrajit Roychoudhury is an Executive Director and a member of Statistical Research and Innovation group in Pfizer Inc. He has 17 years of extensive experience in working with different phases of clinical trials for drug and vaccine. His research interest includes survival analysis, use of model-based approaches and Bayesian methods in clinical trials. He served as the industry co-chair for ASA Biopharmaceutical Section Regulatory-Industry Workshop in 2018 and co-chair for DIA/FDA Biostatistics Industry and Regulator Forum in 2023. Satrajit is an elected Fellow of the American Statistical Association and recipient of Royal Statistical Society (RSS)/Statisticians in the Pharmaceutical Industry (PSI) Statistical Excellence in the Pharmaceutical Industry Award in 2023 and Young Statistical Scientist Award from the International Indian Statistical Association in 2019.
Ken Koury is Vice President and Head of Statistics and Modeling for Vaccine Clinical Research and Development at Pfizer. He is responsible for all statistical aspects of global clinical research and development of vaccines to meet licensure and post licensure requirements, and he has over 35 years of experience in drug and vaccine development. Ken has previously served as Co-Chair of the FDA/Industry/Academia Safety Graphics Working Group, on PhRMA’s Biostatistics and Data Management Technical Group, as Program Chair and Chair of the ASA Biopharmaceutical Section, and on the Steering Committee for several Regulatory-Industry Workshops.
Evolution of the COVID-19 vaccine during pandemic: transforming development paradigm
Vaccines are complex biological products which are administered to healthy individuals. Safety is therefore paramount; vaccine development often entails large, time-consuming, and resource-intensive studies to detect rare safety issues and to establish vaccine efficacy. Before a vaccine is licensed and brought to the market, it undergoes a long and rigorous process of research, followed by many years of clinical testing. However, such framework requires modification for COVID-19 vaccine development due to high public health demand. First half of this talk will present the operationally seamless development paradigm used to develop a mRNA vaccine for COVID-19. A Bayesian framework was used to incorporate several interim analyses to monitor the trial for efficacy and futility, while controlling the overall type 1 error. The Bayesian framework enabled us to obtain efficient designs using decision criteria based on a fully probabilistic framework. We’ll focus on the key statistical aspects and regulatory challenges of the design. The second part of the talk will highlight the important post approval steps including determination of booster dose and pediatric development. Publicly disclosed results will be summarized and discussed, as well as key interactions with regulatory authorities and scientific community.
Sebastian Weber (Novartis)
Sebastian Weber is working as Director in the Department of Advanced Methodology and Data Science at Novartis. He has worked extensivley on enabling the use of historical (control) information in clinical trials through consulting and working on tools to facilitate the application of historical control information from trial design to analysis. Furthermore, Sebastian has experience in designing Oncology phase I dose-escalation trails and is also involved in pediatric drug development programs, where he applies extrapolation concepts. His research interests include the application of pharmacometrics in statistics, model-based drug development and application of Bayesian methods for drug development.
Innovative Pediatric Development for Secukinumab in Psoriasis: Faster Patient Access, Reduction of Patients on Control
The pediatric development program of secukinumab in psoriasis was initially designed in a conservative manner based on limited knowledge of the drug. This had been the consequence of being formulated at an early stage of the adult program like it is mandated by law in major regions worldwide. Over time more knowledge on secukinumab accrued and novel innovative approaches as efficacy extrapolation became available as tools for drug development. This provided the opportunity to increase the efficiency of the already running pediatric development program of secukinumab substantially. At the time of the program amendment a study in severe psoriasis had been running and it was planned to be followed by a study in moderate psoriasis. As program amendment two changes were implemented: (i) efficacy extrapolation was introduced by way of a pre-specified predictive check using the data of the placebo-controlled severe study and (ii) the follow-up study in moderate was changed from a placebo-controlled study to an open-label study controlled by historical control data only. The historical control was pre-planned to also include the not yet observed placebo data of the severe study. These two analyses both relied on the meta-analytic-predictive prior methodology allowing to interpret study data in the context of trial external data while accounting for between-trial heterogeneity. This amendment led to the removal of the placebo arm from the moderate trial, a substantial reduction of the overall sample size in this program, and a significantly faster approval of secukinumab for the pediatric psoriasis population.
Emma Clark (Roche)
Emma Clark has 30 years experience as a statistician in the UK Pharmaceutical Industry. Her early experience was for a UK Affiliate, supporting late phase studies across a number of therapeutic areas. Emma joined Roche Products Ltd 14 years ago where she has worked solely on oncology clinical trials in breast cancer and haematology. In 2020/2021, Emma participated in Company collaborations with the FDA on the use of a hybrid external control arm using Bayesian dynamic borrowing in a randomized phase 3 study in Diffuse Large B-Cell Lymphoma.
Bayesian dynamic borrowing of external data for overall survival: Experience of the FDA CID Pilot Program
This talk will focus on our experience of collaborating with the FDA on the design of a phase 3 randomised study in 1L Diffuse Large B-Cell Lymphoma (DLBCL) through the FDA's Complex Innovative Trial Designs (CID) Meeting Program. The study design incorporated a hybrid external control arm using Bayesian dynamic borrowing with propensity score matching for the analysis of overall survival, a key secondary endpoint with label-enabling potential.
Webinars
PSI Webinar: Application of Bayesian Methods in Confirmatory Trials
Date: Tuesday 3rd October 2023 Time: 14:00-15:30 BST Speakers: Satrajit Roychoudhury (Pfizer), Kenneth Koury (Pfizer), Sebastian Weber (Novartis) and Emma Clark (Roche).
Who is this event intended for? Statisticians in the pharmaceutical industry with an interest in Bayesian methodology. What is the benefit of attending? Attendees will have the opportunity to learn about Bayesian methods and their application in later stage studies.
Cost
This webinar is free of charge to both Members and Non-Members of PSI.
Registration
To register for this event, please click here. Please note: Due to unprecedented demand, access to the live session will operate on a first come, first serve basis - registration does not guarantee attendance for our most popular free events. If you are not able to gain entry to attend the webinar live, there will be a recording made available a week or two after the event. We thank you for your understanding, and for your interest in this topic!
Overview
The use of Bayesian methods within clinical development has greatly increased in recent years. This is particularly true for earlier stage trials but they are also being used in later stage work. In this webinar, three different examples of where Bayesian methodology has been used within confirmatory settings will be provided. The examples describe:
A Bayesian framework used to incorporate several interim analyses to monitor the trial for efficacy and futility, while controlling the overall type 1 error.
Use of the meta-analytic-predictive prior methodology, interpreting study data in the context of trial external data while accounting for between-trial heterogeneity.
Incorporating a hybrid external control arm using Bayesian dynamic borrowing with propensity score matching.
Speaker details
Speakers
Biography
Title & Abstract
Satrajit Roychoudhury (Pfizer Inc.)
Kenneth Koury (Pfizer Inc.)
Dr. Satrajit Roychoudhury is an Executive Director and a member of Statistical Research and Innovation group in Pfizer Inc. He has 17 years of extensive experience in working with different phases of clinical trials for drug and vaccine. His research interest includes survival analysis, use of model-based approaches and Bayesian methods in clinical trials. He served as the industry co-chair for ASA Biopharmaceutical Section Regulatory-Industry Workshop in 2018 and co-chair for DIA/FDA Biostatistics Industry and Regulator Forum in 2023. Satrajit is an elected Fellow of the American Statistical Association and recipient of Royal Statistical Society (RSS)/Statisticians in the Pharmaceutical Industry (PSI) Statistical Excellence in the Pharmaceutical Industry Award in 2023 and Young Statistical Scientist Award from the International Indian Statistical Association in 2019.
Ken Koury is Vice President and Head of Statistics and Modeling for Vaccine Clinical Research and Development at Pfizer. He is responsible for all statistical aspects of global clinical research and development of vaccines to meet licensure and post licensure requirements, and he has over 35 years of experience in drug and vaccine development. Ken has previously served as Co-Chair of the FDA/Industry/Academia Safety Graphics Working Group, on PhRMA’s Biostatistics and Data Management Technical Group, as Program Chair and Chair of the ASA Biopharmaceutical Section, and on the Steering Committee for several Regulatory-Industry Workshops.
Evolution of the COVID-19 vaccine during pandemic: transforming development paradigm
Vaccines are complex biological products which are administered to healthy individuals. Safety is therefore paramount; vaccine development often entails large, time-consuming, and resource-intensive studies to detect rare safety issues and to establish vaccine efficacy. Before a vaccine is licensed and brought to the market, it undergoes a long and rigorous process of research, followed by many years of clinical testing. However, such framework requires modification for COVID-19 vaccine development due to high public health demand. First half of this talk will present the operationally seamless development paradigm used to develop a mRNA vaccine for COVID-19. A Bayesian framework was used to incorporate several interim analyses to monitor the trial for efficacy and futility, while controlling the overall type 1 error. The Bayesian framework enabled us to obtain efficient designs using decision criteria based on a fully probabilistic framework. We’ll focus on the key statistical aspects and regulatory challenges of the design. The second part of the talk will highlight the important post approval steps including determination of booster dose and pediatric development. Publicly disclosed results will be summarized and discussed, as well as key interactions with regulatory authorities and scientific community.
Sebastian Weber (Novartis)
Sebastian Weber is working as Director in the Department of Advanced Methodology and Data Science at Novartis. He has worked extensivley on enabling the use of historical (control) information in clinical trials through consulting and working on tools to facilitate the application of historical control information from trial design to analysis. Furthermore, Sebastian has experience in designing Oncology phase I dose-escalation trails and is also involved in pediatric drug development programs, where he applies extrapolation concepts. His research interests include the application of pharmacometrics in statistics, model-based drug development and application of Bayesian methods for drug development.
Innovative Pediatric Development for Secukinumab in Psoriasis: Faster Patient Access, Reduction of Patients on Control
The pediatric development program of secukinumab in psoriasis was initially designed in a conservative manner based on limited knowledge of the drug. This had been the consequence of being formulated at an early stage of the adult program like it is mandated by law in major regions worldwide. Over time more knowledge on secukinumab accrued and novel innovative approaches as efficacy extrapolation became available as tools for drug development. This provided the opportunity to increase the efficiency of the already running pediatric development program of secukinumab substantially. At the time of the program amendment a study in severe psoriasis had been running and it was planned to be followed by a study in moderate psoriasis. As program amendment two changes were implemented: (i) efficacy extrapolation was introduced by way of a pre-specified predictive check using the data of the placebo-controlled severe study and (ii) the follow-up study in moderate was changed from a placebo-controlled study to an open-label study controlled by historical control data only. The historical control was pre-planned to also include the not yet observed placebo data of the severe study. These two analyses both relied on the meta-analytic-predictive prior methodology allowing to interpret study data in the context of trial external data while accounting for between-trial heterogeneity. This amendment led to the removal of the placebo arm from the moderate trial, a substantial reduction of the overall sample size in this program, and a significantly faster approval of secukinumab for the pediatric psoriasis population.
Emma Clark (Roche)
Emma Clark has 30 years experience as a statistician in the UK Pharmaceutical Industry. Her early experience was for a UK Affiliate, supporting late phase studies across a number of therapeutic areas. Emma joined Roche Products Ltd 14 years ago where she has worked solely on oncology clinical trials in breast cancer and haematology. In 2020/2021, Emma participated in Company collaborations with the FDA on the use of a hybrid external control arm using Bayesian dynamic borrowing in a randomized phase 3 study in Diffuse Large B-Cell Lymphoma.
Bayesian dynamic borrowing of external data for overall survival: Experience of the FDA CID Pilot Program
This talk will focus on our experience of collaborating with the FDA on the design of a phase 3 randomised study in 1L Diffuse Large B-Cell Lymphoma (DLBCL) through the FDA's Complex Innovative Trial Designs (CID) Meeting Program. The study design incorporated a hybrid external control arm using Bayesian dynamic borrowing with propensity score matching for the analysis of overall survival, a key secondary endpoint with label-enabling potential.
Careers Meetings
PSI Webinar: Application of Bayesian Methods in Confirmatory Trials
Date: Tuesday 3rd October 2023 Time: 14:00-15:30 BST Speakers: Satrajit Roychoudhury (Pfizer), Kenneth Koury (Pfizer), Sebastian Weber (Novartis) and Emma Clark (Roche).
Who is this event intended for? Statisticians in the pharmaceutical industry with an interest in Bayesian methodology. What is the benefit of attending? Attendees will have the opportunity to learn about Bayesian methods and their application in later stage studies.
Cost
This webinar is free of charge to both Members and Non-Members of PSI.
Registration
To register for this event, please click here. Please note: Due to unprecedented demand, access to the live session will operate on a first come, first serve basis - registration does not guarantee attendance for our most popular free events. If you are not able to gain entry to attend the webinar live, there will be a recording made available a week or two after the event. We thank you for your understanding, and for your interest in this topic!
Overview
The use of Bayesian methods within clinical development has greatly increased in recent years. This is particularly true for earlier stage trials but they are also being used in later stage work. In this webinar, three different examples of where Bayesian methodology has been used within confirmatory settings will be provided. The examples describe:
A Bayesian framework used to incorporate several interim analyses to monitor the trial for efficacy and futility, while controlling the overall type 1 error.
Use of the meta-analytic-predictive prior methodology, interpreting study data in the context of trial external data while accounting for between-trial heterogeneity.
Incorporating a hybrid external control arm using Bayesian dynamic borrowing with propensity score matching.
Speaker details
Speakers
Biography
Title & Abstract
Satrajit Roychoudhury (Pfizer Inc.)
Kenneth Koury (Pfizer Inc.)
Dr. Satrajit Roychoudhury is an Executive Director and a member of Statistical Research and Innovation group in Pfizer Inc. He has 17 years of extensive experience in working with different phases of clinical trials for drug and vaccine. His research interest includes survival analysis, use of model-based approaches and Bayesian methods in clinical trials. He served as the industry co-chair for ASA Biopharmaceutical Section Regulatory-Industry Workshop in 2018 and co-chair for DIA/FDA Biostatistics Industry and Regulator Forum in 2023. Satrajit is an elected Fellow of the American Statistical Association and recipient of Royal Statistical Society (RSS)/Statisticians in the Pharmaceutical Industry (PSI) Statistical Excellence in the Pharmaceutical Industry Award in 2023 and Young Statistical Scientist Award from the International Indian Statistical Association in 2019.
Ken Koury is Vice President and Head of Statistics and Modeling for Vaccine Clinical Research and Development at Pfizer. He is responsible for all statistical aspects of global clinical research and development of vaccines to meet licensure and post licensure requirements, and he has over 35 years of experience in drug and vaccine development. Ken has previously served as Co-Chair of the FDA/Industry/Academia Safety Graphics Working Group, on PhRMA’s Biostatistics and Data Management Technical Group, as Program Chair and Chair of the ASA Biopharmaceutical Section, and on the Steering Committee for several Regulatory-Industry Workshops.
Evolution of the COVID-19 vaccine during pandemic: transforming development paradigm
Vaccines are complex biological products which are administered to healthy individuals. Safety is therefore paramount; vaccine development often entails large, time-consuming, and resource-intensive studies to detect rare safety issues and to establish vaccine efficacy. Before a vaccine is licensed and brought to the market, it undergoes a long and rigorous process of research, followed by many years of clinical testing. However, such framework requires modification for COVID-19 vaccine development due to high public health demand. First half of this talk will present the operationally seamless development paradigm used to develop a mRNA vaccine for COVID-19. A Bayesian framework was used to incorporate several interim analyses to monitor the trial for efficacy and futility, while controlling the overall type 1 error. The Bayesian framework enabled us to obtain efficient designs using decision criteria based on a fully probabilistic framework. We’ll focus on the key statistical aspects and regulatory challenges of the design. The second part of the talk will highlight the important post approval steps including determination of booster dose and pediatric development. Publicly disclosed results will be summarized and discussed, as well as key interactions with regulatory authorities and scientific community.
Sebastian Weber (Novartis)
Sebastian Weber is working as Director in the Department of Advanced Methodology and Data Science at Novartis. He has worked extensivley on enabling the use of historical (control) information in clinical trials through consulting and working on tools to facilitate the application of historical control information from trial design to analysis. Furthermore, Sebastian has experience in designing Oncology phase I dose-escalation trails and is also involved in pediatric drug development programs, where he applies extrapolation concepts. His research interests include the application of pharmacometrics in statistics, model-based drug development and application of Bayesian methods for drug development.
Innovative Pediatric Development for Secukinumab in Psoriasis: Faster Patient Access, Reduction of Patients on Control
The pediatric development program of secukinumab in psoriasis was initially designed in a conservative manner based on limited knowledge of the drug. This had been the consequence of being formulated at an early stage of the adult program like it is mandated by law in major regions worldwide. Over time more knowledge on secukinumab accrued and novel innovative approaches as efficacy extrapolation became available as tools for drug development. This provided the opportunity to increase the efficiency of the already running pediatric development program of secukinumab substantially. At the time of the program amendment a study in severe psoriasis had been running and it was planned to be followed by a study in moderate psoriasis. As program amendment two changes were implemented: (i) efficacy extrapolation was introduced by way of a pre-specified predictive check using the data of the placebo-controlled severe study and (ii) the follow-up study in moderate was changed from a placebo-controlled study to an open-label study controlled by historical control data only. The historical control was pre-planned to also include the not yet observed placebo data of the severe study. These two analyses both relied on the meta-analytic-predictive prior methodology allowing to interpret study data in the context of trial external data while accounting for between-trial heterogeneity. This amendment led to the removal of the placebo arm from the moderate trial, a substantial reduction of the overall sample size in this program, and a significantly faster approval of secukinumab for the pediatric psoriasis population.
Emma Clark (Roche)
Emma Clark has 30 years experience as a statistician in the UK Pharmaceutical Industry. Her early experience was for a UK Affiliate, supporting late phase studies across a number of therapeutic areas. Emma joined Roche Products Ltd 14 years ago where she has worked solely on oncology clinical trials in breast cancer and haematology. In 2020/2021, Emma participated in Company collaborations with the FDA on the use of a hybrid external control arm using Bayesian dynamic borrowing in a randomized phase 3 study in Diffuse Large B-Cell Lymphoma.
Bayesian dynamic borrowing of external data for overall survival: Experience of the FDA CID Pilot Program
This talk will focus on our experience of collaborating with the FDA on the design of a phase 3 randomised study in 1L Diffuse Large B-Cell Lymphoma (DLBCL) through the FDA's Complex Innovative Trial Designs (CID) Meeting Program. The study design incorporated a hybrid external control arm using Bayesian dynamic borrowing with propensity score matching for the analysis of overall survival, a key secondary endpoint with label-enabling potential.
Upcoming Events
PSI Introduction to Industry Training (ITIT) Course - 2025/2026
An introductory course giving an overview of the pharmaceutical industry and the drug development process as a whole, aimed at those with 1-3 years' experience. It comprises of six 2-day sessions covering a range of topics including Research and Development, Toxicology, Data Management and the Role of a CRO, Clinical Trials, Reimbursement, and Marketing.
Joint PSI/EFSPI Visualisation SIG 'Wonderful Wednesday' Webinars
Our monthly webinar explores examples of innovative data visualisations relevant to our day to day work. Each month a new dataset is provided from a clinical trial or other relevant example, and participants are invited to submit a graphic that communicates interesting and relevant characteristics of the data.
PSI Book Club Webinar: Atomic Habits - The Science of Getting Your Act Together
The book club’s usual focus is to read and discuss professional development books. In this short format event you can more easily develop you career without the commitment of reading the whole book - simply listen to the 1-hour long podcast before joining the interactive session on 21 May.
PSI Webinar: Methods and tools integrating clinical trial evidence with historical or real-world data, Bayesian borrowing, and causal inference
This webinar is organised by the RWD SIG and the Historical Data SIG. We will review recent methods, applications, and tools of integrating subject-level-data from clinical trial with external data using Bayesian methods and/or causal inference methods.
This networking event is aimed at statisticians that are new to the pharmaceutical industry who wish to meet colleagues from different companies and backgrounds.
PSI Webinar: Applying the Estimand Framework to Clinical Pharmacology Trials with a Case Study in Bioequivalance
This will be a 45 minute webinar which will explain the topic presented in the published paper, ‘Applying the Estimand Framework to Clinical Pharmacology Trials with a Case Study in Bioequivalance’. There will be 15 minutes for a panel Q&A with some of the authors following the presentation.
PSI Webinar: Methodology and first results of the iRISE (improving Reproducibility In SciencE) consortium
This 1-hour webinar will be an opportunity to hear about the methodology and first results of the iRISE consortium. iRISE is working towards a better understanding of reproducibility and the interventions that work to improve it. At the end of the presentation there will also be the opportunity to ask questions.
One-day PSI/PHUSE Event: Change Management for Moving to R/Open-Source
This one-day event focuses on the comprehensive management of transitioning to R/Open-Source, addressing the challenges and providing actionable insights. Attendees will participate in sessions covering essential topics such as training best practices, creating strategic plans, making the case to senior management, and managing both statistical and programming aspects of the transition.
PSI Book Club - The Art of Explanation: How to Communicate with Clarity and Confidence
Develop your non-technical skills by reading The Art of Explanation by Ros Atkins and joining the Sept-Dec 2025 book club. You will be invited to join facilitated discussions of the concepts and ideas and apply skills from the book in-between sessions.
This course is aimed at biostatisticians with no or some pediatric drug development experience who are interested to further their understanding. We will give you an introduction to the pediatric drug development landscape. This will include identifying the key regulations and processes governing pediatric development, a discussion on the needs and challenges when conducting pediatric research and a focus on the ways to overcome these challenges from a statistical perspective.
This networking event is aimed at statisticians that are new to the pharmaceutical industry who wish to meet colleagues from different companies and backgrounds.
The program will feature insightful sessions led by distinguished invited speakers, alongside a poster session showcasing the latest advancements in the field. Further details will be provided.
This networking event is aimed at statisticians that are new to the pharmaceutical industry who wish to meet colleagues from different companies and backgrounds.
This is an exciting, new opportunity for an experienced Statistician looking to take the next step in their career. Offered as a remote or hybrid position aligned with our site in Harrogate, North Yorkshire.
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