PSI Webinar: Tipping Point Analyses - Introduction & Case Studies

PSI Introduction to Industry Training (ITIT) Course - 2026/2027

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.

AIMS SIG - Open-Source Lunch Bites

Our monthly webinar series allows attendees to gain practical knowledge and skills in open-source coding and tools, with a focus on applications in the pharmaceutical industry. This month’s session, “Graphics Basics,” will introduce the fundamentals of producing graphics using the ggplot2 package.

PSI Career Young Virtual Event (Q2 2026)

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 Book Club: The AI Con – Joint with ASA Book Club

The Guardian described the authors of this book as refreshingly sarcastic! What is sold to us as AI, they announce, is just "a bill of goods": "A few major well-placed players are poised to accumulate significant wealth by extracting value from other people's creative work, personal data, or labour, and replacing quality services with artificial facsimiles."

PSI Book Club: Another Door Opens – Book Club Special Event

This is a Book Club Special Event in response to the changes in our industry and as a supportive move to create community and connection for those navigating redundancy and uncertainty. Read the book in advance of the book club session then join the zoom call to discuss ideas. There will be breakout groups to connect with others, exchange experiences of how the book has helped, and offer support.

PSI Book Club: Change: How organisations achieve hard-to-image results in uncertain and volatile times

Organizations have to adapt to the transforming landscape of our industry to ensure they continue to be successful in the future. Many of us are feeling the impact of organizational change. By reading John P Kotter’s book we can understand about organizational change and learn how to thrive, rather than just survive, through change. Change, by John P Kotter (and his team), is a summary of all that he has learned over his decades of research and leading change. His book describes why many current approaches to change are inadequate and explains why new solutions need to give people a voice and a role in a new, change-embracing organization. Develop your understanding of organisational change and become empowered to be part of your organisation’s change, by reading Change by John P Kotter and joining the Sept-Dec 2025 book club. You will be invited to join facilitated discussions of the concepts and ideas and apply knowledge from the book in-between sessions.

PSI Career Young Virtual Event (Q3 2026)

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 Career Young Virtual Event (Q4 2026)

This networking event is aimed at statisticians that are new to the pharmaceutical industry who wish to meet colleagues from different companies and backgrounds.

Speaker	Biography	Abstract
Juan Abellan	Juan is a statistician by training, by experience and by passion. He studied Maths and Stats and did his PhD at the University of Valencia (Spain), and worked as a research fellow at Imperial College London. He has worked as a statistician in various roles in Public Offices, Academia and Industry in Spain, Germany and the UK. He's currently a GSK fellow and Statistics Director at the Statistics and Data Science Innovation Hub, based in London. His current main interests include the use of Bayesian thinking for better quantitative decision making in drug development, estimands and their estimation in the presence of missing data and the analysis of data collected with digital wearable technologies.	Tipping point sensitivity analysis for time-to-event: a case study in belimumab In this presentation I will illustrate one way of implementing a tipping point analysis (TPA) for a time-to-event endpoint to assess the robustness of results to the censoring-at-random assumption. The method is based on multiple imputation and it assumes the hazard rate post-censoring changes. A grid of values reflecting such changes is considered to vary the hazard rate post-censoring independently for each treatment arm. The (experimental, control) pairs of post-censoring hazard rate changes form the TPA scenarios. Within each of the TPA scenarios, participants who are censored are imputed a time to the event of interest and are administratively censored if the imputed time exceeds the length of the follow-up. Results are combined across imputed datasets using Rubin’s rules. Finally, the plausibility of the scenarios where the results tip is discussed.
Kevin Ding	Kevin has 13 years of industry experience of designing and implementing study design of clinical trials in the areas of both general medicine and oncology. Kevin previously worked in J&J (late phase oncology) and Novartis (late phase immunology) and now is working in AZ as Statistical Science Associate Director for early phase oncology. Kevin has 14 academic journal publications and has special research interest in practical use of estimand and approaches of dealing with missing data in late phase trials. He presented “The Application of Tipping Point Analysis in Clinical Trials” in 2018 JSM meeting.	Practical use of Tipping Point Analysis in regulatory submissions of clinical trials The tipping point analysis (TPA) approach has gained popularity recently as an approach for performing the sensitivity analysis under the missing not at random (MNAR) assumption. This presentation will review why TPA gets popular in clinical trial submissions, its implementation for binary endpoints for time-independent imputation and time-dependent imputation, general procedure of TPA implementation for continuous endpoints, and Interpretation of TPA result based on clinical input. The presentation then shows six real examples of FDA statistical review of submitted NDA/BLAs (all in public domain) that use TPA as sensitivity analysis to illustrate the practical use of this method in real trials and important consideration points from the regulatory perspective.

Speaker	Biography	Abstract
Juan Abellan	Juan is a statistician by training, by experience and by passion. He studied Maths and Stats and did his PhD at the University of Valencia (Spain), and worked as a research fellow at Imperial College London. He has worked as a statistician in various roles in Public Offices, Academia and Industry in Spain, Germany and the UK. He's currently a GSK fellow and Statistics Director at the Statistics and Data Science Innovation Hub, based in London. His current main interests include the use of Bayesian thinking for better quantitative decision making in drug development, estimands and their estimation in the presence of missing data and the analysis of data collected with digital wearable technologies.	Tipping point sensitivity analysis for time-to-event: a case study in belimumab In this presentation I will illustrate one way of implementing a tipping point analysis (TPA) for a time-to-event endpoint to assess the robustness of results to the censoring-at-random assumption. The method is based on multiple imputation and it assumes the hazard rate post-censoring changes. A grid of values reflecting such changes is considered to vary the hazard rate post-censoring independently for each treatment arm. The (experimental, control) pairs of post-censoring hazard rate changes form the TPA scenarios. Within each of the TPA scenarios, participants who are censored are imputed a time to the event of interest and are administratively censored if the imputed time exceeds the length of the follow-up. Results are combined across imputed datasets using Rubin’s rules. Finally, the plausibility of the scenarios where the results tip is discussed.
Kevin Ding	Kevin has 13 years of industry experience of designing and implementing study design of clinical trials in the areas of both general medicine and oncology. Kevin previously worked in J&J (late phase oncology) and Novartis (late phase immunology) and now is working in AZ as Statistical Science Associate Director for early phase oncology. Kevin has 14 academic journal publications and has special research interest in practical use of estimand and approaches of dealing with missing data in late phase trials. He presented “The Application of Tipping Point Analysis in Clinical Trials” in 2018 JSM meeting.	Practical use of Tipping Point Analysis in regulatory submissions of clinical trials The tipping point analysis (TPA) approach has gained popularity recently as an approach for performing the sensitivity analysis under the missing not at random (MNAR) assumption. This presentation will review why TPA gets popular in clinical trial submissions, its implementation for binary endpoints for time-independent imputation and time-dependent imputation, general procedure of TPA implementation for continuous endpoints, and Interpretation of TPA result based on clinical input. The presentation then shows six real examples of FDA statistical review of submitted NDA/BLAs (all in public domain) that use TPA as sensitivity analysis to illustrate the practical use of this method in real trials and important consideration points from the regulatory perspective.

Speaker	Biography	Abstract
Juan Abellan	Juan is a statistician by training, by experience and by passion. He studied Maths and Stats and did his PhD at the University of Valencia (Spain), and worked as a research fellow at Imperial College London. He has worked as a statistician in various roles in Public Offices, Academia and Industry in Spain, Germany and the UK. He's currently a GSK fellow and Statistics Director at the Statistics and Data Science Innovation Hub, based in London. His current main interests include the use of Bayesian thinking for better quantitative decision making in drug development, estimands and their estimation in the presence of missing data and the analysis of data collected with digital wearable technologies.	Tipping point sensitivity analysis for time-to-event: a case study in belimumab In this presentation I will illustrate one way of implementing a tipping point analysis (TPA) for a time-to-event endpoint to assess the robustness of results to the censoring-at-random assumption. The method is based on multiple imputation and it assumes the hazard rate post-censoring changes. A grid of values reflecting such changes is considered to vary the hazard rate post-censoring independently for each treatment arm. The (experimental, control) pairs of post-censoring hazard rate changes form the TPA scenarios. Within each of the TPA scenarios, participants who are censored are imputed a time to the event of interest and are administratively censored if the imputed time exceeds the length of the follow-up. Results are combined across imputed datasets using Rubin’s rules. Finally, the plausibility of the scenarios where the results tip is discussed.
Kevin Ding	Kevin has 13 years of industry experience of designing and implementing study design of clinical trials in the areas of both general medicine and oncology. Kevin previously worked in J&J (late phase oncology) and Novartis (late phase immunology) and now is working in AZ as Statistical Science Associate Director for early phase oncology. Kevin has 14 academic journal publications and has special research interest in practical use of estimand and approaches of dealing with missing data in late phase trials. He presented “The Application of Tipping Point Analysis in Clinical Trials” in 2018 JSM meeting.	Practical use of Tipping Point Analysis in regulatory submissions of clinical trials The tipping point analysis (TPA) approach has gained popularity recently as an approach for performing the sensitivity analysis under the missing not at random (MNAR) assumption. This presentation will review why TPA gets popular in clinical trial submissions, its implementation for binary endpoints for time-independent imputation and time-dependent imputation, general procedure of TPA implementation for continuous endpoints, and Interpretation of TPA result based on clinical input. The presentation then shows six real examples of FDA statistical review of submitted NDA/BLAs (all in public domain) that use TPA as sensitivity analysis to illustrate the practical use of this method in real trials and important consideration points from the regulatory perspective.

Speaker	Biography	Abstract
Juan Abellan	Juan is a statistician by training, by experience and by passion. He studied Maths and Stats and did his PhD at the University of Valencia (Spain), and worked as a research fellow at Imperial College London. He has worked as a statistician in various roles in Public Offices, Academia and Industry in Spain, Germany and the UK. He's currently a GSK fellow and Statistics Director at the Statistics and Data Science Innovation Hub, based in London. His current main interests include the use of Bayesian thinking for better quantitative decision making in drug development, estimands and their estimation in the presence of missing data and the analysis of data collected with digital wearable technologies.	Tipping point sensitivity analysis for time-to-event: a case study in belimumab In this presentation I will illustrate one way of implementing a tipping point analysis (TPA) for a time-to-event endpoint to assess the robustness of results to the censoring-at-random assumption. The method is based on multiple imputation and it assumes the hazard rate post-censoring changes. A grid of values reflecting such changes is considered to vary the hazard rate post-censoring independently for each treatment arm. The (experimental, control) pairs of post-censoring hazard rate changes form the TPA scenarios. Within each of the TPA scenarios, participants who are censored are imputed a time to the event of interest and are administratively censored if the imputed time exceeds the length of the follow-up. Results are combined across imputed datasets using Rubin’s rules. Finally, the plausibility of the scenarios where the results tip is discussed.
Kevin Ding	Kevin has 13 years of industry experience of designing and implementing study design of clinical trials in the areas of both general medicine and oncology. Kevin previously worked in J&J (late phase oncology) and Novartis (late phase immunology) and now is working in AZ as Statistical Science Associate Director for early phase oncology. Kevin has 14 academic journal publications and has special research interest in practical use of estimand and approaches of dealing with missing data in late phase trials. He presented “The Application of Tipping Point Analysis in Clinical Trials” in 2018 JSM meeting.	Practical use of Tipping Point Analysis in regulatory submissions of clinical trials The tipping point analysis (TPA) approach has gained popularity recently as an approach for performing the sensitivity analysis under the missing not at random (MNAR) assumption. This presentation will review why TPA gets popular in clinical trial submissions, its implementation for binary endpoints for time-independent imputation and time-dependent imputation, general procedure of TPA implementation for continuous endpoints, and Interpretation of TPA result based on clinical input. The presentation then shows six real examples of FDA statistical review of submitted NDA/BLAs (all in public domain) that use TPA as sensitivity analysis to illustrate the practical use of this method in real trials and important consideration points from the regulatory perspective.

Speaker	Biography	Abstract
Juan Abellan	Juan is a statistician by training, by experience and by passion. He studied Maths and Stats and did his PhD at the University of Valencia (Spain), and worked as a research fellow at Imperial College London. He has worked as a statistician in various roles in Public Offices, Academia and Industry in Spain, Germany and the UK. He's currently a GSK fellow and Statistics Director at the Statistics and Data Science Innovation Hub, based in London. His current main interests include the use of Bayesian thinking for better quantitative decision making in drug development, estimands and their estimation in the presence of missing data and the analysis of data collected with digital wearable technologies.	Tipping point sensitivity analysis for time-to-event: a case study in belimumab In this presentation I will illustrate one way of implementing a tipping point analysis (TPA) for a time-to-event endpoint to assess the robustness of results to the censoring-at-random assumption. The method is based on multiple imputation and it assumes the hazard rate post-censoring changes. A grid of values reflecting such changes is considered to vary the hazard rate post-censoring independently for each treatment arm. The (experimental, control) pairs of post-censoring hazard rate changes form the TPA scenarios. Within each of the TPA scenarios, participants who are censored are imputed a time to the event of interest and are administratively censored if the imputed time exceeds the length of the follow-up. Results are combined across imputed datasets using Rubin’s rules. Finally, the plausibility of the scenarios where the results tip is discussed.
Kevin Ding	Kevin has 13 years of industry experience of designing and implementing study design of clinical trials in the areas of both general medicine and oncology. Kevin previously worked in J&J (late phase oncology) and Novartis (late phase immunology) and now is working in AZ as Statistical Science Associate Director for early phase oncology. Kevin has 14 academic journal publications and has special research interest in practical use of estimand and approaches of dealing with missing data in late phase trials. He presented “The Application of Tipping Point Analysis in Clinical Trials” in 2018 JSM meeting.	Practical use of Tipping Point Analysis in regulatory submissions of clinical trials The tipping point analysis (TPA) approach has gained popularity recently as an approach for performing the sensitivity analysis under the missing not at random (MNAR) assumption. This presentation will review why TPA gets popular in clinical trial submissions, its implementation for binary endpoints for time-independent imputation and time-dependent imputation, general procedure of TPA implementation for continuous endpoints, and Interpretation of TPA result based on clinical input. The presentation then shows six real examples of FDA statistical review of submitted NDA/BLAs (all in public domain) that use TPA as sensitivity analysis to illustrate the practical use of this method in real trials and important consideration points from the regulatory perspective.

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