Save the Date: RPACT Annual Meeting 2026 and Latest Updates

Wednesday, 25 November 2026 | 13:00–16:00 CET | Online
rpact
annual meeting 2026
Author

RPACT Team

Published

July 22, 2026

Dear RPACT Community,

We are pleased to invite you to save the date for this year’s RPACT Annual Meeting:

The Annual Meeting will provide an opportunity to share the latest developments within RPACT, discuss upcoming priorities, and exchange ideas and experiences with the RPACT community.

In the meantime, we would also like to share a brief update on our current activities.

RPACT Code

The first proof-of-concept projects for RPACT Code, our new AI-powered tool, have produced very promising results. We are excited about its potential to support users in working more efficiently with rpact and will share further updates as the project progresses.

Upcoming rpact 4.5.0 release

Following the summer break, we are planning a new release of the rpact package. Version 4.5.0 is expected to include several new features and enhancements:

  • Fixed trial designs: The new getDesignFixed() function provides a convenient way to create fixed, single-stage trial designs.
  • Patient-wise survival simulations: getSimulationMultiArmSurvival() and getSimulationEnrichmentSurvival() will support patient-wise simulations in addition to the existing test-statistic-based approach. This enables more detailed scenarios incorporating individual patient accrual, events, censoring, dropout, and maximum-subject constraints.
  • Configuration through environment variables: rpact options will be configurable through environment variables, supporting reproducible scripts, CI workflows, validation runs, and shared project profiles.
  • Improved boundary displays: Critical values and futility bounds for designs with directionUpper = FALSE will be displayed consistently in the correct direction.
  • Fisher information calculations: The new getFisherInformation() function will calculate the Fisher information at the first planned analysis stage for designs involving means, rates, or survival endpoints.

More information about the new environment-variable functionality is available in the vignette Hidden rpact Features: Options and Environment Variables.

We look forward to sharing more details about these developments and to welcoming you to the RPACT Annual Meeting in November.

Best regards,

The RPACT Team