PDL1 CPS Trainer

Train your eyes on calculating PD-L1 Combined Positive Scores (CPS).

Train your eyes to accurately calculate the PD-L1 Combined Positive Score (CPS) with real-world digital pathology cases.

The PD-L1 CPS Trainer is an interactive, gamified medical education platform designed for pathologists, oncologists, lab professionals, and medical residents. Developed by DiaDeep, this application is built to help clinical professionals master the complexities of PD-L1 scoring, sharpen diagnostic evaluation skills, and reduce interobserver variability across diverse tumor specimens.

Whether you are learning the fundamentals of immunotherapy biomarkers or testing your precision on challenging, borderline cutoff cases, the PD-L1 CPS Trainer turns critical medical training into an engaging, interactive challenge.

Play, learn, track your progress, and see how your scores rank!

KEY FEATURES High-Resolution Whole Slide Imaging (WSI): Experience a seamless virtual microscope experience optimized for mobile and tablet devices. Fluidly pan and zoom from low-power overviews to high-power cellular details (4x to 40x equivalents).

Interactive CPS Challenge Mode: Review real-world clinical tissue specimens, evaluate staining patterns, and calculate the Combined Positive Score (CPS) directly through the digital viewer.

Instant Gold-Standard Validation: Receive immediate feedback on your accuracy. Compare your calculations side-by-side with a consensus "gold standard" score established by senior surgical pathologists.

Diverse Pan-Organ Case Bank: Practice scoring across multiple solid carcinomas—including gastrointestinal, head & neck, cervical, and urothelial tissues—to master tumor-specific staining artifacts and nuances.

Analytical Progress Tracking: Monitor your scoring correlation coefficients and accuracy improvements over time through a dedicated user dashboard.

BUILT BY EXPERTS, BACKED BY EVIDENCE The application's specialized training methodology was created by DiaDeep in close collaboration with Dr. Matthew Cecchini (MD, PhD, FRCPC), a renowned surgical pathologist at London Health Sciences Centre and Assistant Professor at Western University.

This educational platform was made possible through the financial support of Merck Canada Inc. At DiaDeep, we believe every clinical decision matters because we have lived it. This application combines deep clinical pathology expertise with advanced digital tissue workflows to deliver an intuitive training tool that works for day-to-day medical education.

IMPORTANT MEDICAL DISCLAIMER The PD-L1 CPS Trainer is strictly intended for educational, training, and research purposes for healthcare professionals. The opinions expressed within this platform are those of its authors and do not necessarily reflect the views and opinions of Merck Canada Inc. This application is not cleared for primary diagnostic use, does not provide clinical or medical advice, and should never be used as a substitute for professional clinical judgment or established laboratory diagnostic workflows.