CHIMERA Challenge 🔬¶

Combining HIstology, Medical Imaging (Radiology), and molEcular Data for Medical pRognosis and diAgnosis.

The CHIMERA Challenge aims to advance precision medicine in cancer care by addressing the critical need for multimodal data integration. Despite significant progress in AI, integrating genomics, pathology, and radiology across clinical departments remains a complex challenge. Clinicians are faced with large, heterogeneous datasets that are difficult to analyze effectively. AI has the potential to unify multimodal data, but several technical barriers remain, such as defining appropriate fusion stages and handling missing modalities.

Why CHIMERA? 🧩¶

🔗 Bridging Modalities for Precision Medicine – Unlike previous challenges focusing on single modalities, CHIMERA introduces a benchmark for multimodal AI models that integrates genomics, histopathology, and radiology. 📊 Focus on Cancer Prognosis – CHIMERA includes prostate cancer and non-invasive bladder cancer (NIBC) datasets to improve recurrence prediction and optimize treatment strategies.

Challenge Scope 🚀¶

Prostate Cancer Recurrence Prediction: Current assessments rely on PSA levels, a controversial biomarker with limited reliability in predicting biochemical recurrence. CHIMERA integrates multiparametric MRI and H&E-stained histopathology slides, routinely used in clinical practice, to enhance recurrence prediction. Deep learning has shown that morphological features in histopathology provide significant prognostic value.

Non-Invasive Bladder Cancer (NIBC) Response Prediction:

50% of NIBC patients fail to respond to BCG treatment, a globally scarce resource. Molecular RNA analysis has been linked to high-risk treatment response and can aid in early treatment decision-making. Integrating genomics, pathology, and imaging can improve prognostic accuracy and patient management.

Timeline 🗓️¶

📢 Challenge Announcement & Registration Opens – April 10, 2025

📂 Training Data Release – April 10, 2025

🛠 Validation Phase Starts – July 1, 2025

📝 Test Set Submission Deadline – August 1, 2025