Federated learning

The Clinical Data Warehouse (CDWH) project, focusing on Swiss hospitals, provides a robust Common Data Model Healthcare (CDMH) solution to harmonize and centralize healthcare records. Powered by Microsoft Azure, this initiative not only ensures compliance with industry standards but also enhances interoperability by aligning with the SNOMED-CT standards, creating a unified framework for fast, efficient, and adaptable healthcare data management.

Swiss hospitalsHealthcare

A consortium of leading US healthcare providers, joined by Microsoft as the technology enabler, has established the Trustworthy & Responsible AI Network (TRAIN) to operationalize responsible and ethical use of artificial intelligence in healthcare delivery. Members include Cleveland Clinic, Duke Health, Johns Hopkins Medicine, Mass General Brigham, Mount Sinai Health System, Northwestern Medicine, and others. The network aims to enhance the quality, safety, and trustworthiness of AI by sharing best practices, registering clinical AI for operational use, providing tools to measure AI outcomes, and creating a federated outcomes registry. The collaboration targets improvement of clinical care quality, reduction of risks from AI deployment, and provision of practical tools to healthcare organizations nationwide for managing AI implementations and mitigating bias. Through this concerted effort, TRAIN promotes safe, reliable, and equitable use of AI, thus improving patient outcomes and establishing trust in the adoption of advanced technology in health settings.

Cleveland ClinicHealthcare

Roche has implemented Azure Confidential Computing to securely analyze sensitive patient data in pharmaceutical research and drug development. By leveraging state-of-the-art security features including clean rooms and Intel SGX-powered Azure DCsv3 VMs, Roche ensures compliance and enhances trust in technology while fostering collaboration with hospitals for clinical studies. This solution creates a secure environment for sharing critical patient data without compromising its confidentiality, embodying Roche's ambition to develop advanced technology-driven, privacy-respecting healthcare innovations.

RocheHealthcare

European healthcare institutions have long struggled to leverage valuable, large-scale health data due to regulatory, technical, and organizational barriers that silo patient data within individual organizations. This article explores how federated health data networks (FHDNs) and federated learning are being implemented in Europe to allow sensitive, decentralized medical data to be securely and collectively analyzed for research, clinical decision support, and precision medicine—without transferring data across borders. Real-world initiatives such as Personal Health Train and Vantage6 illustrate the technical, governance, and trust requirements for such networks and the orchestrator role, highlighting Microsoft’s active involvement in standardization, orchestration, and privacy-by-design solutions. The article details the architectures and value proposition for clinicians, hospitals, pharma, and researchers, including improved access to diverse medical datasets, compliance with privacy regulations, and acceleration of healthcare R&D. Challenges covered include GDPR compliance, technical heterogeneity, incentive alignment, and the need for ongoing collaboration across organizational, national, and industry boundaries. Ultimately, FHDNs are shown to reduce barriers for AI development and enable innovative data-driven healthcare applications at scale in Europe.

Personal Health TrainHealthcare

Kakao Healthcare developed a federated learning-based medical data platform on Google Cloud to enable secure machine learning collaboration across 16 hospitals in Korea without moving patient data outside hospital environments.The platform standardizes disparate hospital medical data and keeps sensitive information securely in each hospital's cloud environment, sharing only model insights with other participants.The federated learning system accelerated prediction of breast cancer recurrence from 2 years to 4 months with improved accuracy, and expanded to 20 hospitals covering 15,000 beds and 20 million patient records.The platform supports digital transformation in hospital data operations, joint medical research, and drug development analytics through secure, collaborative AI model training and data management.

Kakao Healthcare built a cloud-based data platform using Google Cloud AlloyDB to enable high performance and low-cost management of healthcare data, facilitating a collaborative network across multiple hospitals.Dataproc enabled smooth data extraction and integration among hospitals, supporting a federated learning network for secure data sharing while protecting patient privacy.The platform integrates AI services including Gemini and Vertex AI to analyze clinical data, supporting better research, drug development, and healthcare outcomes.Deployed to multiple tertiary general hospitals in South Korea, the platform offers commercial in-memory database performance without hardware expansion, reducing operational complexity and cost, and safely anonymizes patient data in real time.