GNU Health - GNU Health is a Free/Libre project for health practitioners, health institutions and governments.
SimpleTrials - Web-based clinical trial management system
OpenMRS - OpenMRS is a community-developed, open source, enterprise electronic medical record system platform.
EtQ Reliance - QMS integrates data to reduce risk and ensure compliance.
drchrono - An EHR built for your specialty:
Protocol Manager (CTMS) - Protocol Manager (CTMS) is a clinical trial management system that helps users to manage clinical operations and trials of drugs and vaccines in all the phases.