The Global Coalition for Adaptive Research (GCAR) is an international partnership comprised of some of the world’s foremost clinical, translational, and basic science investigators. Through this collaboration and open exchange of ideas, the ultimate beneficiary—the patient—is supported in the fight against rare and deadly diseases. Useful links: Website: www.gcaresearch.org Facebook: https://www.facebook.com/Global-Coalition-for-Adaptive-Research-140599016703455/ Instagram: https://instagram.com/GCAResearch Twitter: https://twitter.com/GCAResearch