AUTHOR=Bakhtiar Shahrzad , Fekadu Julia , Seidel Markus G. , Gambineri Eleonora TITLE=Allogeneic Hematopoietic Stem Cell Transplantation for Congenital Immune Dysregulatory Disorders JOURNAL=Frontiers in Pediatrics VOLUME=Volume 7 - 2019 YEAR=2019 URL=https://www.frontiersin.org/journals/pediatrics/articles/10.3389/fped.2019.00461 DOI=10.3389/fped.2019.00461 ISSN=2296-2360 ABSTRACT=Primary immunodeficiency disorders (PID) affecting immune regulation and mechanisms of self-tolerance have become more visible through recent years. Patients often suffer from treatment refractory multi-organ autoimmunity and complications of long term immune suppressive treatment. There is cumulative evidence for allogeneic stem cell transplantation (alloHSCT) as a curative treatment option for severly affected patients by this disease category. Nevertheless, the underyling detailed pathomechanisms of most of these newly described diseases are not fully understood and often without a reliable genotype-phenotype correlation. Predictive and stratification-relevant tools are not established yet. In this review, we provide a literature-based update on indications and outcomes of alloHSCT for congenital immune dysregulative PID.