For the last 20 years, the Faustman Lab has been the leader in investigating the potential of the Bacillus Calmette-Guérin (BCG) vaccine to prevent and reverse autoimmune diseases including type 1 diabetes. This research has advanced from early mouse studies, moving to mechanistic, in vitro trials and now a multi-trial human clinical research program. The Faustman lab showed that BCG boosts a cytokine called TNF, which is beneficial in autoimmune diseases by directly eliminating the autoreactive T cells that attack the pancreas, as well as by inducing beneficial immune cells called regulatory T cells (Tregs).
In 2018 the Faustman Lab announced long term data on BCG treated patients followed for more than five years. All of the patients in the studies showed a durable and significant improvement in HbA1c.