Thanks, Holly. Good morning, everyone and thank you for joining our first quarter 2022 results call. The first quarter of 2022 was a milestone moment for Agios, as we received the U.S. FDA approval for PYRUKYND, a first-in-class PK activator and the first and only approved disease modifying treatment for adults living with pyruvate kinase deficiency. From the scientists to first hypothesize the potential utility of PK activation, to the chemist who designed our molecule, to the clinical trial coordinators who helped enroll our trials, people across our organization, both past and present, has played a role in this important milestone. In addition, a tremendous number of people outside our organization were instrumental to this effort. Investigators, patients, caregivers, and advocates, all of whom have provided critical insights at every step of the way. Our connection to patients battling this rare, debilitating, lifelong hemolytic anemia, along with the promise of what we can deliver to their treatment options, is the reason we come to work every day. And our connections with patients, healthcare providers, partners, and each other, or how we transformed this idea into a medicine. Looking ahead, we are highly motivated to execute the U.S. Adult PK deficiency launch to the best of our ability. And we continue to believe PK activation has brought potential beyond PK deficiency. A huge focus for our team this year is executing on our aggressive clinical development plan spanning thalassemia, sickle cell disease, pediatric PK deficiency and MDS which Sarah will cover in more detail. I'm also pleased to share that we recently published our 2022 environmental, social, and governance report. In 2020, we published our first ESG report with the intent of disclosing relevant ESG initiatives and metrics from across the company that are aligned not only with our values and our culture but also with the United Nations ' sustainable development goals and the standards for the biotechnology and pharmaceuticals industries set by the Sustainability Accounting Standards Board. Since that time, our ESG program has grown and evolved as we continue to prioritize our commitments to the patients we serve, our employees, our communities, and world and business, ethics, and values. We support an advanced range of the ESG initiatives and encourage you to have a look at our report which is available on our website, agios.com under the corporate social responsibility section. A huge thank you to the cross-functional ESG working group for bringing this year's report to life. To wrap up, our commercial team is enthusiastically in the trenches with our U.S. adult PK deficiency launch, and Richa will update you on those details. Our clinical team is actively enrolling thalassemia and sickle cell patients in those pivotal programs, and Sarah will update you on those. And all our other functional teams are working hard to support the achievement of our 2022 corporate objectives and our strategic vision. With that, I'll now turn it over to Sarah.