Lupus is an often misunderstood and misdiagnosed autoimmune disease. While some 1.5 million people—mostly women—have lupus, it can take years for someone with the disease to get a correct diagnosis. We spoke to Susan Manzi, medical director of the Lupus Foundation of America and Co-founder and director of the Lupus Center of Excellence at Allegheny Health Network, about the disease, why there are so few treatments available today, and why she holds out hope for the pipeline of new therapies moving through the clinic.