Biologic therapies require specialist prescription following a formal biomarker-guided eligibility assessment — they cannot and should not be prescribed by general physicians without this workup. In Delhi NCR, only a small number of specialist respiratory centres have the complete infrastructure to conduct this assessment and manage patients on long-term biologic therapy safely. Pulmovista Clinics, under Dr. Dixit Kumar Thakur, is one of Delhi’s dedicated centres for this level of care.