Deep Bhattacharya, PhD
Principal Scientist
Pfizer
Deep S. Bhattacharya, PhD is a Principal Scientist in Drug Product Design and Development at Pfizer’s Pharmaceutical R&D site in Andover, Massachusetts, where he has been contributing since 2019. With over eight years of experience in CMC drug product formulation and biopharmaceutical sciences, Deep has led the development of high and ultra-high concentration biologics, gene therapies, recombinant proteins, and vaccine formulations from early-stage research through commercialization.
He specializes in subcutaneous delivery systems, combination product development, and biophysical strategies to enhance drug stability and patient-centric design. Deep has played a pivotal role in cross-functional collaborations across clinical pharmacology, regulatory affairs, market access, and strategic portfolio planning. He has also led regulatory submissions (INDs and BLAs) across global markets and driven successful tech transfers and manufacturing readiness for late-stage programs.
Deep is actively involved in strategic alliances with academic and industry partners, and leads initiatives within the Subcutaneous Consortium to advance IV-to-SC bridging strategies. He is a recognized thought leader with over 35 external presentations and publications, and currently pursuing an MBA to further strengthen his business development and innovation leadership.
His research interests include biophysical characterization of biologics, higher-order structural analysis, subcutaneous assessments, and the integration of scientific and business strategies to accelerate biopharmaceutical innovation.