phlare-platform
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Clasp Therapeutics
Clasp Therapeutics is a clinical-stage immuno-oncology company building off-the-shelf, antibody-like T cell engagers that target cancer driver mutations presented on tumor cells via HLA. Spun out of Johns Hopkins and co-founded by cancer-genetics pioneer Bert Vogelstein and immunotherapy leader Drew Pardoll, Clasp uses its proprietary pHLAre platform to redirect a patient's own T cells to kill tumors with what the company calls absolute specificity - hitting mutant peptides found only on cancer cells while sparing healthy tissue. The company launched publicly in March 2024 with a $150 million Series A and dosed its first patient in April 2025.
Robert Ross
Robert Ross is a medical oncologist turned biotech executive and the founding CEO of Clasp Therapeutics, a Baltimore-based clinical-stage immuno-oncology company building bispecific T cell engagers that target mutated cancer driver peptides presented by HLA with what the company calls absolute specificity. Launched in March 2024 with a $150 million Series A from Third Rock Ventures, Novo Holdings and Catalio Capital, Clasp is commercializing science from Johns Hopkins legends Bert Vogelstein and Drew Pardoll. Ross previously ran Surface Oncology through its acquisition by Coherus, led oncology at bluebird bio, and trained as a physician at Columbia, Harvard, Stanford and UCSF.