preclinical-biotech
(3)
Pinetree Therapeutics
Pinetree Therapeutics is a Cambridge, Massachusetts biotech founded in 2019 that develops antibody-based targeted protein degraders for cancer. Its AbReptor and TAER-TAB platforms use modular bispecific and multispecific antibodies to hijack the body's own lysosomal machinery and eliminate disease-driving membrane-bound and extracellular proteins - including drug-resistant receptor tyrosine kinases that conventional inhibitors cannot reach. Led by founder and CEO Ho-Juhn Song, Ph.D., the preclinical company has raised roughly $111M to date, struck a $500M+ EGFR-degrader option deal with AstraZeneca, and is advancing lead oncology programs toward Phase I.
Stablix, Inc.
Stablix, Inc. is a preclinical biopharmaceutical company pioneering targeted protein stabilization (TPS), a new therapeutic modality that does the opposite of protein degraders. Its RESTORE platform generates heterobifunctional small molecules called RESTORACs that recruit deubiquitinase enzymes (DUBs) to selectively remove ubiquitin from disease-relevant proteins, restoring deficient proteins to therapeutic levels or correcting aberrant protein function. Co-located in New York City and Boston and founded on science from Columbia University, Stablix has raised roughly $78M and is developing programs in cancer, rare diseases and immunological disorders, including a strategic collaboration with Vertex Pharmaceuticals.
Tiba Biotech
Tiba Biotech is a Cambridge, Massachusetts preclinical biotech spun out of MIT and the Whitehead Institute that is building a new generation of RNA vaccines and therapeutics. Its RNABL platform swaps the fragile lipid nanoparticles behind first-generation mRNA shots for fully synthetic, biodegradable dendrimer nanoparticles that carry larger RNA payloads with less toxicity and gentler cold-chain demands. The company is applying the technology across human vaccines, cancer immunotherapy, gene editing delivery, and animal health, backed by CEPI, BARDA, the NIH, and the NCI.