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§ Private Profile · Boston, MA, USA
Syntis Bio is a technology company.
Syntis Bio is a clinical-stage biopharmaceutical company developing oral therapies leveraging the small intestine’s biology. Its proprietary SYNT™ (SYNthetic Tissue-lining) technology deploys a transient polydopamine coating in the gastrointestinal tract. This platform enables controlled nutrient uptake, enhanced enzyme activity, and improved drug absorption. SYNT-101, an oral obesity therapy mimicking gastric bypass, is its lead program.
The company emerged from the MIT laboratories of co-founders Robert Langer, Sc.D., and Giovanni Traverso, M.B., B.Chir., Ph.D. Their research on oral drug bioavailability led to the SYNT™ technology. Rahul Dhanda, a co-founder of Sherlock Biosciences, then joined as Chief Executive Officer, contributing vital leadership.
Syntis Bio targets patients with prevalent metabolic conditions like obesity and diabetes, and rare genetic disorders such as homocystinuria. Its vision is to fully harness the small intestine’s therapeutic capabilities, striving to deliver transformative, accessible, sustainable oral solutions for diverse unmet medical needs.
Syntis Bio has raised $86.5M across 3 funding rounds.
Syntis Bio has raised $86.5M in total across 3 funding rounds.
Syntis Bio has raised $86.5M in total across 3 funding rounds.
Syntis Bio's investors include Chenny Zhang, Apollo Labs, Bold Capital Partners, Cerity Partners Ventures, Colorcon Ventures, Mansueto, National Institutes of Health, Portal Innovations, Safar Partners, Woori Venture Partners, Michael Nannizzi, Alumni Ventures.
Syntis Bio is a clinical-stage biopharmaceutical company founded in 2022 and headquartered in Boston, Massachusetts, developing oral therapies that leverage proprietary SYNT™ technology—a synthetic tissue-lining polymer—to target the small intestine for metabolic control, digestion, and drug absorption[1][2][3][4]. The company serves patients with obesity, diabetes, and rare metabolic diseases like homocystinuria (HCU) and maple syrup urine disease (MSUD), addressing unmet needs through once-daily pills that mimic gastric bypass effects (e.g., lead program SYNT-101 blocks duodenal nutrient absorption) or deliver gut-restricted enzymes (e.g., SYNT-202 and SYNT-203)[1][2][3]. With preclinical data from over 100 pig studies showing 70% glucose blocking, 20x enzyme activity improvement, and 4-10x drug bioavailability gains, Syntis has raised $15.5 million and expanded via a 2024 Codexis acquisition, positioning it for IND filings in 2025 and Phase 1 obesity data in March 2026[1][2][3].
Syntis Bio emerged from MIT labs in 2022, co-founded by Robert Langer (biomaterials pioneer), Giovanni Traverso (GI physiology expert), and Rahul Dhanda (current President & CEO with biotech experience)[1][2][5][6]. The idea sparked from a Bill & Melinda Gates Foundation challenge to boost oral drug bioavailability for children in low-resource settings, leading to SYNT™—mussel-inspired polymer chemistry that coats GI tissues transiently for up to 24 hours[3][4][6]. Early traction included preclinical pig studies validating the platform's versatility, a stealth phase launch in 2024 with obesity and rare disease focus, and pipeline expansion through acquiring Codexis enzymes, setting the stage for human trials[1][5].
Syntis rides the explosive demand for oral GLP-1 alternatives and orphan metabolic therapies, capitalizing on small intestine biology as the "gut-brain axis" nexus amid rising obesity (affecting 1B+ globally) and rare disease gaps[1][4]. Timing aligns with post-GLP-1 innovation waves, where injectables dominate but patients seek sustainable pills; market forces like $100B+ obesity sector growth and FDA orphan incentives favor SYNT™'s non-invasive edge over surgery/enzymatics[2][3]. By enabling oral biologics and bioavailability leaps, Syntis influences biotech ecosystems, potentially accelerating GI-targeted platforms from MIT spinouts and drawing strategic investors[1][5][6].
Syntis is primed for inflection with 2025 IND filings for SYNT-202/203 and March 2026 Phase 1 obesity data, expanding into pancreatic insufficiency and ulcers amid oral therapy booms[1][2]. Trends like AI-driven enzyme design and GLP-1 fatigue will amplify SYNT™'s edge, evolving its influence from rare disease pioneer to metabolic blockbuster contender—unlocking the small intestine as biotech's next command center, much like its founders first envisioned for global access[3][4][6].
Syntis Bio has raised $86.5M across 3 funding rounds. Most recently, it raised $38.0M Grant / Series A in July 2025.
| Date | Round | Lead Investors | Other Investors | Status |
|---|---|---|---|---|
| Jul 1, 2025 | $38M Grant | Chenny Zhang | Apollo Labs, Bold Capital Partners, Cerity Partners Ventures, Colorcon Ventures, Mansueto, National Institutes OF Health, Portal Innovations, Safar Partners, Woori Venture Partners, Michael Nannizzi | Announced |
| Jun 1, 2025 | $33M Series A | — | Alumni Ventures, Bold Capital Partners, Digitalis Ventures, Justin Mateen | Announced |
| Jun 11, 2024 | $15.5M Seed | — | Teymour Boutros Ghali, Colorcon Ventures, Portal Innovations, Safar Partners, Touchdown Ventures | Announced |