Priscilla S.

Healthcare Investor | MD/MBA

📍 United States🔄 Updated September 2026💼 11 investments📅 7 years investing🗓 Last invested Jan 2023
VC🌍 United States
11
Total investments
4
Early stage
1
Mid stage
1
Late stage
7y
Years active

Portfolio

10 investments · sorted by recency
All investments
Early stage
Mid stage
Late stage
Board Observer
2023
Clasp Therapeutics aims to bring absolute precision to immuno-oncology by developing next-generation T cell engagers (TCEs) that target tumor-specific oncogenic driver mutations across hard-to-treat cancers. Clasp is developing T cell engagers to match both the specific characteristics of the patient’s immune system and the specific genetics of their tumor, enabling the creation of exquisitely personalized, yet off-the-shelf, therapeutics. Built upon academic research in the labs of Bert Vogelstein and Drew Pardoll at Johns Hopkins University, Clasp is backed by prominent life sciences investors including Catalio Capital Management, Third Rock Ventures and Novo Holdings. The company was launched in March 2024 and is based in Cambridge, MA and Rockville, MD. For more information about Clasp, please visit www.clasptx.com
Board Observer
2022
Bonum Therapeutics is focused on a proven technology that utilizes allosteric regulation to create targeted, highly active, and less toxic medicines.
Investor
Apr 2021
Ventyx Biosciences is a clinical-stage biopharmaceutical company developing innovative oral therapies for patients with autoimmune, inflammatory, and neurodegenerative diseases. Our deep expertise in medicinal chemistry, structural biology, and immunology enables the discovery of differentiated small molecule therapeutics for conditions with high unmet medical need, and our extensive experience in clinical development allows the rapid progression of these drugs through clinical trials. Our lead portfolio of NLRP3 inhibitors includes VTX2735, a peripherally restricted NLRP3 inhibitor, and VTX3232, a CNS-penetrant NLRP3 inhibitor. Our inflammatory bowel disease portfolio includes tamuzimod (VTX002), an S1P1R modulator and VTX958, a TYK2 inhibitor, both of which have completed Phase 2 clinical trials.
Board Member
Jan 2021
ADAXION Therapeutics is transforming the future of biotherapeutics by tackling one of the biggest challenges in drug development: immunogenicity. Based in San Diego, the company is developing innovative treatments for immune-mediated and inflammatory diseases using its proprietary ADAx platform. This technology is designed to deimmunize protein therapeutics—preventing the formation of anti-drug antibodies (ADAs) that can compromise efficacy and trigger harmful immune responses. The ADAx platform uses proprietary CD22 ligands to selectively eliminate therapeutic-specific B cells while preserving the full functionality of the biologic and maintaining overall immune competence. This drug-specific approach enables the development of first- and best-in-class biologics that would otherwise be limited by immunogenicity. With a growing pipeline and a focus on addressing unmet medical needs, ADAXION is unlocking the full potential of biologics to enhance therapeutic performance and expand their clinical impact.
Board Observer
2021
Board Observer
2021
Cerebral Therapeutics, Inc. is a clinical-stage pharmaceutical company dedicated to improving the lives of patients living with severe refractory epilepsy and other uncontrolled neurological diseases. Founded by experts in the fields of neurology, neurosurgery, and drug delivery, the Company is pioneering the development of drug-device combination therapies that enable precise targeted delivery to the central nervous system.
Board Observer
2021
Ocelot Bio is a clinical-stage biopharmaceutical company focused on the development of innovative therapeutics designed to significantly improve outcomes for patients with liver disease. The company’s lead clinical candidate, OCE-205, is a therapeutic peptide with a mechanism of action designed to selectively address portal hypertension induced complications of end-stage liver disease (ESLD). These complications include hepatorenal syndrome with acute kidney injury (HRS-AKI) and ascites, both of which may lead to serious and life-threatening outcomes. Ocelot Bio has initiated a Phase 2 clinical trial of OCE-205 in HRS-AKI, and the U.S. Food & Drug Administration (FDA) has granted OCE-205 Orphan Drug Designation in the treatment of hepatorenal syndrome. The company was founded by leading experts in therapeutic peptide development and is backed by a strong syndicate of investors including Venrock, RA Capital Management and Vivo Capital. For more information, visit www.ocelotbio.com.
Board Observer
2020
LENZ Therapeutics is a late-stage clinical company developing innovative ophthalmic pharmaceutical products that improve vision. Our lead program is an aceclidine based eye drop designed to restore the loss of near vision associated with presbyopia. Presbyopia impacts almost two billion people globally and more than 120 million people in the US. LENZ Therapeutics is headquartered in San Diego, California, and is backed by multiple blue-chip venture capital investors.
Board Observer
2019
AffaMed Therapeutics is a clinical stage therapeutic company focused on developing and commercializing transformative pharmaceutical, digital and surgical products that address critical unmet medical needs in ophthalmic, neurological and psychiatric disorders for patients in Greater China and around the world. The leadership team of AffaMed Therapeutics has gained deep industry expertise and an extensive track record in high-quality discovery, clinical development, regulatory affairs, manufacturing, commercial operations, and business development at leading multi-national pharmaceutical companies in China and globally.
early stageBiotechnology
Board Observer
2019
Graybug is a biopharmaceutical company focused on developing transformative medicines for ocular diseases. Founded in 2011 based on technology licensed from the Johns Hopkins University School of Medicine, Graybug has offices in Redwood City, California and Baltimore, Maryland. For more information, please visit www.graybug.vision.
Experience · 13 entries
All (13)
Investments (11)
Board (10)
2023
Board Observer
2023
Clasp Therapeutics aims to bring absolute precision to immuno-oncology by developing next-generation T cell engagers (TCEs) that target tumor-specific oncogenic driver mutations across hard-to-treat cancers. Clasp is developing T cell engagers to match both the specific characteristics of the patient’s immune system and the specific genetics of their tumor, enabling the creation of exquisitely personalized, yet off-the-shelf, therapeutics. Built upon academic research in the labs of Bert Vogelstein and Drew Pardoll at Johns Hopkins University, Clasp is backed by prominent life sciences investors including Catalio Capital Management, Third Rock Ventures and Novo Holdings. The company was launched in March 2024 and is based in Cambridge, MA and Rockville, MD. For more information about Clasp, please visit www.clasptx.com
2022
Board Observer
2022
Bonum Therapeutics is focused on a proven technology that utilizes allosteric regulation to create targeted, highly active, and less toxic medicines.
Board Observer
2022
Inspirna is developing first-in-class drugs that target key pathways in cancer progression. Using a discovery platform developed by Inspirnas founding scientists at Rockefeller University, we have discovered several novel cancer targets that drive tumor growth and cancer progression. These targets regulate key components of the tumor micro-environment including immune cells and cancer metabolism pathways. Our discovery platform - which can be applied to virtually any tumor type - has yielded novel therapeutic targets for several high-unmet need cancer types to date. We aim to develop effective therapies against these targets that will provide durable and meaningful responses for cancer patients that lack effective therapies. Our lead therapy RGX-104 is a small molecule immunotherapy that blocks the ability of tumors to evade the immune system. RGX-104 has obtained FDA Orphan Drug Designation in several solid tumor types of high-unmet need and entered clinical trials in Q4 2016.
2021
Investor
Apr 2021
Ventyx Biosciences is a clinical-stage biopharmaceutical company developing innovative oral therapies for patients with autoimmune, inflammatory, and neurodegenerative diseases. Our deep expertise in medicinal chemistry, structural biology, and immunology enables the discovery of differentiated small molecule therapeutics for conditions with high unmet medical need, and our extensive experience in clinical development allows the rapid progression of these drugs through clinical trials. Our lead portfolio of NLRP3 inhibitors includes VTX2735, a peripherally restricted NLRP3 inhibitor, and VTX3232, a CNS-penetrant NLRP3 inhibitor. Our inflammatory bowel disease portfolio includes tamuzimod (VTX002), an S1P1R modulator and VTX958, a TYK2 inhibitor, both of which have completed Phase 2 clinical trials.
Board Member
Jan 2021
ADAXION Therapeutics is transforming the future of biotherapeutics by tackling one of the biggest challenges in drug development: immunogenicity. Based in San Diego, the company is developing innovative treatments for immune-mediated and inflammatory diseases using its proprietary ADAx platform. This technology is designed to deimmunize protein therapeutics—preventing the formation of anti-drug antibodies (ADAs) that can compromise efficacy and trigger harmful immune responses. The ADAx platform uses proprietary CD22 ligands to selectively eliminate therapeutic-specific B cells while preserving the full functionality of the biologic and maintaining overall immune competence. This drug-specific approach enables the development of first- and best-in-class biologics that would otherwise be limited by immunogenicity. With a growing pipeline and a focus on addressing unmet medical needs, ADAXION is unlocking the full potential of biologics to enhance therapeutic performance and expand their clinical impact.
Show all 13 entries ↓
Investment activity
2019–2023 · 11 investments
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