Synaptic Bio
Immune Synapse Biology • Bispecific Antibody Platform

Next-generation
immune checkpoint
therapeutics for
cancer and
autoimmunity

Synaptic Bio is developing a tetravalent bispecific antibody platform designed around the biology of the immune synapse, with lead asset SYB302 targeting PD-1 and IL-25 for cancer immunotherapy.

Reprogramming
the immune synapse
Scientific Platform

Engineering next-generation checkpoint therapeutics with improved efficacy and tolerability

SYB302 combines checkpoint blockade with IL-25 neutralization in a single bispecific molecule designed to drive PD-1 clustering, immune synapse exclusion, internalization, and degradation.

The platform addresses key limitations of current checkpoint inhibitors, including insufficient responses in colder tumors and immune-related adverse events that lead to treatment discontinuation.

24× improved cold tumor control

Preclinical MSS-CRC models demonstrated substantially greater checkpoint tumor control compared with anti-PD-1 controls.

Dual-action: PD-1 + irAE strategy

IL-25 neutralization is designed to mitigate inflammatory signaling associated with immune-related adverse events.

Pipeline

Building a platform around immune synapse biology

Program
Focus
Modality
Stage
SYB302
Cancer & irAE
PD-1 × IL-25 tetravalent bispecific
IND enabling studies
SYB102
Cancer
PAG checkpoint inhibitor
In vivo studies
SYB201
Cancer
Fc modified PD-1 mAb
In vivo studies
SYB103
Inflammation
IL-25 modulator
In vitro studies
SYB305
Autoimmunity
Bispecific PD-1 agonist
In vitro studies
Leadership

Experienced leadership spanning immunology, oncology, and clinical development

Yotam Levin, MD MBALinkedIn

Yotam Levin, MD MBA

Co-Founder & CEO

Former CEO at NanoPass, medical device and vaccine entrepreneur with deep drug development, translational, and transactional expertise.

Adam Mor, MD PhDLinkedIn

Adam Mor, MD PhD

Co-Founder & CSO

Chief of Rheumatology at Columbia University and pioneer in IL-25 and immune synapse biology.

Roger Pomerantz, MDLinkedIn

Roger Pomerantz, MD

Founding Chair

Former executive leadership roles at Merck, Tibotec, and Seres Therapeutics.

Richard Kenney, MDLinkedIn

Richard Kenney, MD

Chief Development Officer

Clinical, regulatory, and product development leadership across oncology, infectious disease, and immunotherapy programs.

Contact

Partnering and scientific collaboration inquiries

Synaptic Bio is open to strategic partnerships, scientific collaborations, and investor discussions related to immune checkpoint and immune synapse therapeutics.

General inquiries: info@synapticb.io
Business development: bd@synapticb.io
A Delaware Corporation