Target
Bind DNABII proteins that help stabilize the biofilm’s extracellular DNA scaffold.
We’re developing human antibodies to break down bacterial biofilms and help antibiotics treat persistent infections.
Biofilms form a protective matrix around bacteria, making infections harder for antibiotics and the immune system to clear.

Calpurbatug (TRL1068) is an investigational native human monoclonal antibody designed to target DNABII proteins—the structural supports of a bacterial biofilm.
By removing these supports, TRL1068 can disrupt the biofilm matrix and release bacteria susceptible to antibiotics. We are currently pairing TRL1068 with antibiotics and surgical debridement to treat prosthetic joint infections.
The goal: control infection while preserving the patient’s implant.
Bind DNABII proteins that help stabilize the biofilm’s extracellular DNA scaffold.
Remove structural supports and destabilize the protective biofilm matrix.
Release bacteria from the biofilm so antibiotics can act on susceptible cells.
Our proprietary CellSpot platform identifies rare, naturally occurring human monoclonal antibodies. It is the foundation of TRL1068 and a pipeline of programs targeting bacterial biofilms and viral infections.
We’re raising a Series D to support the next clinical studies and manufacturing of TRL1068.
Talk to our teamManufacturing scale-up, Phase 2 study readout and additional clinical trials.
TRL1068 in prosthetic joint infection.
Fast Track, Orphan Drug and QIDP for TRL1068.
Development and financing information reported in Trellis’s September 2026 investor deck.
Whether you’re an investor, a healthcare provider or a patient, we’d like to hear from you.