Our Symphony™ Platform

Coordinating the four signals of anti-tumor immunity from a single injection.

A multimodal, non-oncolytic gene therapy — 1 drug substance, 1 drug product, 1 injection — that turns the tumor itself into a lasting source of multiple coordinated immune signals. Long sought but never achievable, because tumors are poor secretors. FIG changed that.

Signal 1

Antigen recognition

Tumor lysis, antigen release, dendritic-cell recruitment & antigen presentation

Signal 2

Co-stimulation

Dendritic-cell licensing & co-stimulatory receptor agonism

Signal 3

Cytokine support

T-cell / NK-cell activation, survival, polarization & memory support

Signal 4

TME access & metabolism

Hypoxia modulation, vascular/TME remodeling & reversal of suppressive stromal barriers

Four Unlocks

What makes it feasible for the first time.

Two years of research. A multi-layer, wholly owned IP moat. Every historical limitation of non-replicating viral immunotherapy — resolved.

01

Engineered non-native signal peptide

>700-fold tumor secretion. The foundational discovery that lets a non-replicating virus turn a tumor into a bioreactor.

02

Immune-sensing delayed promoter

Initial + delayed promoter systems separating early recruitment and priming from later lysis, checkpoint blockade, and DC licensing.

03

Gene-encoded secretable lysis

Tumor lysis delivered from within the tumor as a staged payload. No prodrug, no device, no repeat dosing.

04

Superpotent constructs

Tumor-anchoring IL-12, CD40 agonist, CTLA-4 antagonist, and PD-L1 antagonist — a complete suite of superpotent, retention-tuned payloads engineered for staged release. Zero licensing overhead.

The Core Insight

Secrete therapy first. Lyse last. Preserve the bioreactor.

Non-replicating HD-Ad delivery avoids reliance on viral-replication-mediated lysis entirely. Initial + delayed promoter systems separate early recruitment and priming from later lysis, checkpoint blockade, and DC licensing — preserving the bioreactor while staging immunity.

Stage 1
Recruit · Prime · Remodel
  • Dendritic-cell recruitment & expansion
  • T-cell and NK recruitment & activation
  • Treg depletion and CTLA-4 antagonism
  • TME remodeling — stroma, hypoxia, TGF-β
Stage 2
Lyse · License · Release
  • PD-L1 checkpoint blockade
  • CD40 superagonism for durable priming
  • T-cell memory, survival & expansion signals
  • Secreted tumor-lysis module
Stage 3
Optional · Modular
  • Indication-specific payload swaps
  • Further-delayed extension layer
  • Tunable lysis kinetics
  • Same architecture, re-pointed
Delivery
Non-replicating HD-Ad
No viral genes — avoids the immune rejection that limits HSV/Ad5.
Tropism
Ad5/F35 chimerism
Orders-of-magnitude better tumor transduction.
Durability
Months of expression
Sustained multimodal payloads from a single intratumoral injection.
Payload Portfolio

10+ payloads. Six functional classes. Secreted in multiple stages.

Secretion of 10+ payloads validated at clinically meaningful levels in tumor-cell models.

The tumor is programmed to robustly secrete a broad portfolio of immune-modulating proteins. Each class is timed to its optimal point in the immune cascade.

Chemokines

Recruit dendritic, CD8 T, and NK cells into the TME. Our DPP4-resistant variants are designed to resist degradation by these enzymes overexpressed by tumors.

Cytokines

Activate and expand T/NK and dendritic cells. Reverse immunosuppression in TME. Delayed cytokines promote survival and immune memory.

TNFSF receptor agonists

Drive dendritic-cell licensing and durable T-cell priming. Enhance T cell survival. Reverse hypoxia and induce Tertiary Lymphoid Structures.

Checkpoint inhibitors

Relieve PD-L1 and CTLA-4 suppression locally, without systemic exposure.

TGFβ trap

Neutralize stromal and regulatory immunosuppression in the tumor bed.

Tumor lysis module

Delayed, secreted tumor-cell killing — no prodrug, no device, no repeat dosing.

Engineered Payloads

Superpotent proteins, purpose-built.

We engineer improved variants of existing molecules to establish wholly owned IP, and build novel proteins from the ground up where needed. Everything is tuned for potency and staged release; TME retention is engineered specifically for systemically toxic payloads such as IL-12 — with no licensing overhead and no inherited ceiling.

TME-anchored · superpotent

Single-chain IL-12

Engineered single-chain IL-12 with a collagen-binding tail — retained in the tumor microenvironment rather than leaking systemically. Substantially more potent than wild-type IL-12.

Durable priming

CD40 superagonist

Proprietary superagonist CD40 module — drives dendritic-cell licensing and long-lived T-cell priming at potencies beyond the intratumoral CD40L therapies in the clinic today.

Local · Treg-depleting

CTLA-4 antagonist

Superpotent anti-CTLA-4 fragment delivered locally — Treg depletion and checkpoint relief inside the tumor, without the systemic toxicity ceiling of IV anti-CTLA-4.

Stage 2 · sustained

PD-L1 blockade

Secreted PD-L1 blocker released during Stage 2, timed to arrive after immune priming — sustaining T-cell function exactly when the tumor tries to shut it down.

In-Vivo Proof of Concept

One dose. Strong primary and distant abscopal control.

Validated in one of the hardest models a tumor can face: aggressive, enzalutamide-resistant mCRPC xenograft, HLA-matched CD34+ humanized SGM3-IL15 mice. An HD-Ad "stuffer" control isolates the effect of the secreted payloads themselves.

Primary Tumor

~5–6×
Lower tumor volume vs untreated control
~3–4×
Lower tumor volume vs HD-Ad stuffer control

Abscopal Tumor

~4–5×
Lower tumor volume vs untreated control
~3–4×
Lower tumor volume vs HD-Ad stuffer control
Safety
100%
Survival through endpoint vs rapid decline in controls
None
Observable toxicity at therapeutic dose
Intellectual Property

Six independent pillars.

100% owned. Multiple independent platform and composition-of-matter claim families.

Secretion engineering
Non-native signal peptides that turn tumor cells into high-output secretors — the foundational unlock for the field.
Multimodal gene-encoded payloads
Intratumoral delivery of multiple secreted therapeutic proteins, including ≥1 secretion-engineered payload.
Logic-gated staged expression
Initial + delayed promoter systems separating early recruitment and priming from later lysis, checkpoint blockade, and DC licensing.
Secretable tumor-lysis modules
Protease-gated pore-forming toxins, tumor-targeted scFv-Fc, and bispecific T-cell engager formats — secreted, not bursting the cell.
Novel multifunctional fusions
Checkpoint and co-stimulatory fusions, DPP4-resistant chemokines, chemokine-cytokine fusions, TGFβ trap + anti-CTLA4/sctriTNFSF fusions, etc.
Superpotent constructs
Including tumor-anchoring IL-12, CD40 agonist, CTLA-4 antagonist, and PD-L1 antagonist.