PLATFORM EXPANSION

Expanding the PSA-Activated Prodrug Platform

Innovex is pursuing a staged strategy to validate PSA-mediated activation, extend the platform to additional payload classes, and explore complementary targeting approaches.

A Staged Platform Strategy

01

Validate the Platform

Establishing rigorous proof-of-concept that PSA-mediated activation can selectively release therapeutic agents in the intended biological environment, providing the scientific foundation for broader development.

02

Expand Payload Options

Extending the platform architecture to accommodate a broader range of therapeutic payloads, increasing versatility and enabling the technology to address diverse disease contexts.

03

Explore Complementary Targeting Approaches

Investigating additional targeting strategies that could work in concert with PSA-mediated activation, broadening the platform’s reach and potential applicability.

Payload Expansion Strategy — illustrative roadmap showing four steps: Retain Trigger Logic, Expand Payload Options, Prioritize Candidates, and Broaden Platform Potential. Undisclosed implementation details omitted.

How Expansion Opportunities Will Be Prioritized

01

Systemic Stability

Candidate payloads must demonstrate sufficient stability in circulation to reach the target site intact, limiting premature degradation or off-target activity before enzymatic activation occurs.

02

PSA-Dependent Activation

Each payload class is evaluated for compatibility with PSA-mediated cleavage, ensuring that therapeutic release remains tightly coupled to the enzymatic trigger that defines the platform’s selectivity.

03

Tumor Exposure

Prioritized payloads must achieve meaningful concentrations within the tumor microenvironment following activation, supporting the premise that localized release can translate into relevant biological effect.

04

Therapeutic-Index Potential

The overall balance between anticipated efficacy and tolerability is assessed across candidate payload classes, with preference given to those offering the widest potential separation between therapeutic and adverse effects.

Building Through Focused Execution

Innovex will advance platform-expansion opportunities selectively, guided by scientific differentiation, development feasibility, and therapeutic potential.