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Value Proposition of Next Gen PD-L1 + CTLA-4 Antibodies
The Client
- Commercial biotech mono and bispecific platform company has a wide-range of targets that they hope to target with their next-gen bispecific-antibody
Challenge
- PD-1/L1 + CTLA-4 antibody combo has limitations due to the high irAEs that the combo causes, but with increasing competition by other
- PD-1/L1 combos and sequencing/ lowering dose of existing PD-1 +CTLA-4 combo, the client was unsure whether they could build a credible, financeable story around the clinical value of next gen PD-L1 + CTLA-4 programs, whether combination agents or bispecific.
Approach
- Dive into the IO clinical development landscape to better understand the value of combining the two targets across indications and also other PD-1/L1 combos
- Identify the opportunities and risks of developing a bispecific agent
Valued Outcome
- Client gained a strategic perspective to the potential development of such a combination and realized that with the number of IO combination trials ongoing, CTLA-4 as a preferred combo partner to PD-1/L1 may not last
- A bispecific may be limiting to CTLA-4 efficacy by localization to TME and lack of dosing flexibility for safety
- Separate products might offer unique flexibility
- Programs in advanced stages