Voyager CEO Al Sandrock outlines a focused strategy: remain specialists in neurology, but broaden the therapeutic modalities (gene therapy, proteins, oligonucleotides). This allows them to pursue well-validated CNS targets that are considered "undruggable" by traditional small molecules, which have historically been the only option for crossing the blood-brain barrier.

The company focuses on disease-specific 3D protein conformations, which exposes new binding sites (epitopes) not present on the same protein in healthy cells. This allows for highly selective drugs that avoid the toxicity common with targets defined by genetic sequence alone.

Regeneron identified the main constraint in drug discovery as a lack of validated targets, not a shortage of advanced therapeutic tools. Their genetics engine was created to explore the 90% of the human genome that was untargeted by existing or experimental medicines, aiming to solve this core problem.

Recognizing that eye diseases are multifactorial, the company's research team is developing bisistronic vectors. This approach packages two different transgenes into a single AAV vector, allowing a single gene therapy product to address multiple disease pathways simultaneously, a significant advancement over single-target therapies.

Instead of targeting rare, single-gene mutations, Medera's therapy restores a protein universally downregulated in most forms of heart failure. This "umbrella pathway" strategy allows a single drug to treat multiple cardiac diseases, whether genetic or acquired, dramatically expanding the potential patient population from rare to common diseases.

While many gene therapies start with rare, fatal diseases to justify risks, Rumagen intentionally targeted large markets like rheumatoid arthritis. Their strategy relies on the fact that pioneers have already established the general safety of gene editing with regulators, opening the door for its application in more common, chronic conditions.

The Innovative Genomics Institute is tackling rare diseases by creating a standardized platform. By keeping elements like the delivery vehicle and enzyme constant and only changing the guide RNA, they aim to create a repeatable 'bucket trial' process for developing hundreds of cures, not just one-offs.

Regeneron pursues therapies for ultra-rare diseases, even without a clear standalone business model. The strategy is to treat these programs as the "tip of the iceberg," establishing a technology platform and biological understanding that can then be expanded to treat much more common diseases.

Regeneron systematically expands the market for its drugs through "indication expansion." By identifying people in its database with a natural loss-of-function variant for a drug's target, they can scan thousands of diseases to see what other conditions these people are protected from, revealing new therapeutic opportunities.