If gene therapies in the diabetes space gain approval, reimbursement challenges will reach a critical juncture

Gene therapy’s biggest prize thus far in terms of market potential may be in the diabetes space, specifically diabetic complications, which are varied and afflict millions of diabetics.?Several gene therapies targeting diabetic complications are in late-stage clinical development, including?Engensis and RGX-314 . These two gene therapies are projected to possibly receive U.S. marketing authorization in the second and fourth quarters of 2024, respectively.

As a treatment indicated for diabetic peripheral neuropathy, Engensis has a possible eligible population in the U.S. of 5.5 to 11.5 million adult patients. Meanwhile, as a treatment targeting diabetic retinopathy, RGX-314 has a potential eligible population of approximately 4.2 million adult patients.

If approved, these gene therapies could address?deficiencies?in care for these patients. Of course,?not all eligible patients will be prescribed these treatments. Nevertheless, given the unmet need in this space, it’s projected that millions of patients would at least consider such therapies.

Diabetic peripheral neuropathy affects the feet and legs of patients first, followed by the hands and arms. Signs and symptoms include numbness or reduced ability to feel pain or temperature changes.?Besides managing blood sugar to treat diabetic neuropathy, there’s a plethora of symptomatic relief medications which include nerve pain medications, anti-depressants, and anti-seizure medicines.

As an investigational non-viral gene therapy – to be taken at intervals, so not a one-time treatment - Engensis has the potential to become the first analgesic drug to significantly ameliorate and possibly reverse the progression of diabetic peripheral neuropathy. It holds great promise, but for payers the cost burden may be very difficult to manage.

Diabetic retinopathy is a leading cause of visual impairment. It is characterized by vascular lesions and neuronal damage of the retina. Treatment options for this condition are currently limited. Gene therapy has the potential to provide an alternative treatment for diabetic retinopathy with distinct advantages, such as longer therapeutic effect, less injection frequency, ability to intervene at disease onset, and potentially fewer side effects.?RGX-314 is one such therapy –??an investigational recombinant adeno-associated virus vector –?being developed as a potential one-time treatment for diabetic retinopathy and wet age-related macular degeneration. Similar to Engensis, the up-front costs for payers seeking access to RGX-314 may be very burdensome. Invariably the question is how, once these gene therapies gain regulatory approval, the healthcare system will be able to pay for these high-priced therapies that target such potentially large populations. Value-based pricing agreements, in which refunds would be offered in instances of treatments not attaining certain pre-determined?outcomes, have proven to be highly effective.

The Lyfegen Platform enables more efficient and transparent management of value-based drug pricing contracts for all kinds of cell and gene therapies – including those targeting large populations – by using intelligent data-driven algorithms to capture and analyze patient-level drug cost data. The Lyfegen Model & Agreements Library can help stakeholders explore real-world models and identify which model are best-suited for the specific use-case and desired negotiation outcomes. Learn more on: lyfegen.com