Darius Moshfeghi, MD, on the SOL-1 Study | Plus, Heads-Up 3D Visualization and Medicare Cut Concerns
This episode of RetinUp opens with a policy discussion on proposed Medicare and Medicaid funding cuts and what they could mean for retina practices and vulnerable patients.
John Kitchens, MD, then shares a decade of experience with heads-up 3D visualization in the Vitreoretinal View segment, covering its advantages for surgical training and outcomes, and why adoption has remained slower than expected.
In the main interview, Stanford's Darius Moshfeghi, MD, joins Scott and John to break down the SOL-1 Phase 3 superiority study on Axpaxli (OTX-TKI), Ocular Therapeutix's investigational bioresorbable intravitreal hydrogel incorporating axitinib. He explains his role as an independent rescue monitor, unpacks what the superiority outcome over aflibercept means for clinical practice, and previews what the SOL-R study may show next.
Hosts: John Kitchens, MD, and Scott Krzywonos
Topics Covered
SOL-1 Study: Design, Findings & Context (Darius Moshfeghi, MD)
The independent rescue monitor role: what it is, how it worked, and why it was created for SOL-1
SOL-1's study design, superiority outcome, and floaters data (and why they were not clinically concerning)
Superiority vs. non-inferiority: implications for labeling, step therapy avoidance, and physician adoption
How retina specialists could integrate Axpaxli into their practice protocols
How SOL-R differs from SOL-1, and what SOL-R might show us
Vitreoretinal View: Heads-Up 3D Visualization
Origins of heads-up 3D: TruVision and Alcon NGenuity
Zeiss and Heidelberg heads-up visualization systems
Why John adopted NGenuity early and continues to use it
Key benefits: surgical video quality, fellow training, and real-time coaching
Cost considerations and other reasons why adoption has remained low
The anterior segment opportunity: how cataract surgery economics may drive broader uptake
Medicare & Managed Care Policy Concerns
Proposed $200 billion in federal budget cuts and the potential impact on Medicare and Medicaid
Risk of increased step therapy, Avastin-first policies, and tiered drug coverage
Access-to-care concerns for Medicaid patients, particularly at academic medical centers
The difference between traditional Medicare and managed Medicare (Medicare Advantage)
Historical context: past Congressional threats to Medicare reimbursement and how they've played out
Key Takeaways
The independent rescue monitor role pioneered in SOL-1 reflects a novel, collaborative approach to adjudicating vision-threatening events in clinical trials. Physicians will likely adapt Axpaxli into existing treat-and-extend protocols; SOL-R's more traditional design may generate data that resonates more directly with clinical practice. SOL-1 is the first superiority study in retina/ophthalmology, demonstrating that a single injection of Axpaxli (Ocular Therapeutix) outperforms aflibercept 2mg (Regeneron) on vision maintenance — with durability extending well beyond current approved dosing intervals. Heads-up 3D visualization offers meaningful advantages for surgical training and video quality, but high costs for integrated systems and declining surgery center reimbursements continue to limit adoption. Proposed federal budget cuts to Medicare and Medicaid represent a real threat to retina practices and patient access, particularly for drug coverage and underserved populations.