Does TYK2/JAK1 Show Potential in Inflammatory Diseases?
Investigational inhibitor was not associated with treatment-related serious adverse events and produced biomarker changes consistent with pathway inhibition in healthy volunteers.
By
Andrea Surnit
July 6, 2026
Clinical Scorecard: Does TYK2/JAK1 Show Potential in Inflammatory Diseases?
At a Glance
Category Detail
Condition Inflammatory Diseases
Key Mechanisms Inhibition of TYK2 and JAK1 pathways
Target Population Healthy participants
Care Setting Phase 1 clinical trial
Key Highlights
SDC-1801 was well tolerated with mild to moderate adverse events. Evidence of pharmacologic activity with reductions in IP-10 and high-sensitivity C-reactive protein. Peak plasma concentrations observed 3 to 5 hours post-administration. Food intake modestly increased drug exposure. Limited renal elimination with less than 4% recovered unchanged in urine.
Guideline-Based Recommendations
Diagnosis
Management
Monitoring & Follow-up
Risks
One participant experienced treatment-related rhabdomyolysis.
Patient & Prescribing Data
Healthy participants in a clinical trial
Potential for once- or twice-daily dosing based on pharmacokinetic data.
Clinical Best Practices
Monitor for mild to moderate adverse events during treatment. Consider food effects on drug absorption when prescribing.
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