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Leflunomide-Sulfasalazine-Hydroxychloroquine — Competitive Intelligence Brief
phase 3
Disease-modifying antirheumatic drug (DMARD) combination
Multiple targets: dihydroorotate dehydrogenase (leflunomide), NF-κB pathway (sulfasalazine), lysosomal function and TLR signaling (hydroxychloroquine)
Immunology / Rheumatology
Small molecule
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Target snapshot
Leflunomide-Sulfasalazine-Hydroxychloroquine (Leflunomide-Sulfasalazine-Hydroxychloroquine) — University of Nebraska. This triple-drug combination suppresses immune system activity through multiple pathways to reduce inflammation and autoimmune disease progression.
Comparator set (5 drugs)
| Drug | Generic | Sponsor | Phase | Class | Target | Approval / PDUFA |
|---|---|---|---|---|---|---|
| Leflunomide-Sulfasalazine-Hydroxychloroquine TARGET | Leflunomide-Sulfasalazine-Hydroxychloroquine | University of Nebraska | phase 3 | Disease-modifying antirheumatic drug (DMARD) combination | Multiple targets: dihydroorotate dehydrogenase (leflunomide), NF-κB pathway (sulfasalazine), lysosomal function and TLR signaling (hydroxychloroquine) | |
| Methotrexate plus sulfasalazine | Methotrexate plus sulfasalazine | Singapore General Hospital | marketed | Disease-modifying antirheumatic drug (DMARD) combination | Multiple (dihydrofolate reductase, folate metabolism; sulfapyridine and 5-ASA mechanisms) | |
| Leflunomide plus Methotrexate | Leflunomide plus Methotrexate | Bangladesh Medical University | marketed | Disease-modifying antirheumatic drug (DMARD) combination | Dihydroorotate dehydrogenase (leflunomide); Dihydrofolate reductase (methotrexate) | |
| Methotrexate-Sulfasalazine-Hydroxychloroquine | Methotrexate-Sulfasalazine-Hydroxychloroquine | University of Nebraska | phase 3 | Disease-modifying antirheumatic drug (DMARD) combination | ||
| Combination of DMARDs | Combination of DMARDs | Helsinki University Central Hospital | phase 3 | Disease-modifying antirheumatic drug (DMARD) combination | ||
| Methotrexate, Hydroxychloroquine | Methotrexate, Hydroxychloroquine | Sanjay Gandhi Postgraduate Institute of Medical Sciences | phase 3 | Immunosuppressive/Disease-modifying antirheumatic drug (DMARD) combination | Dihydrofolate reductase (methotrexate); Toll-like receptors and lysosomal pH (hydroxychloroquine) |
Recent regulatory actions (last 90 days)
Upcoming PDUFA dates (next 180 days)
Patent timeline (forward window)
Sponsor landscape (Disease-modifying antirheumatic drug (DMARD) combination class)
- University of Nebraska · 2 drugs in this class
- Bangladesh Medical University · 1 drug in this class
- Helsinki University Central Hospital · 1 drug in this class
- Singapore General Hospital · 1 drug in this class
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Cite this brief
Drug Landscape (2026). Leflunomide-Sulfasalazine-Hydroxychloroquine — Competitive Intelligence Brief. https://druglandscape.com/ci/leflunomide-sulfasalazine-hydroxychloroquine. Accessed 2026-05-17.
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