Regulatory Progress for Lacutamab
FDA cleared the TELLOMAK-3 Phase III protocol; lacutamab has Breakthrough Therapy Designation (relapsed/refractory Sezary syndrome), Fast Track, PRIME and Orphan Drug Designations. TELLOMAK-3 initiation is planned for H2 2026 (financing under discussion).
Commercial Opportunity for CTCL
Addressable U.S. population estimated at ~300 incident Sezary Syndrome patients/year (prevalence ~1,000) and ~3,000 incident Mycosis Fungoides patients/year (prevalence ~12,000). Management projects an initial Sezary market opportunity up to $150M expanding to >$500M across second-line Sezary + MF, with mogamulizumab as a $300M product in 2025 (projected $350M in 2026, ~+16.7%).
IPH4502 Early Clinical Activity and Differentiation
First-in-human Phase I is progressing; MTD established, cohorts enriched at pharmacologically active doses, and preliminary antitumor activity observed (including urothelial cancer post-enfortumab vedotin). Program is differentiated by exatecan payload, hydrophilic/cleavable linker and activity in low/heterogeneous Nectin-4 models—supporting potential best-in-class positioning.
Monalizumab Phase III (PACIFIC-9) Enrollment Complete
AstraZeneca-led PACIFIC-9 completed enrollment (~999 patients randomized 1:1:1) comparing durvalumab +/- monalizumab or oleclumab; primary PFS readout expected in H2 2026 — a major near-term clinical catalyst.
IPH5201 Progress and Scientific Visibility
IPH5201 (anti-CD39) MATISSE Phase II interim analysis (first 40 patients of up to 70) selected for oral presentation at AACR — increases visibility and may inform AstraZeneca opt-in decisions in this collaboration.
Partnerships and Upside Milestones
Partnerships with AstraZeneca include significant milestone potential: monalizumab up to $1.275B (already received $450M; $825M remaining) and IPH5201 up to $885M (already received $60M; $825M remaining). Structures include royalties and potential 50% profit share/co-promotion in Europe if Innate co-funds Phase III.
Cost Discipline and Reduced R&D Spend
Operating expenses totaled EUR 63M in 2025 with R&D representing 73% (EUR 43.6M). R&D spending decreased by 16% year-over-year, attributed to study maturity and lower staff/consulting costs (partially offset by restructuring charges).