Milestones
- EsoBiotec acquisition completed by AstraZeneca20 May 2025Complete.
- Phase 1 trial dosing and evaluation2025Complete.
- Phase 1 results published in Nature MedicineApr 2026Complete.
An in vivo CAR-T therapy for relapsed/refractory multiple myeloma. Uses a lentiviral vector carrying an anti-BCMA CAR gene infused as a single IV dose without leukapheresis or ex vivo manufacturing.
Phase 1 showed efficacy but all patients developed severe cytokine release syndrome. Development ongoing.
Updated Apr 2026Checked 10 Oct0 updates this week
A single infusion delivers lentiviral particles carrying the CAR gene directly into the bloodstream.
The virus crosses the T cell membrane and integrates the CAR gene into the genome.
T cells express the CAR receptor and recognize and attack myeloma cells expressing BCMA.
| Spec | ESO-T01 |
|---|---|
| Vector | Lentiviral, nanobody-directedR (reported) |
| Target | BCMA (B cell maturation antigen)R (reported) |
| Phase 1 dose | 0.2 × 10^9 TU IVR (reported) |
| Phase 1 enrollment | 5 patientsR (reported) |
R reported by the company
AstraZeneca
Biopharmaceutical, oncology, cell therapy, in vivo CAR-T
AstraZeneca is a biopharmaceutical company developing treatments in oncology, rare disease, and cell therapy. Acquired EsoBiotec in May 2025 for up to $1B to advance in vivo CAR-T therapies.