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A single-arm, open-label, multi-centre, phase I/II first-in-human study evaluating the safety and clinical activity of QEL-005, an autologous CAR T-regulatory cell therapy treatment targeting CD19, in patients with diffuse cutaneous systemic sclerosis (dcSSc) and in patients with difficult to treat rheumatoid arthritis (D2TRA).

Status
Not yet recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2025-523971-46-00
Enrollment
8
Registered
2026-04-21
Start date
Unknown
Completion date
Unknown
Last updated
2026-04-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Diffuse cutaneous systemic sclerosis (dcSSc) Difficult to treat rheumatoid arthritis (D2TRA)

Brief summary

Dose escalation part: Incidence of protocol-defined dose-limiting toxicities (DLTs) within 14 days postinfusion; Treatment-emergent SAEs, adverse events (AEs) and AEs of Special Interest (AESIs); Clinically significant changes in safety laboratory assessments, ECG and vital signs., Expansion part: Treatment-emergent serious adverse events (SAEs), adverse events (AEs) and AEs of Special Interest (AESIs); Clinically significant changes in safety laboratory assessments, electrocardiogram (ECG) and vital signs.

Interventions

Sponsors

Quell Therapeutics Limited
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Design outcomes

Primary

MeasureTime frame
Dose escalation part: Incidence of protocol-defined dose-limiting toxicities (DLTs) within 14 days postinfusion; Treatment-emergent SAEs, adverse events (AEs) and AEs of Special Interest (AESIs); Clinically significant changes in safety laboratory assessments, ECG and vital signs., Expansion part: Treatment-emergent serious adverse events (SAEs), adverse events (AEs) and AEs of Special Interest (AESIs); Clinically significant changes in safety laboratory assessments, electrocardiogram (ECG) and vital signs.

Outcome results

None listed

Source: EU CTIS · Data processed: Apr 23, 2026