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An Open-label Study of CND261 in Seropositive Rheumatoid Arthritis

A Phase 1b, Open-Label, Multicenter Study Evaluating the Safety, Tolerability, Pharmacokinetics, Pharmacodynamics, Immunogenicity, and Preliminary Clinical Activity of CND261 in Patients With Seropositive Rheumatoid Arthritis

Status
Active, not recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07052032
Enrollment
47
Registered
2025-07-04
Start date
2025-06-16
Completion date
2027-06-01
Last updated
2026-09-03

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

Conditions

Rheumatoid Arthritis

Brief summary

The purpose of the study is to evaluate the safety and efficacy of CND261 in patients with seropositive rheumatoid arthritis.

Detailed description

This is a Phase 1b, open-label, multicenter study evaluating the safety, tolerability, pharmacokinetics, pharmacodynamics, immunogenicity, and preliminary clinical activity of CND261 in patients with seropositive rheumatoid arthritis. The study consists of 2 parts: a dose-escalation part and an open-label expansion. Patients will be followed until Week 52.

Interventions

BIOLOGICALCND261

CND261 will be dosed according to the assigned cohort

Sponsors

Candid Therapeutics
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

1. 18 to 75 years old 2. Diagnosis of adult-onset RA 3. Class I-III RA 4. Moderately to severely active RA 5. Inadequate treatment response as defined in the protocol 6. Stable use of any concomitant therapies

Exclusion criteria

1. Inadequate clinical laboratory parameters at Screening 2. Active infection 3. Receipt of or inability to discontinue any excluded therapies 4. Receipt of live vaccine within 4 weeks 5. Presence of any concomitant autoimmune disease 6. Active or known history of catastrophic anti-phospholipid syndrome 7. APS or thrombotic event not adequately controlled by anticoagulation therapy 8. History of progressive multifocal leukoencephalopathy 9. Central nervous system disease 10. Presence of 1 or more significant concurrent medical conditions 11. Have a diagnosis or history of malignant disease within 5 years 12. Serious mental illness, alcohol or drug abuse, dementia, or any other condition that would impair ability to receive planned treatment or to understand informed consent 13. History of or planned organ transplant and/or autologous or allogeneic hematopoietic stem cell transplantation 14. Major surgery requiring use of general anesthesia within 12 weeks or planned or expected major surgery during the study 15. Women who are pregnant or breastfeeding 16. Patients who do not agree to the use of highly effective contraception as defined by the protocol

Design outcomes

Primary

MeasureTime frame
Incidence and severity of treatment-emergent adverse events through end of studyBaseline to Month 12
Changes from baseline in vital signs through end of studyBaseline to Month 12
Changes from baseline in ECG parameters through end of study: PR intervalBaseline to Month 12
Changes from baseline in ECG parameters through end of study: QRS intervalBaseline to Month 12
Changes from baseline in ECG parameters through end of study: QTcF intervalBaseline to Month 12
Changes from baseline in safety laboratory assessments through end of studyBaseline to Month 12

Secondary

MeasureTime frame
Pharmacokinetic (PK) concentration-time profiles for CND261Baseline to Month 12
PK parameters for CND261: maximum concentrationBaseline to Month 12
PK parameters for CND261: time of maximum concentrationBaseline to Month 12
PK parameters for CND261: area under the concentration-time curveBaseline to Month 12
PK parameters for CND261: clearanceBaseline to Month 12
PK parameters for CND261: volume of distributionBaseline to Month 12
PK parameters for CND261: half-lifeBaseline to Month 12

Countries

Moldova, Ukraine

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 4, 2026