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Evaluate Safety and Pharmacokinetics of INF904 in Subjects With Moderate to Severe Chronic Spontaneous Urticaria or Hidradenitis Suppurativa

Phase 2a Open-Label Basket Study to Evaluate Safety and Pharmacokinetics of INF904, an Oral C5aR1 Inhibitor, in Subjects With Moderate to Severe Chronic Spontaneous Urticaria or Hidradenitis Suppurativa

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06555328
Enrollment
73
Registered
2024-08-15
Start date
2025-01-02
Completion date
2026-01-22
Last updated
2026-02-03

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

Conditions

Chronic Urticaria, Idiopathic, Hidradenitis, Hidradenitis Suppurativa

Brief summary

The study duration for an individual subject includes screening (14 days), the treatment period (28 days) and the observational follow-up period of 28 days, in total 70 days ± 6 days. All subjects will receive IMP for 28 days followed by one End of Study (EOS) visit, 4 weeks after EOT visit.

Interventions

DRUGCSU lower dose treatment

CSU lower dose treatment

DRUGCSU high dose treatment

CSU high dose treatment

DRUGCSU non responders IgE - high dose treatment

CSU non responders IgE - high dose treatment

DRUGHS low dose treatment

HS low dose treatment

DRUGHS medium dose treatment

HS medium dose treatment

DRUGHS high dose treatment

HS high dose treatment

Sponsors

InflaRx GmbH
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 99 Years
Healthy volunteers
No

Inclusion criteria

* Signed informed consent. * Subjects must be 18 years or older at the time of signing the informed consent.

Exclusion criteria

* Subjects with known severe or life-threatening hypersensitivity reaction to any other CSU/HS treatment according to National Cancer Institute-Common Terminology Criteria for Adverse Events (NCI-CTCAE). * Subjects who have any other skin disease that may interfere with assessment of CSU or HS. * Subjects who have an active infection or history of infection(s) as follows: 1. Any infection requiring systemic treatment within 14 days prior to baseline. 2. A history of opportunistic, recurrent, or chronic infections that, in the opinion of the Investigator, might cause this study to be detrimental to the subject. * Subjects with known progressed liver disease (Child-Pugh B or C)

Design outcomes

Primary

MeasureTime frameDescription
Frequency, severity, and relatedness of treatment-emergent adverse events (TEAEs) and serious adverse events (SAEs).Through study completion, an average of 10 weeksFrequency, severity, and relatedness of treatment-emergent adverse events (TEAEs) and serious adverse events (SAEs) using MedDRA classification.

Secondary

MeasureTime frameDescription
Maximum Plasma Concentration [Cmax]Through study completion, an average of 10 weeksPlasma PK parameters of INF904
Minimum Plasma Concentration [Cmin]Through study completion, an average of 10 weeksPlasma PK parameters of INF904
Time of occurrence of maximum plasma concentration [tmax]Through study completion, an average of 10 weeksPlasma PK parameters of INF904
Systemic exposure, defined as the Area Under the Curve [AUC0-24]Through study completion, an average of 10 weeksPlasma PK parameters of INF904
Systemic exposure, defined as the Area Under the Curve [AUClast]Through study completion, an average of 10 weeksPlasma PK parameters of INF904

Countries

Bulgaria, Georgia, Germany, Greece, Poland, United States

Outcome results

None listed

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