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Therapeutic Use of Tadekinig Alfa in NLRC4 Mutation and XIAP Deficiency

NCT03113760 · Status: COMPLETED · Phase: PHASE3 · Type: INTERVENTIONAL · Enrollment: 15

Last updated 2025-07-02

Study results available
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Summary

This is a Phase 3 study to assess the safety and efficacy of Tadekinig alfa in patients with monogenic, interleukin-18 (IL 18) driven autoinflammation due to Nucleotide-binding oligomerization domain, leucine-rich repeat and caspase recruiting domain (CARD domain) containing 4 (NLRC4) - Macrophage activation syndrome (MAS) mutation (NLRC4-MAS mutation) or X-linked inhibitor of apoptosis (XIAP) deficiency. Because of the likelihood for pathogenic IL-18 in certain monogenic diseases, patients known to harbor deleterious mutations in NLRC4-MAS or XIAP and who have a history of ongoing inflammation will be enrolled if they have ferritin ≥ 500 ng/mL or persistent C reactive protein (CRP) elevation ≥ 2 times the upper limit of normal (ULN) and the patients should have a Modified Autoinflammatory Disease Activity Index (mAIDAI) ≥ 4.

Conditions

  • NLRC4-MAS
  • XIAP Deficiency

Interventions

DRUG

Tadekinig alfa

Tadekinig alfa is a soluble glycoprotein of 164 amino acids produced from Chinese Hamster Ovary cell line. Tadekinig alfa is supplied as a colorless to slightly yellow, sterile solution for injection in glass vials containing sodium chloride, and 0.02M sodium phosphate buffer as excipients. It is available in a concentration of 20mg/0.5mL.

OTHER

0.9% sodium chloride

To ensure that the treatment remains blinded for the entire study period, the placebo solutions will be supplied in identical vials and similar labelling as the active drug and will be indistinguishable in terms of their texture, color, and smell.

Sponsors & Collaborators

  • AB2 Bio Ltd.

    lead INDUSTRY

Principal Investigators

  • Ed M Behrens, MD · Children Hospital of Philadelphia

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Model
PARALLEL

Eligibility

Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2017-07-21
Primary Completion
2023-10-31
Completion
2023-11-02
FDA Drug
Yes

Countries

  • United States
  • Canada
  • Germany

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT03113760 on ClinicalTrials.gov