Study to Evaluate the Efficacy, Safety and Tolerability of MAS825 in Patients With Monogenic IL-18 Driven Autoinflammatory Diseases, Including NLRC4-GOF, XIAP Deficiency, or CDC42 Mutations

Running, not enrolling · Phase 2 · Has a placebo group

Conditions studied: NLRC4-GOF, AIFEC (Autoinflammation With Infantile Enterocolitis), XIAP Deficiency, CDC42 Mutations

In brief

This study is a Phase 2 trial designed to evaluate the clinical efficacy, safety, and tolerability of MAS825 in patients with NLRC4-GOF, XIAP deficiency, or CDC42 mutations.

Key facts

Study ID

NCT04641442

Run by

Novartis Pharmaceuticals

People needed

17

Starts

2020-12-18

Expected to finish

2032-11-23

Last updated by the study team

2026-07-31

Who can join

Age: any. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• For all Patients:
• Male and female patients weighing at least 3 kg
• Written informed consent by parent(s)/legal guardian(s) for the pediatric patients and assent by the pediatric patient (depending on local requirements) must be obtained before any study-specific assessment is performed. For adult patients, written informed consent by patients capable of giving consent, or when the patient is not capable of giving consent, by his/her legal/authorized representative (if allowed according to local requirements).
• Cohort 1 specific inclusion criteria:
• Patients with a genetic diagnosis of either NLRC4-GOF, XIAP deficiency, or CDC42 mutation
• Clinical history and investigations consistent with autoinflammation and infantile enterocolitis (AIFEC/NLRC4-GOF), XIAP or CDC42. XIAP patients must have persistent disease or be resistant to escalating therapy.
• At first treatment, evidence of active disease as assessed by inflammatory markers and PGA
• Cohort 2 specific inclusion criteria:
• Patients with a genetic diagnosis of NLRC4-GOF, XIAP deficiency, or CDC42 mutations who are being treated with MAS825 in a Novartis Managed Access Program (MAP).

You may not qualify if…

• History of hypersensitivity to any of the study drugs or to drugs of similar chemical classes or to any of the excipients.
• Signs and symptoms, in the judgment of the investigator, of clinically significant active bacterial, fungal, parasitic or viral infections, excluding chronic Epstein-Barr Virus (EBV).
• COVID-19 specific: If in line with health and governmental authority guidance, it is highly recommended that testing to exclude COVID-19 using PCR or comparable approved methodology be completed within 1 week prior to first dosing.
• Any conditions or significant medical problems, which in the opinion of the investigator places the patient at unacceptable risk for MAS825 therapy
• Previous treatment with anti-rejection and/or immunomodulatory drugs within the past 28 days or 5 half-lives (whichever is the longer) for immunomodulatory therapeutic antibodies (or as listed in the prohibited medications section) prior to MAS825 treatment with the exceptions of glucocorticoids, cyclosporin and targeted binding or blocking therapies.
• A positive HIV test result at Screening. Evidence of prior testing within 3 months is sufficient.
• A positive Hepatitis B surface antigen (HBsAg) or Hepatitis C test result at Screening. Evidence of prior testing within 3 months is sufficient.
• Presence of tuberculosis infection as defined by a positive TB test at Screening. Evidence of prior testing within 3 months is sufficient.
• Live vaccinations within 1 month prior to MAS825 treatment, during the trial, and up to 3 months following the last dose.
• Pregnant or nursing (lactating) females.
• Female patients of child-bearing potential (or Tanner stage 2 or above) who are or might become sexually active, agree to use highly effective contraceptive methods to prevent pregnancy while on MAS825 therapy
• Patients weighing >160 kg at Screening.
• For CDC42 mutation patients: Takenouchi-Kosaki syndrome - CDC42 mutations associated with a diverse syndrome characterized by variable development delays, cardiac, brain and hematological abnormalities.

Where it is running

• Cincinnati Children's Hospital — Cincinnati, Ohio, United States
• Children´s Hospital of Philadelphia — Philadelphia, Pennsylvania, United States
• Texas Children´s Hospital — Houston, Texas, United States
• Seattle Children´s Hospital — Seattle, Washington, United States
• Centrum detske revmatologie a autoinflamatornich onemocneni — Prague, CZ, Czechia
• Ustav Imunologie 2 LF UK a FN Motol — Prague, Czechia
• Novartis Investigative Site — Paris, France
• Bambino Gesu Hospital — Roma, RM, Italy
• Novartis Investigative Site — Chiba, Japan
• Novartis Investigative Site — Madrid, Spain
• Novartis Investigative Site — London, United Kingdom
• Great Ormond Street Hospital — London, United Kingdom

Full record on ClinicalTrials.gov

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