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Looking for participantsPhase2

A Study to Assess the Efficacy and Safety of Efgartigimod PH20 SC in Adults With Systemic Sclerosis

Sponsor: argenx

NCT ID: NCT06655155

View on ClinicalTrials.gov ↗

At a glance

What the study gets you
Access to the study treatment being tested
Type of study
Interventional (receives a drug or procedure)
Time in hospital
In-person visits at study sites — visit count not specified by the sponsor
Drug or intervention
Efgartigimod PH20 SC (combination product), Placebo PH20 SC (other)
How long the study runs
Study runs about 34 months (dates as stated)
About the drug or intervention
Efgartigimod PH20 SC — combination product: Subcutaneous efgartigimod PH20 SC given by prefilled syringe · Placebo PH20 SC — other: Subcutaneous placebo PH20 SC given by prefilled syringe
Patient visit burden
Not specified by the sponsor
Type of study
Testing a treatment
Ages
18 Years and over
Who
All
Number of participants
81
Started
2024-11-11
Last checked
2026-09

Plain English Summary

What is this study?

  • • Testing a new treatment for systemic sclerosis (ssc)
  • • Phase2 - 81 participants
  • • The main purpose of this study is to evaluate the effect and safety of efgartigimod PH20 SC compared to placebo in adults with systemic sclerosis

Who can take part?

  • • Ages 18 Years and over
  • • Diagnosed with systemic sclerosis (ssc)

Where?

  • • Leeds - Chapel Allerton Hospital
  • • London - Royal Free Hospital
  • • Luton - Luton and Dunstable University Hospital

This is a simplified summary. Always discuss with your doctor before making any decisions.

About This Trial

The main purpose of this study is to evaluate the effect and safety of efgartigimod PH20 SC compared to placebo in adults with systemic sclerosis. The study consists of a screening period, a treatment period of up to 48 weeks and a safety follow-up period. After the screening period, eligible participants will be randomized in a 2:1 ratio to receive either efgartigimod PH20 SC or placebo. The total study duration can be up to approximately 15 months. More information can be found on: https://clinicaltrials.argenx.com/esscape

Systemic Sclerosis (SSc)

How this trial compares with your answers

Answer 2 more questions to improve match

What we know so far

Condition· Matched your search
Age· Tell us your age for better matching
Gender· Tell us your sex for better matching

Still need:

  • • Tell us your age for better matching
  • • Tell us your sex for better matching

Preliminary match based on your answers. Full eligibility requires on-site assessment including medical history, physical exam, and lab tests. This does not guarantee enrolment.

Eligibility at a Glance

Key info

  • Age: 18 Years and over
  • Who can join: All genders

Biomarkers mentioned

Has a positiveautoantibody negativeautoantibody positive

What the study is looking for

  • ✓Is aged ≥18 years and the local legal age of consent for clinical studies
  • ✓Has diffuse or limited SSc diagnosis and fulfills the 2013 ACR/EULAR classification criteria
  • ✓Has a positive antinuclear antibodies (ANA) test result at the central laboratory with titer of at least 1:160
  • ✓Has a Health Assessment Questionnaire-Disability Index (HAQ-DI) score of at least 0.5 OR a Patient Global Assessment...
  • ✓Has a modified Rodnan Skin Score (mRSS) score between 15 and 35

Who cannot take part

  • ✗Isolated anticentromere antibodies (ACA) seropositivity at the central laboratory
  • ✗Significant lung Arterial Hypertension
  • ✗Severe digital vasculopathy within the past 3 months
  • ✗Skin thickening due to scleroderma mimics or localized scleroderma
  • ✗Scleroderma kidney crisis within the past 6 months of participating to the study
See the full criteria
Inclusion Criteria: * Is aged ≥18 years and the local legal age of consent for clinical studies * Has diffuse or limited SSc diagnosis and fulfills the 2013 ACR/EULAR classification criteria * Has a positive antinuclear antibodies (ANA) test result at the central laboratory with titer of at least 1:160 * Has a Health Assessment Questionnaire-Disability Index (HAQ-DI) score of at least 0.5 OR a Patient Global Assessment (PGA) score of at least 3 * Has a modified Rodnan Skin Score (mRSS) score between 15 and 35 * The participant is anti-RNA polymerase III autoantibody negative at central laboratory and had the first non-Raynaud's phenomenon manifestation less than 5 years before screening or the participant is anti-RNA polymerase III autoantibody positive at central laboratory and had the first non-Raynaud's phenomenon manifestation less than 2 years before screening * Has uninvolved or mildly thickened skin area in at least 1 injection site Exclusion Criteria: * Isolated anticentromere antibodies (ACA) seropositivity at the central laboratory * Significant Pulmonary Arterial Hypertension * Severe digital vasculopathy within the past 3 months * Skin thickening due to scleroderma mimics or localized scleroderma * Scleroderma renal crisis within the past 6 months of participating to the study * Another rheumatic autoimmune disease, except for secondary Sjögren's syndrome or fibromyalgia

Where Is This Study? (3 UK sites)

Chapel Allerton Hospital

Leeds LS7 4SA, United Kingdom

Recruiting
Site contact (verified)
Francesco Del Galdo, MD0113 3924331sumit.lahiri@nhs.net

Royal Free Hospital

London NW3 2QG, United Kingdom

Recruiting
Site contact (verified)

Luton and Dunstable University Hospital

Luton LU4 0DZ, United Kingdom

Recruiting
Site contact (verified)

How to Get in Touch

Sabine Coppieters, MD

Sponsor contact

CONTACT

857-350-4834 clinicaltrials@argenx.com
Data sourced from ClinicalTrials.gov · Last verified: 2026-09