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

Study Purpose

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.

Recruitment Criteria

Accepts Healthy Volunteers

Healthy volunteers are participants who do not have a disease or condition, or related conditions or symptoms

No
Study Type

An interventional clinical study is where participants are assigned to receive one or more interventions (or no intervention) so that researchers can evaluate the effects of the interventions on biomedical or health-related outcomes.


An observational clinical study is where participants identified as belonging to study groups are assessed for biomedical or health outcomes.


Searching Both is inclusive of interventional and observational studies.

Interventional
Eligible Ages 18 Years and Over
Gender All
More Inclusion & Exclusion 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

Trial Details

Trial ID:

This trial id was obtained from ClinicalTrials.gov, a service of the U.S. National Institutes of Health, providing information on publicly and privately supported clinical studies of human participants with locations in all 50 States and in 196 countries.

NCT06655155
Phase

Phase 1: Studies that emphasize safety and how the drug is metabolized and excreted in humans.

Phase 2: Studies that gather preliminary data on effectiveness (whether the drug works in people who have a certain disease or condition) and additional safety data.

Phase 3: Studies that gather more information about safety and effectiveness by studying different populations and different dosages and by using the drug in combination with other drugs.

Phase 4: Studies occurring after FDA has approved a drug for marketing, efficacy, or optimal use.

Phase 2
Lead Sponsor

The sponsor is the organization or person who oversees the clinical study and is responsible for analyzing the study data.

argenx
Principal Investigator

The person who is responsible for the scientific and technical direction of the entire clinical study.

N/A
Principal Investigator Affiliation N/A
Agency Class

Category of organization(s) involved as sponsor (and collaborator) supporting the trial.

Industry
Overall Status Recruiting
Countries Belgium, Bulgaria, Chile, Croatia, Czechia, Germany, Greece, Poland, Portugal, Puerto Rico, Romania, Serbia, Spain, Switzerland, United States
Conditions

The disease, disorder, syndrome, illness, or injury that is being studied.

Systemic Sclerosis (SSc)
Arms & Interventions

Arms

Experimental: Efgartigimod PH20 SC

Participants receiving efgartigimod PH20 SC

Placebo Comparator: Placebo PH20 SC

Participants receiving placebo PH20 SC

Interventions

Combination Product: - Efgartigimod PH20 SC

Subcutaneous efgartigimod PH20 SC given by prefilled syringe

Other: - Placebo PH20 SC

Subcutaneous placebo PH20 SC given by prefilled syringe

Contact a Trial Team

If you are interested in learning more about this trial, find the trial site nearest to your location and contact the site coordinator via email or phone. We also strongly recommend that you consult with your healthcare provider about the trials that may interest you and refer to our terms of service below.

Phoenix 5308655, Arizona 5551752

Status

Recruiting

Address

Arizona Arthritis and Rheumatology Associates

Phoenix 5308655, Arizona 5551752, 85032-9306

Site Contact

Saima Chohan, MD

[email protected]

857-350-4834

IRIS Research and Development LLC, Plantation 4168782, Florida 4155751

Status

Recruiting

Address

IRIS Research and Development LLC

Plantation 4168782, Florida 4155751, 33324

Site Contact

Guillermo Valenzuela, MD

[email protected]

857-350-4834

Thomas Jefferson University, Columbia 4352053, Maryland 4361885

Status

Recruiting

Address

Thomas Jefferson University

Columbia 4352053, Maryland 4361885, 21044

Site Contact

Fabian Mendoza-Ballesteros, MD

[email protected]

857-350-4834

University of Michigan Hospital, Ann Arbor 4984247, Michigan 5001836

Status

Recruiting

Address

University of Michigan Hospital

Ann Arbor 4984247, Michigan 5001836, 48109

Site Contact

Erica Mulcaire-Jones, MD

[email protected]

857-350-4834

International Sites

UZ Gent, Ghent 2797656, Belgium

Status

Recruiting

Address

UZ Gent

Ghent 2797656, , 9000

Site Contact

Vanessa Smith, MD

[email protected]

857-350-4834

UZ Brussel, Jette 2794914, Belgium

Status

Recruiting

Address

UZ Brussel

Jette 2794914, , 1090

Site Contact

Karin Melsens, MD

[email protected]

857-350-4834

Medical Center Artmed OOD, Plovdiv 728193, Bulgaria

Status

Recruiting

Address

Medical Center Artmed OOD

Plovdiv 728193, , 4002

Site Contact

Mariela Geneva-Popova, MD

[email protected]

857-350-4834

Sofia 727011, Bulgaria

Status

Recruiting

Address

Diagnostic Consultative Center Convex EOOD

Sofia 727011, , 1680

Site Contact

Vladimira Boyadzhieva, MD

[email protected]

857-350-4834

BIOCINETIC Ltda, Santiago 3871336, Chile

Status

Recruiting

Address

BIOCINETIC Ltda

Santiago 3871336, , 8320000

Site Contact

Maria Ines Dominguez, MD

[email protected]

857-350-4834

Santiago 3871336, Chile

Status

Recruiting

Address

Centro de Investigaciones Clinicas UC (CICUC)

Santiago 3871336, , 8330034

Site Contact

Antonia Valenzuela Vergara, MD

[email protected]

857-350-4834

Temuco 3870011, Chile

Status

Recruiting

Address

Centro de especialidades médicas Vanguardia

Temuco 3870011, , 4810345

Site Contact

Carlos Alberto Baumert Llanos, MD

[email protected]

857-350-4834

University Hospital of Split, Split 3190261, Croatia

Status

Recruiting

Address

University Hospital of Split

Split 3190261, , 21000

Site Contact

Mislav Radic, MD

[email protected]

857-350-4834

Revmatologicky Ustav, Prague 3067696, Czechia

Status

Recruiting

Address

Revmatologicky Ustav

Prague 3067696, , 140 59

Site Contact

Michal Tomcik, MD

[email protected]

857-350-4834

Minden 2871039, Germany

Status

Recruiting

Address

Mühlenkreiskliniken - Johannes Wesling Klinikum Minden

Minden 2871039, , 32429

Site Contact

Gunter Assmann, MD

[email protected]

857-350-4834

University General Hospital of Patras, Pátrai 255683, Greece

Status

Recruiting

Address

University General Hospital of Patras

Pátrai 255683, , 265 04

Site Contact

Dimitrios Daousis, MD

[email protected]

857-350-4834

Malopolskie Badania Kliniczne, Krakow 3094802, Poland

Status

Recruiting

Address

Malopolskie Badania Kliniczne

Krakow 3094802, , 30-002

Site Contact

Bogdan Batko, MD

[email protected]

857-350-4834

Zespol Poradni Specjalistycznych REUMED, Lublin 765876, Poland

Status

Recruiting

Address

Zespol Poradni Specjalistycznych REUMED

Lublin 765876, , 20-607

Site Contact

Robert Zwolak, MD

[email protected]

857-350-4834

Twoja Przychodnia NCM, Nowa Sól 3090764, Poland

Status

Recruiting

Address

Twoja Przychodnia NCM

Nowa Sól 3090764, , 67-100

Site Contact

Malgorzata Miakisz, MD

[email protected]

857-350-4834

MICS Centrum Medyczne Warszawa, Warsaw 756135, Poland

Status

Recruiting

Address

MICS Centrum Medyczne Warszawa

Warsaw 756135, , 00-874

Site Contact

Katarzyna Romanowska-Prochnicka, MD

[email protected]

857-350-4834

Wroclaw 3081368, Poland

Status

Recruiting

Address

Niepubliczny Zaklad Opieki Zdrowotnej Biogenes

Wroclaw 3081368, , 53-224

Site Contact

Piotr Wiland, MD

[email protected]

857-350-4834

ULS de Gaia/Espinho, EPE - Unidade I, Vila Nova de Gaia 2732544, Portugal

Status

Recruiting

Address

ULS de Gaia/Espinho, EPE - Unidade I

Vila Nova de Gaia 2732544, , 4434-502

Site Contact

Tiago Meirinhos, MD

[email protected]

857-350-4834

The Alliance Medical Sciences Campus, San Juan 4568127, Puerto Rico

Status

Recruiting

Address

The Alliance Medical Sciences Campus

San Juan 4568127, , 00936

Site Contact

Grissel Rios Sola, MD

[email protected]

857-350-4834

Dr I Cantacuzino Clinical Hospital, Bucharest 683506, Romania

Status

Recruiting

Address

Dr I Cantacuzino Clinical Hospital

Bucharest 683506, , 20475

Site Contact

Ana Maria Gheorghiu, MD

[email protected]

857-350-4834

Military Medical Academy, Belgrade 792680, Serbia

Status

Recruiting

Address

Military Medical Academy

Belgrade 792680, , 11152

Site Contact

Milan Petronijevic, MD

[email protected]

857-350-4834

Hospital Del Mar, Barcelona 3128760, Spain

Status

Recruiting

Address

Hospital Del Mar

Barcelona 3128760, , 8023

Site Contact

Ana Pros Simon, MD

[email protected]

857-350-4834

C.H. Regional Reina Sofia, Córdoba 2519240, Spain

Status

Recruiting

Address

C.H. Regional Reina Sofia

Córdoba 2519240, , 14004

Site Contact

Rafaela Ortega Castro, MD

[email protected]

857-350-4834

Corporacio Sanitaria Parc Tauli, Sabadell 3111199, Spain

Status

Recruiting

Address

Corporacio Sanitaria Parc Tauli

Sabadell 3111199, , 08208

Site Contact

Joan Calvet Fontova, MD

[email protected]

857-350-4834

Kantonsspital St. Gallen, Sankt Gallen 2658822, Switzerland

Status

Recruiting

Address

Kantonsspital St. Gallen

Sankt Gallen 2658822, , 9000

Site Contact

Andrea Rubbert-Roth, MD

[email protected]

857-350-4834