An Open-label Extension Trial of HZNP-HZN-825-301 in Adult Participants With Diffuse Cutaneous Systemic Sclerosis (Diffuse Cutaneous SSc)

NCT ID: NCT05626751

Last Updated: 2026-01-05

Study Results

Results available

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Basic Information

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Recruitment Status

TERMINATED

Clinical Phase

PHASE2

Total Enrollment

174 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-11-04

Study Completion Date

2025-02-24

Brief Summary

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Primary Objectives:

1. The primary efficacy objective is to assess the efficacy of 52 weeks of open-label treatment with HZN-825 in participants with diffuse cutaneous systemic sclerosis, as measured by change from both baselines in forced vital capacity percent (FVC %) predicted.
2. The primary safety objective is to examine the safety and tolerability of 52 weeks of open-label treatment with HZN-825, inclusive of, but not limited to, adverse events (AEs), serious AEs (SAEs) and the adverse event of special interest (AESI), from Day 1 to 4 weeks after last dose.

Detailed Description

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This is an open-label, repeat-dose, multicenter extension trial of HZNP-HZN-825-301. Participants who complete the double-blind Treatment Period (Week 52) in Trial HZNP-HZN-825-301 will be eligible to enter this 52-week extension trial. Participants entering this extension trial will complete the Week 52 Visit activities in HZNP-HZN-825-301 and will not complete the Safety Follow-up Visit 4 weeks after the last dose of trial drug in HZNP-HZN-825-301.

Acquired from Horizon in 2024.

Conditions

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Diffuse Cutaneous Systemic Sclerosis Sclerosis, Systemic

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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HZN-825

HZN-825 will be administered by mouth (PO) twice daily (BID) for 52 weeks

Group Type EXPERIMENTAL

HZN-825

Intervention Type DRUG

HZN-825 will be administered BID for 52 weeks

Interventions

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HZN-825

HZN-825 will be administered BID for 52 weeks

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

1\. Completed the double-blind Treatment Period (Week 52) in Trial HZNP-HZN-825-301; participants prematurely discontinued from trial drug in Trial HZNP-HZN-825-301 for reasons other than safety or toxicity can be included at the discretion of the Investigator after completing Trial HZNP-HZN-825-301 scheduled visits, including Week 52 assessments.

Exclusion Criteria

1. Anticipated use of another investigational agent for any condition during the course of the trial.
2. New diagnosis of malignant condition after enrolling in Trial HZNP-HZN-825-301 (except successfully treated basal/squamous cell carcinoma of the skin or cervical cancer in situ).
3. Women of childbearing potential (WOCBP) or male participants not agreeing to use highly effective method(s) of birth control throughout the trial and for 4 weeks after last dose of trial drug as defined in the protocol.
4. Any new development with the participant's disease or condition or any significant laboratory test abnormality during the course of Trial HZNP-HZN-825-301 that, in the opinion of the Investigator, would potentially put the subject at unacceptable risk.
5. Pregnant or lactating women.
6. Participants will be ineligible if, in the opinion of the Investigator, they are unlikely to comply with the trial protocol or have a concomitant disease or condition that could interfere with the conduct of the trial.
Minimum Eligible Age

18 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Amgen

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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MD

Role: STUDY_DIRECTOR

Amgen

Locations

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Arizona Arthritis and Rheumatology Associates -4550 E Bell Rd

Phoenix, Arizona, United States

Site Status

UCLA Medical Center

Los Angeles, California, United States

Site Status

University of Miami Miller School of Medicine

Miami, Florida, United States

Site Status

IRIS Research and Development LLC

Plantation, Florida, United States

Site Status

DelRicht Clinical Research, LLC - Internal - Covington - PPDS

New Orleans, Louisiana, United States

Site Status

Boston University School Of Medicine

Boston, Massachusetts, United States

Site Status

Michigan Medicine University of Michigan

Ann Arbor, Michigan, United States

Site Status

Mayo Clinic - Cancer Center - Rochester - PPDS

Rochester, Minnesota, United States

Site Status

Duke University Medical Center

Durham, North Carolina, United States

Site Status

Medical University of South Carolina (MUSC) - PPDS

Charleston, South Carolina, United States

Site Status

UT Physicians Rheumatology

Houston, Texas, United States

Site Status

Framingham Centro Médico

La Plata, Buenos Aires, Argentina

Site Status

Consultorio Médico Dra. Rivera

Buenos Aires, Ciudad Autónoma de BuenosAires, Argentina

Site Status

Centro de Investigaciones Médicas Tucumán - PPDS

San Miguel de Tucumán, Tucumán Province, Argentina

Site Status

Centro de Investigaciones Reumatológicas

San Miguel de Tucumán, Tucumán Province, Argentina

Site Status

Clínica Mayo de U.M.C.B. S.R.L

San Miguel de Tucumán, Tucumán Province, Argentina

Site Status

Aprillus Asistencia e Investigacion de Arcis Salud SRL

Buenos Aires, , Argentina

Site Status

Clínica Adventista Belgrano

Cuiudad Autónoma de Buenos Aires, , Argentina

Site Status

I.R. Medical Center - Hospital de Dia

Mendoza, , Argentina

Site Status

Prosalud y Cia Ltda.

Santiago, Región-MetropolitanadeSantiago, Chile

Site Status

Laiko General Hospital of Athens

Athens, Attica, Greece

Site Status

Euromedica Kianous Stavros

Thessaloniki, , Greece

Site Status

General Hospital of Thessaloniki ''Hippokratio''

Thessaloniki, , Greece

Site Status

The Chaim Sheba Medical Center - PPDS

Ramat Gan, Tel Aviv, Israel

Site Status

Tel Aviv Sourasky Medical Center Ichilov - PPDS

Tel Aviv, Tel Aviv, Israel

Site Status

Rambam Health Care Campus - PPDS

Haifa, , Israel

Site Status

Rabin Medical Center - PPDS

Petah Tikva, , Israel

Site Status

Azienda Sanitaria Universitaria Friuli Centrale - PO Universitario Santa Maria della Misericordia

Udine, Friuli Venezia Giulia, Italy

Site Status

Hokkaido University Hospital

Sapporo, Hokkaidô, Japan

Site Status

Sapporo Medical University Hospital

Sapporo, Hokkaidô, Japan

Site Status

Nagasaki University Hospital

Nagasaki, Nagasaki, Japan

Site Status

Saitama Medical University Hospital

Iruma-Gun, Saitama, Japan

Site Status

Juntendo University Hospital

Bunkyo-Ku, Tokyo, Japan

Site Status

Nippon Medical School Hospital

Bunkyo-Ku, Tokyo, Japan

Site Status

Osaka Medical and Pharmaceutical University Hospital

Takatsuki-Shi, Ôsaka, Japan

Site Status

Centro de Estudios de Investigacion Basica Y Clinica SC

Guadalajara, Jalisco, Mexico

Site Status

Centro Integral Reumatologia SA de CV

Guadalajara, Jalisco, Mexico

Site Status

Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran

Mexico City, Mexico City, Mexico

Site Status

Centro de Investigación y Tratamiento Reumatológico S.C

San Miguel Chapultepec, Mexico City, Mexico

Site Status

Centro de Alta Especialidad En Reumatologia E Investigacion Del Potosi SC

Burócratas Del Estado, San Luis Potosí, Mexico

Site Status

Clinica de Investigacion en Reumatologia y Obesidad

Guadalajara, , Mexico

Site Status

Unidad de Atencion Medica e Investigacion en Salud

Mérida, , Mexico

Site Status

CITER, Centro de Investigacion y Tratamiento de las Enfermedades Reumaticas SA de CV

México, , Mexico

Site Status

Malopolskie Centrum Kliniczne

Krakow, Lesser Poland Voivodeship, Poland

Site Status

Twoja Przychodnia NCM

Nowa Sól, Lubusz Voivodeship, Poland

Site Status

Medicover Integrated Clinical Services sp. z o.o - MICS - PPDS

Warsaw, Masovian Voivodeship, Poland

Site Status

Centrum Medyczne Reuma Park NZOZ

Warsaw, Masovian Voivodeship, Poland

Site Status

Hospital de Santa Maria-Avenida Prof. Egas Moniz - PPDS

Lisbon, , Portugal

Site Status

Sf.Maria Clinical Hospital

Bucharest, București, Romania

Site Status

Dr I Cantacuzino Clinical Hospital

Bucharest, București, Romania

Site Status

Centrul Medical de Diagnostic si Tratament Ambulator NEOMED SRL

Brasov, , Romania

Site Status

Institute of Rheumatology - PPDS

Belgrade, , Serbia

Site Status

Institute for Treatment and Rehabilitation Niska Banja

Niška Banja, , Serbia

Site Status

Chonnam National University Hospital

Gwangju, Gwangju Gwang'yeogsi, South Korea

Site Status

Seoul National University Bundang Hospital

Seongnam, Gyeonggido, South Korea

Site Status

Hanyang University Seoul Hospital

Seongdong-gu, Seoul Teugbyeolsi, South Korea

Site Status

Gangnam Severance Hospital, Yonsei University Health System

Seoul, , South Korea

Site Status

Hospital Universitario Marques de Valdecilla

Santander, Cantabria, Spain

Site Status

Hospital Universitario A Coruña

A Coruña, , Spain

Site Status

Hospital Universitario Vall d'Hebron - PPDS

Barcelona, , Spain

Site Status

Hospital de La Santa Creu i Sant Pau

Barcelona, , Spain

Site Status

Hospital General Universitario Gregorio Marañon

Madrid, , Spain

Site Status

Hospital Quironsalud Infanta Luisa

Seville, , Spain

Site Status

Hospital Universitario Doctor Peset

Valencia, , Spain

Site Status

Royal Free Hospital

London, London, City of, United Kingdom

Site Status

Countries

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United States Argentina Chile Greece Israel Italy Japan Mexico Poland Portugal Romania Serbia South Korea Spain United Kingdom

Provided Documents

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Document Type: Study Protocol

View Document

Document Type: Statistical Analysis Plan

View Document

Related Links

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http://www.amgentrials.com

AmgenTrials clinical trials website

Other Identifiers

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2023-509783-23-00

Identifier Type: CTIS

Identifier Source: secondary_id

HZNP-HZN-825-302

Identifier Type: -

Identifier Source: org_study_id

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