RecruitingPhase 2NCT06111586

FrexalimAB in Preservation of Endogenous insULIN Secretion Compared to Placebo in adUlts and Adolescents on Top of inSulin Therapy (FABULINUS)

A 52-week Randomized, Double-blind, Placebo-controlled, Multi-center Phase 2b Study With a 52-week Blinded Extension and an Optional Open-label Extension - Assessing Safety and Efficacy of Frexalimab, a CD40L-antagonist Monoclonal Antibody, for Preservation of Pancreatic β-cell Function in Adults and Adolescents With Newly Diagnosed Type 1 Diabetes on Insulin Therapy


Sponsor

Sanofi

Enrollment

192 participants

Start Date

Dec 11, 2023

Study Type

INTERVENTIONAL

Conditions

Summary

This is a randomized, parallel group, double-blind Phase 2 study with a 52-week blinded extension evaluating the safety and efficacy of 3 dose levels of frexalimab in comparison with placebo in participants with newly diagnosed T1D on insulin treatment. Study details include: Screening period: at least 3 weeks and up to 5 weeks Double-blind treatment period (104 weeks): * Main treatment period: 52 weeks * Blinded extension: 52 weeks Optional Open Label Extension: 104 weeks Safety follow-up: up to 26 weeks The treatment duration will be up to 104 weeks, the total study duration will be up to 135 weeks.


Eligibility

Min Age: 12 YearsMax Age: 35 Years

Plain Language Summary

Simplified for easier understanding

This study (FABULINUS) tests frexalimab, a new drug designed to protect the insulin-producing cells that remain after type 1 diabetes is diagnosed. The goal is to see whether frexalimab, added on top of insulin therapy, helps preserve the body's own insulin production longer than insulin alone. **You may be eligible if...** - You or your adolescent child have been diagnosed with type 1 diabetes (per ADA criteria) - Insulin therapy was started no more than 90 days before the screening visit - You test positive for at least one type 1 diabetes antibody (GAD-65, IA-2, ZnT8, or insulin) - Your C-peptide level (a marker of remaining insulin production) is 0.2 nmol/L or higher - You are up to date on vaccinations **You may NOT be eligible if...** - You have a serious active infection - You have another form of diabetes (type 2, MODY, LADA, or medication-induced) - You have a history of cancer in the last 5 years - You have a history of blood clots, stroke, or heart attack - You have received prior immunosuppressive or immunomodulatory therapy - You are pregnant or breastfeeding Talk to your doctor to see if this trial is right for you.

This summary was AI-generated to explain the trial in plain language. It is not medical advice. Always discuss eligibility with your doctor before enrolling in a clinical trial.

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Interventions

DRUGFrexalimab

Intravenous (IV) Infusion at Day 1 and subcutaneous (SC) Injection from W2 to W102

DRUGPlacebo

IV Infusion at Day 1 and SC Injection from W2 to W102

DRUGInsulin

SC injection, dose and frequency will be established and/or adjusted by investigator


Locations(80)

University of California San Francisco - Mission Bay- Site Number : 8400012

San Francisco, California, United States

University of Colorado - Anschutz Medical Campus- Site Number : 8400003

Aurora, Colorado, United States

University of Florida College of Medicine- Site Number : 8400010

Gainesville, Florida, United States

University of Miami Hospital- Site Number : 8400013

Miami, Florida, United States

AdventHealth Orlando- Site Number : 8400002

Orlando, Florida, United States

Rocky Mountain Diabetes and Osteoporosis Center- Site Number : 8400009

Idaho Falls, Idaho, United States

NorthShore University Health System - Endeavor Health Medical Group - Skokie - Woods Drive- Site Number : 8400007

Skokie, Illinois, United States

Joslin Diabetes Center - Boston- Site Number : 8400015

Boston, Massachusetts, United States

University at Buffalo - Downtown Campus- Site Number : 8400004

Buffalo, New York, United States

University of North Carolina at Chapel Hill- Site Number : 8400001

Chapel Hill, North Carolina, United States

Cincinnati Children's Hospital Medical Center- Site Number : 8400019

Cincinnati, Ohio, United States

The Children's Hospital of Philadelphia Site Number : 8400005

Philadelphia, Pennsylvania, United States

University of Texas - Southwestern Medical Center- Site Number : 8400011

Dallas, Texas, United States

Benaroya Research Institute at Virginia Mason- Site Number : 8400016

Seattle, Washington, United States

Investigational Site Number : 0400002

Graz, Austria

Investigational Site Number : 0400004

Linz, Austria

Investigational Site Number : 0400001

Vienna, Austria

Investigational Site Number : 0560002

Brussels, Belgium

Investigational Site Number : 0560001

Leuven, Belgium

Investigational Site Number : 1240001

Vancouver, British Columbia, Canada

Investigational Site Number : 1240007

London, Ontario, Canada

Investigational Site Number : 1240005

Montreal, Quebec, Canada

Investigational Site Number : 1240004

Montreal, Quebec, Canada

Investigational Site Number : 1240003

Montreal, Quebec, Canada

Investigational Site Number : 2030003

Ostrava, Czechia

Investigational Site Number : 2030002

Prague, Czechia

Investigational Site Number : 2030001

Prague, Czechia

Investigational Site Number : 2080005

Herlev, Denmark

Investigational Site Number : 2460001

Helsinki, Finland

Investigational Site Number : 2460004

Oulu, Finland

Investigational Site Number : 2460003

Tampere, Finland

Investigational Site Number : 2460002

Turku, Finland

Investigational Site Number : 2500004

Corbeil-Essonnes, France

Investigational Site Number : 2500005

Mont-de-Marsan, France

Investigational Site Number : 2500006

Paris, France

Investigational Site Number : 2500007

Pontoise, France

Investigational Site Number : 2500003

Saint-Herblain, France

Investigational Site Number : 2760003

Dresden, Germany

Investigational Site Number : 2760001

Hanover, Germany

Investigational Site Number : 2760002

Oldenburg in Holstein, Germany

Investigational Site Number : 2760004

Ulm, Germany

Investigational Site Number : 3480001

Balatonfüred, Hungary

Investigational Site Number : 3480004

Budapest, Hungary

Investigational Site Number : 3480002

Nyíregyháza, Hungary

Investigational Site Number : 3480003

Nyíregyháza, Hungary

Investigational Site Number : 3480006

Székesfehérvár, Hungary

AOU delle Marche - Ospedale G. Salesi-Site Number : 3800008

Torette, Ancona, Italy

Azienda Ospedaliera Universitaria Meyer IRCCS-Site Number : 3800003

Florence, Firenze, Italy

IRCCS Ospedale San Raffaele-Site Number : 3800006

Milan, Milano, Italy

Azienda Ospedaliera Universitaria 'Federico II'-Site Number : 3800009

Naples, Napoli, Italy

Ospedale Pediatrico Bambin Gesu IRCCS-Site Number : 3800007

Rome, Roma, Italy

Azienda Ospedaliero-Universitaria Maggiore Della Carità-Site Number : 3800001

Novara, Italy

Azienda Socio Sanitaria Territoriale Dei Sette Laghi - Ospedale Filippo del Ponte-Site Number : 3800002

Varese, Italy

Azienda Ospedaliera Universitaria Integrata Verona - Centro regionale di Diabetologia Pediatrica-Site Number : 3800004

Verona, Italy

Investigational Site Number : 6160005

Lodz, Lódzkie, Poland

Investigational Site Number : 6160006

Warsaw, Masovian Voivodeship, Poland

Investigational Site Number : 6160004

Warsaw, Masovian Voivodeship, Poland

Investigational Site Number : 6160001

Warsaw, Masovian Voivodeship, Poland

Investigational Site Number : 6160007

Warsaw, Masovian Voivodeship, Poland

Investigational Site Number : 6160008

Bialystok, Podlaskie Voivodeship, Poland

Investigational Site Number : 6160002

Katowice, Silesian Voivodeship, Poland

Investigational Site Number : 6160009

Szczecin, West Pomeranian Voivodeship, Poland

Investigational Site Number : 7050001

Ljubljana, Slovenia

Investigational Site Number : 7240001

Barcelona, Barcelona [Barcelona], Spain

Investigational Site Number : 7240002

Esplugues de Llobregat, Barcelona [Barcelona], Spain

Investigational Site Number : 7240005

Oviedo, Principality of Asturias, Spain

Investigational Site Number : 7240003

Seville, Sevilla, Spain

Investigational Site Number : 7240004

Málaga, Spain

Investigational Site Number : 7240006

Valencia, Spain

Investigational Site Number : 7240007

Vitoria-Gasteiz, Álava, Spain

Investigational Site Number : 7520002

Solna, Sweden

Investigational Site Number : 7520001

Stockholm, Sweden

Investigational Site Number : 7520003

Stockholm, Sweden

Investigational Site Number : 8260001

Cambridge, Cambridgeshire, United Kingdom

Investigational Site Number : 8260009

Dundee, Dundee City, United Kingdom

Investigational Site Number : 8260003

Birmingham, England, United Kingdom

Investigational Site Number : 8260007

Birmingham, England, United Kingdom

Investigational Site Number : 8260010

Glasgow, Glasgow City, United Kingdom

Investigational Site Number : 8260004

Leicester, Leicestershire, United Kingdom

Investigational Site Number : 8260006

Harrow, London, City of, United Kingdom

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NCT06111586


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