- ICH GCP
- Registro degli studi clinici negli Stati Uniti
- Sperimentazione clinica NCT07722546
A Study to Learn About The Effects of Felzartamab on Thyroid Function and Its Safety in Adults With Graves' Disease Ages 18 to 75 Years Old (GRAVITATE)
A Placebo-Controlled, Multicenter, Randomized Phase 2 Trial Evaluating the Efficacy and Safety of Felzartamab in Graves' Disease
In this study, researchers will learn more about the use of felzartamab in participants with Graves' Disease, also known as GD. GD is an autoimmune disease, which means the body's immune system attacks its own healthy cells. In people with GD, the immune system produces abnormal antibodies, called thyroid-stimulating hormone receptor antibodies (TRAb), that attack the thyroid gland. This causes the thyroid to become too active and produce too much hormone, a condition called hyperthyroidism.
Participants with GD are often treated with anti-thyroid drugs, or ATDs, which are medicines that help bring thyroid hormone levels back to normal. Felzartamab is designed to target certain immune cells that produce the abnormal TRAb antibodies.
The main goal of the study is to learn whether felzartamab can help bring thyroid hormone levels back to normal and allow participants to stop taking ATDs. Participants will receive either felzartamab or placebo during the study. A placebo looks like the study drug but contains no real medicine.
The main question that researchers want to answer is:
• How many participants have normal thyroid levels without receiving any ATD medicine at Week 24?
Researchers will also learn more about the safety of felzartamab and how the body processes the drug.
The study will be done as follows:
- Participants will be screened to check if they can join the study.
- This is a double-blind study, which means neither the participants, study doctor, or site staff will know if participants are receiving felzartamab or a placebo.
- Participants will be placed into 1 of 3 groups. Two groups will receive felzartamab while the other receives placebo.
- Participants will receive felzartamab or placebo as intravenous (IV) infusions, which are slow injections into a vein using a needle. The Treatment Period will last 20 weeks.
- During the Treatment Period, the study doctor may gradually lower the dose of the ATD if a participant's thyroid levels become normal.
- Afterwards, participants will enter a follow-up period which will last 12 weeks.
- In total, participants will have 22 study visits. Participants will stay in the study for about 9 months (up to 36 weeks).
Panoramica dello studio
Stato
Condizioni
Intervento / Trattamento
Descrizione dettagliata
Tipo di studio
Iscrizione (Stimato)
Fase
- Fase 2
Contatti e Sedi
Contatto studio
- Nome: US Biogen Clinical Trial Center
- Numero di telefono: 866-633-4636
- Email: clinicaltrials@biogen.com
Backup dei contatti dello studio
- Nome: Global Biogen Clinical Trial Center
- Email: clinicaltrials@biogen.com
Criteri di partecipazione
Criteri di ammissibilità
Età idonea allo studio
- Adulto
- Adulto più anziano
Accetta volontari sani
Descrizione
Key Inclusion Criteria:
Have active disease and are thyroid-stimulating hormone receptor antibodies (TRAb) positive, defined as:
- Free thyroxine (FT4) and free triiodothyronine (FT3), within the reference range,
- suppressed thyroid-stimulating hormone (TSH)
- TRAb levels > upper limit of normal (ULN)
- Participants must be receiving stable dose of anti-thyroid drugs (ATD) for at least 12 weeks prior to randomization.
- Must agree to refrain from blood product donation from Screening through end of study. If a participant terminates early from the study, they must refrain from blood product donation for 90 days following the last dose of study drug.
Key Exclusion Criteria:
- History of thyroidectomy or radioactive iodine therapy.
- ATD dose change within 12 weeks prior to Day1, or anticipated need for dose adjustment prior to randomization (except for protocol-defined safety management).
- Active, moderate-to-severe, or sight threatening thyroid eye disease (TED) (as assessed by the clinical activity score [CAS]), or requirement for imminent or ongoing TED-directed therapy (e.g., systemic glucocorticoids, biologic therapy, orbital radiation, surgery).
- Any history of malignancy within 5 years prior to Screening except for adequately treated in situ carcinoma of the cervix uteri, basal or squamous cell carcinoma or non-melanomatous skin cancer.
- History of hyperthyroidism not caused by GD (e.g. toxic multinodular goiter, autonomous thyroid nodule, acute inflammatory thyroiditis) and/or history or presence of thyroid storm.
- Type 1 diabetes and type 2 diabetes mellitus with hemoglobin A1c (HbA1c) > 8%.
- Known or suspected history of hypersensitivity to felzartamab or its excipients.
- Use of immunosuppressive therapy within 5 half-lives/12 weeks of Screening.
- Co-existing autoimmune diseases that require systemic immunosuppressants (e.g., cyclosporine, methotrexate, biologics, monoclonals).
- Prior use of an anti-Neonatal Fragment Crystallizable Receptor (FcRn) therapy or intravenous immunoglobulin (IVIg) within 6 months of the last dose prior to Screening.
- Any condition that requires chronic use of high-dose steroids.
NOTE: Other protocol-defined Inclusion/Exclusion criteria may apply.
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
- Scopo principale: Trattamento
- Assegnazione: Randomizzato
- Modello interventistico: Assegnazione parallela
- Mascheramento: Quadruplicare
Armi e interventi
Gruppo di partecipanti / Arm |
Intervento / Trattamento |
|---|---|
|
Sperimentale: Felzartamab
I partecipanti riceveranno più dosi IV di felzartamab.
|
Somministrato IV
Altri nomi:
|
|
Comparatore placebo: Placebo
Participants will receive multiple IV doses of placebo.
|
Amministrato IV
|
|
Sperimentale: Felzartamab or Placebo
Participants will receive multiple IV doses of felzartamab or placebo.
|
Amministrato IV
Somministrato IV
Altri nomi:
|
Cosa sta misurando lo studio?
Misure di risultato primarie
Misura del risultato |
Lasso di tempo |
|---|---|
|
Percentage of Participants who are Euthyroid and off Anti-Thyroid Drugs (ATD) at Week 24
Lasso di tempo: At Week 24
|
At Week 24
|
Misure di risultato secondarie
Misura del risultato |
Lasso di tempo |
|---|---|
|
Percentage of Participants who Have Down-Titrated to ≤ 50% of Their Baseline ATD and are Euthyroid at Week 12 and Week 24
Lasso di tempo: At Weeks 12 and 24
|
At Weeks 12 and 24
|
|
Percentage of Participants who are Euthyroid at Week 12 and Week 24
Lasso di tempo: At Weeks 12 and 24
|
At Weeks 12 and 24
|
|
Change From Baseline in Free Triiodothyronine (FT3)
Lasso di tempo: Baseline up to Week 32
|
Baseline up to Week 32
|
|
Change From Baseline in Free Thyroxine (FT4)
Lasso di tempo: Baseline up to Week 32
|
Baseline up to Week 32
|
|
Change From Baseline in Thyroid-Stimulating Hormone (TSH)
Lasso di tempo: Baseline up to Week 32
|
Baseline up to Week 32
|
|
Change From Baseline in ATD Levels
Lasso di tempo: Up to Week 24
|
Up to Week 24
|
|
Number of Participants With Adverse Events (AEs), Serious Adverse Events (SAEs) and Adverse Events of Special Interest (AESI)
Lasso di tempo: From first dose of study drug up to end of study follow-up (Up to Week 32)
|
From first dose of study drug up to end of study follow-up (Up to Week 32)
|
|
Felzartamab Serum Concentrations Over Time
Lasso di tempo: Predose and at multiple timepoints postdose up to Week 24
|
Predose and at multiple timepoints postdose up to Week 24
|
|
Number of Participants with Anti-drug Antibodies (ADAs) Against Felzartamab
Lasso di tempo: Baseline up to Week 24
|
Baseline up to Week 24
|
Collaboratori e investigatori
Sponsor
Investigatori
- Direttore dello studio: Medical Director, Biogen
Studiare le date dei record
Studia le date principali
Inizio studio (Stimato)
Completamento primario (Stimato)
Completamento dello studio (Stimato)
Date di iscrizione allo studio
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Effettivo)
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Effettivo)
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Parole chiave
Termini MeSH pertinenti aggiuntivi
Altri numeri di identificazione dello studio
- 299GD201
- 2026-526482-19-00 (Ctis)
Piano per i dati dei singoli partecipanti (IPD)
Hai intenzione di condividere i dati dei singoli partecipanti (IPD)?
Descrizione del piano IPD
Informazioni su farmaci e dispositivi, documenti di studio
Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti
Studia un dispositivo regolamentato dalla FDA degli Stati Uniti
prodotto fabbricato ed esportato dagli Stati Uniti
Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .
Prove cliniche su Malattia di Graves
-
University Hospital, GhentAttivo, non reclutanteIpertiroidismo | Orbitopatia di GravesBelgio
-
Suzhou Suncadia Biopharmaceuticals Co., Ltd.TerminatoOrbitopatia di Graves attiva da moderata a graveCina
-
The First Affiliated Hospital of Xiamen UniversityReclutamentoOftalmopatia di Graves | Orbitopatia di Graves | Malattia dell'occhio della tiroide, TEDCina
-
Betul UnerCompletatoMalattia di Graves (malattia di Basedow)Turchia (Türkiye)
-
Medical University of SilesiaReclutamentoOrbitopatia di GravesPolonia
-
University of PisaUniversity of Messina; University of Catania; Università degli Studi dell'InsubriaNon ancora reclutamento
-
University Hospital, MontpellierCompletato
-
University of PisaReclutamento
-
Hospital Universitario 12 de OctubreThe Queen Elizabeth Hospital; Hospital del Rio HortegaCompletatoEsoftalmo | Chirurgia | Orbitopatia, Graves
-
Medical University of ViennaSconosciutoOftalmopatia di Graves | Malattia di Graves | L'oftalmopatia di Graves è peggiorataAustria