- ICH GCP
- US-Register für klinische Studien
- Klinische Studie NCT07596849
A Study to Assess Efficacy and Safety of Efgartigimod PH20 SC PFS in Adult Participants With Graves' Disease. (VitaliThy)
A Phase 3, Randomized, Double-Masked, Placebo-Controlled, Multicenter Study Evaluating the Efficacy and Safety of Efgartigimod PH20 SC PFS in Adult Participants With Graves' Disease Inadequately Controlled With Antithyroid Drugs
The main purpose of this study is to look at how efgartigimod affects thyroid function in adults with Graves' Disease (GD). The study will also check whether efgartigimod is safe and well tolerated. It will look at how efgartigimod is distributed and eliminated in the body, how it changes antibody levels, and how the immune system responds to it.
The study consists of a part A double-blinded treatment period, a part B treatment/observation period and a part C open-label treatment/observation period. During the part A and part B treatment periods, participants will receive efgartigimod PH20 SC via Prefilled Syringe (PFS) or placebo. During the part C open-label treatment period, participants will receive efgartigimod PH20 SC PFS. Participation in the different parts of the study will depend on the participant's response to treatment.
The total study duration for participants ranges from 63 to 135 weeks, depending on the response to treatment.
More information can be found here: https://clinicaltrials.argenx.com/vitalithy
Studienübersicht
Status
Bedingungen
Intervention / Behandlung
Studientyp
Einschreibung (Geschätzt)
Phase
- Phase 3
Kontakte und Standorte
Studienkontakt
- Name: Sabine Coppieters, MD
- Telefonnummer: 857-350-4834
- E-Mail: clinicaltrials@argenx.com
Studienorte
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Sliven, Bulgarien, 8800
- Aktiv, nicht rekrutierend
- Multiprofile Hospital for Active Treatment Hadzhi Dimitar OOD
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Batumi, Georgia, 6000
- Rekrutierung
- High Technology Hospital Medcenter LLC
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Kontakt:
- Inga Abesadze, MD
- Telefonnummer: +995577137404
- E-Mail: ingaabesadze777@gmail.com
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Tbilisi, Georgia, 0160
- Rekrutierung
- LTD MediClub Georgia
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Kontakt:
- Nino Dolidze, MD
- Telefonnummer: +995600000000
- E-Mail: n.dolidze@mcg.ge
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Tbilisi, Georgia, 0102
- Rekrutierung
- First Medical Clinic Ltd
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Kontakt:
- Maia Rekhviashvili, MD
- E-Mail: rekhviashvili67@yahoo.com
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Iizuka, Japan, 820-8505
- Rekrutierung
- Aso Iizuka Hospital
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Kontakt:
- Tomoaki Inoue, MD
- Telefonnummer: +81948223800
- E-Mail: tinoueh9@aih-net.com
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Kawasaki, Japan, 211-8533
- Rekrutierung
- Nippon Medical School Musashikosugi Hospital
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Kontakt:
- Yuji Yamaguchi, MD
- E-Mail: y-yamaguchi@nms.ac.jp
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Kitakyushu, Japan, 807-8556
- Rekrutierung
- Hospital of University of Occupational and Environmental Health
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Kontakt:
- Keiichi Torimoto, MD
- E-Mail: torimoto@med.uoeh-u.ac.jp
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Kyoto, Japan, 612-0861
- Rekrutierung
- National Hospital Organization Kyoto Medical Center
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Kontakt:
- Naotetsu Kanamoto, MD
- Telefonnummer: +81756419161
- E-Mail: kyotetsu@kuhp.kyoto-u.ac.jp
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Nagasaki, Japan, 852-8501
- Rekrutierung
- Nagasaki University Hospital
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Kontakt:
- Ichiro Horie, MD
- Telefonnummer: +81 095-819-7200
- E-Mail: horie@nagasaki-u.ac.jp
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Shibuya City, Japan, 150-8308
- Rekrutierung
- Ito Hospital
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Kontakt:
- Natsuko Watanabe, MD
- Telefonnummer: 81334A27411
- E-Mail: n-watanabe@ito-hospital.jp
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Yokohama, Japan, 224-8503
- Rekrutierung
- SHOWA Medical University Northern Yokohama Hospital
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Kontakt:
- Yo Kunii, MD
- E-Mail: y-kunii@med.showa-u.ac.jp
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Yonago, Japan, 683-8504
- Rekrutierung
- Tottori University Hospital
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Kontakt:
- Kazuhiko Matsuzawa, MD
- E-Mail: k.matsuzawa@tottori-u.ac.jp
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Surrey, Kanada, V3T 2V6
- Rekrutierung
- TLC Diabetes and Endocrinology Clinic
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Kontakt:
- Akshay Jain, MD
- Telefonnummer: +14032883224
- E-Mail: oxyjain@gmail.com
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Quebec
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Montreal, Quebec, Kanada, H4J1E3
- Aktiv, nicht rekrutierend
- Endocrinologie Oasis
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Kauno
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Kaunas, Kauno, Litauen, 50161
- Aktiv, nicht rekrutierend
- Hospital of Lithuanian University of Health Sciences Kaunas
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Bydgoszcz, Polen, 85-605
- Aktiv, nicht rekrutierend
- Centrum Medyczne Intercor Sp. z o.o.
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Zamość, Polen, 22400
- Aktiv, nicht rekrutierend
- ETC Zamosc
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Teilnahmekriterien
Zulassungskriterien
Studienberechtigtes Alter
- Erwachsene
- Älterer Erwachsener
Akzeptiert gesunde Freiwillige
Beschreibung
Inclusion Criteria:
- Is at least 18 years of age and the local legal age of consent for clinical studies when signing the ICF.
- Has a documented diagnosis of GD with TRAb (anti-thyrotropin receptor antibody) levels >=ULN (upper limit of normal) at screening
- Has active hyperthyroidism due to GD with TSH (thyroid-stimulating hormone) <0.1 mIU/L at screening
- Has been treated with MMI (methimazole) or CBZ (carbimazole) for at least 3 months before screening
Exclusion Criteria:
- History of hyperthyroidism not caused by GD (eg, toxic adenoma or toxic multinodular goiter)
- History of RAI (radioactive iodine) therapy or received a total thyroidectomy
- T3- or T4-containing medication or supplement (eg, levothyroxine, liothyronine, desiccated thyroid preparations, or thyroid-support supplements) received <6 weeks before screening
- Any complication of hyperthyroidism or underlying medical condition that would put the participant at undue risk. This includes arrhythmia or tachyarrhythmia related to GD, such as atrial fibrillation or atrial flutter not sufficiently controlled with medications.
- Graves' orbitopathy/Thyroid Eye Disease (GO/TED) requiring systemic therapy (eg, corticosteroids), orbital injections, orbital surgery, or orbital radiation, or expected immediate surgical intervention and/or planned corrective surgery/irradiation or medical therapy during the study
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
- Hauptzweck: Behandlung
- Zuteilung: Zufällig
- Interventionsmodell: Parallele Zuordnung
- Maskierung: Vervierfachen
Waffen und Interventionen
Teilnehmergruppe / Arm |
Intervention / Behandlung |
|---|---|
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Experimental: Part A - efgartigimod PH20 SC PFS
Participants will receive efgartigimod PH20 SC Via Prefilled Syringe (PFS) during the part A double-blinded treatment period.
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Subcutaneous injection of Efgartigimod PH20 Via Prefilled Syringe (PFS)
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Placebo-Komparator: Part A - placebo PH20 SC PFS
Participants will receive placebo PH20 SC Via Prefilled Syringe (PFS) during the part A double-blinded treatment period.
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Subcutaneous injection of placebo PH20 via Prefilled Syringe (PFS)
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Experimental: Part B - efgartigimod PH20 SC PFS
Participants will receive efgartigimod PH20 SC Via Prefilled Syringe (PFS) during the part B treatment period.
|
Subcutaneous injection of Efgartigimod PH20 Via Prefilled Syringe (PFS)
|
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Experimental: Part B - placebo PH20 SC PFS
Participants will receive placebo PH20 SC Via Prefilled Syringe (PFS) during the part B treatment period.
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Subcutaneous injection of placebo PH20 via Prefilled Syringe (PFS)
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Experimental: Part C - efgartigimod PH20 SC PFS
Participants, will receive efgartigimod PH20 SC PFS in the part C open-label treatment period
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Subcutaneous injection of Efgartigimod PH20 Via Prefilled Syringe (PFS)
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Was misst die Studie?
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
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Percentage of participants who are euthyroid (fT3, fT4, and TSH within normal ranges) off ATDs at week 24 in part A
Zeitfenster: up to 24 weeks (part A)
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free triiodothyronine: [fT3]; free thyroxine: [fT4]; ATDs: antithyroid drugs
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up to 24 weeks (part A)
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Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
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Time to becoming euthyroid off ATDs in part A
Zeitfenster: Up to 24 weeks (part A)
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ATDs: antithyroid drugs
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Up to 24 weeks (part A)
|
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Percentage of participants who are euthyroid and receiving MMI ≤5 mg/day or CBZ ≤7.5 mg/day at week 24 in part A
Zeitfenster: up to 24 weeks (part A)
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MMI: methimazole (also known as thiamazole); CBZ carbimazole
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up to 24 weeks (part A)
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Percentage of participants with fT3 and fT4 levels below the ULN off ATDs at week 24 in part A
Zeitfenster: Up to 24 weeks (part A)
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ULN : upper limit of normal; ATDs: antithyroid drugs
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Up to 24 weeks (part A)
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Percentage of participants who are euthyroid off ATDs and TRAb seronegative at week 24 in part A
Zeitfenster: up to 24 weeks (part A)
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TRAb: anti-TSHR autoantibodies; ATDs: antithyroid drugs
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up to 24 weeks (part A)
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Time to becoming euthyroid off ATDs and TRAb seronegative
Zeitfenster: up to 24 weeks (part A) + up to 135 weeks
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ATDs: antithyroid drugs; TRAb: anti-TSHR autoantibodies
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up to 24 weeks (part A) + up to 135 weeks
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Time to becoming euthyroid and receiving an ATD dose of MMI ≤5 mg/day or CBZ ≤7.5 mg/day (part A)
Zeitfenster: up to 24 weeks
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ATDs: antithyroid drugs; MMI: methimazole (also known as thiamazole); CBZ carbimazole
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up to 24 weeks
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Time to becoming euthyroid
Zeitfenster: up to 24 weeks (part A) + up to 135 weeks
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up to 24 weeks (part A) + up to 135 weeks
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Time to having fT3 and fT4 levels within normal ranges among participants who had fT3 and/or fT4 more than the ULN at baseline (part A)
Zeitfenster: up to 24 weeks (part A)
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ULN : upper limit of normal
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up to 24 weeks (part A)
|
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Time to having TSH within normal ranges among participants who have TSH lower than the LLN at baseline (part A)
Zeitfenster: up to 24 weeks (part A)
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TSH: thyroid-stimulating hormone; LLN: lower limit of normal
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up to 24 weeks (part A)
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Percentage of participants who remain euthyroid without ATDs and without efgartigimod PH20 SC PFS for 6, 12, and 18 months
Zeitfenster: up to 74 weeks (part B) + up to 135 weeks
|
ATDs: antithyroid drug
|
up to 74 weeks (part B) + up to 135 weeks
|
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Percentage of participants who remain euthyroid without ATDs and without efgartigimod PH20 SC PFS
Zeitfenster: up to 72 weeks (part C)
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ATDs: antithyroid drug
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up to 72 weeks (part C)
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Incidence of AEs and SAEs
Zeitfenster: up to 135 weeks
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AEs: adverse events ; SAEs: serious adverse events
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up to 135 weeks
|
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Change in ThyPRO-39 over time
Zeitfenster: Up to 135 weeks
|
The Thyroid-Specific Patient-Reported Outcome Short Form (ThyPRO-39) 39 item version of the ThyPRO.
Each item is related to a specific aspect of the participant's experience with their thyroid condition.
Each item is scored on a 5-point Likert scale, and the scores are then transformed to a 0-to-100 scale.
Higher scores indicate worse health status
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Up to 135 weeks
|
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Change in PROMIS-PF10a over time
Zeitfenster: up to 135 weeks
|
The Patient-Reported Outcomes Measurement Information System Physical Function-10 item (PROMIS-PF10a) is a self- administered physical functioning assessment comprising 10 items that measure respondents' ability to perform common physical tasks.
Scoring involves summing the numerical responses to each item; higher scores indicate better physical function.
|
up to 135 weeks
|
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Efgartigimod serum concentrations over time
Zeitfenster: up to 24 weeks (part A) + 72 weeks (part C)
|
up to 24 weeks (part A) + 72 weeks (part C)
|
|
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Percentage change from baseline in total IgG levels in serum over time
Zeitfenster: up to 98 weeks
|
IgG: immunoglobulin G
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up to 98 weeks
|
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Percentage change from baseline in TRAb serum levels over time
Zeitfenster: up to 135 weeks
|
TRAb: anti-TSHR autoantibodies
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up to 135 weeks
|
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Incidence of ADA against efgartigimod in serum
Zeitfenster: up to 24 weeks (part A) + up to 135 weeks
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ADA: antidrug antibody(ies)
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up to 24 weeks (part A) + up to 135 weeks
|
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Incidence of antibodies against rHuPH20 in plasma
Zeitfenster: up to 24 weeks (part A) + Up to 135 weeks
|
rHuPH20: recombinant human hyaluronidase PH20
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up to 24 weeks (part A) + Up to 135 weeks
|
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Incidence of NAb against efgartigimod in serum and rHuPH20 in plasma
Zeitfenster: up to 24 weeks (part A) + up to 135 weeks
|
NAb: neutralizing antibody(ies); rHuPH20: recombinant human hyaluronidase PH20
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up to 24 weeks (part A) + up to 135 weeks
|
|
Percentage of participants who remain euthyroid off ATDs
Zeitfenster: Up to 50 weeks (part B)
|
ATDs: antithyroid drug
|
Up to 50 weeks (part B)
|
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Percentage of participants who are euthyroid and receiving MMI ≤5 mg/day or CBZ ≤7.5 mg/day
Zeitfenster: Up to 50 weeks (part B)
|
ATDs: antithyroid drug
|
Up to 50 weeks (part B)
|
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Percentage of participants who remain euthyroid without ATDs
Zeitfenster: up to 98 weeks (part B)
|
ATDs: antithyroid drug
|
up to 98 weeks (part B)
|
Mitarbeiter und Ermittler
Sponsor
Publikationen und hilfreiche Links
Nützliche Links
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn (Tatsächlich)
Primärer Abschluss (Geschätzt)
Studienabschluss (Geschätzt)
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Tatsächlich)
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Tatsächlich)
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Zusätzliche relevante MeSH-Bedingungen
Andere Studien-ID-Nummern
- ARGX-113-25-GRD-3001
- 2025 (US NIH Stipendium/Vertrag: Faculty of Social Sciences Scientific Grant at the University of Gdańsk)
- 2025-523333-26-00 (Ctis)
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