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
調査の概要
研究の種類
入学 (推定)
段階
- フェーズ 3
連絡先と場所
研究連絡先
- 名前:Sabine Coppieters, MD
- 電話番号:857-350-4834
- メール:clinicaltrials@argenx.com
研究場所
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Surrey、カナダ、V3T 2V6
- 募集
- TLC Diabetes and Endocrinology Clinic
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コンタクト:
- Akshay Jain, MD
- 電話番号:+14032883224
- メール:oxyjain@gmail.com
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Quebec
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Montreal、Quebec、カナダ、H4J1E3
- 積極的、募集していない
- Endocrinologie Oasis
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Batumi、グルジア、6000
- 募集
- High Technology Hospital Medcenter LLC
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コンタクト:
- Inga Abesadze, MD
- 電話番号:+995577137404
- メール:ingaabesadze777@gmail.com
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Tbilisi、グルジア、0160
- 募集
- LTD MediClub Georgia
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コンタクト:
- Nino Dolidze, MD
- 電話番号:+995600000000
- メール:n.dolidze@mcg.ge
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Tbilisi、グルジア、0102
- 募集
- First Medical Clinic Ltd
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コンタクト:
- Maia Rekhviashvili, MD
- メール:rekhviashvili67@yahoo.com
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Sliven、ブルガリア、8800
- 積極的、募集していない
- Multiprofile Hospital for Active Treatment Hadzhi Dimitar OOD
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Bydgoszcz、ポーランド、85-605
- 積極的、募集していない
- Centrum Medyczne Intercor Sp. z o.o.
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Zamość、ポーランド、22400
- 積極的、募集していない
- ETC Zamosc
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Kauno
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Kaunas、Kauno、リトアニア、50161
- 積極的、募集していない
- Hospital of Lithuanian University of Health Sciences Kaunas
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Iizuka、日本、820-8505
- 募集
- Aso Iizuka Hospital
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コンタクト:
- Tomoaki Inoue, MD
- 電話番号:+81948223800
- メール:tinoueh9@aih-net.com
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Kawasaki、日本、211-8533
- 募集
- Nippon Medical School Musashikosugi Hospital
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コンタクト:
- Yuji Yamaguchi, MD
- メール:y-yamaguchi@nms.ac.jp
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Kitakyushu、日本、807-8556
- 募集
- Hospital of University of Occupational and Environmental Health
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コンタクト:
- Keiichi Torimoto, MD
- メール:torimoto@med.uoeh-u.ac.jp
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Kyoto、日本、612-0861
- 募集
- National Hospital Organization Kyoto Medical Center
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コンタクト:
- Naotetsu Kanamoto, MD
- 電話番号:+81756419161
- メール:kyotetsu@kuhp.kyoto-u.ac.jp
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Nagasaki、日本、852-8501
- 募集
- Nagasaki University Hospital
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コンタクト:
- Ichiro Horie, MD
- 電話番号:+81 095-819-7200
- メール:horie@nagasaki-u.ac.jp
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Shibuya City、日本、150-8308
- 募集
- Ito Hospital
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コンタクト:
- Natsuko Watanabe, MD
- 電話番号:81334A27411
- メール:n-watanabe@ito-hospital.jp
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Yokohama、日本、224-8503
- 募集
- SHOWA Medical University Northern Yokohama Hospital
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コンタクト:
- Yo Kunii, MD
- メール:y-kunii@med.showa-u.ac.jp
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Yonago、日本、683-8504
- 募集
- Tottori University Hospital
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コンタクト:
- Kazuhiko Matsuzawa, MD
- メール:k.matsuzawa@tottori-u.ac.jp
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参加基準
適格基準
就学可能な年齢
- 大人
- 高齢者
健康ボランティアの受け入れ
説明
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
研究計画
研究はどのように設計されていますか?
デザインの詳細
- 主な目的:処理
- 割り当て:ランダム化
- 介入モデル:並列代入
- マスキング:4倍
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
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実験的: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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プラセボコンパレーター:Part A - placebo PH20 SC PFS
Participants will receive placebo PH20 SC Via Prefilled Syringe (PFS) during the part A double-blinded treatment period.
|
Subcutaneous injection of placebo PH20 via Prefilled Syringe (PFS)
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実験的: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)
|
|
実験的:Part B - placebo PH20 SC PFS
Participants will receive placebo PH20 SC Via Prefilled Syringe (PFS) during the part B treatment period.
|
Subcutaneous injection of placebo PH20 via Prefilled Syringe (PFS)
|
|
実験的: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)
|
この研究は何を測定していますか?
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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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
時間枠: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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二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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Time to becoming euthyroid off ATDs in part A
時間枠: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
時間枠: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
時間枠: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
時間枠: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
時間枠: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)
時間枠: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
時間枠: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)
時間枠: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)
時間枠: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
時間枠:up to 74 weeks (part B) + up to 135 weeks
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ATDs: antithyroid drug
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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
時間枠: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
時間枠: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
時間枠: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
時間枠: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
時間枠:up to 24 weeks (part A) + 72 weeks (part C)
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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
時間枠:up to 98 weeks
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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
時間枠:up to 135 weeks
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TRAb: anti-TSHR autoantibodies
|
up to 135 weeks
|
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Incidence of ADA against efgartigimod in serum
時間枠: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
時間枠:up to 24 weeks (part A) + Up to 135 weeks
|
rHuPH20: recombinant human hyaluronidase PH20
|
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
時間枠: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
時間枠:Up to 50 weeks (part B)
|
ATDs: antithyroid drug
|
Up to 50 weeks (part B)
|
|
Percentage of participants who are euthyroid and receiving MMI ≤5 mg/day or CBZ ≤7.5 mg/day
時間枠:Up to 50 weeks (part B)
|
ATDs: antithyroid drug
|
Up to 50 weeks (part B)
|
|
Percentage of participants who remain euthyroid without ATDs
時間枠:up to 98 weeks (part B)
|
ATDs: antithyroid drug
|
up to 98 weeks (part B)
|
協力者と研究者
スポンサー
出版物と役立つリンク
便利なリンク
研究記録日
主要日程の研究
研究開始 (実際)
一次修了 (推定)
研究の完了 (推定)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (実際)
学習記録の更新
投稿された最後の更新 (実際)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
本研究に関する用語
その他の研究ID番号
- ARGX-113-25-GRD-3001
- 2025 (米国 NIH グラント/契約:Faculty of Social Sciences Scientific Grant at the University of Gdańsk)
- 2025-523333-26-00 (Ctis)
個々の参加者データ (IPD) の計画
個々の参加者データ (IPD) を共有する予定はありますか?
医薬品およびデバイス情報、研究文書
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