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A Study of Guselkumab Given After Ustekinumab in Participants With Moderate to Severe Psoriasis in Routine Clinical Practice (G-START)

2026年8月27日 更新者:Janssen-Cilag Kft.

A Non-Interventional, Multi-Centric, Single Country Observational Study to Assess the Safety and Effectiveness of Guselkumab After Ustekinumab (Originator or Biosimilar) in Moderate to Severe Psoriasis Patients in Clinical Routine

The main purpose of this study is to describe how well Guselkumab works after switching from Ustekinumab in participants with moderate to severe psoriasis in a routine clinical setting. A long-term skin disease that causes red, scaly and sometimes painful, itchy patches on the skin.

調査の概要

状態

募集

条件

研究の種類

観察的

入学 (推定)

100

連絡先と場所

このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。

研究連絡先

研究場所

      • Budapest、ハンガリー、1088
        • 募集
        • Semmelweis University

参加基準

研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。

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

いいえ

サンプリング方法

非確率サンプル

調査対象母集団

Participants with moderate-to-severe psoriasis who are candidates for systemic treatment (according to the Guselkumab label) and who are medically indicated to switch from Ustekinumab or its biosimilar to Guselkumab can be included in this study.

説明

Inclusion criteria:

  • Must have a confirmed diagnosis of moderate-to-severe plaque psoriasis requiring systemic treatment
  • Participants who are currently being treated with Ustekinumab (either the originator or its biosimilar) and who are medically indicated to switch to Guselkumab, or for whom this switch is medically indicated, based on the current and valid national psoriasis (PsO) therapeutic protocol
  • Participants who, based on the Investigator's decision, should initiate treatment with Guselkumab
  • Participants must sign an informed consent form (ICF) allowing for data collection and source data verification in accordance with local requirements

Exclusion criteria:

  • Contraindication or hypersensitivity to Guselkumab or any other ingredient in the injection solution
  • Pregnancy or breastfeeding
  • Currently enrolled in an interventional study
  • Currently enrolled in an observational study sponsored or managed by a Janssen company
  • Previous use of guselkumab in any indication in participant history

研究計画

このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。

研究はどのように設計されていますか?

デザインの詳細

コホートと介入

グループ/コホート
Moderate to Severe Psoriasis: Guselkumab Switching From Ustekinumab
Participants with moderate-to-severe psoriasis who are candidates for systemic treatment (according to the guselkumab label) and who are medically indicated to switch from Ustekinumab or its biosimilar to receive Guselkumab in routine clinical practice will be enrolled. No drug will be provided as a part of this study. Only data available from routine clinical practice will be collected.

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
Percentage of Participants Achieving Absolute Psoriasis Area Severity Index (aPASI) <=3 at Week 20 Following Switch from Ustekinumab to Guselkumab
時間枠:At Week 20
Percentage of participants achieving aPASI less than or equal to (<=) 3 at Week 20 following the switch from Ustekinumab to Guselkumab will be reported. PASI is a widely used measurement tool used to assess the severity of psoriasis. The PASI produces a numeric score that can range from 0 (no psoriasis) to 72. A higher score indicates more severe disease.
At Week 20

二次結果の測定

結果測定
メジャーの説明
時間枠
Percentage of Participants Achieving aPASI <= 3 at Weeks 4, 12, 36 and 52
時間枠:At Weeks 4, 12, 36 and 52
Percentage of participants achieving aPASI <= 3 will be reported. PASI is a widely used measurement tool used to assess the severity of psoriasis. The PASI produces a numeric score that can range from 0 (no psoriasis) to 72. A higher score indicates more severe disease.
At Weeks 4, 12, 36 and 52
Percentage of Participants Achieving >= 75% Improvement in PASI (PASI 75) at Weeks 4, 12, 20, 36 and 52
時間枠:At Weeks 4, 12, 20, 36 and 52
Participants with an absolute percentage improvement of at least 75% will be considered having achieved PASI 75 at Weeks 4, 12, 20, 36 and 52. PASI is a widely used measurement tool used to assess the severity of psoriasis. The PASI produces a numeric score that can range from 0 (no psoriasis) to 72. A higher score indicates more severe disease.
At Weeks 4, 12, 20, 36 and 52
Percentage of Participants Achieving >= 90% Improvement in PASI (PASI 90) at Weeks 4, 12, 20, 36, and 52
時間枠:At Weeks 4, 12, 20, 36 and 52
Participants with an absolute percentage improvement of at least 90% will be considered having achieved PASI 90 at Weeks 4, 12, 20, 36 and 52. PASI is a widely used measurement tool used to assess the severity of psoriasis. The PASI produces a numeric score that can range from 0 (no psoriasis) to 72. A higher score indicates more severe disease.
At Weeks 4, 12, 20, 36 and 52
Percentage of Participants Achieving 100% Improvement in PASI (PASI 100) at Weeks 4, 12, 20, 36, and 52
時間枠:At Weeks 4, 12, 20, 36 and 52
Participants with an absolute percentage improvement of 100% will be considered having achieved PASI 100 at Weeks 4, 12, 20, 36 and 52. PASI is a widely used measurement tool used to assess the severity of psoriasis. The PASI produces a numeric score that can range from 0 (no psoriasis) to 72. A higher score indicates more severe disease.
At Weeks 4, 12, 20, 36 and 52
Absolute Changes in PASI Score from Baseline up to Weeks 4, 12, 20, 36 and 52
時間枠:Baseline up to Weeks 4, 12, 20, 36 and 52
Absolute changes in PASI scores from baseline to Weeks 4, 12, 20, 36 and 52 will be reported. PASI is a widely used measurement tool used to assess the severity of psoriasis. The PASI produces a numeric score that can range from 0 (no psoriasis) to 72. A higher score indicates more severe disease.
Baseline up to Weeks 4, 12, 20, 36 and 52
Absolute Changes in Body Surface Area (BSA) Score from Baseline up to Weeks 4, 12, 20, 36 and 52
時間枠:Baseline up to Weeks 4, 12, 20, 36 and 52
Absolute changes in BSA scores from baseline upto Weeks 4, 12, 20, 36 and 52 will be reported. BSA indicates the percentage of the total body surface area affected by psoriasis. For small-spotted psoriasis lesions, healthy skin between the lesions is not included in the assessment. BSA ranges from 0-100 in which the maximum value is 100.
Baseline up to Weeks 4, 12, 20, 36 and 52
Percentage of Participants Achieving Dermatology Life Quality Index (DLQI) <=5 at Weeks 4, 12, 20, 36 and 52
時間枠:At Weeks 4, 12, 20, 36 and 52
DLQI is a 10-item instrument questionnaire designed to assess the impact of the disease on a participant's quality of life. Each question is evaluated on a 4-point scale ranged from 0 (not at all) to 3 (very much); where higher scores indicate more impact on quality of life. Scores from all 10 questions are added up to give DLQI total score range from 0 (not at all) to 30 (very much). Higher scores indicate more impact on quality of life of participants.
At Weeks 4, 12, 20, 36 and 52
Percentage of Participants Achieving Dermatology Life Quality Index Relevant (DLQI-R) <=5 at Weeks 4, 12, 20, 36 and 52
時間枠:At Weeks 4, 12, 20, 36 and 52
The DLQI-R is calculated by summing the scores of all answered items on the 10-question DLQI questionnaire (each scored 0-3), excluding those marked as "not relevant" (NRR). The total DLQI-R score ranges from 0 (not at all) to 30 (very much). Higher scores indicate more impact on quality of life of participants.
At Weeks 4, 12, 20, 36 and 52
Percentage of Participants Achieving DLQI Score of 0 or 1 at Weeks 4, 12, 20, 36 and 52
時間枠:At Weeks 4, 12, 20, 36 and 52
DLQI is a 10-item instrument questionnaire designed to assess the impact of the disease on a participant's quality of life. Each question is evaluated on a 4-point scale ranged from 0 (not at all) to 3 (very much); where higher scores indicate more impact on quality of life. Scores from all 10 questions are added up to give DLQI total score range from 0 (not at all) to 30 (very much). Higher scores indicate more impact on quality of life of participants.
At Weeks 4, 12, 20, 36 and 52
Percentage of Participants Achieving DLQI-R score of 0 or 1 at Weeks 4, 12, 20, 36 and 52
時間枠:At Weeks 4, 12, 20, 36 and 52
The DLQI-R is calculated by summing the scores of all answered items on the 10-question DLQI questionnaire (each scored 0-3), excluding those marked as "not relevant" (NRR). The total DLQI-R score ranges from 0 (not at all) to 30 (very much). Higher scores indicate more impact on quality of life of participants.
At Weeks 4, 12, 20, 36 and 52
Absolute Changes in DLQI Scores from Baseline up to Weeks 4, 12, 20, 36 and 52
時間枠:Baseline up to Weeks 4, 12, 20, 36 and 52
Absolute changes in DLQI scores from baseline to Week 4, 12, 20, 36 and 52 will be reported. DLQI is a 10-item instrument questionnaire designed to assess the impact of the disease on a participant's quality of life. The total DLQI score ranges from 0 (not at all) to 30 (very much). Higher scores indicate more impact on quality of life of participants.
Baseline up to Weeks 4, 12, 20, 36 and 52
Absolute Changes in DLQI-R Scores from Baseline up to Weeks 4, 12, 20, 36 and 52
時間枠:Baseline up to Weeks 4, 12, 20, 36 and 52
Absolute changes in DLQI-R scores from baseline to Week 4, 12, 20, 36 and 52 will be reported. The DLQI-R is calculated by summing the scores of all answered items on the 10-question DLQI questionnaire (each scored 0-3), excluding those marked as "not relevant" (NRR). The total DLQI-R score ranges from 0 (not at all) to 30 (very much). Higher scores indicate more impact on quality of life of participants.
Baseline up to Weeks 4, 12, 20, 36 and 52
Absolute Change in Static Physician's Global Assessment of Genitalia (sPGA-G) Score Over Time
時間枠:Baseline up to Weeks 4, 12, 20, 36 and 52
In participants with anogenital psoriasis at baseline, absolute change in sPGA-G score over time will be reported. The sPGA-G describes the severity of psoriasis using 6 categories. Accordingly, the score ranges from 0-5, with higher scores indicating more severe psoriasis.
Baseline up to Weeks 4, 12, 20, 36 and 52
Percentage of Participants Achieving sPGA-G Score of 0 or 1 at Weeks 4, 12, 20, 36 and 52
時間枠:At Weeks 4, 12, 20, 36 and 52
In participants with anogenital psoriasis at baseline, the percentage of participants achieving sPGA-G score of 0 or 1 amongst the participants who had a >= 2 sPGA-G score at baseline will be reported. The sPGA-G describes the severity of psoriasis using 6 categories. Accordingly, the score ranges from 0-5, with higher scores indicating more severe psoriasis.
At Weeks 4, 12, 20, 36 and 52
Absolute Change in Physician´s Global Assessment of Hands and/or Feet (hf-PGA) Score Over Time
時間枠:Baseline up to Weeks 4, 12, 20, 36 and 52
In participants with palmoplantar psoriasis at baseline, absolute change in hf-PGA score over time will be reported. The hf-PGA describes the severity of psoriasis using 5 categories. Accordingly, the score ranges from 0-4, with higher scores indicating more severe psoriasis.
Baseline up to Weeks 4, 12, 20, 36 and 52
Percentage of Participants Achieving hf-PGA Score of 0 or 1 at Weeks 4, 12, 20, 36 and 52
時間枠:At Weeks 4, 12, 20, 36 and 52
In participants with palmoplantar psoriasis at baseline, percentage of participants achieving hf-PGA = 0 or 1 amongst the participants who had a >= 2 hf-PGA at baseline will be reported. The hf-PGA describes the severity of psoriasis using 5 categories. Accordingly, the score ranges from 0-4, with higher scores indicating more severe psoriasis.
At Weeks 4, 12, 20, 36 and 52
Absolute Change in Scalp-Specific Investigator Global Assessment (ss-IGA) Score Over Time
時間枠:Baseline up to Weeks 4, 12, 20, 36, and 52
In participants with scalp psoriasis at baseline, the absolute change in ss-IGA score over time will be reported. The ss-IGA describes the severity of psoriasis using 5 categories. Accordingly, the score ranges from 0-4, with higher scores indicating more severe psoriasis.
Baseline up to Weeks 4, 12, 20, 36, and 52
Percentage of Participants Achieving ss-IGA Score of 0 or 1 at Weeks 4, 12, 20, 36 and 52
時間枠:At Weeks 4, 12, 20, 36, and 52
In participants with scalp psoriasis at baseline, the percentage of participants achieving ss-IGA of 0 or 1 amongst the participants who had a >= 2 ss-IGA score at baseline will be reported. The ss-IGA describes the severity of psoriasis using 5 categories. Accordingly, the score ranges from 0-4, with higher scores indicating more severe psoriasis.
At Weeks 4, 12, 20, 36, and 52
Absolute Change in Fingernail Physician's Global Assessment (PGA-F) Score Over Time
時間枠:Baseline up to Weeks 4, 12, 20, 36, and 52
In participants with fingernail psoriasis at baseline, absolute change in PGA-F score over time will be reported. The PGA-F describes the severity of psoriasis using 5 categories and consists of scores ranging from 0 (Clear), 1 (Minimal), 2 (Mild), 3 (Moderate), 4 (Severe). Here, higher scores indicate more severity of psoriasis.
Baseline up to Weeks 4, 12, 20, 36, and 52
Percentage of Participants Achieving PGA-F Score of 0 or 1 at Weeks 4, 12, 20, 36 and 52
時間枠:At Weeks 4, 12, 20, 36, and 52
In participants with fingernail psoriasis at baseline, the percentage of participants achieving PGA-F score of 0 or 1 amongst participants who had a >=2 PGA-F at baseline will be reported. The PGA-F describes the severity of psoriasis using 5 categories and consists of scores ranging from 0 (Clear), 1 (Minimal), 2 (Mild), 3 (Moderate), 4 (Severe). Here, higher scores indicate more severity of psoriasis.
At Weeks 4, 12, 20, 36, and 52
Demographic Characteristics: Age
時間枠:At Baseline
Participant's age at the time of starting guselkumab treatment will be reported.
At Baseline
Demographic Characteristics: Sex
時間枠:At Baseline
Sex (male, female) of participants at the time of starting guselkumab treatment will be reported.
At Baseline
Demographic Characteristics: Weight
時間枠:At Baseline
Weight of participants at the time of starting guselkumab treatment will be reported.
At Baseline
Demographic Characteristics: Height
時間枠:At Baseline
Height of participants at the time of starting guselkumab treatment will be reported.
At Baseline
Clinical Characteristics: Time Since Psoriasis Diagnosis
時間枠:At Baseline
Time since psoriasis diagnosis (years), in participants starting guselkumab treatment will be reported.
At Baseline
Clinical Characteristics: Time Since First Symptoms
時間枠:At Baseline
Time since first symptoms (years), in participants starting guselkumab treatment will be reported.
At Baseline
Clinical Characteristics: Severity of Psoriasis
時間枠:At Baseline
Severity of psoriasis (mild, moderate, severe) in participants starting guselkumab treatment will be reported.
At Baseline
Clinical Characteristics: Affected Areas
時間枠:At Baseline
Affected areas (anogenital, nail, scalp, palmoplantar), in participants starting guselkumab treatment will be reported.
At Baseline
Clinical Characteristics: Prior and Baseline Treatments for Moderate to Severe Psoriasis
時間枠:At Baseline
Prior and baseline treatments for moderate-to-severe psoriasis, including start and stop dates (in years) in participants starting guselkumab treatment will be reported.
At Baseline
Number of Participants Switching from Ustekinumab or Biosimilars to Guselkumab
時間枠:At Baseline
Participants switching treatment and reason for switching treatment from Ustekinumab or biosimilars to Guselkumab will be reported.
At Baseline
Reason for Guselkumab Discontinuation
時間枠:Up to Week 52
Number of participants discontinuing guselkumab and reason for guselkumab discontinuation if happens during the study will be reported.
Up to Week 52
Number of Participants with Specific Psoriatic Comorbidities
時間枠:At Baseline
Specific psoriatic comorbidities at baseline will be reported.
At Baseline
Number of Participants with Adverse Events (AE)
時間枠:Up to Week 52
An AE is any untoward medical occurrence in a participant administered with a pharmaceutical product. An AE does not necessarily have a causal relationship with the treatment.
Up to Week 52

協力者と研究者

ここでは、この調査に関係する人々や組織を見つけることができます。

スポンサー

捜査官

  • スタディディレクター:Janssen-Cilag Kft. Clinical Trial、Janssen-Cilag Kft.

研究記録日

これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。

主要日程の研究

研究開始 (推定)

2026年9月15日

一次修了 (推定)

2029年1月30日

研究の完了 (推定)

2029年3月15日

試験登録日

最初に提出

2026年7月29日

QC基準を満たした最初の提出物

2026年8月4日

最初の投稿 (実際)

2026年8月5日

学習記録の更新

投稿された最後の更新 (実際)

2026年8月28日

QC基準を満たした最後の更新が送信されました

2026年8月27日

最終確認日

2026年8月1日

詳しくは

本研究に関する用語

その他の研究ID番号

  • CNTO1959PSO4038 (その他の識別子:Janssen Research & Development, LLC)

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?

はい

IPD プランの説明

The data sharing policy of Johnson & Johnson Innovative Medicine is available at www.jnj.com/innovativemedicine/our-innovation/clinical-trials/transparency. As noted on this site, requests for access to the study data can be submitted through Yale Open Data Access (YODA) Project site at yoda.yale.edu

医薬品およびデバイス情報、研究文書

米国FDA規制機器製品の研究

いいえ

この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。