肝臓同種移植微小環境および循環における免疫静止から活性化への移行の初期シグナル (iSYNAPSE)
肝臓同種移植微小環境および循環血液における免疫静止から活性化への移行の初期兆候(RTB-018)
This is a prospective multi-center, longitudinal study to determine efficacy of 50 percent Immunosuppression (IS) reduction. One hundred fully eligible participants will reduce IS by 50 percent in two steps. Liver tests will be checked every 0.5 months through month 4, once a month through month 12, and every other month through month 18. Liver transplant (LTx) center visits will take place at screening, months 6, 12 and 18 after initiating IS dose reduction. A protocol driven liver biopsy to adjudicate the endpoint will be performed at 18 months. The duration of the study from time of starting IS dose reduction to the primary endpoint assessment is 18 months.
The primary objective is to assess the efficacy of 50 percent IS dose reduction in children with Liver transplants (LTxs)
調査の概要
研究の種類
入学 (推定)
段階
- フェーズ2
連絡先と場所
研究連絡先
- 名前:Ada Chao
- 電話番号:415-353-7004
- メール:ada.chao@ucsf.edu
研究場所
-
-
California
-
San Francisco、California、アメリカ、94143
- 募集
- UCSF Benioff Children's Hospital
-
コンタクト:
- Emily Stekol Moore
- メール:emily.stekol@ucsf.edu
-
-
Colorado
-
Aurora、Colorado、アメリカ、80045
- まだ募集していません
- Children's Hospital Colorado
-
コンタクト:
- Michelle Landis
- メール:Michelle.landis@childrenscolorado.org
-
-
District of Columbia
-
Washington D.C.、District of Columbia、アメリカ、20007
- 募集
- MedStar Georgetown University Hospital
-
コンタクト:
- Iryna Asipenka
- メール:Iryna.M.Asipenka@medstar.net
-
-
Georgia
-
Atlanta、Georgia、アメリカ、30307
- まだ募集していません
- Emory University School of Medicine/Children's Healthcare of Atlanta
-
コンタクト:
- Jordyn Turner
- 電話番号:404-785-3690
- メール:Jordyn.turner@choa.org
-
-
Illinois
-
Chicago、Illinois、アメリカ、60611
- 募集
- Ann and Robert H. Lurie Children's Hospital of Chicago
-
コンタクト:
- Catherine Chapin
- 電話番号:312-227-5511
- メール:cchapin@luriechildrens.org
-
-
New York
-
New York、New York、アメリカ、10029
- 募集
- Icahn School of Medicine at Mount Sinai
-
コンタクト:
- Puja Patel
- 電話番号:212-659-8039
- メール:puja.patel4@mountsinai.org
-
New York、New York、アメリカ、10032
- 募集
- Columbia University Medical Center
-
コンタクト:
- Ava Whalen
- メール:w3876@cumc.columbia.edu
-
-
Ohio
-
Cincinnati、Ohio、アメリカ、45229
- 募集
- Cincinnati Children's Hospital Medical Center
-
コンタクト:
- Jennifer Hawkins
- 電話番号:513-636-7818
- メール:jennifer.hawkins@cchmc.org
-
-
Pennsylvania
-
Philadelphia、Pennsylvania、アメリカ、15224
- まだ募集していません
- Children's Hospital of Philadelphia
-
コンタクト:
- Bryanna Domenick
- 電話番号:267-425-1078
- メール:DOMENICKB@CHOP.edu
-
Pittsburgh、Pennsylvania、アメリカ、15213
- 募集
- University of Pittsburgh Medical Center
-
コンタクト:
- Daniel Pieratt
- メール:pierattdw@upmc.edu
-
-
Tennessee
-
Nashville、Tennessee、アメリカ、37232
- まだ募集していません
- Monroe Carell Jr. Children's Hospital at Vanderbilt
-
コンタクト:
- Carly Bhave
- メール:carly.bhave@vumc.org
-
-
参加基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
説明
Inclusion Criteria:
- Participant and parent or guardian must be able to understand and provide informed assent and consent, respectively
- Recipient of a living or deceased donor Liver transplant (LTx) at <7 years of age
- > 3 years but <7 years after LTx at the time of study enrollment
- Stable liver tests defined as baseline serum alanine aminotransferase (ALT) level < 30 IU/l and gamma-glutamyl transferase (GGT) level < 50 IU/l (based on the average of the 3 most recent values prior to screening; all must be within 1 year of screening; 2 must be within 6 months of screening)
- No Acute rejection (AR) or chronic rejection within 12 months of enrollment
- Tacrolimus monotherapy for > 6 months with baseline 12-hour trough levels <8 ng/mL (based on the average of 3 values prior to screening; all must be within 1 year of screening; 2 must be within 6 months of screening)
- Participants of childbearing potential must have a negative pregnancy test upon study entry
Exclusion Criteria:
- Liver transplant (LTx) for autoimmune disease, including autoimmune hepatitis or primary sclerosing cholangitis
- LTx for hepatitis B or hepatitis C
- Recipient of any other organ transplant or liver re-transplant, except for patients who have a repeat LTx within 30 days of first LTx who are eligible for enrollment
- >=50 percent dose increase in tacrolimus within 12 months of enrollment
- Discontinued a second Immunosuppression (IS) agent within 12 months of enrollment
- Systemic illness requiring chronic or recurrent use of IS for which there is a risk of reactivation if tacrolimus is reduced
- Use of medication to treat systemic conditions which in the judgement of the investigator could influence results of the study
- Active or chronic infection requiring treatment
- Inability or unwillingness to comply with the study protocol
- Use of investigational drug within 4 weeks (or 5 half-lives of investigational drug, whichever is longer) of enrollment
- Has any condition that, in the opinion of the investigator, will interfere with safe participation in the trial
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:なし
- 介入モデル:単一グループの割り当て
- マスキング:なし(オープンラベル)
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
|
実験的:IS dose reduction
Eligible participants will reduce immunosuppression (IS) by 50 percent in two steps. For subjects taking tacrolimus once daily:
For subjects taking tacrolimus twice daily:
For participants taking different doses of tacrolimus in the morning and evening, the clinical site will confer will the protocol chair and PI to determine the schedule for IS reduction |
Prospective multi-center, longitudinal study to determine the success rate of 50% immunosuppression (IS) dose reduction. One hundred fully eligible participants will reduce IS by 50% in two steps |
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 |
|---|---|---|
|
Achieving successful 50 percent Immunosuppression (IS) reduction
時間枠:At 18 months
|
Defined as meeting both biochemical and histological criteria of stability |
At 18 months
|
二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Proportion of Acute Rejection (AR) Episodes Within Each Banff Severity Category
時間枠:At 18 months
|
The proportion of acute rejection (AR) episodes within each observed Banff severity category will be measured. |
At 18 months
|
|
The proportion of participants who experience Acute rejection (AR)
時間枠:At 18 months
|
Defined as either biopsy-proven or clinical AR |
At 18 months
|
|
Achieving clinically successful 50 percent Immunosuppression (IS) reduction
時間枠:At 18 months
|
Defined as meeting biochemical but not histological criteria of stability |
At 18 months
|
協力者と研究者
捜査官
- スタディチェア:Sandy Feng, MD, Ph.D.、University of California San Francisco School of Medicine: Transplantation
- スタディチェア:John Bucuvalas, M.D.、Icahn School of Medicine at Mount Sinai: Transplantation
出版物と役立つリンク
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
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。