Quercetin Dyskeratosis Congenita (DC)/Telomere Biology Disorders (TBD)
Pilot Study of Quercetin Patients With Dyskeratosis Congenita/Telomere Biology Disorders
調査の概要
詳細な説明
研究の種類
入学 (推定)
段階
- フェーズ 1
連絡先と場所
研究連絡先
- 名前:Monica Trapp, BSN, RN, TCTCN
- 電話番号:5138038574
- メール:monica.trapp@cchmc.org
研究場所
-
-
Ohio
-
Cincinnati、Ohio、アメリカ、45229
- 募集
- Cincinnati Children's Hospital Medical Center
-
主任研究者:
- Parinda Mehta, MD
-
コンタクト:
- Sara Loveless
- メール:sara.loveless@cchmc.org
-
-
参加基準
適格基準
就学可能な年齢
- 子
- 大人
- 高齢者
健康ボランティアの受け入れ
説明
Inclusion Criteria:
Diagnosis of DC/TBD deficiency as defined by at least one of the following:
- Age adjusted mean-telomere length of <1 percentile in all tested peripheral blood cells such as granulocytes, lymphocytes, B-cells, naïve T-cells, memory T-cells, and NK cells
- A pathogenic or likely pathogenic mutation in DKC1, TERC, TERT, NOP10, NHP2, TINF2, CTC1, PARN, RTEL1, ACD, NAF1, ZCCHC8, or WRAP53
Patients ≥ 2.0 years of age*
- The first three enrolled patients must be ≥ 10.0 years of age
- Able to take medication orally
Exclusion Criteria:
- Renal failure requiring dialysis
- Total bilirubin >3 mg/dl and/or SGPT >300 at time of enrollment, unless elevation thought to be related to DC/TBD
- Patients who have received quercetin or any over-the-counter antioxidant supplementation within last 1 month
- Patients currently taking androgen therapy
- Patients receiving digoxin therapy, who are unable to discontinue treatment due to medical reasons
- Patients receiving fluoroquinolone therapy, who are unable to discontinue treatment due to medical reasons
- Patients who are pregnant or breastfeeding or are at risk of pregnancy and are unable to use acceptable methods of birth control during the length of the study
- Patients with morphologic or cytogenetic evidence of myelodysplasia or leukemia.
- Patients needing to start or actively receiving radiation therapy, chemotherapy or immunotherapy for treatment of SCC or other cancers.
- Patients with unstable disease status or other medical issues requiring hospitalization or rapid escalation of medical care
- Participating in another therapeutic study for DC/TBD
- Patients who are in the early post-stem cell transplant period (i.e. first 6 months post-transplant)
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:Quercetin
Quercetin dose (based on patient weight and as a percentage of adult dose - as noted in Table 2) will be given orally on a twice a day schedule starting with weight adjusted maximum total daily dose of 4000 mg/day (and administered in divided doses bid).
For patients who weigh 70 kg or more, the starting dose will be automatically assigned at the maximum dose of 4000 mg/day.
|
Quercetin (3, 30, 40, 5, 7-pentahydroxyflavone) is a naturally occurring antioxidant that belongs to a group of polyphenolic compounds known as flavonoids. Quercetin is routinely available as an over-the-counter product due to it being a nutritional supplement. However, for the purpose of the study, it will be purchased in the powder form from PCCA (supplied as 96% quercetin dihydrate) and stored and distributed by the investigational pharmacy at CCHMC using standard operational procedures. Quercetin is administered as an oral medication, supplied in powder form. Quercetin will be stored at room temperature. The product will be dispensed for home administration. Each packet will be labeled in accordance with applicable regulatory requirements. Patients or parents will be instructed to mix it with a small amount of yogurt or other preferred food for ingestion. |
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 |
|---|---|---|
|
Number of Participants With Treatment-Related Adverse Events as Assessed by CTCAE v5.0
時間枠:24 weeks
|
Participants will be evaluated by monitoring treatment-emergent adverse events, physical exam, and labs throughout the study treatment period.
|
24 weeks
|
|
Number of Participants who Discontinue Quercetin Due to Lack of Feasibility as defined in the protocol
時間枠:24 weeks
|
Participants will keep a log of medication administration and bring the same to their follow-up study visits, to demonstrate the feasibility of administering the supplement to patients consistently for a prolonged period of time (24 weeks).
If ≥3 out of the first 6 patients miss ≥2 weeks of continuous therapy during the 24 weeks of treatment, without medical reason for the same, study will pause and findings will be discussed with the medical monitor.
|
24 weeks
|
協力者と研究者
捜査官
- 主任研究者:Parinda Mehta, MD、Children's Hospital Medical Center, Cincinnati
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
追加の関連 MeSH 用語
その他の研究ID番号
- 2025-0657
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
米国FDA規制医薬品の研究
米国FDA規制機器製品の研究
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