A Phase II Study of Epigenetic Therapy to Overcome Chemotherapy Resistance in Refractory Solid Tumors
A Phase II Study of Epigenetic Therapy With Hydralazine and Magnesium Valproate to Overcome Chemotherapy Resistance in Refractory Solid Tumors
Chemotherapy resistance, either innate or acquired requires for its development, expression changes on a large number of genes therefore, it has been hypothesized that epigenetic-mediated changes could be the responsible driving force for chemotherapy resistance. Aberrant DNA methylation and histone deacetylation are the main epigenetic alterations hence, their reversal by inhibitors of DNA methylation and histone deacetylases (HDACs) may overcome resistance in refractory solid tumors.
Patients will be treated with hydralazine and magnesium valproate starting from day -7 until chemotherapy ends which consists on the same pre-study protocol regimen on which patients progressed. Response and toxicity were evaluated. Global DNA methylation and HDAC activity were evaluated in the peripheral blood cells, as well as the plasma levels of valproic acid and hydralazine.
調査の概要
詳細な説明
研究の種類
入学
段階
- フェーズ2
連絡先と場所
研究場所
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Tlalpan
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Mexico City、Tlalpan、メキシコ、14080
- National Institute of Cancerología
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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:
- Aged18 years and older.
- Histologically proven malignant solid tumors who were receiving their second, third or fourth line of palliative chemotherapy and who showed at the second or third course progressive disease as their maximum response according to the RECIST criteria or to the IGCG CA125 criteria in case of ovarian cancer patients.
- Measurable disease defined by 1 of the following criteria: Any unidimensional measurable lesion ≥ 10 mm by standard MRI or CT scan for solid tumors; or at least 1 non-measurable lesion that is evaluable by nuclear medicine, tumor markers, or other reliable measures.
- Eastern Cooperative Oncology Group (ECOG) performance status ≤2; Absolute leukocyte count (≥4000/mm3), platelets ≥100,000/mm3, hemoglobin ≥9.0 g/dL; total bilirubin, aspartate amino transferase (AST) and alanine amino transferase (ALT) <1.5 the upper normal limit (UNL), creatinine ≤1.2 mg/dL or a calculated creatinine clearance of ≥60 mL/min.
- Life expectancy of more than three months,
- Written informed consent.
Exclusion Criteria:
- History of allergy to hydralazine or valproate.
- Past or present condition of rheumatic disease, central nervous system disease, heart failure from aortic stenosis and postural hypotension as diagnosed by a physician.
- Previous use of the experimental drugs (hydralazine and magnesium valproate)
- Pregnancy or breast-feeding.
- Uncontrolled systemic disease or infection.
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:非ランダム化
- 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)
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 |
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安全性
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Clinical benefit (complete response, partial response and stable disease)
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二次結果の測定
結果測定 |
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グローバル DNA メチル化
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HDAC inhibition
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Gene promoter demethylation from serum DNA
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協力者と研究者
捜査官
- スタディディレクター:Alfonso Duenas-Gonzalez, MD PhD、National Institute of Cancerología
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
研究の完了
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 (見積もり)
学習記録の更新
投稿された最後の更新 (見積もり)
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。
難治性固形腫瘍の臨床試験
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AstraZeneca募集Adv Solid Malig - H&N SCC、ATM Pro / Def NSCLC、胃がん、乳がん、卵巣がんスペイン, アメリカ, ベルギー, イギリス, フランス, ハンガリー, カナダ, 大韓民国, オーストラリア