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Phase I/II Study of Decitabine and Valproic Acid in Relapsed/Refractory Leukemia or Myelodysplastic Syndromes

2014-07-24 14:33:30 | BioPortfolio

Summary

Valproic acid is a medication that is currently used in the prevention of seizures, bipolar disorder, and migraine headaches. Researchers hope that it may improve the effects of decitabine. Decitabine is a chemotherapy drug with known activity in leukemia and myelodysplastic syndromes.

Description

Recent studies have shown synergy between demethylating agents and histone deacetylase inhibitors. It has been shown that both DNA methylation and histone deacetylation work together in affecting gene expression.

Therefore, drugs that inhibit DNA methylation and those that inhibit histone deacetylase can reactivate silenced genes in combination better than they can individually. Decitabine (5 aza-2'deoxycytidine), a drug that produces marked DNA hypomethylator, has demonstrated antileukemic activity at low doses. There are several drugs that have been shown to have histone acetylase activity. One of these is valproic acid that has been used safely for many years as an anti-seizure medication.

Study Design

Allocation: Non-Randomized, Control: Active Control, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment

Conditions

Leukemia

Intervention

Decitabine, Valproic acid

Location

M.D. Anderson Cancer Center
Houston
Texas
United States
77030

Status

Completed

Source

M.D. Anderson Cancer Center

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-07-24T14:33:30-0400

Clinical Trials [2463 Associated Clinical Trials listed on BioPortfolio]

Decitabine (DAC) w/ or w/o Valproic Acid (VPA) in Myelodysplastic Syndrome (MDS) and Acute Myelogenous Leukemia (AML)

The goal of this clinical research study is to find out if decitabine, given with or without valproic acid, can help to control AML or MDS. The safety of both treatments will also be studi...

Decitabine With or Without Valproic Acid in Treating Patients With Relapsed or Refractory Non-Hodgkin's Lymphoma

RATIONALE: Drugs used in chemotherapy, such as decitabine, work in different ways to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing. Valproi...

HDAC Inhibitor Valproic Acid as an Effective Therapy for Chronic Lymphocytic Leukemia

OBJECTIVES To investigate: - the mechanism of Valproic Acid (VPA)-induced apoptosis in B-CLL - the ability of VPA in combination with standard chemotherapy or new antitumor...

Combined Therapy With Valproic Acid, All-trans Retinoic Acid (ATRA) and Cytarabine in Human Acute Myelogenous Leukemia (AML)

Hypothesis: Combined treatment with valproic acid and ATRA can be used to achieve disease stabilization for a subset of patients with acute myelogenous leukemia (AML), and this effect can ...

Study of Decitabine Alone or in Combination With Valproic Acid and All-trans Retinoic Acid in Acute Myeloid Leukemia

AML of the older patient constitutes a major unmet clinical need since the large majority will not be found eligible for induction chemotherapy. Reasons for this decision include host fact...

PubMed Articles [7549 Associated PubMed Articles listed on BioPortfolio]

The synergy of Vitamin C with decitabine activates TET2 in leukemic cells and significantly improves overall survival in elderly patients with acute myeloid leukemia.

Decitabine is widely used in the treatment of acute myeloid leukemia (AML) in elderly patients. Low-dose Vitamin C has also been indicated to induce DNA demethylation at the cellular level. However, l...

Evaluation ofserum free carnitine/acylcarnitine levels and left ventricular systolic functions in children with idiopathic epilepsy receiving valproic acid.

In the study, the effect of valproic acid on serum free/acylcarnitine levels and left ventricular systolic function in pediatric patients with idiopathic epilepsy receiving valproic acid was investiga...

Levocarnitine for the Treatment of Valproic Acid-Induced Hyperammonemic Encephalopathy in Children: The Experience of Large, Tertiary Care Pediatric Hospital and a Poison Center.

Although rare, symptomatic hyperammonemia is sometimes associated with valproic acid (VPA), especially in children. L-carnitine (levocarnitine), sometimes classified as an essential amino acid, is vit...

A Systematic Review of Population Pharmacokinetics of Valproic Acid.

Population pharmacokinetics is an essential tool that helps guiding individualized dosing regimens. The aims of this systematic review are to provide knowledge concerning population pharmacokinetics o...

Long-term use of valproic acid and the prevalence of cancers in bipolar disorder patients in a Taiwanese population: An association analysis using the National Health Insurance Research Database (NHIRD).

Epigenetic events play a major role in the carcinogenesis of many cancers. A retrospective cohort study had been performed to evaluate the effects of exposure to the anticonvulsant agent valproic acid...

Medical and Biotech [MESH] Definitions

A fatty acid with anticonvulsant properties used in the treatment of epilepsy. The mechanisms of its therapeutic actions are not well understood. It may act by increasing GAMMA-AMINOBUTYRIC ACID levels in the brain or by altering the properties of voltage dependent sodium channels.

A replication-defective strain of Murine leukemia virus (LEUKEMIA VIRUS, MURINE) capable of transforming lymphoid cells and producing a rapidly progressing lymphoid leukemia after superinfection with FRIEND MURINE LEUKEMIA VIRUS; MOLONEY MURINE LEUKEMIA VIRUS; or RAUSCHER VIRUS.

A strain of Murine leukemia virus (LEUKEMIA VIRUS, MURINE) producing leukemia of the reticulum-cell type with massive infiltration of liver, spleen, and bone marrow. It infects DBA/2 and Swiss mice.

A strain of Murine leukemia virus (LEUKEMIA VIRUS, MURINE) arising during the propagation of S37 mouse sarcoma, and causing lymphoid leukemia in mice. It also infects rats and newborn hamsters. It is apparently transmitted to embryos in utero and to newborns through mother's milk.

A chronic leukemia characterized by a large number of circulating prolymphocytes. It can arise spontaneously or as a consequence of transformation of CHRONIC LYMPHOCYTIC LEUKEMIA.

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