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临床试验/NCT00923728
NCT00923728撤回不适用

A Phase 1 Trial of AVN944, an IMPDH Inhibitor, in Adults With Advanced Stage Solid Tumors

Vertex Pharmaceuticals Incorporated2 个研究点 分布在 1 个国家开始时间: 2009年4月最近更新:
适应症
相关药物

试验速览

阶段
不适用
状态
撤回
试验地点
2
主要终点
1. The dose limiting toxicities with AVN944 in patients with advanced stage solid tumors; 2. Maximum tolerated dose with AVN944 in patients with advanced stage solid tumors

研究概览

简要总结

Background:

  • AVN944 is an experimental cancer treatment drug, not yet approved by the U.S. Food and Drug Administration. To date, AVN944 as a single drug has been tested in several studies involving humans, including healthy volunteers, patients with leukemia, and patients with advanced pancreatic cancer.
  • More research is needed to determine the safety and effectiveness of AVN944.

Objectives:

  • To determine the safety of AVN944.
  • To determine the maximum tolerated dose (the highest dose that does not cause unacceptable side effects) of AVN944.
  • To see if AVN944 has any effect on patients' tumors.
  • To learn how the body breaks down AVN944.

Eligibility:

  • Patients 18 years of age and older who have advanced stage solid tumors for which standard therapies do not exist or are no longer effective.

Design:

  • Participants will have a screening visit and five clinic visits during the first treatment cycle. Additional treatment cycles will involve two clinic visits during each 28-day cycle. After participation in the study ends, patients will be asked to return within 28 days after the last dose of study drug for final study procedures.
  • Evaluations before the treatment period:
  • Physical examination, including vital signs and body weight checks, and pregnancy test for women who can become pregnant.
  • Questions about medications and side effects.
  • Blood and urine tests.
  • Disease evaluation with CT, chest x-ray, and additional laboratory tests depending on the type of cancer.
  • All patients will have blood samples taken at each visit.
  • Patients will take specific doses of AVN994 as directed by researchers, and will be asked to keep a diary to record their doses and any side effects. They will be monitored with frequent blood draws at each study visit to provide information on the safety and effectiveness of the drug.
  • During different cycles, patients will have their disease evaluated by researchers and will be asked if they wish to continue taking AVN994 as part of the study.

详细描述

Background:

  • The rate limiting step in the synthesis of guanine nucleotides is catalyzed by the enzyme inosine monophosphate dehydrogenase (IMPDH) and so inhibition of this enzyme will result in depletion of guanine nucleotide pools, cessation of DNA synthesis, cell cycle block at the Gr(1)/S interface and interference with cell division.
  • The reduction in guanine nucleotide pools interferes with the ability of G-coupled proteins to act as intracellular signal transducers. IMPDH inhibition.
  • AVN944 is a small-molecule, uncompetitive inhibitor of cell proliferation.
  • A Phase I study in patients with hematologic malignancies is active and accruing subjects. The maximum-tolerated dose (MTD) has not been reached and no pattern of organ-specific or dose-progressive toxicity has been observed.

Objectives:

Primary

  • The dose limiting toxicities with AVN944 in patients with advanced stage solid tumors.
  • The MTD with AVN944 in patients with advanced stage solid tumors.

研究设计

研究类型
Interventional
分配方式
Non Randomized
干预模型
Single Group
主要目的
Treatment
盲法
None

入排标准

年龄范围
18 Years 至 —(Adult, Older Adult)
性别
All
接受健康志愿者

入选标准

  • 未提供

排除标准

  • 未提供

结局指标

主要结局

1. The dose limiting toxicities with AVN944 in patients with advanced stage solid tumors; 2. Maximum tolerated dose with AVN944 in patients with advanced stage solid tumors

次要结局

  • 1. Single, repeat dose pharmacokinetics; 2. Inosine monophosphate dehydrogenase inhibition; 3. Anti-neoplastic responses

研究者

申办方类型
Industry

研究点 (2)

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