Bile Acid and Lipid Metabolism in Patients With Drug-induced Acute Insulin Resistance
试验速览
- 阶段
- 不适用
- 状态
- 终止
- 入组人数
- 3
- 试验地点
- 1
- 主要终点
- Ratio of 12-HBA to non-12-HBA
研究概览
简要总结
This is a prospective observational study with a primary goal of monitoring changes in circulating bile acid profiles and parameters of glucose and lipid metabolism prior, during, and after cancer treatment with agents that directly impair insulin action: PI3K inhibitors, AKT inhibitors, and mTOR inhibitors. Patients will not receive any cancer treatment specifically for the purposes of this study. Rather, this study will be based on treatment decisions made independently by participants' oncologists according to standard of care or other clinical trial protocol. This study seeks to enroll at least 25 participants each for PI3K inhibitors, mTOR inhibitors and, once available for open-label treatment, AKT inhibitors.
详细描述
The primary objective of this study is to determine the effect of drug-induced acute insulin resistance (diaIR) on the ratio of 12α-hydroxylated bile acids (12-HBA) to 12α-hydroxylated bile acids (non-12-HBA) in cancer patients treated with phosphatidylinositol-4,5-bisphosphate kinase (PI3K) inhibitors (PI3Ki), mammalian target of rapamycin (mTOR) inhibitors (mTORi), and AKT inhibitors (AKTi) once possible. Specifically, this study will: (1) verify the induction of diaIR by monitoring changes in fasting ± postprandial blood glucose, insulin/c-peptide, and fructosamine; and (2) assess qualitative and quantitative changes in the circulating bile acid (BA) pool (including bile acid intermediary metabolites) by mass spectrometry in the fasting ± postprandial states prior to and then at 2 and 4 weeks after starting treatment. This study focuses in particular on determining changes in the 12α-hydroxylated bile acids to 12α-hydroxylated bile acids, as well as each of these subclasses and their individual substituents as a proportion of the overall BA pool.
研究设计
- 研究类型
- Observational
- 观察模型
- Case Only
- 时间视角
- Prospective
入排标准
- 年龄范围
- 18 Years 至 99 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Age ≥ 18 years
- •Speaks English and/ or Spanish
- •Any cancer diagnosis
- •Planned for treatment with:
- •PI3K inhibitors
- •Alpelisib
- •Inavolisib
- •Any experimental PI3K inhibitor
- •AKT inhibitors (if these become available for open-label use during the study course)
- •Afuresertib
- •Capivasertib
- •Ipatasertib
- •Miransertib
- •Uposertib
- •mTOR inhibitors
- •Everolimus
- •Sirolimus
- •Temsirolimus
- •Signed informed consent
排除标准
- •Known dysglycemia
- •Known diagnosis of diabetes mellitus
- •Treatment with glucose-lowering medications at baseline
- •Sulfonylureas or meglitinides
- •Metformin >1000mg total daily dose
- •Thiazolidinediones
- •SGLT2 inhibitors
- •GLP-1 receptor agonists
- •DPP4 inhibitors
- •Amylin mimetics
- •Significant biochemical evidence of liver dysfunction on lab tests within 30 days before starting drug that have not fallen to below the following thresholds prior to starting drug
- •Significant functional or anatomical abnormalities of the small intestine
- •Use of certain medications at baseline, within 7 days of starting cancer drug
- •Allergy to cow dairy or soy (only excludes from MMTT, does not exclude from fasting blood draws)
- •Inability to provide informed consent
研究组 & 干预措施
Patients treated with PI3K/AKT/mTOR inhibitors for cancer
Patients with cancer being treated with PI3K/AKT/mTOR inhibitors will be studied prospectively for the impact of treatment on bile acid metabolism as a function of drug-induced acute insulin resistance. Treatments will be selected by patients' treating oncologist based on standard of care.
干预措施: Drug-induced acute insulin resistance due to PI3K inhibitor, AKT inhibitor, or mTOR inhibitor (Drug)
结局指标
主要结局
Ratio of 12-HBA to non-12-HBA
时间窗: 1-2 Months
Insulin resistance is expected to cause a rise in total bile acids, but with 12-alpha-hydroxylated bile acid (12-HBA) species outpacing non-12-alpha-hydroxylated bile acid (non-12-HBA) species, leading to a rise in the 12-HBA:non-12-HBA ratio. This would indicate that insulin resistance per se is sufficient to alter 12-HBA balance, and thus 12-HBA may be a useful therapeutic target for management of the macrovascular complications of insulin resistance. BA profile and levels of BA intermediates 7-HCO and 7,12-diHCO will be measured by LC-MS/MS when fasting +/- after 2-hour mixed meal tolerance test.
Insulin resistance
时间窗: 1-2 months
Determine the timing and extent of PI3K/AKT/mTOR inhibitor treatment on parameters of insulin resistance: glucose, insulin, c-peptide, and adiponectin when fasting +/- following 2-hour mixed meal tolerance test
次要结局
- Surrogate markers of BA signaling(1-2 months)
- Lipid profile(1-2 months)
研究者
Joshua Cook
Assistant Professor of Medicine at the Columbia University Medical Center
Columbia University