Treatment of Type I Diabetes by Pancreatic Islet Transplantation Into The Gastric Submucosa
试验速览
- 阶段
- 1 期
- 状态
- 已完成
- 发起方
- 入组人数
- 1
- 试验地点
- 2
- 主要终点
- Number of participants with treatment-related adverse events as assessed by CTCAE v4.0
研究概览
简要总结
The overall objective of this pilot project is to evaluate the safety and efficacy of the gastric submucosal space as a novel site for clinical islet transplantation. The site has several physiologic attributes that may improve the outcomes of islet transplantation compared with the conventional intraportal transplant site.
详细描述
The overall objective of this pilot project is to evaluate the safety and efficacy of the gastric submucosal space as a novel site for clinical islet transplantation. Safety will be evaluated by the monitoring of side effects such as post procedural GI complications, frequency of hypo and hyperglycemic events, and immunosuppression side effects. Efficacy will be determined by accepted measures including insulin independence, long term glucose control, and reduction/elimination of hypoglycemic events.
The site has several physiologic attributes that may improve the outcomes of islet transplantation compared with the conventional intraportal transplant site.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 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 90 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Key Inclusion Criteria:
- •Primary islet allotransplant
- •Type I diabetes mellitus for a minimum of 5 years
- •One or more of the following signs or symptoms despite intensive efforts made in close cooperation with their diabetic care team:
- •Metabolic lability/instability characterized by hypoglycemia or ketoacidosis (>2 hospital admissions in the previous year), erratic glucose profiles (MAGE>120 mg/dL), or disruption in lifestyle of danger to life, self or others
- •Reduced awareness of hypoglycemia or >1 episode in the last 1.5 years of severe hypoglycemia
- •Persistently poor glucose control (as defined by HgbA1c>10% at the end of six months of Intensive management efforts with the diabetes care team)
- •Progressive secondary complications as defined by (i) a new proliferative retinopathy or clinically significant macular edema or therapy with photocoagulation during the last year; or (ii) symptomatic autonomic neuropathy (as defined by postural hypotension or neuropathic bladder)
- •Age 18 and older
- •Patients who have a renal transplant must have received their transplant at least 3 months previously and must have stable renal function (see exclusion criteria below)
- •Must be able to give written informed consent
排除标准
- •Key Exclusion Criteria:
- •Lymphopenia (<1000/µL) or leukopenia ( <3000 total leukocytes/µL)
- •Presence of panel-reactive anti-HLA antibody >20%
- •Positive lymphocytotoxic cross-match using donor lymphocytes and serum
- •Evidence of acute EBV infection (IgM>IgG) OR no serologic evidence of previous exposure to EBV (IgG>IgM)
- •Calculated or measured GFR < 50 ml/min/m2 in patients without a renal transplant.
- •Calculated or measured GFR < 40 ml/min/m2 in patients with a renal transplant.
- •Portal hypertension or history of significant liver disease
- •History of malignancy within 10 years (except for treated basal or squamous cell CA of the skin)
- •Active peptic ulcer disease or other gastric mucosal abnormalities as identified on screening endoscopy
- •Severe unremitting diarrhea or other GI disorders potentially interfering with the ability to absorb oral medications
- •Untreated proliferative retinopathy
- •Pregnancy or breastfeeding
- •Female subjects not post-menopausal or surgically sterile who are sexually active but not using an acceptable method of contraception
- •Active infections
- •Serologic evidence of infection with HIV, or HbsAg or HCV Ab positive
- •Major ongoing psychiatric illness
- •Ongoing substance abuse, drug or alcohol; or recent history of noncompliance
- •Any condition that in the opinion of the Principal Investigator does not allow safe participation in the study
结局指标
主要结局
Number of participants with treatment-related adverse events as assessed by CTCAE v4.0
时间窗: Six months
Hypo- and Hyper-glycemia limits for blood glucose related risks; during procedure, abdominal pain, duodenal hemorrhage, and duodenal perforation post-procedure, fever, cytokine release syndrome (to the thymoglobulin), immunosuppression related issues
次要结局
未报告次要终点
研究者
Andrew Posselt
Principal Investigator
University of California, San Francisco