Personalized Immunotherapeutic for Antibiotic-resistant Infection
试验速览
- 阶段
- 早期 1 期
- 状态
- 已完成
- 入组人数
- 1
- 试验地点
- 2
- 主要终点
- Presence or absence of mycoplasma hominis cultured from joint and wound fluid
研究概览
简要总结
M. A. suffers from hypogammaglobulinemia that has been complicated by refractory Mycoplasma hominis septic arthritis. He has been receiving the antibiotic valnemulin under Emergency Investigational New Drug (eIND) 114686 following many prior treatments with standard antibiotics. M.A. has also been receiving intravenous immunoglobulin (IVIG) replacement. The antibiotic and IVIG have been helpful, but not sufficient for cure. Antibodies have been shown to be critical for defense against mycoplasma. Hyperimmune serum against mycoplasma isolated from rabbit or goat has been effective in cases of chronic erosive arthritis in the setting of immune deficiency, and in some cases resulted in cures. The investigators propose to use M. hominis isolated from M. A. to vaccinate one transgenic cow (developed by SAB Biotherapeutics), purify human antibody after vaccination, test the purified antibody in killing assays to confirm potency, and then administer the purified human IgG to M. A. after FDA compassionate use IND application and local Institutional Review Board (IRB) approval.
详细描述
M. A. suffers from hypogammaglobulinemia that has been complicated by refractory Mycoplasma hominis septic arthritis. He has been receiving the antibiotic valnemulin under Emergency Investigational New Drug (eIND) 114686 following many prior treatments with standard antibiotics. M.A. has also been receiving intravenous immunoglobulin (IVIG) replacement. The antibiotic and IVIG have been helpful, but not sufficient for cure.
Antibodies have been shown to be critical for defense against mycoplasma. Hyperimmune serum against mycoplasma isolated from rabbit or goat has been effective in cases of chronic erosive arthritis in the setting of immune deficiency, and in some cases resulted in cures.
SAB Biotherapeutics, Inc. (formerly Sanford Applied Biosciences, LLC) located in Sioux Falls, SD, have developed transchromosomic (Tc) cows containing human immunoglobulin (Ig) heavy (IgH) and light (IgL) chain loci in the setting of inactivated bovine IgH and Ig lambda loci. To date, SAB Biotherapeutics (SAB) has several products in development that have been tested in animal models, but to date no human trials.
Investigators propose to use M. hominis isolated from M. A. to vaccinate one transgenic cow, purify antibody after vaccination, test the purified antibody in killing assays to confirm potency, and then administer the purified human IgG to M. A. after FDA compassionate use IND application and local Institutional Review Board (IRB) approval.
M. A. is a highly educated person with full decision making capacity and is well aware of the uncertainties and risks associated with this treatment. This proposal is designed to offer this patient an alternative and perhaps curative approach to his disease.
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
- 性别
- Male
- 接受健康志愿者
- 否
入选标准
- •Adult with decision making capacity afflicted with chronic mycoplasma hominis septic arthritis despite standard treatments.
排除标准
- 未提供
结局指标
主要结局
Presence or absence of mycoplasma hominis cultured from joint and wound fluid
时间窗: from date of initiation of therapy up to 1 year
see publication below
Patency of fistula as assessed by clinical exam
时间窗: from date of initiation of therapy up to 1 year
see publication below
Pain reduction as measured by pain scale and amount of pain medication required
时间窗: from date of initiation of therapy up to 1 year
see publication below
次要结局
未报告次要终点
研究者
Duane Robert Wesemann
Associate Physician and Assistant Professor of Medicine
Brigham and Women's Hospital