Safety and Effectiveness of CD4-IgG2 in HIV-Positive Children
Phase I/II Trial of CD4-IgG2 in HIV-Infected Children
CD4-IgG2 is a special man-made protein that was built to block the entrance of HIV into CD4 cells (cells of the immune system that fight infection). The purpose of this study is to see if giving CD4-IgG2 to HIV-infected children is safe and effective.
HIV attaches to CD4 cells and enters them. Inside, HIV makes copies of itself that will help the virus invade the body. CD4 cells are killed or disabled during this process of HIV replication. Decreases in CD4 cells lead to a weakened immune system. When CD4 cell counts become very low, the body is unable to defend itself, and HIV infection develops into AIDS. The protein used in this study, CD4-IgG2, may be able to attach to HIV and inactivate it so that it cannot enter CD4 cells. This is an early study to examine CD4-IgG2 as a possible treatment for HIV in children.
研究概览
详细说明
Since CD4 is the high-affinity receptor for HIV-1, molecules such as CD4-IgG2, which incorporate the gp120 binding region of CD4, have the potential to bind and neutralize all strains of the virus. [AS PER AMENDMENT 4/25/00: Study results have demonstrated that the product is safe in children, well tolerated, and may have antiviral properties. With these encouraging results in hand, an extra cohort has been added using twice the dose of rCD4-IgG2 as in Cohort I.]
The study is conducted in two parts. In Part 1 patients receive a single dose of CD4-IgG2 intravenously at 1 of 4 dose levels. A minimum of 3 patients are treated at a given dose level. If none of these 3 patients experience Grade 3 or 4 toxicity, patients are escalated to the next dose level. If any of these 3 patients have life-threatening toxicities or if more than 1 of these 3 patients experience non-life-threatening Grade 3 or 4 toxicities, escalation stops and the prior dose (if any) is considered the maximum tolerated dose (MTD). If 1 of these 3 patients experiences non-life-threatening Grade 3 or 4 toxicities, 3 additional patients are treated at this dose level. If 1 or more of these 3 additional patients has Grade 3 or 4 toxicity, escalation stops. If none of these 3 additional patients has Grade 3 or 4 toxicity, patients are escalated to the next dose level.
Part 2 provides additional data on the safety, toxicity and pharmacokinetics of CD4-IgG2 when given in multiple doses. Patients receive the highest safe dose (MTD) as established in Part 1. Treatment is given intravenously once weekly at Weeks 0, 1, 2, and 3. If insufficient activity is seen at this dose level, 6 additional patients will be enrolled at a higher dose level. Patients who participate in Part 1 may enroll in Part 2 provided they are followed for at least 3 months and meet inclusion criteria for Part 2. If any patient experiences a life-threatening condition due to CD4-IgG2, the study will stop. [AS PER AMENDMENT 4/25/00: Cohort II receives twice the dose of Cohort I intravenously once weekly at Weeks 0, 1, 2 and 3. Pharmacokinetic samples are obtained at pre-dose and 1 hour after the doses are administered at Weeks 0, 1, and 2; and pre-dose, 1 hour, 24 hours, and Days 3, 7, and 14 after the dose are administered at Week 3. An overnight stay in the hospital is recommended for the first 24 hours. At Weeks 0, 1, 2, and 3, virology testing including HIV-1 RNA is performed with each infusion of CD4-IgG. Follow-up monitoring of patients is done once a month for 4 months for patients in Cohort II.]
研究类型
注册
阶段
- 阶段1
联系人和位置
学习地点
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California
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Long Beach、California、美国、90801
- Long Beach Memorial Med. Ctr., Miller Children's Hosp.
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Los Angeles、California、美国、900276016
- Childrens Hosp. LA - Dept. of Ped., Div. of Clinical Immunology & Allergy
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Los Angeles、California、美国、90090-1752
- UCLA-Los Angeles/Brazil AIDS Consortium (LABAC) CRS
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Orange、California、美国、92868
- Children's Hosp. of Orange County
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San Francisco、California、美国、941430105
- UCSF Pediatric AIDS CRS
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District of Columbia
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Washington、District of Columbia、美国、20010-2970
- Children's National Med. Ctr. Washington DC NICHD CRS
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Florida
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Jacksonville、Florida、美国、32209
- Univ. of Florida Jacksonville NICHD CRS
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Texas
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Houston、Texas、美国、77030
- Texas Children's Hosp. CRS
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参与标准
资格标准
适合学习的年龄
接受健康志愿者
有资格学习的性别
描述
Inclusion Criteria
Children may be eligible for this study if they:
- Are HIV-positive.
- Are 2-12 years old and have consent of parent or legal guardian.
- Have HIV levels of 10,000 copies/ml or more on at least 2 occasions and 30 days apart (Part 2 only).
- Have been on stable, unchanged anti-HIV therapy for 3 months before study entry.
Exclusion Criteria
Children will not be eligible for this study if they:
- Have an active opportunistic (HIV-related) infection.
- Are pregnant.
- Are taking certain medications.
- Have received any vaccinations within 30 days prior to study entry.
- Have a heart problem that would affect their ability to take part in the study. (This study has been changed. The original version didn't mention heart problems.)
学习计划
研究是如何设计的?
设计细节
- 主要用途:治疗
- 屏蔽:无(打开标签)
合作者和调查者
调查人员
- 学习椅:Stuart Starr
- 学习椅:William Shearer
出版物和有用的链接
研究记录日期
研究主要日期
研究完成 (实际的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (估计)
研究记录更新
最后更新发布 (实际的)
上次提交的符合 QC 标准的更新
最后验证
更多信息
此信息直接从 clinicaltrials.gov 网站检索,没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求,请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改,我们的网站上也会自动更新.
艾滋病毒感染的临床试验
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Hospital Clinic of Barcelona完全的
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Rajavithi Hospital未知研究在放疗前和放疗最后一周接受放疗的 HIV 癌症患者的免疫状态 | 研究在放疗前和放疗最后一周接受放疗的 HIV 癌症患者的 HIV 病毒载量泰国
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National Institute of Allergy and Infectious Diseases...完全的HIV-1 感染 | HIV抗体 | 中和抗体 | 病毒载量 | 单克隆抗体美国
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AIDS Healthcare FoundationUniversity of California, Los Angeles完全的
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ANRS, Emerging Infectious DiseasesInstitut National de la Santé Et de la Recherche Médicale, France; University of Bergen; Centre... 和其他合作者完全的
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Hospital Universitari Vall d'Hebron Research InstituteGilead Sciences完全的
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Hospital Universitari Vall d'Hebron Research InstituteUniversity Hospital, Ghent; IrsiCaixa完全的
CD4-IgG2的临床试验
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iCell Gene TherapeuticsPeking University Shenzhen Hospital; iCAR Bio Therapeutics Ltd.招聘中
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Singh, Ranjan Kumar, M.D.完全的
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National Institute of Allergy and Infectious Diseases...Genentech, Inc.完全的
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Bacchetta, Rosa, MDFood and Drug Administration (FDA); California Institute for Regenerative Medicine (CIRM)招聘中
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Genentech, Inc.完全的
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National Institute of Allergy and Infectious Diseases...Genentech, Inc.完全的