- ICH GCP
- 미국 임상 시험 레지스트리
- 임상시험 NCT00722774
Safety and Immune Response to Recombinant Live-Attenuated Influenza H2N2 Virus Vaccine
Phase I Inpatient Study of the Safety and Immunogenicity of Live Influenza A Vaccine H2N2 (A/Ann Arbor/6/60 ca Recombinant), a Live Attenuated Virus Vaccine Candidate for Prevention of Influenza H2N2 Infection in the Event of a Pandemic
연구 개요
상세 설명
H2N2 influenza viruses emerged in the 1950s replacing the then circulating H1N1 human influenza virus. The first cases occurred in China in 1956, and disease became widespread in 1956-1957, resulting in the "Asian Influenza" pandemic that was responsible for between 1 and 4 million deaths worldwide. H2N2 viruses have not circulated since 1968, when they were replaced by H3N2 influenza viruses and the resurgence of H1N1 viruses. For this reason, a large proportion of the population is now susceptible to infection with H2N2 influenza. If this subtype re-emerges, it could potentially cause the next pandemic. This vaccine, therefore, is an important priority in the development of vaccines against potential pandemic influenza strains.
This vaccine trial will be conducted in the Center for Immunization Research isolation unit in the Mason F. Lord Building at the Johns Hopkins Bayview Medical Center (Baltimore, MD). The study will be initiated between April 1st and December 20th, 2008, when wild-type influenza is unlikely to be circulating in the Baltimore area.
An individual's participation in the study will last approximately 90 days. All participants will receive two vaccinations approximately 4 - 8 weeks apart. After each vaccination, participants will remain in isolation at the study site for at least nine days or until rRT-PCR assays for influenza are negative for 2 consecutive days. A physical examination and nasal wash will occur each day during the isolation period. Blood collection will occur in isolation beginning on Day 7 until release. Follow-up outpatient visits are scheduled on Days 28 and 56 after the first vaccination and on Day 28 after the second vaccination. Follow-up visits will include serum collection, nasal wash, and interim medical history.
연구 유형
등록 (예상)
단계
- 1단계
연락처 및 위치
연구 장소
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Maryland
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Baltimore, Maryland, 미국, 21205
- Johns Hopkins Bayview Medical Center, CIR Unit at the Mason F Lord Building
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참여기준
자격 기준
공부할 수 있는 나이
건강한 자원 봉사자를 받아들입니다
연구 대상 성별
설명
Inclusion Criteria:
- General good health
- Available for the duration of the trial
- If female, agree to use effective birth control methods for the duration of the study. More information on this criterion can be found in the protocol.
Exclusion Criteria:
- Evidence of clinically significant neurologic, cardiac, pulmonary, hepatic, rheumatologic, autoimmune, or renal disease. More information on this criterion can be found in the protocol.
- Behavioral or cognitive impairment or psychiatric disease that, in the opinion of the investigator, intereferes with the study
- Previous receipt of FluMist or any intranasal live attenuated influenza vaccine
- Previous enrollment in an H2N2 influenza vaccine trial or in any study of an avian influenza vaccine
- Seropositive to the H2N2 influenza A virus (serum HAI titer >1:8)
- Positive urine drug toxicology test indicating narcotic use and/or dependency as defined by the Drug Enforcement Agency
- Medical, occupational, or family problems as a result of alcohol or illicit drug use within the 12 months prior to study entry
- Any condition that, in the opinion of the investigator, would interfere with the study
- History of anaphylaxis
- Allergy to oseltamivir as determined by subject report
- Current diagnosis of asthma or reactive airway disease within 2 years prior to study entry
- History of Guillain-Barre Syndrome
- HIV-1-infected
- Hepatitis C-infected
- Positive hepatitis B virus surface antigen
- Known immunodeficiency syndrome
- Use of corticosteroids (excluding topical preparations) or immunosuppressive drugs within 30 days prior to study entry
- Receipt of a live vaccine within 4 weeks or a killed vaccine within 2 weeks prior to study entry
- History of a surgical splenectomy
- Receipt of blood or blood-derived products (including immunoglobulin) within 6 months prior to study entry
- Current smoker unwilling to stop smoking for the duration of the study. More information on this criterion can be found in the protocol.
- Travel to the Southern Hemisphere within 14 days prior to study entry
- Travel on a cruise ship within 14 days prior to study entry
- Direct contact with live poultry within the 14 days prior to the study or after study completion.
- Receipt of another investigational vaccine or drug within 30 days prior to study entry
- Allergy to eggs or egg products
- Pregnant or breastfeeding
공부 계획
연구는 어떻게 설계됩니까?
디자인 세부사항
- 주 목적: 방지
- 할당: 무작위화되지 않음
- 중재 모델: 단일 그룹 할당
- 마스킹: 없음(오픈 라벨)
무기와 개입
참가자 그룹 / 팔 |
개입 / 치료 |
|---|---|
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실험적: 1
참가자는 4~8주(28~62일) 간격으로 2회 백신 접종을 받습니다.
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Approximately 0.2 ml of 10^7 TCID50 doses of vaccine administered intranasally
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연구는 무엇을 측정합니까?
주요 결과 측정
결과 측정 |
기간 |
|---|---|
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각 참가자가 흘린 백신 바이러스의 양
기간: 공부하는 내내
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공부하는 내내
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백신 관련 반응성 사건 및 기타 부작용의 빈도
기간: 공부하는 내내
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공부하는 내내
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백신에 의해 유도된 혈청 및 비강 세척 항체의 양
기간: 공부하는 내내
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공부하는 내내
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2차 결과 측정
결과 측정 |
기간 |
|---|---|
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백신 바이러스 쉐드의 표현형 안정성
기간: 공부하는 내내
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공부하는 내내
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두 번째 백신 접종으로 면역원성이 강화되는지 여부와 첫 번째 백신 접종이 두 번째 접종의 복제를 제한하는지 확인
기간: 공부하는 내내
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공부하는 내내
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Number of participants infected with the H2N2 1960 AA ca recombinant vaccine
기간: Throughout study
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Throughout study
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T-cell mediated and innate immune responses against the H2N2 1960 AA ca recombinant vaccine
기간: Throughout study
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Throughout study
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공동 작업자 및 조사자
간행물 및 유용한 링크
일반 간행물
- Eichelberger M, Golding H, Hess M, Weir J, Subbarao K, Luke CJ, Friede M, Wood D. FDA/NIH/WHO public workshop on immune correlates of protection against influenza A viruses in support of pandemic vaccine development, Bethesda, Maryland, US, December 10-11, 2007. Vaccine. 2008 Aug 12;26(34):4299-303. doi: 10.1016/j.vaccine.2008.06.012. Epub 2008 Jun 26.
- Hampson AW. Vaccines for pandemic influenza. The history of our current vaccines, their limitations and the requirements to deal with a pandemic threat. Ann Acad Med Singap. 2008 Jun;37(6):510-7.
- Wright PF. Vaccine preparedness--are we ready for the next influenza pandemic? N Engl J Med. 2008 Jun 12;358(24):2540-3. doi: 10.1056/NEJMp0803650. No abstract available.
연구 기록 날짜
연구 주요 날짜
기본 완료 (실제)
연구 등록 날짜
최초 제출
QC 기준을 충족하는 최초 제출
처음 게시됨 (추정)
연구 기록 업데이트
마지막 업데이트 게시됨 (추정)
QC 기준을 충족하는 마지막 업데이트 제출
마지막으로 확인됨
추가 정보
이 연구와 관련된 용어
추가 관련 MeSH 약관
기타 연구 ID 번호
- CIR 247
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