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Aférese e procedimentos de coleta de amostras para obter plasma, células mononucleares de sangue periférico (PBMCs) e outras amostras para estudos de pesquisa

VRC 200: Um Protocolo Multicêntrico de Coleta de Amostras para Obter Amostras Biológicas Humanas para Estudos de Pesquisa

This study collects specimens from volunteers for use in studies by NIAID's Vaccine Research Center. A number of different types of specimens or samples can be collected, including blood, urine, body fluids or secretions, skin swabs, or skin biopsies. The samples are used for medical research, including the study of HIV, hepatitis, and other diseases; immune system responses, such as responses to vaccinations or infections; and for research on vaccine development.

Blood samples may be collected either by ordinary blood drawing (phlebotomy) or by apheresis, a procedure for collecting a larger quantity of blood cells or plasma than would be possible through simple blood drawing. For this procedure, the participant lies on a recliner or couch. Blood is removed through a needle in the vein of one arm and spun in a machine that separates out the desired component (plasma or white blood cells). The remainder of the blood is returned either through the same needle or through a needle in the other arm. The procedure takes about 1 to 3 hours.

Volunteers who are 18 years of age and older, including participants in other NIH research protocols, may be eligible. Individuals who have a condition that the research staff considers a reason not to make a sample donation will be excluded from the study.

Participants may have only one sample collected or may be asked to undergo repetitive sample collection procedures, depending upon the requirements of the particular research project for which the samples are being collected. Each individual's enrollment is for a 1-year period, which can be extended.

Visão geral do estudo

Status

Recrutamento

Condições

Descrição detalhada

Study Description:

This protocol is designed to collect human specimens, such as blood, mucosal secretions, skin swabs, skin biopsy, or body fluids to support medical research. These samples will be used by researchers, in their work on the development of vaccines and monoclonal antibodies, to study the correlates of immunity related to infectious diseases and allergies, and in laboratory work related to the development and/or validation of immunological and other relevant assays. Standard phlebotomy and apheresis procedures will be utilized to safely obtain necessary quantities of blood and cells.

Objectives:

To obtain human biological specimens such as blood (via phlebotomy), plasma or peripheral blood mononuclear cells (PBMC) samples (via apheresis), mucosal secretions, skin swabs, body fluids, and skin biopsy to support medical research.

Endpoints:

There are no specific endpoints in this study, as samples are collected for investigations conducted in research laboratories to address questions related to immunity and vaccine and monoclonal antibody development. Therefore, there is no analysis plan for this protocol. This protocol will be conducted in accordance with Good Clinical Practices for human research solely for the purpose of obtaining samples for research laboratories. Samples will be identified only by a participant identification number. Non-personally identifying information that will be linked to a participant ID only, such as demographic information, aspects of the medical history, laboratory parameters, recent immunizations or medications, genetic tests, and other medical information, may be provided to researchers if needed to support the objectives of the laboratory research.

Tipo de estudo

Observacional

Inscrição (Estimado)

3000

Contactos e Locais

Esta seção fornece os detalhes de contato para aqueles que conduzem o estudo e informações sobre onde este estudo está sendo realizado.

Contato de estudo

Locais de estudo

    • Maryland
      • Bethesda, Maryland, Estados Unidos, 20892
        • Recrutamento
        • National Institutes of Health Clinical Center
        • Contato:
    • Washington
      • Kirkland, Washington, Estados Unidos, 98034
        • Concluído
        • EvergreenHealth Medical Center
      • San Juan, Porto Rico, 00921
        • Ativo, não recrutando
        • University of Puerto Rico Medical Sciences Campus

Critérios de participação

Os pesquisadores procuram pessoas que se encaixem em uma determinada descrição, chamada de critérios de elegibilidade. Alguns exemplos desses critérios são a condição geral de saúde de uma pessoa ou tratamentos anteriores.

Critérios de elegibilidade

Idades elegíveis para estudo

3 anos e mais velhos (Filho, Adulto, Adulto mais velho)

Aceita Voluntários Saudáveis

Sim

Gêneros Elegíveis para o Estudo

Tudo

Método de amostragem

Amostra Não Probabilística

População do estudo

Participants may be individuals participating solely in this protocol or may be individuals in other VRC studies from whom more cells are needed for research than can be collected by routine phlebotomy.At the VRC site, NIH employees and members of their immediate families may participate in this protocol. The UPR MSC site will only enroll participants from the community. Children are not eligible to participate in this clinical trial.

Descrição

  • INCLUSION CRITERIA FOR ADULT PARTICIPANTS:

A participant must meet all the inclusion criteria, as follows:

  1. Age 18 years or older
  2. Able and willing to complete the informed consent process
  3. Willing to provide blood or other samples that will be stored indefinitely and used for future research
  4. Able to provide proof of identity to the acceptance of the clinician completing the enrollment process; when informed consent is obtained by telephone or a telehealth visit, the investigator obtaining consent will also confirm proof of identity.

INCLUSION CRITERIA FOR CHILDREN:

  1. Children aged 3 to 17 years inclusive, and at least 12 kg in weight.
  2. Capability of the legal adult guardian of the child to understand and comply with the planned study procedures.
  3. Capability of the legal adult guardian of the child to provide written informed consent.
  4. Willing to have blood drawn or collection of urine, fecal samples, oral secretions, or swabs of mucosa that will be stored indefinitely and used for future research.
  5. The legal adult guardian of the children can provide proof of identity for the child and for themselves to the satisfaction of the clinician completing the enrollment process.

EXCLUSION CRITERIA FOR ALL PARTICIPANTS:

A participant will be excluded from protocol participation if there is presence of a condition that the attending physician considers to be a contraindication to the specimen collection procedures.

EXCLUSION CRITERIA FOR CHILDREN ONLY

  1. Acute or chronic illness that, in the opinion of the investigator or designee, precludes participation in the study.
  2. Factors related to the legal guardian that, in the judgment of the investigator or designee, may affect the objective decision-making of the legal guardian.

SKIN BIOPSY ELIGIBILITY CRITERIA FOR ADULTS ONLY:

The skin biopsy eligibility includes the following:

  1. Age 18 years or older
  2. No known allergies to the local anesthetic to be used
  3. No history of keloid formation
  4. No known coagulation disorders
  5. Not pregnant or breast feeding

APHERESIS ELIGIBILITY CRITERIA FOR ADULTS ONLY:

  • To undergo an apheresis procedure, a participant must have no medical contraindications. All apheresis procedures performed under this protocol are solely for research purposes.
  • Participants involved in an active clinical research protocol may participate in the apheresis protocol if the total amount of blood drawn does not exceed NIH guidelines or a site's institutional guidelines. A study clinician will complete a checklist for apheresis eligibility before referring a participant for apheresis.
  • At the NIH, prior to the scheduled procedure, the participant must have a venous assessment performed by apheresis staff to determine suitability for apheresis.

For Healthy Volunteers:

A healthy volunteer must meet all the following criteria prior to the procedure:

  1. Age 18 years or older
  2. Afebrile (temperature <= 37.5 degrees C)
  3. Weight >=110 pounds
  4. Adequate bilateral antecubital venous access
  5. Hemoglobin >= 12.5 g/dL for women; >= 13.0 g/dL for men within 56 days prior to apheresis procedure.
  6. Platelets > 150,000 K/uL within 56 days prior to apheresis procedure.
  7. No cardiovascular instability as indicated by a) history of medically significant cardiac arrhythmia within the last 12 months, or b) ischemic cardiovascular disease within the last 12 months, or c) heart rate outside of the 50-100 beats/minute interval (on 3 successive readings), or d) blood pressure greater than 180 mmHg (systolic) or 100 mmHg (diastolic) on 3 successive readings
  8. No current lung or kidney disease
  9. No known coagulation disorder
  10. No sickle cell disease
  11. No active or chronic hepatitis
  12. No intravenous injection drug use in the past 5 years
  13. Not breast feeding
  14. Negative beta-human chorionic gonadotropin (beta-HCG) pregnancy test (urine or serum) performed by a VRC study clinician within 72 hours prior to the apheresis procedure

Patients with an Infectious Disease:

A patient with an infectious disease must meet all the following criteria:

  1. Age 18 years or older
  2. Weight >= 110 pounds
  3. Afebrile (temperature <= 37.5 degrees C)
  4. Adequate bilateral antecubital venous access
  5. No cardiovascular instability as indicated by a) history of medically significant cardiac arrhythmia within the last 12 months, or b) ischemic cardiovascular disease within the last 12 months, or c) heart rate outside of the 50-100 beats/minute (on 3 successive readings), or d) blood pressure greater than 180/100 mmHg (on 3 successive readings)
  6. No current lung or kidney disease
  7. No known coagulation disorder
  8. No receipt of clotting factor concentrates in the past 5 years
  9. Hemoglobin >= 9.0 g/dL within 56 days prior to apheresis procedure
  10. Platelets >= 50,000 K/uL within 56 days prior to apheresis procedure
  11. White Blood Cell (WBC) >= 2.0 K/uL within 56 days prior to apheresis procedure
  12. Not breast feeding
  13. Negative beta-human chorionic gonadotropin (beta-HCG) pregnancy test (urine or serum) performed by a VRC study clinician within 72 hours prior to the apheresis procedure

Plano de estudo

Esta seção fornece detalhes do plano de estudo, incluindo como o estudo é projetado e o que o estudo está medindo.

Como o estudo é projetado?

Detalhes do projeto

  • Modelos de observação: OTHER
  • Perspectivas de Tempo: PROSPECTIVE

Coortes e Intervenções

Grupo / Coorte
1

Sample collection only

O que o estudo está medindo?

Medidas de resultados primários

Medida de resultado
Descrição da medida
Prazo
Sample collection only
Prazo: end of study

This protocol does not have an analysis primary outcome measure, but rather will be conducted in accordance with Good Clinical Practices for human research solely for the purpose of obtaining samples for research laboratories. Samples will be identified only by protocol identification number. Participant data, such as demographic information, aspects of medical history, laboratory parameters, recent immunizations or medications, HLA type, genetic tests and other medical information may be provided (identified by study number, but not subject name) to researchers if needed to support the objectives of the laboratory research.

end of study

Colaboradores e Investigadores

É aqui que você encontrará pessoas e organizações envolvidas com este estudo.

Investigadores

  • Investigador principal: Lesia K Dropulic, M.D., National Institute of Allergy and Infectious Diseases (NIAID)

Publicações e links úteis

A pessoa responsável por inserir informações sobre o estudo fornece voluntariamente essas publicações. Estes podem ser sobre qualquer coisa relacionada ao estudo.

Datas de registro do estudo

Essas datas acompanham o progresso do registro do estudo e os envios de resumo dos resultados para ClinicalTrials.gov. Os registros do estudo e os resultados relatados são revisados ​​pela National Library of Medicine (NLM) para garantir que atendam aos padrões específicos de controle de qualidade antes de serem publicados no site público.

Datas Principais do Estudo

Início do estudo (Real)

10 de setembro de 2003

Datas de inscrição no estudo

Enviado pela primeira vez

8 de agosto de 2003

Enviado pela primeira vez que atendeu aos critérios de CQ

8 de agosto de 2003

Primeira postagem (Estimado)

11 de agosto de 2003

Atualizações de registro de estudo

Última Atualização Postada (Real)

28 de setembro de 2026

Última atualização enviada que atendeu aos critérios de controle de qualidade

25 de setembro de 2026

Última verificação

24 de setembro de 2026

Mais Informações

Termos relacionados a este estudo

Outros números de identificação do estudo

  • 030263
  • 03-I-0263

Informações sobre medicamentos e dispositivos, documentos de estudo

Estuda um medicamento regulamentado pela FDA dos EUA

Não

Estuda um produto de dispositivo regulamentado pela FDA dos EUA

Não

Essas informações foram obtidas diretamente do site clinicaltrials.gov sem nenhuma alteração. Se você tiver alguma solicitação para alterar, remover ou atualizar os detalhes do seu estudo, entre em contato com register@clinicaltrials.gov. Assim que uma alteração for implementada em clinicaltrials.gov, ela também será atualizada automaticamente em nosso site .

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