Clinical Trial: Ebola Virus Disease Survivors: Clinical and Immunologic Follow-up

Study Status: Recruiting
Recruit Status: Recruiting
Study Type: Observational

Official Title: Partnership for Research on Ebola Virus (PREVAIL) III: Ebola Natural History Study

Brief Summary:

Background:

- Ebola is a lethal disease. A lot is still unknown about Ebola and its long-term effects. Researchers want to learn what ill health conditions Ebola survivors have. They want to learn if Ebola survivors can infect others in their household through close contact. They also want to learn if Ebola survivors are immune from getting Ebola again. To learn these things, they want to follow people in Liberia for 5 years.

Objectives:

- To learn how Ebola affects the health of survivors and the people they live with.

Eligibility:

- People in Liberia who had Ebola in the past 2 years, who share a household with someone who had Ebola, or who got ill and went to an Ebola Treatment Unit but were sent home because they did not have Ebola.

Design:

  • Participants will be screened with family illness history, physical exam, and blood tests. They may have an eye exam.
  • Ebola survivors and those who went to a Treatment Unit but did not have Ebola will visit a clinic at 3, 6, and 12 months, then every 6 months for 5 years. At each visit, they will repeat the screening tests.
  • Participants who live with someone who had Ebola will have only the screening visit. But they may be asked to return for follow-up visits. These visits will help researchers learn more about the differences between those who have had Ebola and those who have not.
  • Participants brought to the NIH Clinical Center will have documentation of positive Ebola virus PCR and a clinical syndrom

    Detailed Summary: Between 1994 and the present, there have been several Ebola virus outbreaks affecting mostly countries in Central Africa. However, the 2014 West African outbreak significantly exceeds all previous outbreaks in geographic range and number of individuals affected. Ebola virus disease (EVD) is highly lethal with case fatality rates of 70-80% in the current West African outbreak. While the clinical manifestations of acute Ebola virus infection are well documented, little is known about long-term sequelae, ability to transmit Ebola, or long-term protective immunity in survivors from EVD. The purpose of this protocol is to study these questions in a cohort of EVD survivors from Liberia.
    Sponsor: National Institute of Allergy and Infectious Diseases (NIAID)

    Current Primary Outcome:

    • To characterize the clinical sequelae seen in convalescent Ebola virus disease (EVD) patients. [ Time Frame: 10 years ]
    • Assess whether convalescent EVD patients can transmit infection to household and sexual contacts as determined by development of EVD or Ebola seroconversion in contacts [ Time Frame: 10 years ]


    Original Primary Outcome: Same as current

    Current Secondary Outcome: Better define the immune response in EVD survivors. [ Time Frame: 10 years ]

    Original Secondary Outcome: Same as current

    Information By: National Institutes of Health Clinical Center (CC)

    Dates:
    Date Received: April 30, 2015
    Date Started: April 24, 2015
    Date Completion: January 1, 2030
    Last Updated: April 21, 2017
    Last Verified: March 13, 2017