Anti-Influenza Hyperimmune Intravenous Immunoglobulin Pilot Study (INSIGHT 005: Flu-IVIG Pilot)


About this study

The purpose of this randomized, double-blind, placebo-controlled trial of intravenous hyperimmune immunoglobulin (Flu-IVIG) in individuals with influenza A or B is to determine the pharmacokinetic (PK) profile of Flu-IVIG and assess whether antibody levels observed following Flu-IVIG transfusion are similar to those predicted. This pilot study will inform a larger study that will be powered to compare Flu-IVIG with placebo for efficacy.

Participation eligibility

Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. There is no guarantee that every individual who qualifies and wants to participate in a trial will be enrolled. Contact the study team to discuss study eligibility and potential participation.

Inclusion Criteria:

  1. Signed informed consent
  2. Age greater than or equal to 18 years of age
  3. Outpatients or inpatients who are PCR or rapid Ag positive for influenza A or B preferably within 24 hours and no later than 6 days from symptom onset
  4. Onset of illness no more than 6 days before randomization, defined as when the patient first experienced at least one respiratory symptom, constitutional symptom or fever
  5. For women of child-bearing potential, a negative pregnancy test within one day prior to randomization and a willingness to abstain from sexual intercourse or use at least 1 form of hormonal or barrier contraception through Day 28 of the study
  6. Willingness to have blood and respiratory samples obtained and stored

Exclusion Criteria:

  1. If hospitalized, admitted for reasons other than influenza or complications of influenza
  2. Women who are pregnant or breast-feeding
  3. Strong clinical evidence (in the judgment of the site investigator) that the etiology of illness is primarily bacterial in origin.
  4. Prior treatment with any investigational drug therapy within 30 days prior to screening
  5. History of allergic reaction to blood or plasma products (as judged by the investigator)
  6. Known IgA deficiency
  7. A pre-existing condition or use of medication that, in the opinion of the investigator, may place the individual at a substantially increased risk of thrombosis (e.g., cryoglobulinemia, severe refractory hypertriglyceridemia, or clinically significant monoclonal gammopathy)
  8. Serum creatinine greater than or equal to 1.5 x ULN or known active kidney disease that may affect drug pharmacokinetics (e.g., nephrotic syndrome)
  9. Presence of any pre-existing illness that, in the opinion of the investigator, would place the individual at an unreasonably increased risk through participation in this study
  10. Patients who, in the judgment of the investigator, will be unlikely to comply with the requirements of this protocol
  11. Medical conditions for which receipt of 500mL volume may be dangerous to the patient (e.g., decompensated congestive heart failure)
  12. Suspicion that infection is due to an influenza strain or subtype other than A(H1N1)pdm09, H3N2, or influenza B (e.g., H5N1, H7N9)

Participating Mayo Clinic locations

Study statuses change often. Please contact the study team for the most up-to-date information regarding possible participation.

Mayo Clinic Location Status

Rochester, Minn.

Mayo Clinic principal investigator

Zelalem Temesgen, M.D.

Closed for enrollment

More information


  • The novel pandemic influenza A (H1H1) 2009 virus spread rapidly around the world in 2009. The paucity of prospective international epidemiologic data on predictors of clinical outcomes with pandemic (H1N1) 2009 virus infection stimulated the INSIGHT network, an international network of community and hospital-based investigators, to commence two worldwide clinical observational studies to describe pandemic (H1N1) 2009 virus activity. The purpose of these two studies was to estimate the percent of adult patients with illness due to laboratory-confirmed pandemic (H1N1) 2009 virus infection that experience clinically significant outcomes and to study factors related to these outcomes. Enrollment commenced in October 2009 and will continue until August 2011: as of the end of 2010, 62 sites in 14 countries in Australasia (12 sites), Europe (37) and North America (13) have enrolled 1365 adult patients, with 1049 enrollments into the FLU 002 outpatient study and 316 into the FLU 003 hospitalization study. These 'in progress' INSIGHT influenza observational studies may act as a model for obtaining epidemiological, clinical and laboratory information in future international disease outbreaks. Read More on PubMed
  • In late March 2009, an outbreak of a respiratory illness later proved to be caused by novel swine-origin influenza A (H1N1) virus (S-OIV) was identified in Mexico. We describe the clinical and epidemiologic characteristics of persons hospitalized for pneumonia at the national tertiary hospital for respiratory illnesses in Mexico City who had laboratory-confirmed S-OIV infection, also known as swine flu. Read More on PubMed
  • Studies from the Spanish influenza era reported that transfusion of influenza-convalescent human blood products reduced mortality in patients with influenza complicated by pneumonia. Treatments for H5N1 influenza are unsatisfactory, and convalescent human plasma containing H5N1 antibodies could be an effective therapy during outbreaks and pandemics. Read More on PubMed

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