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Inflammatory Bowel Disease (IBD)Phase 3MICIVAXNCT01022749

Efficacy Safety Study of Flu Vaccine in Immunodepression Patients

A Phase 3 study testing Vaccine and Vaccine anti-H1N1 in people with Inflammatory Bowel Disease (IBD), run by Assistance Publique - Hôpitaux de Paris at 1 site in France.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The primary purpose of the study is to compare the efficacy and safety of influenza vaccine in patients with inflammatory bowel disease (IBD) receiving immunosuppressive therapy with patients not receiving immunosuppressants . Read more about this study

Who is it for?
Ages 18 to 64 years
Conditions the study is for
Inflammatory Bowel Disease (IBD)
What is being tested?
Vaccine and Vaccine anti-H1N1
Type of treatment
Vaccines
Could I receive a placebo?
No, everyone receives an active treatment
How many people
228 participants
Where
1 siteFrance
Study dates
Sep 2009to Jul 2013
Phase
Phase 3
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 64 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • informed consent signed
  • Age between 18 to 64
  • Patient suffering from chronic inflammatory bowel disease (Crohn's disease, ulcerative colitis, or indeterminate colitis)
  • For patients receiving at least one immunosuppressive or anti-TNF therapy: treatment introduced for at least 3 months
  • Patient willing to participate in the study throughout its duration and acceptance procedures related to the study (blood samples, self questionnaires, nasal swab and telephone follow-up)

Who cannot join

  • Patient treated by corticosteroid alone without immunosuppressive or anti-TNF
  • For women, being pregnant or positive pregnancy test
  • Known allergy to any component of the study vaccine or a history of hypersensitivity reaction to influenza vaccination
  • Fever (at least 37.5°C measured orally) or acute infection in the week prior to vaccination
  • Received influenza vaccination in the 6 months preceding enrollment
  • Known history of progressive neuropathy or Guillain-Barre
Show all 11Show fewer
  • Known infection with HIV and/or HBV (Ag-HBs positive) and/or HCV
  • Other causes of severe immune deficiency
  • Cellular therapy, immunoglobulin infusions, of blood products or monoclonal antibodies (except anti-TNF) in the 3 months prior to vaccination
  • Patient deprived of freedom by an administrative or court order
  • Patient non affiliated to a health social security system

Trial locations and contacts

1 site in 1 country.

France1 site
  • CIC Vaccinologie Hopital Cochin

    Paris, 75014

Other trials in France

About this study

Official title: Prospective, Multicentre, Open-label Study Evaluating the Immunogenicity and Safety of Influenza Vaccine in Patients With Inflammatory Bowel Disease (IBD) Receiving or Not Immunosuppressive Therapy

The primary purpose of the study is to compare the efficacy and safety of influenza vaccine in patients with inflammatory bowel disease (IBD) receiving immunosuppressive therapy with patients not receiving immunosuppressants .

The main objective of the study is to evaluate the humoral immunogenicity of influenza vaccination in patients with IBD

Read the detailed description

Annual vaccination against influenza is recommended for those at high risk of complications, particularly among patients with immunodeficiency including those resulting from immunosuppressive treatments administered for a chronic inflammatory bowel disease (IBD). However, published data showing that influenza vaccination coverage is low in this population (<30%) due to lack of data on the effectiveness of vaccination in these patients and the theoretical risk of negative impact on the evolution of IBD.

To improve influenza vaccination coverage of the population treated by immunosuppressants for a chronic IBD, it is essential to have data on the effectiveness of vaccination in these populations.

The research aims to evaluate the immunogenicity of influenza vaccination in patients followed for a chronic IBD.

Factors in choice of study population were as follows:

  1. IBD is a common disease. Among the inflammatory diseases treated with immunosuppressants and reaching patients under 65 years, IBD are among the most frequent. They result from an abnormal immune response to gut flora and their management often requires the prescription of immunosuppressive drugs (azathioprine, methotrexate, in particular) and more recently TNF-blockers;
  2. the existence of vaccine recommendations published recently for specific patients on immunosuppressive therapy at greatest risk of complications related to influenza;
  3. the fact that vaccinations have not been implicated in the pathogenesis of the disease;
  4. data showing that vaccination recommendations are poorly followed in this population. A recently published work found vaccination coverage against influenza of only 28% in a cohort of 169 patients treated for IBD;

The methodology chosen is a phase III, prospective, open, vaccine trial. The primary endpoint is the humoral immunogenicity induced by the vaccine.

The study is scheduled on 2 successive years to assess the value of annual vaccination repeated in this population treated with immunosuppressants.

There is a benefit for patients to participate in this study because they are all vaccinated against influenza and will benefit from a clinical and laboratory monitoring in this study. Moreover, these patients are taken to be vaccinated in the event of a pandemic influenza

Being tested
Vaccine, Vaccine anti-H1N1
Keywords
inflammatory bowel disease (IBD), immunosuppressed or non-immunosuppressed, influenza vaccine, antibody titers, seroprotective titers, vaccine-associated adverse events
Medical subject headings
Inflammatory Bowel Diseases, Influenza, Human

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • VaccineDrug

    MUTAGRIP (2009-2010 winter) VAXIGRIP (2010-2011 winter)

  • Vaccine anti-H1N1Biological

    patients who received the vaccine anti-H1N1

Study groups in NCT01022749
Study groupRoleWhat they receive
2Experimentalpatients with IBD receiving immunosuppressants (TNF blockers excluded) (n=100)
Receives: Drug: Vaccine
3Experimentalpatients with IBD receiving immunosuppressants including TNF blockers (n=100)
Receives: Drug: Vaccine
1Experimentalpatients with IBD not receiving immunosuppressant (n=100)
Receives: Drug: Vaccine
4Active comparatorpatients with IBD receiving immunosuppressants including TNF blockers (n=20)
Receives: Biological: Vaccine anti-H1N1

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Seroconversion rate

    Seroconversion rate in the overall population, defined as the geometric mean titers ratio post / pre-vaccination for each of the three vaccine strains

    Measured: 3-4 weeks after vaccination

Secondary outcomes (11)
  1. Seroconversion factor

    The seroconversion factor obtained for each of the three vaccine strains will be compared between each of the three groups (patients not receiving treatment, patients receiving immunosuppressants and patients receiving immunosuppressants including TNF) defined as the geometric mean titers ratio post / pre-vaccination for each of the three vaccine strains

    Measured: 3 weeks and 6 months after vaccination

  2. Seroprotection rate against the three vaccine strains

    The seroprotection rate (defined as the proportion of subjects attaining an anti-hemagglutinin titer ≥1:40) obtained 3-4 weeks after flu vaccination, against the three vaccine strains

    Measured: 3 or 4 weeks after of vaccination

  3. Seroprotection rate in the general population

    The seroprotection rate in the general population and according to the three groups of patients

    Measured: 3 weeks and 6 months after vaccination

  4. Seroconversion rate, geometric mean titers ratio before and after vaccination by haemagglutination inhibition assay

    The seroconversion rate, geometric mean titers ratio before and after vaccination by haemagglutination inhibition (HI) assay before and after vaccination

    Measured: after 3 weeks of vaccination

  5. Comparison of seroprotection rates for each of the three vaccine strains obtained in each of three groups

    Comparison of seroprotection rates for each of the three vaccine strains obtained in each of three groups (patients not receiving treatment, patients receiving immunosuppressants and patients, receiving immunosuppressants including TNF)

    Measured: 3 weeks and 6 months of vaccination

  6. Comparison of seroconversion factors obtained after 1 or 2 vaccinations in each of three groups of inflammatory bowel disease (IBD) and in the entire population

    Measured: After 3 weeks of vaccination

  7. Number of influenza episodes and confirmed flu during each influenza peak season

    Measured: 6 months after vaccination

  8. Occurrence of medical visits, emergency room visits, hospital admissions and deaths throughout the course of the study

    Measured: 18 months after vaccination

  9. Occurrence and intensity of local and general adverse events within 5 days after vaccine administration

    Measured: 5 days after vaccination

  10. Search of the determining factors to the influenza vaccine response

    Search of the determining factors to the influenza vaccine response: sex, age, previous vaccination against influenza, chronic smoking, the presence of other comorbidities (diabetes, renal failure, cirrhosis, ..), the nature of the IBD, the nature of the treatment of IBD and their duration, the number of immunosuppressive treatments associated and Disease Activity Index score of IBD at the vaccination time

    Measured: 18 months after vaccination

  11. Sub-immunological study

    Sub-immunological study each year of the study, the first and the second year (n=60, 20 patients per group): To determine if the LT-CD4 induction at J21-28 is correlated with the antibody anti-vaccines concentration measured within 6 months. To determine if the basal concentrations of anti-flu LT-CD4 at J21-J28 is correlated with the antibody anti-vaccines concentrations measured within 6 months.

    Measured: 6 months after vaccination

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted1 Dec 2009 (estimated)
  2. Study startSep 2009
  3. Primary completionJul 2011
  4. Study completionJul 2013

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Single group
Masking
None (open label)
Enrolment
228 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01022749
Sponsor's protocol ID
P 070165
Acronym
MICIVAX
Status last verified
Oct 2025
First submitted
30 Nov 2009
Last updated
20 Nov 2025
Results posted
No
Data monitoring committee
No

Publications

  • Loison E, Poirier-Beaudouin B, Seffer V, Paoletti A, Abitbol V, Tartour E, Launay O, Gougeon ML. Suppression by thimerosal of ex-vivo CD4+ T cell response to influenza vaccine and induction of apoptosis in primary memory T cells. PLoS One. 2014 Apr 1;9(4):e92705. doi: 10.1371/journal.pone.0092705. eCollection 2014.

    PubMed 24690681
  • Launay O, Abitbol V, Krivine A, Slama LB, Bourreille A, Dupas JL, Hebuterne X, Savoye G, Deplanque D, Bouhnik Y, Pelletier AL, Galtier F, Laharie D, Nachury M, Zerbib F, Allez M, Bommelaer G, Duclos B, Lucht F, Gougeon ML, Tartour E, Rozenberg F, Hanslik T, Beaugerie L, Carrat F; MICIVAX Study Group. Immunogenicity and Safety of Influenza Vaccine in Inflammatory Bowel Disease Patients Treated or not with Immunomodulators and/or Biologics: A Two-year Prospective Study. J Crohns Colitis. 2015 Dec;9(12):1096-107. doi: 10.1093/ecco-jcc/jjv152. Epub 2015 Sep 7.

    PubMed 26351392

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Vaccine and Vaccine anti-H1N1 in people with Inflammatory Bowel Disease (IBD), run by Assistance Publique - Hôpitaux de Paris at 1 site in France.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 11 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 20 Nov 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in France. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Seroconversion rate (time frame: 3-4 weeks after vaccination). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01022749, which also lists 2 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 20 Nov 2025.

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