Using influenza vaccination to help manage type 1 diabetes

INfluenza VaccInation To Mitigate typE 1 Diabetes (INVITED Trial)

Phase 4 Interventional Aarhus University Hospital · NCT05585983

This study is testing if getting the flu vaccine can help people with early type 1 diabetes keep their insulin-producing cells working better.

Quick facts

PhasePhase 4
Study typeInterventional
Enrollment100 (estimated)
Ages7 Years to 17 Years
SexAll
SponsorAarhus University Hospital Academic / other
Locations10 sites (Aalborg and 9 other locations)
Trial IDNCT05585983 on ClinicalTrials.gov

What this trial studies

This clinical trial investigates the effects of influenza vaccination on preserving β cell function in patients with early type 1 diabetes mellitus. It is a multicenter, prospective, randomized, controlled trial comparing the outcomes of patients receiving the influenza vaccine against those receiving a placebo. The study aims to determine if vaccination can sustain β cell function and improve disease management by measuring various health markers and immune responses. The trial is designed to provide insights into a potential immunotherapy approach for delaying the progression of type 1 diabetes.

Who should consider this trial

Good fit: Ideal candidates for this study are children and young adults aged 7 to 17 who have recently been diagnosed with type 1 diabetes and are hospitalized.

Not a fit: Patients who have received an influenza vaccination during the current season or have severe allergies to vaccine components may not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could lead to a simple and cost-effective method to preserve insulin-producing cells in patients with early type 1 diabetes.

How similar studies have performed: While the concept of using vaccination to modulate autoimmune responses is promising, this specific approach has not been widely tested, making it a novel investigation.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients hospitalized with newly diagnosed type 1 diabetes mellitus.
* Written informed consent (parents, legal guardian).

Exclusion Criteria:

* Influenza vaccination during the current influenza season.
* Strong indication for influenza vaccination for non-diabetic disease.
* Severe allergy to eggs or previous allergic reaction to influenza vaccine.
* Suspicion of febrile illness or acute, ongoing infection.
* Hypersensitivity to the active substances or ingredients of Vaxigrip Tetra or against any residues, such as eggs (ovalbumin or chicken proteins), neomycin, formaldehyde and octoxinol.
* Patients with endogenic or iatrogenic immunosuppression that may result in reduced immunization response.
* Inability to provide informed consent from a parent or legal guardian.
* Age \<7 or ≥18 years.
* Previous randomization in the INVITED trial.

Where this trial is running

Aalborg and 9 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Diabetes Mellitus, Type 1
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.