A study to evaluate the immune health benefits of two selected probiotic strains

ISRCTN ISRCTN64739181
DOI https://doi.org/10.1186/ISRCTN64739181
Secondary identifying numbers HND-IM-001
Submission date
08/12/2010
Registration date
23/12/2010
Last edited
18/04/2012
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Signs and Symptoms
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Not provided at time of registration

Contact information

Mrs Lillian Jespersen
Scientific

Boege Allé 10-12
Hoersholm
2970
Denmark

Study information

Study designRandomised double-blind placebo-controlled parallel-group single-centre trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital
Study typeTreatment
Participant information sheet Not available in web format, please use the contact details below to request a patient information sheet
Scientific titleRandomised, double-blind, placebo-controlled trial to evaluate the impact of a minidrink or capsule containing selected probiotic strains on the immune response following an influenza vaccination in healthy adults
Study acronymIMPRESS
Study objectivesThe study was designed to investigate the immune modulating properties of two probiotic strains in an influenza vaccination model.
Ethics approval(s)Ethical Committee of the Luigi Sacco Hospital in Milan, Italy, approved on the 19th February 2009 (ref: 72/09/101/08/AP)
Health condition(s) or problem(s) studiedGeneral immune defence
InterventionFour different treatment arms are included in the study:
1. A capsule containing Bifidobacterium animalis ssp. lactis (BB-12®) in a dosage of minimum 1 billion CFU (colony forming units)/day
2. A placebo capsule
3. A milk-based minidrink containing the probiotic strain Lactobacillus paracasei ssp. paracasei (L. casei 431®) in a dosage of minimum 1 billion CFU/day
4. A placebo minidrink

Study products to be taken orally once daily for six weeks. Ten weeks follow-up after end of supplementation phase.
Intervention typeDrug
Pharmaceutical study type(s)
PhaseNot Applicable
Drug / device / biological / vaccine name(s)Bifidobacterium animalis ssp. lactis (BB-12®), Lactobacillus paracasei ssp. paracasei (L. casei 431®)
Primary outcome measureAntigen-specific response to the influenza vaccination in plasma and saliva 4 weeks after the vaccination.
Secondary outcome measuresGeneral adaptive and innate immune responses to the influenza vaccination 4 weeks after the vaccination.
Overall study start date20/02/2009
Completion date31/08/2009

Eligibility

Participant type(s)Patient
Age groupAdult
SexBoth
Target number of participants220 subjects, 55 in each arm
Key inclusion criteria1. Healthy male and female subjects
2. Aged 20 - 60 years old
Key exclusion criteria1. Presence of acute or terminal disease
2. Gastrointestinal disorders or surgery
3. Intolerance for milk protein or lactose
4. Daily consumption of probiotic products
5. Antibiotic treatment
6. Any vaccination 15 days prior to baseline
7. Prior influenza vaccination for the 2008/2009 season
8. Already having suffered from influenza during the 2008/2009 season
Date of first enrolment20/02/2009
Date of final enrolment31/08/2009

Locations

Countries of recruitment

  • Denmark
  • Italy

Study participating centre

Boege Allé 10-12
Hoersholm
2970
Denmark

Sponsor information

Chr. Hansen A/S (Denmark)
Industry

Boege Allé 10-12
Hoersholm
2970
Denmark

Website http://www.chr-hansen.com/
ROR logo "ROR" https://ror.org/01mv6bt66

Funders

Funder type

Industry

Chr. Hansen A/S (Denmark)

No information available

Results and Publications

Intention to publish date
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
Publication and dissemination planNot provided at time of registration
IPD sharing plan

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article results 01/03/2012 Yes No