NCT01003288

Brief Summary

Haukeland University Hospital has approximately 8000 employees many of whom will be in the front line to receive the pandemic A/H1N1 vaccine. We propose to conduct a safety and immunogenicity study in these subjects

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
255

participants targeted

Target at P75+ for not_applicable healthy

Timeline
Completed

Started Oct 2009

Longer than P75 for not_applicable healthy

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

October 1, 2009

Completed
26 days until next milestone

First Submitted

Initial submission to the registry

October 27, 2009

Completed
1 day until next milestone

First Posted

Study publicly available on registry

October 28, 2009

Completed
2 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2010

Completed
4.9 years until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2014

Completed
1.7 years until next milestone

Results Posted

Study results publicly available

August 24, 2016

Completed
Last Updated

November 18, 2019

Status Verified

November 1, 2019

Enrollment Period

3 months

First QC Date

October 27, 2009

Results QC Date

June 6, 2015

Last Update Submit

November 1, 2019

Conditions

Keywords

H1N1 pandemic vaccine immunogenicity safetyHealth employees

Outcome Measures

Primary Outcomes (1)

  • Number of Participants With Local and Systemic Adverse Events

    Solicited adverse events were collected on side reactions form which were filled in for 21 days after pandemic or seasonal vaccination.

    21 days after vaccination

Secondary Outcomes (1)

  • Number of Participants With Immunogenicity as Determined Using Haemagglutination Inhibition Assay

    7, 14, 21 days post vaccination and long term follow up for 5 years

Study Arms (1)

Pandemic influenza H1N1 vaccine

EXPERIMENTAL

Influenza vaccine

Biological: Adjuvanted influenza H1N1split virion vaccine

Interventions

Vaccination Pandemrix suspension and emulsion for emulsion for injection. 1 dose (0.5 ml) contains Split influenza virus, inactivated, containing antigen 3.75 micrograms of A/California/7/2009 (H1N1)v-like strain (X-179A) \* Pandemic influenza vaccine (H1N1)v (split virion, inactivated, adjuvanted)

Also known as: Pandemrix
Pandemic influenza H1N1 vaccine

Eligibility Criteria

Age19 Years - 70 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Signed informed consent Subjects able to understand and comply with the study protocol and complete the Adverse Event Form Subjects able to attend the scheduled visits for the kinetic study

You may not qualify if:

  • Persons with a history of anaphylaxis or serious reactions to any vaccine
  • Person with known hypersensitivity to any of the vaccine components
  • Persons who have had a temperature \>38oC during the previous 72 hours
  • Persons who have had an acute respiratory infection during the last 7 days
  • Suspected non-compliance

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Haukeland University Hospital

Bergen, N5021, Norway

Location

Related Publications (11)

  • Madhun AS, Akselsen PE, Sjursen H, Pedersen G, Svindland S, Nostbakken JK, Nilsen M, Mohn K, Jul-Larsen A, Smith I, Major D, Wood J, Cox RJ. An adjuvanted pandemic influenza H1N1 vaccine provides early and long term protection in health care workers. Vaccine. 2010 Dec 16;29(2):266-73. doi: 10.1016/j.vaccine.2010.10.038. Epub 2010 Oct 27.

  • Pedersen G, Halstensen A, Sjursen H, Naess A, Kristoffersen EK, Cox RJ. Pandemic influenza vaccination elicits influenza-specific CD4+ Th1-cell responses in hypogammaglobulinaemic patients: four case reports. Scand J Immunol. 2011 Aug;74(2):210-8. doi: 10.1111/j.1365-3083.2011.02561.x.

  • Jul-Larsen A, Madhun AS, Brokstad KA, Montomoli E, Yusibov V, Cox RJ. The human potential of a recombinant pandemic influenza vaccine produced in tobacco plants. Hum Vaccin Immunother. 2012 May;8(5):653-61. doi: 10.4161/hv.19503. Epub 2012 May 1.

  • Pathirana RD, Bredholt G, Akselsen PE, Pedersen GK, Cox RJ. A(H1N1)pdm09 vaccination of health care workers: improved immune responses in low responders following revaccination. J Infect Dis. 2012 Dec 1;206(11):1660-9. doi: 10.1093/infdis/jis589. Epub 2012 Sep 11.

  • Lartey S, Pathirana RD, Zhou F, Jul-Larsen A, Montomoli E, Wood J, Cox RJ. Single dose vaccination of the ASO3-adjuvanted A(H1N1)pdm09 monovalent vaccine in health care workers elicits homologous and cross-reactive cellular and humoral responses to H1N1 strains. Hum Vaccin Immunother. 2015;11(7):1654-62. doi: 10.1080/21645515.2015.1048939.

  • Eidem S, Tete SM, Jul-Larsen A, Hoschler K, Montomoli E, Brokstad KA, Cox RJ. Persistence and avidity maturation of antibodies to A(H1N1)pdm09 in healthcare workers following repeated annual vaccinations. Vaccine. 2015 Aug 7;33(33):4146-54. doi: 10.1016/j.vaccine.2015.05.081. Epub 2015 Jun 7.

  • Trieu MC, Zhou F, Lartey SL, Sridhar S, Mjaaland S, Cox RJ. Augmented CD4+ T-cell and humoral responses after repeated annual influenza vaccination with the same vaccine component A/H1N1pdm09 over 5 years. NPJ Vaccines. 2018 Aug 14;3:37. doi: 10.1038/s41541-018-0069-1. eCollection 2018.

  • Trieu MC, Zhou F, Lartey S, Jul-Larsen A, Mjaaland S, Sridhar S, Cox RJ. Long-term Maintenance of the Influenza-Specific Cross-Reactive Memory CD4+ T-Cell Responses Following Repeated Annual Influenza Vaccination. J Infect Dis. 2017 Mar 1;215(5):740-749. doi: 10.1093/infdis/jiw619.

  • Trieu MC, Jul-Larsen A, Saevik M, Madsen A, Nostbakken JK, Zhou F, Skrede S, Cox RJ. Antibody Responses to Influenza A/H1N1pdm09 Virus After Pandemic and Seasonal Influenza Vaccination in Healthcare Workers: A 5-Year Follow-up Study. Clin Infect Dis. 2019 Jan 18;68(3):382-392. doi: 10.1093/cid/ciy487.

  • Amdam H, Madsen A, Zhou F, Bansal A, Trieu MC, Cox RJ. Functional and Binding H1N1pdm09-Specific Antibody Responses in Occasionally and Repeatedly Vaccinated Healthcare Workers: A Five-Year Study (2009-2014). Front Immunol. 2021 Dec 6;12:748281. doi: 10.3389/fimmu.2021.748281. eCollection 2021.

  • Manenti A, Tete SM, Mohn KG, Jul-Larsen A, Gianchecchi E, Montomoli E, Brokstad KA, Cox RJ. Comparative analysis of influenza A(H3N2) virus hemagglutinin specific IgG subclass and IgA responses in children and adults after influenza vaccination. Vaccine. 2017 Jan 3;35(1):191-198. doi: 10.1016/j.vaccine.2016.10.024. Epub 2016 Oct 24.

MeSH Terms

Interventions

pandemrix

Results Point of Contact

Title
Professor Rebecca Cox
Organization
University of Bergen

Study Officials

  • Per Espen Akselsen, MD

    Haukeland University Hospital

    STUDY CHAIR
  • Haakon Sjursen, MD PhD

    Haukeland University Hospital

    STUDY CHAIR

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
PREVENTION
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

October 27, 2009

First Posted

October 28, 2009

Study Start

October 1, 2009

Primary Completion

January 1, 2010

Study Completion

December 1, 2014

Last Updated

November 18, 2019

Results First Posted

August 24, 2016

Record last verified: 2019-11

Locations