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NCT03144518

Mood and Influenza Vaccine Response: A Feasibility Trial

Completed NA Results posted Last updated 15 July 2019
What this trial tests

NA trial testing Positive Affect Intervention in Vaccination; Infection in 106 participants. Completed in 31 May 2018.

Timeline
1 September 2017
Primary endpoint
1 November 2017
31 May 2018

Quick facts

Lead sponsorUniversity of Nottingham
PhaseNA
StatusCompleted
Study typeINTERVENTIONAL
Allocationrandomized
Designparallel
Maskingquadruple
Primary purposebasic science
Enrollment106
Start date1 September 2017
Primary completion1 November 2017
Estimated completion31 May 2018
Sites1 location across United Kingdom

Drugs / interventions tested

Conditions studied

Sponsor

University of Nottingham

Who can join

Adults 65 to 85, any sex, with Vaccination; Infection. Patients with the condition only — healthy volunteers not accepted.

Results — posted to ClinicalTrials.gov

Per-arm endpoint measurements with 95% confidence intervals where reported. Source: trial results section.

Mood Outcome Scores [Multiple] Primary · Baseline, Immediately Post Intervention (i.e, 15 minutes post-baseline).

Affective Slider (Betella \& Verschure, 2016), consists of two single item visual analogue scales. Scores for each are presented as a value from 0 to 100 with higher scores indicating greater pleasure (VAS-Valence) and arousal (VAS-Arousal). Positive and Negative Affect Schedule (Watson et al., 1988). Positive and negative affect subscales were created by summing the scores of positive and negative adjectives respectively. For each sub scale, minimum score = 10, maximum score = 50 with higher scores indicating greater positive and negative affect respectively. Pictorial scale of positive aff

Post-Intervention VAS-Valence
GroupValue95% CI
Experimental87.4± 15.7
Active Control79.8± 20.8
Post-Intervention VAS-Arousal
GroupValue95% CI
Experimental83.7± 16.8
Active Control79.8± 20.3
Post-Intervention Pictorial Scale
GroupValue95% CI
Experimental4.7± 1.1
Active Control4.0± 1.5
Post-Intervention PANAS Positive Affect
GroupValue95% CI
Experimental35.0± 8.4
Active Control35.0± 7.6
Post-Intervention PANAS Negative Affect
GroupValue95% CI
Experimental11.1± 3.0
Active Control11.4± 2.3
Pre-Intervention VAS-Valence
GroupValue95% CI
Experimental79.5± 19.2
Active Control80.5± 18.1
Pre-Intervention VAS-Arousal
GroupValue95% CI
Experimental79.9± 19.0
Active Control80.9± 20.1
Pre-Intervention Pictorial
GroupValue95% CI
Experimental3.7± 1.5
Active Control4.0± 1.5
Recruitment Secondary · Baseline

Recruitment rates to inform a future definitive trial

GroupValue95% CI
Whole Trial23
Whole Trial3
Whole Trial103
Whole Trial1002
Attrition Secondary · 4 weeks (post-vaccination), 16 Weeks (post-vaccination)

Attrition - to inform a future definitive trial

Attendance at 4 Week Follow-up
GroupValue95% CI
Experimental51
Active Control51
Experimental1
Active Control0
Attendance at 16 Week Follow up
GroupValue95% CI
Experimental49
Active Control48
Experimental3
Active Control3
Secretory IgA Response Secondary · Baseline, Immediately Post Intervention (i.e, 15 minutes post-baseline).

Secretory IgA levels measured in saliva samples via ELISA. This is a non-specific measure of immunological response

Pre-Intervention Flow Rate
GroupValue95% CI
Experimental81.0± 76.4
Active Control94.1± 94.2
Post-Intervention Flow Rate
GroupValue95% CI
Experimental116.7± 107.5
Active Control144.7± 142.5
Vaccine Specific IgG Response Secondary · 4 weeks (post-vaccination), 16 Weeks (post-vaccination)

IgG levels against the 4 vaccine strains measured via ELISA. Values represent equivalent ug/ml based on diluted sample absorbance value interpolation against a standard IgG curve, multiplied by the serum dilution score (i.e., 4000).

4 Weeks Post-Vaccination A/Michigan
GroupValue95% CI
Experimental243.28± 134.52
Active Control208.81± 122.42
4 Weeks Post-Vaccination A/Hong-Kind
GroupValue95% CI
Experimental301.68± 138.88
Active Control284.96± 138.64
4 Weeks Post-Vaccination B/Brisbane
GroupValue95% CI
Experimental126.30± 56.36
Active Control127.25± 63.93
4 Weeks Post-Vaccination B/Phuket
GroupValue95% CI
Experimental210.30± 123.96
Active Control229.57± 135.63
16 Weeks Post-Vaccination A/Michigan
GroupValue95% CI
Experimental221.69± 131.90
Active Control203.03± 119.41
16 Weeks Post-Vaccination A/Hong-Kong
GroupValue95% CI
Experimental283.67± 126.72
Active Control288.75± 180.18
16 Weeks Post-Vaccination B/Brisbane
GroupValue95% CI
Experimental139.49± 56.40
Active Control144.47± 76.77
16 Weeks Post-Vaccination B/Phuket
GroupValue95% CI
Experimental249.10± 124.90
Active Control271.70± 176.16
Health Care Utilization Secondary · Baseline to 6 months post-vaccination

Via medical records, we assessed health care usage potentially attributable to flu-like symptoms (e.g., GP visits, hospitalisation, antibiotic prescription) during the 6 months post-vaccination

GP Consultations
GroupValue95% CI
Experimental14
Active Control13
Nurse Consultations
GroupValue95% CI
Experimental1
Active Control1
Out of Hours/Telephone Conversations
GroupValue95% CI
Experimental7
Active Control3
Emergency Department Consultations
GroupValue95% CI
Experimental1
Active Control1
Antibiotic Prescriptions
GroupValue95% CI
Experimental6
Active Control9
Additional Investigations (e.g., Xray)
GroupValue95% CI
Experimental4
Active Control3

Sponsor's own description

This study is a 2-arm, parallel, randomised controlled feasibility trial of a brief video intervention designed to induce positive affect (mood) in older adults in primary care settings prior to the receipt of influenza vaccination. Participants will be randomised into two conditions: experimental and active control. In the experimental condition, participants will view the approximately 15 minute long intervention video immediately prior to vaccination. In the active control condition, participants will view a matched video that is designed to be mood neutral. Pre-and-post positive affect levels will be assessed by self-report questionnaires. Immune response to the intervention and vaccination responses will be assessed in saliva and serum samples respectively. The objectives of the study are to assess the impact of the intervention on mood, immune function, and antibody response to influenza vaccination in older adults. This feasibility trial will also allow data collection on exploring recruitment, attrition, intervention engagement, and practicality of collecting clinical data available through electronic records to inform the design of a future definitive trial.

Publications & conference data

No peer-reviewed publications indexed yet for this trial. Completed trials usually publish results within 12-18 months.

Verify or expand the search:

Other recruiting trials for Vaccination; Infection

Currently open trials in the same condition.

Other University of Nottingham trials

Trials by the same sponsor.

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Data sources for this page

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Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing