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InfluenzaFluPRO3NCT02302924

Evaluation of Psychometric Testing Properties of Severity Symptom Grading Scale of Influenza Infection: Flu-PRO Stage III

An observational study of Influenza and Influenza-like Illness, run by Henry M. Jackson Foundation for the Advancement of Military Medicine at 5 sites in United States.

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

There is no standardized method for evaluating the symptoms of influenza. A standardized instrument for measuring influenza symptoms, with appropriate scientifically derived content and construct validity would have value for public health in terms of use as a validated outcome measure in interventions to treat or… Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
Conditions the study is for
Influenza, Influenza-like Illness
How many people
535 participants
Where
5 sitesUnited States
Study dates
Sep 2014to May 2015
Phase
Observational
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 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: The targeted sample population will be recruited from the United States. Participants at the IDCRP sites will be both male and female military health care beneficiaries age 18 years and older presenting with the diagnosis of influenza or with influenza-like symptoms suggestive of infection.

Who may be able to join

  • DEERS eligible
  • Adults ≥18 years
  • Influenza or influenza-like symptoms as defined by one or more of the following:
  • Positive influenza test by PCR, culture, and/or rapid antigen testing
  • Fever with temperature ≥100.4° F [38° C] AND Respiratory Symptoms* OR
  • Subjective fever AND Respiratory Symptoms* [*Respiratory Symptoms: cough, or sputum production, or shortness of breath, or chest pain, and/or sore throat]
  • Speak and read English
  • Access to the internet through computer, laptop, tablet, or smartphone

Who cannot join

  • Individuals who do not have access to the internet by computer, laptop, tablet, or smartphone
  • Individuals with cognitive and/or physical disabilities who are unable to use a touch screen or computer mouse to enter information into an internet-based survey

Trial locations and contacts

5 sites in 1 country.

5 sites in 1 country

United States5 sites
  • Walter Reed National Military Medical Center

    Bethesda, Maryland, 20814

  • Naval Medical Center Portsmouth

    Portsmouth, Virginia, 23708

  • Brooke Army Medical Center

    San Antonio, Texas, 78234

  • Naval Medical Center San Diego

    San Diego, California, 92134

  • Madigan Army Medical Center

    Tacoma, Washington, 98431

Other trials in United States

About this study

There is no standardized method for evaluating the symptoms of influenza. A standardized instrument for measuring influenza symptoms, with appropriate scientifically derived content and construct validity would have value for public health in terms of use as a validated outcome measure in interventions to treat or prevent influenza. The instrument also could serve as part of an overall measure of severity of illness in influenza. Previous efforts in participant reported outcomes (PRO) for influenza (i.e. Flu-PRO Stage I and Stage II) focused on the elicitation and evaluation of items for inclusion in the instrument. The overarching objective of this protocol - Flu-PRO Stage III - is to conduct instrument validation to evaluate item properties and, if need be, reduce the number of items, and quantitatively validate the performance of the final measure.

Read the detailed description

The overarching purpose of this study is to develop a single, standardized measurement scale of participant influenza symptoms for use in clinical studies involving adult and pediatric participants. The development of an instrument for participant reported outcomes of influenza was composed of three stages, as described below:

Stage I. Elicitation interviews in a group of volunteers with laboratory-confirmed influenza to inform the development of the instrument, including its content and structure (item phrasing, length, response options, recall).

Stage II. Evaluative interviews with a second set of volunteers with laboratory-confirmed influenza to assess comprehension and interpretability of the instrument and draft item pool from the respondent's perspective.

Stage III. Item reduction and instrument validation in a third set of volunteers to evaluate item properties and quantitatively validate the performance of the final measure.

This protocol will describe the rationale, design, data collection procedures, and analysis methods for Stage III - Item Reduction and Instrument Validation.

Medical subject headings
Influenza, Human

What is being measured

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

  1. The purpose of Flu-PRO Stage III is to conduct a quantitative validation of the FLU-PRO instrument to assess its performance as a standardized method to evaluate symptoms of influenza in natural history studies and clinical trials.

    The study will utilize a prospective design to enroll participants with laboratory-confirmed influenza and to capture information regarding the severity of symptoms. This data will be used to validate the Flu-PRO instrument.

    Measured: 1 year

Timeline

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

  1. First posted27 Nov 2014 (estimated)
  2. Study startSep 2014
  3. Primary completionMar 2015
  4. Study completionMay 2015

Resources

More details

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

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
535 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02302924
Sponsor's protocol ID
IDCRP-081
Acronym
FluPRO3
Status last verified
Feb 2023
First submitted
24 Nov 2014
Last updated
3 Feb 2023
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

An observational study of Influenza and Influenza-like Illness, run by Henry M. Jackson Foundation for the Advancement of Military Medicine at 5 sites in United States.

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 8 inclusion and 2 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 3 Feb 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 5 sites in United States. 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.

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?

The purpose of Flu-PRO Stage III is to conduct a quantitative validation of the FLU-PRO instrument to assess its performance as a standardized method to evaluate symptoms of influenza in natural history studies and clinical trials. (time frame: 1 year). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 3 Feb 2023.

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