NCT04141917

Brief Summary

This study is a stepped-wedge cluster-randomized trial of on-site rapid testing and treatment for influenza in homeless shelters within the Seattle area to determine whether this strategy reduced the incidence of influenza in the shelter environment.

Trial Health

57
Monitor

Trial Health Score

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

Enrollment
1,618

participants targeted

Target at P75+ for phase_4

Timeline
Completed

Started Nov 2019

Geographic Reach
1 country

9 active sites

Status
terminated

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

First Submitted

Initial submission to the registry

October 23, 2019

Completed
5 days until next milestone

First Posted

Study publicly available on registry

October 28, 2019

Completed
18 days until next milestone

Study Start

First participant enrolled

November 15, 2019

Completed
1.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 31, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 31, 2021

Completed
1.2 years until next milestone

Results Posted

Study results publicly available

June 22, 2022

Completed
Last Updated

June 22, 2022

Status Verified

May 1, 2022

Enrollment Period

1.4 years

First QC Date

October 23, 2019

Results QC Date

March 30, 2022

Last Update Submit

May 23, 2022

Conditions

Keywords

TamifluOseltamivirBaloxavirInfluenzaFluRapid TestXofluza

Outcome Measures

Primary Outcomes (1)

  • Number of Participants With Cases of Influenza in Shelters During the Intervention Period Compared to the Control Period

    The intervention period is when test and treatment on-site was available and the control period is when just standard surveillance was available at a shelter.

    Year 1 of the intervention (4.5 months)

Secondary Outcomes (7)

  • Feasibility of Implementation of Point-of-care Molecular Testing and Treatment of Influenza in Shelters

    Up to 24 months

  • Feasibility of Implementation of Influenza Treatment in Shelters

    Up to 24 months

  • Number of Participants That Drop Out of Study

    Up to 24 months

  • Number of Participants That Show Non-compliance With Study Drug

    Up to 24 months

  • Number of Laboratory-confirmed Influenza Cases That Report Fever

    Up to 24 months

  • +2 more secondary outcomes

Study Arms (2)

Standard influenza surveillance

NO INTERVENTION

Subjects exhibiting ≥ 2 ARI symptoms or new or worsening cough in the last 7 days at a participating shelter complete a survey collecting demographic and clinical data, and provide a mid-turbinate nasal swab for RT-PCR testing.

Point-of-care molecular testing and treatment of influenza

ACTIVE COMPARATOR

Subjects exhibiting ≥ 2 ARI symptoms, or new or worsening cough, in the last 48 hrs at a participating shelter complete a survey collecting demographic and clinical data, and provide a mid-turbinate nasal swab to be tested on-site with a molecular assay (Abbott ID NOW™ Influenza A \& B (Chicago, IL)) and receive an antiviral if tested positive (XOFLUZA™ or Tamiflu®) .

Combination Product: Point-of-care molecular testing and treatment of influenza

Interventions

Eligible individuals will be tested on site with a point-of-care molecular influenza test and, if positive, offered antiviral treatment with baloxavir for those aged ≥12 years, or oseltamivir for those aged \<12 years; pregnant; breastfeeding; liver disease; or are immunosuppressed. Follow-up nasal swabs and symptom diaries will be collected from participants 2 or 3 days after receiving the antiviral, and again 5, 6, or 7 days after receiving.

Point-of-care molecular testing and treatment of influenza

Eligibility Criteria

Age3 Months+
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Resident for 1 or more days at a participating shelter
  • ≥2 ARI symptoms or acute cough alone
  • Willing to take study medication
  • Willing to comply with all study procedures, including weekly surveillance and repeat nasal swab at day 2/3 and day 5/6/7 post-treatment
  • Able to provide written, informed consent and/or assent

You may not qualify if:

  • Any serious or uncontrolled medical disorder or active infection that, in the opinion of the investigator, may increase the risk associated with study participation or study drug administration
  • Inability to consent and/or comply with study protocol
  • Individuals who have received oseltamivir or baloxavir within past 7 days for treatment of influenza
  • Individuals with known hypersensitivity to baloxavir marboxil or oseltamivir
  • Individuals with chronic kidney disease

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (9)

Mary's Place Burien

Burien, Washington, 98146, United States

Location

Compass Housing Alliance at First Presbyterian

Seattle, Washington, 98104, United States

Location

Downtown Emergency Service Center Shelter

Seattle, Washington, 98104, United States

Location

ROOTS Young Adult Shelter

Seattle, Washington, 98105, United States

Location

Compass Housing Alliance Blaine Center Men's Shelter

Seattle, Washington, 98109, United States

Location

Mary's Place North Seattle

Seattle, Washington, 98133, United States

Location

St Martin De Porres Shelter

Seattle, Washington, 98134, United States

Location

Compass Housing Alliance Jan & Peter's Place Women's Shelter

Seattle, Washington, 98144, United States

Location

Mary's Place White Center

Seattle, Washington, 98146, United States

Location

Related Publications (9)

  • Hayden FG, Sugaya N, Hirotsu N, Lee N, de Jong MD, Hurt AC, Ishida T, Sekino H, Yamada K, Portsmouth S, Kawaguchi K, Shishido T, Arai M, Tsuchiya K, Uehara T, Watanabe A; Baloxavir Marboxil Investigators Group. Baloxavir Marboxil for Uncomplicated Influenza in Adults and Adolescents. N Engl J Med. 2018 Sep 6;379(10):913-923. doi: 10.1056/NEJMoa1716197.

    PMID: 30184455BACKGROUND
  • Boonyaratanakornkit J, Ekici S, Magaret A, Gustafson K, Scott E, Haglund M, Kuypers J, Pergamit R, Lynch J, Chu HY. Respiratory Syncytial Virus Infection in Homeless Populations, Washington, USA. Emerg Infect Dis. 2019 Jul;25(7):1408-1411. doi: 10.3201/eid2507.181261.

    PMID: 31211675BACKGROUND
  • Hwang SW, Orav EJ, O'Connell JJ, Lebow JM, Brennan TA. Causes of death in homeless adults in Boston. Ann Intern Med. 1997 Apr 15;126(8):625-8. doi: 10.7326/0003-4819-126-8-199704150-00007.

    PMID: 9103130BACKGROUND
  • Thiberville SD, Salez N, Benkouiten S, Badiaga S, Charrel R, Brouqui P. Respiratory viruses within homeless shelters in Marseille, France. BMC Res Notes. 2014 Feb 5;7:81. doi: 10.1186/1756-0500-7-81.

    PMID: 24499605BACKGROUND
  • Cox SN, Rogers JH, Thuo NB, Meehan A, Link AC, Lo NK, Manns BJ, Chow EJ, Al Achkar M, Hughes JP, Rolfes MA, Mosites E, Chu HY. Trends and factors associated with change in COVID-19 vaccination intent among residents and staff in six Seattle homeless shelters, March 2020 to August 2021. Vaccine X. 2022 Dec;12:100232. doi: 10.1016/j.jvacx.2022.100232. Epub 2022 Oct 19.

  • Chow EJ, Casto AM, Roychoudhury P, Han PD, Xie H, Pfau B, Nguyen TV, Sereewit J, Rogers JH, Cox SN, Wolf CR, Rolfes MA, Mosites E, Uyeki TM, Greninger AL, Hughes JP, Shim MM, Sugg N, Duchin JS, Starita LM, Englund JA, Chu HY. The Clinical and Genomic Epidemiology of Rhinovirus in Homeless Shelters-King County, Washington. J Infect Dis. 2022 Oct 7;226(Suppl 3):S304-S314. doi: 10.1093/infdis/jiac239.

  • Rogers JH, Cox SN, Hughes JP, Link AC, Chow EJ, Fosse I, Lukoff M, Shim MM, Uyeki TM, Ogokeh C, Jackson ML, Boeckh M, Englund JA, Mosites E, Rolfes MA, Chu HY. Trends in COVID-19 vaccination intent and factors associated with deliberation and reluctance among adult homeless shelter residents and staff, 1 November 2020 to 28 February 2021 - King County, Washington. Vaccine. 2022 Jan 3;40(1):122-132. doi: 10.1016/j.vaccine.2021.11.026. Epub 2021 Nov 15.

  • Newman KL, Rogers JH, McCulloch D, Wilcox N, Englund JA, Boeckh M, Uyeki TM, Jackson ML, Starita L, Hughes JP, Chu HY; Seattle Flu Study Investigators. Point-of-care molecular testing and antiviral treatment of influenza in residents of homeless shelters in Seattle, WA: study protocol for a stepped-wedge cluster-randomized controlled trial. Trials. 2020 Nov 23;21(1):956. doi: 10.1186/s13063-020-04871-5.

  • Rogers JH, Link AC, McCulloch D, Brandstetter E, Newman KL, Jackson ML, Hughes JP, Englund JA, Boeckh M, Sugg N, Ilcisin M, Sibley TR, Fay K, Lee J, Han P, Truong M, Richardson M, Nickerson DA, Starita LM, Bedford T, Chu HY; Seattle Flu Study Investigators. Characteristics of COVID-19 in Homeless Shelters : A Community-Based Surveillance Study. Ann Intern Med. 2021 Jan;174(1):42-49. doi: 10.7326/M20-3799. Epub 2020 Sep 15.

MeSH Terms

Conditions

Influenza, Human

Condition Hierarchy (Ancestors)

Respiratory Tract InfectionsInfectionsOrthomyxoviridae InfectionsRNA Virus InfectionsVirus DiseasesRespiratory Tract Diseases

Limitations and Caveats

Decline in influenza activity following the advent of SARS-CoV-2 public health mitigation measures led to early termination of study for operational futility purposes. Low infection detection and study power after year 1 also limited our ability to conduct statistical analyses on several intended secondary outcomes.

Results Point of Contact

Title
Dr. Helen Chu
Organization
University of Washington

Study Officials

  • Helen Y Chu, MD, MPH

    University of Washington

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
NONE
Purpose
PREVENTION
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Professor, School of Medicine: Division of Allergy & Infectious Diseases

Study Record Dates

First Submitted

October 23, 2019

First Posted

October 28, 2019

Study Start

November 15, 2019

Primary Completion

March 31, 2021

Study Completion

March 31, 2021

Last Updated

June 22, 2022

Results First Posted

June 22, 2022

Record last verified: 2022-05

Data Sharing

IPD Sharing
Will not share

We do not currently expect to share specimens with outside investigators, but if compelling opportunities arise that will advance the overall objectives of this research, the Executive Committee of the study will consider such requests. They alone have the authority to make such decisions. All biospecimens (nasal swabs) will be coded and identifiable through the study's main database. Any specimens shared with external investigators (if deemed appropriate by the Executive Committee) will have identifiers removed prior to sharing.

Locations