Study Stopped
Operational futility (i.e. near zero circulation of influenza in the community during year 2)
Test-and-treat for Influenza in Homeless Shelters
Stepped-wedge Design Study of Point-of-care Molecular Testing for Influenza and Treatment With Baloxavir for Prevention of Secondary Transmission of Influenza in Homeless Shelters in Seattle, WA
1 other identifier
interventional
1,618
1 country
9
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
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_4
Started Nov 2019
9 active sites
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
CompletedFirst Posted
Study publicly available on registry
October 28, 2019
CompletedStudy Start
First participant enrolled
November 15, 2019
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 31, 2021
CompletedStudy Completion
Last participant's last visit for all outcomes
March 31, 2021
CompletedResults Posted
Study results publicly available
June 22, 2022
CompletedJune 22, 2022
May 1, 2022
1.4 years
October 23, 2019
March 30, 2022
May 23, 2022
Conditions
Keywords
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 INTERVENTIONSubjects 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 COMPARATORSubjects 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®) .
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.
Eligibility Criteria
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
- University of Washingtonlead
- Genentech, Inc.collaborator
Study Sites (9)
Mary's Place Burien
Burien, Washington, 98146, United States
Compass Housing Alliance at First Presbyterian
Seattle, Washington, 98104, United States
Downtown Emergency Service Center Shelter
Seattle, Washington, 98104, United States
ROOTS Young Adult Shelter
Seattle, Washington, 98105, United States
Compass Housing Alliance Blaine Center Men's Shelter
Seattle, Washington, 98109, United States
Mary's Place North Seattle
Seattle, Washington, 98133, United States
St Martin De Porres Shelter
Seattle, Washington, 98134, United States
Compass Housing Alliance Jan & Peter's Place Women's Shelter
Seattle, Washington, 98144, United States
Mary's Place White Center
Seattle, Washington, 98146, United States
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: 30184455BACKGROUNDBoonyaratanakornkit 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: 31211675BACKGROUNDHwang 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: 9103130BACKGROUNDThiberville 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: 24499605BACKGROUNDCox 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.
PMID: 36276877DERIVEDChow 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.
PMID: 35749582DERIVEDRogers 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.
PMID: 34863618DERIVEDNewman 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.
PMID: 33228787DERIVEDRogers 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.
PMID: 32931328DERIVED
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
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
- PRINCIPAL INVESTIGATOR
Helen Y Chu, MD, MPH
University of Washington
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.