NCT04688996

Brief Summary

Plague is a deadly but highly treatable disease caused by the bacterium Y. pestis. Due to the historical development of Y. pestis as a bioweapon by several nation states, it is listed by the US as a potential bioweapon that could be used against US warfighters. Although this bacterium is ecologically established worldwide, it mostly affects impoverished people who live in rural low-resource areas of Madagascar. Plague is acquired directly from bites of infected fleas but, if left untreated, it can progress to the highly lethal pneumonic form that can result in human to human transmission. With the dangers of pneumonic plague in the context of both natural outbreak and as a bioweapon used against warfighter, the goal of this study is to investigate a diagnostic test that is able to rapidly and locally diagnose this disease in low-resource settings. This study aims to evaluate a US-developed new LFI (Lateral Flow Immunoassay) assay intended for capillary blood (finger-prick) to diagnose humans infected with Y. pestis. The investigators will rigorously validate with assay on human populations from active plague sites and correlate the results with the results of paired clinical samples used in standard medical workup using existing diagnostics tests.

Trial Health

47
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
500

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Oct 2020

Typical duration for all trials

Geographic Reach
2 countries

2 active sites

Status
unknown

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 19, 2020

Completed
1 month until next milestone

First Submitted

Initial submission to the registry

November 24, 2020

Completed
1 month until next milestone

First Posted

Study publicly available on registry

December 30, 2020

Completed
1.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2022

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2023

Completed
Last Updated

December 14, 2022

Status Verified

August 1, 2022

Enrollment Period

2.1 years

First QC Date

November 24, 2020

Last Update Submit

December 12, 2022

Conditions

Keywords

Yersinia pestis Lateral Flow DeviceLateral Flow DevicePoint of Care testing, plaguePoint of Need testing, plaguePlagueYersinia pestisYersinia pestis antigensYersinia pestis LcrV antigenPlague rapid testYersinia rapid testBubonic plagueSputumBubo aspiratePneumonic plagueYersinia pestis ELISAYersinia pestis EIABlack plagueBlack deathYersinia LcrV proteinYersinia F1 antigenYersinia PCRLateral Flow Immunoassays

Outcome Measures

Primary Outcomes (1)

  • LFI results on finger-prick blood correlate with the results of standard WHO-approved diagnostic tests for plague

    Description: Standard WHO-approved diagnostic testing uses bubo aspirates or sputum as clinical matrices to perform the following tests: F1RDT, qPCR analysis, and culture. WHO defines a confirmatory positive plague case when the bubo or sputum is positive on F1RDT and positive on either qPCR or culture.

    Up to 3 weeks post sample collection and processing of each participant.

Secondary Outcomes (1)

  • LFI results on finger-prick blood correlate with LFI results from bubo aspirate or sputum clinical matrices.

    Up to 3 weeks post sample collection and processing of each participant.

Other Outcomes (1)

  • LFI results on finger-prick blood correlate with the test results on venous blood using the following diagnostic methods: LFI, qPCR, ELISA and FilmArray Warrior Panel.

    Two years through sample collection and analysis completion from 05/2020 to 05/2022.

Study Arms (2)

Malagasy Participants

Malagasy Participants. Subjects will be recruited at rural health centers throughout Madagascar. Participants will be comprised of rural people with symptoms consistent with plague. The Madagascar Ministry of Public Health requires declaration of all suspected human plague cases and collection of biological samples (sputum and/or bubo aspirates) from these cases for medical workup for confirmation.

Diagnostic Test: Lateral Flow Assay for Pathogens of the Plague

USN Health Research Center

USN Health Center Participants. The subject population will consist of active duty US Naval personnel and DoD beneficiaries presenting to participating study sites in the United States with influenza-like symptoms (fever, cough, sore throat). Since the US is non-endemic for plague, all participants will be presumed to be negative for Y. pestis.

Diagnostic Test: Lateral Flow Assay for Pathogens of the Plague

Interventions

A dipstick type of rapid test for antigens of the plague bacterium Yersinia pestis in samples from enrolled participants from both a known geography of plague activity (Madagascar) as well as samples from a geographically separated population of likely plague free status (US Naval Health Research Center, San Diego, CA).

Also known as: Lateral Flow Immunoassay for the Plague, SMART Plague Rapid Test, SMARTPRT, PRT, Plague LFI for F1 and LcrV antigens of Y. pestis, Lateral Flow Immunoassay for Yersinia pestis, LFI
Malagasy ParticipantsUSN Health Research Center

Eligibility Criteria

Age5 Years - 75 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Malagasy Participants. Subjects will be recruited at rural health centers throughout Madagascar. Participants will be comprised of rural people with symptoms consistent with plague. The Madagascar Ministry of Public Health requires declaration of all suspected human plague cases and collection of biological samples (sputum and/or bubo aspirates) from these cases for medical workup for confirmation. USN Health Center Participants. The subject population will consist of active duty US Naval personnel and DoD beneficiaries presenting to participating study sites in the United States with influenza-like symptoms (fever, cough, sore throat). Since the US is non-endemic for plague, all participants will be presumed to be negative for Y. pestis.

You may qualify if:

  • Adults 18 to 75 years old (male and female): Able to receive and give verbal communication.
  • Children 5 to 17 years old (vulnerable population): Parents or legal guardian must be available to give permission. Parents or legal guardian to consent for children (5-6 years).
  • Suspected human plague case by local medical professional. Include at least one of the following: For bubonic plague: high fever, chills, and/or presence of painful bubo; For pneumonic plague: high fever, chills, cough for less than 5 days, bloody sputum, and/or chest pains; patients may be recruited from both plague surveillance program and non-plague surveillance programs.

You may not qualify if:

  • Children under the age of 5 years old
  • Children between the age of 5 years to 17 years without a parent or legal guardian
  • Not compliant with the study procedure (blood sampling)
  • Active duty personnel and DoD beneficiaries that present to participating study sites with influenza-like-illness (fever, cough, sore throat).
  • Age range \>=13 to 75 y.o.
  • Able to receive/give consent (or assent if \<18 y.o.) 4, Presenting with influenza-like-illness (fever of 100.5 F or higher, cough and/or sore throat)
  • \. USN Special Categories: Minors/children (45CFR Subpt. D/DoDI 3216.02, Encl 3, Para 7d); Students; Active duty military personnel (3216.02, Encl.3 Para. 7.e); Economically disadvantaged persons (32CFR 219.11(b); Educationally disadvantaged persons (32CFR 219.11(b).
  • \<13 y.o.
  • Unable to give written consent (if under 18)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

US Naval Health Research Center

San Diego, California, 92101, United States

RECRUITING

Institut Pasteur de Madagascar

Antananarivo, Analamanga Region, 101, Madagascar

RECRUITING

Related Publications (6)

  • Inglesby TV, Dennis DT, Henderson DA, Bartlett JG, Ascher MS, Eitzen E, Fine AD, Friedlander AM, Hauer J, Koerner JF, Layton M, McDade J, Osterholm MT, O'Toole T, Parker G, Perl TM, Russell PK, Schoch-Spana M, Tonat K. Plague as a biological weapon: medical and public health management. Working Group on Civilian Biodefense. JAMA. 2000 May 3;283(17):2281-90. doi: 10.1001/jama.283.17.2281.

    PMID: 10807389BACKGROUND
  • International meeting on preventing and controlling plague: the old calamity still has a future. Wkly Epidemiol Rec. 2006 Jul 14;81(28):278-84. No abstract available. English, French.

    PMID: 16841399BACKGROUND
  • Chanteau S, Rahalison L, Ralafiarisoa L, Foulon J, Ratsitorahina M, Ratsifasoamanana L, Carniel E, Nato F. Development and testing of a rapid diagnostic test for bubonic and pneumonic plague. Lancet. 2003 Jan 18;361(9353):211-6. doi: 10.1016/S0140-6736(03)12270-2.

    PMID: 12547544BACKGROUND
  • Stenseth NC, Atshabar BB, Begon M, Belmain SR, Bertherat E, Carniel E, Gage KL, Leirs H, Rahalison L. Plague: past, present, and future. PLoS Med. 2008 Jan 15;5(1):e3. doi: 10.1371/journal.pmed.0050003.

    PMID: 18198939BACKGROUND
  • Andrianaivoarimanana V, Kreppel K, Elissa N, Duplantier JM, Carniel E, Rajerison M, Jambou R. Understanding the persistence of plague foci in Madagascar. PLoS Negl Trop Dis. 2013 Nov 7;7(11):e2382. doi: 10.1371/journal.pntd.0002382. eCollection 2013 Nov.

    PMID: 24244760BACKGROUND
  • Rasoamanana B, Leroy F, Boisier P, Rasolomaharo M, Buchy P, Carniel E, Chanteau S. Field evaluation of an immunoglobulin G anti-F1 enzyme-linked immunosorbent assay for serodiagnosis of human plague in Madagascar. Clin Diagn Lab Immunol. 1997 Sep;4(5):587-91. doi: 10.1128/cdli.4.5.587-591.1997.

    PMID: 9302210BACKGROUND

Related Links

Biospecimen

Retention: SAMPLES WITH DNA

Capillary Blood, Sputum, Bubo Aspirates, Venous Blood

MeSH Terms

Conditions

Plague

Condition Hierarchy (Ancestors)

Yersinia InfectionsEnterobacteriaceae InfectionsGram-Negative Bacterial InfectionsBacterial InfectionsBacterial Infections and MycosesInfectionsVector Borne Diseases

Study Officials

  • Dawn J Birdsell, Ph.D.

    Northern Arizona University

    PRINCIPAL INVESTIGATOR
  • David M Wagner, Ph.D.

    Northern Arizona University

    STUDY DIRECTOR
  • Minoarisoa Rajerison, Ph.D.

    Institut Pasteur de Madagascar

    STUDY DIRECTOR
  • Voahangy Andrianaivoarimanana, Ph.D.

    Institut Pasteur de Madagascar

    PRINCIPAL INVESTIGATOR
  • Chris Myers, Ph.D.

    Naval Health Research Center

    STUDY DIRECTOR
  • Caroline Balagout

    Naval Health Research Center

    PRINCIPAL INVESTIGATOR
  • David P Trudil

    New Horizons Diagnostics, Inc./Brimrose Biotechnology, Corp.

    STUDY CHAIR

Central Study Contacts

David P Trudil

CONTACT

Gregory R Siragusa, Ph.D.

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 24, 2020

First Posted

December 30, 2020

Study Start

October 19, 2020

Primary Completion

December 1, 2022

Study Completion

January 1, 2023

Last Updated

December 14, 2022

Record last verified: 2022-08

Data Sharing

IPD Sharing
Will not share

Locations