NCT03532438

Brief Summary

The purpose of the study is to identify the genetic closeness of NTM derived from patients living together and from their surrounding environment and to trace the temporal relationship between them.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
6

participants targeted

Target at below P25 for all trials

Timeline
Completed

Started May 2018

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

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

May 1, 2018

Completed
9 days until next milestone

First Submitted

Initial submission to the registry

May 10, 2018

Completed
12 days until next milestone

First Posted

Study publicly available on registry

May 22, 2018

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2019

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2019

Completed
Last Updated

May 22, 2018

Status Verified

May 1, 2018

Enrollment Period

1 year

First QC Date

May 10, 2018

Last Update Submit

May 10, 2018

Conditions

Outcome Measures

Primary Outcomes (1)

  • Genetic similarity of NTM(Non-Tuberculous Mycobacterium)

    Concordance of Single Nucleotide Polymorphisms (SNP) from NTMs derived from patients and their environments

    Baseline

Study Arms (1)

NTM patient group

NTM lung disease patients living together

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Among the patients visiting Seoul National University Hospital outpatient clinic, pairs of adult NTM lung disease patients who living together at the time of diagnosis were enrolled.

You may qualify if:

  • The adult over 18 years of age
  • The patient who have respiratory symptoms consistent with NTM, such as a chronic cough, sputum, and hemoptysis, who have NTM-positive findings on CT, and who have NTM identification in two or more sputum cultures or in one or more bronchoscopic/tissue culture. (2007 ATS/IDSA guideline)
  • Pairs of patients living in the same household since diagnosis on NTM lung disease
  • Consent to a collection of environmental samples from the patient's residence.

You may not qualify if:

  • If the patient does not agree or withdraw.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Division of Pulmonology and Critical Care Medicine, Department of Internal Medicine and Lung Institute of Medical Research Center, Seoul National University College of Medicine

Seoul, 110-744, South Korea

RECRUITING

Related Publications (4)

  • Bryant JM, Grogono DM, Greaves D, Foweraker J, Roddick I, Inns T, Reacher M, Haworth CS, Curran MD, Harris SR, Peacock SJ, Parkhill J, Floto RA. Whole-genome sequencing to identify transmission of Mycobacterium abscessus between patients with cystic fibrosis: a retrospective cohort study. Lancet. 2013 May 4;381(9877):1551-60. doi: 10.1016/S0140-6736(13)60632-7. Epub 2013 Mar 29.

    PMID: 23541540BACKGROUND
  • Fournier PE, Dubourg G, Raoult D. Clinical detection and characterization of bacterial pathogens in the genomics era. Genome Med. 2014 Nov 29;6(11):114. doi: 10.1186/s13073-014-0114-2. eCollection 2014.

    PMID: 25593594BACKGROUND
  • Roach DJ, Burton JN, Lee C, Stackhouse B, Butler-Wu SM, Cookson BT, Shendure J, Salipante SJ. A Year of Infection in the Intensive Care Unit: Prospective Whole Genome Sequencing of Bacterial Clinical Isolates Reveals Cryptic Transmissions and Novel Microbiota. PLoS Genet. 2015 Jul 31;11(7):e1005413. doi: 10.1371/journal.pgen.1005413. eCollection 2015 Jul.

    PMID: 26230489BACKGROUND
  • Bryant JM, Grogono DM, Rodriguez-Rincon D, Everall I, Brown KP, Moreno P, Verma D, Hill E, Drijkoningen J, Gilligan P, Esther CR, Noone PG, Giddings O, Bell SC, Thomson R, Wainwright CE, Coulter C, Pandey S, Wood ME, Stockwell RE, Ramsay KA, Sherrard LJ, Kidd TJ, Jabbour N, Johnson GR, Knibbs LD, Morawska L, Sly PD, Jones A, Bilton D, Laurenson I, Ruddy M, Bourke S, Bowler IC, Chapman SJ, Clayton A, Cullen M, Daniels T, Dempsey O, Denton M, Desai M, Drew RJ, Edenborough F, Evans J, Folb J, Humphrey H, Isalska B, Jensen-Fangel S, Jonsson B, Jones AM, Katzenstein TL, Lillebaek T, MacGregor G, Mayell S, Millar M, Modha D, Nash EF, O'Brien C, O'Brien D, Ohri C, Pao CS, Peckham D, Perrin F, Perry A, Pressler T, Prtak L, Qvist T, Robb A, Rodgers H, Schaffer K, Shafi N, van Ingen J, Walshaw M, Watson D, West N, Whitehouse J, Haworth CS, Harris SR, Ordway D, Parkhill J, Floto RA. Emergence and spread of a human-transmissible multidrug-resistant nontuberculous mycobacterium. Science. 2016 Nov 11;354(6313):751-757. doi: 10.1126/science.aaf8156.

    PMID: 27846606BACKGROUND

Biospecimen

Retention: SAMPLES WITH DNA

DNA extracts from NTM derived from the patients and their environments

MeSH Terms

Conditions

Mycobacterium Infections, Nontuberculous

Condition Hierarchy (Ancestors)

Mycobacterium InfectionsActinomycetales InfectionsGram-Positive Bacterial InfectionsBacterial InfectionsBacterial Infections and MycosesInfections

Study Officials

  • Jae-June Yim, MD

    Division of Pulmonology and Critical Care Medicine, Department of Internal Medicine and Lung Institute of Medical Research Center, Seoul National University College of Medicine

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Jae-June Yim, MD

CONTACT

Study Design

Study Type
observational
Observational Model
CASE ONLY
Time Perspective
CROSS SECTIONAL
Target Duration
1 Year
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

May 10, 2018

First Posted

May 22, 2018

Study Start

May 1, 2018

Primary Completion

May 1, 2019

Study Completion

May 1, 2019

Last Updated

May 22, 2018

Record last verified: 2018-05

Data Sharing

IPD Sharing
Will not share

Locations