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CompletedNCT06027398Updated Nov 15, 2024

SARS-COV-2 Detection From Used Surgical Mask

An interventional study of SARS-CoV-2 RNA detection in SARS-CoV-2 Virus, sponsored by Bangkok Metropolitan Administration Medical College and Vajira Hospital. Completed at 1 site in Thailand. Open to participants aged Up to 80 Years. Per ClinicalTrials.gov, last updated 2024-11-15.

Sponsored by Bangkok Metropolitan Administration Medical College and Vajira Hospital · Not applicable, Interventional, and Diagnostic

From the registry’s dates

  • Registered 2 years 3 months after the study started (first participant enrolled May 2021, registered Aug 2023).
Phase
Not applicable
Study type
Interventional
Enrollment
269
Allocation
Not applicable
Ages
Up to 80 Years
Sex
All
01

Study summary

The real-time reverse transcription-polymerase chain reaction (RT-PCR) test is regarded as the gold standard for SARS-CoV-2 detection. Proper specimen collection and obtaining a sufficient sample are the most important steps for laboratory diagnosis. The nasopharyngeal (NP) swab is recommended as the reference collection method. However, NP swab collection is invasive and uncomfortable for patients and poses some risk to healthcare workers. This study aimed to compare the efficacy of SARS-CoV-2 RNA detection from used surgical masks with the NP swab method using RT-PCR testing

Read the detailed description

Proper specimen collection and obtaining sufficient samples are the most important steps for laboratory diagnosis of an infectious disease. Improper collection may lead to false or inconclusive test results. During the early stages of the COVID-19 outbreak, the Center for Disease Prevention and Control recommended collecting and testing an upper respiratory specimen [4]. Nasopharyngeal (NP) and oropharyngeal (OP) swabs are the preferred choice for initial SARS-CoV-2 diagnostic testing.

This study aimed to compare the efficacy of SARS-CoV-2 RNA detection from used surgical masks with standard detection methods. We tested for SARS-CoV-2 RNA in masks from patients with COVID-19 that had been worn for eight hours and compared this with NP swabs using RT-PCR testing. Hospitalized patients with laboratory-confirmed COVID-19 were recruited to provide surgical masks. Collection of used surgical mask samples by patients themselves is easy, convenient, requires no sampling equipment and decreases the risk of healthcare personnel exposure to COVID-19. If SARS-CoV-2 RNA can be detected on used surgical mask samples, this may encourage patients to provide specimens for testing and help in early detection and transmission prevention. As an alternative method to NP swabs, it may facilitate timely diagnosis and treatment.

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Conditions studied

  • SARS-CoV-2 Virus

Keywords

  • Nasopharyngeal swab
  • RT-PCR
  • SARS-CoV-2
  • surgical mask
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In context

Lead sponsor

Bangkok Metropolitan Administration Medical College and Vajira Hospital is the lead sponsor of 23 studies on the registry; 1 is open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
Up to 80 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Newly confirmed SARS-CoV-2 positive cases admitted to a field hospital within 48 hours or outpatient with a positive result for SARS-CoV-2
  • Should be able to wear a mask for 8 h according to the protocol

Exclusion criteria

Exclusion Criteria:

  • require oxygen intubation or any breathing support devices
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Study design

Phase
Not applicable
Primary purpose
Diagnostic
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
269 participants (actual)

Study arms

  • Experimental
    SARS-CoV-2 RNA in masks

    . After the participants had worn the masks for 8 h, the nurse collected the filters and placed each into a viral transport medium (VTM) tube This was placed inside a clean plastic bag, sprayed with alcohol, placed in an icebox and sent to the biomolecular laboratory for real-time RT-PCR SARS-CoV-2 testing.

    Diagnostic Test: SARS-CoV-2 RNA detection

Interventions

  • Diagnostic testSARS-CoV-2 RNA detection

    SARS-CoV-2 RNA detection in used mask filters

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What researchers measure

Primary outcomes

  1. the efficacy of SARS-CoV-2 RNA detection from used surgical masks

    tested for SARS-CoV-2 RNA in masks from patients with COVID-19 that had been worn for eight hours and compared this with NP swabs using RT-PCR testing

    Time frame: 3 months

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Study locations

1 site
  • 2 Division of Nephrology,Department of Medicine Pramongkutklao Hospital and College of Medicine,Thailand
    Bangkok, 10400, Thailand
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References and documents

Publications

  • Wu F, Zhao S, Yu B, Chen YM, Wang W, Song ZG, Hu Y, Tao ZW, Tian JH, Pei YY, Yuan ML, Zhang YL, Dai FH, Liu Y, Wang QM, Zheng JJ, Xu L, Holmes EC, Zhang YZ. A new coronavirus associated with human respiratory disease in China. Nature. 2020 Mar;579(7798):265-269. doi: 10.1038/s41586-020-2008-3. Epub 2020 Feb 3. Erratum In: Nature. 2020 Apr;580(7803):E7. doi: 10.1038/s41586-020-2202-3. PubMed 32015508 ↗
  • Gao Q, Bao L, Mao H, Wang L, Xu K, Yang M, Li Y, Zhu L, Wang N, Lv Z, Gao H, Ge X, Kan B, Hu Y, Liu J, Cai F, Jiang D, Yin Y, Qin C, Li J, Gong X, Lou X, Shi W, Wu D, Zhang H, Zhu L, Deng W, Li Y, Lu J, Li C, Wang X, Yin W, Zhang Y, Qin C. Development of an inactivated vaccine candidate for SARS-CoV-2. Science. 2020 Jul 3;369(6499):77-81. doi: 10.1126/science.abc1932. Epub 2020 May 6. PubMed 32376603 ↗
  • Qian Y, Zeng T, Wang H, Xu M, Chen J, Hu N, Chen D, Liu Y. Safety management of nasopharyngeal specimen collection from suspected cases of coronavirus disease 2019. Int J Nurs Sci. 2020 Apr 4;7(2):153-156. doi: 10.1016/j.ijnss.2020.03.012. eCollection 2020 Apr 10. PubMed 32292635 ↗
  • Comber L, Walsh KA, Jordan K, O'Brien KK, Clyne B, Teljeur C, Drummond L, Carty PG, De Gascun CF, Smith SM, Harrington P, Ryan M, O'Neill M. Alternative clinical specimens for the detection of SARS-CoV-2: A rapid review. Rev Med Virol. 2021 Jul;31(4):e2185. doi: 10.1002/rmv.2185. Epub 2020 Oct 22. PubMed 33091200 ↗

Individual participant data

Plan to share: Yes — The data underlying this article are available in figshare 10.6084/m9.figshare.24064218

Supporting information: Statistical analysis plan

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 15, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT06027398
Lead sponsor
Bangkok Metropolitan Administration Medical College and Vajira Hospital
Responsible party
Thananda Trakarnvanich (Associate Professor, Bangkok Metropolitan Administration Medical College and Vajira Hospital) — Principal investigator
First posted
Sep 7, 2023
Start date
May 1, 2021
Primary completion
Aug 31, 2021
Completion
Sep 30, 2021
Last update
Nov 15, 2024

Study contacts

Thananda Trakarnvanich, M.D.
principal investigator · Navamindradhiraj University

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Nov 2024. You cannot join it, but the record below documents what was studied.

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