NCT04492904 is a clinical trial of Home-use Test and Follow-up Questionnaire in Covid19, sponsored by Singapore Institute of Food and Biotechnology Innovation.

Who is sponsoring NCT04492904?

NCT04492904 is sponsored by Singapore Institute of Food and Biotechnology Innovation.

What drugs are being tested in NCT04492904?

Interventions in NCT04492904: Home-use Test and Follow-up Questionnaire.

Is NCT04492904 still recruiting?

NCT04492904 is currently completed. Last updated 14 December 2021.

Last reviewed 2021-12-14 · How we verify

NCT04492904

Name: Drug Landscape Pharmaceutical Database
Creator: Drug Landscape
Published: 2026-01-01
License: https://creativecommons.org/licenses/by/4.0/

Singapore COVID-19 Chemosensory Tracking (SCCT) Study

Completed Last updated 14 December 2021

What this trial tests

trial testing Home-use Test and Follow-up Questionnaire in Covid19 in 102 participants. Completed in 15 June 2021.

Timeline

17 July 2020

Primary endpoint
15 June 2021

15 June 2021

Quick facts

Lead sponsor	Singapore Institute of Food and Biotechnology Innovation
Status	Completed
Study type	OBSERVATIONAL
Enrollment	102
Start date	17 July 2020
Primary completion	15 June 2021
Estimated completion	15 June 2021
Sites	1 location across Singapore

Drugs / interventions tested

Home-use Test and Follow-up Questionnaire

Conditions studied

Covid19 — all drugs for Covid19 →

Sponsor

Singapore Institute of Food and Biotechnology Innovation

Who can join

Adults 21 to 70, any sex, with Covid19. Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

The study aims to longitudinally track the onset, severity and recovery of changes in chemosensory acuity (smell and/or taste loss) among those suspected of COVID-19 infection. Using standardised questionnaire and testing approaches, the investigators aim to objectively characterise and measure temporal changes in taste and smell to confirm the prevalence of these symptoms as an early marker of infection. Information on symptoms experience, changes in appetite and food-related quality of life will be also be assessed via questionnaire. The results of the study will help individuals who experience a loss of smell and/or taste to self-isolate and/or self-refer to a medical professional, if an association between smell and/or taste and COVID-19 infection is found.

Publications & conference data

2 peer-reviewed publications reference this trial (live from Europe PMC):

Evaluating the Onset, Severity, and Recovery of Changes to Smell and Taste Associated With COVID-19 Infection in a Singaporean Population (the COVOSMIA-19 Trial): Protocol for a Prospective Case-Control Study.
Sheen F, Tan V, Haldar S, Sengupta S, et al · · 2020 · cited 4× · PMID 33351775 · DOI 10.2196/24797
The COVOSMIA-19 trial: Preliminary application of the Singapore smell and taste test to objectively measure smell and taste function with COVID-19.
Sheen F, Tan V, Lim AJ, Haldar S, et al · · 2022 · cited 3× · PMID 34848929 · DOI 10.1016/j.foodqual.2021.104482

Verify or expand the search:

Other recruiting trials for Covid19

Currently open trials in the same condition.

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NCT04924803 — Community Developed Technology-Based Messaging to Increase COVID-19 Vaccine Uptake Among People Who Inject Drugs · NA · active not recruiting
NCT05013632 — COVID-19 International Drug Pregnancy Registry · recruiting
NCT04806061 — Urine Alkalinisation in COVID-19 · NA · active not recruiting

Other Singapore Institute of Food and Biotechnology Innovation trials

Trials by the same sponsor.

NCT07397754 — Sodium-rich COndiments Unifying Health and Taste · NA · recruiting
NCT06691126 — Pharmacokinetic Study of Terpinolene in Healthy Subjects (PKT Study) · NA · completed
NCT06421194 — Functional and Nutritional Plant-based Mixed Protein Study (FuN Protein Study) · NA · recruiting
NCT06119035 — Insulin Modelling Based on Plasma Glucose Measures Via a Minimally-Invasive Glucose Sensor · NA · completed
NCT06640335 — The Effects of Vegetable Preloading on Postprandial Glycemia, Insulinaemia and Gastric Emptying · NA · active not recruiting

Verify against primary sources

ClinicalTrials.gov — authoritative US registry record
WHO ICTRP — international registry index
EU Clinical Trials Register
Sponsor press releases (Google)

Data sources for this page

Trial protocol + status: ClinicalTrials.gov NCT04492904 (US National Library of Medicine, public domain)
Publications: Europe PMC API search by NCT ID, retrieved 10 June 2026
Drug + disease cross-links: matched in real time against Drug Landscape's normalised drug + company + condition tables
Sponsor: as reported to ClinicalTrials.gov by Singapore Institute of Food and Biotechnology Innovation
Last refreshed: 14 December 2021

Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT04492904.

Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing