An observational study in COVID-19, Influenza A and Influenza Type B, sponsored by LumiraDx UK Limited. Completed at 8 sites in United States. Per ClinicalTrials.gov, last updated 2026-06-15.
Sponsored by LumiraDx UK Limited · Observational
A Multicenter Study Conducted to Evaluate the Performance of the LumiraDx SARS-CoV-2 \& FLU A/B Test, and LumiraDx SARS-CoV-2 \& RSV Test at Point of Care Testing Sites. Subjects presenting with symptoms suggestive of COVID-19 and/or Influenza and/or RSV will be consented and asked to donate swab sample(s) for testing in the device(s) under evaluation.
Approximately one-thousand (1000) subjects will be enrolled in this study. Patients presenting to their health care professionals, drive through testing sites or research centers and meet the inclusion/exclusion criteria will be enrolled in the study.
A subject's participation in this study will consist of a single visit. Following completion of the informed consent process and a review of Inclusion/Exclusion criteria to determine eligibility, each subject will receive a unique study identification number.
The potential subject will be asked to provide relevant medical history information (i.e., regarding their influenza/RSV and or COVID-19-like symptoms), which will be evaluated against all inclusion and exclusion criteria depending in their cohort. A subject's SARS-CoV-2 vaccination status will also be collected including the doses, dates of vaccination and brand.
Specimens will be obtained from each subject enrolled using standard collection methods.
The objectives of this study are to:
7,641 studies on the registry are indexed under COVID-19; 487 are open to participants now.
This study's enrollment of 589 is above the median of 261 across 3,136 observational studies indexed under COVID-19.
Browse COVID-19 studies →LumiraDx UK Limited is the lead sponsor of 17 studies on the registry; 2 are open to participants now.
Counted across the registry records on this site, refreshed daily.
The subject may be of any age and either sex. Subjects must qualify for either the COVID-19 or Influenza/RSV cohort based on strict clinical timelines. The COVID cohort requires characteristic symptoms starting within the last 12 days, or respiratory symptoms with a positive SARS-CoV-2 test from the past 48 hours. Alternatively, the Influenza/RSV cohort requires a recent fever of 100.0°F or higher alongside at least two systemic symptoms starting within the last 4 days. Finally, individuals can also qualify for the Influenza/RSV branch if they present with respiratory symptoms and a documented positive Flu or RSV test from the preceding 48 hours.
The subject must present in one of the following two cohorts:
Covid Cohort:
Preliminary assessment of the subject by the Investigator/designee should be suggestive of COVID-19 at the time of the study visit. The subject must present as symptomatic, meaning they have exhibited one or more of the following signs and symptoms for eligibility: fever, cough, shortness of breath, difficulty breathing, muscle pain, headache, sore throat, chills, repeated shaking with chills, new loss of taste or smell, congestion or runny nose, diarrhea, nausea or vomiting. The onset of these symptoms will be recorded and will be in the last twelve (12) days.
or The subject must have presented with respiratory symptoms and a documented positive SARS-CoV-2 PCR or antigen test in the past forty-eight (48) hours.
Influenza/RSV Cohort:
The subject must have a fever of 100.0 °F or greater with the onset of the fever being within the past three (3) days and/or present at the time of the visit. Fever can be reported or taken at time of visit. Subjects must report having a fever, but a quantitative reported measurement is not necessary for inclusion. In addition to the fever, the subject must have two (2) or more of the following signs and symptoms for eligibility: cough, shortness of breath, difficulty breathing, muscle pain, joint pain, headache, chills, repeated shaking with chills, congestion or runny nose, diarrhea, nausea, vomiting, sneezing, sore throat, wheezing, fatigue, weakness and/or malaise or anorexia. The onset of these symptoms will be recorded and will be in the last four (4) days. OR The subject must have presented with respiratory symptoms and a documented positive Flu or RSV test in the past forty-eight (48) hours.
Exclusion Criteria:
Nasal swab from subjects with signs and symptoms of COVID-19 and/or Influenza and/or RSV-like illness
Diagnostic Test: LumiraDx SARS-CoV-2 & Flu A/B test · Diagnostic Test: LumiraDx SARS-CoV-2 & RSV test
Nasopharyngeal swab from subjects with signs and symptoms of COVID-19 and/or Influenza and/or RSV-like illness
Diagnostic Test: LumiraDx SARS-CoV-2 & Flu A/B test · Diagnostic Test: LumiraDx SARS-CoV-2 & RSV test
Swab Samples for Diagnostic test
Swab Samples for Diagnostic test
Performance evaluation by health care professionals
Evaluate the performance of the LumiraDx Tests in detecting and differentiating SARS-CoV-2, influenza A, influenza B and/or RSV in fresh nasal or nasopharyngeal swab specimens from patients with signs and symptoms of COVID-19, Influenza and/or RSV-like illness. Performance will be evaluated by use of statistical analysis techniques to assess sensitivity (true positive rate), specificity (true negative rate), Negative and Positive Percent Agreement (NPA, PPA) of the LumiraDx test results versus an FDA-approved method where a result of 100% sensitivity, specificity, NPA or PPA would equate to complete agreement with the reference method and 0% would equate to no agreement.
Time frame: 4 months
Point of Care usability
Evaluate the point of care usability of the LumiraDx SARS-CoV-2 \& Flu A/B Test and LumiraDx SARS-CoV-2 \& RSV Tests. Usability will be assessed by means of a user questionnaire to be completed by naive users following their first test of the devices using standard Pack Leaflet and Quick Reference Instructions.
Time frame: 4 months
Plan to share: No
No publications or documents are linked to this record.
This study is completed, as verified in Jun 2026. You cannot join it, but the record below documents what was studied.
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LumiraDx UK Limited