PheCheck Validation Study, PKU Detection, Apr 27
Summary
The PheCheck™ Validation Study (NCT07551921) is an observational clinical trial evaluating the performance of the PheCheck™ rapid test for detecting phenylalanine (Phe) from a fingerstick sample in patients aged 1 year or older diagnosed with phenylketonuria (PKU) or hyperphenylalaninemia. The study's primary objective is to compare phenylalanine concentration measurements in capillary blood against the reference dried blood spot (DBS) method. No compliance obligations or regulatory deadlines are associated with this clinical trial registration entry.
“The goal of this observational study is to evaluate the performance of the PheCheck™ test for the rapid detection of phenylalanine (Phe) from a fingerstick sample, in patients 1 year or older with phenylketonuria (PKU) or hyperphenylalaninemia.”
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What changed
This ClinicalTrials.gov registry entry documents the registration of an observational study to validate the PheCheck™ rapid test for phenylalanine detection in PKU and hyperphenylalaninemia patients. The study will assess diagnostic accuracy of fingerstick capillary blood sampling compared to the established dried blood spot (DBS) reference method.
Affected parties—clinical researchers, diagnostic manufacturers, and metabolic disorder treatment facilities—should note this study evaluates a novel rapid testing approach that could simplify PKU monitoring outside laboratory settings. The study represents standard clinical research registration activity and does not impose immediate compliance obligations on healthcare providers or manufacturers.
Archived snapshot
Apr 27, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
PheCheck™ Validation Study
Observational NCT07551921 Kind: OBSERVATIONAL Apr 27, 2026
Abstract
The goal of this observational study is to evaluate the performance of the PheCheck™ test for the rapid detection of phenylalanine (Phe) from a fingerstick sample, in patients 1 year or older with phenylketonuria (PKU) or hyperphenylalaninemia. The main objective is comparing the concentration of phenylalanine (Phe) in capillary blood with the reference method (DBS).
Conditions: Phenylketonuria (PKU) and Hyperphenylalaninemia
Interventions: PheCheck, Dried Blood Spot Cards.
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