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Diagnostics — RD Biomed Peptest

Peptest —
non-invasive reflux diagnostics

Peptest is a simple saliva test for the detection of pepsin — the biomarker for gastro-oesophageal reflux and silent aspiration. Fast, non-invasive, no endoscopy required.

5
minutes — result in under 5 min.
0
invasive procedures required
CE-certified · validated
Peptest saliva test for reflux diagnostics
Product Information
CE-certified
RD Biomed — UK
Gastroenterology & ENT
Non-invasive

Pepsin as a biomarker —
simple detection, clear conclusion

Gastro-oesophageal reflux (GERD) and silent aspiration are common conditions but can be difficult to diagnose. Conventional methods such as 24h pH-metry or endoscopy are elaborate and burdensome for the patient.

Peptest is based on the detection of pepsin in saliva — a reliable biomarker for reflux. Results are available in a few minutes, with no invasive procedures.

🔬 How it worksThe patient provides a saliva sample — pepsin, as a biomarker for gastric content in saliva, is detected. A positive result indicates reflux or aspiration. Suitable as a screening test and for therapy monitoring.
Peptest saliva sample application

Fast Result

Detection in under 5 minutes — ideal for the consultation and outpatient setting.

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Non-invasive

Just a saliva sample — no tube, no endoscopy, no sedation.

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Therapy Monitoring

Peptest is also suitable for follow-up monitoring during therapy — until when is pepsin still being detected?

Frequently Asked Questions

The patient spits a saliva sample into the test container. The lateral-flow test detects pepsin — the result can be read off in a few minutes.

Adults and children with suspected GERD, LPR (laryngopharyngeal reflux), chronic cough, hoarseness, globus sensation or silent aspiration.

Peptest is clinically validated and shows high sensitivity for reflux events. A positive result should be interpreted clinically — it is a screening test, not a definitive diagnostic proof.

Gastroenterology, ENT, pulmonology, dysphagia clinics, paediatrics — anywhere reflux or aspiration is diagnostically relevant.

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Request Samples & Product Info

We'll send you samples and all clinical information on Peptest.

Request received!

We'll get back to you personally.

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Book a Consultation

20 minutes — personally with Richard Schneider, by phone or video.

April 2026
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