Can a CGM keep seafarers with diabetes safe at sea?

NCT ID NCT07251257

Recruiting now Knowledge-focused Sponsor: University of Surrey Source: ClinicalTrials.gov ↗

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study looks at whether continuous glucose monitors (CGMs) can help seafarers who need insulin manage their diabetes while working at sea. Fifty insulin-dependent seafarers will wear a CGM for 12 months and track their glucose levels during work and rest. The goal is to see if CGMs are accurate and practical enough to replace finger-prick tests, which could lead to fairer maritime rules.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance: continuous glucose monitoring (CGM) system
What this could lead to: If successful, this could show that CGMs are reliable enough for seafarers with diabetes, potentially leading to updated safety rules that allow them to work more freely at sea.
What could go wrong: This is a small, early feasibility study with only 50 participants, so results may not apply to all seafarers. The CGM accuracy in harsh sea conditions is still unproven.

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Conditions

The condition(s) this trial relates to.

type 1 diabetes mellitus

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

INSULIN DEPENDENT DIABETES

Contacts and locations

Locations

University of Surrey FHMS Nutritional Sciences
RECRUITING

Guildford, Surrey, GU2 7WG, United Kingdom

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