Could a Carb-Heavy diet tame a rare blood disorder?

NCT ID NCT06273644

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study is testing whether eating a diet rich in carbohydrates (60-65% of daily calories) can help people with acute intermittent porphyria (AIP), a rare genetic disorder that causes severe attacks of pain and other symptoms. Fifty adults with AIP will try two different diet plans for four weeks each, with a break in between. Researchers will measure changes in urine markers of disease activity, symptoms, and overall health to see if a high-carb diet offers any benefit.

What this could mean

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

Active substance
Carbohydrate-rich diet (60-65% of energy from carbs vs. 40-45%)
What this could lead to
If it works, this could point toward a simple dietary treatment to manage acute intermittent porphyria symptoms and reduce flare-ups.
What could go wrong
This is a small, early-stage trial with only 50 participants. The diet change is modest, and results may not be dramatic or apply to everyone. It's not a cure, just a potential way to control the condition.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

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

Contacts and locations

Locations

  • Nordland Hospital Trust

    RECRUITING

    Bodø, Nordland, 8092, Norway

  • Norrland University Hospital

    RECRUITING

    Umeå, Sweden

  • Studieenheten, Akademiskt Specialistcentrum, Stockholm läns sjukvårdsområde, Region Stockholm

    RECRUITING

    Stockholm, Sweden