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Porphyria biomarker hunt could transform patient monitoring

NCT ID NCT02935400

Knowledge-focused Sponsor: The University of Texas Medical Branch, Galveston Source: ClinicalTrials.gov ↗

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing This study
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

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

Summary

This study aims to find new biological markers (biomarkers) that can show how active acute porphyria is in the body and how well treatments are working. Researchers will study 50 people with confirmed acute porphyria to measure gene activity related to heme production and stress responses. The goal is to gather early data to plan larger, more definitive studies that could improve diagnosis and care.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

About 50 people

The number the study aims to enrol. It can still change while the study runs.

Started

Apr 2014

Expected to finish

Dec 2026

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

Acute intermittent porphyria, hereditary coproporphyria, variegate porphyria.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Documented diagnosis of acute porphyria. 1. For AIP: Elevation in urine PBG, with normal or only slight increases in plasma and fecal porphyrins. Most (\~90%) will have deficient activity of erythrocyte PBGD. 2. For HCP: Elevation in urine PBG, with substantial increases in fecal porphyrins (almost entirely coproporphyrin III). In the absence of skin photosensitivity, most will have normal or only slight increases in plasma porphyrins. 3. For VP: Elevation in PBG, with substantial increases in fecal porphyrins (mostly coproporphyrin III and protoporphyrin), increased plasma total porphyrins and a fluorescence emission maximum of diluted plasma at neutral pH near 626 nm. Exclusion Criteria: * Another medical condition that might confound the results, as judged by the investigator

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Conditions

The condition(s) this trial relates to.

acute intermittent porphyria hereditary coproporphyria porphyria variegate porphyria

As listed by the trial registrant

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

Acute intermittent porphyria Hereditary coproporphyria Variegate porphyria

Contacts and locations

Locations

  • University of Texas Medical Branch

    Galveston, Texas, 77555, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.