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NCT00004398
NCT00004398
Who may be able to join
Who might be able to join this trial:
- You have been diagnosed with acute intermittent porphyria, variegate porphyria, or hereditary coproporphyria
- Your symptoms are recent and have not been present for longer than 2 weeks
- It has been at least 3 weeks since you last received treatment with heme arginate or tin mesoporphyrin
- A urine test shows your porphobilinogen levels are high enough (at least 40 mg over 24 hours)
Who may not be able to join:
- You are pregnant
- You are a woman who could become pregnant and are not willing to use effective birth control during the study and for 6 months beforehand
- Your symptoms appear to be caused by a different illness rather than porphyria
- You have an active bleeding condition, such as bleeding in the digestive tract or bleeding in the brain
- You have a known allergy or sensitivity to heme preparations or tin mesoporphyrin
- You have another medical condition that could put you at greater risk during the trial (confirm with trial site)
Important: Always verify eligibility with the trial site directly before applying.
Based on publicly available eligibility criteria from ClinicalTrials.gov. Verify directly with the trial site before acting. This is not medical advice.
Phase 1: approximately ~10% of drugs entering this phase reach regulatory approval, based on published industry-wide historical data. This is not specific to this trial.
Trial details
Status
Completed
Phase
Phase 1
Sponsor
National Center for Research Resources (NCRR)
Registry
clinicaltrials_gov
Start date
1 January 1998
Can't join this trial?
Data last synced from ClinicalTrials.gov: 30 June 2026. Trial status can change. Always verify current status directly with the trial site before making any decision.