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NCT00004396 · ClinicalTrials.gov registry record · Phase 2

Studies in Porphyria III: Heme and Tin Mesoporphyrin in Acute Porphyrias

A Phase 2 study, sponsored by National Center for Research Resources (NCRR).

Completed
Registry status
Phase 2
Development phase
32
Enrollment target

NCT00004396: Completed Phase 2 study, sponsored by National Center for Research Resources (NCRR).

NCT00004396 is a Phase 2 study that has completed, run by National Center for Research Resources (NCRR). The registered enrollment target is 32 participants, below the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (76% lower). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT00004396, a Phase 2 study, has completed, sponsored by National Center for Research Resources (NCRR).

COMPLETED
Registry status
Phase 2
Development phase
32 participants
Enrollment target

Study Summary

OBJECTIVES: I. Compare the efficacy of heme arginate, singly or in combination with tin mesoporphyrin, in lowering porphyrin precursors in patients with asymptomatic acute intermittent porphyria. II. Evaluate and compare the safety and tolerability of these treatment regimens in this patient population.

Interventions

  • DRUG tin mesoporphyrin
  • DRUG heme arginate

Trial Details

FieldValue
Enrollment Target 32 participants
Start Date 1997-09
Phase Phase 2

What the finished NCT00004396 record still lists

NCT00004396 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 32 participants, a relatively small participant target, below the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (76% lower).

The record links to 0 conditions, and to 2 interventions - of which tin mesoporphyrin is the first listed.

NCT00004396 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT00004396 about?

NCT00004396 is a clinical study titled "Studies in Porphyria III: Heme and Tin Mesoporphyrin in Acute Porphyrias". OBJECTIVES: I. Compare the efficacy of heme arginate, singly or in combination with tin mesoporphyrin, in lowering porphyrin precursors in patients with asymptomatic acute intermittent porphyria. II. Evaluate and compare the safety and tolerability of these treatment regimens in this patient popula...

What is the current status of trial NCT00004396?

This trial is currently completed. It is a Phase 2 study. The enrollment target is 32 participants. The study started on 1997-09.

What interventions are being tested in trial NCT00004396?

The interventions under investigation include: tin mesoporphyrin (DRUG), heme arginate (DRUG).

Who is sponsoring clinical trial NCT00004396?

This trial is sponsored by National Center for Research Resources (NCRR), which has 94 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT00004396's enrollment target sits among peer trials

32 1563rd of 2000 higher than 423 of 2,000 other Phase 2 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 2 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

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Source: ClinicalTrials.gov NCT00004396, the US trial registry maintained by the National Library of Medicine. NCT00004396 (small enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.