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NCT00648167 · ClinicalTrials.gov registry record · Phase 2

A Safety and Tolerability Study of Zerenex (Ferric Citrate) in Patients With End-Stage Renal Disease (ESRD)

A Phase 2 study, sponsored by Keryx Biopharmaceuticals.

Completed
Registry status
Phase 2
Development phase
55
Enrollment target

NCT00648167: Completed Phase 2 study, sponsored by Keryx Biopharmaceuticals.

NCT00648167 is a Phase 2 study that has completed, run by Keryx Biopharmaceuticals. The registered enrollment target is 55 participants, below the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (59% lower). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT00648167, a Phase 2 study, has completed, sponsored by Keryx Biopharmaceuticals.

COMPLETED
Registry status
Phase 2
Development phase
55 participants
Enrollment target

Study Summary

This study is to evaluates the safety and tolerability of Zerenex™ (ferric citrate) as a treatment for hyperphosphatemia in patients with End-Stage Renal Disease.

Interventions

  • DRUG ferric citrate

Trial Details

FieldValue
Enrollment Target 55 participants
Start Date 2008-03
Est. Completion 2009-01
Phase Phase 2
Keryx Biopharmaceuticals

9 total trials

What the finished NCT00648167 record still lists

NCT00648167 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 55 participants, a relatively small participant target, below the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (59% lower).

The record links to 0 conditions, and to 1 intervention - of which ferric citrate is the first listed.

NCT00648167 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT00648167 about?

NCT00648167 is a clinical study titled "A Safety and Tolerability Study of Zerenex (Ferric Citrate) in Patients With End-Stage Renal Disease (ESRD)". This study is to evaluates the safety and tolerability of Zerenex™ (ferric citrate) as a treatment for hyperphosphatemia in patients with End-Stage Renal Disease.

What is the current status of trial NCT00648167?

This trial is currently completed. It is a Phase 2 study. The enrollment target is 55 participants. The study started on 2008-03. Estimated completion is 2009-01.

What interventions are being tested in trial NCT00648167?

The interventions under investigation include: ferric citrate (DRUG).

Who is sponsoring clinical trial NCT00648167?

This trial is sponsored by Keryx Biopharmaceuticals, which has 9 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT00648167's enrollment target sits among peer trials

55 1153rd of 2000 higher than 841 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 NCT00648167, the US trial registry maintained by the National Library of Medicine. NCT00648167 (small enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.