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NCT01323101 · ClinicalTrials.gov registry record · Phase 4

Doxycycline Effects on Inflammation in Cystic Fibrosis

A Phase 4 study, sponsored by University of Southern California.

Completed
Registry status
Phase 4
Development phase
21
Enrollment target

NCT01323101: Completed Phase 4 study, sponsored by University of Southern California.

NCT01323101 is a Phase 4 study that has completed, run by University of Southern California. The registered enrollment target is 21 participants, below the 518-participant average among 9,235 other Phase 4 trials with a reported enrollment target (96% lower). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT01323101, a Phase 4 study, has completed, sponsored by University of Southern California.

COMPLETED
Registry status
Phase 4
Development phase
21 participants
Enrollment target

Study Summary

Doxycycline is known to exhibit immune modulatory activities beyond its antibacterial effects. In particular, doxycycline is a potent inhibitor of matrix metalloproteinase 9, which is a protease derived largely from neutrophils. Recent studies demonstrate a significant correlation between pulmonary disease severity and sputum concentrations of MMP-9 in patients with CF. In addition, sputum MMP-9 levels are associated with airway remodeling in CF. The goal of this study is to determine the therapeutic potential of doxycycline in modulating host airway inflammation in patients with CF. Specifically, the study will characterize the PK /PD of doxycycline, evaluate the safety of short term therapy, and explore the concentration effect relationship between doxycycline exposure and sputum biomarker levels.

Interventions

  • DRUG Doxycycline
  • OTHER No doxycycline

Trial Details

FieldValue
Enrollment Target 21 participants
Start Date 2008-04
Est. Completion 2010-12
Phase Phase 4
University of Southern California

617 total trials

What the finished NCT01323101 record still lists

NCT01323101 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 21 participants, a relatively small participant target, below the 518-participant average among 9,235 other Phase 4 trials with a reported enrollment target (96% lower).

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

NCT01323101 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT01323101 about?

NCT01323101 is a clinical study titled "Doxycycline Effects on Inflammation in Cystic Fibrosis". Doxycycline is known to exhibit immune modulatory activities beyond its antibacterial effects. In particular, doxycycline is a potent inhibitor of matrix metalloproteinase 9, which is a protease derived largely from neutrophils. Recent studies demonstrate a significant correlation between pulmonary ...

What is the current status of trial NCT01323101?

This trial is currently completed. It is a Phase 4 study. The enrollment target is 21 participants. The study started on 2008-04. Estimated completion is 2010-12.

What interventions are being tested in trial NCT01323101?

The interventions under investigation include: Doxycycline (DRUG), No doxycycline (OTHER).

Who is sponsoring clinical trial NCT01323101?

This trial is sponsored by University of Southern California, which has 617 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT01323101's enrollment target sits among peer trials

21 1742nd of 2000 higher than 248 of 2,000 other Phase 4 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 4 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 NCT01323101, the US trial registry maintained by the National Library of Medicine. NCT01323101 (small enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.