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NCT03043989 · ClinicalTrials.gov registry record · Phase 1

Cohorts of Docetaxel or Cabazitaxel in Combination With the Potent CYP3A4 Inhibitor, Clarithromycin

A Phase 1 study, sponsored by Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins.

Terminated
Registry status
Phase 1
Development phase
4
Enrollment target

NCT03043989: Clinical Trial Phase 1 study, sponsored by Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins.

NCT03043989 is a Phase 1 study that was terminated before completion, run by Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins. The registered enrollment target is 4 participants, below the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (93% lower). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT03043989, a Phase 1 study, was terminated before completion, sponsored by Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins.

TERMINATED
Registry status
Phase 1
Development phase
4 participants
Enrollment target

Study Summary

This clinical trial is being conducted to recommend a safe and tolerable phase 2 dose of docetaxel or cabazitaxel when combined with clarithromycin in men who have developed castrate-resistant prostate cancer. In the castrate-resistant setting, resistance to taxane therapy inevitably develops. Men who develop resistance to taxanes have a very poor prognosis, and few treatment options. It is believed that CYP enzymes contribute to docetaxel and cabazitaxel resistance in metastatic prostate cancer, and this resistance can be mitigated through pharmacologic CYP inhibition. In this study a potent CYP3A inhibitor, clarithromycin, will be co-administered concurrently with either docetaxel or cabazitaxel, whose systemic metabolism is dependent of CYP3A4, with the intent to overcome resistance to taxanes.

Interventions

  • DRUG Docetaxel
  • DRUG Cabazitaxel
  • DRUG Clarithromycin

Trial Details

FieldValue
Enrollment Target 4 participants
Start Date 2017-03-21
Est. Completion 2019-07-26
Phase Phase 1

Why NCT03043989 stopped before completion

NCT03043989 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 4 participants, a relatively small participant target, below the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (93% lower).

The record links to 0 conditions, and to 3 interventions - of which Docetaxel is the first listed.

NCT03043989 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT03043989 about?

NCT03043989 is a clinical study titled "Cohorts of Docetaxel or Cabazitaxel in Combination With the Potent CYP3A4 Inhibitor, Clarithromycin". This clinical trial is being conducted to recommend a safe and tolerable phase 2 dose of docetaxel or cabazitaxel when combined with clarithromycin in men who have developed castrate-resistant prostate cancer. In the castrate-resistant setting, resistance to taxane therapy inevitably develops. Men ...

What is the current status of trial NCT03043989?

This trial is currently terminated. It is a Phase 1 study. The enrollment target is 4 participants. The study started on 2017-03-21. Estimated completion is 2019-07-26.

What interventions are being tested in trial NCT03043989?

The interventions under investigation include: Docetaxel (DRUG), Cabazitaxel (DRUG), Clarithromycin (DRUG).

Who is sponsoring clinical trial NCT03043989?

This trial is sponsored by Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, which has 523 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT03043989's enrollment target sits among peer trials

4 1995th of 2000 higher than 2 of 2,000 other Phase 1 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 1 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 NCT03043989, the US trial registry maintained by the National Library of Medicine. NCT03043989 (small enrollment · none site footprint · terminated) retrieved and formatted by PlainTrial, see methodology.