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NCT03904862 · ClinicalTrials.gov registry record · Phase 1

Testing the Safety and Tolerability of CX-4945 in Patients With Recurrent Medulloblastoma Who May or May Not Have Surgery

A Phase 1 study, sponsored by Pediatric Brain Tumor Consortium.

Terminated
Registry status
Phase 1
Development phase
21
Enrollment target

NCT03904862: Clinical Trial Phase 1 study, sponsored by Pediatric Brain Tumor Consortium.

NCT03904862 is a Phase 1 study that was terminated before completion, run by Pediatric Brain Tumor Consortium. The registered enrollment target is 21 participants, below the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (65% lower). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT03904862, a Phase 1 study, was terminated before completion, sponsored by Pediatric Brain Tumor Consortium.

TERMINATED
Registry status
Phase 1
Development phase
21 participants
Enrollment target

Study Summary

This is a multi center, Phase I, Phase II and surgical study of the CX-4945 drug (silmitasertib sodium) for patients with recurrent SHH (Sonic Hedgehog) medulloblastoma

Primary Outcome

Defined as the highest dose level at which six patients have been treated with at most one patient experiencing a dose limiting toxicity (DLT) and the next higher dose level has been determined to be too toxic.

Interventions

  • DRUG CX 4945

Trial Details

FieldValue
Enrollment Target 21 participants
Start Date 2019-07-25
Est. Completion 2025-08-11
Phase Phase 1
Pediatric Brain Tumor Consortium

27 total trials

Why NCT03904862 stopped before completion

NCT03904862 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 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (65% lower).

The record links to 0 conditions, and to 1 intervention - of which CX 4945 is the first listed.

NCT03904862 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT03904862 about?

NCT03904862 is a clinical study titled "Testing the Safety and Tolerability of CX-4945 in Patients With Recurrent Medulloblastoma Who May or May Not Have Surgery". This is a multi center, Phase I, Phase II and surgical study of the CX-4945 drug (silmitasertib sodium) for patients with recurrent SHH (Sonic Hedgehog) medulloblastoma

What is the current status of trial NCT03904862?

This trial is currently terminated. It is a Phase 1 study. The enrollment target is 21 participants. The study started on 2019-07-25. Estimated completion is 2025-08-11.

What interventions are being tested in trial NCT03904862?

The interventions under investigation include: CX 4945 (DRUG).

Who is sponsoring clinical trial NCT03904862?

This trial is sponsored by Pediatric Brain Tumor Consortium, which has 27 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT03904862's enrollment target sits among peer trials

21 1615th of 2000 higher than 372 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 NCT03904862, the US trial registry maintained by the National Library of Medicine. NCT03904862 (small enrollment · none site footprint · terminated) retrieved and formatted by PlainTrial, see methodology.