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New hope for rare cancers: drug targets genetic weakness

NCT ID NCT06390839

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing This study
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 24, 2026 · Last updated Jul 17, 2026 · Updated 2 times

Summary

This phase II trial tests the drug palbociclib in 43 patients with advanced cancers that have extra copies of the CDK4 or CDK6 genes. The drug works by blocking signals that tell cancer cells to multiply. Researchers will measure how many patients' tumors shrink or stop growing for at least 6 months.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
palbociclib (a kinase inhibitor pill that blocks cancer cell growth signals)
What this could lead to
If successful, this could provide a targeted treatment option for patients with certain hard-to-treat cancers that have CDK4 or CDK6 gene changes.
What could go wrong
This is a small, early-phase trial (43 patients) with no control group, so results may not apply broadly. Palbociclib can cause side effects like low blood counts and fatigue.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 2

Tests whether the treatment actually works, and watches for side effects, in a larger group.

Participants

43 people

The number who actually took part.

Started

Mar 2017

Expected to finish

Jan 2027

An estimate. End dates often move.

Lead sponsor

A government research agency

The lead sponsor is the US National Institutes of Health.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Patients must have met applicable eligibility criteria in the Master MATCH Protocol EAY131/ NCI-2015-00054 prior to registration to treatment subprotocol * Patients must have CDK4 amplification or CDK6 amplification, or another aberration, as determined via the MATCH Master Protocol * Patients must have an electrocardiogram (ECG) within 8 weeks prior to treatment assignment and must have no clinically important abnormalities in rhythm, conduction or morphology of resting ECG (e.g. complete left bundle branch block, third degree heart block) * Patients must not have breast cancer, mantle cell lymphoma, myeloma, or liposarcoma * Patients must not have known hypersensitivity to palbociclib or compounds of similar chemical or biologic composition * Patients with known or symptoms of left ventricular dysfunction will be excluded * Patients must not have received prior therapy with a CDK4 or CDK6 inhibitor (including but not limited to palbociclib, abemaciclib, or ribociclib) * Patients must not be using drugs or foods that are known potent CYP3A4 inhibitors or inducers, or are CYP3A substrates with narrow therapeutic indices

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • ECOG-ACRIN Cancer Research Group

    Philadelphia, Pennsylvania, 19103, United States

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Other studies related to the condition(s) this trial covers.