NCT05940493

Brief Summary

This study is being done to learn about how an investigational drug called abemaciclib works in treating patients with a newly-diagnosed grade 3 meningioma. Abemaciclib is a drug that is approved by the FDA, but not for brain tumors. Participants who consent to the trial will have surgical tissue collected from the planned surgical resection and tested. If the tissue shows positive results for RB cells and participants are qualified, they will be enrolled and receive study treatment two to five weeks after completing standard-of-care radiation therapy. This is a randomized clinical trial which means that participants will be randomly assigned to a treatment based on chance, like a flip of a coin. Neither the participant nor the researcher chooses the assigned group. Randomization will help the researchers study how the drug works by comparing the difference between the study drug and the placebo and how they work in treating brain tumors. This is a double-blinded study, which means that neither the participant nor the study team will know which treatment the participant is receiving.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
72

participants targeted

Target at P50-P75 for phase_2

Timeline
52mo left

Started Mar 2025

Longer than P75 for phase_2

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress21%
Mar 2025Sep 2030

First Submitted

Initial submission to the registry

July 4, 2023

Completed
7 days until next milestone

First Posted

Study publicly available on registry

July 11, 2023

Completed
1.7 years until next milestone

Study Start

First participant enrolled

March 24, 2025

Completed
3.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2028

Expected
2 years until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2030

Last Updated

March 13, 2026

Status Verified

March 1, 2026

Enrollment Period

3.4 years

First QC Date

July 4, 2023

Last Update Submit

March 11, 2026

Conditions

Outcome Measures

Primary Outcomes (1)

  • Progression-Free Survival Characteristics Over 24 Months

    Progression-free survival at 24 months (PFS24) will be analyzed using Kaplan-Meier methods.

    Date of randomization to date of protocol-defined disease progression, assessed up to 24 months

Secondary Outcomes (7)

  • Incidence of Drug-related Toxicities

    Date of first dose up to 30 days after last dose

  • Incidence of Adverse Events as Assessed by CTCAE v5.0

    Date of randomization up to 30 days after last dose

  • Incidence of Deaths

    Date of first dose to date of death due to any cause, assessed over 60 months

  • Incidence of Clinical Laboratory Abnormalities as Assessed by CTCAE v5.0

    Date of randomization up to 30 days after last dose

  • Progression-Free Survival Characteristics Over 12 Months

    Date of randomization to date of protocol-defined disease progression, assessed up to 12 months

  • +2 more secondary outcomes

Study Arms (2)

Active Treatment (Abemaciclib)

EXPERIMENTAL

Administered twice daily on days 1-28 of each 28-day cycle.

Drug: Abemaciclib

Placebo

PLACEBO COMPARATOR

Administered twice daily on days 1-28 of each 28-day cycle.

Drug: Placebo

Interventions

Tablet

Active Treatment (Abemaciclib)

Tablet

Also known as: Abemaciclib placebo
Placebo

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Participants with newly diagnosed intracranial WHO Grade 3 meningioma; or,
  • Participants with previous lower grade meningioma and histopathologically confirmed newly transformation to Grade 3.
  • Plan to receive or have received upfront standard of care radiation therapy (RT) for the newly diagnosed WHO Grade 3 meningioma.
  • No prior treatment for Grade 3 meningioma other than surgical resection or biopsy and upfront RT. If previously diagnosed with a lower grade meningioma, no prior treatment other than surgical resection or biopsy and no prior RT.
  • Ability to understand and the willingness to sign a written informed consent document (personally or by the legally authorized representative, if applicable).
  • Participant has voluntarily agreed to participate by giving written informed consent (personally or via legally authorized representative\[s\], and assent, if applicable). Written informed consent for the protocol must be obtained prior to any screening procedures. If consent cannot be expressed in writing, it must be formally document and witnessed, ideally via an independent trusted witness. Participant must be willing and able to comply with scheduled visits, treatment plans, laboratory tests and other procedures.
  • Age ≥18 years at time of consent.
  • Have a performance status (PS) of ≤2 on the Eastern Cooperative Oncology Group (ECOG) scale.
  • Ability to swallow oral medications.
  • Participant has adequate bone marrow and organ function as defined by the following laboratory values (as assessed by the local laboratory for eligibility):
  • Adequate Bone Marrow Function: absolute neutrophil count ≥1,500/mcL, platelets ≥100,000/mcL, and hemoglobin ≥8.0 g/dL (individual may receive erythrocyte transfusions to achieve this hemoglobin level at the discretion of the investigator; initial treatment must no begin earlier than the day after any erythrocyte transfusion).
  • Adequate Hepatic Function: total bilirubin ≤1.5x ULN (individuals with Gilbert's syndrome with a total bilirubin ≤2.0x ULN and direct bilirubin within normal limits are permitted), AST/SGOT ≤3x ULN, and ALT/SGPT ≤3x ULN.
  • Confirmed negative serum pregnancy test (β-hCG) before starting study treatment or participant who is no longer of childbearing potential due to surgical, chemical, or natural menopause.
  • For females of reproductive potential: use of highly effective contraception during study participation and for an additional 3 weeks after the end of treatment administration.
  • For males of reproductive potential: use of condoms or other methods to ensure effective contraception with partner and for an additional 3 weeks after the end of treatment administration.

You may not qualify if:

  • Prior history of cancer with ongoing treatment of disease.
  • Pregnancy or breastfeeding.
  • Known allergic reactions to components of the abemaciclib.
  • Active infection or fever \>38.5°C requiring systemic antibiotic, antifungal or antiviral therapy within 4 weeks of Day 1.
  • Known to have active (acute or chronic) or uncontrolled severe infection, liver disease such as cirrhosis, decompensated liver disease, and active and chronic hepatitis.
  • Known active systemic bacterial infection (requiring IV antibiotics at time of initiating study treatment), fungal infection, or detectable viral infection (such as known HIV positivity or with known HBV or HCV). Screening is not required for enrollment.
  • Participant has serious and/or uncontrolled preexisting medical condition(s) that, in the judgment of the investigator, would preclude participation in this study.
  • Prior therapy with any CDK4/6 inhibitor. Prior therapy is defined as therapeutic dosing.
  • Treatment with another investigational drug within 5 half-lives of the investigational product.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

St. Joseph's Hospital and Medical Center

Phoenix, Arizona, 85013, United States

RECRUITING

MeSH Terms

Conditions

Meningioma

Interventions

abemaciclib

Condition Hierarchy (Ancestors)

Neoplasms, Nerve TissueNeoplasms by Histologic TypeNeoplasmsNeoplasms, Vascular TissueMeningeal NeoplasmsCentral Nervous System NeoplasmsNervous System NeoplasmsNeoplasms by SiteNervous System Diseases

Study Officials

  • Nader Sanai, MD

    Ivy Brain Tumor Center

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
All site study personnel, except the unblinded dispenser and verifier, will be aware of whether participants are receiving abemaciclib or placebo until the study is formally unblinded.
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Chief Scientific Officer/Director of the Ivy Brain Tumor Center

Study Record Dates

First Submitted

July 4, 2023

First Posted

July 11, 2023

Study Start

March 24, 2025

Primary Completion (Estimated)

September 1, 2028

Study Completion (Estimated)

September 1, 2030

Last Updated

March 13, 2026

Record last verified: 2026-03

Data Sharing

IPD Sharing
Will not share

Locations