🏛️ Verified NIH Record • Updated 2026-03-21

Abemaciclib Neuropharmacokinetics of Diffuse Midline Glioma Using Intratumoral Microdialysis (NCT05413304)

Feasibility of Evaluating Abemaciclib Neuropharmacokinetics of Diffuse Midline Glioma Using Intratumoral Microdialysis

🔵 Active, Not Recruiting Phase1 💊 Investigational Drug / Biologic Sponsor: National Cancer Institute (NCI)

🩺 Plain-English Summary (8th-Grade Level)

Background: Diffuse midline gliomas are the most aggressive brain tumors of childhood and young adults. Most people with these tumors survive less than 2 years. Researchers want to see if an anticancer drug (abemaciclib) can help. Objective: To see if researchers can measure how much abemaciclib is in a person's brain tumor and brain fluid after they take the drug for a few days. Eligibility: People aged 18 to 39 with recurrent high-grade glioma or diffuse midline glioma. Design: Participants will be screened with: Medical history Physical exam Blood and urine tests Tests of heart function Imaging scans of the brain, with a contrast agent Screening tests will be repeated during the study. Participants will also have chest X-rays. Participants will take abemaciclib by mouth twice a day for 4 and a half days. Participants will undergo surgery. They will have either a tumor biopsy (a needle will be inserted to remove a small piece of tissue) or a surgical resection (part or all of the tumor will be removed). A small tube (catheter) will be placed in their brain for 48 hours to collect fluid samples. They will have a neurological exam every few hours while the tube is in place. Two days later, the tube will be removed without surgery. Participants will stay in the hospital for about 4 days for treatment. Based on the results of abemaciclib levels in the brain, participants may keep taking abemaciclib and another drug (temozolomide) by mouth until their cancer gets worse or they have bad side effects. While taking these two drugs, participants will come back to the clinic for follow-up routinely. They will be followed by the study for life....

Who can join: Review the eligibility criteria below.

Location: National Institutes of Health Clinical Center — Bethesda, Maryland

Age range: 18 Years to 39 Years

📋 "Do I Qualify?" — 1-Minute Self Screener

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Full eligibility criteria are available on the official NIH protocol. View the criteria ↗

📍 All Participating Trial Locations (1 Sites)

  • National Institutes of Health Clinical Center — Bethesda, Maryland

💰 Cost, Insurance & Patient Rights

  • 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
  • Routine Patient Care: Under federal law (ACA § 2709) and many state statutes, routine care costs are covered during participation.
  • Voluntary Participation: You may withdraw at any time without affecting your standard medical care.

Explore by condition: All Glioma clinical trials

💡 How to Participate

  1. Check the checklist above to see if you may qualify.
  2. Review the official NIH record below to find the coordinating site.
  3. Ask about the visit schedule, what is covered at no cost, and any travel support.
  4. Confirm with your own doctor before making a decision.
🏛️ View Official NIH Record ↗