Temporally-modulated Pulsed Radiation Therapy (TMPRT) After Prior EBRT for Recurrent IDH-mutant Gliomas

April 11, 2024 updated by: Washington University School of Medicine

A Pilot Study of Temporally-modulated Pulsed Radiation Therapy to Reirradiate Recurrent IDH-mutant Gliomas After Prior External Beam Radiation Therapy

This clinical trial studies the side effects of temporally-modulated pulsed radiation therapy (TMPRT) in patients with IDH-mutant gliomas who have previously received radiation therapy to the brain. TMPRT is a radiation technique in which radiation is delivered in multiple small doses on a specific timed interval, instead of delivering one large dose at one time. This technique may improve efficacy while reducing toxicity and improving patient quality of life.

Study Overview

Study Type

Interventional

Enrollment (Estimated)

12

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

    • Missouri
      • Saint Louis, Missouri, United States, 63110
        • Recruiting
        • Washington University School of Medicine
        • Principal Investigator:
          • Jiayi Huang, M.D.
        • Sub-Investigator:
          • Stephanie Perkins, M.D.
        • Sub-Investigator:
          • Chris Abraham, M.D.
        • Sub-Investigator:
          • Milan Chheda, M.D.
        • Sub-Investigator:
          • Clifford Robinson, M.D.
        • Contact:
        • Sub-Investigator:
          • Michael Prusator, Ph.D.
        • Sub-Investigator:
          • Yi Huang, M.S.
        • Sub-Investigator:
          • Omar Butt, M.D., Ph.D.
        • Sub-Investigator:
          • Shahed Badiyan, M.D.
        • Sub-Investigator:
          • George Ansstas, M.D.
        • Sub-Investigator:
          • Tanner Johanns, M.D., Ph.D.
        • Sub-Investigator:
          • Nikhil Rammahon, M.D. Ph.D.

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Histologically confirmed recurrent IDH-mutant gliomas (either astrocytoma or oligodendroglioma) with prior external beam radiation therapy (EBRT) to the same region. The recurrent tumor may be either histologically confirmed or based on clinical assessment. Any number of prior recurrences is allowed.
  • Maxium tumor diameter of 7 cm or less.
  • Prior EBRT is ≥ 2 years ago.
  • The region for reirradiation should have received at least 45 Gy from the prior EBRT but no more than 75 Gy. The prior EBRT could be either photon-based or proton-based.
  • Prior SRS to the same region is permitted as long as the cumulative dose of EBRT plus SRS is no more than 75 Gy. The prior SRS should be completed at least 6 months ago.
  • Life expectancy ≥ 12 months
  • At least 18 years of age.
  • Karnofsky performance status (KPS) of at least 70%.
  • Females of childbearing potential (defined as a female who is non-menopausal or surgically sterilized) must be willing to use an acceptable method of birth control (i.e., hormonal contraceptive, intra-uterine device, diaphragm with spermicide, condom with spermicide, or abstinence) for the duration of the study. Should a woman become pregnant or suspect she is pregnant while participating in this study, she must inform her treating physician immediately.
  • Able to understand and willing to sign an IRB-approved written informed consent document (legally authorized representative permitted).

Exclusion Criteria:

  • Leptomeningeal or metastatic involvement.
  • Prior history of grade 3 or higher radiation necrosis that is at least possibly related to prior radiotherapy.
  • Use of concurrent bevacizumab or other anti-VEGF-directed therapy during TMPRT is not allowed. If the patient is on bevacizumab, the patient needs to discontinue bevacizumab for at least 4 weeks prior to the start of TMPRT and remain stable. Other chemotherapy, immunotherapy, or target therapy can be used concurrently or adjuvantly at the discretion of treating physician.
  • Medical contraindication to MRI (e.g., unsafe foreign metallic implants, incompatible pacemaker, inability to lie still for long periods, severe to end-stage kidney disease or on hemodialysis).
  • Pregnant.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Arm 1: temporally-modulated pulsed radiotherapy (TMPRT)
Patients receive TMPRT daily as 10 pulses of 0.2 Gy each with a 3-minute interval between pulses (effective dose rate = 0.0667 Gy/min) to a total dose of 54 Gy at 2 Gy per day. Treatment continues for a total of 27 fractions in the absence of disease progression or unacceptable toxicity.
Intensity modulated RT (IMRT) using single or two arc therapy will be used for RT delivery.
Other Names:
  • pulsed low-dose-rate RT (PLRT)
  • pulsed reduced-dose-rate RT (PRRT)

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Cumulative incidence of grade 3 or higher reirradiation-related central nervous system adverse events
Time Frame: From start of treatment through 1 year
Adverse events are graded according to the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) v5.0
From start of treatment through 1 year
Frequency of acute intolerable toxicities
Time Frame: From start of treatment through 3 months
Intolerable toxicities are defined as grade 3 or higher central nervous system (CNS) adverse events at least possibly related to radiation as graded by the Common Terminology Criteria for Adverse Events v5.0 with the exception of grade 3 fatigue, headache, nausea, and vomiting. Any serious adverse event leading to discontinuation of TMPRT that is at least possibly related will be considered an intolerable toxicity.
From start of treatment through 3 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in symptom burden as measured by M.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)
Time Frame: Assessed at approximately 3 months, 6 months, and 12 months after start of treatment
The MDASI-BT consists of 23 symptom questions asking the patient to rate the severity of their symptoms in the last 24 hours. The range is an 11-point scale (0 to 10), with 0 being "not present" and 10 being "as bad as you can imagine". The symptom composite score is the average of the symptoms items, and the score ranges from 0 to 23 with a higher score indicating more severe symptoms. Symptom burden deterioration is defined as an increase of more than 1 point from baseline on the composite symptom scale.
Assessed at approximately 3 months, 6 months, and 12 months after start of treatment
Change in interference as measured by M.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)
Time Frame: Assessed at approximately 3 months, 6 months, and 12 months after start of treatment
The MDASI-BT consists of 6 interference questions asking the participant to rate how their symptoms interfered with how they felt and functioned in the last 24 hours. The range is an 11-point scale (0 to 10), with 0 being "did not interfere" and 10 being "interfered completely". The interference composite score is the average of the 6 items on interferences, with a higher score indicating more interference. Interference deterioration is defined as an increase of more than 1 point from the baseline on the interference score.
Assessed at approximately 3 months, 6 months, and 12 months after start of treatment
Change in quality of life (QOL) as measured by self-reported QOL on the Linear Analog Scale Assessment (LASA)
Time Frame: Assessed at approximately 3 months, 6 months, and 12 months after start of treatment
The LASA is a single-item questionnaire that asks the participants to rate their overall quality of life. The LASA scale runs from 0 (as bad as it can be) to 10 (as good as it can be).
Assessed at approximately 3 months, 6 months, and 12 months after start of treatment
Progression-free survival (PFS)
Time Frame: At one year after start of treatment
PFS is defined as the time from start of treatment until time of disease progression or death from any cause. Progression will be evaluated per standard clinical care based on the Response Assessment in Neuro-Oncology (RANO) criteria for low-grade glioma (van dent Bent et al., 2011).
At one year after start of treatment
Overall survival (OS)
Time Frame: At one year after start of treatment
OS is defined as the time from start of treatment until the date of death due to any cause.
At one year after start of treatment
Number of reirradiation adverse events
Time Frame: From start of treatment through month 12 follow-up
From start of treatment through month 12 follow-up

Other Outcome Measures

Outcome Measure
Measure Description
Time Frame
Relative changes of different subtypes of circulating T-cells
Time Frame: At baseline and week 6 of radiation therapy.
Blood will be collected before the start of TMPRT and at week 6 of radiation therapy to assess for changes in circulating T-cells.
At baseline and week 6 of radiation therapy.
Relative changes of different subtypes of myeloid cells
Time Frame: At baseline and week 6 of radiation therapy.
Blood will be collected before the start of TMPRT and at week 6 of radiation therapy to assess for changes in myeloid cells.
At baseline and week 6 of radiation therapy.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Jiayi Huang, M.D., Washington University School of Medicine

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

June 28, 2022

Primary Completion (Estimated)

June 28, 2027

Study Completion (Estimated)

June 28, 2027

Study Registration Dates

First Submitted

May 23, 2022

First Submitted That Met QC Criteria

May 23, 2022

First Posted (Actual)

May 26, 2022

Study Record Updates

Last Update Posted (Estimated)

April 15, 2024

Last Update Submitted That Met QC Criteria

April 11, 2024

Last Verified

April 1, 2024

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

Yes

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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