NCT05010031 · Memorial Sloan Kettering Cancer Center
A Study of Reduced-dose Radiation in People With Metastatic Tumors With a Genetic Change
What this study is about
This study will test whether reduced-dose radiotherapy is an effective treatment for metastatic tumors with an ATM mutation. The researchers want to find the lowest dose of radiation that would still be effective to treat these tumors.
View original scientific description
This study will test whether reduced-dose radiotherapy is an effective treatment for metastatic tumors with an ATM mutation. The researchers want to find the lowest dose of radiation that would still be effective to treat these tumors.
Interventions
RADIATION
Palliative radiotherapy
Initial cohort (stage 1) of patients will receive 4Gy x 2. They will be re-evaluated at 2 and 6 months (+/- 2 weeks). Accounting for anticipated survival times of these patients, we expect to have 12 evaluable patients from 20 enrolled patients. For stage 2 dose reduction will be explored across two palliative regimens, with timepoint for local failure adjusted accordingly.
Primary outcome measures
Treatment failure rate of irradiated lesion
Time frame: up to 12 months
Defined as (i) radiographic progression or (ii) re-irradiation to the treated site. If PET is performed, radiographic criteria will be evaluated per PERCIST
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Histologically confirmed malignancy with at least one metastatic lesion referred for palliative radiotherapy
- Pathogenic mutation in ATM (somatic and germline allowed)
- ECOG performance status 0-2
- Age ≥ 18 years.
- Able to provide informed consent.
- Patients at reproductive potential must agree to practice an effective contraceptive method during radiation treatments.
- Expected life expectancy of at least 6 months
Exclusion criteria
- Previous radiotherapy to the intended treatment site that precludes developing a treatment plan that respects normal tissue tolerances.
- Serious medical co-morbidities precluding radiotherapy.
- Pregnant or breast-feeding women.
- Lesions excluded from de-escalation include regions in which the risk of local disease progression is unacceptably high, including CNS disease and cord compression, and areas in which re-irradiation would not be feasible, including spinal cord overlap.
Where
- Basking Ridge, New Jersey
- Middletown, New Jersey
- Montvale, New Jersey
- Commack, New York
- Harrison, New York
- New York, New York
- Uniondale, New York
Related conditions & keywords
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced May 11, 2026 · Source of record for eligibility and locations