A Study of Reduced-dose Radiation in People With Metastatic Tumors With a Genetic Change
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ClinicalTrials.gov Identifier: NCT05010031 |
Recruitment Status :
Recruiting
First Posted : August 18, 2021
Last Update Posted : September 23, 2021
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
Metastatic Cancer | Radiation: Palliative radiotherapy | Phase 2 |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 58 participants |
Allocation: | N/A |
Intervention Model: | Single Group Assignment |
Intervention Model Description: | Single arm, phase II noninferiority, prospective trial |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | Phase II Study to Examine Precision Radiation in Patients With Pathogenic Mutations in ATM |
Actual Study Start Date : | August 11, 2021 |
Estimated Primary Completion Date : | August 2024 |
Estimated Study Completion Date : | August 2024 |

Arm | Intervention/treatment |
---|---|
Experimental: radiation
Subjects will receive reduced dose radiation to radiographically progressive lesions identified on imaging (including asymptomatic bone metastases).
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Radiation: Palliative radiotherapy
The first cohort of 26 evaluable patients will be treated with 4Gyx2, followed by a 6 month observation period post-RT to assess for treatment failures. If 7 or more failures are observed, cohort 1 will be closed and 4Gyx3 will be explored in the second cohort. If at most 6 failures are detected in the first cohort, dose will be further reduced to 4Gyx1 for the second cohort. Radiation therapy will be delivered according to department standards, including normal tissue constraints per hypofractionated guidelines. All techniques including conventional, 3D-CRT, or IMRT technique may be used. Image guidance at the time of treatment delivery to verify patient positioning may be chosen at the discretion of the treating radiation oncologist according to department standards. |
- Treatment failure rate of irradiated lesion [ Time Frame: 6 month ]Defined as (i) radiographic progression or (ii) re-irradiation to the treated site. If PET is performed, radiographic criteria will be evaluated per PERCIST

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Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
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.
- Concomitant pathogenic mutation in p53
- 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.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT05010031
Contact: Amy Xu, MD, PhD | 646-888-6863 | xua@mskcc.org | |
Contact: Daniel Gomez, MD | 212-639-2087 |
United States, New Jersey | |
Memoral Sloan Kettering Basking Ridge (All Protocol Activities) | Recruiting |
Basking Ridge, New Jersey, United States, 10065 | |
Contact: Amy Xu, MD, PhD 646-888-6863 | |
Memorial Sloan Kettering Monmouth (All protocol activities) | Recruiting |
Middletown, New Jersey, United States, 07748 | |
Contact: Amy Xu, MD, PhD 646-888-6863 | |
Memorial Sloan Kettering Bergen (All protocol activities) | Recruiting |
Montvale, New Jersey, United States, 07645 | |
Contact: Amy Xu, MD, PhD 646-888-6863 | |
United States, New York | |
Memorial Sloan Kettering Commack (All protocol activities) | Recruiting |
Commack, New York, United States, 11725 | |
Contact: Amy Xu, MD, PhD 646-888-6863 | |
Memorial Sloan Kettering Westchester (All Protocol Activities) | Recruiting |
Harrison, New York, United States, 10604 | |
Contact: Amy Xu, MD, PhD 646-888-6863 | |
Memorial Sloan Kettering Cancer Center (All Protocol Activities) | Recruiting |
New York, New York, United States, 10065 | |
Contact: Amy Xu, MD, PhD 646-888-6863 | |
Contact: Daniel Gomez, MD 212-639-2087 | |
Principal Investigator: Amy Xu, MD, PhD | |
Memorial Sloan Kettering Nassau (All protocol activities) | Recruiting |
Uniondale, New York, United States, 11553 | |
Contact: Amy Xu, MD, PhD 646-888-6863 |
Principal Investigator: | Amy Xu, MD, PhD | Memorial Sloan Kettering Cancer Center |
Responsible Party: | Memorial Sloan Kettering Cancer Center |
ClinicalTrials.gov Identifier: | NCT05010031 |
Other Study ID Numbers: |
21-310 |
First Posted: | August 18, 2021 Key Record Dates |
Last Update Posted: | September 23, 2021 |
Last Verified: | September 2021 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | Yes |
Plan Description: | Memorial Sloan Kettering Cancer Center supports the international committee of medical journal editors (ICMJE) and the ethical obligation of responsible sharing of data from clinical trials. The protocol summary, a statistical summary, and informed consent form will be made available on clinicaltrials.gov when required as a condition of Federal awards, other agreements supporting the research and/or as otherwise required. Requests for deidentified individual participant data can be made beginning 12 months after publication and for up to 36 months post publication. Deidentified individual participant data reported in the manuscript will be shared under the terms of a Data Use Agreement and may only be used for approved proposals. Requests may be made to: crdatashare@mskcc.org. |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
Product Manufactured in and Exported from the U.S.: | No |
Reduced-dose Radiation Pathogenic Mutations ATM (ataxia telangiectasia mutated) 21-310 |
Neoplasm Metastasis Neoplastic Processes Neoplasms Pathologic Processes |