Ultra Low Dose Radiation Therapy in Treating Patients With Mycosis Fungoides

April 10, 2026 updated by: M.D. Anderson Cancer Center

Ultra Low Dose Radiation for Local Treatment of Cutaneous Mycosis Fungoides

This phase II trial studies how well ultra low dose radiation therapy works in treating patients with mycosis fungoides. Radiation therapy uses high energy x-rays to kill tumor cells and shrink tumors. Giving ultra low doses of radiation may help control the disease and reduce side effects compared to treatment with higher doses.

Study Overview

Status

Recruiting

Conditions

Intervention / Treatment

Detailed Description

PRIMARY OBJECTIVES:

I. To evaluate the efficacy of low dose radiation in the management of cutaneous mycosis fungoides (MF), measured as any local control for each lesion at 12 (+/- 2) weeks after the treatment, in patients with stage IA - IVB cutaneous MF.

SECONDARY OBJECTIVES:

I. To evaluate complete response (CR) rates at 12 (+2) weeks and beyond.

II. To evaluate the persistence of response (CR, partial response [PR], stable disease, or progressive disease) in the treated lesion beyond 12 (+2) weeks.

III. To evaluate overall survival.

IV. To evaluate progression free survival.

V. To evaluate patient symptom relief.

VI. To evaluate the toxicity of radiation to the skin.

VII. To assess if number of previous therapies including chemotherapy, targeted therapy, topical therapy, or total skin radiation affects the response.

VIII. To characterize the microbiome of mycosis fungoides patient within both the lesion and unaffected skin.

IX. To characterize shifts in the microbiome that occur after radiation therapy.

OUTLINE:

Patients undergo ultra low dose radiation therapy at the discretion of the treating physician.

After completion of study treatment, patients are followed up at 4-6 and 10-14 weeks, every 3 months for 6-8 months, then every 6-12 months for up to 2 years.

Study Type

Interventional

Enrollment (Estimated)

50

Phase

  • Phase 2

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

    • Texas
      • Houston, Texas, United States, 77030
        • Recruiting
        • M D Anderson Cancer Center
        • Contact:
          • Bouthaina S. Dabaja
          • Phone Number: 713-563-2300
        • Principal Investigator:
          • Bouthaina S. Dabaja

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

14 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Patients with pathologically confirmed MF with cutaneous involvement.

    • Patients must have clinically measurable disease of at least 1 lesion on physical (skin) exam.
    • If a patient has a prior pathological diagnosis of MF and is clinically diagnosed with a new lesion, the new lesion is eligible for enrollment without additionally biopsy confirmation.
  • Lesions of any surface span as long as =< 1 cm in maximal height measured from the skin surface for which local control is desired are eligible; a single patient may have multiple eligible lesions that are individually enrolled for the study.
  • All stages of disease (IA through IVB) where radiation therapy is being considered for local control are eligible. Patients who are concomitantly undergoing systemic therapy for more advanced stage disease are eligible.
  • Patients who are concomitantly undergoing systemic therapy for more advanced stage disease are eligible.
  • Female patients of childbearing potential must have a negative serum pregnancy test (beta human chorionic gonadotropin [hCG]) within 2 weeks of protocol entry if the patient is unsure of their pregnancy status. Patient signature declaring that they are not pregnant on the informed consent for treatment that is used in the Department of Radiation Oncology is also an acceptable substitution for a serum pregnancy test.
  • Patients who are receiving or are planned to start topical chemotherapeutics, retinoids or imiquimod to other lesions that are not planned for enrollment are eligible; however, the lesion being considered for enrollment should not be under active therapy with these topical agents immediately prior to enrollment.

    • Use of topical chemotherapeutics, retinoids or imiquimod on the lesion that is a candidate for enrollment must be halted at least 24 hours prior to enrollment in the study.

Exclusion Criteria:

  • Pregnant patients do not meet inclusion criteria for radiation therapy.

    • Patients who subsequently become pregnant may continue follow up within the protocol, but a negative urine pregnancy test will need to be obtained before additional lesions may be enrolled.
  • Patients with active lupus or scleroderma
  • Lesions with a height > 1 cm measured from the skin surface are not eligible for this protocol.

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: Treatment (ultra low dose radiation therapy)
Patients undergo ultra low dose radiation therapy at the discretion of the treating physician.
Ancillary studies
Other Names:
  • Quality of Life Assessment
Ancillary studies
Undergo ultra low dose radiation therapy
Other Names:
  • Cancer Radiotherapy
  • Irradiate
  • Irradiated
  • Radiation
  • Radiotherapeutics
  • RT
  • Therapy, Radiation
  • irradiation
  • RADIOTHERAPY

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Local cutaneous control
Time Frame: At 12 (+/-2) weeks after initial treatment
Defined as local control of the treated lesion within the radiation treatment field, which will be categorized as either complete response or partial response of the lesion within the radiation treatment field. The control rate will be estimated along with 95% confidence intervals. The association between control rate and patient's clinical characteristics will be examined by Wilcoxon's rank sum test or Fisher's exact test, as appropriate. For each patient, the number of lesions under control will be summarized individually. Since there may be multiple lesions per patient, a generalized linear mixed model will be utilized to assess the clinical factor effect (e.g. previous therapies) on control rate after considering the dependence among the lesions within each patient.
At 12 (+/-2) weeks after initial treatment

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Stable disease, progressive disease, or local regional control (local control within the radiation field margin but not encompassing the original treated lesion)
Time Frame: Up to 2 years
Will be described with frequency tables.
Up to 2 years
Overall survival
Time Frame: From initiation of treatment until death, assessed up to 2 years
Will be described with frequency tables. Will be conducted using the Kaplan Meier Method.
From initiation of treatment until death, assessed up to 2 years
Progression free survival
Time Frame: From treatment until progression or death, assessed up to 2 years
Will be described with frequency tables. Will be conducted using the Kaplan Meier Method.
From treatment until progression or death, assessed up to 2 years
Frequency/severity of skin toxicity
Time Frame: Up to 14 weeks
Defined by patient reported symptom surveys. Toxicity type (acute or chronic), severity and attribution will be summarized for each patient using frequency tables. Different time points (e.g. pre and post-treatment) will be compared using a paired t-test or Wilcoxon signed rank test as appropriate.
Up to 14 weeks
Microbiome analysis
Time Frame: Up to 2 years
Will be described with frequency tables.
Up to 2 years
Quality of life
Time Frame: Up to 2 years
Will be assessed by the Skindex-16 survey. Will be summarized by domains. Different time points (e.g. pre and post-treatment) will be compared using a paired t-test or Wilcoxon signed rank test as appropriate.
Up to 2 years

Collaborators and Investigators

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

Sponsor

Collaborators

Investigators

  • Principal Investigator: Bouthaina S Dabaja, M.D. Anderson Cancer Center

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)

January 6, 2018

Primary Completion (Estimated)

December 31, 2027

Study Completion (Estimated)

December 31, 2027

Study Registration Dates

First Submitted

January 8, 2018

First Submitted That Met QC Criteria

January 8, 2018

First Posted (Actual)

January 12, 2018

Study Record Updates

Last Update Posted (Actual)

April 15, 2026

Last Update Submitted That Met QC Criteria

April 10, 2026

Last Verified

April 1, 2026

More Information

Terms related to this study

Other Study ID Numbers

  • 2017-0276 (Other Identifier: M D Anderson Cancer Center)
  • P30CA016672 (U.S. NIH Grant/Contract)
  • NCI-2018-00861 (Registry Identifier: CTRP (Clinical Trial Reporting Program))

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

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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