A Study of Bexarotene Combined With Radiotherapy in People With Mycosis Fungoides
A Phase Ib Trial Combining Bexarotene With Ultra-Low Dose Total Skin Electron Beam (Tseb) Radiotherapy For The Treatment Of Diffuse Cutaneous T-Cell Lymphomas
1 other identifier
interventional
20
1 country
3
Brief Summary
The researchers are doing this study to test the safety of combining bexarotene with TSEB radiotherapy in people who have a common form of CTCL called mycosis fungoides (MF). Bexarotene is a form of vitamin A that activates proteins called retinoid X receptors, which may stop the growth of cancer cells and kill them. TSEB radiotherapy is a type of radiation therapy that treats the entire surface of the skin with very low doses of radiation to kill cancer cells and shrink tumors. This type of radiation does not pass through the outer layers of the skin into the tissues and organs below the skin. The study researchers think that giving bexarotene treatment at the same time as treatment with TSEB radiotherapy may be more effective against MF than either treatment given alone or in sequence (one after the other).
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_1
Started Mar 2022
Longer than P75 for phase_1
3 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
March 16, 2022
CompletedStudy Start
First participant enrolled
March 16, 2022
CompletedFirst Posted
Study publicly available on registry
March 25, 2022
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 1, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
March 1, 2027
February 4, 2026
February 1, 2026
5 years
March 16, 2022
February 3, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Incidence of radiation dermatitis grade 3+
as defined by number of patients who develop CTCAE, v. 5, grade 3+ toxicities at 1 month post-treatment.
1 month post-treatment
Secondary Outcomes (1)
Overall skin response rate
up to 82 days post-TSEB
Study Arms (1)
Bexarotene Combined With Radiotherapy
EXPERIMENTALPatients will be initiated on bexarotene 150 mg daily on Day 1, with dose increase to 300 mg daily on Day 15. Patients will receive Cycle 1 of TSEB on Day 22 (with 2 Gy given on two consecutive days -Day 22 and 23), with safety assessment on Day 52. Efficacy will first be assessed on Day 52 and then again on Day 82 by global response assessment, including mSWAT. Patients who have less than 70% reduction from baseline mSWAT score will be eligible for subsequent cycles of TSEB (administered as 4 Gy over 2 consecutive days), until mSWAT score reduction of ≥ 70%, and up to a total of 6 cycles. Treatment may continue until disease progression, unacceptable toxicity, recommended termination by treating physician, or termination of the study.
Interventions
Orally every day starting at the dose of 150 mg/day flat dose. At Day 15, if the treatment is tolerated, patients will escalate the dose of bexarotene to 300 mg/day, and that dose will remain constant during the rest of the study.
At Day 21, if the bexarotene has shown to be tolerated, patients will receive the first dose of TSEB (2 Gy x 2).
Eligibility Criteria
You may qualify if:
- Age ≥18 years
- Pathologically confirmed cutaneous T-cell lymphoma consistent with mycosis fungoides (MF) based on biopsy done or reviewed at MSKCC
- Stage IB or higher MF per ISCL/EORTC criteria; concurrent diagnosis of Sézary syndrome permissible. Patients who have not had prior systemic therapies and refractory/relapsed patients are eligible.
- Baseline mSWAT score of at least 10
- Stable topical steroids or systemic antipruritic agent (e.g. antihistamines, doxepin, GABA analogs) preceding study entry is permissible, but no new prescribed or over the counter topical or systemic anti-pruritics started post-enrollment
- Eastern Cooperative Oncology Group (ECOG) performance status of 0-2
- Ability to provide informed consent
You may not qualify if:
- Any oral retinoid therapy for any indication within 3 weeks of the first dose of study drug
- Prior TSEB (prior focal skin-directed RT acceptable)
- Concurrent diagnosis of systemic anaplastic large cell lymphoma (ALCL) or another non-Hodgkin lymphoma
- Concurrent diagnosis of additional non-skin malignancy
- Pregnancy
- Patients unwilling to use two forms of barrier contraception while taking study medication
- Receipt of treatment with another investigational device or drug (at present or within 2 weeks of enrollment)
- Familial hypertriglyceridemia or other medical conditions in which use of bexarotene would be contraindicated
- High likelihood of protocol non-compliance (in opinion of investigator)
- Systemic steroids within two weeks of first dose of study drug (patients on systemic steroids for non-disease related conditions will be permitted per investigator discretion)
- Prohibited concurrent medications
- Gemfibrozil is contraindicated as may increase bexarotene concentrations
- Bexarotene is a minor CYP3A4 substrate: avoid strong/moderate CYP3A4 inducers and inhibitors, if possible, but concomitant use is not a contraindication Bexarotene is a moderate CYP3A4 inducer: avoid concurrent administration with CYP3A4 sensitive substrates, for which minimal concentration changes may lead to therapeutic failures of the substrate (e.g. cyclosporine, tacrolimus, sirolimus, quinidine, fentanyl), if possible
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (3)
Memorial Sloan Kettering Suffolk - Commack (Limited Protocol Activities)
Commack, New York, 11725, United States
Memorial Sloan Kettering Cancer Center (All Protocol Activities)
New York, New York, 10065, United States
Memorial Sloan Kettering Nassau (Limited Protocol Activites)
Rockville Centre, New York, 11553, United States
Related Links
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Brandon Imber, MD
Memorial Sloan Kettering Cancer Center
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- NA
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
March 16, 2022
First Posted
March 25, 2022
Study Start
March 16, 2022
Primary Completion (Estimated)
March 1, 2027
Study Completion (Estimated)
March 1, 2027
Last Updated
February 4, 2026
Record last verified: 2026-02
Data Sharing
- IPD Sharing
- Will share
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.