Skip to content

Mogamulizumab + Low-Dose Total Skin Electron Beam Tx in Mycosis Fungoides & Sézary Syndrome

A Phase 2 Single Center, Single Arm, Open Label Mogamulizumab Combined Upfront With Low Dose Total Skin Electron Beam Therapy (LD TSEBT) in Patients With Mycosis Fungoides (MF) and Sézary Syndrome (SS)

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04256018
Enrollment
30
Registered
2020-02-05
Start date
2020-03-30
Completion date
2026-12-31
Last updated
2025-07-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Sezary Syndrome, Mycosis Fungoides

Keywords

CTCL

Brief summary

The purpose of this study is to determine the efficacy of the combination of LD-TSEBT and mogamulizumab in patients with MF and SS. And to evaluate the secondary measures of clinical benefit of the combination therapy and to evaluate the safety and tolerability of the combination in patients with MF and SS.

Detailed description

Primary Objective:To determine the efficacy of the combination of LD TSEBT and mogamulizumab in patients with MF and SS Secondary Objective: To evaluate the secondary measures of clinical benefit of the combination therapy and to evaluate the safety and tolerability of the combination in patients with MF and SS

Interventions

Administered 1 mg/kg as an intravenous infusion over at least 60 minutes on Days 1, 8, 15, and 22 of the first 28 day cycle and on Days 1 and 15 of each subsequent cycle.

RADIATIONLD TSEBT

Patients will receive total skin dose of 12 Gy fractionated at 4 to 6 Gy per week, for 2-3 weeks

Sponsors

Stanford University
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Stages IB-IV MF or SS 1. Stages IB-IV MF or SS 2. At least 1 prior standard-of-care therapy 3. Prior LD-TSEBT (\> 3 months prior) and prior mogamulizumab is allowed, as long as progressive disease (PD) did not occur while on therapy, and did not discontinue due to toxicities 4. ≥ 18 years of age 5. ECOG performance status of 0 to 2 6. All clinically-significant toxic effects of prior cancer therapy resolved to Grade ≤ 1 by the National Cancer Institute Common Terminology Criteria for Adverse Events, version 5.0 (NCI-CTCAE, v 5.0). 7. MF and a known history of non-complicated staphylococcus colonization/infection is eligible provided that stable doses of prophylactic antibiotics continue. 8. The following minimum wash-out from previous treatments are required (prior to 1st day of treatment), if applicable. • ≥ 2weeks for retinoids, interferons, Vorinostat, romidepsin, pralatrexate, or other systemic anti-cancer/CTCL therapies • ≥ 2 weeks for phototherapy, local radiation therapy • ≥ 2 weeks for topical therapy (including topical steroid, retinoid, nitrogen mustard, or imiquimod) • ≥ 12 weeks for total skin electron beam therapy • \> 12 weeks for alemtuzumab • Rapidly progressive malignant disease may be enrolled prior to above periods after discussion with the Protocol Director. 9. Adequate hematologic function • Absolute neutrophil count (ANC) ≥ 1,000 cells/μL (≥ 1,000/mm3) • Platelets ≥ 75,000 cells/μL (≥ 75,000/mm3). 10. Adequate hepatic function * Bilirubin ≤ 1.5 times the specific institutional upper limit of normal (ULN). Exception: If Gilbert's syndrome; then ≤ 5 times ULN. * Aspartate transaminase (AST) and alanine transaminase (ALT) each ≤ 2.5 x ULN; or ≤ 5.0 x ULN in the presence of known hepatic involvement by CTCL. 11. Adequate renal function • Calculated creatinine clearance ≥ 30 mL/min using the Cockcroft-Gault formula. 12. If prior allogeneic hematopoietic stem cell transplant (HSCT), then must be free of graft-vs-host disease (GvHD) and receiving immunosuppressive therapy. 13. Women of childbearing potential (WOCBP) must have a negative pregnancy test. 14. WOCBP must agree to use effective contraception during the study and for 3 months after the last dose. 15. Male participants and their female partners of child bearing potential must be willing to use an appropriate method of contraception during the study and for 3 months after the last dose.

Exclusion criteria

<!-- --> 1. MF with limited disease (Stage IA) or central nervous system (CNS) disease 2. Concomitant corticosteroid use. (with the exception that topical steroid and oral prednisone are allowed at ≤ 20 mg/day, if patient has been on a stable dose for at least 2 weeks prior to 1st day of treatment) 3. Pregnant or breastfeeding 4. Active autoimmune disease or history deemed by the investigator to be clinically significant 5. Known human immunodeficiency virus (HIV) positivity; or active hepatitis B or C. 6. Active herpes simplex or herpes zoster. Those receiving prophylaxis for herpes and who started taking medication at least 30 days prior to the Screening Visit, and have no active signs of active infection, and whose last active infection was more than 6 months ago, may enter the study, and should continue to take the prescribed medication for the duration of the study.

Design outcomes

Primary

MeasureTime frameDescription
Overall response rate (ORR)12 monthsResponse to treatment will be assessed as the number and proportion of participants who achieve either a complete response (CR) or partial response (PR). The outcome is reported as numbers without dispersion. Clinical response will be assessed as follows. * CR: Complete disappearance of all clinical evidence of disease * PR: Decrease in size or amount of measurable disease lesions * Progressive disease (PD): Worsening of lesions; appearance of new lesions; or recurrence of lesions * Stable disease (SD): Disease status that is neither CR, PR, nor PD.

Secondary

MeasureTime frameDescription
Progression free survival (PFS)3 yearsProgression free survival (PFS) will be assessed as the amount of time from starting study treatment to progression of disease (PD) or death due to any cause.
Duration of response (DOR)3 yearsDuration of response (DOR) will be assessed in those participants who achieve either a complete response (CR) or partial response (PR), and with duration as time to progressive disease or the initiation of a non-study systemic therapy. * CR: Complete disappearance of all clinical evidence of disease * PR: Decrease in size or amount of measurable disease lesions * Progressive disease (PD): Worsening of lesions; appearance of new lesions; or recurrence of lesions * Stable disease (SD): Disease status that is neither CR, PR, nor PD.
Time-to-Next Significant Treatment (TTNT)3 yearsTime-to-next significant treatment (TTNT) will be assessed as the amount of time from starting study treatment through the initiation of any non study systemic therapy. The outcome will be reported as the median TTNT.
Treatment-related Adverse Events ≥ Grade 312 monthsToxicity will be assessed as adverse events that are severe or greater (≥ Grade 3), and possibly, probably, or definitely related to mogamulizumab or low dose total skin electron beam therapy (LD TSEBT), and occurring within 12 months of starting treatment. The outcome will be reported as the total number of qualifying events, a number without dispersion.
Proportion of Participants With ≥4, ≥6, and ≥12 Months of Response Duration (ORR4, ORR6, and ORR12)12 monthsORR4, ORR6, and ORR12 will be assessed as the proportions of patients who have at least 4, 6, or 12 months of response duration, respectively, among those who achieve either a complete response (CR) or partial response (PR). The outcomes will be reported as numbers without dispersion.
Patient reported Quality of Life (QoL)3 yearsThe Skindex 29 survey was used to evaluate the effect of skin conditions on participant's quality of life (QoL). Surveys were administered at the beginning of every treatment cycle and continuing through up to 3 years of treatment. The survey is a 30 item questionnaire with possible answers scored as 1 to 5, with a score of 1 indicating no negative effect, and a score of 5 indicating a constant (all the time) negative effect. Response ranges are from 30 to 150. The outcome will be reported as the median QoL score with standard deviation.

Countries

United States

Contacts

Primary ContactZainab Ahmed
zahmed01@stanford.edu650-387-4436

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026