Topical treatment for cutaneous T-cell lymphoma using HyBryte

A Confirmatory Phase 3 Multicenter, Randomized, Double-Blind, Placebo-Controlled Study of the Efficacy of Topical HyBryte™ (Hypericin Sodium) and Visible-Light Activation for the Treatment of Cutaneous T-Cell Lymphoma (CTCL)

Phase 3 Interventional Soligenix · NCT06470451

This study is testing if a new gel called HyBryte can help people with a type of skin cancer called cutaneous T-cell lymphoma feel better when used with light treatment.

Quick facts

PhasePhase 3
Study typeInterventional
Enrollment80 (estimated)
Ages18 Years and up
SexAll
SponsorSoligenix Industry-sponsored
Drugs / interventionsradiation
Locations17 sites (Phoenix, Arizona and 16 other locations)
Trial IDNCT06470451 on ClinicalTrials.gov

What this trial studies

This Phase 3 study evaluates the effectiveness of HyBryte, a topical photosensitizing agent, in treating patients with patch/plaque phase cutaneous T-cell lymphoma (CTCL). Participants will apply either HyBryte gel or a placebo gel twice weekly for 18 weeks, followed by exposure to visible light. The study aims to compare treatment responses between the HyBryte and placebo groups, with a focus on safety and efficacy. Patients will be monitored for treatment response and safety over a total of 12 weeks after the last light session.

Who should consider this trial

Good fit: Ideal candidates include patients diagnosed with Stage IA, IB, or IIA cutaneous T-cell lymphoma who have at least three evaluable lesions.

Not a fit: Patients with a history of sun hypersensitivity or certain photosensitive conditions may not benefit from this treatment.

Why it matters

Potential benefit: If successful, this treatment could provide a new effective option for patients suffering from cutaneous T-cell lymphoma.

How similar studies have performed: Other studies using photosensitizing agents for similar conditions have shown promising results, indicating potential for success in this approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients must have a clinical diagnosis of cutaneous T-cell lymphoma (CTCL), Stage IA, Stage IB, or Stage IIA.
* Patients with a minimum of three (3) evaluable, discrete lesions.
* Patients willing to follow the clinical protocol and voluntarily give their written informed consent.
* Female patients not pregnant or nursing and willing to undergo a pregnancy test within 30 days prior to treatment initiation.

Exclusion Criteria:

* History of sun hypersensitivity and photosensitive dermatoses including porphyria, systemic lupus erythematosus, Sjögren's syndrome, xeroderma pigmentosum, polymorphous light eruptions, or radiation therapy within 30 days of enrolling.
* History of allergy or hypersensitivity to any of the components of HyBryte.
* A Screening ECG with a QT interval \>470 ms (corrected for heart rate using the Fridericia's formula).
* All women of childbearing potential (WOCBP) and males with female partners who are WOCBP not willing to use effective contraception.
* Patients receiving topical steroids or other topical treatments (eg, nitrogen mustard) on treated lesions for CTCL within 2 weeks of enrollment.
* Patients receiving systemic steroids, psoralen UVA radiation therapy (PUVA), narrow band UVB light therapy (NB-UVB) or carmustine (BCNU) or other systemic therapies for CTCL within 4 weeks of enrollment.
* Patients who have received electron beam irradiation within 3 months of enrollment.
* Patients with a history of significant systemic immunosuppression.
* Patients taking other investigational drugs or drugs of abuse within 30 days of entry into this study.
* Patients whose condition is spontaneously improving.
* Patients with tumor stage or erythrodermic CTCL (stages IIB-IV).
* Patients with extensive skin disease (\>30% body surface area) who would be, in the judgement of the Principal Investigator, candidates for systemic treatment.
* Patient has any condition that, in the judgment of the PI, is likely to interfere with participation in the study.
* Prior participation in the current study.

Where this trial is running

Phoenix, Arizona and 16 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions CTCL/ Mycosis FungoidesCTCLMycosis FungoidesCutaneous T Cell Lymphoma
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.