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SGX301

Phase 3

Cutaneous T-Cell Lymphoma | Small molecule | Dermatology |Soligenix, Inc.|Last Updated: Apr 15, 2022

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials1
Total Enrollment169

FDA Designations

No designations recorded

Clinical trial landscape

SGX301 · 1 trial · 1 indication

Phase 3 1
NCT02448381FLASH [Fluorescent Light Activated Synthetic Hypericin] Clinical Study: Topical SGX301 (Synthetic Hypericin) for the Treatment of Cutaneous T-Cell Lymphoma (Mycosis Fungoides)Cutaneous T-Cell Lymphoma
COMPLETED169 Analytics
PHASE3COMPLETED
FLASH [Fluorescent Light Activated Synthetic Hypericin] Clinical Study: Topical SGX301 (Synthetic Hypericin) for the Treatment of Cutaneous T-Cell Lymphoma (Mycosis Fungoides)
Cutaneous T-Cell LymphomaUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of Responders and Non-Responders With a Treatment Response in 3 Treated Lesions as Defined as a ≥50% Improvement in the Composite Assessment of Index Lesion Disease Severity (CAILS) Score When Compared to Patients Receiving Placebo
8 weeks

The percentage of patients achieving a treatment response in each of the 2 treatment groups. A treatment response was defined as a ≥50% improvement in CAILS score at Week 8 when compared to the CAILS score at baseline. The Composite Assessment of Index Lesion Disease Severity (CAILS) score measures: Erythema (or redness) on a scale of 0 (no redness) to 8 (very red), Scaling on a scale of 0 (no scaling) to 8 (all of the lesion is covered by a very rough surface), Plaque Elevation on a scale of 0 (no evidence of plaque above normal skin level) to 3 (plaque shows marked elevation above normal skin level) and Surface Area on a scale of 0 (no lesion/surface area is 0 cm\^2) to 18 (the lesion is larger than 300 cm\^2). A lower score means a better outcome. The overall CAILS score was calculated by adding the total score as described above for each of the 3 lesions. The overall CAILS score has a range of 0 to 111. A lower score means a better outcome.

Secondary Endpoints

Number of Responders and Non-Responders With a Treatment Response in 3 Treated Lesions as Measured by the Composite Assessment of Index Lesion Disease Severity (CAILS) Score (Cycle 1 and 2 SGX301 vs Cycle 1 Placebo)
16 weeks
Number of Responders and Non-Responders With a Treatment Response of 3 Treated Lesions as Measured by the Composite Assessment of Index Lesion Disease Severity (CAILS) Score in Patients Who Received 3 Cycles of SGX301
24 weeks
Patch Lesion Response Rates With Extended Treatment (Cycle 1 & 2 SGX301 vs Cycle 1 Placebo)
16 weeks
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
SGX301ACTIVE_COMPARATORThree treatment cycles, each six (6) weeks followed by a two (2) week rest period. Treatment uses 0.25% SGX301 in USP Hydrophilic Ointment (or placebo) applied twice per week followed by fluorescent light therapy. Cycle 1: Patients randomized 2:1 to active/placebo will have three (3) index lesions treated and evaluated. Cycle 2: All patients will have three (3) index lesions treated and evaluated with active SGX301 ointment. Cycle 3: All patients will be given the opportunity to enter an open-label cycle of active SGX301 ointment treatment for all lesions (index and non-index).
PlaceboPLACEBO_COMPARATORPlacebo ointment is indistinguishable from ointment containing active SGX301 and is only used in Cycle 1. Treatment paradigm (ointment application and fluorescent light therapy) is identical.

Interventions

NameTypeDescription
SGX301 (synthetic hypericin)DRUG0.25% SGX301 in USP Hydrophilic Ointment applied twice per week, covered by opaque bandage for 12-24 hours, then treated with an initial dose of 5 J/cm\^2 fluorescent light.
PlaceboDRUGUSP Hydrophilic Ointment applied twice per week, covered by opaque bandage for 12-24 hours, then treated with an initial dose of 5 J/cm\^2 fluorescent light.
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites33

Inclusion Criteria: * Subjects must have a clinical diagnosis of CTCL (mycosis fungoides), Stage IA, Stage IB, or Stage IIA. * Subjects must have a minimum of three (3) evaluable, discrete lesions. * Subjects must be willing to refrain from sunbathing for the duration of the study. Exclusion Crite...

Countries:United States
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Competitive Landscape -Cutaneous T-Cell Lymphoma 3 trials

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Frequently asked questions about SGX301

What is SGX301 used for?

SGX301 is an investigational small molecule being developed for the treatment of Cutaneous T-Cell Lymphoma, specifically mycosis fungoides. It is a topical synthetic hypericin formulation designed for use in this dermatologic condition. The drug is currently in Phase 3 clinical development and is not yet approved by regulatory authorities.

Who makes SGX301?

SGX301 is being developed by Soligenix, Inc., a biopharmaceutical company. Soligenix is publicly traded on the stock market under the ticker symbol SNGX. The company is conducting clinical trials to evaluate the safety and efficacy of SGX301 for the treatment of Cutaneous T-Cell Lymphoma.

What phase is SGX301 in?

SGX301 is in Phase 3 clinical development. It has completed one Phase 3 trial, which was a randomized, double-blind, placebo-controlled study. The drug remains investigational and has not received FDA approval. Its status indicates it is still undergoing clinical evaluation for the treatment of Cutaneous T-Cell Lymphoma.

What clinical trials is SGX301 in?

SGX301 has been studied in a Phase 3 clinical trial with the identifier NCT02448381. This trial, titled FLASH, evaluated topical SGX301 for the treatment of Cutaneous T-Cell Lymphoma. The study enrolled 169 participants in the United States and has been completed. It was a randomized, double-blind, placebo-controlled trial.

Is SGX301 FDA approved?

SGX301 is not FDA approved. It is an investigational drug currently in Phase 3 clinical development. The completed Phase 3 trial, NCT02448381, evaluated its use in Cutaneous T-Cell Lymphoma, but regulatory approval has not been granted. The drug remains under investigation for this indication.