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A Dose-escalation Clinical Study of Intraoperative Photodynamic Therapy of Glioblastoma

An Interventional, Multicenter, and International Phase 1/2, Light-dose-escalation Study to Investigate the Safety and Feasibility of Intraoperative Photodynamic Therapy (PDT) With Pentalafen® Drug and Heliance® Solution Device in Male and Female Patients 18 to 75 Years of Age With Grade IV Glioblastoma.

Status
Active, not recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05736406
Enrollment
12
Registered
2023-02-21
Start date
2024-02-20
Completion date
2026-08-01
Last updated
2026-05-22

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

Conditions

Primary Glioblastoma

Keywords

Glioma, Glioblastoma, High Grade Glioma

Brief summary

The primary objective of this clinical trial is to determine the safety and tolerability of two doses of light in intraoperative PDT added to standard of care; temozolomide-based chemotherapy in male and female patients aged 18 to 75 with newly diagnosed glioblastoma. This treatment will be carried out in addition to the maximal surgical resection. Data collected during this trial will be used to design the upcoming pivotal study . The study will utilize an independent Data and Safety Monitoring Board (iDSMB) that will review safety data to allow dose escalation.

Detailed description

This study is a non randomized, open label, multicentercenter , phase 1/2 trial with a sequential enrollment in a 3+3 dose escalation design to establish the maximal tolerated dose of light (MTD). The dose of light will be escalated in successive cohorts of patients until at least 1 patient experiences a dose-limiting toxicity (DLT). A DLT is defined as any grade ≥ 3 Adverse Event (AE), or any relevant grade 2 AE of Central Nervous System or any Serious Adverse Events (SAEs) possibly, probably or definitively related to the intraoperative PDT (i.e., 5-aminolevulinic acid hydrochloride (5-ALA HCl) administration + brain cavity illumination), for which the onset date is within 28 days after the procedure, and where conservative therapy fails and surgical is required, according to the NCI Common Terminology Criteria for Adverse Events (CTCAE) version 5.0. After dose escalation patient will be followed in the standard of care until visit at 6 months to evaluate the progression free survival.

Interventions

COMBINATION_PRODUCT5-ALA HCl intraoperative Photodynamic Therapy (PDT) at 200 J/cm^2

5-ALA HCl, 20 mg/kg, is orally administered 4-6 hours before the surgery. Then after resection of tumor tissue is judged maximal, the intraoperative PDT procedure is initiated at 200 J/cm\^2.

COMBINATION_PRODUCT5-ALA HCl intraoperative Photodynamic Therapy (PDT) at 400 J/cm^2

5-ALA HCl, 20 mg/kg, is orally administered 4-6 hours before the surgery. Then after resection of tumor tissue is judged maximal, the intraoperative PDT procedure is initiated at 400 J/cm\^2.

Sponsors

Hemerion Therapeutics
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

3+3 model.The dose of light will be escalated in successive cohorts of patients. The starting dose is at 200 J/cm2. Enroll 3 patients at the first dose level and proceed to the next higher dose level with a cohort of 3 patients until at least 1 patient experiences a dose-limiting toxicity (DLT).

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

I01. Males or females must be between 18, or legal age of consent, and 75 years of age (both included) at the time of signing informed consent. I02. Signed informed consent which includes compliance with requirements and restrictions listed in the informed consent. I03. Newly diagnosed GBM, presumed on the basis of clinical and MRI criteria (intra-axial brain tumor with peripheral rim contrast enhancement). I04. Karnofsky Performance Score ≥70 I05. Eligible for surgery. I06. Amenable to maximal tumor resection based on MRI. I07. Planned to receive SOC (i.e., Stupp Protocol) treatment after surgery. I08. Ability to take oral medications. I09. Tumor eligible to PDT procedure as validated by both investigator and sponsor based on pre-operative MRI data

Exclusion criteria

1.Medical conditions E01. 1. Patient with bifocal or multifocal disease, assessed on MR1I T1Gd enhanced. 2. Patient with tumor of deep location such as tumor involving the corpus callosum, the basal ganglia, the brain stem, or tumor involving the midline as assessed on MRI. 3. Patient with prior brain surgery other than stereotactic biopsy E02. Patient with Lynch syndrome E03. Patient with Li-Fraumeni syndrome E04. Debilitating cardiopulmonary disease, unstable Type 1 or Type 2 diabetes (treated or not) E05. History or current condition of another malignancy (excluding basal cell carcinoma, or E05. carcinoma in-situ) unless treated and off all active therapy for more than 5 years E06. Clinically significant abnormal ECG results, including a corrected QT interval QTc \> 480 ms E07. Creatinine clearance \< 60 mL/min E08. Severe hepatic impairment (bilirubin \> 1.5 x the upper limit of normal \[ULN\] or alkaline phosphatase or transaminases (AST, ALT) \> 2.5 x ULN) E09. Known allergic reactions to silicone E10. Known allergic reactions or hypersensitivity to egg, soya, or peanut proteins. E11. Febrile illness Contraindication E12. Contraindication to 5-ALA HCl administration, including: 1. Porphyria 2. Taking photosensitizing drugs 24 hours before and 14 days after the administration of Pentalafen® including but not limited to: St. John's wort, griseofulvin, thiazide diuretics, sulfonylureas, phenothiazines, sulphonamides, quinolones and tetracyclines, and topical preparations containing ALA (See Section 6.10) 3. Inability to suspend a long-term hepatotoxic treatment (such as, but not limited to diclofenac, fenofibrate, carbamazepine) for 24 hours after 5-ALA HCl intake E13. Contraindication to MRI examination (e.g., MRI-incompatible pacemaker) E14. Treatment with another investigational drug or intervention within 30 days prior to or during the entire study

Design outcomes

Primary

MeasureTime frameDescription
Maximal Tolerated Dose (MDT) of light for Photodynamic Therapy4 weeks after interventionEvaluation of Dose Limiting Toxicities (DLT) to define MDT

Secondary

MeasureTime frameDescription
Treatment response / Progression-free survival (PFS)Up to 6 months after interventionMRI imaging and RANO criteria
Number of Adverse Events and Serious Adverse Events (Safety and Tolerability)6 monthsGlobal clinical safety data of 5-ALA HCl Intraoperative PDT

Countries

France, United States

Contacts

PRINCIPAL_INVESTIGATORJan Drappatz, MD

UPMC Presbyterian Shadyside Hospital, Pittsburgh, PA

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 23, 2026