CClinicalTrials.gg
TerminatedNCT00479765Updated Jun 22, 2022Results posted

A Phase 1 / 2 Dose Escalation Study of Locally-Administered OncoGel™ in Subjects With Recurrent Glioma

A Phase 1/2 interventional study of OncoGel (ReGel/Paclitaxel) in Glioblastoma Multiforme and Brain Neoplasms, sponsored by Boston Scientific Corporation. Terminated at 5 sites in United States. Open to participants aged 18 Years to 70 Years. Per ClinicalTrials.gov, last updated 2022-06-22.

Sponsored by Boston Scientific Corporation · Phase 1/2, Interventional, and Treatment

Why this study was terminated
Sponsor business decision, not based on safety or efficacy data
Phase
Phase 1/2
Study type
Interventional
Enrollment
4
Allocation
Not applicable
Ages
18 Years to 70 Years
Sex
All
01

Study summary

OncoGel™ is a new, experimental drug delivery system that allows the slow continuous release of paclitaxel (an approved intravenous anticancer drug), from a gel (ReGel™) over a long period of time. The gel will disappear in 4 to 6 weeks as it releases the paclitaxel.

The purpose of this study is to evaluate the safety and tolerability of OncoGel when placed into the tumor resection cavity in the brain following surgical removal of the tumor. Dose escalation is conducted by gradually increasing the amount of OncoGel placed in the resection cavity in small groups of patients, and watching the patients closely for side effects before moving to the next dose level. The study will also test whether OncoGel helps to prevent or delay the tumor from regrowing.

Read the detailed description

This study is for patients with recurrent glioblastoma multiforme. Because most recurrences are in the area of the original resection, local delivery of a chemotherapeutic agent may prevent or delay additional recurrences. Paclitaxel has demonstrated activity against 9L glioma tumor lines, but has poor central nervous system penetration after intravenous administration. OncoGel is a new formulation of paclitaxel in a bioerodible gel that can be administered directly to the brain, thereby bypassing the blood-brain barrier.

02

Conditions studied

  • Glioblastoma Multiforme
  • Brain Neoplasms

Keywords

  • glioblastoma multiforme
  • recurrent
  • Phase 1
  • Phase 2
  • Phase I
  • Phase II
  • brain
  • cancer
  • paclitaxel
  • intracranial
  • tumor
  • local
  • chemotherapy
  • brain tumor
  • brain cancer
  • glioma
  • OncoGel
03

In context

Glioblastoma

1,920 studies on the registry are indexed under Glioblastoma; 450 are open to participants now.

This study's enrollment of 4 is below the median of 36 across 1,618 interventional studies indexed under Glioblastoma.

Browse Glioblastoma studies →

Lead sponsor

Boston Scientific Corporation is the lead sponsor of 517 studies on the registry; 38 are open to participants now.

Of its 64 completed or terminated interventional studies of FDA-regulated products, 56 (88%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 70 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • At least 18 to less than 70 years of age
  • Radiological evidence on MRI of progressive recurrent malignant glioma that is unilateral, unifocal, supratentorial and of the minimum tumor volume as required per dose level assignment
  • Tumor must have a solid contrast enhancing component
  • Gross total resection >95% of the recurrence must be planned
  • Must have received prior conventional radiation therapy completed >4 weeks before Study Day 1 (ie, day of craniotomy and OncoGel administration)
  • Previous cytoreductive surgery or biopsy with pathologic diagnosis of glioblastoma multiforme
  • Diagnosis of glioma at the time of debulking surgery for recurrence (by frozen section or squash preparation)
  • Life expectancy > 2 months
  • KPS greater than or equal to 70
  • Using appropriate birth control, if female of child-bearing potential;
  • Able and willing to participate in the study by signing the informed consent document

Exclusion criteria

Exclusion Criteria:

  • Contrast-enhancing tumor crossing the midline
  • Multifocal or non-contiguous tumor resulting in multiple resection cavities
  • Evidence of tumor dissemination (ependymal, leptomeningeal)
  • Tumors that result in a lobectomy or after resection leave an insufficient residual cavity to receive the expected OncoGel volume
  • Expected communication between the ventricle and resection cavity that cannot be repaired
  • Involvement of primary sensorimotor cortex in the dominant hemisphere or within 1.5 cm of the optic chiasm, either optic nerve or any other cranial nerve
  • Significantly increased intracranial pressure
  • Received any type of stereotactic radiosurgery or brachytherapy with the exception of a stereotactic radiosurgery boost as part of the initial radiation therapy
  • History of seizures refractory to two or more anticonvulsant medications co-administered at therapeutic levels
  • Impaired organ function as evidenced by clinically significant laboratory parameters including but not limited to the following: Hepatic Status: Bilirubin >2.0 mg/dL; Aspartate transaminase (AST) >2.5 times the normal limit; Alanine aminotransferase (ALT) >2.5 times the normal limit. Hematopoietic Status: Absolute neutrophil count (ANC) \<1500mm3; Platelet count \<100,000/mm3; Hemoglobin \< 10 g/dL. Hemostatic: Prothrombin Time (PT) or INR above normal range; Partial Thromboplastin Time (PTT) above normal range; Bleeding Time outside normal range (if performed by hospital). Renal Status: Serum creatinine >2 mg/dL.
  • Contraindication to MRI
  • Receipt any chemotherapeutic agent within 28 days of Study Day 1 or nitrosourea within 6 weeks of Study Day 1
  • Received any intracerebral investigational agent
  • Receipt of another investigational drug or device within 28 days of the planned surgery
  • Known history of allergy to paclitaxel or any other component of OncoGel
  • Pregnant or lactating
  • Concurrent life-threatening disease
  • Any medical condition or other circumstance that, in the opinion of the Investigator, would make the subject unlikely or unable to successfully complete the study, or would interfere with analysis of study results
05

Study design

Phase
Phase 1 / Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
4 participants (actual)

Study arms

  • Experimental
    1

    OncoGel administered into remaining cavity after surgical resection. Each dose cohort will receive a different volume of OncoGel

    Drug: OncoGel (ReGel/Paclitaxel)

Interventions

  • DrugOncoGel (ReGel/Paclitaxel)

    OncoGel administered into cavity after surgical resection of recurrent glioma. Each subject will receive one dose of OncoGel on the day of surgical resection.

06

What researchers measure

Primary outcomes

  1. Occurence of Dose-limiting Toxicities (DLTs)

    any evidence or sign of a dose-limiting toxicity after administration to determine the maximum tolerated dose (MTD)

    Time frame: 8 weeks

07

Results

Posted May 15, 2014

Participant flow

Participant flow — Overall Study
MilestoneOncoGel
Started4
Completed0
Not completed4
Withdrew: Study terminated4

Outcome measures

PrimaryOccurence of Dose-limiting Toxicities (DLTs)

any evidence or sign of a dose-limiting toxicity after administration to determine the maximum tolerated dose (MTD)

Time frame:
8 weeks
Reported as:
Number · dose limiting toxicities
Occurence of Dose-limiting Toxicities (DLTs)
dose limiting toxicitiesOncoGel 5mL
Occurence of Dose-limiting Toxicities (DLTs)0

Adverse events

Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
OncoGel 5mL—2/4 (50%)0/4 (0%)
Most frequent serious events
Most frequent serious events
EventOncoGel 5mL
subdural hematomaVascular disorders2/4

Baseline characteristics

Four subjects were dosed with 5% Oncogel prior to study termination.

Age, Continuous
Age, Continuous(years)OncoGel 5mL
Mean60 (46 to 73)
Sex: Female, Male
Sex: Female, Male(Participants)OncoGel 5mL
Female0
Male4
08

Study locations

5 sites
  • The University of Chicago Brain Tumor Center
    Chicago, Illinois 60637, United States
  • The Johns Hopkins University
    Baltimore, Maryland 21231, United States
  • University of Rochester Medical Center
    Rochester, New York 14642, United States
  • University of North Carolina at Chapel Hill
    Chapel Hill, North Carolina 27599, United States
  • Vanderbilt University Medical Center
    Nashville, Tennessee 37212, United States
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jun 22, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT00479765
Lead sponsor
Boston Scientific Corporation
Responsible party
Sponsor
First posted
May 28, 2007
Start date
Mar 2007
Primary completion
Oct 2009
Completion
Oct 2009
Results posted
May 15, 2014
Last update
Jun 22, 2022

Study contacts

Maciej S Lesniak, MD
principal investigator · University of Chicago

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

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This study is terminated, as verified in Jun 2022. You cannot join it, but the record below documents what was studied.

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