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HSPPC-96 Vaccine With Temozolomide in Patients With Newly Diagnosed GBM

PHASE 2, Multi-center, Single Arm Investigation of HSPPC-96 Vaccine With Temozolomide in Patients With Newly Diagnosed Glioblastoma Multiforme

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00905060
Acronym
HeatShock
Enrollment
70
Registered
2009-05-20
Start date
2009-06-29
Completion date
2014-06-03
Last updated
2021-03-24

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

Conditions

Brain and Central Nervous System Tumors

Keywords

Newly Diagnosed Glioblastoma Multiforme, vaccine

Brief summary

This phase II trial studies the side effects and how well HSPPC-96 (vitespen) and temozolomide work in treating patients with newly diagnosed glioblastoma multiforme. Vaccines made from a person's tumor cells and heat shock protein peptide may help the body to build an effective immune response to kill tumor cells. Drugs used in chemotherapy, such as temozolomide, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Giving HSPPC-96 (vitespen) together with temozolomide may kill more tumor cells.

Detailed description

PRIMARY OBJECTIVES: I. To evaluate the safety profile of HSPPC-96 (vitespen) administered concurrently with temozolomide in patients with newly diagnosed glioblastoma multiforme (GBM). II. To evaluate survival in patients treated with an autologous tumor-derived heat shock protein peptide-complex (HSPPC-96) with concurrent temozolomide. SECONDARY OBJECTIVES: I. To evaluate progression-free survival (PFS) from date of surgical resection. II. To evaluate the immunologic response to vaccine treatment in a subset of evaluable patients. OUTLINE: Approximately 2-5 weeks after standard radiation therapy and temozolomide completion, patients receive vitespen intradermally (ID) on days 1, 8, 15, and 22. Beginning 2 weeks after the 4th dose of vitespen, patients receive a 5th dose of vitespen ID and maintenance temozolomide orally (PO) on days 1-5 (of 28 day courses). On day 21 of course 1, patients receive the 6th dose of vitespen ID and continue vaccinations monthly. Courses repeat every 28 days in the absence of vaccine depletion, disease progression, or unacceptable toxicity. After completion of study treatment, patients are followed up every 12 weeks.

Interventions

BIOLOGICALHSPPC-96

Autologous tumor-derived heat shock protein peptide-complex (HSPPC-96) administered at 25 μg per dose injected intradermally once weekly for 4 consecutive weeks and monthly following standard treatment with radiation and temozolomide.

DRUGTemozolomide

Maintenance temozolomide treatment is given 2 weeks after administration of the fourth vaccine at an initial dose of 150 mg per square meter (mg/m2) for 5 consecutive days in a 28-day cycle. The dose was increased to 200 mg/m2 for 5 days in subsequent cycles.

Patients will undergo standard surgical resection of intracranial tumor

Sponsors

Agenus Inc.
CollaboratorINDUSTRY
University of California, San Francisco
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

Pre-surgery tissue acquisition Inclusion criteria 1. Age \> or equal to 18 years old 2. Life expectancy of greater than 12 weeks. 3. Able to read and understand the informed consent document; must sign the informed consent 4. Must have suspected diagnosis of Glioblastoma Multiforme with a surgical intent to resect at least 90% of enhancing disease 5. Must be eligible for post-surgical treatment with radiotherapy and temozolomide Post-radiation therapy/pre-vaccine eligibility Inclusion criteria 1. Agree to use contraception or abstain from sexual activity from the time of consent through 1 month after the end of study drug administration 2. Negative serum pregnancy test for female patients of childbearing potential 3. Patients with histologically proven, non-progressive glioblastoma multiforme (GBM) 4. Patient must have received standard of care radiation and temozolomide therapy 5. Must have undergone a at least a 90% resection (determined by the principal investigator (PI)) measured by postoperative magnetic resonance imaging (MRI) scan, T1-weighted contrast scan, or CT scan if clinically indicated, performed within 72 hours after surgery 6. All radiotherapy must be discontinued at least 2 weeks and no more than 5 weeks prior to the first planned vaccine administration 7. Availability of at least 4 doses of vaccine (at least 4 vials for clinical administration produced from the tumor provided) 8. Karnofsky functional status rating \> or equal to 70 9. Adequate bone marrow function including the absence of lymphopenia (ANC \> 1,500/ mm3; absolute lymphocyte count (ALC) \> 500/mm3 ; platelet count \>100,000/mm3), adequate liver function (serum glutamic oxaloacetic transaminase/ aspartate aminotransferase (AST), alanine amino transferase (ALT), and alkaline phosphatase \<2.5 times institutional upper limit of normals \[IULNs\] and bilirubin (total) \<1.5 mg\*IULN), and adequate renal function (BUN and creatinine \<1.5 times IULNs

Exclusion criteria

Pre-surgery tissue acquisition 1. Current diagnosis of Human Immunodeficiency Virus (HIV testing is not required per protocol) 2. Any prior diagnosis of any other cancer or other concurrent malignancy, with the exception of adequately treated nonmetastatic in situ carcinoma of the uterine cervix or nonmetastatic nonmelanoma skin cancer unless in complete remission and off all therapy for that disease for a minimum of 5 years 3. Any systemic autoimmune disease (e.g., Hashimoto's thyroiditis) and/or any history of primary or secondary immunodeficiency 4. Any prior therapy for glioma 5. Planned use or current use of other investigational therapy for the treatment of glioma Post-radiation therapy/pre-vaccine Exclusion 1. Inability to comply with study-related procedures 2. Prior diagnosis of any other cancer or other concurrent malignancy, with the exception of adequately treated nonmetastatic in situ carcinoma of the uterine cervix or nonmetastatic nonmelanoma skin cancer unless in complete remission and off all therapy for that disease for a minimum of 5 years 3. Current or active use of chemotherapy (except temozolomide) or immune therapy 4. Contrast MRI findings (or CT scan if MRI is clinically contraindicated) consistent with progression per protocol defined modified Response assessment in neuro-oncology criteria (RANO) criteria. Progression prior to vaccination as determined by the Principal Investigator 5. Patients with active uncontrolled infection 6. Evidence of bleeding diathesis 7. Unstable or severe intercurrent medical conditions 8. Female patients who are pregnant or breastfeeding

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Treatment-Related Adverse Events of Any GradeUp to 3 years
Median Overall SurvivalUp to 3 yearsOverall survival is defined as the time from surgical resection to death of any cause.

Secondary

MeasureTime frameDescription
Median Progression Free Survival (PFS)Up to 3 yearsPFS is defined as the duration of progression-free survival from the time from resection until either documented disease progression or death
Median PD-L1 Positivity in Circulating Myeloid CellsUp to 53 WeeksCirculating myeloid cells (CD45+/CD11b+) obtained from patients at the time of surgery were analyzed for PD-L1 expression to determine the percent of myeloid cells positive for PD-L1 (cut off for positivity determined relative to Fluorescence Minus One (FMO) and isotype control).

Countries

United States

Participant flow

Recruitment details

Recruitment took place between June 29, 2009 and April 2012 for participants scheduled for gross total resection of recurrent Glioblastoma multiforme (GBM) across 8 sites

Participants by arm

ArmCount
Protein Peptide-Complex (HSPPC-96)
Patients will receive 4 weekly injections of HSPPC-96 followed by a 5th vaccine injection on the same day of the start of maintenance temozolomide administered 2 weeks (+ 4 days) following vaccine administration #4 on the same day of the start of maintenance temozolomide (Day 36). Monthly vaccine injections will then begin on day 21 (+/- 7 days) of the first 28 day temozolomide cycle (Day 56 of the study), 3 weeks following vaccine administration #5 and will continue every 28 days until depletion of vaccine or progression. HSPPC-96: Autologous tumor-derived heat shock protein peptide-complex (HSPPC-96) administered at 25 μg per dose injected intradermally once weekly for 4 consecutive weeks and monthly following standard treatment with radiation and temozolomide.
70
Total70

Baseline characteristics

CharacteristicProtein Peptide-Complex (HSPPC-96)
Age, Customized
30-39 years old
2 Participants
Age, Customized
40-49 years old
13 Participants
Age, Customized
50-59 years old
19 Participants
Age, Customized
60-69 years old
25 Participants
Age, Customized
70-79 years old
11 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
2 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
67 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants
Median Number of Vaccination Doses Administered9 vaccine injections
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
3 Participants
Race (NIH/OMB)
Black or African American
1 Participants
Race (NIH/OMB)
More than one race
1 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
65 Participants
Region of Enrollment
United States
70 participants
Sex: Female, Male
Female
32 Participants
Sex: Female, Male
Male
38 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
21 / 46
other
Total, other adverse events
44 / 46
serious
Total, serious adverse events
10 / 46

Outcome results

Primary

Median Overall Survival

Overall survival is defined as the time from surgical resection to death of any cause.

Time frame: Up to 3 years

ArmMeasureValue (MEDIAN)
Protein Peptide-Complex (HSPPC-96)Median Overall Survival23.8 months
Primary

Number of Participants With Treatment-Related Adverse Events of Any Grade

Time frame: Up to 3 years

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Protein Peptide-Complex (HSPPC-96)Number of Participants With Treatment-Related Adverse Events of Any Grade34 Participants
Secondary

Median PD-L1 Positivity in Circulating Myeloid Cells

Circulating myeloid cells (CD45+/CD11b+) obtained from patients at the time of surgery were analyzed for PD-L1 expression to determine the percent of myeloid cells positive for PD-L1 (cut off for positivity determined relative to Fluorescence Minus One (FMO) and isotype control).

Time frame: Up to 53 Weeks

Population: Peripheral blood was available for analysis from 32 vaccine-treated patients

ArmMeasureValue (MEDIAN)
Protein Peptide-Complex (HSPPC-96)Median PD-L1 Positivity in Circulating Myeloid Cells54.5 percentage of PD-L1 positivity
Secondary

Median Progression Free Survival (PFS)

PFS is defined as the duration of progression-free survival from the time from resection until either documented disease progression or death

Time frame: Up to 3 years

ArmMeasureValue (MEDIAN)
Protein Peptide-Complex (HSPPC-96)Median Progression Free Survival (PFS)18 months

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