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Malignant Neoplasms BrainPhase 1REGULATeNCT00626483

Basiliximab in Treating Patients With Newly Diagnosed Glioblastoma Multiforme Undergoing Targeted Immunotherapy and Temozolomide-Caused Lymphopenia

A Phase 1 study testing RNA-loaded dendritic cell vaccine and basiliximab in people with Malignant Neoplasms Brain, run by Gary Archer Ph.D. at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

RATIONALE: Monoclonal antibodies, such as basiliximab, can block tumor growth in different ways. Some block the ability of tumor cells to grow and spread. Others find tumor cells and help kill them or carry tumor-killing substances to them. Read more about this study

Who is it for?
Ages 18 to 120 years
Conditions the study is for
Malignant Neoplasms Brain
What is being tested?
RNA-loaded dendritic cell vaccine and basiliximab
Type of treatment
Vaccines
Could I receive a placebo?
No, everyone receives an active treatment
How many people
34 participants
Where
1 siteUnited States
Study dates
24 Apr 2007to 6 Jul 2016
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 120 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

DISEASE CHARACTERISTICS:

  • Histopathologically confirmed glioblastoma multiforme
  • WHO grade IV disease
  • Must undergo leukapheresis ≤ 4 weeks after definitive resection
  • Residual radiographic contrast enhancement on post-resection CT scan or MRI must not exceed 1 cm in diameter in two perpendicular axial planes
  • Patients with evidence of contrast enhancement exceeding 1 cm in diameter in two perpendicular axial planes after radiation will not be a candidate for the vaccine despite being previously enrolled and will be removed from the study and replaced
  • No radiographic or cytologic evidence of leptomeningeal or multicentric disease

PATIENT CHARACTERISTICS:

  • Karnofsky performance status 80-100%
  • Curran Group status I-IV
  • Not pregnant or nursing
  • Negative pregnancy test
  • Fertile patients must use effective contraception
  • No active infection requiring treatment
  • No unexplained febrile (>101.5°F) illness
  • No known immunosuppressive disease or known HIV infection
  • No unstable or severe intercurrent medical conditions such as severe heart or lung disease
  • No allergy to temozolomide (TMZ) or otherwise unable to tolerate TMZ for reasons other than lymphopenia
  • Patients who are found after enrollment to be unable to tolerate TMZ will not be a candidate for the vaccine despite being previously enrolled and will be removed from the study and replaced
  • No prior allergic reaction to daclizumab or one of its components

PRIOR CONCURRENT THERAPY:

  • See Disease Characteristics
  • No prior daclizumab
  • No other prior conventional therapeutic intervention except for steroids, radiation, or temozolomide
  • No prior inguinal lymph node dissection, radiosurgery, brachytherapy, or radiolabeled monoclonal antibodies
  • No concurrent corticosteroids, with the exception of nasal or inhaled steroids, at a dose above physiologic levels
  • Patients requiring an increase in corticosteroids, with the exception of nasal or inhaled steroids, such that at the time of first vaccination they require a dose above physiologic levels, will be removed from the study and replaced (physiologic dose will be defined as < 2 mg of dexamethasone/day)
  • Once vaccinations have been initiated, if patients subsequently require increased steroids, they will still be permitted to remain on the study, but every effort will be made to minimize steroid requirements
  • No prior allogeneic solid organ transplantation

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Duke University Medical Center

    Durham, North Carolina, 27710

Other trials in United States

About this study

Official title: REGULATory T-Cell Inhibition With Basiliximab (Simulect®) During Recovery From Therapeutic Temozolomide-induced Lymphopenia During Antitumor Immunotherapy Targeted Against Cytomegalovirus in Patients With Newly-Diagnosed Glioblastoma Multiforme

RATIONALE: Monoclonal antibodies, such as basiliximab, can block tumor growth in different ways. Some block the ability of tumor cells to grow and spread. Others find tumor cells and help kill them or carry tumor-killing substances to them. Drugs used in chemotherapy, such as temozolomide, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Radiation therapy uses high-energy x-rays to kill tumor cells. Vaccines may help the body build an effective immune response to kill tumor cells. Giving these treatments together may kill more tumor cells. Granulocyte Macrophage-Colony Stimulating Factor (GM-CSF) is a powerful adjuvant capable of stimulating macrophage function, inducing proliferation and maturation of DCs, and is able to enhance T-lymphocyte stimulatory function. Intradermal administration of GM-CSF enhances the immunization efficacy at the site of administration

PURPOSE: This clinical trial is studying how well basiliximab works in treating patients with newly diagnosed glioblastoma multiforme and temozolomide-caused lymphopenia who are undergoing targeted immunotherapy.

Read the detailed description

OBJECTIVES:

Primary

  • To determine if basiliximab inhibits the functional and numeric recovery of T-regulatory cells after therapeutic temozolomide (TMZ)-induced lymphopenia in the context of vaccinating adult patients with newly diagnosed glioblastoma multiforme (GBM) using cytomegalovirus (CMV) pp65-lysosomal-associated membrane protein (LAMP) mRNA-loaded dendritic cells (DCs) with GM-CSF in patients who are seropositive and seronegative for CMV.

Secondary

  • To evaluate the safety of basiliximab in these patients.
  • To determine if basiliximab enhances the magnitude or character of pp65-specific vaccine-induced cellular or humoral immune responses, inhibits or enhances activation-induced cell death, or induces immunologic or clinical evidence of autoimmunity.
  • To determine if basiliximab alters the phenotype (CD56 expression), cytokine secretion profile, or cytotoxicity of CD3-CD56+ natural killer cells.
  • To determine if basiliximab in addition to vaccination extends progression-free survival compared to historical cohorts.
  • To characterize immunologic cell infiltrate in recurrent tumors and seek evidence of antigen-escape outgrowth.

OUTLINE: Patients undergo leukapheresis for generation of dendritic cells (DCs) after resection. After initial leukapheresis, all patients undergo stereotactic radiotherapy (RT) on days 1-5 and concurrent temozolomide (TMZ) IV on days 1-7 for 6.5 weeks in the absence of disease progression or unacceptable toxicity.

Beginning 3 weeks after completion of RT, patients receive TMZ IV on days 1-5. Treatment repeats every 28 days for 12 courses in the absence of disease progression or unacceptable toxicity. On day 14 ± 2 days of this first cycle of TMZ, patients will receive basiliximab, which is 7 days (± 2 days) before DC vaccine #1 and 2 weeks later, a second dose of basiliximab will be given, which is also 7 days before vaccine # 2.

All patients will undergo leukapheresis again for DC generation and immunologic monitoring with specific assessment of baseline antigen-specific cellular and humoral immune responses 3 + 1 weeks after vaccine #3.

Patients will then be treated monthly with TMZ cycles for a total of 12 cycles . On day 21 ± 2 days of each TMZ cycle, patients will receive monthly vaccines for a total of 8 vaccines. Patients will have blood drawn for immunologic monitoring before basiliximab infusions and prior to vaccines 1, 2, 3, and prior to monthly vaccines and then bimonthly through TMZ cycles without receiving any other prescribed antitumor therapy until progression.

After completion of study treatment, patients are followed every 2 months.

Being tested
RNA-loaded dendritic cell vaccine, basiliximab
Keywords
adult giant cell glioblastoma, adult gliosarcoma
Medical subject headings
Brain Neoplasms, Glioblastoma, Gliosarcoma

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • RNA-loaded dendritic cell vaccineBiological

    Only one dose of DCs (2 x 10^7) is being assessed.

  • basiliximabDrug

    Basiliximab 20 mg and 40 mg is being assessed depending on dose-cohort enrollment.

Study groups in NCT00626483
Study groupRoleWhat they receive
CMV pp65-LAMP mRNA-loaded DC vaccinationExperimentalBasiliximab will be safe in combination with CMV pp65-LAMP mRNA-loaded DC vaccination and GM-CSF
Receives: Biological: RNA-loaded dendritic cell vaccine; Drug: basiliximab

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Functional capacity of CD4+,CD25+, CD127- T-regulatory cells

    Functional and quantitative recovery of regulatory T cells is measured during and following study treatment and at the time of tumor progression, which is estimated to be about 26 months from time of diagnosis based on expected progression free survival rates with standard of care therapy.

    Measured: Approximately 26 months at time of brain tumor progression

Secondary outcomes (5)
  1. Safety of CMV pulsed pp65 DC vaccines

    Number of patients experiencing WHO Grade 3, 4, and 5 adverse events considered possibly, probably, or definitely related to study treatment

    Measured: 2 months following last vaccine administration

  2. Effect of basilixiumab on pp65 vaccine

    Determine if basiliximab enhances the magnitude or character of pp65-specific vaccine-induced cellular or humoral immune responses, inhibits or enhances activation-induced cell death, or induces immunologic or clinical evidence of autoimmunity

    Measured: 1 year

  3. Effect of basilixiumab on immune profiles

    Determine if basiliximab alters the phenotype (CD56-expression), cytokine secretion profile, or cytotoxicity of CD3-CD56+ NK cells

    Measured: 1 year

  4. Progression-free survival (PFS)

    Time in months from the start of study treatment to the date of first progression according to RANO criteria, or to death due to any cause. Patients alive who had not progressed as of the last follow-up had PFS censored at the last follow-up date. Median PFS was estimated using a Kaplan-Meier curve.

    Measured: 1 year

  5. Characterize immune cells in recurrent tumors

    Characterize immunologic cell infiltrate in recurrent tumors and seek evidence of antigen escape outgrowth

    Measured: 1 year

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted29 Feb 2008 (estimated)
  2. Study start24 Apr 2007
  3. Primary completion6 Jul 2016
  4. Study completion6 Jul 2016

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
34 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00626483
Sponsor's protocol ID
Pro00000581
Other IDs
P50CA108786, P30CA014236, SPORE Project 3, CDR0000579683
Acronym
REGULATe
Status last verified
Mar 2021
First submitted
28 Feb 2008
Last updated
9 Mar 2021
Results posted
No
Data monitoring committee
Yes

Publications

  • Mitchell DA, Cui X, Schmittling RJ, Sanchez-Perez L, Snyder DJ, Congdon KL, Archer GE, Desjardins A, Friedman AH, Friedman HS, Herndon JE 2nd, McLendon RE, Reardon DA, Vredenburgh JJ, Bigner DD, Sampson JH. Monoclonal antibody blockade of IL-2 receptor alpha during lymphopenia selectively depletes regulatory T cells in mice and humans. Blood. 2011 Sep 15;118(11):3003-12. doi: 10.1182/blood-2011-02-334565. Epub 2011 Jul 18.

    PubMed 21768296

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing RNA-loaded dendritic cell vaccine and basiliximab in people with Malignant Neoplasms Brain, run by Gary Archer Ph.D. at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 9 Mar 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Functional capacity of CD4+,CD25+, CD127- T-regulatory cells (time frame: Approximately 26 months at time of brain tumor progression). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00626483, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 9 Mar 2021.

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