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Spots Global Cancer Trial Database for IDH1 Peptide Vaccine for Recurrent Grade II Glioma

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Trial Identification

Brief Title: IDH1 Peptide Vaccine for Recurrent Grade II Glioma

Official Title: Patients With IDH1 Positive Recurrent Grade II Glioma Enrolled in a Safety and Immunogenicity Study of Tumor-Specific Peptide Vaccine

Study ID: NCT02193347

Study Description

Brief Summary: Potential subjects with progressive Grade II primary brain tumor that have IDH1 positive testing from the primary tumor (initial diagnosis) will be offered this treatment study in order to test the safety of the PEPIDH1M vaccine in combination with standard chemotherapy (temozolomide).

Detailed Description: After informed consent has been signed, subjects will undergo standard of care vaccination with 0.5 mL of Td (tetanus and diphtheria toxoids adsorbed) intramuscularly into the deltoid muscle to ensure adequate immunity to the tetanus antigen. Eligible subjects will undergo a 1-2 hour leukapheresis (to pull off white blood cells) for immune monitoring. Within 48 hours of leukapheresis, subjects will receive vaccine site pre-conditioning as a single dose of Td toxoid (in a total volume of 0.4 mLs salt water/saline) given in the intradermal space (just under the surface of the skin) to the right groin area. The pre-conditioning will be administered one day prior to receiving PEPIDH1M vaccine. The peptide vaccine is administered in the upper thigh area approximately 4 inches below the groin in the intradermal space as vaccine # 1. Subsequent vaccines will be given on day 15 ±3 days (vaccine #2) and day 29 ±3 days (vaccine #3). Each injection of the peptide vaccine will be given half on the right groin and half on the left groin. The first 3 peptide vaccine injections will occur without temozolomide (standard of care chemotherapy). Seven to twelve days after the 3rd vaccine, subjects will have standard of care surgery to remove the tumor. Tumor samples will be evaluated for the IDH1 markers and analyzed for other cells that may have entered the tumor. Based on the the tissue obtained at surgery, subjects with stable histologic grade at recurrence will then be treated with vaccine and temozolomide. During monthly cycles of temozolomide, subjects will receive the vaccine on day 22 (+ 2 days) for a maximum of 15 total vaccines (which includes the first 3 bi-weekly vaccines). Patients that have transitioned to a higher grade brain tumor at the time of surgery will receive temozolomide and radiation therapy per standard of care and monthly vaccines (vaccines #4-6). After completion of radiation therapy, subjects in this treatment group will receive vaccines monthly on day 22 (+2 days) with post-RT cycles of TMZ to a maximum of 15 vaccines. All Adverse Events will be collected from time of consent until off study. The treatment phase of the study will end 1 month after the last vaccine. Patients will be followed only for overall survival, progression-free survival, and subsequent therapies thereafter. Subjects will have blood collected for immune monitoring and biomarker testing during the following times: prior to initiating vaccine therapy (at the leukapheresis visit), prior to surgery to remove the tumor, at the clinic visit prior to starting first cycle of temozolomide after surgery (or radiation therapy and temozolomide for those who transition to higher grade), at vaccine #6, and at end of vaccine treatment (1 month after vaccine #15 or time the subject comes off study, whichever comes first). Subjects will be imaged with contrast-enhanced magnetic resonance imaging (MRI) according to standard of care every 10 weeks (+/- 4 weeks) while on temozolomide and afterward, per the treating neuro-oncologist's recommendation. Revised Assessment in Neuro-Oncology (RANO) criteria will be used for assessment of pseudoprogression and tumor progression. Subjects demonstrating definitive progression will be removed from study. As part of standard care for these subjects, upon tumor progression, participants may undergo biopsy or resection. As this is not a research procedure, consent will be obtained separately. Subjects that have this procedure done within the Duke University Health System will be asked to have a portion of the tumor sample, if possible, to assess immunologic cell infiltration, antigen expression, and biomarkers for immunologic response. Please note, data collection will continue to occur outside of the defined primary and secondary outcomes for exploratory objectives. The specific exploratory objective involves describing the progression free survival (PFS) and overall survival (OS). The endpoint is the proportion of patients alive without disease progression 6 months after initial vaccine treatment, and both the median PFS, and the median OS. The objective will be reviewed at 3 years after the last subject came off study.

Eligibility

Minimum Age: 18 Years

Eligible Ages: ADULT, OLDER_ADULT

Sex: ALL

Healthy Volunteers: No

Locations

Duke University Medical Center, Durham, North Carolina, United States

Contact Details

Name: Katherine Peters, M.D., Ph.D.

Affiliation: Duke University

Role: PRINCIPAL_INVESTIGATOR

Useful links and downloads for this trial

Clinicaltrials.gov

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