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NCT01519817

Cancer Vaccine Targeting Brachyury Protein in Tumors

Completed Phase 1 Results posted Last updated 29 January 2018
What this trial tests

Phase 1 trial testing GI-6301 (Yeast Brachyury Vaccine) in Neoplasms in 34 participants. Completed in 1 September 2016.

Timeline
5 January 2012
Primary endpoint
3 March 2016
1 September 2016

Quick facts

Lead sponsorNational Cancer Institute (NCI)
PhasePhase 1
StatusCompleted
Study typeINTERVENTIONAL
Allocationna
Designsingle group
Maskingnone
Primary purposetreatment
Enrollment34
Start date5 January 2012
Primary completion3 March 2016
Estimated completion1 September 2016
Sites1 location across United States

Drugs / interventions tested

Conditions studied

Sponsor

National Cancer Institute (NCI)

Who can join

Adults 18 to 100, any sex, with Neoplasms or Malignant Solid Tumors. Patients with the condition only — healthy volunteers not accepted.

Results — posted to ClinicalTrials.gov

Per-arm endpoint measurements with 95% confidence intervals where reported. Source: trial results section.

Number of Participants With Brachyury-Specific T-cell Responses Primary · Baseline (pre-vaccination) and approximately day 84 (after 6 vaccinations)

A fluorescense activated cell sorting (FACS)-based assay for cluster of differentiation 4 (CD4) or cluster of differentiation 8 (CD8) T-cells expressing the cytokines interferon (IFN) gamma, interleukin 2 (IL2), and tumor necrosis factor (TNF) alpha, and/or cluster of differentiation 107a (CD107a) (a marker for lytic potential) was used to determine the numbers of participants showing development or enhancement of the level of brachyury-specific T-cells after vaccination.

CD107a + CD4 T-cell response
GroupValue95% CI
4 YU (Dose Level 1)1
16 YU (Dose Level 2)0
40 YU (Dose Level 3)4
80 YU (Dose Level 4)1
IFN gamma + CD4 T-cell response
GroupValue95% CI
4 YU (Dose Level 1)1
16 YU (Dose Level 2)0
40 YU (Dose Level 3)3
80 YU (Dose Level 4)2
IL2 + CD4 T-cell response
GroupValue95% CI
4 YU (Dose Level 1)0
16 YU (Dose Level 2)0
40 YU (Dose Level 3)3
80 YU (Dose Level 4)3
TNF alpha + CD4 T-cell response
GroupValue95% CI
4 YU (Dose Level 1)0
16 YU (Dose Level 2)1
40 YU (Dose Level 3)6
80 YU (Dose Level 4)2
CD107a + CD8 T-cell response
GroupValue95% CI
4 YU (Dose Level 1)0
16 YU (Dose Level 2)0
40 YU (Dose Level 3)3
80 YU (Dose Level 4)4
IFN gamma + CD8 T-cell response
GroupValue95% CI
4 YU (Dose Level 1)0
16 YU (Dose Level 2)0
40 YU (Dose Level 3)3
80 YU (Dose Level 4)2
IL2 + CD8 T-cell response
GroupValue95% CI
4 YU (Dose Level 1)0
16 YU (Dose Level 2)0
40 YU (Dose Level 3)0
80 YU (Dose Level 4)1
TNF alpha + CD8 T-cell response
GroupValue95% CI
4 YU (Dose Level 1)0
16 YU (Dose Level 2)0
40 YU (Dose Level 3)2
80 YU (Dose Level 4)3
Count of Participants With Adverse Events of Escalating Doses of Yeast Brachyury ( GI- 6301) Vaccine Primary · 4 years and 25 days

Here is the count of participants with serious and non-serious adverse events assessed by the Common Terminology Criteria in Adverse Events (CTCAE v4.0). A non-serious adverse event is any untoward medical occurrence. A serious adverse event is an adverse event or suspected adverse reaction that results in death, a life threatening adverse drug experience, hospitalization, disruption of the ability to conduct normal life functions, congenital anomaly/birth defect or important medical events that jeopardize the patient or subject and may require medical or surgical intervention to prevent one o

GroupValue95% CI
4 YU (Dose Level 1)4
16 YU (Dose Level 2)3
40 YU (Dose Level 3)16
80 YU (Dose Level 4)10
Number of Participants With a Clinical Benefit Assessed by the Response Evaluation Criteria in Solid Tumors (RECIST) Secondary · 3 and 5 months restaging

Clinical benefit is defined as partial response (PR) or stable disease (SD) and was assessed by the Response Evaluation Criteria in Solid Tumors (RECIST) v1.1. Partial response is ≥30% decrease in the sum of greatest diameters/no new lesions. Progressive disease is ≥20% increase in the sum of greatest diameters/new lesions. Stable disease does not meet criteria for complete response (disappearance of all lesions; no new lesions), partial response, or progressive disease.

Stable disease at 3 months
GroupValue95% CI
4 YU (Dose Level 1)3
16 YU (Dose Level 2)0
40 YU (Dose Level 3)8
80 YU (Dose Level 4)6
Stable disease at 5 months
GroupValue95% CI
4 YU (Dose Level 1)2
16 YU (Dose Level 2)0
40 YU (Dose Level 3)4
80 YU (Dose Level 4)3
Partial response at 3 months
GroupValue95% CI
4 YU (Dose Level 1)0
16 YU (Dose Level 2)0
40 YU (Dose Level 3)0
80 YU (Dose Level 4)0
Partial response at 5 months
GroupValue95% CI
4 YU (Dose Level 1)0
16 YU (Dose Level 2)0
40 YU (Dose Level 3)1
80 YU (Dose Level 4)0
Progressive disease at 3 months
GroupValue95% CI
4 YU (Dose Level 1)1
16 YU (Dose Level 2)3
40 YU (Dose Level 3)8
80 YU (Dose Level 4)5
Progressive disease at 5 months
GroupValue95% CI
4 YU (Dose Level 1)1
16 YU (Dose Level 2)0
40 YU (Dose Level 3)3
80 YU (Dose Level 4)0
Changes in Immune Cell Subsets in Peripheral Blood Mononuclear Cells (PBMC) Secondary · Pre (Baseline) and Day 85 after 6 vaccinations

Blood samples will be collected via apheresis and analyzed by multicolor flow cytometry in PBMCs for cluster of differentiation 4 (CD4), cluster of differentiation 8 (CD8), Natural Killer (NK), Natural Killer T (NKT), conventional dendritic cell (cDC), plasmacytoid dendritic cell (pDC), myeloid-derived suppressor cell (MDSC), Tregs, CD4 central memory (CD4 CM), CD4 effector memory (CD4 EM), CD4 terminal effector memory (CD4 EMRA), CD4 naïve, CD8 CM, CD8 EM, CD8 EMRA, and CD8 naïve cells. Significance of changes in immune cells was determined by p value (Wilcoxon test) and the median and interq

Median CD4 Pre
GroupValue95% CI
4 YU (Dose Level 1)37.7024.11 – 46.36
16 YU (Dose Level 2)43.5740.26 – 46.87
40 YU (Dose Level 3)29.3024.65 – 39.77
80 YU (Dose Level 4)33.5826.84 – 39.92
Median CD4 d85
GroupValue95% CI
4 YU (Dose Level 1)38.6124.44 – 47.73
16 YU (Dose Level 2)33.4433.37 – 33.52
40 YU (Dose Level 3)34.2925.56 – 37.44
80 YU (Dose Level 4)27.9925.85 – 39.38
Median CD8 Pre
GroupValue95% CI
4 YU (Dose Level 1)15.878.26 – 16.86
16 YU (Dose Level 2)14.773.49 – 26.04
40 YU (Dose Level 3)15.9610.76 – 19.48
80 YU (Dose Level 4)13.7610.31 – 19.77
Median CD8 d85
GroupValue95% CI
4 YU (Dose Level 1)15.679.102 – 16.57
16 YU (Dose Level 2)13.634.123 – 23.14
40 YU (Dose Level 3)15.4210.96 – 22.44
80 YU (Dose Level 4)16.0210.57 – 25.5
Median B cells Pre
GroupValue95% CI
4 YU (Dose Level 1)7.056.19 – 10.07
16 YU (Dose Level 2)11.029.92 – 12.11
40 YU (Dose Level 3)8.973.54 – 12.13
80 YU (Dose Level 4)7.823.13 – 12.07
Median B cells d85
GroupValue95% CI
4 YU (Dose Level 1)6.936.16 – 10.58
16 YU (Dose Level 2)9.787.95 – 11.62
40 YU (Dose Level 3)9.105.07 – 12.17
80 YU (Dose Level 4)8.773.78 – 10.72
Median Natural Killer (NK) Pre
GroupValue95% CI
4 YU (Dose Level 1)5.214.14 – 6.94
16 YU (Dose Level 2)6.573.27 – 9.87
40 YU (Dose Level 3)5.723.13 – 8.51
80 YU (Dose Level 4)5.894.59 – 9.14
Median Natural Killer (NK) d85
GroupValue95% CI
4 YU (Dose Level 1)5.724.03 – 7.39
16 YU (Dose Level 2)8.415.50 – 11.31
40 YU (Dose Level 3)4.223.97 – 10.07
80 YU (Dose Level 4)9.145.95 – 11.4
Changes in Serum Levels of Cytokines Secondary · Pre (Baseline) and Day 85 after 6 vaccinations

Blood samples were collected and changes in serum levels of cytokines interferon gamma (IFNg), Interleukin 10 (IL-10), Interleukin 12 (IL-12)p70, Interleukin 1b (IL-1b), Interleukin 2 (IL-2), Interleukin 6 (IL-6), Interleukin 8 (IL-8), and tumor necrosis factor (TNF) were assessed by the multiplexed mesoscale assay. Significance of changes in serum levels of cytokines was determined by p value (Wilcoxon test) and the median and interquartile range of data.

Median IFNg Pre
GroupValue95% CI
4 YU (Dose Level 1)3.632.47 – 6.12
16 YU (Dose Level 2)3.562.99 – 4.13
40 YU (Dose Level 3)2.8051.97 – 3.6
80 YU (Dose Level 4)4.474.05 – 7.48
Median IFNg d85
GroupValue95% CI
4 YU (Dose Level 1)2.642.17 – 3.17
16 YU (Dose Level 2)2.832.62 – 3.04
40 YU (Dose Level 3)2.841.76 – 4.71
80 YU (Dose Level 4)4.92.91 – 6.81
Median IL-10 Pre
GroupValue95% CI
4 YU (Dose Level 1)0.240.17 – 0.54
16 YU (Dose Level 2)0.2150.2 – 0.23
40 YU (Dose Level 3)0.210.17 – 0.28
80 YU (Dose Level 4)0.40.31 – 0.47
Median IL-10 d85
GroupValue95% CI
4 YU (Dose Level 1)0.260.23 – 0.39
16 YU (Dose Level 2)0.2850.28 – 0.29
40 YU (Dose Level 3)0.240.18 – 0.31
80 YU (Dose Level 4)0.40.26 – 0.52
Median IL-12p70 Pre
GroupValue95% CI
4 YU (Dose Level 1)0.20.2 – 0.22
16 YU (Dose Level 2)0.220.2 – 0.24
40 YU (Dose Level 3)0.20.2 – 0.2
80 YU (Dose Level 4)0.20.2 – 0.37
Median IL-12p70 d85
GroupValue95% CI
4 YU (Dose Level 1)0.20.2 – 0.28
16 YU (Dose Level 2)0.20.2 – 0.2
40 YU (Dose Level 3)0.20.2 – 0.2
80 YU (Dose Level 4)0.20.2 – 0.26
Median IL-1b Pre
GroupValue95% CI
4 YU (Dose Level 1)0.240.24 – 1.15
16 YU (Dose Level 2)0.240.24 – 0.24
40 YU (Dose Level 3)0.240.24 – 0.24
80 YU (Dose Level 4)0.240.24 – 2.52
Median IL-1b d85
GroupValue95% CI
4 YU (Dose Level 1)0.240.24 – 0.25
16 YU (Dose Level 2)0.240.24 – 0.24
40 YU (Dose Level 3)0.240.24 – 0.24
80 YU (Dose Level 4)0.240.24 – 0.89
Changes in Soluble Cluster of Differentiation 27 (sCD27) Secondary · Pre (Baseline) and Day 85 after 6 vaccinations

Blood samples were collected and changes in serum levels of soluble sCD27 were assessed by enzyme-linked immunosorbent assay (ELISA). Significance of changes in soluble sCD27 was determined by p value (Wilcoxon test) and the median and interquartile range of data.

Median sCD27 Pre
GroupValue95% CI
4 YU (Dose Level 1)99.0791.13 – 131
16 YU (Dose Level 2)98.6387.12 – 110.1
40 YU (Dose Level 3)97.4785.15 – 110.9
80 YU (Dose Level 4)128.4123.9 – 145.6
Median sCD27 d85
GroupValue95% CI
4 YU (Dose Level 1)97.1792.07 – 1112
16 YU (Dose Level 2)92.0783.3 – 100.8
40 YU (Dose Level 3)101.798.85 – 105.1
80 YU (Dose Level 4)133.1129.7 – 155.8
Median Ratio of Soluble Cluster of Differentiation 27:40L (sCD27:sCD40L) Secondary · Pre (Baseline) and Day 85 after 6 vaccinations

Blood samples were collected and changes in serum levels of the ratio of soluble sCD27:sCD40L was assessed by enzyme-linked immunosorbent assay (ELISA). Significance of changes in soluble sCD27:sCD40L was determined by p value (Wilcoxon test) and the median and interquartile range of data.

Median sCD27:sCD40L Pre
GroupValue95% CI
4 YU (Dose Level 1)5.9825.71 – 11.67
16 YU (Dose Level 2)9.577.88 – 11.26
40 YU (Dose Level 3)9.5717.67 – 19.89
80 YU (Dose Level 4)8.576.93 – 10.62
Median sCD27:sCD40L d85
GroupValue95% CI
4 YU (Dose Level 1)6.4284.79 – 9.43
16 YU (Dose Level 2)8.2947.29 – 9.29
40 YU (Dose Level 3)10.476.63 – 19.38
80 YU (Dose Level 4)8.2576.96 – 8.91
Changes in Soluble Cluster of Differentiation 40L (sCD40L) Secondary · Pre (Baseline) and Day 85 after 6 vaccinations

Blood samples were collected and changes in serum levels of soluble sCD27 were assessed by enzyme-linked immunosorbent assay (ELISA). Significance of changes in soluble sCD40L was determined by p value (Wilcoxon test) and the median and interquartile range of data.

Median sCD40L Pre
GroupValue95% CI
4 YU (Dose Level 1)15.311.39 – 17.99
16 YU (Dose Level 2)10.249.78 – 11.06
40 YU (Dose Level 3)9.6485.27 – 13.99
80 YU (Dose Level 4)14.7213.67 – 18.74
Median sCD40L d85
GroupValue95% CI
4 YU (Dose Level 1)15.2311.96 – 19.42
16 YU (Dose Level 2)11.1410.84 – 11.43
40 YU (Dose Level 3)9.8545.86 – 14.52
80 YU (Dose Level 4)18.5716.09 – 19.51

Adverse events — posted to ClinicalTrials.gov

Time frame: 4 years and 25 days. Reporting threshold: 0%. Adverse-event reports describe events observed during the trial — not all are caused by the drug.

4 YU (Dose Level 1)
Serious: 0/4 (0%)
Deaths: 0/4
16 YU (Dose Level 2)
Serious: 0/3 (0%)
Deaths: 0/3
40 YU (Dose Level 3)
Serious: 5/16 (31%)
Deaths: 0/16
80 YU (Dose Level 4)
Serious: 6/11 (55%)
Deaths: 0/11

Serious adverse events (19 terms)

ReactionSystem4 YU (Dose Level 1)16 YU (Dose Level 2)40 YU (Dose Level 3)80 YU (Dose Level 4)
Small intestinal obstructionGastrointestinal disorders
Abdominal painGastrointestinal disorders
Aortic valve diseaseCardiac disorders
Atrial fibrillationCardiac disorders
Chest wall painMusculoskeletal and connective tissue disorders
HyperglycemiaMetabolism and nutrition disorders
Urinary tract obstructionRenal and urinary disorders
Wound infectionInfections and infestations
AtelectasisRespiratory, thoracic and mediastinal disorders
Bone infectionInfections and infestations
CholecystitisHepatobiliary disorders
Eye infectionEye disorders
FatigueGeneral disorders
Lung infectionInfections and infestations
Respiratory, thoracic and mediastinal disorders - Other, lung obstructionRespiratory, thoracic and mediastinal disorders
Soft tissue infectionInfections and infestations
Upper respiratory infectionRespiratory, thoracic and mediastinal disorders
Urinary tract infectionRenal and urinary disorders
WheezingRespiratory, thoracic and mediastinal disorders
Other adverse events (125 terms — click to expand)

ReactionSystem4 YU (Dose Level 1)16 YU (Dose Level 2)40 YU (Dose Level 3)80 YU (Dose Level 4)
AnemiaBlood and lymphatic system disorders
Injection site reactionSkin and subcutaneous tissue disorders
Injection site reactionGeneral disorders
HyperglycemiaMetabolism and nutrition disorders
HypophosphatemiaMetabolism and nutrition disorders
White blood cell decreasedInvestigations
Alkaline phosphatase increasedInvestigations
FatigueGeneral disorders
Alanine aminotransferase increasedInvestigations
Lymphocyte count decreasedInvestigations
PainGeneral disorders
Pain in extremityMusculoskeletal and connective tissue disorders
ProteinuriaRenal and urinary disorders
CoughRespiratory, thoracic and mediastinal disorders
Creatinine increasedInvestigations
HeadacheNervous system disorders
HemoglobinuriaRenal and urinary disorders
HyponatremiaMetabolism and nutrition disorders
Pleural effusionRespiratory, thoracic and mediastinal disorders
DiarrheaGastrointestinal disorders
HypoalbuminemiaMetabolism and nutrition disorders
Aspartate aminotransferase increasedInvestigations
FeverGeneral disorders
NauseaGastrointestinal disorders
Weight lossInvestigations
DyspneaRespiratory, thoracic and mediastinal disorders
FeverGeneral disorders
HypercalcemiaMetabolism and nutrition disorders
HypernatremiaMetabolism and nutrition disorders
HypoglycemiaMetabolism and nutrition disorders
Neutrophil count decreasedInvestigations
Rhinitis infectiveInfections and infestations
FractureInjury, poisoning and procedural complications
ConjunctivitisEye disorders
Cystitis noninfectiveRenal and urinary disorders
Edema faceGeneral disorders
Edema limbsGeneral disorders
FallInjury, poisoning and procedural complications
Flu like symptomsGeneral disorders
Platelet count decreasedInvestigations

Most-reported serious reactions: Small intestinal obstruction, Abdominal pain, Aortic valve disease, Atrial fibrillation, Chest wall pain, Hyperglycemia, Urinary tract obstruction, Wound infection.

Data from ClinicalTrials.gov NCT01519817 adverse events section.

Sponsor's own description

Background: \- Cancer vaccines are being developed to help teach the body's immune system to attack and destroy cancer cells. A new vaccine being tested targets Brachyury protein. This protein is present in some tumor cells, and it can help tumor cells spread to other parts of the body. Researchers want to see whether the new Brachyury protein vaccine can help treat people with advanced carcinomas. Objectives: \- To test the safety and effectiveness of a cancer vaccine that targets Brachyury protein in tumor cells. Eligibility: * Individuals at least 18 years of age who have advanced cancers that have not responded or are no longer responding to standard treatments. * Because the vaccine is made with yeast, people with yeast allergies will not be eligible. Design: * Participants will be screened with a medical history and physical exam. Imaging studies will be used to examine the cancer. Heart and thyroid function tests will be conducted. Blood and urine samples will also be collected. * Participants will receive vaccine injections every 2 weeks, for a total of seven visits. After seven visits, if the cancer has shrunk or stopped growing, participants will continue to have the vaccine about once a month. * Treatment will be monitored with frequent blood tests and imaging studies. Other tests will be given as directed by the study doctors. Some participants will have apheresis to collect additional blood cells for study. * Participants will continue to receive the vaccine as long the tumor does not start growing again and there are no serious side effects....

Publications & conference data

8 peer-reviewed publications reference this trial (live from Europe PMC):

  1. Cancer vaccines as promising immuno-therapeutics: platforms and current progress.
    Liu J, Fu M, Wang M, Wan D, et al · · 2022 · cited 497× · PMID 35303904 · DOI 10.1186/s13045-022-01247-x
  2. Phase I Trial of a Yeast-Based Therapeutic Cancer Vaccine (GI-6301) Targeting the Transcription Factor Brachyury.
    Heery CR, Singh BH, Rauckhorst M, Marté JL, et al · · 2015 · cited 99× · PMID 26130065 · DOI 10.1158/2326-6066.cir-15-0119
  3. Androgen-targeted therapy-induced epithelial mesenchymal plasticity and neuroendocrine transdifferentiation in prostate cancer: an opportunity for intervention.
    Nouri M, Ratther E, Stylianou N, Nelson CC, et al · · 2014 · cited 63× · PMID 25566507 · DOI 10.3389/fonc.2014.00370
  4. Randomized, Double-Blind, Placebo-Controlled Phase II Study of Yeast-Brachyury Vaccine (GI-6301) in Combination with Standard-of-Care Radiotherapy in Locally Advanced, Unresectable Chordoma.
    DeMaria PJ, Bilusic M, Park DM, Heery CR, et al · · 2021 · cited 45× · PMID 33594772 · DOI 10.1002/onco.13720
  5. Colorectal cancer vaccines: The current scenario and future prospects.
    Jia W, Zhang T, Huang H, Feng H, et al · · 2022 · cited 33× · PMID 35990683 · DOI 10.3389/fimmu.2022.942235
  6. Therapeutic Targeting of Epithelial Plasticity Programs: Focus on the Epithelial-Mesenchymal Transition.
    Malek R, Wang H, Taparra K, Tran PT. · · 2017 · cited 33× · PMID 28214899 · DOI 10.1159/000447238
  7. Chordoma: The Quest for Better Treatment Options.
    Heery CR. · · 2016 · cited 29× · PMID 28261639 · DOI 10.1007/s40487-016-0016-0
  8. Trial watch: Naked and vectored DNA-based anticancer vaccines.
    Bloy N, Buqué A, Aranda F, Castoldi F, et al · · 2015 · cited 29× · PMID 26155408 · DOI 10.1080/2162402x.2015.1026531

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