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Phase 1 N=34 Treatment

Cancer Vaccine Targeting Brachyury Protein in Tumors

Neoplasms · Malignant Solid Tumors · Colon Neoplasms · Adenocarcinoma

Enrolled (actual)
34
Serious AEs
32.4%
Results posted
Jul 2017
Primary outcome: Primary: Number of Participants With Brachyury-Specific T-cell Responses — 1; 0; 4; 1 Participants

Study Design & Population

Study type
Interventional
Phase
Phase 1
Interventions
GI-6301 (Yeast Brachyury Vaccine) (Biological)
Age
Adult, Older Adult · 18+ yrs
Sex
All
Sponsor
National Cancer Institute (NCI)
Primary completion
Mar 2016

Outcome Measures

OutcomeResultp-value
PRIMARY
Number of Participants With Brachyury-Specific T-cell Responses
1; 0; 4; 1; 1; 0
PRIMARY
Count of Participants With Adverse Events of Escalating Doses of Yeast Brachyury ( GI- 6301) Vaccine
4; 3; 16; 10
SECONDARY
Number of Participants With a Clinical Benefit Assessed by the Response Evaluation Criteria in Solid Tumors (RECIST)
3; 0; 8; 6; 2; 0
SECONDARY
Changes in Immune Cell Subsets in Peripheral Blood Mononuclear Cells (PBMC)
37.70; 43.57; 29.30; 33.58; 38.61; 33.44 0.5221
SECONDARY
Changes in Serum Levels of Cytokines
3.63; 3.56; 2.805; 4.47; 2.64; 2.83 0.375
SECONDARY
Changes in Soluble Cluster of Differentiation 27 (sCD27)
99.07; 98.63; 97.47; 128.4; 97.17; 92.07 0.2901
SECONDARY
Median Ratio of Soluble Cluster of Differentiation 27:40L (sCD27:sCD40L)
5.982; 9.57; 9.571; 8.57; 6.428; 8.294 0.1004
SECONDARY
Changes in Soluble Cluster of Differentiation 40L (sCD40L)
15.3; 10.24; 9.648; 14.72; 15.23; 11.14 0.0621

Summary

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....

Eligibility Criteria

  • INCLUSION CRITERIA:

Participants must meet the following criteria for participation:

  • Diagnosis: Patients must have histologically confirmed malignancy by the Laboratory of Pathology, National Cancer Institute (NCI), that is metastatic or unresectable locally advanced malignant solid tumor. In the case of Chordoma, unresectable, locally recurrent, or metastatic tumors are acceptable for enrollment, given that this represents incurable disease. Efforts will be made, as much as possible, to enroll patients with tumor types with known increased expression of Brachyury (such as lung, breast, ovarian, prostate, colorectal, pancreatic, or chordoma).
  • Patients may have disease that is measurable or non-measurable but evaluable disease
  • Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 1 at study entry (Karnofsky greater than or equal to 70)
  • Age greater than or equal to 18 years. Because no dosing or adverse event data are currently available on the use of Yeast Brachyury vaccine in patients 90% on room air.
  • Recovered completely (Grade 1 or baseline) from any reversible toxicity associated with recent therapy. Typically this is 3 4 weeks for patients who most recently received cytotoxic therapy, except for the nitrosoureas and mitomycin C for which 6 weeks is needed for recovery.
  • There should be a minimum of 2 weeks from any prior chemotherapy, immunotherapy and/or radiation.
  • Prior immune therapy is allowed.
  • Men and women of child-bearing potential must agree to use effective birth control or abstinence during and for a period of 4 months after the last vaccination therapy.
  • Patients with prostate cancer must continue to receive gonadotropin-releasing hormone (GnRH) agonist therapy (unless orchiectomy has been done). If a patient has refused GnRH therapy, they may be enrolled on a dose level for which the safety has already been determined.
  • Patients with estrogen-receptor positive (ER+) breast cancer being treated with adjuvant hormonal therapy (selective estrogen receptor modulator or aromatase inhibitor) who have rising tumor markers as evidence of disease progression or metastatic disease on scans may continue on hormonal therapy while being treated with vaccine.
  • Patients must be negative for yeast allergy skin test
  • Ability to understand and the willingness to sign a written informed consent document.

EXCLUSION CRITERIA

Patients with any of the following will not be eligible for participation in this study:

  • Patients should have no evidence of immune dysfunction as listed below.
  • Human immunodeficiency virus (HIV) positivity due to the potential for decreased immune response to the vaccine.
  • Active autoimmune diseases requiring treatment or a history of autoimmune disease that might be stimulated by vaccine treatment. This requirement is due to the potential risks of exacerbating autoimmunity. However, patients with vitiligo, diabetes mellitus, and hashimoto s thyroiditis on appropriate replacement therapy may be

enrolled.

--Concurrent use of systemic steroids, except for physiologic doses of systemic steroid replacement or local (topical, nasal, or inhaled) steroid use. Limited doses of systemic steroids (e.g., in patients with exacerbations of reactive airway disease or to prevent intravenous (IV) contrast allergic reaction or anaphylaxis in patients who have known contrast allergies) are allowed.

  • History of allergy or untoward reaction to yeast-based products (any hypersensitivity to yeast-based products will be excluded).
  • Pregnant or breast-feeding women, due to the unknown effects of the Yeast Brachyury vaccine on the fetus or infant.
  • Serious intercurrent medical illness which would interfere with the ability of the patient to carry out the treatment program, including, but not limited to, inflammatory bowel disease, Crohn's disease, ulcerative colitis, or active diverticulitis.
  • Untreated brain metastases (or local treatment of brain metastases within the last 6 mon
View full record on ClinicalTrials.gov →

Data sourced from ClinicalTrials.gov (NCT01519817). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication.

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