Study of OTSGC-A24 Vaccine in Advanced Gastric Cancer
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Purpose
Active vaccination with tumor specific antigens and VEGFR1 HLA-A24 epitopes can improve survival of patients with advanced Gastric Cancer.
| Condition | Intervention | Phase |
|---|---|---|
|
Gastric Cancer |
Biological: OTSGC-A24 |
Phase 1 Phase 2 |
| Study Type: | Interventional |
| Study Design: | Allocation: Non-Randomized Endpoint Classification: Safety/Efficacy Study Intervention Model: Single Group Assignment Masking: Open Label Primary Purpose: Treatment |
| Official Title: | A Phase I/IIa Study of OTSGC-A24 Vaccine in Advanced Gastric Cancer |
- safety of OTSGC-24 [ Time Frame: within 4 weeks of treatment ] [ Designated as safety issue: Yes ]Dose limiting toxicity will be evaluated during the first 4 weeks of treatment. If in the unlikely event that DLT is observed in 1 of the 3 subjects, an additional 3 subjects will be enrolled at the same dose level. If DLT is observed in 2 of the 6 subjects, subsequent cohorts will be treated at 0.5 mg.
- Optimal dosing schedule [ Time Frame: 1 year ] [ Designated as safety issue: Yes ]In each cohort, OTSGC-A24 (~1 mg) will be administered subcutaneously at 3-weekly (cohort 1), 2-weekly (cohort 2) and weekly (cohort 3) interval. Treatment may continue until the subject experiences confirmed disease progression or unacceptable toxicity, withdraws consent, or requires treatment with another therapeutic modality.
- Induction of specific cytotoxic T-lymphocyte (CTL) response [ Time Frame: after 4 weeks and 12 weeks of vaccination ] [ Designated as safety issue: Yes ]Up to 10 patients per cohort will be recruited in the cohort or cohorts with the highest specific CTL induction rate to define the optimal dosing schedule for OTSGC-A24.
| Estimated Enrollment: | 23 |
| Study Start Date: | November 2010 |
| Estimated Study Completion Date: | November 2014 |
| Estimated Primary Completion Date: | November 2013 (Final data collection date for primary outcome measure) |
| Arms | Assigned Interventions |
|---|---|
|
Experimental: Weekly Cohort
The gastric cancer vaccine (OTSGC-A24) will be administered at a dose of 1 mg once a week
|
Biological: OTSGC-A24
OTSGC-A24 administered at 1 mg in weekly, 2-weekly, and 3-weekly cohorts.
|
|
Experimental: 2-weekly cohort
The gastric cancer vaccine (OTSGC-A24) will be administered at the dose of 1 mg every 2 weeks.
|
Biological: OTSGC-A24
OTSGC-A24 administered at 1 mg in weekly, 2-weekly, and 3-weekly cohorts.
|
|
Experimental: 3-weekly cohort
The gastric cancer vaccine (OTSGC-A24)will be administered at 1 mg very 3 weeks
|
Biological: OTSGC-A24
OTSGC-A24 administered at 1 mg in weekly, 2-weekly, and 3-weekly cohorts.
|
Detailed Description:
Although palliative chemotherapy improved the outcome of patients with advanced Gastric Cancer, the prognosis for this group of patients remains poor. Tumor specific antigens and angiogenesis pathway are potential targets for immunotherapy. A cocktail of peptide vaccines is selected to overcome gastric cancer's heterogeneous and enhance the anti-tumor effect. Five HLA-A*2402-binding peptide vaccines derived from tumor specific antigens and VEGFR1 are chosen based on the frequencies of their expressions in gastric cancer and the ability to induce specific cytotoxic T-lymphocytes. In preclinical model, both down regulation these targets with siRNA and active vaccination resulted in tumor regression. The purpose of the study is to evaluate the safety and optimal dosing schedule of a cancer vaccine cocktail, OTSGC-A24 targeting novel specific tumor antigens FOXM1, DEPDC1, KIF20A, URLC10 and VEGFR1 in advanced gastric cancer patients with HLA-2402 haplotype.
Eligibility| Ages Eligible for Study: | 21 Years and older |
| Genders Eligible for Study: | Both |
| Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Patients must have histologically or cytologically confirmed inoperable or metastatic adenocarcinoma of the stomach or lower third of the oesophagus refractory or intolerable to standard therapy.
- Patients must have measurable or evaluable disease.
- Age >= 201years
- ECOG performance status of 0 to 2
- Life expectancy at least 3 months
- Patients must have normal organ and marrow function as defined below:
- absolute neutrophil count >=1,500/mcL
- platelets >=100,000/mcL
- total bilirubin within normal institutional limits
- AST(SGOT)/ALT(SGPT) <=2.5 X institutional upper limit of
- Normal creatinine within normal institutional limits
- Patients must be HLA-A*2402
- Patients must have recover from all reversible treatment toxicity from prior chemotherapy, radiotherapy or surgery.
- The effects of OTSGC-A24 on the developing human fetus at the recommended therapeutic dose are unknown. For this reason, women of child-bearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) prior to study entry and for the duration of study participation. Should a woman become pregnant or suspect she is pregnant while participating in this study, she should inform her treating physician immediately.
- Ability to understand and the willingness to sign a written informed consent document.
Exclusion Criteria:
- Patients receiving any other investigational agents.
- History of significant gastrointestinal bleeding that required intervention within the prior 1 month is ineligible; inherited bleeding diathesis or coagulopathy.
- Serious non healing wound and peptic ulcer disease
- Previous history of intestinal perforation
- Invasive procedures defined as follows (Insertion of a vascular access device is not considered major/minor surgery):
- Major surgical procedure, open biopsy or significant traumatic injury =28 days prior to -registration
- Anticipation of need for major surgical procedures during the course of the study
- Core biopsy <=7 days
- Minor surgery <=2 weeks
- Symptomatic CNS metastasis
- Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, uncontrolled hypertension (systolic >150 mmHg and/or diastolic >100 mmHg), symptomatic congestive heart failure, unstable angina pectoris, myocardial infarction/cerebrovascular event (<=6 months prior to study entry), cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements, long term systemic immunosuppressant or corticosteroid.
- Women who are breast-feeding or pregnant are excluded from this study
Contacts and Locations| Contact: Wei Peng Yong, MRCP, MB ChB | (65) 6772 4670 | Wei_Peng_Yong@nuhs.edu.sg |
| Contact: Christine Vergara | (65) 6772 4619 | christine_vergara@nuhs.edu.sg |
| Japan | |
| Wakayama Medical University Hospital | Recruiting |
| Wakayama, Japan, 641-8509 | |
| Contact: Hiroki Yamaue, M.D. yamaue-h@wakayama-med.ac.jp | |
| Principal Investigator: Hiroki Yamaue, M.D. | |
| Korea, Republic of | |
| Severance Hospital, Yonsei University Health System | Recruiting |
| Seoul, Korea, Republic of, 120-752 | |
| Contact: Sun Young Rha, M.D, Ph.D +82 (2) 2228 8050 rha7655@yuhs.ac | |
| Contact: Hyun Jung Park +82 (2) 2228 8054 hjwwjd@yuhs.ac | |
| Principal Investigator: Sun Young Rha, M.D, Ph.D | |
| Singapore | |
| National University Hospital | Recruiting |
| Singapore, Singapore | |
| Contact: Wei Peng Yong, MRCP, MB ChB 65 6772 4670 Wei_Peng_Yong@nuhs.edu.sg | |
| Principal Investigator: Wei Peng Yong, MRCP, MB ChB | |
| Principal Investigator: | Wei Peng Yong, MRCP, MB ChB | National University Hospital, Singapore |
More Information
Publications:
| Responsible Party: | National University Hospital, Singapore |
| ClinicalTrials.gov Identifier: | NCT01227772 History of Changes |
| Other Study ID Numbers: | GA04/26/10 |
| Study First Received: | October 21, 2010 |
| Last Updated: | March 21, 2013 |
| Health Authority: | Singapore: Domain Specific Review Boards Singapore: Health Sciences Authority Singapore: Ministry of Health |
Keywords provided by National University Hospital, Singapore:
|
gastric cancer vaccine OTSGC-A24 A Phase I/IIa study HLA-A24-positive |
Additional relevant MeSH terms:
|
Stomach Neoplasms Gastrointestinal Neoplasms Digestive System Neoplasms Neoplasms by Site |
Neoplasms Digestive System Diseases Gastrointestinal Diseases Stomach Diseases |
ClinicalTrials.gov processed this record on June 18, 2013