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Study to Determine the Antibody Response to 500µg G17DT in Treatment of Patients With Gastric Cancer

An Open, Multi-center Study to Determine the Antibody Response to 500µg G17DT Given at Weeks 0, 2, and 6 in the Treatment of Patients With Gastric Cancer

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02450032
Acronym
GC5
Enrollment
12
Registered
2015-05-21
Start date
2000-02-29
Completion date
2001-05-31
Last updated
2015-05-21

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Gastric Cancer

Brief summary

This study was designed to investigate the antibody response generated by a 500µg dose of G17DT in patients with gastric cancer.

Detailed description

Another study, GC2, initiated prior to the start of this study investigated the appropriate dose and dosing schedule for G17DT in patients with Stage I-III gastric cancer. The highest dose tested in the GC2 study was 250µg. This dose was well tolerated but was not considered sufficiently immunogenic. Since tolerability had not constrained dosing up to 250µg, the GC5 study was designed to investigate a 500µg dose administered as a regimen of 0, 2, and 6 weeks.

Interventions

BIOLOGICALG17DT

Sponsors

Cancer Advances Inc.
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients with histologically confirmed UICC Stage I, II or III gastric adenocarcinoma. * Patients must have had a macroscopically curative resection for gastric cancer with absence of metastatic disease at the time of entry to the trial. * Male or Female patients aged 18 years or older. * Life expectancy of at least 3 months. * WHO Performance Status of 0 to 1. * Written informed consent

Exclusion criteria

* Gastric surgery within four weeks of baseline (Week 0, visit 2) or gastric surgery anticipated during the period of the study. * History of other malignant disease within the previous five years, except nonmelanomatous skin cancer or in situ carcinoma of the uterine cervix. * Previous use within the last four weeks, concomitant use of anticipated use in the period of study, of any anti-cancer therapies. * Concomitant use of immunosuppressants, including systemic (i.e. oral or injected) corticosteroids. * Females who were pregnant, planning to become pregnant or lactating. * Patients taking part in another study involving an investigational or licensed drug or device in the three months preceding enrollment or during this study. * Previous G17DT treatment. * Haematologicial indicators: Haemoglobin (Hb) \< 10g/dL White blood cell count (WBC) \< 4.0 x 10\^9/L Platelets \< 100 x 10\^9/L

Design outcomes

Primary

MeasureTime frameDescription
Antibody LevelsThrough Week 12Gastrin-17 antibodies are produced as a result of treatment with G17DT and the proportion of patients producing gastrin-17 antibodies was considered to be an appropriate measure of the immunogenicity of the dosing schedule under study.
Injection Site ReactionUp to Week 12A physical examination for the presence of an abscess at the injection site was performed on each patient to assess tolerability to treatment at every posttreatment visit from Week 0 to Week 12.
Change in Subject's World Health Organization Performance StatusThrough Week 12The subject's WHO performance status was evaluated at each visit up to Week 12 to assess changes in subject's ability complete normal daily activities.

Secondary

MeasureTime frameDescription
Overall SurvivalFrom date of randomization up to Week 24 or until deathVital status was monitored throughout the study. Patients were followed up to their death or the study completion date, 18 June 2001.
Adverse EventsThrough week 12All adverse events reported during the study.

Countries

United Kingdom

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026