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Phase ll trial of TS-1 + CDDP + Trastuzumab(SPT)-3 weekly schedule in HER2-positive advanced gastric cancer(HERBIS-1) (OGSG 1101)

Phase ll trial of TS-1 + CDDP + Trastuzumab(SPT)-3 weekly schedule in HER2-positive advanced gastric cancer(HERBIS-1) (OGSG 1101) - HER2-Based Strategy in Gastric Cancer(HERBIS-1) (OGSG 1101)

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000005739
Enrollment
50
Registered
2011-06-10
Start date
2011-07-21
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

Advanced Gastric Cancer

Interventions

Drug : TS-1, cisplatin, and trastuzumab TS-1 : 80mg/m2/day po on Days 1-14 Cisplatin : 60mg/m2 iv on Day 1 Trastuzumab : 8mg/kg iv on Day 1 (fist course), and 6mg/kg iv on Day 1 (from second course

Sponsors

Osaka Gastrointestinal cancer chemotherapy Study Group (OGSG)
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Histologically confirmed unresectable or recurrent gastric adenocarcinoma including adenocarcinoma of the gastro-esophageal junction. 2. Patients who have measurable region defined by RECIST version 1.1 within 21 days before enrollment. 3. Patients who have HER2-positive cancer confirmed with IHC and/or FISH (IHC 3+ or IHC 2+ and FISH positive). 4. Age 20-75 5. Performance status (ECOG scale) 0 or 1. 6. No prior chemotherapy or radiotherapy for gastric cancer. 7. No massive ascites or massive pleural effusion retention. 8. Patients without brain metastasis. 9. Adequate baseline organ and marrow function as defined below; a. Leukocytes : 3,500-12,000/mm3 b. Absolute neutrophil count : >= 2,000/mm3 c. Platelets : >= 100,000/mm3 d. Hemoglobin : >= 9.0g/dL e. AST (SGOT)/ALT (SGPT) : < 100IU/L f. Total bilirubin : < 1.5mg/dL g. Serum creatinine : <= 1.2mg/dL h. Creatinine clearance : >= 60mL/min 10. Patients with left ventricular ejection fraction of at least 50% on MUGA (Multi Gated Acquisition Scan) or echocardiography done within 21 days before enrollment. 11. No abnormal findings requiring treatment in the electrocardiogram within 21 days before enrollment. 12. Patients able to take orally. 13. Life expectancy of greater than 3 months. 14. Patients should sign a written informed consent.

Exclusion criteria

Exclusion criteria: 1. Patients who are contraindicated to S-1, CDDP, and Trastuzumab. 2. Women in pregnancy, at risk of pregnancy, hoping to become pregnant. Men who want their partners to become pregnant. 3. Patients with active infection. 4. Patients have Active hepatitis type B. 5.Serious illness or medical conditions as defined below; a. Patient with a previous history of congestive heart failure b. Hi-risk uncontrolled arrhythmias c. Unstable angina requiring medication d. Patient with a previous history of myocardial infarction e. Severe heart valve disease f. Patient with a previous history of transmural infarct g. Uncontrolled hypertension 6. Serious complication as followings ; a. Interstitial pneumonia b. Pulmonary fibrosis c. Heart failure d. Renal failure e. Hepatic failure f. Uncontrolled diabetes mellitus 7. Patients with resting dyspnea 8. Patients with fresh bleeding from gastric cancer and/or the digestive tract 9. Patients with diarrhea (4 or more times per day or watery diarrhea). 10.Second primary malignancy (except adequately treated basal cell carcinoma treated more than 5 years ago without recurrence) 11. Patients who are received systemic continuous administration of flucytosine, phenytoin, or warfarin. 12. Patients who are received systemic administration of corticosteroid. 13. Any patients judged by the investigator to be unfit to participate in the study.

Design outcomes

Primary

MeasureTime frame
Response rate(RR)

Secondary

MeasureTime frame
Safety Progression-free survival(PFS) Overall survival(OS) Time to treatment failure(TTF)

Countries

Japan

Contacts

Public ContactYuinori Kurokawa

Osaka University Graduate School of Medicen Department of Gastroenterological Surgery

ykurokawa@gesurg.med.osaka-u.ac.jp06-6879-3251

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026