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Docetaxel, Oxaliplatin and 5-FU for Gastric Cancer With Inoperable Malignant Bowel Obstruction

Phase 2
Recruiting
Conditions
Metastatic Gastric Adenocarcinoma
Metastatic Gastroesophageal Junction Adenocarcinoma
Peritoneal Carcinomatosis
Interventions
Registration Number
NCT04840264
Lead Sponsor
Sixth Affiliated Hospital, Sun Yat-sen University
Brief Summary

This is a multi-center, non-randomized, 3-cohort, phase II trial, evaluating a triplet combination of docetaxel, oxaliplatin and fluorouracil for gastric cancer with peritoneal carcinomatosis and inoperable malignant bowel obstruction.

Detailed Description

The primary study hypothesis is that the regimen will provide a clinically meaningful bowel obstruction clearance. This trial has 3 paralleled cohorts with the same experimental regimen: Cohort A (first-line therapy) will include 35 participants who have not received any palliative chemotherapy; Cohort B (second-line therapy) will include 22 participants who progress after the first-line therapy; Cohort C (third- or later-line therapy) plans to include 22 cases who have received two or more prior therapies for their metastatic disease.

Recruitment & Eligibility

Status
RECRUITING
Sex
All
Target Recruitment
79
Inclusion Criteria
  • 18-75 years of age;
  • ECOG PS ≤3;
  • pathologically diagnosed gastric or gastroesophageal junctional adenocarcinoma;
  • peritoneal carcinomatosis established by imaging data or pathological evidence;
  • MBO below the Treitz ligament based on clinical grounds or radiological findings;
  • considered as inoperable MBO by two independent surgical consultants;
  • Hb≥60g/L, WBC ≥4×10E9/L, ANC≥2×10E9/L,PLT≥100×10E9/L;
  • Cr≤ Upper Normal Limit(UNL);
  • Tbil≤1.5 UNL,AST≤1.5 UNL, ALT≤1.5 UNL, ALP≤1.5 UNL;
  • Written informed consent form paticipants.
Exclusion Criteria
  • treated by a combination regimen containing all the study drugs;
  • allergy to any of the study drugs;
  • HER-2 amplification or overexpression, mismatch repair protein expression deletion (dMMR), or genetic testing suggestive of high microsatellite instability (MSI-H);
  • strangulated intestinal obstruction;
  • active gastrointestinal bleeding;
  • uncontrolled active infection;
  • unstable heart diseases with severe ECG abnormalities or affect clinical treatment (such as cardiac insufficiency, myocardial infarction, angina);
  • severe lung diseases (such as interstitial pneumonia, pulmonary fibrosis, severe emphysema, etc);
  • mental disorders that affect clinical treatment or central nervous system diseases;
  • concomitant cerebral parenchymal or meningeal metastasis;
  • HIV infection or untreated active hepatitis;
  • bowel surgery or stenting required due to obstruction;
  • pregnant or lactating women;
  • other conditions that are not suitable for participation in the study.

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
B (Second-Line Therapy)FluorouracilDocetaxel 25 mg/square metre, ivdrip 60 min, D1, D8, D15; Oxaliplatin 85 mg/square metre, ivdrip 180 min, D1, D15; 5Fu 1200 mg/square metre, civ 24 hours, D1, D8, D15; Repeat every 4 weeks.
C (Third- or Later-Line Therapy)DocetaxelDocetaxel 25 mg/square metre, ivdrip 60 min, D1, D8, D15; Oxaliplatin 85 mg/square metre, ivdrip 180 min, D1, D15; 5Fu 1200 mg/square metre, civ 24 hours, D1, D8, D15; Repeat every 4 weeks.
C (Third- or Later-Line Therapy)OxaliplatinDocetaxel 25 mg/square metre, ivdrip 60 min, D1, D8, D15; Oxaliplatin 85 mg/square metre, ivdrip 180 min, D1, D15; 5Fu 1200 mg/square metre, civ 24 hours, D1, D8, D15; Repeat every 4 weeks.
A (First-Line Therapy)DocetaxelDocetaxel 25 mg/square metre, ivdrip 60 min, D1, D8, D15; Oxaliplatin 85 mg/square metre, ivdrip 180 min, D1, D15; 5Fu 1200 mg/square metre, civ 24 hours, D1, D8, D15; Repeat every 4 weeks.
A (First-Line Therapy)OxaliplatinDocetaxel 25 mg/square metre, ivdrip 60 min, D1, D8, D15; Oxaliplatin 85 mg/square metre, ivdrip 180 min, D1, D15; 5Fu 1200 mg/square metre, civ 24 hours, D1, D8, D15; Repeat every 4 weeks.
A (First-Line Therapy)FluorouracilDocetaxel 25 mg/square metre, ivdrip 60 min, D1, D8, D15; Oxaliplatin 85 mg/square metre, ivdrip 180 min, D1, D15; 5Fu 1200 mg/square metre, civ 24 hours, D1, D8, D15; Repeat every 4 weeks.
B (Second-Line Therapy)OxaliplatinDocetaxel 25 mg/square metre, ivdrip 60 min, D1, D8, D15; Oxaliplatin 85 mg/square metre, ivdrip 180 min, D1, D15; 5Fu 1200 mg/square metre, civ 24 hours, D1, D8, D15; Repeat every 4 weeks.
B (Second-Line Therapy)DocetaxelDocetaxel 25 mg/square metre, ivdrip 60 min, D1, D8, D15; Oxaliplatin 85 mg/square metre, ivdrip 180 min, D1, D15; 5Fu 1200 mg/square metre, civ 24 hours, D1, D8, D15; Repeat every 4 weeks.
C (Third- or Later-Line Therapy)FluorouracilDocetaxel 25 mg/square metre, ivdrip 60 min, D1, D8, D15; Oxaliplatin 85 mg/square metre, ivdrip 180 min, D1, D15; 5Fu 1200 mg/square metre, civ 24 hours, D1, D8, D15; Repeat every 4 weeks.
Primary Outcome Measures
NameTimeMethod
60-day Obstruction Clearance Rate60 days

proportion of participants who achieved obstruction clearance within 60 days from start of treatment

Secondary Outcome Measures
NameTimeMethod
Time to Obstruction Clearance60 days

interval from start of treatment to obstruction clearance

30-day Obstruction Clearance Rate30 days

proportion of participants who achieved obstruction clearance within 30 days from start of treatment

Obstruction Clearance Duration2 years

interval from obstruction clearance to the next malignant bowel obstruction

Safety in terms of Adverse Events2 years

according to Common Terminology Criteria for Adverse Events version 5.0

Overall Survival2 years

interval from start of treatment to death or last follow-up

Quality of Life assessed by EORTC QLQ-OG253 months

in terms of European Organization for Research and Treatment of Cancer Quality of Life questionnair OG25

Trial Locations

Locations (1)

The Sixth Affiliated hosipital, Sun Yat-Sen University

🇨🇳

Guangzhou, Guangdong, China

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