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XELOX for 4 Months Versus 6 Months in Gastric Cancer (LOMAC)

XELOX for 4 Months Versus 6 Months as Adjuvant Chemotherapy in Gastric Cancer After D2 Resection (LOMAC)

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03399110
Enrollment
1024
Registered
2018-01-16
Start date
2018-01-14
Completion date
2026-08-15
Last updated
2026-08-24

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

Conditions

Gastric Cancer

Keywords

Adjuvant chemotherapy, Gastric Cancer, Non-inferiority, Oxaliplatin, Capecitabine

Brief summary

Our study aims to compare 4 months versus 6 months of adjuvant capecitabine plus oxaliplatin after D2 gastrectomy in patients with gastric cancer. Hypothesis: We hypothesize that a 4-month regimen of capecitabine plus oxaliplatin is noninferior to a 6-month regimen with respect to DFS and is associated with lower treatment-related toxicity.

Detailed description

Surgical resection is the cornerstone of treatment for patients with localized gastric cancer. In the CLASSIC trial, capecitabine plus oxaliplatin for 6 months following D2 gastrectomy has been established as a standard postoperative adjuvant treatment for patients with operable stage II or III gastric cancer. However, due to adverse events, chemotherapy was discontinued in 50 patients (10%), primarily due to nausea, neutropenia, decreased appetite, peripheral neuropathy, diarrhea, and vomiting. At the 2017 ASCO Annual Meeting, Grothey et al. reported the results of the IDEA trial. For patients with lymph node-positive colon cancer (stage III), some patients may benefit from a shorter duration of postoperative chemotherapy. An analysis of six clinical trials involving over 12,800 patients showed that 3 months of chemotherapy was nearly as effective as 6 months for patients with a lower recurrence risk, while also causing fewer side effects, particularly nerve damage. Based on the findings from the IDEA trial, we hypothesize that a 4-month regimen of capecitabine plus oxaliplatin may also benefit patients following D2 gastrectomy while reducing adverse events compared with the standard 6-month regimen.

Interventions

DRUGOxaliplatin

Oxaliplatin 130 mg/m2

DRUGCapecitabine

Capecitabine 1000 mg/m2

Sponsors

Fudan University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

1. Age between 18 and 80 years. 2. Histologically confirmed adenocarcinoma of the stomach or gastroesophageal junction, staged as II, IIIA, or IIIB according to the American Joint Committee on Cancer classification system, eighth edition. 3. Underwent R0 gastrectomy with D2 lymphadenectomy. 4. No other concurrent malignancies. 5. Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1 6. No contraindications to chemotherapy.

Exclusion criteria

1. Receipt of preoperative treatment, including radiation therapy, chemotherapy, or immunotherapy. 2. Patients with stage I, IIIC, or IV gastric cancer. 3. Severe cardiac, pulmonary, neurologic, hepatic, or other major organ dysfunction. 4. Known or suspected drug allergies. 5. Pregnant or lactating women.

Design outcomes

Primary

MeasureTime frameDescription
DFS3 yearsDisease-free survival, defined as the time from randomization to the first occurrence of disease recurrence or death from any cause.

Secondary

MeasureTime frameDescription
Adverse Events6 monthsAdverse Events of Chemotherapy
OS3 yearsOverall survival, defined as the time from randomization to death from any cause.

Countries

China

Contacts

PRINCIPAL_INVESTIGATORDazhi Xu, PHD, MD

Fudan University

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 25, 2026