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Nutritional Safety and Metabolic Benefits of Oncometabolic Surgery for Obese Gastric Cancer Patients

Nutritional Safety and Metabolic Benefits of Oncometabolic Surgery (Long Limb Uncut Roux-en Y Gastrojejunostomy) for Obese Gastric Cancer

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03067012
Acronym
ONCOMETAB
Enrollment
20
Registered
2017-03-01
Start date
2015-09-01
Completion date
2017-07-30
Last updated
2019-04-11

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

Conditions

Gastric Cancer, Metabolic Disease, Oncology

Keywords

Oncometabolic surgery, Long limb uncut Roux-en-Y gastrojejunostomy, Obesity, Diabetes, Early gastric cancer

Brief summary

The metabolic effect of oncometabolic surgery (long limb Roux-en Y reconstruction) for early gastric cancer patients has been revealed in a few pilot studies. However, the nutritional safety has not been dealt with in previous literatures. This is a prospective pilot study for evaluating the nutritional safety and metabolic benefits of oncometabolic surgery for obese early gastric cancer patients.

Detailed description

We performed long limb uncut Roux-en Y gastrojejunostomy (uRYGJ) in 20 patients with clinical T1N0 stage and preoperative body mass index (BMI) ≥ 32.5 kg/m2 or ≥ 27.5 kg/m2 with co-morbidities between September 2015 and July 2016. The primary endpoint was the incidence of micronutrients' deficiency (iron, folate, vitamin B12) at postoperative 1 year and secondary endpoints were anemia incidence, BMI change and remission rates of co-morbidities.

Interventions

OTHEROncometabolic reconstruction

The length of biliopancreatic limb is 50cm and the length of Roux limb is 100cm. (long limb uncut Roux-en-Y gastrojejunostomy) These limbs are longer than the conventional uncut Roux-en-Y reconstruction for gastric cancer patients.

Sponsors

Seoul National University Bundang Hospital
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Lesion located on distal or mid stomach Lesion confined to submucosa (cT1b) : Early gastric cancer No evidence of metastatic enlarged lymph nodes Preoperative body mass index (BMI) ≥ 32.5 kg/m2 or ≥ 27.5 kg/m2 with co-morbidities

Exclusion criteria

* Being unable to understand the risks, benefits and compliance requirements of this trial Non- Korean speaker American society of anesthesiology (ASA) class IV or higher Other malignancy within 5 years.

Design outcomes

Primary

MeasureTime frameDescription
micronutrients' deficiency (iron, folate, vitamin B12)postoperative 1-yearIron deficiency : serum ferritin \< 20 μg/dL, Vitamin B12 deficiency : serum vitamin B12 \< 200 pg/mL,

Secondary

MeasureTime frameDescription
anemia incidencepostoperative 1-yearIron deficiency anemia : anemia with concomitant iron deficiency, Anemia of chronic illness : anemia with serum ferritin \> 20 μg/dL, Anemia from vitamin B12 deficiency : megaloblastic anemia (MCV \>100 fL) with vitamin B12 deficiency
Body mass index (BMI) changepostoperative 1-yearPreoperative BMI minus postoperative BMI
Remission rates of co-morbiditiespostoperative 1-year

Outcome results

None listed

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