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PeRioperative Omega Three and the Effect on ImmuNity

A Randomized Controlled Trial of Standard or DHA/EPA Supplemented Enteral Nutrition in Patients Undergoing Laparoscopic Colorectal Surgery

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03598413
Acronym
PROTEIN
Enrollment
40
Registered
2018-07-26
Start date
2018-07-16
Completion date
2019-09-19
Last updated
2022-09-28

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

Conditions

Colorectal Cancer, Complication, Postoperative, Infected Wound, Nutritional Deficiency, Phagocytic Dysfunction, Sarcopenia, Surgery, Surgery--Complications, Surgical Site Infection

Keywords

enhanced recovery, perioperative nutrition, macrophages, omega 3 fatty acids

Brief summary

Bowel cancer is the second most common cause of cancer-related death in the UK, with 50,000 new cases and over 15,000 deaths annually. Surgery is the mainstay of treatment and the most common complications are an infection of the wound or lungs. These can lengthen hospital stay, reduce the quality of life, and even increase the risk of death. Bowel cancer patients are often malnourished. Optimising nutrition with supplements such as fish-oils can improve the immune response of patients, helping prevent such complications, shorten hospital stay, improve quality of life and overall survival.

Detailed description

Bowel cancer is the second most common cause of cancer-related death in the UK, with 50,000 new cases and over 15,000 deaths annually. Surgery is the mainstay of treatment and the most common complications are an infection of the wound or lungs. These can lengthen hospital stay, reduce the quality of life, and even increase the risk of death. Bowel cancer patients are often malnourished. Optimising nutrition with supplements such as fish-oils can improve the immune response of patients, helping prevent such complications, shorten hospital stay, improve quality of life and overall survival. We are increasingly familiar with the term BMI, body mass index, which we use to categorise obesity in healthcare. A newer term in this realm is that of sarcopenia, a low muscle mass relative to your size, unrelated to your weight or fat density. This can be measured in a number of ways, including on a scan performed routinely in bowel cancer care, a CT scan. Evidence shows that people with low muscle mass, irrespective of their overall weight, experience more complications than those who have healthier amounts of muscle. We hypothesise that patients supplemented with fish oils both before and after surgery will experience an enhancement of their immune response, and subsequently encounter fewer infectious complications, a shorter length of hospital stay and improved quality of life. We also predict fewer patients having extra nutrition before and after surgery will develop sarcopenia and avoid the risks associated with that condition. The trial will only take place in those with bowel cancer who are planned to have a keyhole operation, as this is now the most commonplace approach to surgery. We plan to recruit 40 patients, 20 to receive the supplement, and 20 to form a comparison or control group.

Interventions

DIETARY_SUPPLEMENTOmega-3

200ml, pre-mixed oral nutritional supplement supplying 1.42g per bottle of EPA and DHA.

Sponsors

Royal Surrey County Hospital NHS Foundation Trust
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
PREVENTION
Masking
SINGLE (Investigator)

Masking description

Single blind trial, analysis of all samples blinded to investigation team.

Intervention model description

Prospective Randomised controlled trial

Eligibility

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

Inclusion criteria

* Patients with colorectal cancer undergoing elective laparoscopic colorectal resection. * Adult aged 18 or over. * Capacity to consent

Exclusion criteria

* Pre-existing diagnosis of Diabetes mellitus, requiring medication. * Consumption of \> 3 alcoholic drinks/day * Already on omega-3 supplementation * Pregnant * Patients on heparin infusion perioperatively * Patients on immunosuppressive drugs * Regular / Daily smokers * Patients requiring a blood transfusion at any point day 7 pre-op to day 1 post operatively. * Vegan or Vegetarian * Allergy to cows milk or wheat

Design outcomes

Primary

MeasureTime frameDescription
Changes in Phagocytosis of pathogensBaseline [2-4 weeks before surgery], Day of Surgery [day 7 post nutritional supplementation], Day 1 post surgery [day 8 post supplementation].Phagocytosis of E.Coli, S.Aureus and Candida measured with flow cytometry
Changes in cell membrane compositionBaseline [2-4 weeks before surgery], Day of Surgery [day 7 post nutritional supplementation], Day 1 post surgery [day 8 post supplementation].Using gas chromatography, measuring the percentage of omega-3 within cell membranes

Secondary

MeasureTime frameDescription
Length of hospital stayA maximum of 90 daysLength of stay in days as per electronic discharge records
SarcopeniaBaseline [Pre-operative staging CT scan] and 6 month +/-2 monthsChanges in body composition measured on CT scan
Infectious complications30 daysDescriptions laid out in supplement 1 for diagnostic criteria
Changes in Hand grip strengthBaseline [Pre-operative staging CT scan] and 6 month +/-2 monthsPhysical measurement of hand grip strength using hand dyanamometer to assist in diagnosis of sarcopenia / functional status.
Quality of Life (EORTC: QLQC30)Baseline and 3 weeks post surgery +/- 7 daysQuality of life questionnaire EORTC: QLQC30. A 30 element validated questionnaire. Symptoms are grouped into scales: Physical Function, Role Function, Emotional Function, Cognitive Function, and Social Function. In addition symptom scales including: Fatigue, Nausea, vomiting, pain, dyspnoea, insomnia, appetite loss, constipation, diarrhoea, and financial difficulties. 28 of the scales range from 1 to 4, 4 being most symptomatic, 1 least so. The 2 remaining scales for overall health and quality of life are scaled 1-7, with 7 being the best and 1 the worst. The 30 questions can be combined for a global score, in which instance the 2 global scales are reversed so that 7 becomes the worst quality of life or health and 1 the best.
Non-infectious complications30 daysDescriptions laid out in supplement 1 for diagnostic criteria

Countries

United Kingdom

Outcome results

None listed

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