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Clinical Trial Summary

The purpose of this study is to understand how a pre-operative nutritional intervention alters the gut microbiome and improves outcomes after major head and neck cancer surgery.


Clinical Trial Description

Head and neck cancer (HNC) arises from the mucosal lining of the upper aerodigestive system. Tumor-associated pain and physical obstruction from the tumor can impair a patient's ability to eat, and this combined with the catabolic nature of cancer leads to significant weight loss.HNC patients have a high burden of moderate to severe malnutrition and cachexia with a rate of approximately 40%, and malnourishment at the time of HNC diagnosis is associated with poor survival. In addition, these malnourished patients have longer post-operative hospital length of stay, increased post-operative complications including infection, delayed wound healing, muscle weakness, impaired cardiac and respiratory symptoms, reduced response to adjuvant treatment, and decreased quality of life. Inflammation increases the risk of malnutrition and may play a role in the suboptimal response to certain nutrition interventions. Changes in diversity and relative abundance of gut bacteria in malnourished patients with head and neck cancer after a pre-operative nutrition intervention will be determined. Post-operative outcomes including wound complications, other surgical and medical complications, hospital length of stay, unintended readmission within 30 days and mortality after a pre-operative nutrition intervention will be recorded and compared to a historic control. Finally, changes in known markers of nutritional status (albumin, prealbumin, c-reactive protein (CRP), transferrin, thyroid stimulating hormone (TSH), comprehensive metabolic panel (CMP), and complete blood count (CBC)) and systemic inflammatory markers (Interleukin (IL)-1β, IL-6, IFNγ, TNF, IL-2, IL-4, IL-10, IL-12, IL-17) will be measured after a pre-operative nutrition intervention. The pre-operative nutrition intervention is Nestlé Impact Advanced Recovery Immunonutrition administered orally or through a feeding tube two times daily for 5 days leading up to the date of surgery (day -5 to -1). Nestlé Impact Advanced Recovery provides 280kcal, 11g total fat, 20g carbohydrates, and 26g protein per unit (250mL). In addition, it is enriched with L-arginine and omega-3 fatty acids, two components found to be essential for the beneficial effect of immunonutrition in a systematic review. Immunonutrition is a specially formulated diet that contains nutrients to modulate inflammation. Pre-operative nutrition interventions with immunonutrition have demonstrated a decrease in post-operative complications (35% vs 50%, p=0.034) and unplanned readmissions and shortened hospital stays (17 vs 6 days, p<0.001) in patients with HNC. Studies have shown that dietary interventions can improve wound healing and post-operative survival. Currently, nothing is known about the composition of the gut microbiome in malnourished patients with HNC and how that composition changes with an immunonutrition intervention. There is evidence that remote tissue healing is influenced by the gut microbiome. In mice undergoing a pre-operative nutrition intervention, there is a shift in the gut microbiome composition from Proteobacteria and Firmicutes to Bacteroidetes, which produce metabolites that impact the systemic immune system. The study hypothesis is the gut microbiome can serve as a marker of readiness for major surgery after a pre-operative nutrition intervention in patients with HNC. The investigators aim to treat malnourished patients with HNC with immunonutrition and examine changes in the gut microbiome composition to define a gut microbiome associated with decreased post-operative complications, improved markers of nutritional status, and decreased markers of systemic inflammation. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05061316
Study type Interventional
Source University of Alabama at Birmingham
Contact Carissa M. Thomas, MD, PhD
Phone (205) 801-7887
Email [email protected]
Status Recruiting
Phase N/A
Start date November 2021
Completion date November 2025

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