Eucaloric Ketogenic Diet in COVID-19 Cytokine Storm Syndrome (ketocovidiet)
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ClinicalTrials.gov Identifier: NCT04492228 |
Recruitment Status : Unknown
Verified September 2020 by Sukkar Samir, MD, Ospedale Policlinico San Martino.
Recruitment status was: Recruiting
First Posted : July 30, 2020
Last Update Posted : September 30, 2020
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Covid 19 pandemia is causing millions of deaths worldwide. To date, the evidence gathered suggests that the subgroup of patients who present the most serious clinical feature of COVID-19 could have a "cytokine storm syndrome" better defined as secondary hemophagocytic lymphohistiocytosis (sHLH), characterized by acute respiratory distress (ARDS) and septic shock, followed by multi-organ failure due to an excess of cytokines induced by the inflammatory response to the virus.
The reduction of phagocytic hyperactivation represents a possible treatment for HLH.
Lowering the availability of glucose, the only substrate of aerobic glycolysis and of the Warburg effect in activated macrophages, through the use of ketogenic diets could be a promising solution.
Actually diet is not recognized as impacting on the evolution of COVID-19, however, scientific literature data show that a low carbohydrate and high lipid diet (ketogenic diet) can inhibit inflammation and lead to a clinical improvement of respiratory function.
The hypothesis of this study is that the administration of a ketogenic diet could improve mortality, lower the access to ICU and the need of NIV.
The plan is to enroll 50 patients with COVID 19 infection and administer a 1:4 ketogenic formula during hospitalization in order to verify these outcomes.
Condition or disease | Intervention/treatment | Phase |
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Covid19 Ketogenic Dieting | Other: Ketogenic diet | Not Applicable |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 100 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Intervention Model Description: | This is a controlled, randomized, open-label, clinical trial designed to determine whether a ketogenic diet,in comparison with a standard diet, improves mortality and reduces ventilator requirements or ICU access in patients with coronavirus disease. The study team will prospectively enroll 50 patients with COVID-19 infection administering a 4:1 ratio ketogenic formula (both enteral or parenteral) and 50 with standard diet |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | Randomized Open Controlled Clinical Trial to Evaluate the Effectiveness of a Eucaloric Ketogenic Nutrition in Comparison With a Standard Nutrition in Covid-19 Disease in Reducing Cytokine Storm Syndrome and ARDS |
Actual Study Start Date : | September 1, 2020 |
Estimated Primary Completion Date : | December 31, 2020 |
Estimated Study Completion Date : | May 30, 2021 |

Arm | Intervention/treatment |
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Experimental: Ketogenic diet group
patients with COVID-19 feeding with a ketogenic diet (4.1 formula)
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Other: Ketogenic diet
Eucaloric Ketogenic diet % composition : protein (27%), lipids (67%), carbohydrates (6%: <30g/day). In pts in artificial nutrition : Eucaloric Ketogenic parenteral nutrition % composition : aminoacids (27%), lipids (67%), carbohydrates (6%: <30g/day) |
No Intervention: Standard diet group
patients with COVID-19 feeding with a standard diet
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- Mortality rate in the ketogenic group diet vs standard one [ Time Frame: Up to nine months ]
- Access in Intensive Care Unit in the ketogenic group diet vs standard one [ Time Frame: Up to nine months ]
- Need of Non Invasive Ventilation in the ketogenic group diet vs standard one [ Time Frame: Up to nine months ]
- Combined endpoint "mortality, ICU transfer or need for CPAP or intubation" in the ketogenic group diet vs standard one [ Time Frame: Up to nine months ]

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Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- documented clinical diagnosis of COVID-19 supported by clinical features and by the positivity to at least one pharyngeal swab
- age ≥18 years
- informed written consent
Exclusion Criteria:
- Type I diabetes
- Type II diabetes in therapy with insulin, sulphonylureas, repaglinide, GLP-1 analogues, SGLT2 inhibitors
- Recent acute cardiovascular event (within a month)
- Food allergies to diet components
- Any metabolic disorder capable of influencing gluconeogenesis
- Clinical history of severe hypertriglyceridemia with or without pancreatitis
- Pregnancy and/or breastfeeding

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04492228
Contact: Samir G Sukkar, MD | 0105553985 | samir.sukkar@hsanmartino.it |
Italy | |
Samir Giuseppe Sukkar | Recruiting |
Genova, Italy, 16132 | |
Contact: Samir G Sukkar, MD 00393356098178 samir.sukkar@hsanmartino.it | |
Contact: Livia Pisciotta, MD 00393471055508 livia.pisciotta@unige.it |
Responsible Party: | Sukkar Samir, MD, Dr Samir Giuseppe Sukkar, Ospedale Policlinico San Martino |
ClinicalTrials.gov Identifier: | NCT04492228 |
Other Study ID Numbers: |
KETOCOV-1 |
First Posted: | July 30, 2020 Key Record Dates |
Last Update Posted: | September 30, 2020 |
Last Verified: | September 2020 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
COVID-19 Cytokine Release Syndrome Respiratory Tract Infections Infections Pneumonia, Viral Pneumonia Virus Diseases Coronavirus Infections Coronaviridae Infections |
Nidovirales Infections RNA Virus Infections Lung Diseases Respiratory Tract Diseases Systemic Inflammatory Response Syndrome Inflammation Pathologic Processes Shock |