Multiple Sclerosis and the Effects of Ketogenic Diet Therapy

Condition(s) studied

Investigational drug(s) / intervention(s)

Mediterranean Diet: The MedDiet will be planned according to the Mediterranean diet pyramid

Ketogenic Diet: Modified Atkins diet with a maximum of 20 g of carbohydrates per day.

Control group: The control group will be asked to continue their dietary and lifestyle habits

Study summary

Multiple sclerosis (MS) is an inflammatory and immune-mediated neurological disease with multifactorial etiology. The specific etiopathogenetic mechanisms of MS are still unknown but it is clear that it results from a combination of genetic and environmental factors. Several studies have reported the possible role of diet as a risk factor for MS and its progression. To date, many dietary patterns and their association with MS have been studied, but data is still limited and inconclusive. Mediterranean Diet (MedDiet) has been associated with a lower risk of developing MS, compared to a Western-style diet. In one of investigators' studies, higher MedDiet adherence was associated with a 6-fold greater likelihood of having lower disease severity than those with low adherence. A significant restriction of carbohydrates (up to ketogenesis) can have beneficial effects on various parameters (inflammatory markers, oxidative stress, altered glucose metabolism) which are altered in subjects with MS. Ketogenic diet therapies (KDTs) have been recommended mainly for children with drug-resistant epilepsy, but in recent years they have been applied to Multiple Sclerosis. Preclinical studies in animal models evaluating the efficacy of KDTs in experimental autoimmune encephalomyelitis (EAE) found a beneficial effect of diet in slowing of disease progression, improvement of motor disability, reduction of inflammatory cytokines and reactive oxygen species. In a randomized study, improvements in health-related quality of life (HRQL) scores and a slight decrease in EDSS scores were found. An open-label, single-arm study of 20 patients with RRMS also reported that, after 6 months of MAD, no subjects had new or enlarging FLAIR/T2 lesions, with a significant improvement in the EDSS score, the Modified Fatigue Impact Scale subscales and arm. A 3-arm parallel-arm randomized controlled pilot study was planned to determine the effectiveness of a modified Atkins diet (MAD) compared to a Mediterranean diet (MedDiet) on quality of life in a population with MS.

Eligibility

Primary outcome measure(s)

• The CPH subscale of the Multiple Sclerosis Quality of Life-54 (MSQoL -54) — Evaluation at baseline and after 6 months
  Quality of life will be assessed in terms of physical health referring to the CPH subscale of the MSQoL -54 after 6 months of treatment. ITS consists of 52 items grouped in 12 subscales plus two single items. All scores are transformed to scale from 0-100 and then added within each subscale to obtain the subtotal. By dividing the subtotal by the number of responses, the final score of the subscale is obtained. The scores final are in turn multiplied by a specific number at each subscale; adding the scores transformed in this way there is a value for "physical health" and one for "mental health". These two values, added, give the final score of the MSQoL-54. The higher scores demonstrate better HRQoL in patients.

Trial sites (1)

More IRCCS National Neurological Institute "C. Mondino" Foundation trials in Italy

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