Sickle Cell, Pain and Mediterranean Diet

Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18+
SponsorUniversity of Illinois at Chicago

About this trial

The goal of this study is to compare pain levels in individuals with Sickle Cell Disease while following the Mediterranean Diet to pain levels while following their usual diet.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Sickle Cell Disease Diagnosis

Chronic non-vaso-occlusive pain experienced on average ≥ 3 days per week for > 6 months (based on a response of "Most days," "Every day," or "Some days" and not "Never" to the question "In the past 6 months, how often have you had pain?")

Ability to speak, read, write, and understand English

A Mediterranean Eating Pattern for Americans (MEPA-III) score <13, indicating that they do not follow a Mediterranean diet.

Disqualifiers

Having taken systemic antimicrobials (to treat an infection in the previous 4 weeks)

History of colon cancer or inflammatory bowel disease (given potential untoward effects on the gut microbiome)

History of Clostridium difficile infection in the preceding 12 weeks; (4) unable to agree to maintain physical activity at the current level for the duration of the study

Currently following a Mediterranean diet, vegan diet, or dietary restrictions (e.g., religious, food intolerance/allergy) that preclude adoption of a Mediterranean diet

Trial design

Design model

Crossover

Treatments tested in this trial

  • Mediterranean Diet

    Other intervention

    Mediterranean Diet foods will be provided for 4 weeks.

  • Usual Diet

    Other intervention

    Participants will consume their typical at home-diet.

Treatment groups

30 Participants
are divided into 2 treatment groups
Group A: Mediterranean DietExperimental treatment 2 interventions
Group B: Usual DietActive comparator 2 interventions

Trial outcomes

Primary outcomes

1

Serum and Fecal Short Chain Fatty Acids

Mass spectrometry methods for butyrate, propionate, acetate

Time frame
Baseline and day 27 or 28 of each diet
2

Serum and Fecal Bile Acid Metabolites

Mass spectrometry methods for primary and secondary bile acid derivatives

Time frame
Baseline and day 27 or 28 of each diet

Secondary outcomes

1

Gut Microbiota Composition

16S rRNA amplicon

Time frame
Baseline and day 27 or 28 of each diet
2

Chronic Pain

Patient-Reported Outcomes Measurement Information System (PROMIS) Pain Intensity Survey will be used to measure the experience of chronic pain on a 1-10 scale. The higher the number, the greater the chronic pain experience.

Time frame
Baseline and day 27 or 28 of each diet
3

Diet adherence

Checklist- participants will keep a checklist of foods consumed during the Mediterranean diet intervention period.

Time frame
Daily up to 4 weeks during the Mediterranean diet intervention
4

Diet adherence

Photos of uneaten foods will be texted to researchers to see which foods were not consumed.

Time frame
Daily up to 4 weeks during the Mediterranean diet intervention

Other outcomes

Sponsors and contacts

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