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Effect of Different Diets on Isotretinoin Users to Serum Lipid Levels

The Effect of the Mediterranean Diet and Low Cholesterol Diet on Serum Lipid Levels in Individuals Receiving Isotretinoin Treatment

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06250673
Enrollment
46
Registered
2024-02-09
Start date
2023-11-01
Completion date
2024-05-28
Last updated
2025-05-01

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

Conditions

Acne Cystic, Diet, Healthy

Keywords

Mediternian Diet Low Cholesterol Diet Isotretinoin

Brief summary

This research was planned to prevent secondary hyperlipidemia, which may occur due to isotretinoin used in the treatment of severe acne, with diet. There will be three different groups and followed for 12 weeks. Groups will be; Mediterranean Diet, Low Cholesterol Diet (\<200 mg/day) and the Control Group.

Detailed description

Isotretinoin has been officially used to treat severe cystic acne since the 1980s. The drug is a retinoic acid derivative and works by reducing the size of the sebaceous glands and sebum production. Thanks to this effect, the lipid profile on the skin surface changes and the bacterial skin flora decreases. The drug also has a side effect of increasing blood lipids, causing secondary hyperlipidemia. This research examines the effects of low cholesterol diet and Mediterranean diet on blood lipids, which are implemented to prevent the increase of blood lipids. The research was designed as an experimental intervention research and will conducted at Nevruz Erez State Hospital Skin and Venereology Polyclinics between November 2023 and April 2024, with volunteers who meet the research criteria. H0: Secondary hyperlipidemia due to isotretinoin use cannot be prevented by diet. H1: Secondary hyperlipidemia due to isotretinoin use can be prevented by diet. People who volunteer to participate in the research will be informed in detail about the research with the Informed Consent Form and then will be grouped by the list method. At the beginning of the research, the Personal Information Form, the Mediterranean Diet Adherence Scale and the Food Consumption Frequency form prepared by the researcher will be applied to all patients who volunteer to participate in the research. The results of Biochemistry and Hemogram tests performed by the doctor will be recorded. During the research, the blood findings (Total Cholesterol, HDL-Cholesterol, LDL-Cholesterol, Triglyceride, ALT, AST and Hemogram) of the patients in each group will be checked monthly by the Skin and Venereology Polyclinic Physician who follows their treatment, and the patients' isotretinoin doses will be completely adjusted by the doctor. No intervention other than diet will be made by the researcher. Sample size of the study (n); Effect size (d) = 0.94, significance level (α) = 0.05, power of the test (1-β) = 80% were entered into the Gpower program and calculated as 32(n) for two groups. This research will be conducted with three different groups, in this case, it is planned to complete the research on a total of at least 48 patients, namely the Mediterranean Diet Group (n1) = 16, the Low Cholesterol Diet Group (n2) = 16 and the Control Group (n3) = 16. Considering that the research period is 12 weeks, 25% more people will be recruited for each group in case the patients leave the study or are excluded from the research. In this situation; Mediterranean Diet Group (n1) = 20 people, Low Cholesterol Diet Group (n2) = 20 people, Control Group (n3) = 20 people, Total Sample Size (n) = 60 people. The total research duration for all groups participating in the research is planned to be 12 weeks.

Interventions

DIETARY_SUPPLEMENTDiet experiment

For the isotretinoin users

Sponsors

Okan University
CollaboratorOTHER
Igdir University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)

Intervention model description

A total of 46 people, 16-16-14.

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
Yes

Inclusion criteria

Patients must be treated for acne and must be new to oral isotretinoin treatment, Aged must be 18 - 65 years old, Body Mass Index must be between 18-24.99 kg/m2, LDL Cholesterol must be \<130 mg/dL, Triglyceride must be \<150 mg/dL.

Exclusion criteria

Cardiovascular diseases, Kidney diseases, Eating disorders, Hyperlipidemia, Insulin resistance, Metabolic diseases, Diabetes, And who used the drugs for the treatment of these diseases, BMI \<18 kg/m2, \>25 kg/m2 Aged \<18 and \>65 will not be included in the study.

Design outcomes

Primary

MeasureTime frameDescription
Biochemical Tests4 weeks, 8 weeks, 12 weeksParticipants ' blood lipids will be monitored since the research aims to prevent seconder hyperlipidemia. HDL, LDL, Total Cholesterol, Triglyceride, ALT and AST values will be checked monthly.
Mediterranean Diet Adherence Scale4 weeks, 8 weeks, 12 weeksWithin the scope of the research, data will be evaluated with the Mediterranean Diet Adherence Scale, Food Consumption Frequency, Personal Information-Check Form and patients' biochemical test results. The validity and reliability study of the Mediterranean Diet Adherence Scale was conducted for Turkey in 2020 by Pehlivanoğlu et al. The scale consists of 14 questions and the answers to these questions are scored between 0 and 1 by the researcher. If the total score obtained from the scale is ≤5, it means low compliance with the Mediterranean diet, if it is between 6-9 points, it means medium compliance with the Mediterranean diet, and if the score is ≥10, it means high compliance with the Mediterranean diet.

Secondary

MeasureTime frameDescription
Food Consumption Frequency Form4 weeks, 8 weeks, 12 weeksWithin the scope of the research, data will be evaluated with the Mediterranean Diet Adherence Scale, Food Consumption Frequency, Personal Information-Check Form and patients' biochemical test results. With the help of the Food Consumption Frequency Form which was created by the researcher, patients' compliance with their diet and how much cholesterol and fat they consume will be checked and recorded monthly.

Other

MeasureTime frameDescription
Personal Information-Check Form4 weeks, 8 weeks, 12 weeksWith this form, the meal frequencies, medication doses, and physical activities of the participants will be recorded for later use in comparisons.

Countries

Turkey (Türkiye)

Outcome results

None listed

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