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Sponsor: Cairo University
Conditions: Asthma Chronic, Bronchial Asthma
Interventions: Chromium picolinate
This phase IV randomized controlled trial is designed to evaluate the effects of chromium picolinate supplementation in obese adults with stable asthma. A total of 60 participants will be recruited from Ain Shams University Hospitals and randomly assigned to receive either 400 mcg of chromium picolinate daily or a matching placebo for 12 weeks, in addition to standard asthma therapy. The study aims to explore the interaction between metabolic dysfunction and asthma, as obesity-related asthma is often associated with systemic inflammation, insulin resistance, and dyslipidemia. These factors may contribute to poorer asthma control and impaired pulmonary function, and therefore represent potential targets for adjunctive therapeutic interventions such as chromium supplementation.
Sex: ALL
Age: 18 Years to 65 Years
Healthy volunteers: No
Study type: INTERVENTIONAL
Inclusion Criteria: * Age: 18-65 years * Confirmed asthma diagnosis according to GINA criteria (7) * Asthma stable for at least 4 weeks (no acute exacerbation) * BMI of 30 kg/m² (obese category) * Stable inhaled corticosteroid + LABA regimen in the last 4 weeks * The patient is compliant on his asthma medication * Willing and able to provide informed consent * willing to continue in the study, follow investigator instructions Exclusion Criteria: * \- Recent asthma exacerbation (within the last 4 weeks) * Any change in asthma medications within 4 weeks * renal or hepatic disease * Use of lipid-lowering drugs or supplements in the past 3 months * Use of Vitamin C, prostaglandin inhibitors, such as aspirin, oxalate, and antacids * Current pregnancy or lactation * Known allergy to chromium or adverse reaction to supplementation * Participation in another interventional study in the past month * History of heavy metal toxicity or chromium sensitivity * Being on any weight control diet * Being on a supplement containing chromium