Denne side blev automatisk oversat, og nøjagtigheden af ​​oversættelsen er ikke garanteret. Der henvises til engelsk version for en kildetekst.

Effect of Chromium Weight Reduction on Adult Asthma Control (ECWAC)

11. juli 2026 opdateret af: Amani Mohamed, Cairo University

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.

Studieoversigt

Status

Ikke rekrutterer endnu

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Study Design and Setting This study is a phase IV randomized controlled clinical trial (RCT) involving 60 adult patients diagnosed with asthma. Participants will be recruited from the outpatient clinic and pulmonary function unit of the Chest Department at Ain Shams University Hospitals.

Study Type: Phase IV randomized controlled clinical trial (RCT) Study Setting: Outpatient clinic and pulmonary function unit, Chest Department, Ain Shams University Hospitals Study Population: Adult patients with asthma, obesity, and diabetes mellitus

Sampling and Randomization Participants will be randomly assigned to study groups using computer-generated randomization sequences. Allocation concealment will be ensured through the use of sealed, opaque envelopes.

Ethical Considerations

The study protocol will be explained clearly to all eligible participants prior to enrollment.

The study will commence only after obtaining approval from the Ethical Committee of the Faculty of Medicine, Ain Shams University.

Written informed consent will be obtained from all participants prior to inclusion.

Participant safety will be prioritized, and all efforts will be made to minimize potential risks.

Confidentiality and anonymity of participant data will be strictly maintained. All participants will have an equal chance of being assigned to either study group.

No deceptive practices will be used during the study. Participants will have the right to withdraw from the study at any time without any consequences.

Study Procedures

All eligible participants will undergo the following assessments:

Demographic Data Collection: Age, sex, smoking status, and body mass index (BMI) Clinical Assessment: Detailed medical history including environmental exposures, potential risk factors, comorbidities, and duration of disease

Concomitant Care All participants will continue receiving standard asthma therapy throughout the study period.

Participants will be instructed to maintain a consistent intake of chromium-rich foods during the study to avoid dietary confounding.

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

60

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ingen

Beskrivelse

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

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Ingen indgriben: Standard of Care

All participants continue standard asthma therapy and management

- Study participants will be instructed to keep their dietary consumption of chromium rich foods constant all over the study period.

Eksperimentel: Chromium Picolinate

Two tablets collectively containing 400 mcg of Chromium picolinate which is equivalent to 49.4 mcg of elemental chromium.

Taken once daily for 12 weeks.

Two tablets collectively containing 400 mcg of Chromium picolinate which is equivalent to 49.4 mcg of elemental chromium.

Taken once daily for 12 weeks.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Change in asthma control
Tidsramme: from baseline to 12 weeks
Change in Asthma Control Test (ACT) Score (points; range 5-25)
from baseline to 12 weeks
Spirometry
Tidsramme: from baseline to 12 weeks
Forced Expiratory Volume in 1 second (FEV₁) - L or % predicted
from baseline to 12 weeks
Frequency of rescue medication use
Tidsramme: from baseline to 12 weeks
Frequency of Asthma Inhalers used
from baseline to 12 weeks
Asthma exacerbation frequency
Tidsramme: from baseline to 12 weeks
Asthma exacerbation frequency
from baseline to 12 weeks

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Lipid Profile
Tidsramme: From baseline to 12 weeks
Change in fasting total, HDL, LDL Cholesterol in addition to the triglycerides
From baseline to 12 weeks
Anthropometric Measurements
Tidsramme: From baseline to 12 weeks
Change in Body Mass Index (BMI) Unit of Measure: kg/m²
From baseline to 12 weeks
Incidence of Treatment-Emergent Adverse Events
Tidsramme: Monthly from baseline to 3 months
The outcome measure will assess the frequency of adverse effects occurring during the study period.
Monthly from baseline to 3 months

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Samarbejdspartnere

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Anslået)

20. august 2026

Primær færdiggørelse (Anslået)

20. august 2027

Studieafslutning (Anslået)

20. august 2027

Datoer for studieregistrering

Først indsendt

8. april 2026

Først indsendt, der opfyldte QC-kriterier

11. juli 2026

Først opslået (Faktiske)

14. juli 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

14. juli 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

11. juli 2026

Sidst verificeret

1. juli 2026

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Andre undersøgelses-id-numre

  • FMASU R62/2026 (Registry Identifier: Ain Shams Faculty of Medicine Institutional Review Board)

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

JA

IPD-planbeskrivelse

De-identified individual participant data underlying the results reported in publications arising from this study, including demographic, clinical, and outcome data, will be made available.

IPD-delingstidsramme

De-identified individual participant data will be made available beginning 6 months after publication of the primary study results and will be available indefinitely.

IPD-delingsadgangskriterier

Data will be available upon reasonable request to the principal investigator. Requests will be reviewed for scientific merit and compliance with applicable ethical and regulatory requirements. Data-sharing agreements may be required before access is granted.

IPD-deling Understøttende informationstype

  • STUDY_PROTOCOL
  • SAP
  • ICF
  • ANALYTIC_CODE
  • CSR

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

Studerer et amerikansk FDA-reguleret lægemiddelprodukt

Ingen

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

produkt fremstillet i og eksporteret fra U.S.A.

Ingen

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .