- ICH GCP
- Amerikanska kliniska prövningsregistret
- Klinisk prövning NCT00763477
Ghrelin in Cystic Fibrosis (ghrelin)
The Effect of Ghrelin on Appetite and Immune Function in Patients With Cystic Fibrosis
Background to ghrelin Ghrelin is a naturally occurring hormone found in the blood which stimulates appetite. In healthy individuals, levels of ghrelin are high before a meal and falls afterwards. Previous studies have shown that giving ghrelin (by injection) to thin patients with renal failure and cancer increases their food intake. Furthermore, addition of ghrelin may also reduce inflammation within the body. Cystic Fibrosis (CF) is a genetic disease which frequently results in recurrent lung infections (leading to progressive inflammatory lung damage) and low body weight. Low body weight in CF is associated with increased lung infections, rapidly worsening lung function and a shortened life expectancy.
The researchers postulate that administration of extra ghrelin to CF patients with low body weight may increase food intake and reduce lung inflammation. If successful, this study might identify ghrelin as a potential therapy for CF patients to improve nutrition, decrease lung inflammation and thereby improve survival.
Studieöversikt
Detaljerad beskrivning
The purpose of this study is to investigate the role of a naturally occuring hormone called ghrelin on appetite, energy expenditure and immune function in patients with cystic fibrosis.
Theoretical framework:
Despite advances in the molecular understanding of the disease, life-expectancy in Cystic Fibrosis (CF) remains severely limited. Reduced body-weight is associated with increased inflammatory lung damage and is a major predictor of mortality in CF patients. Malnutrition is highly prevalent in the CF population and results from both poor food intake and excessive energy expenditure. A therapy which improves nutrition may therefore have a significant effect on the prognosis of this disease. Ghrelin is the only physiological circulating factor that is known to increase food intake. Administration of acylated ghrelin to humans increases both hunger and food intake and has been found to increase appetite in chronic disease states associated with anorexia and weight loss (such as cancer and chronic renal disease). From multiple animal and in vitro human studies, ghrelin also appears to have anti-inflammatory properties which would potentially benefit CF patients in whom a chronic inflammatory state promotes lung destruction, malnutrition and increases mortality. Ghrelin replacement may therefore improve nutrition and decrease the inflammatory burden in CF patients, leading to an improvement in life-expectancy. If ghrelin is identified as having an important pathophysiological role in CF it may lead to a future study of its efficacy as a therapeutic agent.
Design Methodology: The study has three sections:
- a cross sectional study of the levels of blood metabolic signals in participants with cystic fibrosis and healthy controls.
- a laboratory study of the effect of ghrelin on immune cells extracted from the blood of participants with cystic fibrosis and healthy controls
- a cross-over interventional study of repeated ghrelin administration in malnourished cystic fibrosis patients
Studietyp
Inskrivning (Förväntat)
Fas
- Inte tillämpbar
Kontakter och platser
Studieorter
-
-
Cambridgeshire
-
Cambridge, Cambridgeshire, Storbritannien, CB23 3RE
- Rekrytering
- Papworth Hospital NHS Foundation Trust
-
Kontakt:
- Andres R Floto, BM BSc, PhD
- Telefonnummer: 01480 830541
- E-post: andres.floto@papworth.nhs.uk
-
Kontakt:
- Jane D Elliott, MPhil
- Telefonnummer: 01480 364495
-
Huvudutredare:
- Andres Floto, MB BChir, PhD, FRCP
-
Underutredare:
- Katie J Wynne, MB BChir, PhD, FRCP
-
-
Deltagandekriterier
Urvalskriterier
Åldrar som är berättigade till studier
Tar emot friska volontärer
Kön som är behöriga för studier
Beskrivning
Inclusion Criteria:
- Cystic fibrosis
- BMI </=19 kg/m2
Exclusion Criteria:
- Needle phobia
- Pulmonary infection requiring intravenous antibiotics in the past 2 weeks-
Studieplan
Hur är studien utformad?
Designdetaljer
- Primärt syfte: Hälsovårdsforskning
- Tilldelning: Randomiserad
- Interventionsmodell: Crossover tilldelning
- Maskning: Trippel
Vapen och interventioner
Deltagargrupp / Arm |
Intervention / Behandling |
---|---|
Placebo-jämförare: saline injections
|
subcutaneous injection
|
Vad mäter studien?
Primära resultatmått
Resultatmått |
Tidsram |
---|---|
Appetite
Tidsram: 4 weeks
|
4 weeks
|
Sekundära resultatmått
Resultatmått |
Tidsram |
---|---|
vikt
Tidsram: 4 veckor
|
4 veckor
|
Samarbetspartners och utredare
Studieavstämningsdatum
Studera stora datum
Studiestart
Primärt slutförande (Förväntat)
Avslutad studie (Förväntat)
Studieregistreringsdatum
Först inskickad
Först inskickad som uppfyllde QC-kriterierna
Första postat (Uppskatta)
Uppdateringar av studier
Senaste uppdatering publicerad (Uppskatta)
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
Senast verifierad
Mer information
Termer relaterade till denna studie
Ytterligare relevanta MeSH-villkor
Andra studie-ID-nummer
- P01276
Denna information hämtades direkt från webbplatsen clinicaltrials.gov utan några ändringar. Om du har några önskemål om att ändra, ta bort eller uppdatera dina studieuppgifter, vänligen kontakta register@clinicaltrials.gov. Så snart en ändring har implementerats på clinicaltrials.gov, kommer denna att uppdateras automatiskt även på vår webbplats .
Kliniska prövningar på Cystisk fibros
-
Igdir UniversityOkan UniversityRekryteringDiet, hälsosam | Acne CysticKalkon
-
University of MichiganNational Cancer Institute (NCI); National Institutes of Health (NIH)AvslutadBröstcancer | Mass Cystic | Godartad massaFörenta staterna
-
National Institute of Allergy and Infectious Diseases...Avslutad
-
ProgenaBiomeRekryteringAcne vulgaris | Acne | Acne rosacea | Acne Inversa | Akne Keloidalis | Akne Keloid | Acne Conglobata | Acne Cystic | Acne Pomade | Acne Indurata | Acne Papular | Acne Tropica | Acne Urticata | Acne Fulminans | Akne follikulär | Acne Tropicalis | Acne Detergicans | Akne Jodid | Acne VarioliformisFörenta staterna
Kliniska prövningar på ghrelin
-
Baker Heart and Diabetes InstituteAvslutad
-
Jenny Tong, MD, MPHIndragen
-
University of PennsylvaniaAvslutad
-
David DalessioNational Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)Okänd
-
Lars LundAvslutadHjärtsvikt med reducerad ejektionsfraktion HFrEF
-
University of PennsylvaniaAvslutad
-
University of PennsylvaniaAvslutad
-
Vanderbilt University Medical CenterNational Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)Avslutad
-
Hvidovre University HospitalAvslutad
-
Northwestern UniversityAvslutadPerifer arteriell sjukdom | Perifer artärsjukdom | VADDERAFörenta staterna