- ICH GCP
- US Clinical Trials Registry
- Klinisk utprøving NCT04160910
5HTP-regulering av astma hos barn
The purpose of this study is to learn more about if taking a supplement called 5-hydroxytryptophan (5HTP) can improve breathing and anxiety symptoms related to asthma. To help learn more subjects will either be assigned to a group that is taking the supplement (5HTP) or a group that is taking a placebo. This will be decided randomly. Later in the study subjects will crossover to the other group.There are 5 study visits over the course of about 12 weeks.
Studieoversikt
Status
Intervensjon / Behandling
Detaljert beskrivelse
The objective of this study is to test the hypothesis that over-the-counter amino acid supplement 5HTP (isolated from the plant Griffonia Simplifolia) reduces human allergic lung responses and consequently improves lung function. The primary outcome is the change in FEV1. We anticipate the 5HTP at the proposed doses will improve lung function as in preclinical studies that used clinically relevant 5HTP. Secondary outcomes will be blood eosinophil counts and reduced symptoms for anxiety/depression, as seen in changes in the anxiety-depression scores from questionnaires (CES-DC & SCARED). The results from these studies have the transformative potential to influence approaches to improve lung function and asthma-associated anxiety/depression.
- Aim 1: Test that 5HTP improves lung function in children with allergic asthma
- Aim 2: Test that 5HTP reduces eosinophil numbers in the blood and nasal fluid of patients with asthma from Aim 1
- Aim 3: Test that 5HTP decreases lung inflammation, increases cortisol and prolactin without altering systemic plasma concentrations of 5HTP, serotonin, 5-hydroxyindoleacetic acid (5-HIAA), and dopamine
Studietype
Registrering (Antatt)
Fase
- Fase 2
Kontakter og plasseringer
Studiekontakt
- Navn: Kirsten Kloepfer, MD
- Telefonnummer: (317) 278-7860
- E-post: kloepfer@iu.edu
Studer Kontakt Backup
- Navn: Lisa Bendy, MBA
- Telefonnummer: (317) 278-7218
- E-post: lbendy@iu.edu
Studiesteder
-
-
Indiana
-
Indianapolis, Indiana, Forente stater, 46202
- Rekruttering
- Indiana University
-
Ta kontakt med:
- Lisa Bendy, MBA
- Telefonnummer: 317-278-7152
- E-post: lbendy@iu.edu
-
Ta kontakt med:
- Lisa Bendy, MBA
- Telefonnummer: 3172787152
- E-post: lbendy@iu.edu
-
-
Deltakelseskriterier
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
Tar imot friske frivillige
Kjønn som er kvalifisert for studier
Beskrivelse
Inclusion Criteria:
-
Age 8-18 Years of Age
-
Mild to Moderate Asthma based on ATS guidelines
-
Positive Allergy Test (positive skin or serum IgE)
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Weight ≥ 70 lbs (32 kg)
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CES-DC cut-off ≥ 15 (total score range is 0 to 60) or SCARED cut-off
- 25 (total score range is 0 to 142)
-
Ability to comply with study visits and study procedures
-
Informed Consent by participant and if applicable the parent or legal guardian
Exclusion Criteria:
- Currently taking a SSRI
- Taking a leukotriene inhibitor (montelukast, Zileuton)
- Severe Asthma Based on ATS Guidelines
- Taking a biologic medication (omalizumab, mepolizumab, benralizumab, dupilumab)
- Medical History of Adverse Reaction to 5HTP
- Physical findings that would compromise the safety of the study or the quality of the study data
Studieplan
Hvordan er studiet utformet?
Designdetaljer
- Primært formål: Behandling
- Tildeling: Randomisert
- Intervensjonsmodell: Crossover-oppdrag
- Masking: Trippel
Våpen og intervensjoner
Deltakergruppe / Arm |
Intervensjon / Behandling |
|---|---|
|
Aktiv komparator: 5-hydroxytryptophan
Dosage of 5-hydroxytryptophan will be determined by weight: If subject weighs less than 100lbs: 50mg twice a day If subject weights more than 100lbs: 100mg twice a day |
Double blinded placebo controlled. 28 day dosing period followed by 3 week washout period. Then crossover to other arm of study
Andre navn:
|
|
Placebo komparator: Placebo
Dosage of placebo will be determined by weight: If subject weighs less than 100lbs: 50mg twice a day If subject weights more than 100lbs: 100mg twice a day |
Double blinded placebo controlled. 28 day dosing period followed by 3 week washout period. Then crossover to other arm of study |
Hva måler studien?
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Pulmonary Function Testing will be performed to assess for a change in Forced Expiratory Volume at one second (FEV1)
Tidsramme: 77 days
|
Pulmonary function testing will be performed at Baseline, Day 28, and Day 49, and Day 77 |
77 days
|
Sekundære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Blood will be obtained to assess Eosinophil Count
Tidsramme: 77 days
|
Will be performed at Baseline, Day 28, and Day 49, and Day 77 |
77 days
|
|
Questionnaires will be utilized to look for a decrease in symptoms for Anxiety/Depression Reduced Symptoms for Anxiety/Depression
Tidsramme: 77 days
|
Changes in Anxiety/Depression will be determined via questionnaire that will be administered at Baseline, Day 28, and Day 49, and Day 77 . Will use the Center for Epidemiological Studies Depression Scale for Children (CES-DC) to measure depression and Screen for Child Anxiety Related Disorders (SCARED) |
77 days
|
Samarbeidspartnere og etterforskere
Sponsor
Etterforskere
- Hovedetterforsker: Kirsten Kloepfer, MD, Indiana University
Studierekorddatoer
Studer hoveddatoer
Studiestart (Faktiske)
Primær fullføring (Antatt)
Studiet fullført (Antatt)
Datoer for studieregistrering
Først innsendt
Først innsendt som oppfylte QC-kriteriene
Først lagt ut (Faktiske)
Oppdateringer av studieposter
Sist oppdatering lagt ut (Faktiske)
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Sist bekreftet
Mer informasjon
Begreper knyttet til denne studien
Ytterligere relevante MeSH-vilkår
- Neoplasmer
- Sykdommer i immunsystemet
- Neoplasmer etter histologisk type
- Lymfesykdommer
- Lymfoproliferative lidelser
- Immunproliferative lidelser
- Lymfom, Non-Hodgkin
- Lymfom
- Hemic og lymfatiske sykdommer
- Lymfom, follikulær
- Aminosyrer, peptider og proteiner
- Aminosyrer
- Aminosyrer, aromatiske
- Aminosyrer, syklisk
- Tryptofan
- 5-hydroksytryptophan
Andre studie-ID-numre
- Kloepfer_1902366300
Plan for individuelle deltakerdata (IPD)
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