- ICH GCP
- US Clinical Trials Registry
- Klinisk utprøving NCT07932366
Effect of Pre-heat Conditioning on Histaminergic Itch
Investigating the Neurophysiology of Itch
This project aims to create a reliable, long-lasting itch model by synergistically combining thermal pre-conditioning with the application of histamine in one or multiple injection sites
Studieoversikt
Status
Intervensjon / Behandling
Studietype
Registrering (Antatt)
Fase
- Ikke aktuelt
Kontakter og plasseringer
Studiekontakt
- Navn: Silvia Lo Vecchio
- Telefonnummer: 21397785
- E-post: slv@hst.aau.dk
Studiesteder
-
-
Aalborg
-
Gistrup, Aalborg, Danmark, 9260
- Center for Neuroplasticity and Pain Faculty of Medicine, Aalborg University Selma Lagerløfs Vej 249 9260 Gistrup, Denmark
-
Ta kontakt med:
- Silvia Lo Vecchio
- Telefonnummer: 21397785
- E-post: slv@hst.aau.dk
-
-
Deltakelseskriterier
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
Tar imot friske frivillige
Kjønn som er kvalifisert for studier
Beskrivelse
Inclusion Criteria:
- Healthy men and women
- 18-60 years
- Speak and understand English
Exclusion Criteria:
- Pregnancy or lactation
- Drug addiction defined as any use of cannabis, opioids, or other addictive drugs
- Previous or current history of neurological (e.g., neuropathy), immunological (e.g., asthma, immune deficiencies, arthritis), musculoskeletal (e.g., muscular pain in the upper extremities), cardiac disorder (e.g., stroke), or psychiatric diagnoses (e.g., depression, bipolar disorders, acute and chronic psychosis).
- ) that may affect the results
- Current use of medications that may affect the trial, such as antihistamines, antipsychotics, painkillers, and systemic or topical steroids
- Skin diseases (e.g., atopic dermatitis, pruritus nodularis, eczema, psoriasis)
- Moles, scars, or tattoos in the area to be treated or tested (forearm/hand).
- Consumption of alcohol or painkillers 24 hours before the study days and between these
- Acute or chronic pain
- Unable to answer the "Transcranial Magnetic Stimulation Adult Safety Screen" (subprojects 2-4)
- Contraindications to transcranial magnetic stimulation (TMS) application (history of epilepsy, metal implants in head or jaw, etc.) (subprojects 2-4)
- Presence of implanted hearing aids or metal implants on the face, including permanent makeup or tattoos (subprojects 2-4)
- Contraindications to capsaicin, including intolerance to chili or burns or wounds at the application sites (subprojects 2, 3, and 4)
- Participation in other trials within one week of study entry (four weeks in the case of pharmaceutical trials) The subject is assessed as unable to engage in the necessary cooperation required by the study
Studieplan
Hvordan er studiet utformet?
Designdetaljer
- Primært formål: Grunnvitenskap
- Tildeling: N/A
- Intervensjonsmodell: Enkeltgruppeoppdrag
- Masking: Ingen (Open Label)
Våpen og intervensjoner
Deltakergruppe / Arm |
Intervensjon / Behandling |
|---|---|
|
Eksperimentell: Heat pre-conditioning
38 °C x 5 min |
38 °C x 5 min To deliver histamine, standard allergy skin prick test (SPT) lancets are applied To deliver histamine, standard allergy skin prick test (SPT) lancets are applied |
Hva måler studien?
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Superficial blood perfusion
Tidsramme: Before pruritogen application
|
Before pruritogen application
|
|
|
Superficial blood perfusion
Tidsramme: 1 minute after pruritogen removal
|
1 minute after pruritogen removal
|
|
|
Measuring Itch by computerized Visual Analog Scale Scoring
Tidsramme: During Histamine application
|
We will ask the subjects to rate the sensation of itch on a 100 |
During Histamine application
|
Sekundære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Alloknesis
Tidsramme: Before pruritogen application
|
is measured by using a brush |
Before pruritogen application
|
|
Alloknesis
Tidsramme: 2 minutes after pruritogen removal
|
is measured by using a brush |
2 minutes after pruritogen removal
|
|
Mechanically evoked itch (MEI)
Tidsramme: Before pruritogen application
|
MEI is measured by using mildly pruritic, non-painful von Frey nylon filaments of a predetermined intensity (generally 5-30 miliNewton of force). |
Before pruritogen application
|
|
Mechanically evoked itch (MEI)
Tidsramme: 5 minute after pruritogen removal
|
MEI is measured by using mildly pruritic, non-painful von Frey nylon filaments of a predetermined intensity (generally 5-30 miliNewton of force). |
5 minute after pruritogen removal
|
Samarbeidspartnere og etterforskere
Sponsor
Studierekorddatoer
Studer hoveddatoer
Studiestart (Antatt)
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
Andre studie-ID-numre
- N-20250026 Project 1b
Plan for individuelle deltakerdata (IPD)
Planlegger du å dele individuelle deltakerdata (IPD)?
Legemiddel- og utstyrsinformasjon, studiedokumenter
Studerer et amerikansk FDA-regulert medikamentprodukt
Studerer et amerikansk FDA-regulert enhetsprodukt
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