- ICH GCP
- Amerikanska kliniska prövningsregistret
- Klinisk prövning NCT07567131
Observational Study of Adults and Adolescents With Erythropoietic Protoporphyria (EPP) and X-linked Porphyria (XLP) (stEPP)
Prospective Clinical Assessment Study in Adolescents and Adults With Erythropoietic Protoporphyria (EPP) and X-Linked Porphyria (XLP) (STEPP)
The purpose of this study is to collect information about the effects of EPP/XLP in adults and adolescents. This is an observational study in which participants will not receive any treatment. Study details include:
- The study duration will be up to 6 months for each participant.
- After Screening, participants will have a Baseline (Day 1) visit and return for visits every 4 weeks through 24 weeks.
- Assessments to evaluate EPP/XLP will include clinical laboratory tests, physical exams, vital signs measurement, blood draws for PPIX concentration, reporting of EPP/XLP-related symptoms (including completion of a daily diary), light dosimetry.
Studieöversikt
Status
Studietyp
Inskrivning (Beräknad)
Kontakter och platser
Studiekontakt
- Namn: GondolaBio Inquiries
- Telefonnummer: 2178 650-249-2108
- E-post: patientadvocacy@gondolabio.com
Studieorter
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Leuven, Belgien
- Har inte rekryterat ännu
- UZ Leuven
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Kontakt:
- Sarah Brike
- Telefonnummer: +32 16 34 62 32
- E-post: sarah.brike@uzleuven.be
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Bordeaux, Frankrike
- Har inte rekryterat ännu
- Centre Hospitalier Universitaire de Bordeaux - Hopital Saint - Andre
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Kontakt:
- Jean Delaune
- Telefonnummer: +33 0557822433
- E-post: Jean.delaune@chu-bordeaux.fr
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Paris, Frankrike
- Har inte rekryterat ännu
- AP-HP Hopital Bichat - Claude Bernard
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Kontakt:
- Jonathan Lehacaut
- Telefonnummer: 01.40.25.71.48
- E-post: jonathan.lehacaut@aphp.fr
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Massachusetts
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Boston, Massachusetts, Förenta staterna, 02114
- Rekrytering
- Massachusetts General Hospital
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Kontakt:
- Narmene Bensaber
- Telefonnummer: 206-681-0218
- E-post: nbensaber@mgh.harvard.edu
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New York
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New York, New York, Förenta staterna, 10029
- Rekrytering
- Mount Sinai School of Medicine
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Kontakt:
- Silvia Gunderson
- Telefonnummer: 646-385-4611
- E-post: silvia.gunderson@mssm.edu
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North Carolina
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Wake Forest, North Carolina, Förenta staterna, 27587
- Rekrytering
- Wake Forest University Baptist Health - Dept of Gastroenterology
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Kontakt:
- Denise Faust
- Telefonnummer: 336.713.1442
- E-post: denise.faust@advocatehealth.org
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Pennsylvania
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Philadelphia, Pennsylvania, Förenta staterna, 19121
- Har inte rekryterat ännu
- Temple University
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Kontakt:
- Penny Rothberg
- Telefonnummer: 215-214-1515
- E-post: penny.rothberg@temple.edu
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Texas
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Houston, Texas, Förenta staterna, 77030
- Rekrytering
- University of Texas Health - Ertan Digestive Disease Center
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Kontakt:
- Iram Abbasi
- Telefonnummer: 713-500-8908
- E-post: Iram.S.Abbasi@uth.tmc.edu
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Milan, Italien
- Har inte rekryterat ännu
- Fondazione Irccs Ca' Granda Ospedale Maggiore Policlinico Di Milano
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Kontakt:
- Elena Di Pierro
- Telefonnummer: +02 55033297
- E-post: elena.dipierro@policlinico.mi.it
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Modena, Italien
- Har inte rekryterat ännu
- Azienda Ospedaliero-Universitaria di Modena
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Kontakt:
- Chiara Boarini
- Telefonnummer: +39 (0) 594222722
- E-post: cboarini@unimore.it
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Edmonton, Kanada
- Har inte rekryterat ännu
- University of Alberta Hospital
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Kontakt:
- Samridhi Dhand
- Telefonnummer: 873-688-8200
- E-post: samridhi.dhand@primesiteresearch.com
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Bergen, Norge
- Har inte rekryterat ännu
- Haukeland University Hospital
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Kontakt:
- Janice Andersen
- Telefonnummer: +47 55973170
- E-post: jacd@helse-bergen.no
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Madrid, Spanien
- Rekrytering
- Hospital Universitario 12 de Octubre
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Kontakt:
- Patricia Ortiz
- Telefonnummer: +34630742050
- E-post: patricia.ortiz@ebers.es
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Valencia, Spanien
- Har inte rekryterat ännu
- Consorcio Hospital General Universitario de Valencia
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Kontakt:
- Alexanda Boix Navarro
- Telefonnummer: +34 963131800
- E-post: alexa_boix@hotmail.com
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Cardiff, Storbritannien
- Rekrytering
- University Hospital of Wales
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Kontakt:
- Mim Evans
- Telefonnummer: +44 02921 847061
- E-post: mim.evans@wales.nhs.uk
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Dundee, Storbritannien
- Rekrytering
- Ninewells Hospital
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Kontakt:
- Caroline Tee
- Telefonnummer: +44 (0)1382 660111
- E-post: tascfeasibility.tayside@nhs.scot
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London, Storbritannien
- Rekrytering
- Guy's Hospital
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Kontakt:
- Matthew Osmond
- Telefonnummer: +44 077 1769 7435
- E-post: matthew.osmond2@nhs.net
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Manchester, Storbritannien
- Rekrytering
- Salford Royal Hospital
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Kontakt:
- Jacqueline Howe
- Telefonnummer: +44 (0)161 206 8015
- E-post: jacqueline.howe@manchester.ac.uk
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Ankara, Turkiet (Türkiye)
- Har inte rekryterat ännu
- Gazi University Faculty of Medicine
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Kontakt:
- Fatih Ezgu
- Telefonnummer: +90 312 202 6001
- E-post: fatih.ezgu@gmail.com
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Deltagandekriterier
Urvalskriterier
Åldrar som är berättigade till studier
- Barn
- Vuxen
- Äldre vuxen
Tar emot friska volontärer
Testmetod
Studera befolkning
Beskrivning
Inclusion Criteria:
- Aged 12 years and older.
Confirmed diagnosis of EPP or XLP as follows:
- Genetic confirmation of EPP (FECH mutation with reduced ferrochelatase activity) OR
- Genetic confirmation of XLP (ALAS2 gain-of-function mutation) OR
- Elevated free PPIX levels in RBCs consistent with EPP/XLP, supported by clinical and/or family history.
- Currently has symptoms of EPP/XLP.
- History of consistent, non-painful prodrome within approximately 45 minutes of sunlight exposure and prior to phototoxic attacks, as self-reported by the participant.
- Willing and able to wear a light dosimetry device during the study.
- Willing and able to complete a daily diary of EPP/XLP symptoms.
- Willing and able to keep skin sites chosen for provocative sunlight exposure testing covered by opaque material when outside or exposed to potentially triggering light beginning 2 days prior to testing.
- Willing and able to provide informed consent and/or assent for the study.
- Study participants and LAR (as appropriate) are willing and able to comply with study visits and study procedures.
Exclusion Criteria:
- Diagnosis of another porphyria or another photodermatosis that may confound the characterization of EPP/XLP.
- Has a clinically significant disease or condition that, at the discretion of the Investigator or Sponsor, would interfere with the evaluation of EPP/XLP or study participation, or would make study participation not in the best interest of the participant.
- Is taking, or has taken within 60 days of Day 1, any medication, vitamin, or supplement that alters sensitivity to light exposure (eg, afamelanotide, melanotan, beta carotene, dersimelagon, or bitopertin).
- Concurrent or anticipated participation in an interventional clinical trial during the study period.
Studieplan
Hur är studien utformad?
Designdetaljer
Vad mäter studien?
Primära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
|
Plasma Protoporphyrin IX (PPIX) Levels Over Time
Tidsram: Screening; Baseline; Weeks 4, 8, 12, 16, 20, 24
|
Plasma protoporphyrin IX (PPIX) concentrations measured at specified study visits.
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Screening; Baseline; Weeks 4, 8, 12, 16, 20, 24
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Clinical History of Phototoxic Symptoms and Prodrome Timing
Tidsram: Screening, Baseline, Weeks 4, 8, 12, 16, 20, 24
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Medical history of EPP/XLP symptoms, including time to onset of prodromal sensations and occurrence of phototoxic reactions.
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Screening, Baseline, Weeks 4, 8, 12, 16, 20, 24
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Skin Damage Manifestations
Tidsram: Screening, Baseline, Weeks 4, 8, 12, 16, 20, 24
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Skin damage manifestations associated with EPP/XLP, including swelling, erythema, and chronic skin changes.
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Screening, Baseline, Weeks 4, 8, 12, 16, 20, 24
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Light Exposure and Phototoxic Reaction Data From Daily Diary
Tidsram: Screening, Baseline, Weeks 4, 8, 12, 16, 20, 24
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Daily recorded light exposure (including time spent outdoors), light dosimetry measurements, and occurrence of phototoxic reactions as captured in participant diaries.
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Screening, Baseline, Weeks 4, 8, 12, 16, 20, 24
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Sunlight Exposure Required to Induce Prodromal Symptoms
Tidsram: Baseline and Weeks 4, 8, 12, 16, 20
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Amount of sunlight exposure associated with onset of prodromal symptoms, along with corresponding plasma protoporphyrin IX (PPIX) levels.
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Baseline and Weeks 4, 8, 12, 16, 20
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Sekundära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
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Liver Function Test Results
Tidsram: Baseline and Weeks 4, 8, 12, 16, 20, 24
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Blood levels of liver function parameters (e.g., alanine aminotransferase [ALT], aspartate aminotransferase [AST], bilirubin) and corresponding plasma protoporphyrin IX (PPIX) levels.
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Baseline and Weeks 4, 8, 12, 16, 20, 24
|
Samarbetspartners och utredare
Sponsor
Studieavstämningsdatum
Studera stora datum
Studiestart (Beräknad)
Primärt slutförande (Beräknad)
Avslutad studie (Beräknad)
Studieregistreringsdatum
Först inskickad
Först inskickad som uppfyllde QC-kriterierna
Första postat (Faktisk)
Uppdateringar av studier
Senaste uppdatering publicerad (Faktisk)
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
Senast verifierad
Mer information
Termer relaterade till denna studie
Ytterligare relevanta MeSH-villkor
- Genetiska sjukdomar, medfödda
- Metaboliska sjukdomar
- Matsmältningssystemets sjukdomar
- Leversjukdomar
- Hudsjukdomar
- Hudsjukdomar, genetiska
- Porfyri, lever
- Porfyri
- Medfödda, ärftliga och neonatala sjukdomar och abnormiteter
- Närings- och metabola sjukdomar
- Hud- och bindvävssjukdomar
- Protoporfyri, erytropoetisk
Andra studie-ID-nummer
- PORT-77-001
Plan för individuella deltagardata (IPD)
Planerar du att dela individuella deltagardata (IPD)?
IPD-planbeskrivning
What may be shared:
De-identified individual participant data (no direct identifiers)
Who can access it:
Qualified researchers with a scientifically sound research proposal
Conditions for access:
Submission and approval of a research proposal Execution of a data sharing agreement (DSA) Compliance with privacy regulations (e.g., GDPR, HIPAA as applicable)
How it will be shared:
Through a secure data access process managed by the sponsor or designated data-sharing platform
Timing:
Typically after study completion and/or publication of primary results
Purpose:
To support further research on EPP and XLP while protecting participant confidentiality
Läkemedels- och apparatinformation, studiedokument
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