- ICH GCP
- Registro degli studi clinici negli Stati Uniti
- Sperimentazione clinica NCT00524485
Photodynamic Therapy Using Topical Aminolevulinic Acid in Treating Patients With Actinic Keratosis
A Pilot Study to Investigate the Use of Topical Levulan® With Vbeam® Laser for the Treatment of Actinic Keratoses
RATIONALE: Photodynamic therapy uses a drug that becomes active when it is exposed to a certain kind of light. When the drug is active, abnormal cells are killed. Photodynamic therapy using topical aminolevulinic acid may be effective against actinic keratosis.
PURPOSE: This randomized clinical trial is studying how well different photodynamic therapy regimens using topical aminolevulinic acid work in treating patients with actinic keratosis.
Panoramica dello studio
Stato
Condizioni
Intervento / Trattamento
Descrizione dettagliata
OBJECTIVES:
Primary
- To determine, using fluorescence measurements, the protoporphyrin IX (PpIX) accumulation in thin actinic keratoses (AK) and actinically damaged skin on the face, scalp, and upper torso (stratum 1) and the PpIX accumulation in thick AK and actinically damaged skin on the arms and legs (stratum 2) as a function of skin preparation, aminolevulinic acid (ALA) application time, and body site.
- To determine the extent that the PpIX is photobleached by the treatment light.
Secondary
- To assess the effects of different treatment conditions on acute reactions of AK and sun damaged skin to ALA-photodynamic therapy (PDT) occurring 24-48 hours after PDT.
- To assess the effects of different treatment conditions on the efficacy of ALA-PDT.
- To examine the histological response to ALA-PDT.
- To determine, using fluorescence measurements, the PpIX accumulation in incidental thick AK that may occur in stratum 1, and the PpIX accumulation in incidental thin AK that may occur in stratum 2 as a function of skin preparation, ALA application time and body site.
- To determine the extent that the PpIX in these incidental lesions is photobleached by treatment light.
OUTLINE: The randomization is a two-step restricted block process for application time and skin preparation, followed by randomization for light dose (1 vs 2 pulses) within the anatomic site. Within each stratum (stratum 1 or 2), lesions in each separate anatomic area (face and neck, scalp, upper torso; arms, legs) are randomized to receive 1 of 3 pretreatment skin preparation before receiving topical aminolevulinic acid (ALA): pretreatment with acetone, gentle abrading, or no pretreatment. Patients are randomized to receive ALA at different times before the photodynamic therapy (PDT).
- Arm I: Patients receive topical ALA 2 hours before PDT.
- Arm II: Patients receive topical ALA 4 hours before PDT.
- Arm III: Patients receive topical ALA 24 hours before PDT. Each anatomic area is divided into subunits (e.g., right and left arm, right and left side of the face). The subunits are randomized to receive 1 or 2 pulses of the laser treatment.
- Arm IV: 1 Vbeam laser pulse (photodynamic therapy) is applied to the subunit.
- Arm V: 2 Vbeam laser pulses (photodynamic therapy) are applied to the subunit. Patients may receive up to 3 treatments (including pretreatment, ALA, and PDT) at least 1 month apart. Patients with progressive lesions or lesions that have not responded after 3 treatments may receive diagnostic biopsy to check for invasive squamous cell carcinoma and referred to treatment off study.
Patients undergo biopsies at baseline, before and after ALA application prior to light treatment, and up to 24 hours after light treatment to analyze cytokines and genes specific to actinic keratoses.
Tipo di studio
Iscrizione (Effettivo)
Fase
- Non applicabile
Contatti e Sedi
Luoghi di studio
-
-
New York
-
Buffalo, New York, Stati Uniti, 14263-0001
- Roswell Park Cancer Institute
-
-
Criteri di partecipazione
Criteri di ammissibilità
Età idonea allo studio
Accetta volontari sani
Sessi ammissibili allo studio
Descrizione
DISEASE CHARACTERISTICS:
Actinic keratosis lesion located in any of the following body sites:
Stratum 1*: face and neck, scalp, or upper torso
- At least 1 clinically evident thin actinic keratosis on each side of the midline of any of the above areas
Stratum 2*: arms or legs
- At least 1 clinically evident thick actinic keratosis on each arm or leg NOTE: *One patient may be in one or both strata depending on the location of the lesion(s)
- Lesions to be treated on this protocol must not have been previously treated by other modalities for at least 2 months prior to study entry
PATIENT CHARACTERISTICS:
- No porphyria or known hypersensitivity to porphyrins
- No known photosensitivity disease
- No known sensitivity to any components of aminolevulinic acid topical solution
- Not pregnant or nursing
PRIOR CONCURRENT THERAPY:
- Other concurrent topical therapies at lesion sites other than those used in this protocol are allowed
- No other concurrent photosensitizer drugs
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
- Scopo principale: Trattamento
- Assegnazione: Randomizzato
- Modello interventistico: Assegnazione di gruppo singolo
- Mascheramento: Nessuno (etichetta aperta)
Armi e interventi
Gruppo di partecipanti / Arm |
Intervento / Trattamento |
|---|---|
|
Sperimentale: Arm 1 - ALA
Patients receive topical ALA topical (aminolevulinic acid) 2 hours before PDT.
|
|
|
Sperimentale: Arm 2
Patients receive topical ALA topical (aminolevulinic acid) 4 hours before PDT
|
|
|
Sperimentale: Arm 3
Patients receive topical ALA (aminolevulinic acid) 24 hours before PDT.
Each anatomic area is divided into subunits (e.g., right and left arm, right and left side of the face).
The subunits are randomized to receive 1 or 2 pulses of the laser treatment
|
|
|
Sperimentale: Arm 4
Vbeam laser pulse (photodynamic therapy) is applied to the subunit
|
|
|
Sperimentale: Arm 5
Vbeam laser pulses (photodynamic therapy) are applied to the subunit.
Patients may receive up to 3 treatments (including pretreatment, ALA, and PDT) at least 1 month apart
|
Cosa sta misurando lo studio?
Misure di risultato primarie
Misura del risultato |
|---|
|
Protoporphyrin IX (PpIX) Accumulation as a Function of Skin Preparation, Aminolevulinic Acid Application Time, and Body Site
|
|
Extent That the PpIX is Photobleached by the Treatment Light
|
Misure di risultato secondarie
Misura del risultato |
|---|
|
Effects of Different Treatment Conditions on Acute Reactions of Actinic Keratoses (AK) and Sun Damaged Skin Occurring 24-48 Hours After Photodynamic Therapy
|
|
Effects of Different Treatment Conditions on Efficacy
|
|
Histological Response
|
|
PpIX Accumulation in Incidental AK as a Function of Skin Preparation, Aminolevulinic Acid Application Time, and Body Site
|
|
Extent That the PpIX is Photobleached by the Treatment Light in Incidental Lesions
|
Collaboratori e investigatori
Sponsor
Collaboratori
Investigatori
- Investigatore principale: Nathalie Zeitouni, MD,, Roswell Park Cancer Institute
Studiare le date dei record
Studia le date principali
Inizio studio
Completamento primario (Effettivo)
Completamento dello studio (Effettivo)
Date di iscrizione allo studio
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Stima)
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Effettivo)
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Parole chiave
Termini MeSH pertinenti aggiuntivi
Altri numeri di identificazione dello studio
- I 28204
- RPCI-I-28204
Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .
Prove cliniche su terapia laser
-
Liaquat University of Medical & Health SciencesUniversità degli Studi dell'InsubriaCompletato
-
M.D. Anderson Cancer CenterNational Cancer Institute (NCI); National Institutes of Health (NIH)Attivo, non reclutante
-
Karadeniz Technical UniversityCompletatoEmodialisi | Solitudine | Felicità | Adattamento | Terapia assistita da animali | SintomoTacchino
-
University of AmsterdamGgz Oost Brabant; Academic Center for Trauma and Personality; Arkin Mental Health...Iscrizione su invitoDisturbo borderline di personalitàOlanda
-
University of Applied Sciences and Arts of Southern...CompletatoAllenamento di resistenza | Studio sui partecipanti saniSvizzera
-
Zealand University HospitalUniversity of Copenhagen; Technical University of Denmark; OptoCeuticsCompletatoMalattia di AlzheimerDanimarca
-
khaled Abdelsattar Gad IbrahimCompletato
-
Karadeniz Technical UniversityIscrizione su invito
-
Rhode Island HospitalSynovation Medical GroupReclutamento
-
Columbia UniversityTerminato