Phase II Trial of Arginine Butyrate for Treatment of Refractory Leg Ulcers in Sickle Cell Disease or Beta Thalassemia
Standard local care dressing
+ Arginine Butyrate
+ Standard local care dressing
Anemia+10
+ Anemia Hemolítica
+ Anemia congénita hemolítica
Estudio de Tratamiento
Resumen
Fecha de inicio: 1 de septiembre de 1997
Fecha en la que se inscribió al primer participante.PROTOCOL OUTLINE: This is a randomized, multicenter study. Patients are randomized to one of two treatment arms. Arm I: Patients receive arginine butyrate IV over 6-9 hours at night 5 days a week for 12 weeks, plus concurrent standard local therapy consisting of cleaning, saline irrigation, and dressing changes as prescribed by each patient's physician. Patients who experience progressive healing receive arginine butyrate 3-4 times a week. Arginine butyrate treatment may be discontinued and reinstated following a single 2 week medical complication. Arm II: Patients receive standard local therapy alone for 12 weeks. Patients randomized to arm II may cross over to receive arginine butyrate if no or less than 25% healing is observed after 12 weeks. Patients whose ulcers have closed by at least 15% per cycle may receive 2 additional 8-week cycles of arginine butyrate therapy and are followed for 2 months after healing is completed.
Protocolo
Esta sección proporciona detalles del plan del estudio, incluyendo cómo está diseñado y qué se está evaluando.Se reclutarán 23 pacientes
Número total de participantes que el ensayo clínico espera reclutar.Estudio de Tratamiento
Elegibilidad
Los investigadores buscan pacientes que cumplan ciertos criterios, conocidos como criterios de elegibilidad: estado general de salud o tratamientos previos.Cualquier sexo
Sexo biológico de los participantes elegibles para inscribirse.De 16 a 60 años
Rango de edades de los participantes que pueden unirse al estudio.Voluntarios sanos no permitidos
Indica si personas sanas, sin la condición que se estudia, pueden participar.Condiciones
Patología
Criterios
PROTOCOL CRITERIA INCLUSION: --Disease Characteristics-- Significant sickle cell syndrome including Hemoglobin SS (HbSS), Hemoglobin S-beta thalassemia, and hemoglobin variants. Lower extremity or ankle ulcer (or ulcers) present for at least 6 months without healing --Patient Characteristics-- Age: 16-60 yrs Performance status: Not specified Hematopoietic: Not specified Hepatic: No hepatic compromise Transaminases no greater than 250 IU Renal: No renal compromise Creatinine no greater than 1.2 mg/mL (adults) Creatinine no greater than 0.9 mg/mL (teenagers) Other: Not pregnant Fertile patients must use effective contraception No poorly controlled seizure disorders No other secondary conditions that might inhibit immune function Prior/Concurrent Therapy Other: Must be treated with antibiotics prior to entry for complicating cellulitis or secondary infections EXCLUSION : --Prior/Concurrent Therapy-- Biologic therapy: chronic transfusion therapy Chemotherapy: prior or concurrent cancer chemotherapy concurrent butyrate derivatives Endocrine therapy: concurrent corticosteroid therapy Radiotherapy: Not specified Surgery: Not specified --Patient Characteristics-- Hepatic: hepatic compromise Transaminases greater than 250 IU Renal: renal compromise Creatinine greater than 1.2 mg/mL (adults) Creatinine greater than 0.9 mg/mL (teenagers) Other: pregnant; Fertile patients with no effective contraception Poorly controlled seizure disorders other secondary conditions that might inhibit immune function
Plan de Estudio
Conoce todos los tratamientos administrados en este estudio, su descripción detallada y en qué consisten.3 grupos de intervención están designados en este estudio
0% de probabilidad de ser asignado al grupo placebo
Grupos de Tratamiento
Grupo I
Grupo II
ExperimentalGrupo III
Objetivos del Estudio
Objetivos Primarios
Objetivos Secundarios
Centros del Estudio
Estos son los hospitales, clínicas o centros de investigación donde se lleva a cabo el estudio. Puedes encontrar la ubicación más cercana a ti y su estado de reclutamiento.Este estudio tiene 4 ubicaciones
University of Illinois College of Medicine
Chicago, United StatesAbrir University of Illinois College of Medicine en Google MapsBoston University School of Medicine
Boston, United StatesMount Sinai School of Medicine
New York, United StatesUniversity of Tennessee, Memphis Cancer Center
Memphis, United States