- ICH GCP
- Registro de ensayos clínicos de EE. UU.
- Ensayo clínico NCT00001762
Magnetic Resonance Imaging of the Face and Bones
Magnetic Resonance Imaging to Study Avascular Necrosis in HIV-Infected Subjects
This study will examine risk factors for facial wasting and avascular necrosis (AVN, a type of damage to the hip and other bones) in HIV-infected patients. The prevalence and natural history of AVN are also being evaluated. This study will use magnetic resonance imaging (MRI) to identify and monitor these conditions in patients with and without diagnosed AVN and to identify risk factors.
HIV-infected patients 18 years of age and older may be eligible for this study. HIV-infected children 4 years and older who can tolerate magnetic resonance imaging without sedation may also participate. Candidates may be screened for participation with a medical history, physical examination, blood and urine tests and possibly an electrocardiogram. Volunteers will provide a medical history and may have a brief physical examination. The study is currently closed to normal volunteers.
HIV-infected patients will have a MRI scan of the hip bone, and possibly other bones. Before the scan, they will provide a medical history by interview or questionnaire and have a physical examination. Those with diagnosed AVN will also have blood drawn to help identify potential risk factors for AVN. For the MRI, the patient lies flat on a stretcher that is moved into a cylindrical machine with a strong magnetic field. Earplugs are worn to muffle thumping sounds produced by radio waves that form the images. Patients can speak with a staff member via an intercom system at all times during the procedure. Repeat MRI studies will be requested at approximately 3- to 12-month intervals for up to 5 years, to see if changes occur with time. If medically indicated, additional diagnostic studies may be done to obtain information needed for appropriate medical care. Blood will be drawn periodically to examine immune parameters and viral blood levels. Patients with AVN may have periodic consultations with the rehabilitation medicine service and orthopedic surgeons.
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Descripción general del estudio
Estado
Condiciones
Descripción detallada
Tipo de estudio
Inscripción (Actual)
Contactos y Ubicaciones
Ubicaciones de estudio
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Maryland
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Bethesda, Maryland, Estados Unidos, 20892
- National Institutes of Health Clinical Center, 9000 Rockville Pike
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Criterios de participación
Criterio de elegibilidad
Edades elegibles para estudiar
Acepta Voluntarios Saludables
Géneros elegibles para el estudio
Descripción
- INCLUSION CRITERIA:
Adult patients (18 and older) who are thought likely to tolerate the MRI without sedation.
Willing and able to provide written informed consent.
No contraindication to MRI as below:
For hip MRI of patients with known AVN: known HIV infection, based on patient history or NIH or referring physician records, and AVN previously diagnosed by X-ray or MRI scans.
EXCLUSION CRITERIA:
Prior intolerance of head MRI (noise, claustrophobia, etc).
Pregnancy (fertile women must have a negative pregnancy test to within 2 weeks of the MRI and must be using a reliable method of birth control).
Presence of specific contraindication for MRI:
- current or prior employment as a welder or metalworker
- presence of cardiac or neural pacemaker, aneurysm clip, cochlear implant, metallic implant such as artificial cardiac valve, shrapnel, or permanent, non-removable body jewelry.
- Surgery within the last 6 months with the use of metal clips.
Plan de estudios
¿Cómo está diseñado el estudio?
Colaboradores e Investigadores
Investigadores
- Investigador principal: Joseph A Kovacs, M.D., National Institutes of Health Clinical Center (CC)
Publicaciones y enlaces útiles
Publicaciones Generales
- Bermudez LE, Martinelli J, Petrofsky M, Kolonoski P, Young LS. Recombinant granulocyte-macrophage colony-stimulating factor enhances the effects of antibiotics against Mycobacterium avium complex infection in the beige mouse model. J Infect Dis. 1994 Mar;169(3):575-80. doi: 10.1093/infdis/169.3.575.
- Chaisson RE, Benson CA, Dube MP, Heifets LB, Korvick JA, Elkin S, Smith T, Craft JC, Sattler FR. Clarithromycin therapy for bacteremic Mycobacterium avium complex disease. A randomized, double-blind, dose-ranging study in patients with AIDS. AIDS Clinical Trials Group Protocol 157 Study Team. Ann Intern Med. 1994 Dec 15;121(12):905-11. doi: 10.7326/0003-4819-121-12-199412150-00001.
- Chaisson RE, Keiser P, Pierce M, Fessel WJ, Ruskin J, Lahart C, Benson CA, Meek K, Siepman N, Craft JC. Clarithromycin and ethambutol with or without clofazimine for the treatment of bacteremic Mycobacterium avium complex disease in patients with HIV infection. AIDS. 1997 Mar;11(3):311-7. doi: 10.1097/00002030-199703110-00008.
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio
Finalización del estudio
Fechas de registro del estudio
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Estimar)
Actualizaciones de registros de estudio
Última actualización publicada (Actual)
Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Más información
Términos relacionados con este estudio
Palabras clave
Términos MeSH relevantes adicionales
- Infecciones por virus de ARN
- Enfermedades virales
- Infecciones
- Infecciones transmitidas por la sangre
- Enfermedades contagiosas
- Enfermedades De Transmisión Sexual Virales
- Enfermedades de transmisión sexual
- Infecciones por lentivirus
- Infecciones por retroviridae
- Síndromes de deficiencia inmunológica
- Enfermedades del sistema inmunológico
- Infecciones por VIH
Otros números de identificación del estudio
- 980070
- 98-I-0070
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Ensayos clínicos sobre Infección por VIH
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Icahn School of Medicine at Mount SinaiIRRASReclutamientoHemorragia Intraventricular (HIV)Estados Unidos
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Yale UniversityTerminadoPrecocidad | Recién nacidos de muy bajo peso al nacer | Hemorragia Intraventricular (HIV) | Sangrado en el cerebroEstados Unidos
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China Medical University HospitalDesconocidoDisplasia broncopulmonar | Bebés extremadamente prematuros | TLP grave que las terapias convencionales han fallado | Sin anomalías congénitas graves | no Hiv Severa Ni FPV QuísticaTaiwán