- ICH GCP
- Registro de ensayos clínicos de EE. UU.
- Ensayo clínico NCT07821827
Combined Phacoemulsification-Goniotomy in Primary Open-Angle and Primary Angle-Closure Glaucoma
Combined Phacoemulsification-Goniotomy in Primary Open-Angle and Primary Angle-Closure Glaucoma: A Comparative Study
This study evaluates whether combining cataract surgery (phacoemulsification) with incisional goniotomy effectively lowers intraocular pressure (IOP) and reduces the need for glaucoma medications in patients with coexisting cataract and glaucoma.
Conventional filtering surgeries, such as trabeculectomy, effectively reduce eye pressure but are often associated with bleb-related complications, hypotony, and intensive postoperative management. Goniotomy is an angle-based, conjunctival-sparing procedure that enhances natural aqueous outflow by incising the trabecular meshwork. When performed alongside phacoemulsification, cataract removal deepens the anterior chamber while goniotomy addresses outflow resistance without disrupting conjunctival tissue.
The main goal of this study is to compare the efficacy and safety profile of combined phacoemulsification and goniotomy between two distinct glaucoma phenotypes: primary open-angle glaucoma (POAG) and primary angle-closure glaucoma (PACG).
Participants will:
- Undergo standard clear corneal phacoemulsification with intraocular lens (IOL) implantation combined with nasal incisional goniotomy under direct gonioscopic visualization.
- Complete postoperative follow-up examinations at Day 1, Week 1, and Months 1, 3, 6, 9, and 12.
- Be monitored for changes in intraocular pressure, total number of glaucoma medications required, visual acuity, and postoperative complications for a minimum duration of 6 months.
Descripción general del estudio
Estado
Intervención / Tratamiento
Tipo de estudio
Inscripción (Estimado)
Fase
- No aplica
Criterios de participación
Criterio de elegibilidad
Edades elegibles para estudiar
- Adulto
- Adulto Mayor
Acepta Voluntarios Saludables
Descripción
Inclusion Criteria:
- Age 40 years and older (no upper limit).
- Diagnosis of uncontrolled or progressive primary open-angle glaucoma (POAG) or primary angle-closure glaucoma (PACG).
- Presence of visually significant cataract requiring phacoemulsification.
- Willingness and ability to complete the postoperative follow-up schedule of at least 6 months.
Exclusion Criteria:
- Secondary glaucoma.
- Prior incisional glaucoma surgery or selective laser trabeculoplasty (SLT) in the study eye.
- Corneal opacity preventing adequate gonioscopic visualization of the angle.
- Associated retinal disease or non-glaucomatous optic nerve disease.
- Inability or unwillingness to adhere to the follow-up schedule.
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Tratamiento
- Asignación: No aleatorizado
- Modelo Intervencionista: Asignación paralela
- Enmascaramiento: Ninguno (etiqueta abierta)
Armas e Intervenciones
Grupo de participantes/brazo |
Intervención / Tratamiento |
|---|---|
|
Experimental: POAG Group (Phaco-Goniotomy)
Patients with uncontrolled or progressive primary open-angle glaucoma (POAG) and coexisting cataract undergoing clear corneal phacoemulsification with intraocular lens (IOL) implantation combined with ab-interno nasal incisional goniotomy (120°-140°) using a 20G MVR blade or 27G needle under direct Swan-Jacob goniolens visualization.
|
Standard temporal clear corneal phacoemulsification (2.2-2.4 mm incision) with foldable acrylic intraocular lens (IOL) implantation into the capsular bag under local anesthesia.
Following IOL placement and anterior chamber reformation with cohesive viscoelastic, the patient's head is rotated 35°-40° and the surgical microscope tilted 30°-40°.
Under direct visualization using a Swan-Jacob goniolens, an ab-interno nasal incisional goniotomy spanning approximately 120°-140° of the trabecular meshwork is performed through the main corneal incision using a 20G MVR blade or 27G needle tip.
Viscoelastic is then completely aspirated, wound integrity is confirmed, and intracameral antibiotic may be administered.
|
|
Experimental: PACG Group (Phaco-Goniotomy)
Patients with uncontrolled or progressive primary angle-closure glaucoma (PACG) and coexisting cataract undergoing clear corneal phacoemulsification with intraocular lens (IOL) implantation combined with ab-interno nasal incisional goniotomy (120°-140°) using a 20G MVR blade or 27G needle under direct Swan-Jacob goniolens visualization.
|
Standard temporal clear corneal phacoemulsification (2.2-2.4 mm incision) with foldable acrylic intraocular lens (IOL) implantation into the capsular bag under local anesthesia.
Following IOL placement and anterior chamber reformation with cohesive viscoelastic, the patient's head is rotated 35°-40° and the surgical microscope tilted 30°-40°.
Under direct visualization using a Swan-Jacob goniolens, an ab-interno nasal incisional goniotomy spanning approximately 120°-140° of the trabecular meshwork is performed through the main corneal incision using a 20G MVR blade or 27G needle tip.
Viscoelastic is then completely aspirated, wound integrity is confirmed, and intracameral antibiotic may be administered.
|
¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
|
Change in Intraocular Pressure
Periodo de tiempo: Baseline and 6 months postoperatively
|
Intraocular pressure is measured in millimeters of mercury (mmHg) using Goldmann applanation tonometry.
Values represent the change in IOP calculated as post-intervention IOP minus baseline IOP.
|
Baseline and 6 months postoperatively
|
Colaboradores e Investigadores
Patrocinador
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio (Estimado)
Finalización primaria (Estimado)
Finalización del estudio (Estimado)
Fechas de registro del estudio
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Actual)
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
Otros números de identificación del estudio
- Phaco-Goniotomy: POAG vs. PACG
Información sobre medicamentos y dispositivos, documentos del estudio
Estudia un producto farmacéutico regulado por la FDA de EE. UU.
Estudia un producto de dispositivo regulado por la FDA de EE. UU.
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