View clinical trials related to Retinoblastoma.
Filter by:Rationale: Currently baseline brain MRI (magnetic resonance imaging) with extended follow-up of pineal cysts is systematically performed in all new retinoblastoma (Rb) patients, because children with hereditary retinoblastoma have an increased risk of primitive neuroectodermal tumors (PNET) that are histopathologically identical to the retinal tumors (1). The prevalence of developing a PNET in combination with unilateral or bilateral hereditary Rb is 5-15% (2). Treatment is difficult and the prognosis is poor as only few survivors are reported. Only patients with small asymptomatic PNETs (<15 mm) are potentially curable. Objective: The main objective of this prospective multicenter study is to evaluate the current strategy of baseline MRI screening of the brain in newly diagnosed retinoblastoma patients, with extended follow-up of selected patients with simple and complicated pineal cysts. Study design: The investigators propose a prospective cohort study (part of a larger multicenter study) to investigate the diagnostic accuracy and survival of baseline MRI screening of the pineal gland in new patients with retinoblastoma, with extended follow-up of selected patients with pineal cysts for early detection of pineoblastoma. Study population: Within the European Retinoblastoma Imaging Collaboration (ERIC) about 150 new retinoblastoma patients are diagnosed every year. About 10 percent of all new retinoblastoma patients will be diagnosed at the VUmc. According to our sample size calculations the investigators will need 334 Rb patients. Main study parameters/endpoints: The primary endpoint of the study is pineoblastoma or supra- / parasellar PNET on MRI (index test). Because a gold standard will not be available, tumor cells in cerebrospinal fluid, histopathological confirmation, clinical disease progression during follow-up, and/or follow-up MRI diagnostics will be used as a composite reference standard in case of a positive index test and clinical diagnosis of pineoblastoma or supra- / parasellar PNET within one year of the last MRI will be used as a composite reference standard in case of a negative index test.
To study the effectiveness and safety profiles of photodynamic therapy (PDT) for the treatment of human retinoblastoma.
The purpose of this study is to evaluate different sutures for orbital implants in retinoblastoma patients.
Rationale: Individuals with a cancer predisposition due to a mutation in the paradigm tumor suppressor gene RB1, have a high risk to develop the childhood cancer retinoblastoma (Rb). Biopsies are not possible in Rb, before treatment selection. Heritable Rb patients have also a high risk to develop other types of second primary, either childhood or adult, malignancies (SPMs), notably sarcomas and melanomas. Remarkably, SPMs are now the leading cause of death in heritable-Rb-survivors. Unfortunately, there are no well-developed regular surveillance protocols for SPMs in Rb survivors available right now. Recently, new non-invasive cancer test have been developed, based on either RNA-sequencing data from platelets (ThromboSeq), or on extracellular membrane vesicles (EVs) derived from tumor cells present in blood. Objective: - Determine the non-cancerous baseline in adult RB1-mutation carriers (heritable-Rb-survivors). - Contribute to the biobanking of blood and cancerous tissues from RB1-mutation carriers with SPMs. - The development of blood-based tests, either platelet or EV-based, for the detection of (the type of) tumors in RB1-mutation carriers. Study design: Cross-sectional multicenter trial. Study population: - 40 Rb patients (children), - 40 controls (children), - 153 Rb survivors (adults), - 153 controls (adults), - 10 Rb survivors with SPM (children/adults). Main study parameters/endpoints: - Determine the non-cancerous baseline in adult RB1-mutation carriers (heritable-Rb-survivors). - Contribute to the biobanking of blood and cancerous tissues from RB1-mutation carriers with SPMs. Nature and extent of the burden and risks associated with participation, benefit and group relatedness: Two blood samples totalling 10ml blood will be collected for every participant. Additionally, a short questionnaire has to be filled in concerning their and their family's cancer history. Blood draws will be done, when participants are already present in the hospital for other appointments, and thus no extra visits are required. For all children, blood will be collected through an already present IV, and so no extra venepuncture is required. Children have to be included because Rb is a tumor only present in this patient group.
Retrospective review of 5-year long term outcomes of superselective intra-arterial chemotherapy treatment in retinoblastoma in a single institute. The treatment outcomes, globe salvage rates and complications of superselective intra-arterial chemotherapy both for treating naive patients (primary treatment group) and for patients who received systemic chemotherapy previously (secondary treatment group) were evaluated.
To study the clinical characteristics and treatment outcomes of patients who experienced inadvertent trauma before diagnosis of retinoblastoma.
Digital case management systems have the potential to increase compliance with protocol-driven treatment, reduce treatment abandonment and ultimately help to close the discrepancy in pediatric cancer outcomes between Low and Middle Income Countries (LMICs) and high-income countries (HICs). The investigators aim to adapt an open-source digital case management platform to incorporate standardized pediatric oncology protocols. Effectiveness will be evaluated by provider protocol compliance (primary outcome) and patient treatment abandonment rates using the digital case management system as compared to historic controls. The study population will include patients diagnosed with Burkitt lymphoma, Diffuse large B-cell lymphoma (DLBCL) or retinoblastoma at Bugando Medical Centre in Tanzania.
A patient undergoing ophthalmic arterial chemosurgery may experience a sudden, profound decrease in lung compliance when the microcatheter is in the ICA or ophthalmic artery. However, underlying pathophysiology of the respiratory complication is unknown. In this study, the investigators are going to investigate the relation between underlying balance of parasympathetic and sympathetic tone and the respiratory complications by analyzing heart rate beat-to-beat variability.
Retinoblastoma (RB) is the most common intraocular tumor of childhood. Recurrent or refractory disease following therapy most often occurs due to persistence of vitreous disease and/or retinal reactivation of the main tumor mass. With this treatment protocol, investigators seek to identify a less invasive method of local drug delivery that does not disrupt the eye's integrity. PRIMARY OBJECTIVE: - To determine the safety and toxicity profile associated with intravitreal carboplatin for the treatment of recurrent or progressive intraocular retinoblastoma with vitreous seeding. SECONDARY OBJECTIVES: - To estimate the ocular salvage rate after treatment with intravitreal carboplatin in patients with recurrent or progressive intraocular retinoblastoma with vitreous seeding. - To evaluate the effects of intravitreal carboplatin therapy on the histopathology of eyes enucleated for progressive or recalcitrant disease while on therapy.
Background: Serious adverse cardio-respiratory events (SCRE) occur during super selective ophthalmic artery chemotherapy for retinoblastoma in children. SCRE mechanism remains unclear but may be attributed to an autonomic nervous reflex induced by catheterization of the ophthalmic artery. The investigators hypothesize that inadequacy between depth of anesthesia and catheter stimulation might be a support cause of these SCRE. Methods: Children requiring super selective ophthalmic artery chemotherapy for retinoblastoma are prospectively included in this observational study. Endovascular procedures are performed under standardized and deep general anesthesia with sevoflurane, sufentanil and rocuronium. SCRE are strictly pre-defined and included arterial hypotension, bradycardia and bronchospasm. SCRE are recorded and the factors influencing their occurrence are investigated.