Publications by authors named "Michael D Frost"

Article Synopsis
  • Children with tuberous sclerosis complex (TSC) have a high risk of developing drug-resistant epilepsy (DRE), making it crucial to identify those at greatest risk for timely management.
  • The study analyzed data from 70 infants with TSC to evaluate the relationship between specific TSC genotypes and the likelihood of experiencing DRE, using a variety of statistical methods.
  • Findings revealed that TSC2 pathogenic variants were strongly linked to DRE, with all DRE cases found in participants carrying TSC2 mutations; in contrast, TSC1 variants were associated with later-onset epilepsy, highlighting important differences in risk profiles.
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Background: Tuberous sclerosis complex (TSC) is an autosomal dominant genetic disease affecting multiple body systems with wide variability in presentation. In 2013, Pediatric Neurology published articles outlining updated diagnostic criteria and recommendations for surveillance and management of disease manifestations. Advances in knowledge and approvals of new therapies necessitated a revision of those criteria and recommendations.

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Background: Tuberous sclerosis complex (TSC) is a rare genetic disorder characterized by benign tumors in multiple organs, including non-cancerous kidney lesions known as renal angiomyolipomas. This study's objective is to describe the age-stratified morbidity, treatment patterns, and health-related quality of life of TSC patients with renal angiomyolipomas in the United States. A cross-sectional, anonymous web-based survey was conducted with a convenience sample of TSC patients and caregivers identified through a patient advocacy organization.

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Background: A reduction in renal angiomyolipoma volume observed with everolimus (EVE) treatment in patients with tuberous sclerosis complex (TSC) has been postulated to translate to clinical benefit by reducing the risk of renal hemorrhage and chronic renal failure.

Methods: The long-term effects of EVE on renal function (∼4 years of treatment) were examined in patients treated with EVE in the Phase 3 EXIST-1 and EXIST-2 studies. Patients in EXIST-1 had TSC and subependymal giant cell astrocytoma (SEGA), and patients in EXIST-2 had renal angiomyolipoma and a definite diagnosis of TSC or sporadic lymphangioleiomyomatosis.

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Article Synopsis
  • - Tuberous sclerosis complex (TSC) is a genetic disorder that affects multiple organ systems, leading to significant healthcare and economic burdens, particularly impacting the lives of patients and their families.
  • - A study involving a web survey of 609 individuals with TSC and their caregivers revealed that adults with TSC faced higher medical costs and greater work/school absenteeism and presenteeism compared to pediatric patients and their caregivers.
  • - The findings highlight the substantial financial and productivity challenges posed by TSC, emphasizing a need for further research to evaluate the direct cost burden in the U.S. and understand its impact on employment and healthcare systems.
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Background: Patients with tuberous sclerosis complex (TSC) often have multiple TSC-associated hamartomas, particularly in the brain and kidney.

Methods: This was a post hoc analysis of pediatric patients being treated for subependymal giant cell astrocytomas (SEGAs) during the phase 3, randomized, double-blind, placebo-controlled EXIST-1 trial. Patients were initially randomly assigned to receive everolimus 4.

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Objectives: We examined the long-term effects of everolimus in patients with renal angiomyolipoma associated with tuberous sclerosis complex or sporadic lymphangioleiomyomatosis.

Methods: Following favorable results from the double-blind core phase of EXIST-2 (NCT00790400), patients were allowed to receive open-label everolimus (extension phase). Patients initially randomly assigned to everolimus continued on the same dose; those who were receiving placebo crossed over to everolimus 10 mg/day.

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Background: Everolimus, a mammalian target of rapamycin (mTOR) inhibitor, has demonstrated efficacy in treating subependymal giant cell astrocytomas (SEGAs) and other manifestations of tuberous sclerosis complex (TSC). However, long-term use of mTOR inhibitors might be necessary. This analysis explored long-term efficacy and safety of everolimus from the conclusion of the EXIST-1 study (NCT00789828).

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Disease burden associated with tuberous sclerosis complex, a genetic disorder characterized by benign tumor growth including lesions in multiple organs, puts tremendous demands on families. This analysis examines the physical and mental health burden of tuberous sclerosis complex caregivers in the United States. An institutional review board-approved web-based survey of tuberous sclerosis complex caregivers collected information; descriptive analyses were conducted on age-based subgroups.

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Purpose: Tuberous sclerosis complex (TSC) is a multiorgan, autosomal-dominant genetic disorder with incomplete penetrance.

Methods: This analysis of a web-based survey focuses on the clinical presentation, management, and associated burden of patients with TSC in the United States.

Results: A total of 676 TSC patients or caregivers responded.

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Background: Tuberous sclerosis complex (TSC) is characterized by benign tumours in multiple organs, including the brain, kidneys, skin, lungs and heart. Our objective was to evaluate everolimus, an mTOR inhibitor, in the treatment of angiomyolipoma in patients with subependymal giant cell astrocytoma (SEGA) associated with TSC.

Methods: EXamining everolimus In a Study of Tuberous Sclerosis Complex-1 (NCT00789828), a prospective, double-blind, randomized, placebo-controlled, Phase 3 study, examined everolimus in treating SEGA associated with TSC.

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Tuberous sclerosis complex is a genetic disorder characterized by benign tumor growth including lesions in the ventricular system of the brain known as subependymal giant cell astrocytomas. This analysis focuses on the clinical presentation, management, and associated burden of subependymal giant cell astrocytomas in patients with tuberous sclerosis complex in the United States. An institutional review board-approved web-based survey of tuberous sclerosis complex patients and caregivers collected information, and descriptive analyses were conducted on age-based subgroups.

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