ArticleOrphanet journal of rare diseases2024
A qualitative study to explore the burden of disease in activated phosphoinositide 3-kinase delta syndrome (APDS).
Article in Orphanet journal of rare diseases, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
8 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Systematic literature reviews to identify epidemiological, clinical, economic and health-related quality of life evidence in activated PI3Kδ syndrome (APDS).BMC immunology · 2025Pooled it
- Evaluating the impact of leniolisib treatment on symptoms and health-related quality of life in activated phosphoinositide 3-kinase delta (PI3Kδ) syndrome.Frontiers in immunology · 2026Trial
- Associations Between Short-Term Changes in Disease Activity and Long-Term Clinical Outcomes in Activated Phosphoinositide 3-Kinase Delta Syndrome.Journal of immunology research · 2026Trial
- A randomised, placebo-controlled, phase III trial of leniolisib in activated phosphoinositide 3-kinase delta (PI3Kδ) syndrome (APDS): Adolescent and adult subgroup analysis.Clinical immunology (Orlando, Fla.) · 2025Trial
- A qualitative study to reveal devastating impacts of chronic fracture-related infection.Scientific reports · 2026Article
- Real-World Health Care Resource Utilization and Costs Among Patients with Activated Phosphoinositide 3-Kinase Delta (PI3Kδ) Syndrome in the United States.Advances in therapy · 2025Article
- The Impact of Activated Phosphoinositide 3-Kinase δ Syndrome (APDS) on Health-Related Quality of Life (HRQoL): Elicitation of Health State Utility Values Through Time Trade-Off (TTO) and EQ-5D.Advances in therapy · 2025Article
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Authors and funding
11 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundActivated phosphoinositide 3-kinase delta syndrome (APDS) is an ultra-rare primary immunodeficiency, with only 256 cases reported globally. This study aimed to explore the disease burden of APDS from the perspective of individuals with APDS and their caregivers.
methodsQualitative interviews were conducted with healthcare providers (HCPs), individuals with APDS and caregivers, to explore the symptoms and health-related quality of life (HRQoL) impact of APDS. Some individuals and caregivers also completed a narrative account exercise. All interviews were audio recorded and transcribed. Data were analysed using thematic analysis and saturation was recorded.
resultsSemi-structured qualitative interviews were conducted with healthcare providers (HCPs), individuals with APDS and caregivers. Individuals and caregivers had the option of completing a narrative account exercise. Six HCPs participated in an interview. Seven participants completed the narrative account exercise (N = 5 caregivers and N = 2 individuals with APDS) and 12 took part in an interview (N = 4 caregivers and N = 8 individuals with APDS). Themes identified from HCPs interviews included symptoms, clinical manifestations, HRQoL impacts and treatments/management of APDS. The narrative account exercise identified similar themes, but with the addition to the journey to diagnosis. These themes were explored during the individual/caregiver interviews. Reported clinical manifestations and symptoms of APDS included susceptibility to infections, lymphoproliferation, gastrointestinal (GI) disorders, fatigue, bodily pain, and breathing difficulties. HRQoL impacts of living with APDS included negative impacts to daily activities, including work, education and social and leisure activities, physical functioning, as well as emotional well-being, such as concern for the future, and interpersonal relationships. Impacts to caregiver HRQoL included negative impacts to physical health, work, emotional well-being, interpersonal relationships and family life and holidays. The management of APDS included the use of healthcare services and medications including immunoglobulin replacement therapy (IRT), rapamycin, prophylactic antibiotics, leniolisib, as well as medical procedures due to complications.
conclusionsAPDS has a high disease burden and there is an unmet need for licensed, more targeted treatments which modify disease progression. This study was the first to describe the day-to-day experience and HRQoL impact of APDS from the perspective of individuals living with the condition, caregivers and treating physicians.
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