Patient-reported outcomes in patients with primary immunodeficiency diseases in Japan: baseline results from a prospective observational study

Subcutaneous immunoglobulin replacement therapy in patients with immunodeficiencies - impact of drug packaging and administration method on patient reported outcomes

BACKGROUND

Here, the perspective of patients with primary and secondary immunodeficiency receiving subcutaneous immunoglobulin (SCIg) via introductory smaller size pre-filled syringes (PFS) or vials were compared.

METHODS

An online survey was conducted in Canada by the Association des Patients Immunodéficients du Québec (APIQ) (10/2020-03/2021). Survey questions included: reasons for choosing SCIg packaging and administration methods, training experiences, infusion characteristics, and switching methods. The survey captured structured patient-reported outcomes: treatment satisfaction and its sub-domains, symptom state, general health perception, and physical and mental function. Respondents using PFS were compared with vial users, overall and stratified by their administration method (pump or manual push).

RESULTS

Of the 132 total respondents, 66 respondents used vials, with 38 using a pump and 28 using manual push. PFS (5 and 10 mL sizes) were being used by 120 respondents, with 38 using a pump and 82 using manual push. PFS users were associated with a 17% lower median (interquartile range) SCIg dose (10 [8, 12] vs. 12 [9, 16] g/week, respectively), a significantly shorter infusion preparation time (15 [10, 20] vs. 15 [10, 30] mins, respectively), and a trend for shorter length of infusion (60 [35, 90] vs. 70 [48, 90] mins, respectively) compared with those on vials. Patient-reported treatment satisfaction scores were overall similar between vial and PFS users (including on the domains of effectiveness and convenience), except for a higher score for vials over PFS on the domain of global satisfaction (p=0.02).

CONCLUSIONS

Consistent with prescribing that reflects a recognition of less wastage, PFS users were associated with a significantly lower SCIg dose compared with vial users. PFS users were also associated with shorter pre-infusion times, reflecting simpler administration mechanics compared with vial users. Higher global satisfaction with treatment among vial users compared with PFS users was consistent with users being limited to smaller PFS size options in Canada during the study period. Patient experience on PFS is expected to improve with the introduction of larger PFS sizes. Overall, treatment satisfaction for SCIg remains consistently high with the introduction of PFS packaging compared with vials.

Life quality, depression, and anxiety levels in parents of children with primary immunodeficiency

BACKGROUND

Primary immune deficiencies (PID) encompasses genetic disorders that result in recurrent infections and immune dysregulation, often increasing the risk of malignancies. The aim of this study is to determine the quality of life, depression, and anxiety in parents of children with PID.

METHODS

Various validated assessment tools, including the Beck Depression Inventory (BDI), State and Trait Anxiety Inventory (STAI), the 36-item Short Form Survey (SF-36), and a demographic form, were employed to gather data from 85 parents of 64 PID patients and 85 parents of 75 healthy children.

RESULTS

The findings reveal that parents of PID patients exhibited higher BDI, STAI-S, STAI-T, and fatigue subdomain of SF-36 (p = .013, p = .013, p = .027, p = .000). Both parents had lower energy levels than the normal population, but mothers experienced higher levels of anxiety and depression. PID mothers' had higher scores than fathers of PID patients with healthy children in BDI, STAI-S, and STAI-T (p = .002, p = .010, p = .001). Mothers of PID patients reported lower scores in RLEP, E/F, EWB, P, and GH compared to fathers (p = .009, p = .005, p = .034, p = .001, p = .003). Additionally, the study found that STAI-T influenced all subdimensions of HRQOL. These results highlight the substantial emotional and psychological burden placed on parents caring for children with PID.

CONCLUSION

The study underscores the importance of supporting caregivers to enhance the overall well-being of both parents and children with PID. Such support can potentially alleviate depression and anxiety levels among parents, ultimately improving their quality of life and aiding in the management of children with PID.