Three-year outcomes of valoctocogene roxaparvovec gene therapy for hemophilia A.

BACKGROUND: Valoctocogene roxaparvovec transfers a human factor (F)VIII coding sequence into hepatocytes of people with severe hemophilia A to provide bleeding protection. OBJECTIVES: To present 3-year efficacy and safety in the multicenter, open-label, single-arm, phase 3 GENEr8-1 trial. METHODS: GENEr8-1 enrolled 134 adult males with severe hemophilia A who were receiving FVIII prophylaxis. Efficacy endpoints included annualized bleeding rate, annualized FVIII utilization, FVIII activity (chromogenic substrate assay; imputed as 1 IU/dL at baseline and 0 IU/dL after discontinuation), and the Haemophilia-Specific Quality of Life Questionnaire for Adults. Safety was assessed by adverse events (AEs). RESULTS: At week 156, 131 of 134 participants remained in the study; overall, 17 of 134 resumed prophylaxis. Mean annualized bleeding rate for treated bleeds decreased from 4.8 (SD, 6.5) bleeds/y at baseline to 0.8 (SD, 2.3; P < .0001) bleeds/y after prophylaxis (prophylaxis cessation to last follow-up) and 0.97 (SD, 3.48) bleeds/y during year 3. Annualized FVIII utilization decreased 96.8% from baseline after prophylaxis and 94.2% during year 3. At week 156, mean and median FVIII activity were 18.4 (SD, 30.8) and 8.3 IU/dL, respectively. FVIII activity decrease was lower between years 2 and 3 than between years 1 and 2. At the end of year 3, clinically meaningful improvements in the Haemophilia-Specific Quality of Life Questionnaire for Adults Total Score were observed (mean change from baseline, 6.6; 95% CI, 4.24-8.87; P < .0001). Mild alanine aminotransferase elevations remained the most common AE during year 3 (23.7% of participants). A serious AE of B-cell acute lymphoblastic leukemia was considered unrelated to treatment. CONCLUSION: Hemostatic efficacy was maintained, and safety remained unchanged from previous years.

Beyond study participants: a framework for engaging patients in the selection or development of clinical outcome assessments for evaluating the benefits of treatment in medical product development.

BACKGROUND: Patients are participating more actively in health care decision-making with regard to their health, as well as in the broader realm of assessing the value of medical products and influencing decisions about their registration and reimbursement. There is an increasing trend to include patients' perspectives throughout the stages of medical product development by broadening the traditional study-participant role to that of an active partner throughout the process. Including patients in the selection and development of clinical outcome assessments (COAs) to evaluate the benefit of treatment is particularly important. Still, despite widespread enthusiasm, there is substantial uncertainty regarding how and when to engage patients in this process. PURPOSE: This manuscript proposes a methodological framework for engaging patients at varying levels in the selection and development of COAs for medical product development. FRAMEWORK: The framework builds on the Food and Drug Administration's roadmap for patient-focused COA. Methods for engaging patients across each stage in this roadmap are summarized by levels of engagement. Opportunities and examples of patient engagement (PE) in the selection and/or development of COAs are summarized, together with best practices and practical considerations. CONCLUSION: This paper offers a framework for understanding, planning, and implementing methods to advance PE in the selection and/or development of COAs for evaluating the benefit of medical products. The intent is to further this important discussion and enhance the process and outcome of PE in this context.

Patient Evaluation of Satisfaction and Outcomes with an Autoinjector for Self-Administration of Subcutaneous Belimumab in Patients with Systemic Lupus Erythematosus.

OBJECTIVE: This study assessed patient experiences of using an autoinjector device to self-administer subcutaneous belimumab for the treatment of systemic lupus erythematosus (SLE). Satisfaction, ease and convenience of use, and confidence with the device were assessed, in addition to overall experience with belimumab. METHODS: This cross-sectional study was conducted among patients who completed a phase IIb open-label, multi-dose usability, tolerability, and safety study of subcutaneous belimumab (NCT02124798), in which patients receiving intravenous belimumab or subcutaneous belimumab using a prefilled syringe were switched to eight weekly self-administered doses of subcutaneous belimumab using the autoinjector. This follow-up study comprised an online/paper questionnaire and qualitative telephone interviews. RESULTS: In total, 43 patients receiving belimumab completed the questionnaire, 21 of whom also completed a follow-up telephone interview. Qualitative interviews indicated that 17 of 21 (81%) patients had a positive experience using the autoinjector; all patients considered the autoinjector to be convenient. Of the 42 patients who switched from intravenous belimumab to the autoinjector, 32 (76%) expressed a preference for the autoinjector over intravenous administration; reasons included convenience, time saved, cost, and reduced injection pain. The most commonly reported disadvantage of the autoinjector was injection discomfort (n = 5 [24%]; qualitative interview). Compared with intravenous administration, the autoinjector improved ability to work (17 of 29 [59%] of those employed) and carry out daily activities (40%). CONCLUSION: Patients with SLE reported high levels of satisfaction with the belimumab autoinjector and preferred the autoinjector to intravenous administration, citing advantages such as time saved, cost, and improved ability to work and carry out daily activities.

Psychometric Evaluation of the Hypogonadism Impact of Symptoms Questionnaire.

INTRODUCTION: The Hypogonadism Impact of Symptoms Questionnaire (HIS-Q) is a patient-reported outcome measurement designed to comprehensively evaluate the symptoms of hypogonadism and to detect changes in these symptoms in response to treatment. AIM: To conduct item analysis and reduction, evaluate the psychometric properties of the HIS-Q, and provide guidance on interpreting the instrument score. METHODS: A 12-week observational, longitudinal study of hypogonadal men was conducted. Participants completed the HIS-Q every 2 weeks. Blood samples were collected to evaluate testosterone levels. Participants also completed the Aging Male's Symptoms Scale, the International Index of Erectile Function, the Short Form-12 Health Survey, and the Patient-Reported Outcomes Measurement Information System Sexual Activity, Satisfaction with Sex Life, Sleep Disturbance, and Applied Cognition Scales (at baseline and weeks 6 and 12). Clinicians completed the Clinical Global Impression of Severity and Change measurements and a clinical form. MAIN OUTCOME MEASURES: Individual item performance was evaluated using descriptive statistics and Rasch analyses. Reliability (internal consistency and test-retest), validity (concurrent and know groups), and responsiveness were assessed. RESULTS: In total, 177 men participated in the study (mean age = 54.1 years, range = 23-83). The original 53-item draft HIS-Q was reduced to 28 items; the final instrument included five domains (sexual, energy, sleep, cognition, and mood) with two sexual subdomains (libido and sexual function). For all domains, test-retest reliability was acceptable (intraclass correlation coefficients > 0.70), construct validity was good (|r > 0.30| for all comparisons). Known-groups validity was demonstrated for all HIS-Q domain scores, subdomain scores, and the total score as measured by the Clinical Global Impression of Severity, and total testosterone level at baseline (P < .05 for all comparisons). All domains and subdomains were responsive to change based on patient-rated anchor questions (P < .05 for all comparisons). CONCLUSION: The final 28-item HIS-Q is reliable, valid, and responsive. The HIS-Q is suitable for inclusion in future clinical trials to help characterize the effects of testosterone replacement therapy.