Abstract Introduction: CLL disease control and survival outcomes have improved since the introduction of Bruton tyrosine kinase inhibitors (BTKis). Since CLL often requires treatments, understanding patient preferences is critical in optimizing adherence and overall satisfaction. However, there are limited published data on how Korean patients prioritize treatment efficacy, safety and the convenience of administration. To address this gap, a discrete choice experiment (DCE) methodology was applied in a comprehensive quantitative analysis to evaluate patient preferences for BTKi treatment attributes among patients with CLL in Korea. Methods: Adult patients (≥18 years of age) with a confirmed diagnosis of CLL in Korea were recruited by The Korea Blood Disease & Cancer Association to participate in an online DCE survey questionnaire from April 30, 2025 to May 22, 2025. Treatment attributes and levels were identified based on published literature and clinical inputs. Efficacy attributes included progression-free survival (PFS); safety attributes included impacts of adverse events (AEs), including diarrhea, headache, atrial fibrillation and hypertension, on quality of life (QoL); convenience attributes included formulation type (including tablet or capsule) and dosing frequency (including once daily or twice daily). Preference data was analyzed using a conditional logistic regression. Relative importance of BTKi treatment attributes were calculated to measure the importance of each attribute in treatment decision-making. Additionally, subgroup analyses were conducted among patients aged <60 years and ≥60 years, those who received 2 or more lines (2L+) of treatments, and those who experienced AEs from CLL treatment. Results: A total of 57 patients completed the survey. The mean age was 61 years, with 46% aged <60 years and 54% aged ≥60 years. Female patients comprise 35% of the sample. Around 33% had a high school education or less, and 23% were employed full-time. More than half (54%) reported no comorbid conditions, and 70% were diagnosed ≥5 years ago (26% diagnosed 1 to <5 years ago; 4% diagnosed less than a year ago). In terms of treatment experience, 11% were treatment naive, while 89% received ≥1 treatment (61% first-line, 21% second-line and 7% third-line or later). In the context of CLL treatment preferences, patients showed a significant preference (P < .05) for therapies that minimized the impact of AEs on QoL, offered longer PFS, and required less frequent dosing. Formulation type did not have a statistically significant impact on treatment choice. Overall, patients placed greater importance on how treatment-related attributes affect their QoL and dosing frequency. The highest-ranked factors were the impact of headache (22%) and diarrhea (21%) on QoL, followed by dosing frequency (19%), the impact of atrial fibrillation (16%) and hypertension (14%) on QoL, PFS (7%), and formulation type (0.6%). Results from the subgroup analyses were generally consistent with the full sample analysis, with impacts of AEs on QoL being the most important factors for treatment decision-making, especially among older patients, although the relative ranking of impacts of AEs varied by age groups and treatment experience. Regarding efficacy, younger patients (<60 years of age) valued PFS slightly more than older patients (≥60 years of age), ranking it 4th and 6th out of the 10 attributes, respectively. Additionally, preference on dosing frequency was more important for 2L+ patients, reflecting the treatment burden experienced from previous regimens. Conclusions: This study provides valuable insights into the treatment preferences of Korean patients with CLL, highlighting the importance of QoL considerations for treatment decision-making. Among the evaluated attributes, patients placed the greatest weight on minimizing the impacts of AEs, particularly headache and diarrhea, on daily functioning, followed by dosing frequency. These preferences underscore the need for patient-centered care that prioritizes not only clinical efficacy but also tolerability and convenience. These insights can inform shared decision-making and support the development of personalized treatment strategies that better align with patient needs and expectations in Korea.
Diagnosis and Treatment of Femoral Head Osteonecrosis: A Protocol for Development of Evidence-Based
Clinical Practice Guidelines
Introduction: There are many treatment options for patients who have osteonecrosis of the femoral head (ONFH) and management strategies vary widely both among and within individual countries. Although many researchers have attempted to elucidate the optimal strategies for managing this disease, the lack of large-scale randomized control trials and the lack of agreement on disease staging have curtailed the development of clear-cut guidelines. Materials and Methods: The Association Research Circulation Osseous (ARCO) group sought to address three questions for the management of patients who have ONFH: 1) What imaging studies are most sensitive and specific for the diagnostic evaluation of patients who have ONFH?; 2) What is the best treatment strategy for preventing disease progression in patients who have pre-collapse lesions?; and 3) What is the best treatment strategy for patients who have post-collapse disease? The Patient, Intervention, Comparison, and Outcome (PICO) format was used to formulate the search strategy for each research question. A systematic review will be performed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. ARCO participants have been allocated to three groups, each representing one of the PICO questions. After qualitative and quantitative analysis of the data extracted from studies pertaining to each of the three research questions, a set of evidence-based clinical practice guidelines will be proposed for the management of patients who have ONFH. Discussion: It is not always clear which treatment method is optimal for the management of ONFH. Thus, many surgeons have developed and performed various procedures based on patient-specific factors. As there is no consensus on the optimal treatment for various stages of disease, it was clear that developing evidence-based clinical practice guidelines would provide more structure and uniformity to management of these patients. Therefore, the results of this systematic review will lead to the development guidelines that may improve patient-care strategies and result in better outcomes for patients who have ONFH.