Assessment of geriatric predictors of adherence to Zoledronic acid treatment for osteoporosis: a prospective follow-up study

The interruption of romosozumab treatment during COVID lockdown among US post-menopausal women enrolled in Medicare

PURPOSE

To evaluate the impact of the COVID lock-down on treatment interruptions of romosozumab, a first in class biologic therapy, administered by healthcare providers once monthly.

METHODS

We used Medicare data from 1/1/2017 to 9/30/2021 to identify women age ≥65 initiating romosozumab between 4/1/2019 and 6/30/2021. Patient demographics, provider specialty, and baseline comorbidities were identified. Romosozumab dispensations were grouped into five 6-month periods based on the dispensing date from FDA licensure to the end of the data (Period 1 to 5). "Treatment interruption" was defined as any interval gap between 2 dispensations >60 days. The numbers of treatment interruption event were aggregated per period per patient. Mixed effect Poisson regression with patient-level random effects was performed, including an interaction term between Period and number of prior doses.

RESULTS

There were 12,216 romosozumab new users identified. A total of 2724 treatment interruption events were identified among 2229 romosozumab users. After adjustment, comparing with the period immediately before the lockdown (Period 2: 2019-10-1-2020-3-30), the IRRs (95 % CI) for treatment interruption were 0.49 (0.29, 0.81), 1.65 (1.48, 1.85), 1.79 (1.60, 2.01), and 1.67 (1.49, 1.87) for periods 1, 3, 4, and 5, respectively, per 1 prior dose change (p < 0.01 for all IRRs), where Periods 3, 4, and 5 were post-lockdown.

CONCLUSION

Compared to the pre-COVID period, the lockdown negatively impacted the continuity of romosozumab treatment among Medicare beneficiaries. Prioritizing in-time assistance for patients receiving a provider-administered parenteral therapy is critical when patients' in-person access to their provider is compromised.

Effect of patient-led cooperative follow-up by general practitioners and community pharmacists on osteoporosis treatment persistence

AIM

Osteoporosis is a major risk factor for fractures. Poor persistence with osteoporosis medication hampers outcomes. This study assessed whether encouraging the formation of patient-led follow-up cooperatives between general practitioners (GPs) and community pharmacists improved medication persistence.

METHODS

All consecutive patients who attended an osteoporosis patient education program were invited to participate. They were given a logbook containing questionnaires they would bring to 6-monthly visits to their GP and pharmacist. The effect of this 3-year cooperative follow-up on persistence with medication and lifestyle changes was assessed.

RESULTS

In total, 121 patients (average age, 67 years; 93% female) participated. Poor cooperation between GPs and pharmacists was noted. Nevertheless, medication persistence ranged from 83% to 91% over the 6 visits. However, since patient drop-out rates were high and questionnaire return rates were low, a post-study medical chart review was performed. This confirmed that persistence was high (74%-83%) at 3 years post-enrollment, even for oral bisphosphonate-treated patients (73%-76%). However, adoption of anti-osteoporosis lifestyle changes was poor throughout the study: one- to two-thirds of the patients did not alter their diet, physical activity, or surroundings to prevent falls.

CONCLUSION

One study goal, namely, to encourage GPs and pharmacists to cooperate in patient follow-up, was not achieved. However, high medication persistence was observed. This may reflect the education program, patient empowerment, personalized attention from study personnel, and being in a study. Patient-centered approaches can thus significantly increase medication persistence in osteoporosis. Ongoing education may be needed to improve patient adoption of and persistence with lifestyle changes.

Age at First Osteoporosis Screening Among Older Women and Men: Is Bone Mineral Density Measurement Ordered Timely?

BACKGROUND

US National Osteoporosis Foundation has specified age cut-offs for osteoporosis screening in older women and men.

OBJECTIVE

In this study, we investigated whether Turkish seniors undergo their first ever osteoporosis screening early, on time or late.

METHODS

We determined the age of older women and men at their first-time Bone Mass Densitometry (BMD) testing using the medical records of a geriatric outpatient unit. The timing of the BMD test was considered ''late'' when performed after the age of 65 and 70 in women and men, respectively. An "early" screening was defined as having a BMD measurement before these age cut-offs.

RESULTS

We included 481 individuals in the study (mean age: 74.5±6.5 years, women: 62%). On admission, around 18% of the sample could give no definite information and another 35% had never been assessed for osteoporosis. Among those with a past screening, 64.8% reported comorbid osteoporosis and 33% reported no osteoporosis. Mean age of the first-time BMD measurement was 67.4±7.7 years. The first-time BMD measurement was on time in 9.7%, early in 37.4% and late in 52.9% of the subjects. Half of the individuals with a self-reported osteoporosis diagnosis were non-osteoporotic on a new BMD ordered following the geriatric assessment. Multimorbidity (≥3), parental hip fracture, and smoking were the independent predictors of being early screened.

CONCLUSION

We found two-thirds of women and men unscreened for osteoporosis despite being indicated by age. Early and late screening were both prevalent. Self-reported osteoporosis diagnosis was mostly inconsistent with BMD testing in our sample.

Adherence to and persistence with zoledronic acid treatment for osteoporosis-reasons for early discontinuation

This retrospective study reports 81% long-term (> 3 years) adherence to and 77% persistence with zoledronic acid (ZA) treatment in osteoporosis patients, with ZA being costfree for patients. Eight percent of patients discontinued treatment because of adverse events (AEs), with a tendency of higher discontinuation rate in older patients.

PURPOSE

This study investigated (1) long-term adherence to and persistence with ZA treatment in a real-world setting, (2) extent to which an adverse reaction to ZA impacted on adherence and persistence, and (3) whether there were sex or age differences in patients that had early treatment termination (ETT) due to AEs and those who adhered to the regimen.

METHODS

All patients treated with ZA at the Endocrinology Department at Linköping University Hospital, Linköping, Sweden between 2012 and 2017 were included. ETT was defined as < 3 ZA infusions, which was confirmed from patients' medical records.

RESULTS

A total of 414 patients were treated with ZA, with 81% receiving > 3 ZA infusions. Three-year persistence was 77% for a treatment window of 365 days ± 90 days (75% with 365 days ± 60 days window). The most common reason for ETT was AEs (8%), followed by medical conditions (5%), biological aging (3%), and other (e.g., lost to follow-up [3%]). Most patients who discontinued treatment because of AEs reported symptoms of acute-phase reaction, and tended to be older than those who adhered to treatment (74 ± 9 vs 70 ± 13 years, p = 0.064). There was no difference in sex ratio between the 2 groups (85% vs 90% females, p = 0.367).

CONCLUSION

Rates of long-term adherence to and persistence with ZA treatment were high with a pre-scheduled 3-year treatment regimen in the tax-financed Swedish healthcare system. AEs-mainly acute-phase reaction-were the most common reason for ETT, occurring in nearly 1 out of 10 patients.

A systematic review of factors affecting medication adherence among patients with osteoporosis

The aim of this review was to identify factors that influence patients' adherence to anti-osteoporotic therapy. Factors identified that were associated with poorer medication adherence included polypharmacy, older age, and misconceptions about osteoporosis. Physicians need to be aware of these factors so as to optimize therapeutic outcomes for patients.

INTRODUCTION

To identify factors that influence patients' adherence to anti-osteoporotic therapy.

METHODS

A systematic review of literature was performed for articles published up till January 2018 using PubMed®, PsychINFO®, Embase®, and CINAHL®. Peer-reviewed articles which examined factors associated with anti-osteoporotic medication adherence were included. Classes of anti-osteoporotic therapy included bisphosphonates, parathyroid hormone-related analogue, denosumab, selective estrogen receptor modulators, estrogen/progestin therapy, calcitonin, and strontium ranelate. Meta-analyses, case reports/series, and other systematic reviews were excluded. Identified factors were classified using the World Health Organization's five dimensions of medication adherence (condition, patient, therapy, health-system, and socio-economic domains).

RESULTS

Of 2404 articles reviewed, 124 relevant articles were identified. The prevalence of medication adherence ranged from 12.9 to 95.4%. Twenty-four factors with 139 sub-factors were identified. Bisphosphonates were the most well-studied class of medication (n = 59, 48%). Condition-related factors that were associated with poorer medication adherence included polypharmacy, and history of falls was associated with higher medication adherence. Patient-related factors which were associated with poorer medication adherence included older age and misconceptions about osteoporosis while therapy-related factors included higher dosing frequency and medication side effects. Health system-based factors associated with poorer medication adherence included care under different medical specialties and lack of patient education. Socio-economic-related factors associated with poorer medication adherence included current smoker and lack of medical insurance coverage.

CONCLUSION

This review identified factors associated with poor medication adherence among osteoporotic patients. To optimize therapeutic outcomes for patients, clinicians need to be aware of the complexity of factors affecting medication adherence.