A portfolio of biologic self-injection devices in rheumatology: how patient involvement in device design can improve treatment experience

Acceptability of CYLTEZO pen among biologics autoinjector patients, autoinjector Naïve patients, and healthcare professionals

BACKGROUND

Cyltezo® (Adalimumab-adbm) is an FDA-approved interchangeable biosimilar for Humira® (adalimumab reference product [RP]) that helps treat chronic inflammatory conditions. Adalimumab-adbm is administered via an autoinjector, the adalimumab-adbm pen. This study assessed user opinions related to usability, perceptions, convenience, safety features, and acceptability of the adalimumab-adbm pen.

METHODS

98 Humira Pen users, 100 biologics pen naïve patients, and 99 health care professionals simulated use of the adalimumab-adbm pen on injection pads. Opinions were captured with a validated questionnaire using Likert-type scales during moderated interviews. Binomial tests were conducted for top-two ratings percentages.

RESULTS

Nearly 90% of participants found the adalimumab-adbm pen 'easy' or 'very easy' to use, handle, and learn how to use. Almost 90% of volunteers thought the pen was 'very' or 'extremely' solid and convenient to use at home. Around 80% found the pen to be 'very' or 'extremely' comfortable. Over 90% of respondents said they would be 'satisfied' or 'very satisfied' with the safety features and the device itself. Nearly 90% of respondents indicated being 'very' or 'extremely' open to adopting the adalimumab-adbm pen.

CONCLUSIONS

The adalimumab-adbm pen provided users with a positive experience with features that benefit perceptions of usability, handling, safety, convenience, and acceptability.

Rose Bengal Labeled Bovine Serum Albumin for Protein Transport Imaging in Subcutaneous Tissues Using Computed Tomography and Fluorescence Microscopy

Subcutaneous (SC) injection of protein-based therapeutics is a convenient and clinically established drug delivery method. However, progress is needed to increase the bioavailability. Transport of low molecular weight (Mw) biotherapeutics such as insulin and small molecule contrast agents such as lipiodol has been studied using X-ray computed tomography (CT). This analysis, however, does not translate to the investigation of higher Mw therapeutics, such as monoclonal antibodies (mAbs), due to differences in molecular and formulation properties. In this study, an iodinated fluorescein analog rose bengal (RB) was used as a radiopaque and fluorescent label to track the distribution of bovine serum albumin (BSA) compared against unconjugated RB and sodium iodide (NaI) via CT and confocal microscopy following injection into ex vivo porcine SC tissue. Importantly, the high concentration BSA-RB exhibited viscosities more like that of viscous biologics than the small molecule contrast agents, suggesting that the labeled protein may serve as a more suitable formulation for the investigation of injection plumes. Three-dimensional (3D) renderings of the injection plumes showed that the BSA-RB distribution was markedly different from unconjugated RB and NaI, indicating the need for direct visualization of large protein therapeutics using conjugated tags rather than using small molecule tracers. Whereas this proof-of-concept study shows the novel use of RB as a label for tracking BSA distribution, our experimental approach may be applied to high Mw biologics, including mAbs. These studies could provide crucial information about diffusion in SC tissue and the influence of injection parameters on distribution, transport, and downstream bioavailability.

Retention rate of a novel autoinjector e-Device introduced to patients with chronic arthritis treated with certolizumab pegol in clinical practice: an observational implementation study

OBJECTIVES

The objectives were to explore the clinical retention rate of an e-Device aimed at empowering chronic arthritis patients using certolizumab pegol (CZP) and to analyse beliefs about medication in the Danish population.

METHOD

Patients treated with CZP were recruited from the Netherlands, Denmark, and Sweden through rheumatology clinics at initiation of, or switching to, the e-Device. Patients were adults (aged 18-85 years) diagnosed with rheumatoid arthritis, axial spondyloarthritis, or psoriatic arthritis. Patients administered three consecutive self-injections at home. Descriptive statistics regarding baseline characteristics, retention rates, and reasons for withdrawal were assessed, along with the Beliefs about Medicines Questionnaire.

RESULTS

In total, 59 patients participated (Netherlands 25, Denmark 15, Sweden 19). Most subjects (71%) were women, with a mean ± sd age of 55 ± 16.2 years and mean disease duration 12 ± 8.8 years. Six patients (10%) started CZP de novo and the remaining patients switched device. The overall retention rate was 42% after 52 weeks, declining to 38% after 104 weeks. A sharp decline, 34%, was seen at week 8. Between weeks 32 and 112, only four patients (6.8%) withdrew from the study. The primary reason for withdrawal was the patient's request. Stratification by country showed significant differences for some outcomes.

CONCLUSION

An initial large dropout was evident within the first 8 weeks, with almost no dropouts thereafter. The reasons for withdrawal were primarily patient requests. Thus, the injection experience must be tailored carefully when selecting patients for new autoinjector e-Devices to enhance retention rates and patient satisfaction.

Postmarketing Reports of Incomplete Dosing-Related Complications with Self-Injected PCSK9 Inhibitors: A Descriptive Study and Disproportionality Analysis

BACKGROUND

Evolocumab and alirocumab are self-injected proprotein convertase subtilisin kexin type 9 (PCSK9) inhibitors indicated for low-density lipoprotein cholesterol reduction. Complications in the use or functionality of self-injection devices may precipitate incomplete dosing.

OBJECTIVE

This study sought to characterize postmarketing dosing failure reports involving self-injected PCSK9 inhibitors.

METHODS

US Food and Drug Administration Adverse Event Reporting System (FAERS) [2016-second quarter of 2023] data were utilized for a disproportionality analysis. Eight self-injected comparator medications served as referents. Medical Dictionary for Regulatory Activities preferred terms indicating explicit or probable failure to administer a complete dose classified cases. Proportional reporting ratios (PRRs) > 2.0 and lower 95% confidence intervals (CIs) > 1.0 indicated disproportionality signals. US FDA Manufacturer and User Facility Device Experience (MAUDE) [2013-2023] data underwent a narrative review.

RESULTS

During the study period, 194,781 (evolocumab, n = 152,831; alirocumab, n = 41,950) drug-event pairs and 43,725 (evolocumab, n = 38,489; alirocumab, n = 5236) cases reported to FAERS identified PCSK9 inhibitors. MAUDE contained six evolocumab reports, half describing dose omission, and no alirocumab reports. A potential dosing failure signal was detected for evolocumab (PRR 2.01; 95% CI 1.98-2.03), but not alirocumab (PRR 0.99; 95% CI 0.97-1.02), relative to pooled comparator reports. Across three case term subcategories, incomplete dosing disproportionality signals were further identified for evolocumab patient usage complication terms (PRR 3.44; 95% CI 3.38-3.50) and alirocumab device malfunction terms (PRR 2.09; 95% CI 1.98-2.22).

CONCLUSIONS

Proprotein convertase subtilisin kexin type 9 inhibitor incomplete dosing-related complications are frequently reported in the postmarketing setting. Systematic efforts to understand the incidence and mechanisms of dosing failure and associated patient burdens are needed.

Factors influencing the acceptability of different devices for subcutaneous drug delivery: a cross-sectional observational study from the patient's point of view

BACKGROUND

In recent years, an increasing number of patient-reported outcome assessment tools (PROs) have been developed specifically to ascertain patients' perceptions of different drug treatments. Among them, the injection process has been analysed, especially in patients chronically treated with chronic biological therapies. One of the main advantages of most current biological therapies is the possibility to self-administer medication at home through the use of a variety of devices, including prefilled syringes (PFS) and prefilled pens (PFP).

OBJECTIVES

The aim of this study was to conduct qualitative research to assess the degree of preference between the different pharmaceutical forms PFS and PFP.

METHODS

We performed a cross-sectional observational study in patients on biological drug therapy through the compilation of a web-based questionnaire at the time of routine delivery of biological therapy. Questions regarding primary diagnosis, adherence to therapy, the preferred pharmaceutical form and the main reason for preference among five possibilities already reported in the scientific literature were included.

RESULTS

During the study period, data were collected from 111 patients and 68 (58%) indicated PFP as their preference. From the analysis of reasons that led a patient to choose one device over another, PFSs are chosen mainly out of habit (n=13 (28.3%) PFS vs n=2 (3.1%) PFP) while PFPs are chosen to avoid needle vision (n=15 (23.1%) PFP vs n=1 (2.2%) PFS). Both differences were found to be statistically significant (p<0.001).

CONCLUSION

As biological subcutaneous drugs are increasingly prescribed for a wide variety of long-term therapies, further research focused on identifying patient factors which may enhance adherence to treatment will become even more valuable.

Patient Experience with the SensoReady® Autoinjector Pen versus a Comparator Device: Results from a Canadian Patient Survey in Rheumatoid Arthritis and Crohn´s Disease

Purpose

Medication delivery device design impacts treatment satisfaction, adherence, and compliance in patients receiving biologics. This survey assessed autoinjector attributes that are important to patients, and assessed patient perceptions and preferences between an adalimumab biosimilar autoinjector (Hyrimoz® SensoReady® Pen [SDZ-ADL pen]) and the reference adalimumab autoinjector (Humira® Pen [ref-ADL pen]) in patients with rheumatoid arthritis (RA) or Crohn's disease (CD) in Canada.

Patients and Methods

In this survey, adult patients were recruited for web-assisted telephone interviews. Patients had ≥ 3 months' experience with the ref-ADL pen and 1-12 months' experience with the SDZ-ADL pen.

Results

The survey included 120 patients with RA (n = 32) or CD (n = 88). Mean experience with the ref-ADL pen was 7 years for RA or 5 years for CD vs 9 months with the SDZ-ADL pen. The most important autoinjector attributes were the ability to use the pen independently and the ease and simplicity of self-injection. When comparing the two autoinjectors, patients significantly preferred the SDZ-ADL pen over the ref-ADL pen for nearly every attribute evaluated, with the greatest differences reported for visual and audible feedback mechanisms, ease of self-injection, and ability to use the device independently. Overall, 82% of patients preferred the SDZ-ADL pen over the ref-ADL pen, with buttonless activation and less injection pain being the main drivers for this preference.

Conclusion

Patients with RA or CD indicated a preference for the SDZ-ADL pen over the ref-ADL pen, independent of the duration of use of the pen. The preference for a biosimilar device within 1 year of switching provides reassurance of rapid patient acceptance of biosimilars and may simplify the switching process. These results confirm the importance of ensuring autoinjector design supports independent self-administration of medication and align with previous data showing high patient satisfaction with the SDZ-ADL pen.

Towards more tolerable subcutaneous administration: Review of contributing factors for improving combination product design

Subcutaneous (SC) injections can be associated with local pain and discomfort that is subjective and may affect treatment adherence and overall patient experience. With innovations increasingly focused on finding ways to deliver higher doses and volumes (≥2 mL), there is a need to better understand the multiple intertwined factors that influence pain upon SC injection. As a priority for the SC Drug Development & Delivery Consortium, this manuscript provides a comprehensive review of known attributes from published literature that contribute to pain/discomfort upon SC injection from three perspectives: (1) device and delivery factors that cause physical pain, (2) formulation factors that trigger pain responses, and (3) human factors impacting pain perception. Leveraging the Consortium's collective expertise, we provide an assessment of the comparative and interdependent factors likely to impact SC injection pain. In addition, we offer expert insights and future perspectives to fill identified gaps in knowledge to help advance the development of patient-centric and well tolerated high-dose/high-volume SC drug delivery solutions.

Pharmaceutical and biotech industry perspectives on optimizing patient experience and treatment adherence through subcutaneous drug delivery design

Subcutaneous (SC) drug delivery can be a safe, effective alternative to the traditional intravenous route of administration, potentially offering notable advantages for both patients and healthcare providers. The SC Drug Development & Delivery Consortium convened in 2018 to raise awareness of industry challenges to advance the development of patient-centric SC drug delivery strategies. The SC Consortium identified better understanding of patient preferences and perspectives as necessary to optimize SC product design attributes and help guide design decisions during SC product development. This manuscript provides a comprehensive overview of patient-centric factors for consideration in the SC drug delivery design and development process with the aim of establishing a foundation of existing knowledge for patient experiences related to SC drug delivery. This overview is informed by the outcomes of a multi-step survey of Consortium members and key pharmaceutical stakeholders. Framed in the context of the patient's treatment journey, the survey findings offer future perspectives to fill data gaps to advance patient-centric SC drug delivery.

Evaluating unmet needs in large-volume subcutaneous drug delivery: U.S. payer perspectives on a novel, large-volume on-body delivery system

OBJECTIVE

Existing healthcare systems face finite resource allocation and budgetary constraints, resulting in a substantial need for innovative solutions to enhance service delivery at reduced costs. A novel, user-friendly on-body delivery system (OBDS) was developed which enables administration of large-volume subcutaneous (SC) drugs in both clinical and home-based settings (at-home healthcare professional [HCP] administration or at-home self-administration).

METHODS

This research sought to evaluate the potential economic impact of at-home self- or HCP- administration with the OBDS through a comprehensive review of published literature and semi-structured interviews with 17 US payers representing approximately 227 million covered lives.

RESULTS

Published literature on OBDS remains limited, but available research highlights the cost-savings of SC administration due to reduced healthcare resource utilization, particularly with home-based care, and improved patient compliance. In interviews, payers identified several attributes that would help address unmet clinical and economic needs. Clinically, the hidden needle and ease-of-use compared to SC syringe pumps was deemed valuable to improve patient compliance and, as OBDS required minimal training, reduce the risk of administration errors. The flexibility to administer drugs at home (self-administration or HCP-administration) or in-clinic was identified as the most impactful attribute on coverage decision making as it has the greatest potential to reduce costs associated with HCP administration for several therapeutic areas.

CONCLUSIONS

Given the ability to help address critical unmet needs for the patient and healthcare system, a large proportion of the payers stated that the novel OBDS would warrant a price premium versus the cost of the standalone SC vial and certainly over the IV counterpart. Future research to quantify the value that OBDS efficiencies could bring to healthcare delivery are warranted.

Relevance of Adalimumab Product Attributes to Patient Experience in the Biosimilar Era: A Narrative Review

Adalimumab (ADL, Humira®, reference product), an anti-TNF-α biologic, has transformed the treatment of chronic, immune-mediated inflammatory diseases. However, the high cost of ADL therapy has driven the development of more affordable ADL biosimilars, agents with no clinically meaningful differences from the reference product. This review summarizes the product attributes of reference ADL and the nine ADL biosimilars approved and available in the USA in relation to patient experience of injection-site pain (ISP). Product formulation, delivery volume and device features (e.g., type and needle gauge size) influence patient experience of ISP with potential clinical consequences. Citrate-free formulations generally cause less ISP; injection volumes of > 1.5 ml may be associated with increased ISP. Reference ADL and all ADL biosimilars offer a citrate-free formulation, and reference ADL and four ADL biosimilars offer a high-concentration solution that allows a smaller injection volume. All available ADL products are injected subcutaneously using either a pre-filled pen (PFP) or pre-filled syringe (PFS). Patients prefer the PFP, but the PFS permits better control over the speed and duration of injection. Smaller (29-gauge) needle outer diameter is associated with less ISP; reference ADL and seven ADL biosimilars offer a device with a 29-gauge needle. In the USA, an approved biosimilar can be designated "interchangeable," allowing pharmacy-level substitution, where state law permits. In the USA, two ADL biosimilars have received interchangeability designation; others are seeking interchangeability designation from the Food and Drug Administration (n = 2), are being evaluated in clinical studies to support interchangeability (n = 2), or do not have/are not seeking interchangeability designation (n = 3). Product-related attributes influence patient experience of ISP caused by subcutaneous ADL injection. Reference ADL and ADL biosimilar products differ in their attributes, so discussion with patients about treatment options is essential to optimize adherence and outcomes.

Persistence on subcutaneous tocilizumab as monotherapy or in combination with synthetic disease-modifying anti-rheumatic drugs in rheumatoid arthritis patients in Greece (EMBRACE study): a multicenter, post-marketing, non-interventional, observational trial

INTRODUCTION

Rheumatoid arthritis (RA) is a systemic, inflammatory disease affecting multiple organs and causing physical disability over time.

OBJECTIVE

The primary objective was to evaluate treatment persistence to subcutaneous tocilizumab (TCZ-SC). Additionally, treatment effects on persistence and their associations with clinical and patient-reported outcomes were assessed.

METHOD

We performed a multicenter, non-interventional, 52-week observational study on 222 patients with moderate or severe RA. Clinical outcomes were evaluated by using disease activity score for 28 joints (DAS28) and European League Against Rheumatism (EULAR) response, and patients' perceptions were evaluated by using Health Assessment Questionnaire (HAQ), Visual Analog Scale (VAS) for pain, and patient global assessment (PtGA) of disease activity. Safety was assessed throughout the study.

RESULTS

The mean age of the overall cohort was 62.2 ± 12.3 years, and 83.8% were females. Persistence to TCZ-SC was 89.6% at week 24 and 85.1% at week 52 in the overall cohort with slightly increased persistence in the combination group. At week 52, changes from the baseline were - 2.68 in DAS28, - 0.76 in HAQ, - 43.21 in VAS pain, and - 41.66 in PtGA (p < 0.0001 for all). Moderate and good EULAR response was achieved in 83.2% of patients. Non-serious and serious adverse events occurred in 18.5% and 3.2% of the participants, respectively.

CONCLUSIONS

The current study confirms the favorable safety and effectiveness of TCZ-SC as well as its acceptability by RA patients in Greece, with sustained high persistence rates up to 52 weeks. TCZ-SC offers a sustainable treatment response in RA. Key Points • Based upon clinical and patient-reported outcomes, TCZ-SC is a highly effective and safe treatment modality in patients with moderate-to-severe RA. • Persistence to TCZ-SC was high throughout the study, both as monotherapy and in combination with csDMARDs. • TCZ-SC is effective both as monotherapy and when used in combination with other csDMARDs regardless of the line of treatment.

Individual and Community-Level Characteristics and Adherence to Specialty Medications

Background: Understanding risk factors for nonadherence can help specialty pharmacies optimize resources to prevent nonadherence and inform risk-stratification processes. Objective: To determine which individual and community-level characteristics are associated with nonadherence to specialty medications. Methods: We analyzed a cohort of patients enrolled in a prospective randomized controlled trial having filled a specialty medication at least 4 times in the previous 12 months with a proportion of days (PDC) covered < 0.90. We collected patient age, gender, race, medication administration type, therapy start date, home address, insurance type, and online patient portal status from the electronic health record. An ordinal logistic regression model was used to assess the association of nonadherence with individual and community-level patient characteristics. Results: Most patients were female (68%), white (82%), and held commercial insurance (58%) with a median age of 53 (interquartile range [IQR] 40, 64) years. Patients were mostly from the adult rheumatology (35%), multiple sclerosis (20%) and lipid (17%) clinics. Given a 10-year increase in age, patients had lower odds of having lower PDC (odds ratio [OR] = 0.82, 95% confidence interval [CI] = 0.71-0.94, P = 0.005). Patients on therapy greater than or equal to 1 year had half the odds of having lower PDC relative to patients on therapy less than 1 year (OR = 0.52, CI = 0.35 - 0.75, P < 0.001). No statistically significant associations were found between PDC and gender, race, insurance type, route of administration, clinic type, patient portal status, median income, percent receiving government assistance, or percent with no health insurance. Conclusion: Patients with younger age and shorter duration on treatment may be at-risk for lower adherence. Specialty pharmacies may benefit from targeting adherence interventions to these groups.

International Survey to Evaluate Current Options for Subcutaneous Injection of Methotrexate (MTX) and a New Button-Free MTX Autoinjector

Purpose

Prefilled syringes (PFS) and various types of pens are available for subcutaneous injection of methotrexate (MTX) in patients with rheumatoid arthritis or moderate to severe psoriasis. A new MTX pen with modernized button-free autoinjection technology was developed as a successor to a button-activated pen (metoject®/metex® PEN). To assess the needs of users and the relevance of features of the new MTX autoinjector an international online survey was performed.

Methods

A structured questionnaire was distributed to physicians, nurses and patients in Germany, France, and the United Kingdom. Participants received illustrations and information about features of the new MTX autoinjector.

Results

In total, 189 rheumatologists, 111 dermatologists, 90 nurses, and 180 patients answered the questions. Specific reasons for a preference for the use of MTX pens over PFS could predominantly be assigned to the categories "dosing/administration" and "ease of use". The first impression of the new MTX autoinjector was positive in 82% of physicians, 87% of nurses, and 76% of patients, respectively. The four most important features of the new MTX autoinjector were 2-step autoinjector mechanism (receiving a mean 14.1 to 18.1 chips of a total of 100 chips), small injection volume (9.7 to 11.7 chips), 10 different doses for dose flexibility (8.0 to 13.2 chips), and short injection time below 5 seconds (8.5 to 11.1 chips).

Conclusion

Arguments for the use of MTX pens as opposed to PFS predominantly refer to dosing/administration and ease of use. The new button-free MTX autoinjector combines a number of advantageous features identified by the international survey.

Reversible protein complexes as a promising avenue for the development of high concentration formulations of biologics

High concentration formulations have become an important pre-requisite in the development of biological drugs, particularly in the case of subcutaneous administration where limited injection volume negatively affects the administered dose. In this study, we propose to develop high concentration formulations of biologics using a reversible protein-polyelectrolyte complex (RPC) approach. First, the versatility of RPC was assessed using different complexing agents and formats of therapeutic proteins, to define the optimal conditions for complexation and dissociation of the complex. The stability of the protein was investigated before and after complexation, as well as upon a 4-week storage period at various temperatures. Subsequently, two approaches were selected to develop high concentration RPC formulations: first, using up-concentrated RPC suspensions in aqueous buffers, and second, by generating spray-dried RPC and further resuspension in non-aqueous solvents. Results showed that the RPC concept is applicable to a wide range of therapeutic protein formats and the complexation-dissociation process did not affect the stability of the proteins. High concentration formulations up to 200 mg/mL could be achieved by up-concentrating RPC suspensions in aqueous buffers and RPC suspensions in non-aqueous solvents were concentrated up to 250 mg/mL. Although optimization is needed, our data suggests that RPC may be a promising avenue to achieve high concentration formulations of biologics for subcutaneous administration.

Healthcare Provider Administration of Biologics for Patients with Plaque Psoriasis: Literature Review and Clinical Considerations

Objective

Plaque psoriasis is a chronic, inflammatory, immune-mediated skin disease. Biologic therapies markedly improve skin disease severity and health-related quality of life for patients with moderate-to-severe plaque psoriasis. All but two of the biologics approved in the United States for moderate-to-severe plaque psoriasis may be self-administered by adult patients via subcutaneous injection. This review discusses rationales for choosing healthcare provider (HCP) administration over self-administration of biologics for patients with plaque psoriasis, including treatment adherence, patient preference, and practical considerations.

Methods

PubMed was searched for "psoriasisAND biologic AND administration AND (office OR provider OR profession)." The most relevant results and additional papers identified from the references were included in the review.

Results

Although many patients prefer self-administration, others may benefit from HCP administration. Key considerations in the choice between HCP vs. self-administration of biologics for plaque psoriasis treatment include adherence, patient preferences, and practical concerns. Patient characteristics that may make HCP administration of biologic therapies for treatment of plaque psoriasis preferable to at-home self-administration are discussed.

Limitations

There are few published studies specific to HCP administration of biologics for treatment of psoriasis.

Conclusion

Administration of biologics by an HCP may improve treatment adherence and clinical outcomes compared to self-administration in selected patients with plaque psoriasis.

Identifying a predictive relationship between maximal flow rate and viscosity for subcutaneous administration of macromolecules with recombinant human hyaluronidase PH20 in a miniature pig model

Subcutaneous (SC) infusion of large volumes at rapid flow rates has historically been limited by the glycosaminoglycan hyaluronan (HA), which forms a barrier to bulk fluid flow in the SC space. Recombinant human hyaluronidase PH20 (rHuPH20) depolymerizes HA, temporarily eliminating this barrier to rapid SC delivery of large volume co-administered therapeutics. Using a miniature pig model, in-line pressure and applied force to the delivery hardware were measured when subcutaneously infusing a representative macromolecule (human polyclonal immunoglobulin [Ig]), at varying concentrations and viscosities (20-200 mg/mL), co-formulated with and without rHuPH20 (2000 U/mL and 5000 U/mL). Maximal flow rate (Qmax) was calculated as the flow rate producing a statistically significant difference in mean applied force between injections administered with or without rHuPH20. There was a significant reduction in mean applied force required for SC delivery of 100 mg/mL Ig solution with 5000 U/mL rHuPH20 versus Ig solution alone. Similar significant reductions in mean applied force were observed for most Ig solution concentrations, ranging from 25-200 mg/mL when administered with or without 2000 U/mL rHuPH20. Qmax was inversely proportional to Ig solution viscosity and Qmax for solutions co-formulated with 5000 U/mL rHuPH20 was approximately double that of 2000 U/mL rHuPH20 solutions. Mathematical simulation of a hypothetical 800 mg Ig dose co-formulated with rHuPH20 showed that delivery times <30 s could be achieved across a broad range of concentrations. Addition of rHuPH20 can help overcome volume and time constraints associated with SC administration across a range of concentrations in a dose-dependent manner.

Barriers and Enablers in the Use of Parenteral Methotrexate in Rheumatoid Arthritis Patients: A Scoping Review

OBJECTIVE

Methotrexate (MTX) is effective in controlling disease activity in rheumatoid arthritis (RA). Parenteral MTX may have benefits over oral MTX, but it is rarely used in practice. To better understand this low usage rate, it is necessary to explore the barriers and enablers of therapy from the perspective of RA patients. The objectives of this scoping review were to describe RA patients' perspectives on the barriers and enablers in the use of parenteral MTX and to identify the research gaps in this field.

METHODS

The search was performed in Medline, Embase, Scopus, and Cochrane Library from inception to May 2021. Data synthesis was conducted using the Theoretical Framework of Acceptability. This scoping review included any type of study that explored the use of parenteral MTX by adult RA patients from the patients' perspective, written in English.

RESULTS

Fifteen studies were included; findings related to the constructs "affective attitude," "burden," "intervention coherence," and "self-efficacy" were explored the most, while some were rarely ("opportunity cost" and "perceived effectiveness") or not ("ethicality") reported. RA patients were generally satisfied with MTX injections ("affective attitude"). From the burden construct, the requirement for dexterity for administering MTX by injection was considered a barrier, whereas the lack of significant pain from MTX injection was considered an enabler.

CONCLUSION

The findings suggested that patients generally preferred parenteral MTX formulations with attributes that facilitate self-administration. However, much of the identified research focused on prefilled pen devices, and significant gaps were identified, such as a lack of qualitative research.

The Adherence and Outcomes Benefits of Using a Connected, Reusable Auto-Injector for Self-Injecting Biologics: A Narrative Review

Many biologics are now self-administered by patients at home. A variety of self-injection devices are available, including vials and syringes, prefilled syringes, and spring-driven prefilled pens or auto-injectors. Each has advantages and drawbacks, and different devices suit different patients. For example, some patients have difficulty achieving consistent and successful self-injection due to poor manual dexterity, or experience anxiety at the prospect of self-injection or injection-site pain. These factors can reduce patients' medication adherence and overall experience. Furthermore, while self-injection brings patients many benefits, the proliferation of single-use injection devices has implications for environmental sustainability, including the reliance on single-use plastics, repeated freighting requirements, and need for incineration as hazardous waste. Recently developed, innovative electromechanical auto-injector devices offer technological enhancements over existing devices to overcome some of these issues. Features include customisable injection speeds or durations, consistent rate of injection, electronic injection logs and reminders, and step-by-step, real-time instructions. Indeed, a growing body of evidence points to higher adherence rates among patients using electromechanical devices compared with other devices. Further, with time, the reusability of electromechanical devices may prove to lighten the environmental impact compared with disposable devices, especially as research continues to optimise their sustainability, driven by increased consumer demands for environmental responsibility. This narrative review discusses the differences between prefilled syringes, spring-driven prefilled pens, and electromechanical devices. It also explores how these features may help reduce injection-associated pain and anxiety, improve patient experience, connectivity and adherence, and drive sustainability of biologic drugs in future.

The Experience of Home Parenteral Therapy: A Thematic Analysis of Patient Interviews

BACKGROUND

A limited number of studies have explored patients' experience with home parenteral (injectable) therapy (HPT) in the UK.

AIM

To explore the immediate-, short-, and long-term experience of patients with self-management of any home parenteral therapy with the intention for developing a guideline for service development in the United Kingdom.

METHODS AND DESIGN

An interview-based study of patients receiving HPT. Invitations were posted to all patients on the hospital HPT register. The sessions were conducted by telephone for all consenting patients. The interviews were recorded, transcribed, and analysed thematically. Participants completed the 'Health Education Impact Questionnaire' (heiQ) before and after the education session.

RESULTS

Of the 640 patients invited to participate in the study, 45 (7%) patients completed the interviews and the education session. An interview analysis revealed that the patients' experiences of HPT were generally positive, but the levels of training and support received showed wide individual variations. The patients had experienced periods of doubt and uncertainty, where they would have appreciated quick access to professional advice to alleviate their concerns. There was a reliable positive change (10.5-18.4%) from before and after the education sessions in six out of the eight domains on the heiQ questionnaire (health-directed behaviour, self-monitoring and insight, constructive attitudes and approaches, skill and technique acquisition, social integration and support, and emotional distress) and moderate change in two domains (5.3% in positive and negative engagement in life, and 2.6% in health services navigation).

CONCLUSION

Self-administered parenteral therapy at home is a valuable option, but training and preparation standards should be optimised across hospitals and the wider NHS.

Healthcare Professional (HCP) and Patient Usability Evaluation and Preferences of Two Auto-injector Devices for Self-Injection of Biosimilars, SB4 and SB5: A Literature Review

BACKGROUND

Numerous biologic drugs, including etanercept and adalimumab, are administered subcutaneously. This study reviewed the evidence on the usability and preference of self-injection devices of SB4 and SB5 compared with the reference product injectors.

METHODS

A systematic search was conducted in PubMed using the search string "(Imraldi OR Hadlima OR SB5 OR Benepali OR Brenzys OR SB4) AND (preference) AND (device)" covering the period from 28 January 2016 (first introduction of SB4) to 31 May 2022. Only articles and abstracts on usability or preference-rating of SB4 and SB5 autoinjectors (AI) written in English were selected. Additional papers identified via manual search supplemented the retrieved papers.

RESULTS

A total of nine articles and one conference poster were selected (seven surveys, one observational study, and two phase II studies). Overall, participants of the studies included nurses and rheumatologists, as well as patients who were from three medical specialties where these medicines are most commonly used (rheumatology, gastroenterology, and dermatology). The majority of patients and healthcare professionals rated ease of use and ease of grip as the most important device attributes. SB4/Pen and SB5/Pen were mostly preferred over their prefilled syringes (PFS), Enbrel/Pen, and Humira/Pen.

CONCLUSION

The analyzed data on usability and device preference indicate that SB4/Pen and SB5/Pen were preferred over the other reference product autoinjectors, thanks to their button-free design, auditory and visual injection feedback, and overall ease of use. Therefore, they were preferred over the other reference product autoinjectors. Because user-friendly devices can improve treatment adherence, pharmaceutical companies should consider patient convenience when developing medical devices.

Drug delivery breakthrough technologies - A perspective on clinical and societal impact

The way a drug molecule is administered has always had a profound impact on people requiring medical interventions - from vaccine development to cancer therapeutics. In the Controlled Release Society Fall Symposium 2022, a trans-institutional group of scientists from industry, academia, and non-governmental organizations discussed what a breakthrough in the field of drug delivery constitutes. On the basis of these discussions, we classified drug delivery breakthrough technologies into three categories. In category 1, drug delivery systems enable treatment for new molecular entities per se, for instance by overcoming biological barriers. In category 2, drug delivery systems optimize efficacy and/or safety of an existing drug, for instance by directing distribution to their target tissue, by replacing toxic excipients, or by changing the dosing reqimen. In category 3, drug delivery systems improve global access by fostering use in low-resource settings, for instance by facilitating drug administration outside of a controlled health care institutional setting. We recognize that certain breakthroughs can be classified in more than one category. It was concluded that in order to create a true breakthrough technology, multidisciplinary collaboration is mandated to move from pure technical inventions to true innovations addressing key current and emerging unmet health care needs.

Demographic, Physical, and Psychological Determinants of Patient Experience with Subcutaneous Self-Injection in Patients with Rheumatoid Arthritis: Structural Equation Modeling Approach

Purpose

To achieve a better patient experience with self-injection, an assessment of potential demographic, physical, and psychological barriers is necessary. The aim of this study was to examine the demographic, physical, and psychological characteristics associated with the experiences of self-injection in patients with rheumatoid arthritis (RA).

Patients and Methods

In this study, overall patient experience with subcutaneous self-injection was assessed using the Self-Injection Assessment Questionnaire. Upper limb function was assessed using the three domains of the Health Assessment Questionnaire associated with upper extremity disability (dressing and grooming, eating, and grip). Structural equation modeling was used to estimate the association between the demographic and clinical characteristics of patients with RA and their experiences with self-injection in the theoretical model.

Results

Data from 83 patients with RA were analyzed. Compared with younger patients, elderly patients were more likely to experience lower self-confidence, self-image, and ease of use. Female patients had lower ease of use than male patients. In terms of upper limb function, patients with more difficulty in performing activities of daily living were more likely to have a lower self-image. Self-injection perceptions before learning the method of injection, such as fear of needles and anxiety about self-injection, were associated with post-injection feelings, injection site reactions, self-confidence, and ease of use.

Conclusion

To optimize patients' experiences with self-injection, healthcare workers should assess each patient's age, sex, upper limb function, and pre-self-injection perceptions as demographic, physical, and psychological barriers.

Assessment of real-life patient handling experience of AVT02 administered subcutaneously via autoinjector in patients with moderate to severe active rheumatoid arthritis: an open-label, single-arm clinical trial, then an extension phase of AVT02 administered with a prefilled syringe

BACKGROUND

This study investigated the ability of patients, naïve to adalimumab treatment and self-injection with an autoinjector (AI), to successfully self-administer AVT02, an adalimumab biosimilar, using a custom, ergonomic AI (Alvotech hf., Reykjavik, Iceland).

RESEARCH DESIGN AND METHODS

This was a single-arm, open-label study, consisting of an 8-week active period and 48-week extension phase. Patients with moderate to severe rheumatoid arthritis (RA) self-administered 40 mg AVT02 subcutaneously via AI in the active period, followed by prefilled syringe in the extension phase. The primary endpoint was the percentage of successful self-injections up to Week 8. Usability and robustness of the AI were evaluated in the active period; safety, efficacy, pharmacokinetic and immunogenicity data were assessed throughout the study.

RESULTS

The AI success rate was 100%. No handling events were noted up to Week 8. Both Ctrough measurements and immunogenicity profile were in line with expectations from previous studies, with no unexpected safety signals.

CONCLUSIONS

This study demonstrated that AVT02-AI can be successfully and reliably used for repeated self-injections of AVT02 by moderate to severe RA patients, despite no previous experience of adalimumab self-administration. The extension phase provides long-term efficacy and safety data for AVT02 in RA.

STUDY IDENTIFIER

NCT04224194.

Design Development of the SMARTCLIC®/CLICWISE® Injection Device for Self-Administered Subcutaneous Therapies: Findings from Usability and Human Factor Studies

INTRODUCTION

An easy-to-use, multiuse, single-patient, electromechanical autoinjector, the SMARTCLIC®/CLICWISE® injection device, was recently developed to improve the self-administration options available to patients with chronic inflammatory disease treated with biologic agents. An extensive series of studies were conducted to guide the design and development of this device and to ensure its safety and effectiveness.

METHODS

Participants in two user preference studies and three formative human factor (HF) studies evaluated evolving iterations of the autoinjector device, dose dispenser cartridge, graphical user interface, and informational materials; participants in a summative HF test subsequently assessed the final proposed commercially representative product. In the user preference studies, rheumatologists and patients with chronic inflammatory disease, interviewed online and in-person, provided feedback on the design and functionality of four prototypes. In the HF studies, the safety, effectiveness, and usability of adapted prototypes were assessed under simulated-use conditions by patients with chronic inflammatory disease, caregivers, and healthcare professionals (HCPs). The safety and effectiveness of the final refined device and system were confirmed in a summative HF test by patients and HCPs in simulated-use scenarios.

RESULTS

Rheumatologists (n = 204) and patients (n = 39) interviewed in the two user preference studies provided feedback on the device size, feature ergonomics, and usability that guided prototype development in the subsequent formative HF studies. Observations from patients, caregivers, and HCPs (n = 55) participating in the latter studies yielded additional critical design revisions that culminated in development of the final device and system. Of 106 injection simulations conducted in the summative HF test, all resulted in successful medication delivery, and no potential harms were associated with injection-related use events.

CONCLUSION

Findings from this research facilitated development of the SmartClic/ClicWise autoinjector device and demonstrated that it could be used safely and effectively by participants representative of the intended-use population of patients, lay caregivers, and HCPs.

High Usability and Applicability Ratings for the New SmartClic®/ClicWise® Injection Device: Evidence from a Health Care Professional Opinion Study

INTRODUCTION

The SmartClic®/ClicWise® autoinjector is a new reusable, multi-use, single-patient device for the administration of subcutaneously administered biologics in the treatment of chronic conditions, including rheumatoid arthritis. The device will be used in conjunction with a mobile application (app). The aim of this study was to collect feedback on the usability, functionality, and applicability of the device and the companion app from health care professionals (HCPs) who perform injections as part of their role and care for patients with rheumatic conditions.

METHODS

The study was conducted from September to October 2020 in Germany. HCPs participated in a training session for the device and gained experience by performing simulated injections with water. Following the simulations, HCPs answered questions on the ease of use, feature design, effectiveness, and injection speed of the SmartClic/ClicWise device and estimate the patient training time required. They also answered questions on the functionality of the proposed app after attending a storyboard presentation. Responses were recorded as multiple-choice answers, Likert scale ratings (seven-point scale), or open-ended comments. The mean, median, and mode scores were recorded.

RESULTS

Twenty-five HCPs (mean age, 38.2 years; females, n = 22 [88%]; registered nurses, n = 19 [76%]) participated in the study. HCP feedback on questions related to the SmartClic/ClicWise device was positive overall, with mean scores > 4.50 across questions; mean scores < 5.00 were reported on 2/40 questions. Twenty-four of 25 participants (96%) estimated that a training time of ≤ 20 min would suffice for patients learning to use the device. Positive feedback was also reported on questions related to the companion app, with mean scores > 5.70.

CONCLUSIONS

Initial feedback from HCPs on the SmartClic/ClicWise device and proposed app was generally favorable, suggesting they will provide an acceptable alternative for self-administration of biologics for patients with rheumatoid arthritis and other chronic conditions.

Exploring Biologic Treatment Hesitancy Among Black and Indigenous Populations in Canada: a Review

Biologics are becoming an increasingly important part of patient care across Canada. Recent studies from the USA show that Black patients are less likely than White patients to receive biologic treatment for several medical conditions. The relative lack of race-based data in Canada makes it difficult to replicate such studies in Canada. As a result, there is a paucity of literature that explores the association between biologic usage and race in Canada. Our review aims to explore the factors that might be driving racial treatment disparity in Canada that likely parallels the inequalities found in the USA. We provide a summary of the available literature on the factors that contribute to biologic treatment hesitancy among Black and Indigenous populations in Canada. We highlight several solutions that have been proposed in the literature to address biologic treatment hesitancy. Our review found that biologic treatment decision at the individual level can be very complex as patient's decisions are influenced by social inputs from family and trusted community members, biologic-related factors (negative injection experience, fear of needles, formulation, and unfamiliarity), cultural tenets (beliefs, values, perception of illness), and historical and systemic factors (past research injustices, socioeconomic status, patient-physician relationship, clinical trial representation). Some proposed solutions to address biologic treatment hesitancy among Black and Indigenous populations include increasing the number of Black and Indigenous researchers involved in and leading clinical trials, formally training physicians and healthcare workers to deliver culturally competent care, and eliminating financial barriers to accessing medications. Further research is needed to characterize and address race-based new treatment inequalities and hesitancy in Canada.

Self-Administration of Burosumab in Children and Adults with X-Linked Hypophosphataemia in Two Open-Label, Single-Arm Clinical Studies

INTRODUCTION

X-linked hypophosphataemia (XLH) is a rare, genetic renal phosphate-wasting disease, resulting from excess fibroblast growth factor 23 (FGF23) activity, which has a progressive and profound impact on patients throughout life. The monoclonal anti-FGF23 antibody, burosumab, is a subcutaneous injection indicated for the treatment of XLH in children and adults. Originally, burosumab was approved to be administered by a healthcare professional (HCP), but the option of self-administration would enable patient independence and easier access to treatment. Two open-label, single-arm clinical trials, conducted in Japan and Korea, have assessed the safety and efficacy of self-administration of burosumab in both children and adults with XLH.

METHODS

In KRN23-003 (n = 15 children aged 1-12 years) and KRN23-004 (n = 5 children aged 3-13 years, n = 4 adults aged 21-65 years), children initially received 0.8 mg/kg of burosumab every 2 weeks and adults initially received 1.0 mg/kg of burosumab every 4 weeks. Self-administration was permitted from Week 4, and patients or carers were provided with training to inject correctly.

RESULTS

In both trials, burosumab had an acceptable safety profile with mainly mild-to-moderate adverse events. Following self-administration, no patients reported serious treatment-emergent adverse events ≥ grade 3, injection-site reactions or hypersensitivity reactions related to burosumab. Serum phosphate and active vitamin D levels increased from baseline in children and adults.

CONCLUSIONS

These results indicated that the efficacy and safety of burosumab when administered either by a carer or patient are similar to that when administered by an HCP and show that self-administration is a viable option for patients with XLH.

TRIAL REGISTRATION NUMBERS

NCT03233126 and NCT04308096.

Safety and Effectiveness of Etanercept Biosimilar SB4 for Rheumatic Diseases in South Korea: Real-World Post-marketing Surveillance Data

INTRODUCTION

SB4 is the first approved biosimilar of etanercept, a biologic tumor necrosis factor inhibitor, to treat various autoimmune diseases including axial spondylarthritis (axSpA), rheumatoid arthritis (RA), psoriatic arthritis (PsA), and plaque psoriasis (PsO). This post-marketing surveillance (PMS) study of SB4 investigated safety and effectiveness in routine clinical practice and is part of the drug approval process in Korea.

METHODS

This prospective, multi-center, open-label, observational, phase IV PMS study was designed to enroll patients with axSpA, RA, PsA, and PsO in Korea from September 2015 to September 2019. Both etanercept-naïve patients or patients switched from reference etanercept were included. SB4 was administered weekly via subcutaneous injections using pre-filled syringes. Safety was assessed by the incidence of adverse events (AEs), adverse drug reactions (ADRs) and serious adverse events (SAE). Effectiveness was assessed by the change from baseline of investigator-rated Bath Ankylosing Spondylitis Disease Activity Index (BASDAI) in patients with ankylosing spondylitis (AS) and disease activity score-28 (DAS28) in patients with RA.

RESULTS

Among 316 enrolled patients, 314 were included in the safety analysis (176 with AS and 138 with RA). The overall incidence of AEs, ADRs and serious AEs were 17.8, 9.9, and 1.3%, respectively. Most AEs were mild (66.7%) or moderate (31.1%) and not related to SB4 (58.9%). Most common AEs were injection site pruritus (1.9%) and injection site rash (1.3%). At week 24, mean disease activity scores significantly decreased compared to baseline in naïve patients with AS and RA (BASDAI 2.7 vs. 6.2, p < 0.0001; DAS28 3.8 vs. 5.7, p < 0.0001) and in switched patients with AS and RA (BASDAI 1.0 vs. 1.3, p = 0.0018; DAS28 2.4 vs. 2.9, p = 0.0893).

CONCLUSION

This first real-world evidence of SB4 from a phase IV PMS study in Korea shows comparable effectiveness to historical SB4 real-world evidence without any new significant safety signals.

Drug delivery improvements to enable a flexible care setting for monoclonal antibody medications in oncology - Analogue-based decision framework

INTRODUCTION

The substantial acceleration in healthcare spending together with the expenditures to manage the COVID19 pandemic demand drug delivery solutions that enable a flexible care setting for high-dose monoclonal antibodies (mAbs) in oncology.

AREAS COVERED

This expert opinion introduces an analogue-based framework applied to guide decision-making for associated product improvements for mAb medications that are either already authorized or in late-stage clinical development. The four pillars of this framework comprise (1) the drug delivery profile of current and emerging treatments in the market, (2) the needs and preferences of people treated with mAbs, (3) existing healthcare infrastructures, and (4) country-dependent reimbursement and procurement models. The following product optimization examples for mAb-based treatments are evaluated based on original research and review articles in the field: subcutaneous formulations, an established drug delivery modality to reduce parenteral dosing complexity, fixed-dose combinations, an emerging concept to complement combination therapy, and (connected) on-body delivery systems, an identified future opportunity to support dosing outside of a controlled healthcare institutional environment.

EXPERT OPINION

Leveraging existing synergies and learnings from other disease areas is a measure to reduce associated development and commercialization costs and thus to provide sustainable product offerings already at the initial launch of a medication.

Customer-centric product presentations for monoclonal antibodies

Delivering customer-centric product presentations for biotherapeutics, such as monoclonal antibodies (mAbs), represents a long-standing and paramount area of engagement for pharmaceutical scientists. Activities include improving experience with the dosing procedure, reducing drug administration-related expenditures, and ultimately shifting parenteral treatments outside of a controlled healthcare institutional setting. In times of increasingly cost-constrained markets and reinforced with the coronavirus pandemic, this discipline of "Product Optimization" in healthcare has gained momentum and changed from a nice-to-have into a must. This review summarizes latest trends in the healthcare ecosystem that inform key strategies for developing customer-centric products, including the availability of a wider array of sustainable drug delivery options and treatment management plans that support dosing in a flexible care setting. Three disease area archetypes with varying degree of implementation of customer-centric concepts are introduced to highlight relevant market differences and similarities. Namely, rheumatoid arthritis and inflammatory bowel disease, multiple sclerosis, and oncology have been chosen due to differences in the availability of subcutaneously dosed and ready-to-use self-administration products for mAb medicines and their follow-on biologics. Different launch scenarios are described from a manufacturer's perspective highlighting the necessity of platform approaches. To unfold the full potential of customer-centric care, value-based healthcare provider reimbursement schemes that incentivize the efficiency of care need to be broadly implemented.

Deucravacitinib for the treatment of psoriatic arthritis: the evidence so far

Psoriatic arthritis (PsA) is a heterogeneous disease that may develop in up to 30% of patients with psoriasis. PsA mainly involves peripheral joints; however, axial skeleton and entheses can also be involved. PsA is the result of a complex interplay between an individual's genotype and environmental factors that triggers an immune response and leads to the production of a cytokine cascade. Even though there are about 17 targeted therapies for PsA, a significant percentage of patients fail to respond to such treatments, have a partial response or develop side-effects. This article aims to review the current knowledge on deucravacitinib, a new oral small molecule that selectively inhibits tyrosine kinase 2 (TYK2), for the treatment of PsA. TYK2, a member of the Janus kinase (JAK) family, is responsible for mediating intracellular signalling of cytokines involved in the pathogenesis of PsA and psoriasis, namely IL-12, IL-23, and type I interferons. Recently, deucravacitinib was approved by the FDA for the treatment of moderate-to-severe plaque psoriasis and is currently being evaluated in phase III clinical trials in PsA. In a phase II clinical trial, deucravacitinib showed sustained effectiveness in several domains of PsA, namely arthritis, enthesitis and dactylitis, was well tolerated, and had a favourable safety profile. In patients with psoriasis, deucravacitinib had shown a higher efficacy than placebo and apremilast. Deucravacitinib is a promising therapy, with a unique mechanism of action. Results from the phase III programme and studies evaluating long-term response and head-to-head comparisons with other targeted agents will be important to establishing the position of deucravacitinib in the management of PsA.

Systemic IgG exposure and safety in patients with primary immunodeficiency: a randomized crossover study comparing a novel investigational wearable infusor versus the Crono pump

Aim: A novel, Investigational Wearable Infusor (IWI) was evaluated in a randomized, controlled, crossover, open-label study to determine if its delivery of subcutaneous immunoglobulin (IgPro20) achieved a comparable area under the concentration-time curve (AUC) for immunoglobulin G (IgG) versus the Crono S-PID-50 infusion pump (CP). EudraCT: 2016-003798-16. Materials & methods: Patients with primary immunodeficiency (PID) were randomized to receive IgPro20 in Sequence 1 (CP/IWI) or 2 (IWI/CP). The primary end point was AUC for IgG during the final week of each 4-week period. Results: 23 patients were enrolled. Evaluation of area under the concentration-time curve from time 0 (pre-infusion) to 7 days after infusion (AUC_0-7 days) (IWI: 1806 h*g/l; CP: 1829 h*g/l) and geometric mean ratio indicated comparable AUCs for IgG for both devices. Conclusion: Similar IgG exposure, indicated by AUC values, can be achieved with IgPro20 using the IWI or CP in PID.

How to select a best-value biological medicine? A practical model to support hospital pharmacists

DISCLAIMER

In an effort to expedite the publication of articles related to the COVID-19 pandemic, AJHP is posting these manuscripts online as soon as possible after acceptance. Accepted manuscripts have been peer-reviewed and copyedited, but are posted online before technical formatting and author proofing. These manuscripts are not the final version of record and will be replaced with the final article (formatted per AJHP style and proofed by the authors) at a later time.

PURPOSE

With the growing availability of biosimilars on the global market, clinicians and pharmacists have multiple off-patent biological products to choose from. Besides the competitiveness of the product's price, other criteria should be considered when selecting a best-value biological. This article aims to provide a model to facilitate transparent best-value biological selection in the off-patent biological medicines segment.

SUMMARY

The presented model was developed on the basis of established multicriteria decision analysis tools for rational and transparent medicine selection, ie, the System of Objectified Judgement Analysis and InforMatrix. Criteria for the model were informed by earlier research, a literature search, and evaluation by the authors. The developed model includes up-to-date guidance on criteria that can be considered in selection and provides background on the allocation of weights that may aid hospital pharmacists and clinicians with decision-making in practice. Three main categories of criteria besides price were identified and included in the model: (1) product-driven criteria, (2) service-driven criteria, and (3) patient-driven criteria. Product-driven criteria include technical product features and licensed therapeutic indications. Service-driven criteria consist of supply conditions, value-added services, and environment and sustainability criteria. Patient-driven criteria contain product administration elements such as ease of use and service elements such as patient support programs. Relative weighting of the criteria is largely context dependent and should in a given setting be determined at the beginning of the process.

CONCLUSION

The practical model described here may support hospital pharmacists and clinicians with transparent and evidence-based best-value biological selection in clinical practice.

The current paradigm for biologic initiation: A confirmatory quantitative analysis of self-injection training practices

BACKGROUND

Self-injected biologic therapies have gained significant prevalence across numerous therapeutic areas. A lack of specific guidance on best practices may lead to inadequate biologic initiation and training. We previously conducted a small-sample, qualitative analysis designed to identify gaps in self-injection training.

METHODS

A total of 277 HCPs performing routine biologic initiation and 264 patients currently self-injecting biologics completed this quantitative study remotely using an online survey. The primary objective was to validate previous qualitative findings and firmly characterize the current paradigm. As an exploratory objective, the study examined associations that may exist between training experiences and patient-reported outcomes.

RESULTS

Most patients (91.7%) reported receiving formal self-injection training, commonly conducted over one or two sessions. The mean overall training time reported was 37.8 and 30.4 minutes by patients and HCPs, respectively. Over one-third of patients reported lacking confidence that they could correctly self-inject during the first 6 months of treatment.

CONCLUSION

Current training practices may not be adequate to prepare patients to start their therapies. Considerable attention must be paid to providing patients with multiple opportunities for training sessions, training devices, and medical information for home access. Further studies should prospectively examine the impact of training techniques on patient-reported outcomes.

A Randomised Controlled Trial Comparing the Pharmacokinetics and Tolerability of the Proposed Adalimumab Biosimilar MSB11022 Delivered via Autoinjector and Pre-filled Syringe in Healthy Subjects

INTRODUCTION

The aim of the study was to demonstrate the bioequivalence, and compare the safety and tolerability of MSB11022, a proposed biosimilar of adalimumab, when delivered by either an autoinjector (AI) or a pre-filled syringe (PFS).

METHODS

In this pharmacokinetic (PK), parallel group, open-label study, 216 healthy volunteers were randomised 1:1 to receive a single subcutaneous injection of a 40 mg/0.8 mL dose of MSB11022 administered via AI or PFS. Coprimary PK endpoints were maximum observed concentration (C_max), area under the concentration-time curve (AUC) from time 0 to the last quantifiable concentration (AUC_0-t), and AUC from time 0 extrapolated to infinity (AUC_0-inf). PK equivalence between the AI and PFS administration methods was declared if the 90% confidence intervals (CIs) for the ratio of geometric least square means was entirely contained within the 80-125% equivalence margin for all coprimary endpoints. Safety and tolerability were also evaluated.

RESULTS

The 90% CI for the three coprimary PK endpoints (C_max, AUC_0-t and AUC_0-inf) were entirely contained within the predefined equivalence margins of 80-125%. Mean serum concentration-time profiles were similar following injection via AI or PFS. Treatment-emergent adverse events (TEAEs) were comparable across both treatment groups. Study device-related TEAEs were reported by 11.3% and 13.1% of subjects in the AI and PFS treatment groups, respectively. Study drug-related TEAEs were reported by 28.3% and 34.6% of subjects in the AI and PFS treatment groups, respectively. Few subjects experienced injection-site reactions, mainly pain and erythema, regardless of the administration method.

CONCLUSION

Delivery of MSB11022 via an AI is bioequivalent to delivery via a PFS. The safety and tolerability profile of MSB11022 was comparable across administration methods. The development of an AI for MSB11022 provides a choice of self-injection devices available to patients, potentially improving treatment compliance.

TRIAL REGISTRATION

ClinicalTrials.gov trial identifier: NCT04018599.

Technische Alltagshilfen in der Rheumatologie – Was ist sinnvoll, was ist bewiesen, welche Perspektiven gibt es?

Einschränkungen der Alltagsaktivität sind ein relevantes gesundheitliches Problem bei Patienten mit entzündlich-rheumatischen Systemerkrankungen. Technische Alltagshilfen nehmen in der Rehabilitation von diesen Teilhabeeinschränkungen einen hohen Stellenwert ein. Wir erläutern Evidenz für den Einsatz von Alltagshilfen und die neuen Entwicklungen auf diesem Gebiet.

Clinical endpoints of needle-free jet injector treatment: An in depth understanding of immediate skin responses

Objectives

Needle‐free jet injectors have been used in dermatological practice for many years. However, predefined clinical endpoints that guide physicians to choose optimal device settings have not been clearly defined. Here, we evaluate immediate skin responses as clinical endpoints for needle‐free jet injector treatments.

Methods

We injected methylene blue in ex vivo human skin using an electronically‐controllable pneumatic injector (EPI; 3–6 bar, 50–130 µl; n = 63), and a spring‐loaded jet injector (SLI) with fixed settings (100 µl; n = 9). We measured the immediate skin papule (3D‐camera), residual surface fluid (pipette), dermal dye distribution by estimating depth and width, and subcutaneous dye deposition.

Results

EPI with 4 bar and 100 µl resulted in the largest skin papule of 48.7 mm³ (35.4–62.6 mm³) and widest dermal distribution of 8.0 mm (5.5–9.0 mm) compared to EPI with 6 bar and 100 µl (p < 0.001, p = 0.018, respectively). The skin papule volume showed a significant moderate to high positive correlation with the width and depth of dye distribution in the dermis (r_s = 0.63, r_s = 0.58, respectively; p < 0.001 for both correlations). SLI showed high variability for all outcome measures. Finally, a trend was observed that a small skin papule (≤7 mm) and little residual surface fluid (≤10% of injection volume) were warning signs for subcutaneous deposition.

Conclusions

The immediate skin papule and residual surface fluid correspond with dermal drug deposition and are relevant clinical endpoints for needle‐free jet injector treatments in dermatological practice.

Impact of Routines and Rituals on Burden of Treatment, Patient Training, Cognitive Load, and Anxiety in Self-Injected Biologic Therapy

BACKGROUND

Self-injection of biologics is a mainstay of chronic disease treatment, yet the process of self-injection often causes persistent apprehension and anxiety, distinct from needle phobia. While literature alludes to the role that routines and rituals play in self-injection, there is no comprehensive study on the routines and rituals self-injectors employ, nor of the process by which they are discovered and ingrained.

METHODS

We conducted a mixed-method, observational pilot ethnography study of 27 patients with plaque psoriasis, psoriatic arthritis, or ankylosing spondylitis with and without prior biologic self-injection experience. Patients submitted self-made videos, photos, and projective exercises of an actual biologic self-injection and completed validated instruments to assess burden of treatment. Videos and photos containing routine and ritual elements were thematically categorized based on functional and emotional benefit, and analyzed for differences based on current biologic, dosing frequency, time on current biologic, and burden of treatment measures.

RESULTS

During patients' initial at-home injections, training gaps became apparent, leading to a process of experimentation aimed at reducing pain/anxiety, increasing confidence, and building a consistent injection process. Routines were present in 27/27 (100%) patients and anchored the time, place, and process for injection, and incorporated approved use steps for the injection device. Ritual elements served as emotional coping strategies for patients and were present in 21/27 (77.8%) of patients.

CONCLUSION

Our findings suggest that providing patients device training using adult learning principles, teaching routines and rituals concurrently, and providing at-home opportunities for practice with a device trainer may be useful strategies to reduce anxiety, avoid unnecessary experimentation, and improve adherence to injection therapy. While further studies are needed to generalize our findings, we posit that routine and ritual elements can be incorporated into existing patient-clinician interactions or novel digital interventions through mobile medical applications, smart training devices, and connected injection ecosystems.

Patient Preference for Self-Injection Devices in Rheumatoid Arthritis: A Discrete Choice Experiment in China

OBJECTIVE

Rheumatoid arthritis (RA) is increasingly treated with biologics, which is commonly administered by injection devices. The aim of this study is to evaluate patients' preferences for self-injection devices in RA, and to elicit their willingness to pay (WTP) for injector devices in China.

METHODS

RA patients were recruited from Beijing, Shanghai, Guangzhou, Chengdu, Wuhan and Xi'an in China. A discrete choice experiment (DCE) was employed to elicit patient preferences. Patients were presented with 15 choice sets that consisted of seven attributes, which were developed based on literature review and further validated by physicians. The seven attributes were as follows: operation steps, injection pain, feedback indication, needle visibility, needle protection, size and out-of-pocket costs. A mixed logit model was used to analyze the relative importance of seven attributes and to calculate the WTP for a changed attribute level.

RESULTS

Analyses included 114 adults with RA (mean age of 44.6 years old). When choosing the injection device, all attributes had significant influence. Among nonmonetary attributes, very slight injection pain was the most preferred for patients, followed by auto-injection method, thicker size, hidden needle, with needle protection and multiple feedback indication. Patients had a negative preference for increasing out-of-pocket costs. Patients were willing to pay CNY 45.26 for improving slight injection pain to very slight injection pain, CNY 13.26 for the auto-injection method, CNY 12.22 for the thicker size, CNY 10.06 for the hidden needle, CNY 9.82 for needle protection, and CNY 9.70 for multiple feedback indicators.

CONCLUSION

The results suggested that injection pain was the most important attribute for RA patients. Meanwhile, all other enhanced attributes of self-injection devices also significantly influence patients' selection on injection devices. Findings suggested that there is significant potential value in developing self-injection devices that could further help improve treatment adherence and promote patient-centered care in autoimmune diseases.

Advances in subcutaneous injections: PRECISE II: a study of safety and subject preference for an innovative needle-free injection system

Needle-free injection is a desirable goal for many reasons, including reducing pain, anxiety, and eliminating safety risks associated with needle-stick injuries. However, development of a safe, reliable needle-free device optimized for at-home use has been met with many challenges. Portal Instruments Inc. has been developing needle-free medication delivery using a well-designed hand-held device, PRIME, that is safe, intuitive to use, and utilizes advanced electronic control of a focused, high velocity, pressurized liquid injection stream. The PRECISE II human study demonstrated that the PRIME needle-free injection system was safe, well tolerated, and strongly preferred by participants for self-injections over a standard needle and syringe. In addition, the study was able to be completed early for superiority following the success of the pre-defined interim analysis.

A systematic literature review of existing tools used to assess medication adherence in connective tissue diseases: the state of the art for the future development of co-designed measurement tools

Lack of medication adherence is frequent in chronic connective tissue diseases and is associated with poorer health outcomes, low quality of life and economic loss. This research is based on a systematic literature search and aims to identify the surveys and tools used for the assessment of medication adherence in patients with connective tissue diseases (CTDs) and in particular the tools co-designed with patients. A systematic literature review was performed in PubMed and Embase databases searching for studies concerning the application of surveys or tools designed for medication adherence assessment. A specific analysis was also performed to identify which of these existing tools were developed in co-design with patients affected by CTDs. 1958 references were identified, and 31 studies were finally included. Systemic lupus erythematosus was the most investigated disease, followed by the Behçet's disease. The tools used to assess adherence in CTDs were, in most cases, valid and useful. However, the results showed a certain degree of heterogeneity among the studies and the medication adherence assessment and measurement tools adopted, which were mostly based on selfreported questionnaire. No co-designed tools with patients were found. Low- and non-adherence were explored in some CTDs with valid and useful tools, while other CTDs still need to be assessed. Therefore, more efforts should be made to better understand the specific reasons for the low- and non-adherence in CTDs patients.

Anti-HIV-1 Antibodies: An Update

Even after more than 30 years since its discovery, there is no cure for HIV-1 infection. Combination antiretroviral therapy (cART) is currently the only HIV-1 infection management option in clinics. Despite its success in suppressing viral replication and converting HIV-1 from a lethal infection to a chronic and manageable disease, cART treatment is life long and long-term use can result in major drawbacks such as high cost, multiple side effects, and an increase in the development of multidrug-resistant escape mutants. Recently, antibody-based anti-HIV-1 treatment has emerged as a potential alternative therapeutic modality for HIV-1 treatment and cure strategies. These antibody-based anti-HIV-1 treatments comprising either receptor-targeting antibodies or broad neutralizing antibodies (bNAbs) are currently being developed and evaluated in clinical trials. These antibodies have demonstrated potent antiviral effects against multiple strains of HIV-1, and shown promise for prevention, maintenance, and prolonged remission of HIV-1 infection. This review gives an update on the current status of these antibody-based treatments for HIV-1, discusses their mechanism of action and the challenges in developing them, providing insight for their development as novel clinical therapies against HIV-1 infection.

Development of syringes and vials for delivery of biologics: current challenges and innovative solutions

INTRODUCTION

Several new biopharmaceutical dosage forms have developed over time, such as lyophilized vial, liquid vial, and liquid prefilled syringe formulations. This review summarizes major pharmaceutical dosage forms and their advantages, disadvantages, and countermeasures against the shortcomings of each formulation. The appropriate combination of active pharmaceutical ingredients, excipients, and containers should be selected for the safe and less burdensome administration to the patients. Finally, we note certain opinions on the future development of not only therapeutic proteins but also gene therapeutics.

AREAS COVERED

This review is to discuss the challenges of the development of dosage forms to improve pharmaceutical stability and how they can be overcome.

EXPERT OPINION

Silicone oil-free syringes are highly preferable for minimizing subvisible particles in the drug. It can be proposed that materials with less protein adsorption property are preferable for the suppression of protein aggregation. It is required to minimize adverse effects of biopharmaceuticals through proper quality control of the drug in a container, based on the understating of physicochemical stability of the protein in solution, the physicochemical properties of the container, and their combinations.

Usability of the Certolizumab Pegol Auto-Injection Device in Australian Patients with Chronic Rheumatic Diseases: Results from a Market Research Study

PURPOSE

To determine the usability of the ergonomically designed certolizumab pegol pre-filled pen (CZP PFP) in Australian patients with active ankylosing spondylitis, active psoriatic arthritis or moderate-to-severe rheumatoid arthritis.

PATIENTS AND METHODS

CZP-naive patients were recruited from six clinical centers in Australia between November 2018 and May 2019. Patients and healthcare professionals (HCPs) reviewed training materials and completed pre-injection surveys; patients then self-administered ≥1 injection with the CZP PFP during each of three visits. Patients and HCPs then completed post-injection surveys. Some survey questions were adapted from the self-injection assessment questionnaire (SIAQ_v2.0).

RESULTS

Seventy patients participated (65 completed 3 visits); 33 were biologic-experienced. All patients agreed that training materials were informative; 94% found them easy to understand. Pre-injection, 89% of patients reported little or no anxiety about having injections; 67% (79% in biologic-experienced) were very confident about self-injecting the correct dose with the PFP. Ninety percent of patients were satisfied/very satisfied with their first experience with the CZP PFP; those with pre-injection anxiety reported lower satisfaction (43% vs 79% "very satisfied"). Confidence and satisfaction increased as visits progressed (for Visit 3 vs Visit 2: 69% vs 56% "very convenient"; 75% vs 67% "very confident"; 71% vs 57% "very satisfied"). All HCPs were confident in their patients' competence to self-inject and thought all patients had overall positive experiences.

CONCLUSION

Australian patients with chronic rheumatic disease reported high levels of confidence and satisfaction following initial use of the CZP PFP. The availability of devices with patient-centered design innovations may help overcome barriers to self-injection for improved adherence/outcomes.

Understanding and Minimising Injection-Site Pain Following Subcutaneous Administration of Biologics: A Narrative Review

Injection-site pain (ISP) is a subjective side effect that is commonly reported with the subcutaneous administration of biological agents, yet it may only be a concern to some. Multiple factors related to the product formulation, such as pH, volume and excipients, and/or to the injection process have the potential to contribute to ISP, while patient-related factors, such as low body weight, gender and age, can make an individual more susceptible to experiencing ISP. While total elimination of ISP remains unlikely with any subcutaneously administered agent, it can be minimised by helping the patient to develop a confident and competent injection technique via robust and effective training. Careful management of patient expectations along with open discussion regarding the potential risk of ISP may serve to minimise treatment-related anxieties and, importantly, allow the patient to remain in control of his/her treatment. Other interventions to help minimise ISP include psychological interventions, allowing biologics to reach room temperature prior to injection, using the most suitable injection device for the individual patient and selecting an alternative drug formulation, when available. Productive patient–physician communication remains important in order to support and optimise treatment experience and adherence, while also providing the opportunity for patients to discuss any ISP-related issues.

Development and psychometric evaluation of the assessment of self-injection questionnaire: an adaptation of the self-injection assessment questionnaire

BACKGROUND

Patient-reported outcome (PRO) instruments provide robust and effective means of evaluating patients' treatment experience; however, none adequately cover experience using self-injection devices with enhanced features, such as an electromechanical autoinjector (e-Device). The aim of this study was to develop a PRO instrument that accurately assesses patient experience of using an e-Device and to evaluate its psychometric properties.

METHODS

A mixed-methods approach was taken; two parallel, targeted literature reviews were conducted to identify relevant concepts and existing self-injection PRO instruments that could be adapted. Patient feedback obtained from two focus groups was used to inform initial instrument development. The pilot instrument was then administered in a multicenter, open-label, phase 3 clinical study in which patients self-injected certolizumab pegol using an e-Device, to gather evidence of its psychometric qualities. Exit interviews were conducted with a sub-sample of patients enrolled in the study to confirm the appropriateness and clarity of the items included and cognitively debrief the instrument. Confirmatory factor analysis (CFA) was conducted on all items, and each domain's internal consistency was measured using Cronbach's ɑ.

RESULTS

The literature searches identified several e-Device-specific concepts related to device features, device function, side effects/reactions/pain, confidence, and interference/convenience in daily life. Seven existing PRO instruments were identified. The Self-Injection Assessment Questionnaire (SIAQ), containing pre- and post-injection questionnaire modules, was selected as most suitable and adapted using feedback from 19 patients in the two focus groups to form the pilot Assessment of Self-Injection (ASI) questionnaire. CFA resulted in some changes to the grouping of items in the post-injection module domains following psychometric evaluation of the ASI. Internal consistency was satisfactory for all pre- and post-injection domains (ɑ > 0.8). Cognitive debriefing results from 12 patient exit interviews confirmed the ASI's appropriateness and clarity.

CONCLUSIONS

The ASI was developed iteratively with patient input and was evaluated in its intended clinical context of use. Psychometric analyses indicated promising cross-sectional results; the ASI was well understood and considered relevant by patients self-injecting using the e-Device, suggesting that it could be used in real-world settings to aid with clinical decision making.

TRIAL REGISTRATION

NCT03357471.

Clinical strategies for optimizing infusion center care through a pandemic

The national pandemic resulting from the novel coronavirus, COVID-19, has made the delivery of care for patients with cancer a challenge. There are competing risks of mortality from cancer versus serious complications and higher risk of death from COVID-19 in immunocompromised hosts. Furthermore, compounding these concerns is the inadequate supply of personal protective equipment, decreased hospital capacity, and paucity of effective treatments or vaccines to date for COVID-19. Guidance measures and recommendations have been published by national organizations aiming to facilitate the delivery of care in a safe and effective manner, many of which, are permanently adoptable interventions. Given the critical importance to continue chemotherapy, there remains additional interventions to further enhance patient safety while conserving healthcare resources such as adjustments in medication administration, reduction in laboratory or drug monitoring, and home delivery of specialty infusions. In this manuscript, we outline how to implement these actionable interventions of chemotherapy and supportive care delivery to further enhance the current precautionary measures while maintaining safe and effective patient care. Coupled with current published standards, these strategies can help alleviate the numerous challenges associated with this pandemic.