High level of clinical inertia in insulin initiation in type 2 diabetes across Central and South-Eastern Europe: insights from SITIP study

Basal Insulin Initiation in Adults With Type 2 Diabetes Mellitus: A Retrospective Cohort Study Using Administrative Health Data in Alberta, Canada

OBJECTIVES

Pharmacologic treatment of type 2 diabetes mellitus (T2DM) follows a stepwise approach. Typically, metformin monotherapy is first-line treatment, followed by other noninsulin antihyperglycemic agents (NIAHAs) or progression to insulin if glycated hemoglobin (A1C) targets are not achieved. We aimed to describe real-world patterns of basal insulin initiation in people with T2DM, and A1C not at target despite treatment with at least 2 NIAHAs.

METHODS

A retrospective cohort study was conducted using administrative health data from Alberta, Canada, among adults with T2DM, indexed on the first test with 7.0% < A1C < 9.5% (April 1, 2011 to March 31, 2019), with at least 2 previous NIAHAs but no insulin. Kaplan-Meier (KM) methodology was used to analyze time to basal insulin initiation, with stratification by index A1C. Annual patient status was categorized into 5 groups: basal insulin initiation, death, NIAHA intensification, no change in therapy (subgroups of A1C <7.1% and A1C ≥7.1% [clinical inertia]), or discontinuance.

RESULTS

The cohort included 14,083 individuals. The KM cumulative probability of initiating basal insulin was 7.7% (95% confidence interval [CI] 7.3% to 8.2%) at 1 year, increasing to 43.1% (95% CI 42.1% to 44.1%) at 8 years of follow-up. Higher A1C levels were associated with greater proportions of basal insulin initiation. By year 8, proportions with NIAHA intensification and clinical inertia were 12.1% and 19.3%, respectively, relative to year 7.

CONCLUSIONS

Despite current clinical practice guidelines recommending achieving A1C targets within 6 months, less than half of the individuals with T2DM and clear indications for basal insulin initiated treatment within 8 years. Efforts to reduce delays in basal insulin initiation are needed.

The Barriers to Insulin Therapy Initiation in Type 2 Diabetes Patients: A Study of General Practitioner Perceptions in Huinan Community in South Shanghai

Background

Despite the demonstrated benefits of insulin therapy, many general practitioners (GPs) are hesitant to administer it due to challenges such as a lack of knowledge, time constraints, and patient reluctance. The barriers that prevent a GP from initiating insulin therapy may vary in comparison to those encountered by a diabetic patient; this aspect of clinical research in the South Shanghai metropolitan area has received limited attention so far.

Objective

This is a 6-months of interventional analytic cohort study. The prime aim is to investigate the barriers general practitioners (GPs) face when initiating insulin therapy for patients with type 2 diabetes (T2D).

Materials and Methods

As part of a training program, all 189 registered GPs in Nanhui Health Service Center in Shanghai were given a structured online-multi-choice questionnaire before and after a six-month interval, during which the GPs received sessions of training on insulin therapy either on theoretic classes or clinical practices.

Results

Before and after training, via the methods of multiple-response analyses, the results showed that social, GP's, and patient barriers to initiating insulin therapy were comparable. However, through the crosstabs chi-square test, we found significant changes in the basal insulin initiation following the prescription of the senior endocrinologists, the titration of insulin, and the need for training (p<0.05). The Spearman analyses discovered significant changes associated with the cause of initial insulin refusal and the factors influencing insulin administration. Finally, the binary logistic regression analysis revealed that distinct causes such as social factors, insurance, GP experience, insulin dosage calculation, follow-up, and patients' feelings are related to insulin treatment application before and after training.

Conclusion

According to this study, training increased general practitioners' confidence in initiating insulin administration, especially basal insulin. General practitioners require additional education on insulin therapy, with a potential need for increased face-to-face training for insulin initiation.

Diabetes Patients' Acceptance of Injectable Treatment, a Scientometric Analysis

Diabetes is a condition associated with multiple systemic secondary risk factors, besides pancreatic dysfunctions, affecting the population worldwide and with high costs impacting the healthcare systems. This paper aims to identify the major issues in patients' adherence to injectable diabetes treatment. After the interrogation of the Web of Science database, a scientometric map was generated, from which six directions of approach were identified as essential factors influencing the patient's adherence. These directions yielded clusters of related articles. Glycemic control with the endocrinology metabolic implications, lifestyle adjustments, the healthcare services, medication therapy algorithm, healthcare services digitalization and healthcare policies seem to have a major impact on injectable diabetes therapy and patient adherence. Further research on every one of the six directions is needed to identify the potential of increasing injectable treatment adherence in diabetes patients.

Initiation of insulin therapy in patients with type 2 diabetes: An observational study

The aim of the study was to assess the initiation of insulin therapy in patients with type 2 diabetes using health claims data on prescription medicines. The study evaluated time to insulin initiation and prescribing patterns of other anti-diabetic medicines before and after insulin initiation. Five years after starting non-insulin antidiabetic therapy, 6.4 % of patients were prescribed insulin, which is substantially lower compared to other similar studies. Among all patients who initiated insulin therapy in 2013, 30 % did not continue any other antidiabetic therapy. However, this proportion was lowered to 20 % in 2018. Before insulin initiation in 2018, metformin was prescribed in only 67 % of patients and sulfonylureas in 78 % of patients. Moreover, metformin and sulfonylureas were discontinued after insulin initiation in 26 and 37 % of patients, resp. More attention should be paid to the continuation of oral anti-diabetics, particularly metformin, after insulin initiation.

Weight Change and the Association with Adherence and Persistence to Diabetes Therapy: A Narrative Review

PURPOSE

Type 2 diabetes (T2D) medication adherence is poor and is impacted by individual drug characteristics. Treatment-associated weight change can affect medication-taking behavior. This review aimed to explore weight change on T2D therapy and consider its impact on adherence and discontinuation.

METHODS

Searches were conducted in MEDLINE and EMBASE (2005 to September 2020), and among recent congress abstract books for studies providing data on medication adherence or discontinuation and weight change in people with T2D (PwD).

RESULTS

Nine studies meeting the inclusion criteria were identified from 9188 bibliographic records. All three studies exploring weight change and discontinuation reported weight loss to be associated with higher persistence. Seven studies of varying design explored weight change and adherence. Four reported absolute weight change (kg) and adherence: one pooled data from different diabetes medications and demonstrated that self-reported adherence was significantly associated with weight loss; however, three studies found that weight change in adherent PwD was in the direction of the known weight profile (loss/gain) of the evaluated drug. Categorical weight loss (≥3%) and adherence were reported in two studies: one reported that numerically more adherent versus non-adherent PwD lost ≥3% weight regardless of the drug's weight profile, the other showed that early weight loss with a glucagon-like peptide-1 agonist was significantly associated with better adherence. One study reported adherence by categorical weight change; as weight loss increased, adherence scores improved, regardless of drug type.

CONCLUSION

Findings suggest that discontinuation rates may be lower in PwD who lose as compared to those who gain weight on T2D treatment. The evidence base on adherence and weight change is more challenging to interpret due to the range of study designs. Given the importance of weight control in T2D, further research exploring the individual's treatment, weight journey, and behaviors over time should be undertaken.

Uptake of new antidiabetic medicines in 11 European countries

BACKGROUND

Several new antidiabetic medicines (GLP-1 receptor agonists, DPP-4 inhibitors, and SGLT-2 inhibitors) have been approved by the European Medicines Agency since 2006. The aim of this study was to evaluate the uptake of new antidiabetic medicines in European countries over a 10-year period.

METHODS

The study used IQVIA quarterly value and volume sales data January 2006-December 2016. The market uptake of new antidiabetic medicines together with intensity of prescribing policy for all antidiabetic medicines were estimated for Austria, Croatia, France, Germany, Hungary, Italy, Poland, Slovenia, Spain, Sweden, and the United Kingdom. The following measures were determined: number of available new active substances, median time to first continuous use, volume market share, and annual therapy cost.

RESULTS

All countries had at least one new antidiabetic medicine in continuous use and an increase in intensity of prescribing policy for all antidiabetic medicines was observed. A tenfold difference in median time to first continuous use (3-30 months) was found. The annual therapy cost in 2016 of new antidiabetic medicines ranged from EUR 363 to EUR 769. Among new antidiabetic medicines, the market share of DPP-4 inhibitors was the highest. Countries with a higher volume market share of incretin-based medicines (Spain, France, Austria, and Germany) in 2011 had a lower increase in intensity of prescribing policy. This kind of correlation was not found in the case of SGLT-2 inhibitors.

CONCLUSIONS

This study found important differences and variability in the uptake of new antidiabetic medicines in the included countries.

Expert Opinion: A Call for Basal Insulin Titration in Patients with Type 2 Diabetes in Daily Practice: Southeast European Perspective

Therapeutic inertia related to insulin treatment, i.e. delays in initiation, especially titration of basal insulin, is a significant problem in daily practice in Southeast European countries. This phenomenon can be traced back to several patient-, physician- and health system-related factors. In recognition of the issue of inadequate insulin titration, 11 leading experts from countries in this region held a consensus-seeking meeting to review the current status of insulin initiation after non-insulin treatment and the potential barriers to insulin titration to provide an algorithm and tools for outpatient physicians and for patients aimed at optimizing basal insulin titration. The experts reached a consensus on the majority of the topics and proposed recommendations on how clinical inertia can be overcome. The outcomes of the meeting have been summarized in this paper.

Adoption of the ADA/EASD guidelines in 10 Eastern and Southern European countries: Physician survey and good clinical practice recommendations from an international expert panel

AIMS

Evidence from cardiovascular outcomes trials (CVOTs) of glucagon-like peptide-1 receptor agonists and sodium-glucose cotransporter-2 inhibitors was reflected in the most recent guidelines from the American Diabetes Association (ADA) and the European Association for the Study of Diabetes (EASD). The aim of the present study was to assess the adoption of the ADA/EASD guidelines in a convenience sample of physicians from Eastern and Southern Europe, the barriers to the implementation of these guidelines and the measures needed to facilitate their implementation.

METHODS

Attendees at two international diabetes conferences could volunteer to respond to a fully anonymous survey. Responses were analysed descriptively and a panel of experts from around the region was consulted to interpret the survey results.

RESULTS

Responses (n = 96) from 10 countries were analysed. Most participants (63.4%) considered the ADA/EASD guidelines fundamental to their practice. All respondents saw the value of the CVOT-based ADA/EASD recommendations and 77-80% generally implemented them. Measures suggested to improve adherence to the ADA/EASD guidelines included aligning reimbursement policy with the guidelines (54.4%), publishing guidelines in a simple and concise form (42.4%) and translating guidelines into local languages (33.3%).

CONCLUSIONS

Aligning reimbursement with recent evidence and providing short summaries of the ADA/EASD guidelines in local languages could facilitate physician adherence.

Total and partial clinical inertia of general physicians with type 2 diabetes mellitus patients in Central Bosnia Canton

BACKGROUND

The goal of this study was to determine the frequency and predictive factors of partial (PCI) and total clinical inertia (TCI) of general physicians (GPs) in Central Bosnia Canton in the care of type 2 diabetes mellitus patients.

MATERIAL AND METHODS

A longitudinal study was conducted with a prospective data collection. Total of 541 subjects of over 40 years of age with type 2 diabetes mellitus of both genders were included in the study. Total of 532 subjects completed the study. Questionnaires for physicians and patients and the Perceived Stress Scale were used, as well as anthropometric measurements and measurements of the glucose level in plasma, HbA1c, triglycerides, AST, ALT, creatinine and eGFR, which were examined on the day of study entry, after 6 months and after one year.

RESULTS

TCI was 5.8% and PCI was 25.6%. Patients with poorly regulated glycaemia and elevated triglyceride levels had the highest probability of PCI and TCI. Patients with an unaccomplished targeted level of blood pressure were more likely to experience PCI. Patients treated by both an internist and a general physician were more likely to have TCI as compared to patients treated only by an internist.

CONCLUSIONS

Patients with poor glycemic control experience PCI and TCI more often. In our study, referring to a diabetologist was observed as a non-inert procedure, which resulted in lower PCI and TCI, compared to studies where clinical inertia was defined only as non-intensification of medication therapy.

Physician related barriers towards insulin therapy at primary care centres in Trinidad: a cross-sectional study

BACKGROUND

Physician related factors with respect to insulin therapy can contribute to diabetes mellitus (DM) mismanagement. Patient related factors have been previously explored in a Trinidad survey. The main objective of this study was to explore primary care physicians' (PCPs) related barriers towards insulin therapy.

METHODS

A cross-sectional study on a convenience sample of PCPs in the public primary care system was done using an online survey.

RESULTS

Of the 170 PCPs contacted, 75 (44%) responded. There were 47 females (62.7%) and 28 males (37.3%) with a mean age of 35.9 yrs. Nearly 40% of physicians admitted that the education given to patients was inadequate to allow initiation of insulin therapy. Half the respondents admitted to insufficient consultation times and inadequate appointment frequency to allow for intensification of insulin therapy. Forty percent of PCPs admitted that HbA1c results were unavailable to guide their management decisions. Only 6.7% of physicians said they had access to rapid acting insulin, while 5.3% said they had access to insulin pens.

CONCLUSION

PCPs in Trinidad treating diabetes at the public primary care clinics face several barriers in administering proper insulin therapy. Addressing these factors can improve glycemic control in this population.

Effect of clinical inertia and trial participation in younger and older adults with diabetes having comorbidities and progressive complications

AIM

Clinical inertia is a multifactorial phenomenon, with contributing factors from people with diabetes and their healthcare team. It is widely cited that clinical inertia is minimised by participation in clinical trials. We assessed whether trial participation per se improves metabolic parameters in people with diabetes, or a specific focus on glycaemia is required.

METHODS

We compared improvement in glycaemic control in a pooled set of people assigned to the "placebo" arm from 25 glycaemia-focused trials with a pooled group of people with diabetes allocated to sham or non-pharmacological intervention for the treatment of diabetic retinal disease. Mean change in HbA1c (ANCOVA) was evaluated.

RESULTS

The overall placebo effect in studies focused on glucose control (N = 3081) was comparable between strata groups with and without complications. Adjusted least square mean change in HbA1c at 24 weeks was between -0.23% (-2.50 mmol/mol) and -0.32% (-3.50 mmol/mol). In studies focused on retinal disease (N = 288), the change from baseline in HbA1c was +0.10% (1.10 mmol/mol) and fasting plasma glucose was +0.50 mmol/L showing no improvement in metabolic parameters at 12 months.

CONCLUSIONS

Clinical trial participation alone does not seem to improve metabolic parameters in people living with diabetes. The benefits observed in glycaemia-focused studies were independent of age and comorbidities.

Clinical inertia is the enemy of therapeutic success in the management of diabetes and its complications: a narrative literature review

Diabetes mellitus is a chronic disease characterized by high social, economic and health burden, mostly due to the high incidence and morbidity of diabetes complications. Numerous studies have shown that optimizing metabolic control may reduce the risk of micro and macrovascular complications related to the disease, and the algorithms suggest that an appropriate and timely step of care intensification should be proposed after 3 months from the failure to achieve metabolic goals. Nonetheless, many population studies show that glycemic control in diabetic patients is often inadequate. The phenomenon of clinical inertia in diabetology, defined as the failure to start a therapy or its intensification/de-intensification when appropriate, has been studied for almost 20 years, and it is not limited to diabetes care, but also affects other specialties. In the present manuscript, we have documented the issue of inertia in its complexity, assessing its dimensions, its epidemiological weight, and its burden over the effectiveness of care. Our main goal is the identification of the causes of clinical inertia in diabetology, and the quantification of its social and health-related consequences through the adoption of appropriate indicators, in an effort to advance possible solutions and proposals to fight and possibly overcome clinical inertia, thus improving health outcomes and quality of care.