Cost-effectiveness of canagliflozin and dapagliflozin for treatment of patients with chronic kidney disease and type 2 diabetes

Cost-effectiveness of sodium-glucose cotransporter 2 inhibitors in the treatment of chronic kidney disease: a systematic review

INTRODUCTION

Chronic kidney disease (CKD) is a severe, progressive condition with a significant economic burden. We performed a systematic review to assess the cost-effectiveness of sodium-glucose cotransporter 2 (SGLT2) inhibitors in treating CKD.

METHODS

A comprehensive search was conducted across PubMed, Embase, Web of Science, Scopus, INAHTA, NHS EED, and relevant websites. Two reviewers independently screened titles and abstracts, extracted data, and assessed study quality using CHEERS 2022 and Phillips's checklist.

RESULTS

Thirteen model-based cost-utility studies met the inclusion criteria, evaluating Empagliflozin (n = 3), Canagliflozin (n = 3), and Dapagliflozin (n = 8). Empagliflozin or Dapagliflozin plus standard care (SoC) was cost-effective compared to SoC alone in CKD patients, regardless of type 2 diabetes (T2D) status. In CKD patients with T2D, SGLT2 inhibitors combined with SoC were cost-saving in high-income countries under health system perspective whereas Dapagliflozin was not cost-effective compared to Canagliflozin. No study met all criteria of the CHEERS 2022 checklist, and most did not fully satisfy Phillips's checklist for economic models.

CONCLUSION

Adding SGLT2 inhibitors to SoC is cost-saving for treating CKD with T2D and cost-effective for CKD patients with or without T2D.

REGISTRATION

The review protocol was registered in the International Prospective Register of Systematic Reviews (PROSPERO) under registration number CRD42023469005.

Cost-effectiveness of finerenone added to standard of care for patients with type 2 diabetes-related chronic kidney disease in the United States

AIM

To examine the cost-effectiveness of adding finerenone to standard of care (SoC) for treating type 2 diabetes mellitus (T2DM)-related chronic kidney disease (CKD) in the United States.

MATERIALS AND METHODS

Based on the clinical data analysed by FIDELITY, we referenced the validated FINE-CKD model (Markov model) to evaluate the cost-effectiveness of SoC versus SoC + finerenone from the perspective of US payers. The model was cycled for 35 years in 4-month cycles, with cost and utility values derived from the published literature. The primary outcomes were incremental cost-effectiveness ratio (ICER) and quality-adjusted life years (QALYs). Deterministic and probabilistic sensitivity analyses were conducted to assess the robustness of the base-case results.

RESULTS

The treatment strategy of finerenone plus SoC led to gains of 6.95 QALYs and had a lifetime cost of $491 745.31. Compared to SoC, that strategy yielded 0.48 more QALYs at an added cost of $65 305.72. The ICER for finerenone was $135 257.06 per QALY, which is below the willingness-to-pay threshold of United States ($150 000/QALY). The results were sensitive to the hazard ratios associated with the efficacy of finerenone and its cost. Probabilistic sensitivity analyses showed that the probability that finerenone plus SoC would be cost-effective was 57.6%.

CONCLUSIONS

For patients with T2DM-related CKD, adding finerenone to SoC may be a cost-effective option in the United States. Reasonable price reductions for finerenone could potentially benefit more patients.

An overview of the CANVAS Program and CREDENCE trial: The primary outcomes and key clinical implications for those managing patients with type 2 diabetes

AIMS

To provide an overview of the primary outcomes and key clinical implications of the CANVAS Program and CREDENCE trial, which were event-driven, double-blind randomized controlled trials that established the efficacy and safety of canagliflozin in those with type 2 diabetes (T2D) and high cardiovascular risk (CV) or albuminuric chronic kidney disease (CKD).

METHODS AND RESULTS

The CANVAS programme (CANVAS and CANVAS-R trials) randomized 10 142 people with T2D and high CV risk to canagliflozin or placebo and followed them for a median of 126 weeks. The primary efficacy outcome was met, with canagliflozin treatment associated with a 14% reduction in major adverse CV events (hazard ratio [HR] 0.86, 95% confidence interval [CI] 0.75 to 0.97; p < 0.001) as compared to placebo. The CREDENCE trial randomized 4401 individuals with T2D and albuminuric CKD to canagliflozin or placebo and followed them for 109 weeks. The CREDENCE trial also met its primary endpoint; canagliflozin treatment was associated with a 30% reduction in the composite of kidney failure, sustained doubling of serum creatinine level, or death from kidney or CV causes (HR 0.70, 95% CI 0.59 to 0.82; p < 0.001). Substantial reductions in hospitalization for heart failure (CANVAS: HR 0.67, 95% CI 0.52 to 0.87; CREDENCE: HR 0.61, 95% CI 0.47 to 0.80) and other key CV and kidney outcomes were also identified. Relative clinical benefits were consistent across subgroups defined by baseline age, sex, kidney function and history of CV disease but absolute benefits were greatest in those at highest baseline risk. Total serious adverse events were less common with canagliflozin treatment. Concerns about amputation and fracture risk observed in the CANVAS Program were not seen in CREDENCE and appear to have been spurious chance findings.

CONCLUSION

Canagliflozin reduced important CV, kidney and mortality outcomes in those with T2D and high CV risk or CKD across diverse patient groups, with a good safety profile. Taken together with the other sodium-glucose cotransporter-2 inhibitor CV and renal outcomes trials, these landmark findings have changed the treatment landscape for patients worldwide.

Real-Time Use of SGLT2i Verified in Pre-dialysis: The RSVP Cross-sectional Study

BACKGROUND

The use of sodium-glucose cotransporter 2 inhibitors (SGLT2i) in nephrology practice is increasingly becoming standard of care in patients with diabetes or those with proteinuria.

OBJECTIVES

The primary outcome was to identify the proportion of pre-dialysis patients with chronic kidney disease (CKD) G3a, G3b, or G4 prescribed an SGLT2i and describe their characteristics.

METHODS

This was a retrospective, multicentric, cross-sectional study of patients with CKD followed at 4 pre-dialysis clinics in the province of Quebec, Canada. We collected data of multiple covariates associated with prescribing SGLT2i in patients over 18 years of age with CKD G3a, G3b, or G4. We then performed a multivariate logistic regression to assess their associations.

RESULTS

Of the 874 patients included, 22.7% were prescribed an SGLT2i. Factors most strongly associated included male sex (odds ratio [OR] = 4.88, 95% CI = 2.38-10.03), being prescribed metformin (OR = 4.30, 95% CI = 2.23-8.31), having type 2 diabetes (OR = 4.00, 95% CI = 1.86-8.62), or having an albumin-to-creatinine ratio greater than 300 mg/g (OR = 1.84, 95% CI = 1.08-3.14). The majority of patients (60.4%) had their SGLT2i initiated by the pre-dialysis clinic and the most frequent adverse event was an initial increase in serum creatinine 1 week after starting treatment (33.9%).

CONCLUSION AND RELEVANCE

An increasing number of patients with CKD are being prescribed SGLT2i. Nonetheless, significant disparities in sex, severity of disease, and comorbidities remain. We suggest that specific strategies be put in place to promote prescribing of SGLT2i in women and other at-risk populations, in particular among nephrology teams, to improve patient care.

Analysing uric acid levels to assess the effectiveness of dapagliflozin

BACKGROUND

Sodium-glucose cotransporter-2 inhibitors are an innovative diabetes treatment that lowers blood sugar levels without insulin. A growing body of evidence suggests that blood sugar levels are tightly correlated with uric acid levels in their blood and urine. To alleviate type 2 diabetes (T2DM) suffering, we tested dapagliflozin on serum and urinary uric acid levels of patients with T2DM and measured its efficacy in reducing uric acid levels.

METHODS

A study was conducted on 60 people with T2DM. Patients were treated with Dapagliflozin doses of 10 mg daily for 3 months. Three months later, we measured body weight, fasting, and postprandial blood glucose levels, Hemoglobin A1C (HbA1c), serum lipids, renal function tests, routine urine, and serum uric acid.

RESULTS

A number of clinical parameters of T2DM patients were compared to those of healthy subjects of the same age group. A comprehensive analysis of all parameters was conducted to evaluate dapagliflozin's impact. After 90 days of dapagliflozin treatment, serum uric acid levels dropped significantly from 9.0 to 8 mg/dL in the dapagliflozin group, as well as uric acid percentage in urine changed from 16.1 to 23.6 %. After three months of treatment, HbA1C levels decreased from 9.8 % to 8.5 %.

CONCLUSION

Following treatment with dapagliflozin, the patients' Homeostatic Model Assessment for Insulin Resistance decreased to 4.0. Further, multivariate correlation analysis showed a correlation of serum uric acid with glycemic profile positively. In conclusion, dapagliflozin lowers uric acid levels and increases insulin sensitivity in diabetic patients to improve their glycemic control.

Cost-effectiveness of add-on empagliflozin versus standard of care in management of CKD in Malaysia, Thailand and Vietnam - findings from a modelling study assessing an EMPA-KIDNEY eligible population, using CKD progression model

BACKGROUND AND OBJECTIVES

Nearly one in ten individuals in South-East Asia are estimated to be affected by chronic kidney disease (CKD). The burden of end-stage kidney disease is significant and can be heavy on the healthcare system. The recent EMPA-KIDNEY trial demonstrated a significant reduction in the risk of kidney disease progression or cardiovascular death in patients with CKD with a broad range of kidney function using add-on empagliflozin versus standard of care (SoC) alone. The objective of this study was to estimate the economic benefit of empagliflozin for patients with CKD in Malaysia, Thailand and Vietnam.

METHODS

An individual patient level simulation model with an annual cycle that estimates the progression of kidney function and associated risk-factors was employed. Local costs and mortality rates were estimated from a wide range of published literature. A healthcare perspective was used over a 50-year time horizon.

RESULTS

The use of add-on empagliflozin versus SoC alone was found to be cost-saving in Malaysia and Thailand and cost-effective (ICER: 77,838,407 Vietnam Dong/QALY vs. a willingness to pay threshold of 96,890,026/QALY) in Vietnam. The bulk of the costs avoided over a lifetime is derived from the prevention or delay of dialysis initiation or kidney transplant - the cost offsets were nearly twice the additional treatment cost. The results were similar in patients with and without diabetes and across broad range of albuminuria.

CONCLUSIONS

The use of add-on empagliflozin in a broad population of patients with CKD is expected to be cost-saving in Malaysia and Thailand and cost-effective in Vietnam and will help alleviate the increasing burden of CKD in the region.

Dapagliflozin versus empagliflozin in patients with chronic kidney disease

Background and Aim: Dapagliflozin and empagliflozin have demonstrated favorable clinical outcomes among patients with chronic kidney disease (CKD). However, their comparative monetary value for improving outcomes in CKD patients is unestablished. We examined the cost-per-outcome implications of utilizing dapagliflozin as compared to empagliflozin for prevention of renal and cardiovascular events in CKD patients. Methods: For calculation of preventable events we divided the allocated budget by the cost needed to treat (CNT) for preventing a single renal or cardiovascular event. CNT was derived by multiplying the annualized number needed to treat (aNNT) by the annual therapy cost. The aNNTs were determined based on data from the DAPA-CKD and EMPEROR-KIDNEY trials. The budget limit was defined based on the threshold recommended by the United States' Institute for Clinical and Economic Review. Results: The aNNT was 42 both dapagliflozin (95% confidence interval [CI]: 34-59) and empagliflozin (CI: 33-66). The CNT estimates for the prevention of one primary event for dapagliflozin and empagliflozin were comparable at $201,911 (CI: $163,452-$283,636) and $209,664 (CI: $164,736-$329,472), respectively. However, diabetic patients had a higher CNT with dapagliflozin ($201,911 [CI: $153,837-$346,133]) than empagliflozin ($134,784 [CI: $109,824-$214,656]), whereas non-diabetic patients had lower CNT for dapagliflozin ($197,103 [CI: $149,029-$346,133]) than empagliflozin ($394,368 [CI: $219,648-$7,093,632]). The CNT for preventing CKD progression was higher for dapagliflozin ($427,858 [CI: $307,673-$855,717]) than empagliflozin ($224,640 [CI: $169,728-$344,448]). For preventing cardiovascular death (CVD), the CNT was lower for dapagliflozin ($1,634,515 [CI: $740,339-∞]) than empagliflozin ($2,990,208 [CI: $1,193,088-∞]). Conclusion: Among patients with CKD, empagliflozin provides a better monetary value for preventing the composite renal and cardiovascular events in diabetic patients while dapagliflozin has a better value for non-diabetic patients. Dapagliflozin provides a better monetary value for the prevention of CVD, whereas empagliflozin has a better value for the prevention of CKD progression.