Prevention In Community Clinics From Diabetic Kidney Disease

Diabetic Nephropathies

Diabetic Kidney Disease

The overall objective of the proposed randomized trial is to test whether implementation of intensively integrated care of microvascular risk factors (glycated hemoglobin \[HbA1C\], urinary albumin-to-creatinine ratio \[ACR\], blood pressure \[BP\], estimated glomerular filtration rate \[eGFR\], uric acid \[UA\] and low-density lipoprotein cholesterol \[LDL\]) will improve and reduce diabetic kidney disease events (DKD morbidity and mortality) among patients with diabetes and additional microvascular risk factors compared to usual care in public primary care setting (community health service center) in Xiamen, China.

Most patients with diabetes, which has reached epidemic proportions in China, have multiple uncontrolled microvascular risk factors due to suboptimal care. Diabetic kidney disease events (DKD) is one of the most common microvascular complications and has been becoming the leading cause of end-stage renal disease (ESRD). The overall objective of the proposed randomized trial is to test whether implementation of intensively integrated care of microvascular risk factors (glycated hemoglobin \[HbA1C\], urinary albumin-to-creatinine ratio \[ACR\], blood pressure \[BP\], estimated glomerular filtration rate \[eGFR\], uric acid \[UA\] and low-density lipoprotein cholesterol \[LDL\]) will improve and reduce diabetic kidney disease events (DKD morbidity and mortality) among patients with diabetes and additional microvascular risk factors compared to usual care in public primary care setting (community health service center) in Xiamen, China. The Prevention In Community Clinics From Diabetic Kidney Disease (PICK) study is an open-label randomized controlled trial which will be conducted in one public primary care setting (Lianqian community health service center) in Xiamen, China. The proposed trial will recruit 1240 patients with diabetes and additional microvascular risk factors but without DKD at baseline. Approximately 620 participants will be randomly assigned to the intervention group and similar participants to the control group. The intensively integrated care, which will provide a standardized, combined, multi-component intervention according to clinical guideline treatment for diabetes and comorbidities in a primary care setting, will be delivered by trained primary care physicians, health managers and diabetes specialists. Diabetic microvascular risk factors (glycated hemoglobin \[HbA1C\], urinary albumin-to-creatinine ratio \[ACR\], blood pressure \[BP\], estimated glomerular filtration rate \[eGFR\], uric acid \[UA\] and low-density lipoprotein cholesterol \[LDL\]) will be tested every 3 month for the intervention group and clinical treatment decisions based on the test results will be implemented accordingly when necessary. The intensively integrated care intervention will last for 36 months. HbA1C, ACR, BP, eGFR, UA, LDL, other variables and co-morbidities will be measured at baseline and follow-up visits every 3 month. Meanwhile management of the diabetic microvascular risk factors for the control group will be conducted as usual. In Phase 1, the primary outcomes are mean reductions in HbA1C, ACR, BP, eGFR, UA and LDL levels over the 18-month intervention between intervention and control groups. Net change in HbA1C, ACR, BP, eGFR, UA and LDL levels will be simultaneously modeled using a scaled marginal model which allows estimation of a single overall intervention effect. In Phase 2, the primary outcome is differences in DKD morbidity and mortality over the 36-month intervention between intervention and control groups. The secondary outcomes are the cumulative incidence rates of albuminuria and renal impairment over 36-months of intervention. The proposed trial is designed to provide 80% statistical power to detect a 4% reduction in the cumulative incidence of DKD at a 2-sided significance level of 0.05. An 90% follow-up rate is assumed and is taken into consideration in the power calculation. This implementation research project has a high impact in public health, because it will generate urgently needed data on an effective, practical, and sustainable intervention program aimed at reducing DKD burden among diabetes patients in developing countries.

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