Management of T2DM with Worsening Proteinuria, Suboptimal Glycemic Control, and Elevated LDL
This patient requires immediate intensification of therapy with an SGLT2 inhibitor continuation, addition of a GLP-1 receptor agonist for glycemic control and cardiovascular protection, statin dose optimization or addition of ezetimibe for LDL reduction, and consideration of a nonsteroidal mineralocorticoid receptor antagonist given the worsening albuminuria despite RAS blockade. 1
Glycemic Control Strategy
Target HbA1c and Current Status:
- Current HbA1c of 57 mmol/mol (7.4%) is close to but above the target of <55 mmol/mol (<7.2%), representing improved but still suboptimal control 1
- The patient is already on triple therapy (Galvumet 50/1000mg BD [sitagliptin/metformin], empagliflozin 25mg OD), yet glycemic targets remain unmet 1
Medication Optimization:
- Continue empagliflozin 25mg daily as SGLT2 inhibitors are first-line therapy for T2DM with CKD, providing kidney and heart protection independent of glucose lowering 1
- Empagliflozin should be continued until dialysis or transplantation is initiated, even as eGFR declines, as it can be initiated when eGFR ≥20 ml/min per 1.73 m² 1
- Add a GLP-1 receptor agonist (preferably semaglutide or dulaglutide) as the next step to achieve glycemic targets, given proven cardiovascular benefits and additional glucose-lowering efficacy 1
- GLP-1 RAs are the preferred additional glucose-lowering drug when SGLT2i and metformin are insufficient to meet glycemic targets 1
- Continue metformin (component of Galvumet) as it remains appropriate with eGFR >90 ml/min per 1.73 m² 1
- Consider discontinuing or reducing sitagliptin (DPP-4 inhibitor component of Galvumet) when adding a GLP-1 RA, as combining these agents provides minimal additional benefit and is generally not recommended 1
Addressing Medication Non-Adherence:
- The patient reports occasionally forgetting post-meal medications, which likely refers to the Galvumet BD dosing 1
- Simplifying the regimen by switching to once-daily GLP-1 RA formulations (e.g., semaglutide, dulaglutide) may improve adherence 1
- Provide structured diabetes self-management education focusing on medication timing and the importance of consistent dosing 1
Diabetic Nephropathy Management
Worsening Proteinuria Assessment:
- ACR has increased from 6.4 to 11.8 mg/mmol, and microalbumin has risen from 7 to 46 mg/L, indicating progressive diabetic kidney disease 1
- Despite being on lisinopril 10mg (ACE inhibitor), proteinuria is worsening, suggesting inadequate RAS blockade or need for additional nephroprotective therapy 1
Intensification of Kidney Protection:
- Optimize RAS inhibition by increasing lisinopril dose (typical target doses are 20-40mg daily for diabetic nephropathy) if blood pressure tolerates, as ACE inhibitors/ARBs are first-line therapy for hypertension when albuminuria is present 1
- Add a nonsteroidal mineralocorticoid receptor antagonist (finerenone) given persistent albuminuria >30 mg/g (>3 mg/mmol) despite first-line therapy 1
- Finerenone is currently the only nonsteroidal MRA with proven clinical kidney and cardiovascular benefits in patients with T2DM and CKD with albuminuria 1
- This addition is specifically indicated for patients with T2DM and high residual risk of kidney disease progression, evidenced by persistent albuminuria despite SGLT2i and RAS blockade 1
- Monitor potassium levels closely when adding finerenone, ensuring normal potassium before initiation 1
Blood Pressure Optimization:
- Current blood pressure control appears suboptimal based on worsening proteinuria 1
- Target systolic blood pressure to 130 mmHg and, if well tolerated, <130 mmHg but not <120 mmHg 1
- Diastolic blood pressure target <80 mmHg but not <70 mmHg 1
- The patient is already on furosemide 5mg BD; consider adding a dihydropyridine calcium channel blocker if additional blood pressure lowering is needed after optimizing lisinopril dose 1
Lipid Management
Current Lipid Status:
- LDL 2.5 mmol/L with target <1.8 mmol/L indicates inadequate control despite atorvastatin 80mg nocte 1
- This patient has T2DM with diabetic nephropathy (CKD), placing them at very high cardiovascular risk 1
Lipid-Lowering Intensification:
- For patients with T2DM at very high CV risk, an LDL-C target of <1.4 mmol/L (<55 mg/dL) and LDL-C reduction of at least 50% is recommended 1
- Since the patient is already on maximum-dose atorvastatin (80mg), add ezetimibe 10mg daily as the next step 1
- Ezetimibe is indicated when statin monotherapy fails to achieve LDL targets and provides additional 15-20% LDL reduction 2
- If LDL remains above target after adding ezetimibe, consider adding a PCSK9 inhibitor or icosapent ethyl based on ASCVD risk 1
- Continue statin therapy as it is recommended for all patients with T1DM or T2DM and CKD, and statins are safe in patients with kidney disease 1
Monitoring for Statin-Related Effects:
- The patient has elevated ferritin (553, normal 20-450) and slightly elevated eosinophils (0.6), which should be monitored but are not contraindications to statin therapy 2
- Continue monitoring liver function tests and creatine kinase periodically, though current LFTs are normal 2
Lifestyle Modifications
Weight Management:
- Weight management should be a central focus, with an individualized weight loss goal of at least 5% body weight 1
- Substantial weight loss (>10%) increases the chance of diabetes remission and improves cardiovascular outcomes 1
- The addition of a GLP-1 RA with high weight loss efficacy can provide 10-15% weight loss or more 1
Physical Activity:
- Target at least 150 minutes per week of moderate-intensity physical activity 1
- Break up sedentary time with activity breaks (e.g., 5-minute activity break every hour) 1
- Address the patient's complaint of fatigue worsening with cold weather, which may improve with better glycemic control and weight loss 1
Dietary Modifications:
- Develop a personalized food plan through medical nutrition therapy, as there is no single dietary pattern recommended for all individuals with T2DM 1
- Focus on dietary patterns that support weight loss, glycemic control, and cardiovascular health 1
Addressing Fatigue
Potential Contributors:
- Suboptimal diabetes control (HbA1c 57) may contribute to fatigue 1
- Thyroid function is normal, ruling out hypothyroidism 1
- Hemoglobin is normal, ruling out anemia 1
- Consider that worsening kidney function or cardiovascular disease may contribute to fatigue 1
- Reassess fatigue after optimizing glycemic control and addressing cardiovascular risk factors 1
Monitoring and Follow-Up
Regular Risk Factor Reassessment (Every 3-6 Months):
- HbA1c monitoring every 3 months until target achieved, then every 3-6 months 1
- Lipid panel every 3-6 months after intensification until target achieved 1
- Urine albumin-to-creatinine ratio every 3-6 months to monitor proteinuria progression 1
- eGFR and electrolytes every 3-6 months, with more frequent monitoring after adding finerenone 1
- Blood pressure monitoring at each visit 1
Self-Monitoring:
- Emphasize self-monitoring behaviors including blood glucose monitoring, weight measurement, and physical activity tracking 1
- Review self-monitoring data at each visit to adjust treatment and reinforce behavioral goals 1
Common Pitfalls to Avoid
- Do not delay adding GLP-1 RA when SGLT2i and metformin are insufficient to achieve glycemic targets, as this patient has been on triple therapy without reaching goal 1
- Do not withhold statins due to kidney disease; they are safe and beneficial in CKD 1
- Do not overlook medication adherence issues; simplifying the regimen and providing education are critical 1
- Do not accept persistent albuminuria without escalating therapy; add finerenone when albuminuria persists despite SGLT2i and RAS blockade 1
- Do not use hypocaloric diets if the patient develops decompensated cirrhosis (not currently present), though this is not a concern in this case 1