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Dulaglutide
Dulaglutide is a long-acting, once-weekly GLP-1 receptor agonist used for Type 2 Diabetes and cardiovascular risk reduction.
Brand: * Trulicity
→ GLP-1 Receptor Agonists Overview
Mechanism of Action
Dulaglutide activates the GLP-1 receptor.
Effects: * Increases glucose-dependent insulin secretion * Decreases glucagon secretion * Slows gastric emptying * Increases satiety * Promotes weight loss
Net effects: * Decreases HbA1c * Reduces body weight * Reduces major adverse cardiovascular events
Low hypoglycemia risk unless combined with insulin or sulfonylureas.
Indications
Type 2 Diabetes Mellitus
* Glycemic control * Cardiovascular risk reduction in high-risk patients
Atherosclerotic Cardiovascular Disease (ASCVD) ★
Dulaglutide reduces: * Myocardial infarction * Stroke * Cardiovascular death
Particularly beneficial in patients with established ASCVD or multiple risk factors.
Major Trial
REWIND Trial:
* Reduced major adverse cardiovascular events * Included many patients without established ASCVD * Demonstrated broad primary prevention benefit
Dosing
* Once-weekly subcutaneous injection * No oral formulation * Gradual dose escalation to improve tolerability
Adverse Effects
Common: * Nausea * Vomiting * Diarrhea * Early satiety
Serious (rare): * Pancreatitis * Gallbladder disease * Theoretical risk of medullary thyroid carcinoma
Contraindications
* Personal or family history of medullary thyroid carcinoma * MEN2 syndrome * Severe GI disease
Use caution in: * History of pancreatitis
Dulaglutide vs Other GLP-1 Agents
Exenatide * Shorter-acting formulations available
Liraglutide * Daily injection * Strong ASCVD data (LEADER)
Semaglutide * Greater weight loss * Oral option available
Dulaglutide: * Once-weekly dosing * Strong primary prevention data * Well tolerated
GLP-1 vs SGLT2
Dulaglutide: * Strong ASCVD reduction * Modest weight loss * Minimal HF benefit
SGLT2 Inhibitors: * Strong heart failure benefit * Strong renal protection
Clinical Pearls
* Weekly injection * Proven ASCVD benefit * Good primary prevention data * Low hypoglycemia risk * Not primary HF therapy
Related:
→ GLP-1 Receptor Agonists → SGLT2 Inhibitors → Cardiovascular Modules
