Core Viewpoint - Eli Lilly Canada has launched ZEPBOUND™ KwikPen® (tirzepatide injection) in Canada, providing a new chronic weight management solution for adults with obesity or overweight [2][5]. Group 1: Product Overview - ZEPBOUND™ is a once-weekly injection approved for long-term weight control in conjunction with a healthy diet and regular exercise [2]. - It is suitable for adults with a Body Mass Index (BMI) of 30 or higher, or those with a BMI between 27 and 30 who have weight-related conditions such as hypertension, dyslipidemia, type 2 diabetes, sleep apnea, or cardiovascular diseases [2]. Group 2: Mechanism of Action - ZEPBOUND™ regulates appetite and metabolism by simultaneously activating two hormone receptors: GIP (glucose-dependent insulinotropic polypeptide) and GLP-1 (glucagon-like peptide-1) [3]. - It is the first and only dual receptor agonist approved in Canada for long-term weight management, offering both weight loss and weight maintenance effects [3]. Group 3: Clinical Evidence - The approval of ZEPBOUND™ is based on results from four global SURMOUNT phase 3 clinical trials (SURMOUNT-1 to SURMOUNT-4) [5]. - In the SURMOUNT-1 study, 2,539 adults without diabetes but with obesity or overweight and related conditions participated. After 72 weeks, participants using the maximum dose (15 mg) lost an average of 21.8 kg (48 lbs), while those using the minimum dose (5 mg) lost an average of 15.4 kg (34 lbs). The placebo group lost an average of only 3.2 kg (7 lbs) [5]. Group 4: Health Challenges and Economic Impact - Obesity is a serious chronic disease affecting one in three Canadians, linked to over 200 diseases, including heart disease and type 2 diabetes [6]. - The annual economic loss related to obesity in Canada has reached CAD 27.6 billion, which is 20% higher than previous estimates [6]. Group 5: Reception and Advocacy - Medical professionals and patient organizations have welcomed the launch of ZEPBOUND™, highlighting it as an important advancement in obesity treatment [8]. - Experts emphasize the need for equitable access to treatment and recognition of the challenges faced by individuals with obesity, advocating for societal change and support [8].