Mounjaro vs. CagriSema: Which Weight Loss Medication is Right for You?

Mounjaro vs. CagriSema: Which Weight Loss Medication is Right for You?

With the rise of innovative treatments for weight management and diabetes, medications like Mounjaro (tirzepatide) and CagriSema are gaining attention. Both of these drugs target weight loss but differ in how they work and the stages of their availability. This article will dive into their similarities, differences, origin of their names, and expected release timelines, offering valuable insights for those considering these medications.

What Is Mounjaro (Tirzepatide)?

Mounjaro, developed by Eli Lilly, is a GLP-1 receptor agonist combined with GIP (glucose-dependent insulinotropic polypeptide). Its dual-action mechanism has been a game-changer for people with type 2 diabetes and those looking to lose weight. Mounjaro helps regulate blood sugar levels and reduce appetite, which contributes to significant weight loss. Initially, Mounjaro was approved for treating type 2 diabetes, but its effectiveness in weight management has led to its use for this purpose under a new name, Zepbound.

What Is CagriSema?

CagriSema is another emerging weight-loss drug, currently under development by Novo Nordisk, combining semaglutide (the active ingredient in Ozempic and Wegovy) with cagrilintide, a long-acting amylin analog. Semaglutide works as a GLP-1 receptor agonist, while cagrilintide suppresses appetite, promoting even greater weight loss than semaglutide alone. The combination of these two drugs is designed to provide enhanced weight loss benefits, especially for patients who need more substantial weight reductions.

Where the Names Come From

The name Mounjaro is derived from the Swahili word “majaro,” meaning “superior” or “great.” It reflects the drug’s dual-action superiority in managing both blood glucose and weight loss.

CagriSema, on the other hand, is a fusion of two key components of the drug: “Cagri” from cagrilintide and “Sema” from semaglutide. The name is straightforward, highlighting the two active substances in the medication.

Key Differences Between Mounjaro and CagriSema

FeatureMounjaro (Tirzepatide)CagriSema
Mechanism of ActionDual-action (GLP-1 + GIP agonist)Combination (GLP-1 agonist + Amylin analog)
Active IngredientsTirzepatideSemaglutide + Cagrilintide
Available for UseYes, as Mounjaro for diabetes and Zepbound for weight lossExpected release in 2025
CompanyEli LillyNovo Nordisk
FDA StatusApproved for type 2 diabetes and weight lossCurrently in clinical trials
Weight LossUp to 15-20% in clinical trialsUp to 20-25% in trials
CostMounjaro is available at around $620 in CanadaPricing unknown, but likely comparable to Wegovy
Side EffectsGastrointestinal (nausea, vomiting)Similar GI side effects, plus potential cagrilintide-specific reactions

 

Expected Release Date of CagriSema

While Mounjaro is already available for treating type 2 diabetes and under the name Zepbound for weight loss, CagriSema is still in clinical trials. Novo Nordisk anticipates the release of CagriSema to be sometime in 2025, following FDA approval. Given the success of both semaglutide and cagrilintide in individual trials, expectations are high for this combination therapy.

Similarities Between Mounjaro and CagriSema

1. Targeted Weight Loss: Both Mounjaro (tirzepatide) and CagriSema are focused on treating obesity and aiding significant weight loss.

2. Appetite Regulation: Both medications work by suppressing appetite, leading to lower caloric intake and helping patients manage their weight more effectively.

3. Use of GLP-1 Agonists: Both drugs rely on the action of GLP-1 receptor agonists. Mounjaro combines GIP with GLP-1, while CagriSema includes semaglutide, a potent GLP-1 receptor agonist.

4. Expected Results: Clinical trials have shown impressive weight loss results for both medications. Studies indicate that people can lose up to 15-20% of their body weight with consistent use.

5. Similar Patient Population: Both medications are targeted at patients with obesity or overweight individuals with comorbidities such as type 2 dia

Expected Efficacy and Weight Loss

While both medications show promising results in weight reduction, early clinical trials suggest that CagriSema could offer slightly better weight loss than Mounjaro. Some studies indicate that patients could lose up to 25% of their body weight with CagriSema, while the range for Mounjaro is typically around 15-20%. These findings position CagriSema as a potentially more powerful tool for severe obesity cases.

Mechanisms of Action

  • Mounjaro (Tirzepatide): Works on two key receptors—GLP-1 and GIP. The GLP-1 receptor helps reduce food intake and slow digestion, while GIP helps improve insulin sensitivity and glucose control. The combination provides a comprehensive approach to managing both diabetes and weight loss.

  • CagriSema: The combination of semaglutide and cagrilintide brings together the GLP-1 receptor agonist’s benefits of appetite suppression and blood sugar regulation with the appetite-suppressing qualities of cagrilintide, which mimics the natural hormone amylin. This two-pronged attack on weight helps patients lose even more weight than they might with semaglutide alone.

Potential Side Effects

  • Mounjaro: Common side effects include gastrointestinal issues like nausea, vomiting, and diarrhea. In some cases, patients may experience fatigue or reduced appetite.

  • CagriSema: Similar to Mounjaro, CagriSema’s side effects are expected to include nausea, vomiting, and digestive discomfort. The inclusion of cagrilintide may also introduce new side effects, such as injection-site reactions or a stronger suppression of appetite, leading to faster satiety.

Availability and Accessibility

  • Mounjaro (Tirzepatide): Currently available under the name Zepbound for weight loss and Mounjaro for diabetes management. Patients in the U.S. and Canada can access this medication, with lower prices found in Canada (around $158 per vial).

  • CagriSema: As of now, CagriSema is still undergoing clinical trials, with an expected release in 2025. Once approved, it may initially be more challenging to access, given its newness on the market and potential insurance hurdles.

Conclusion: Which is Better for You?

Both Mounjaro and CagriSema offer promising solutions for those struggling with weight management. Mounjaro has already established itself as an effective treatment, while CagriSema is still in development but promises to deliver even greater weight loss for patients. The decision between these two medications will depend on individual health goals, current treatment options, and personal preference for a dual- or single-drug approach to weight loss.

As CagriSema continues through its trials, it’s worth watching for updates on its release and real-world effectiveness compared to Mounjaro.

Reference:

  • Bariatric News discusses a clinical trial comparing CagriSema (semaglutide + cagrilintide) to tirzepatide for weight loss. The trial focuses on whether combining these agents leads to better results than tirzepatide alone. Read more: Bariatric News – CagriSema vs Tirzepatide.