CagriSema (Cagrilintide/Semaglutide)

Prescription medicineOnly Available By Prescription

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Description

CagriSema is an experimental, once-weekly injection currently under investigation as a weight-loss treatment for adults with obesity or overweight, including some who have type 2 diabetes. The medication pairs cagrilintide, which mimics the natural hunger-regulating hormone amylin, with semaglutide, a GLP-1 agonist. These ingredients may help increase feelings of fullness, slow how fast the stomach empties, and support blood sugar control. CagriSema has not yet been cleared by the FDA, Health Canada, or other regulatory agencies, so the details below could change once an official approval and label become available.

Fact Table
Formula Cagrilintide: C273H420N74O81S1; Semaglutide: C187H291N45O59
License Investigational (Phase 3)
Bioavailability Subcutaneous: Moderate (semaglutide ~89%)
Legal status Not yet approved
Chemical Name Cagrilintide and Semaglutide (synthetic peptides)
Elimination half-life Cagrilintide: ~8 days; Semaglutide: ~7 days
Dosage (Strength) Investigational doses (e.g., Cagrilintide 2.4 mg + Semaglutide 2.4 mg weekly)
Pregnancy Not established; consult healthcare provider
Brands CagriSema (developmental)
Protein binding Semaglutide: >99%; Cagrilintide: Not well documented
PubChem CID Semaglutide: 56843331; Cagrilintide: Not listed
MedlinePlus Not assigned
ChEBI Semaglutide: 145346; Cagrilintide: Not available
ATC code Not yet assigned
DrugBank Semaglutide: DB13928; Cagrilintide: Not listed
KEGG Semaglutide: D10590; Cagrilintide: Not listed
Routes of administration Subcutaneous injection (once weekly)

Directions

CagriSema remains under study and has no approved dosing plan. It should be used only as part of an approved clinical trial or as a healthcare provider directs. In phase 3 research, the drug was given as a weekly injection beneath the skin, typically in the abdomen, thigh, or upper arm. Dosing starts low and is gradually increased over several weeks to let the body adjust and limit side effects such as nausea.

A missed dose may be taken as soon as possible within a set window of days. Otherwise, it should be skipped. Never use two doses together to make up for one that was missed. CagriSema is intended to be used alongside a reduced-calorie diet and increased physical activity.

Ingredients

The active ingredients are cagrilintide and semaglutide.

Cautions

Before starting this medication, it may help to discuss the following with a healthcare provider:

  • Any current health conditions
  • Any allergies
  • A list of every medication you take

CagriSema is an investigational drug that should be taken only with medical oversight, as its long-term safety has not yet been fully established.

In animal studies, semaglutide was associated with thyroid tumors, including medullary thyroid carcinoma. Whether this occurs in humans is not known. Let your provider know if you notice a lump or swelling in the neck, hoarseness, or trouble swallowing.

Digestive side effects like nausea, vomiting, and diarrhea can occur, especially when first starting or increasing the dose. Severe or ongoing vomiting or diarrhea may cause dehydration that can affect the kidneys.

GLP-1 receptor agonists such as semaglutide have been connected to pancreatitis, or inflammation of the pancreas, and gallbladder issues. Get medical care for intense, persistent stomach pain that may spread to the back, fever, or yellowing of the skin or eyes.

For people with type 2 diabetes who also take insulin or medicines that raise insulin levels, such as sulfonylureas, the chance of low blood sugar, also called hypoglycemia, may increase, and the doses of those medicines might need to be reduced.

If you have a history of diabetic eye disease, also called diabetic retinopathy, your healthcare provider may keep an eye on your vision, since quick shifts in blood sugar can influence this condition.

Because CagriSema slows stomach emptying, it can change how food and other oral medicines are absorbed. Let your healthcare team, including any surgeon or anesthesiologist, know you use it ahead of a scheduled surgery or procedure.

Since semaglutide stays in the body for an extended time, it should be discontinued well in advance of a planned pregnancy.

Contraindications

CagriSema does not yet have an approved label listing contraindications. Based on its ingredients and the enrollment criteria from clinical studies, it should not be used if any of the following apply:

  • A serious allergic, or hypersensitivity, reaction in the past to cagrilintide, semaglutide, or any of the ingredients.
  • A personal or family history of medullary thyroid carcinoma, or MTC, or Multiple Endocrine Neoplasia syndrome type 2, or MEN 2.
  • Pregnancy or breastfeeding, since CagriSema has not been evaluated in these groups.

Side Effects

The side effects most often reported with CagriSema in clinical trials were gastrointestinal. They were generally mild to moderate, usually appeared when treatment started or the dose increased, and were temporary. They include:

  • Nausea
  • Vomiting
  • Diarrhea
  • Constipation
  • Stomach, or abdominal, pain
  • Reduced appetite

More serious reactions are possible. Get medical help for signs of a serious allergic reaction, such as difficulty breathing, a severe rash, or swelling of the face, lips, tongue, or throat. Report any severe or lasting stomach pain that may move toward the back, symptoms of gallbladder trouble, or signs of low blood sugar such as shaking, sweating, confusion, or a rapid heartbeat. Also, seek medical advice for severe vomiting and diarrhea, as well as any new neck lump or swelling, hoarseness, or difficulty swallowing.

References

  1. Garvey WT, Blüher M, Osorto Contreras CK, et al. Coadministered Cagrilintide and Semaglutide in Adults with Overweight or Obesity . N Engl J Med. 2025;393(7):635-647.
  2. Davies MJ, Bajaj HS, Broholm C, et al. Cagrilintide-Semaglutide in Adults with Overweight or Obesity and Type 2 Diabetes . N Engl J Med. 2025;393(7):648-659.

Frequently Asked Questions about CagriSema


What is CagriSema?

CagriSema is a combination medication containing cagrilintide and semaglutide, designed for weight management and metabolic health improvement.


How does CagriSema work?

CagriSema works through dual mechanisms: semaglutide mimics GLP-1 to regulate appetite and slow gastric emptying, while cagrilintide acts as an amylin analog to enhance satiety and complement the effects of semaglutide.


How is CagriSema administered?

CagriSema is administered as a once-weekly subcutaneous injection using a pre-filled pen device.


What kind of weight loss results can I expect with CagriSema?

Clinical trials have shown that patients using CagriSema may experience significant weight loss, potentially greater than with either medication alone, with many patients losing 15-20% of their initial body weight.


What are the most common side effects of CagriSema?

Common side effects include nausea, vomiting, diarrhea, constipation, and injection site reactions. These typically decrease in intensity over time as your body adjusts to the medication.


Is CagriSema suitable for patients with diabetes?

CagriSema may be suitable for patients with type 2 diabetes, as both components can help improve glycemic control. However, dosing may need to be adjusted, and close monitoring by a healthcare provider is essential.


How long does it take to see results with CagriSema?

Most patients begin to notice weight loss within the first 4-8 weeks of treatment, with maximum effects typically observed after 6-12 months of consistent use.


Can I stop taking CagriSema once I reach my target weight?

CagriSema is generally considered a long-term treatment. Discontinuing the medication often results in weight regain, so any decision to stop should be discussed with your healthcare provider.


Do I need to follow a specific diet while taking CagriSema?

While CagriSema can help reduce appetite, it works best when combined with a healthy, balanced diet and regular physical activity as recommended by your healthcare provider.


Can CagriSema interact with other medications?

CagriSema may interact with certain medications, particularly those that affect blood sugar or are absorbed in the gastrointestinal tract. Always inform your healthcare provider about all medications you're taking.



IMPORTANT NOTE: The information provided above is for general awareness and educational purposes only. It is not intended to diagnose, treat, or replace professional medical or veterinary advice. Always consult your physician, pharmacist, or veterinarian regarding the safety, suitability, and proper use of any medication for yourself or your pet.

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