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CagriSema UK

CagriSema

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Overview

  • In clinical testing
  • Daily oral pill
  • GLP-1 medication
  • Mounjaro and Wegovy are injectable alternatives

Mounjaro is currently the latest generation GLP1 treatment available in the UK. This can help patients achieve 15-22.5% body weight loss.

Overview

What is CagriSema?

CagriSema is a new weight loss medication that combines two medicines: cagrilintide and semaglutide. It is given as a simple once-a-week injection. This treatment is designed to help with weight loss for people facing obesity.

How does CagriSema Work?

CagriSema works by combining two medicines that help with weight loss and improving metabolism:

  • Cagrilintide: A long-acting amylin analogue. Designed to supresse appetite by acting on the brain’s hunger signals. It also slows digestion, helping you feel full for longer after eating.

  • Semaglutide: A GLP-1 receptor agonist.

    Reduces hunger, making you feel more satisfied sooner, and helps control blood sugar by improving insulin levels and reducing glucagon.

Each of these drugs mimics the actions of a hormone in your body; enabling patients to lose weight effectively, by slowing the digestion of food, helping you feel more full, reduce your appetite and calorie intake.

What Are the Side Effects of CagriSema?

As this treatment has not yet been released, we do not have a full list of possible side effects. Based on the ingredients, however, it is likely that the most common side effects may include nausea, diarrhoea, vomiting and headaches.

Although Novo Nordisk has not went in to any details of side effects during trials, they did confirm that the most common adverse events with CagriSema were gastrointestinal, and the vast majority were mild to moderate and diminished over time. Which would be consistent with the known profiles of GLP-1 receptor agonists.

How to Take CagriSema

Much like its component ingredients, CagriSema will be an injectable medication, administered as a once weekly, typically into the abdomen, thigh, or upper arm.

How to Store CagriSema

Official storage instructions for CagriSema have not yet been released. However, it is likely that CagriSema would need to be kept refrigerated between 2°C and 8°C (36°F to 46°F) when not in use to maintain its stability and efficacy.

Always store medications out of sight and reach of children.

Contraindications and Interactions

A complete list of contraindications and drug interactions has not yet been released. A full list will be published in the patient information leaflet when the drug becomes available.

Based on the active ingredients of this medication we can likely considerations of CagriSema may be:

To be avoided:

  • If you or a family member has had medullary thyroid cancer or a rare hormonal disorder called MEN 2.

  • If you are allergic to any ingredient in CagriSema.

  • If you have serious digestive issues like gastroparesis (slowed stomach emptying).

  • If you are pregnant or breastfeeding.

Potential Interactions:

  • Oral medicines: As CagriSema may slow digestion, this could affect how some tablets ,pills work or even capsules.

  • Similar medications: Using them together increases the chance of side effects like nausea or low blood sugar.

  • Diabetes medications (e.g., insulin or sulfonylureas): These may cause low blood sugar when combined with CagriSema, attentive monitoring would be recommended.

  • Critical medicines (like blood thinners or thyroid drugs): The way these medicines are absorbed may change when taken with CagriSema.

The above considerations are ONLY what could be expected based on the ingredients of CagriSema. It’s important that you read the patient information leaflet and inform the prescribing doctor of any medications you are taking before taking CagriSema to avoid any risky interactions.

CagriSema Price

 CagriSema
PriceCurrently Unavailable

When will CagriSema be Available?

Novo Nordisk plans to start a new trial in the first half of 2025 as they further the additional weight-loss potential of CagriSema. With that in mind it’s expected to submit the drug for regulatory approval towards the end of 2025, meaning it may be available as soon as 2026.

Points of Interest (so far) in CagriSema Trials:

  1. Advanced Trials:

    Novo's trial is the most advanced for an amylin drug candidate currently being tested in the market.

  2. Dual Mechanism of Action:

    CagriSema combines two powerful weight-loss mechanisms:

    • Cagrilintide, which mimics amylin, enhances satiety, and slows gastric emptying.

    • Semaglutide, a GLP-1 receptor agonist, suppresses appetite and regulates blood sugar.

    This dual approach targets hunger and calorie intake more effectively than either drug alone.

  3. Superior Weight Loss Results:

    In the REDEFINE 1 trial, CagriSema achieved an average weight loss of 22.7% in adults with obesity, outperforming semaglutide (16.1%) and cagrilintide (11.8%) used alone.

    Over 40% of participants on CagriSema achieved a weight reduction of 25% or more.

  4. Flexible Dosing:

    The trial used a flexible dosing protocol, allowing patients to adjust their dose based on tolerability. However, only 57% of patients reached the highest dose, suggesting potential room for improved protocols.

  5. Potential Cardiovascular Benefits:

    Ongoing REDEFINE 3 trials are assessing whether CagriSema can reduce cardiovascular risks, a major concern for people with obesity or type 2 diabetes.

  6. Possibly the Next Evolution of GLP-1 Injections:

    If approved, CagriSema could become a key competitor in the obesity treatment market, potentially rivalling Eli Lilly’s tirzepatide more commonly known as Mounjaro or Zepbound, which achieved 21% weight loss in clinical trials.

  7. Tackling Obesity Globally:

    CagriSema is being studied in a comprehensive phase 3 program, including thousands of participants across multiple trials, reflecting the growing emphasis on tackling obesity as a chronic condition.

Learn more about Novo Nordisk’s CagriSema trial.

FAQ

General Information

What are weight loss injections like Mounjaro, Wegovy, and Ozempic?

GLP-1 treatments such as Wegovy and Ozempic (semaglutide) or Mounjaro (tirzepatide) mimic hormones that help control appetite and blood sugar by signalling fullness. Initially used for diabetes, they are now approved for weight loss at higher doses.

Who can use weight loss injections?

Ozempic is for type 2 diabetes, whereas Wegovy and Mounjaro are prescribed for obesity. They are typically recommended for individuals with a BMI of 30+ (or 27+ with related health issues), with UK guidelines usually suggesting them if your BMI is above 35 or 30+ with additional conditions.

Can I use Wegovy or Mounjaro without diabetes?

Yes. Wegovy and Mounjaro are approved for weight loss in people without diabetes who meet the required BMI criteria, while Ozempic primarily targets diabetes but can also aid weight loss.

Is a GLP-1 injection like insulin?

No. Weight loss injections are not insulin. They help your body release its own insulin and reduce appetite, working through a different mechanism than insulin, which directly lowers blood sugar.

Is there a pill form of GLP-1 treatments?

Only Rybelsus, an oral semaglutide, is available – but solely for diabetes. Weight loss injections such as Ozempic, Wegovy, and Mounjaro are available by injection only.

Effectiveness & Results

How effective are GLP-1 injections for weight loss?

Very effective. Mounjaro can achieve around 20% weight loss, Wegovy about 15%, and Ozempic typically 5–10%. Results are optimised when combined with diet and exercise.

How quickly do weight loss injections work?

Weight loss is gradual. Initial appetite changes may occur within weeks, but significant weight loss typically appears between 3–6 months and continues over time.

Why am I not losing weight with my Weight Loss Pen?

Initial weight loss can be slow, especially at lower doses. Higher doses of Mounjaro and Wegovy tend to offer better results. Also, check your diet and lifestyle, and discuss any concerns with your doctor.

What if my GLP-1 injection isn’t effective enough?

Your doctor might adjust the dose, switch medications, or suggest additional lifestyle modifications. Patience is essential as slow, consistent weight loss is typical.

Do weight loss pens have benefits besides weight loss?

Yes. GLP-1 injections improve blood sugar control, reduce the risk of diabetes, and can positively affect blood pressure, cholesterol, and other metabolic factors.

Will I regain weight after stopping injections?

Typically, yes – appetite and metabolism tend to revert once treatment stops. Ongoing use or strict lifestyle changes are necessary to maintain weight loss.

Which is the most effective weight loss injection for weight loss?

Mounjaro typically offers the highest weight loss (20%+), followed by Wegovy (around 15%), with Ozempic at diabetes doses providing moderate weight loss.

Administration & Usage

How are GLP-1 medications administered?

They are administered as subcutaneous injections into the abdomen, thigh, or upper arm using easy-to-use pens.

Do weight loss injections hurt?

Typically, no. The needles are very fine and any discomfort is usually limited to a brief pinch or mild sting.

Where should I inject weight loss injections?

Inject into fatty tissue under the skin of your abdomen, thighs, or upper arm. Rotate injection sites weekly to minimise irritation.

What if I miss a dose?

Take the missed dose within 4–5 days. If more time has elapsed, skip the dose and resume your regular schedule. Never double the dose.

What if I take an overdose?

Contact your doctor immediately. Side effects such as increased nausea may occur temporarily, but serious complications are rare.

Alcohol and GLP-1 treatments?

Moderate alcohol consumption is generally acceptable; however, it can increase nausea and may affect blood sugar control, particularly for diabetics.

Special diet or exercise needed with weight loss injections?

There is no specific diet, but a healthy, balanced eating plan and regular exercise can enhance the results of your treatment.

How do I store weight loss pens?

Refrigerate the pens before use. Once in use, Ozempic can be stored for up to 56 days, Wegovy for 28 days, and Mounjaro for 21 days at room temperature.

Can I travel with injections?

Yes, you can travel with your injections. Keep them cool in your hand luggage using an insulated bag and cool packs, and adhere to the recommended storage timelines.

Can I switch Weight Loss Pen?

Switching should be done under your doctor’s supervision. Typically, you would stop one medication and start the other at its lowest dose.

Safety & Side Effects

Are GLP-1 treatments safe?

Generally, yes. Although mild stomach issues are common, serious risks such as pancreatitis or thyroid cancer are very rare.

What are common side effects of GLP-1 treatments?

Common side effects include nausea, stomach discomfort, diarrhoea, and constipation. These are usually temporary and tend to improve over time.

Do GLP-1 weight loss injections cause low blood sugar?

Low blood sugar is rare when used alone, but the risk increases if combined with insulin or sulfonylureas.

How do I manage nausea when taking weight loss injections?

To manage nausea, eat small, bland meals, stay well hydrated, try ginger or peppermint, and consult your doctor about adjusting your dose if necessary.

Will nausea fade over time?

Yes, nausea typically diminishes within a few weeks to months as your body adjusts to the treatment.

Can I use GLP-1 treatments with other diabetes medications?

Yes, GLP-1 treatments are commonly used alongside other diabetes medications; however, doses of insulin or sulfonylureas may need to be adjusted to avoid hypoglycaemia.

Product Comparison & Availability

What are the differences between injections?

Mounjaro: dual-hormone action with greater weight loss (20%+).
Wegovy: single-hormone, high-dose treatment for obesity (around 15% average weight loss).
Ozempic: primarily for diabetes at lower doses, offering moderate weight loss.

Are they available on the NHS?

Wegovy is available for obesity under NHS specialist criteria.
Ozempic is prescribed for diabetes only.
Mounjaro has been approved recently for both obesity and diabetes, with access initially limited to specialist clinics.

What do they cost privately?

Privately, Mounjaro costs around £139–£229 per month, with Wegovy and Ozempic priced similarly or slightly less. NHS availability remains restricted.

Can I buy online without a prescription?

No. Always purchase from reputable, registered online pharmacies that are registered with the GPHC, like Simple Online Pharmacy.

What alternatives can I consider and how do they compare?

Alternatives include lifestyle changes, older medications with limited effect, and bariatric surgery—which is highly effective but invasive. GLP-1 injections offer significant weight loss (15–20%) without the risks of surgery.

Compare

Treatment Comparison

SaxendaXenicalOrlistatMysimba
IngredientLiraglutideOrlistat 120mgOrlistat 120mgNaltrexone/Bupropion
MechanismRegulates appetiteReduces fat absorptionReduces fat absorptionRegulates appetite
DoseInjected once dailyOne three times daily with mealsOne three times daily with mealsGradually increased to 4 tablets daily

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Karim Nassar
Karim Nassar
Clinical Pharmacist
GPhC Registration: 2064752