Weight-management drug Saxenda gets approval from FDA


The U.S. Food and Drug Administration have approved Saxenda (liraglutide [rDNA origin] injection) as a treatment option for chronic weight management in addition to a reduced-calorie diet and physical activity. 

The new drug  is a glucagon-like peptide-1 (GLP-1) receptor agonist and should not be used in combination with any other drug belonging to this class, including Victoza, a treatment for type 2 diabetes as both Saxenda and Victoza contain the same active ingredient (liraglutide) at different doses (3 mg and 1.8 mg, respectively). 




The drug got approval for using  in adults with a body mass index (BMI) ranging from 27 to 30 or greater (overweight to obesity conditons) who are suffering from any of the weight-related condition such as hypertension, type 2 diabetes, or high cholesterol.

The new drug  is a glucagon-like peptide-1 (GLP-1) receptor agonist and should not be used in combination with any other drug belonging to this class, including Victoza, a treatment for type 2 diabetes as both Saxenda and Victoza contain the same active ingredient (liraglutide) at different doses (3 mg and 1.8 mg, respectively).

The safety and effectiveness of Saxenda were evaluated in three clinical trials that included approximately 4,800 obese and overweight patients with and without significant weight-related conditions.There was an average weight loss of 4.5 percent from baseline compared to treatment with a placebo (inactive pill) at one year in a clinical trial that enrolled non diabetic patient. In this trial, 62 percent of patients treated with Saxenda lost at least 5 percent of their body weight compared with 34 percent of patients treated with placebo. 


In  another clinical trial where type 2 diabetic patients were enrolled ,the patients had an average weight loss of 3.7 percent from baseline compared to treatment with placebo at one year. In this trial, 49 percent of patients treated with Saxenda lost at least 5 percent of their body weight compared with 16 percent of patients treated with placebo.

Pancreatitis, gallbladder disease, renal impairment, and suicidal thoughts are the serious side effects reported in patients treated with Saxenda. The drug should be discontinued in patients who are experiencing a sustained increase in resting heart rate as it can  raise heart rate .


During clinical trial nausea, diarrhea, constipation, vomiting, low blood sugar (hypoglycemia), and decreased appetite were observed as most common  side effects of patients treated with Saxenda.



Saxenda has a boxed warning stating that tumors of the thyroid gland (thyroid C-cell tumors) have been observed in rodent studies with Saxenda but that it is unknown whether Saxenda causes thyroid C-cell tumors, including a type of thyroid cancer called medullary thyroid carcinoma (MTC), in humans. Saxenda should not be used in patients with a personal or family history of MTC or in patients with multiple endocrine neoplasia syndrome type 2 (a disease in which patients have tumors in more than one gland in their body, which predisposes them to MTC).The FDA had asked for  post-marketing studies for Saxenda to evaluate dosage, safety and efficacy in pediatric patients,potential risk of mTC and Breast cancer.

In addition, the cardiovascular safety of liraglutide is being investigated in an ongoing cardiovascular outcomes trial. 

The drug is being manufactured and distribuited by Novo Nordisk.



(Courtesy:US FDA)





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