GLP's ⏱ Half-life: Approximately 13 hours, supporting once-daily subcutaneous administration. Shorter than semaglutide (7 days), requiring daily rather than weekly dosing.

Liraglutide

Liraglutide (GLP-1 Receptor Agonist)

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Half-Life
Approximately 13 hours, supporting once-daily subcutaneous administration. Shorter than semaglutide (7 days), requiring daily rather than weekly dosing.
Mol. Weight
3751.20 g/mol

What is Liraglutide?

Liraglutide was one of the first long-acting GLP-1 receptor agonists to achieve widespread clinical use, paving the way for the newer generation of incretin-based compounds. It remains an important reference compound in metabolic research with one of the largest safety databases in its class.

Research Applications

Key research and clinical areas:

  • Glycemic control: LEAD trial program for type 2 diabetes
  • Weight management: SCALE trial program at 3mg daily dose
  • Cardiovascular: LEADER trial showing MACE reduction
  • Pediatric: Approved for adolescent obesity (age 12+)
  • NASH: Early research showing liver fat reduction

Dosage Information (Research Use)

Published clinical titration protocols:

  • Starting dose: 0.6 mg once daily for 1 week
  • Titration: Increase by 0.6 mg weekly to target dose
  • Glycemic target: 1.2-1.8 mg daily
  • Weight management target: 3.0 mg daily
  • Administration: Once daily, subcutaneous, any time of day

Research compound. See published LEAD and SCALE trial protocols for methodology.

Reconstitution & Handling

Similar reconstitution to semaglutide. Dissolve slowly with BAC water, roll gently, protect from light.

Half-Life & Pharmacokinetics

Approximately 13 hours, supporting once-daily subcutaneous administration. Shorter than semaglutide (7 days), requiring daily rather than weekly dosing.

Reported Observations in Literature

Clinical data reports dose-dependent GI effects: nausea (most common, ~40% at 3mg), vomiting, diarrhea, constipation. Gradual titration reduces incidence. Similar class warnings as semaglutide regarding pancreatitis and thyroid C-cell observations in animal models.

Key Research References

  • Marso SP, et al. “Liraglutide and Cardiovascular Outcomes in Type 2 Diabetes.” N Engl J Med. 2016 (LEADER)
  • Pi-Sunyer X, et al. “A Randomized, Controlled Trial of 3.0 mg of Liraglutide in Weight Management.” N Engl J Med. 2015 (SCALE)

How Liraglutide Works

Liraglutide is a GLP-1 receptor agonist with 97% structural homology to native human GLP-1. A C16 palmitic acid chain is attached via a glutamic acid spacer at position 26, enabling albumin binding that extends the half-life to approximately 13 hours — supporting once-daily dosing. Activates GLP-1 receptors in the pancreas (glucose-dependent insulin secretion), brain (appetite regulation), and GI tract (delayed gastric emptying). Less CNS penetrance than semaglutide based on published comparative data.

Research Findings

FDA-approved as Victoza (diabetes, up to 1.8mg daily) and Saxenda (weight management, 3mg daily). LEADER cardiovascular outcomes trial showed reduction in major cardiovascular events. The first GLP-1 agonist approved specifically for weight management. Predates semaglutide and tirzepatide — generally considered less potent but with a longer safety track record and well-characterized pharmacology.

Dosage & Administration

Published clinical titration protocols:

  • Starting dose: 0.6 mg once daily for 1 week
  • Titration: Increase by 0.6 mg weekly to target dose
  • Glycemic target: 1.2-1.8 mg daily
  • Weight management target: 3.0 mg daily
  • Administration: Once daily, subcutaneous, any time of day

Research compound. See published LEAD and SCALE trial protocols for methodology.

Safety & Side Effects

Clinical data reports dose-dependent GI effects: nausea (most common, ~40% at 3mg), vomiting, diarrhea, constipation. Gradual titration reduces incidence. Similar class warnings as semaglutide regarding pancreatitis and thyroid C-cell observations in animal models.

Important: All safety information is derived from published research, primarily animal studies. No controlled human clinical trial data exists unless explicitly noted. This compound is sold for research purposes only.

Quick Facts

Sequence Modified GLP-1(7-37) analog with C16 fatty acid (palmitic acid) via glutamic acid spacer
Molecular Weight 3751.20 g/mol
Half-Life Approximately 13 hours, supporting once-daily subcutaneous administration. Shorter than semaglutide (7 days), requiring daily rather than weekly dosing.
Available Sizes 3mg, 5mg
Storage Lyophilized: -20°C. Reconstituted: 2-8°C, protect from light, use within 30 days.

Key Research References

  • Marso SP, et al. "Liraglutide and Cardiovascular Outcomes in Type 2 Diabetes." N Engl J Med. 2016 (LEADER)
  • Pi-Sunyer X, et al. "A Randomized, Controlled Trial of 3.0 mg of Liraglutide in Weight Management." N Engl J Med. 2015 (SCALE)

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