エクセナチド週1回対リラグルチド1日1回2型糖尿病患者 (期間-6):ランダム化,オープンラベル研究
John B Buse1, Michael Nauck, Thomas Forst
1University of North Carolina School of Medicine, Chapel Hill, NC, USA.
Lancet (London, England)
|November 13, 2012
まとめ
リラグルチド1日1回とエクセナチド1週1回の両方が,2型糖尿病のコントロールを改善しました. リラグルチドはHbA1cの減少が大きいが,吐き気や嘔吐の副作用が多かった.
科学分野:
- エンドクリノロジー エンドクリノロジー
- メタボリック疾患
- 薬理学 薬理学とは
背景:
- エキセナチドおよびリラグルチドのようなグルカゴン類ペプチド-1受容体アゴニスト (GLP-1RA) は,2型糖尿病の治療法として確立されており,血糖コントロールを改善し,体重減少を促進します.
- この研究では,2型糖尿病の患者において,週1回のエクセナチドと1日1回のリラグルチドの有効性と安全性を直接比較しています.
研究 の 目的:
- 2型糖尿病患者の週1回エクセナチドと1日1回リラグルチドの有効性と安全性を比較する.
- 26週間の治療期間におけるプライマリエンドポイントとして,グリケイドヘモグロビン (HbA1c) の変化を評価する.
主な方法:
- 19カ国の2型糖尿病患者912人を対象としたオープンラベル,ランダム化,並列グループ研究です.
- 参加者は,1.8mgのリラグルチドを1日1回,または2mgのエクセナチドを1週間に1回,口服抗高血糖剤と併用した.
- 主な有効性エンドポイントは,HbA1cのベースラインから26週までの変化であり,治療への意図によるアプローチを使用して分析されました.
主要な成果:
- リラグルチドは,エクセナチド (-1.28%) と比較してHbA1c (-1.48%) をより大きく低下させることが示されましたが,この違いは,事前に定義された劣等感のない基準を満たしていません.
- 副作用,特に吐き気,下痢,嘔吐は,エクセナチドよりもリラグルチドでより頻繁に見られました.
- 副作用による治療中止は,エクセナチド群 (3%) と比較してリラグルチド群 (5%) で高かった.
結論:
- リラグルチドとエクセナチドは,2型糖尿病患者の血糖コントロールを効果的に改善します.
- リラグルチドはより大きなHbA1c減少を達成したが,エクセナチドはよりよい胃腸耐受性と,より頻繁な投与と関連していた.
- これらの発見は,有効性,注射頻度,耐受性に関する患者特有のニーズに基づいてGLP-1RAを選択する際に臨床医に貴重な洞察を提供します.
関連する概念動画
Glucagon-like Receptor Agonists
Incretins include glucagon-like peptide-1 (GLP-1) and glucose-dependent insulinotropic polypeptide (GIP), which stimulate insulin secretion post-meals. In type 2 diabetes, GIP's efficacy is reduced, making GLP-1 a viable drug target. GIP originates from preproGIP.
GLP-1, when administered in high doses intravenously, triggers insulin secretion, inhibits glucagon release, slows gastric emptying, reduces food intake, and restores normal insulin secretion. However, its rapid inactivation by the...
GLP-1, when administered in high doses intravenously, triggers insulin secretion, inhibits glucagon release, slows gastric emptying, reduces food intake, and restores normal insulin secretion. However, its rapid inactivation by the...
Oral Hypoglycemic Agents: Glinides
Repaglinide (Prandin) and Nateglinide (Starlix), known as glinides, are oral insulin secretagogues that stimulate insulin release from pancreatic β cells by closing the ATP-sensitive potassium channels (KATP channel). Repaglinide controls insulin release from pancreatic β cells by managing potassium efflux. It shares two binding sites with sulfonylureas and also has a unique site, indicating overlapping mechanisms of action. With a rapid onset and a 4-7 hour duration, it effectively manages...
Insulin: Dosing Regimen and Adverse Effects
Insulin-replacement therapy usually includes both long-acting insulin (basal) and short-acting insulin (to cater to postprandial needs). In a diverse group of type 1 diabetes patients, the average daily insulin dose is typically 0.5-0.7 units/kg body weight. However, obese patients and pubertal adolescents may need more due to insulin resistance.
The basal dose constitutes about 40%-50% of the total daily dose, with the rest as premeal insulin. The mealtime insulin dose should mirror...
The basal dose constitutes about 40%-50% of the total daily dose, with the rest as premeal insulin. The mealtime insulin dose should mirror...
Dipeptidyl Peptidase 4 Inhibitors
Dipeptidyl peptidase 4 (DPP-4) is a serine protease widely distributed in the body. It's involved in the inactivation of GLP-1 and GIP hormones, which are crucial for insulin regulation. DPP-4 inhibitors, such as sitagliptin (Januvia), saxagliptin (Onglyza), linagliptin (Tradjenta), alogliptin (Nesina), and vildagliptin (Galvus), help increase the proportion of active GLP-1, enhancing insulin secretion. These inhibitors work by competitively binding to DPP-4. This binding causes a significant...
Oral Hypoglycemic Agents: Biguanides and Glitazones
Biguanides, particularly metformin (Glucophage), are insulin sensitizers that enhance glucose uptake, thereby reducing insulin resistance. Unlike sulfonylureas, metformin doesn't prompt insulin secretion, which helps to curb hypoglycemia risk. Metformin is beneficial in treating conditions like polycystic ovary syndrome due to its insulin-resistance reduction capability. The drug's primary action involves curtailing hepatic gluconeogenesis, a significant contributor to high blood glucose levels...
Insulin Formulations: Types and Delivery
Insulin preparations are categorized by their duration of action into short-acting and long-acting types. Two strategies are used to modify insulin's absorption and pharmacokinetic profile: slowing the absorption post-subcutaneous injection, or altering human insulin's amino acid sequence or protein structure. These changes retain the insulin's ability to bind to the insulin receptor, but alter its behavior in solution or after injection.
Short-acting insulins are divided into rapid-acting...
Short-acting insulins are divided into rapid-acting...

