“KRAS突变”的版本间的差异
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| − | <strong> | + | <strong>HRS-4642</strong> 是由江苏恒瑞医药(Hengrui Medicine)自主研发的一款高选择性、<strong>非共价</strong>(Non-covalent)的 <strong>KRAS G12D</strong> 抑制剂。KRAS G12D 是胰腺癌、结直肠癌和部分肺癌中最常见的 KRAS 突变亚型。HRS-4642 采用了独特的<strong>脂质体</strong>(Liposome)剂型设计,以解决药物溶解度和体内分布问题,是全球范围内首个进入临床阶段的 KRAS G12D 抑制剂。目前,该药物正在全球多地开展针对实体瘤的 I/II 期临床试验,与美国的 MRTX1133 和 RMC-9805 等药物展开激烈的同类最佳(Best-in-Class)竞争。 |
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| − | <div style="font-size: 1.2em; font-weight: bold; letter-spacing: 1.2px;"> | + | <div style="font-size: 1.2em; font-weight: bold; letter-spacing: 1.2px;">HRS-4642</div> |
| − | <div style="font-size: 0.7em; opacity: 0.85; margin-top: 4px; white-space: nowrap;"> | + | <div style="font-size: 0.7em; opacity: 0.85; margin-top: 4px; white-space: nowrap;">KRAS G12D Inhibitor (点击展开)</div> |
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| − | [[Image: | + | [[Image:HRS-4642_structure_concept.jpg|100px|脂质体包裹的小分子抑制剂示意图]] |
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| − | <div style="font-size: 0.8em; color: #64748b; margin-top: 12px; font-weight: 600;"> | + | <div style="font-size: 0.8em; color: #64748b; margin-top: 12px; font-weight: 600;">研发代号:HRS-4642</div> |
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<table style="width: 100%; border-spacing: 0; border-collapse: collapse; font-size: 0.85em;"> | <table style="width: 100%; border-spacing: 0; border-collapse: collapse; font-size: 0.85em;"> | ||
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| − | <th style="text-align: left; padding: 6px 12px; background-color: #f1f5f9; color: #475569; border-bottom: 1px solid #e2e8f0; width: 40%;"> | + | <th style="text-align: left; padding: 6px 12px; background-color: #f1f5f9; color: #475569; border-bottom: 1px solid #e2e8f0; width: 40%;">研发机构</th> |
| − | <td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #0f172a;"> | + | <td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #0f172a;">[[恒瑞医药]] (Hengrui)</td> |
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| − | <th style="text-align: left; padding: 6px 12px; background-color: #f1f5f9; color: #475569; border-bottom: 1px solid #e2e8f0;"> | + | <th style="text-align: left; padding: 6px 12px; background-color: #f1f5f9; color: #475569; border-bottom: 1px solid #e2e8f0;">核心靶点</th> |
| − | <td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #1e40af;"> | + | <td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #1e40af;">[[KRAS G12D]]</td> |
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| − | <th style="text-align: left; padding: 6px 12px; background-color: #f1f5f9; color: #475569; border-bottom: 1px solid #e2e8f0;"> | + | <th style="text-align: left; padding: 6px 12px; background-color: #f1f5f9; color: #475569; border-bottom: 1px solid #e2e8f0;">头号竞品</th> |
| − | <td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #b91c1c;"> | + | <td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #b91c1c;">[[MRTX1133]] (Mirati/BMS)</td> |
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| − | <th style="text-align: left; padding: 6px 12px; background-color: #f1f5f9; color: #475569; border-bottom: 1px solid #e2e8f0;"> | + | <th style="text-align: left; padding: 6px 12px; background-color: #f1f5f9; color: #475569; border-bottom: 1px solid #e2e8f0;">其他竞品</th> |
| − | <td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #0f172a;"> | + | <td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #0f172a;">[[RMC-9805]], [[ASP3082]]</td> |
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| − | <th style="text-align: left; padding: 6px 12px; background-color: #f1f5f9; color: #475569; border-bottom: 1px solid #e2e8f0;"> | + | <th style="text-align: left; padding: 6px 12px; background-color: #f1f5f9; color: #475569; border-bottom: 1px solid #e2e8f0;">药物剂型</th> |
| − | <td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #1e40af;">[[ | + | <td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #1e40af;">[[脂质体]]注射液</td> |
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| − | <th style="text-align: left; padding: 6px 12px; background-color: #f1f5f9; color: #475569;"> | + | <th style="text-align: left; padding: 6px 12px; background-color: #f1f5f9; color: #475569; border-bottom: 1px solid #e2e8f0;">给药方式</th> |
| − | <td style="padding: 6px 12px; color: #0f172a;">[[ | + | <td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #0f172a;">静脉注射 (IV)</td> |
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| + | <tr> | ||
| + | <th style="text-align: left; padding: 6px 12px; background-color: #f1f5f9; color: #475569;">特殊AE</th> | ||
| + | <td style="padding: 6px 12px; color: #b91c1c;">[[高脂血症]] (载体相关)</td> | ||
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| − | <h2 style="background: #f1f5f9; color: #0f172a; padding: 10px 18px; border-radius: 0 6px 6px 0; font-size: 1.25em; margin-top: 40px; border-left: 6px solid #0f172a; font-weight: bold;"> | + | <h2 style="background: #f1f5f9; color: #0f172a; padding: 10px 18px; border-radius: 0 6px 6px 0; font-size: 1.25em; margin-top: 40px; border-left: 6px solid #0f172a; font-weight: bold;">分子机制:攻克“最难突变”</h2> |
<p style="margin: 15px 0; text-align: justify;"> | <p style="margin: 15px 0; text-align: justify;"> | ||
| − | KRAS | + | KRAS G12D 是 KRAS 家族中突变频率最高的亚型(约占所有 KRAS 突变的 40%),但药物开发难度远高于 G12C。HRS-4642 的机制创新点在于: |
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<ul style="padding-left: 25px; color: #334155;"> | <ul style="padding-left: 25px; color: #334155;"> | ||
| − | <li style="margin-bottom: 12px;"><strong> | + | <li style="margin-bottom: 12px;"><strong>非共价结合 (Non-covalent Binding):</strong> |
| − | <br> | + | <br>G12D 突变将甘氨酸变为<strong>天冬氨酸</strong>(Asp),缺乏半胱氨酸的巯基,无法像 Sotorasib 那样形成共价键。HRS-4642 通过强效的非共价相互作用,占据 KRAS 蛋白的变构口袋,将其锁定在非活性的 GDP 结合状态,从而阻断下游 MAPK/ERK 通路。</li> |
| − | <li style="margin-bottom: 12px;"><strong> | + | <li style="margin-bottom: 12px;"><strong>脂质体递送 (Liposomal Delivery):</strong> |
| − | <br> | + | <br>为了提高药物的溶解度、稳定性和在肿瘤组织的富集(EPR效应),HRS-4642 被封装在脂质体中。这种特殊的剂型使其在药代动力学上表现出长半衰期,但也带来了特定的不良反应(如高脂血症)。</li> |
</ul> | </ul> | ||
| − | <h2 style="background: #f1f5f9; color: #0f172a; padding: 10px 18px; border-radius: 0 6px 6px 0; font-size: 1.25em; margin-top: 40px; border-left: 6px solid #0f172a; font-weight: bold;"> | + | <h2 style="background: #f1f5f9; color: #0f172a; padding: 10px 18px; border-radius: 0 6px 6px 0; font-size: 1.25em; margin-top: 40px; border-left: 6px solid #0f172a; font-weight: bold;">全球竞品格局:G12D 的争夺战</h2> |
<div style="background-color: #f0f9ff; border-left: 5px solid #1e40af; padding: 15px 20px; margin: 20px 0; border-radius: 4px;"> | <div style="background-color: #f0f9ff; border-left: 5px solid #1e40af; padding: 15px 20px; margin: 20px 0; border-radius: 4px;"> | ||
| − | <h3 style="margin-top: 0; color: #1e40af; font-size: 1.1em;"> | + | <h3 style="margin-top: 0; color: #1e40af; font-size: 1.1em;">差异化竞争</h3> |
<p style="margin-bottom: 0; text-align: justify; font-size: 0.95em; color: #334155;"> | <p style="margin-bottom: 0; text-align: justify; font-size: 0.95em; color: #334155;"> | ||
| − | + | G12D 抑制剂的研发主要分为三大路线:非共价小分子、PROTAC 降解剂和泛 RAS 抑制剂。HRS-4642 属于<strong>非共价小分子</strong>路线,其主要优势在于研发进度(全球首个入组)。 | |
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<tr style="background-color: #f8fafc; border-bottom: 2px solid #0f172a;"> | <tr style="background-color: #f8fafc; border-bottom: 2px solid #0f172a;"> | ||
| − | <th style="padding: 12px; border: 1px solid #cbd5e1; color: #0f172a; width: 20%;"> | + | <th style="padding: 12px; border: 1px solid #cbd5e1; color: #0f172a; width: 20%;">药物名称</th> |
| − | <th style="padding: 12px; border: 1px solid #cbd5e1; color: #475569;"> | + | <th style="padding: 12px; border: 1px solid #cbd5e1; color: #475569;">研发企业</th> |
| − | <th style="padding: 12px; border: 1px solid #cbd5e1; color: #1e40af;"> | + | <th style="padding: 12px; border: 1px solid #cbd5e1; color: #1e40af;">技术路线</th> |
| + | <th style="padding: 12px; border: 1px solid #cbd5e1; color: #475569;">给药方式</th> | ||
| + | </tr> | ||
| + | <tr> | ||
| + | <td style="padding: 10px; border: 1px solid #cbd5e1; font-weight: 600;">HRS-4642</td> | ||
| + | <td style="padding: 10px; border: 1px solid #cbd5e1;">恒瑞医药 (中国)</td> | ||
| + | <td style="padding: 10px; border: 1px solid #cbd5e1;">脂质体、非共价</td> | ||
| + | <td style="padding: 10px; border: 1px solid #cbd5e1;">静脉注射 (IV)</td> | ||
</tr> | </tr> | ||
<tr> | <tr> | ||
| − | <td style="padding: 10px; border: 1px solid #cbd5e1; font-weight: 600;"> | + | <td style="padding: 10px; border: 1px solid #cbd5e1; font-weight: 600; background-color: #fee2e2;">MRTX1133</td> |
| − | <td style="padding: 10px; border: 1px solid #cbd5e1;"> | + | <td style="padding: 10px; border: 1px solid #cbd5e1; background-color: #fee2e2;">Mirati / BMS</td> |
| − | <td style="padding: 10px; border: 1px solid #cbd5e1; color: # | + | <td style="padding: 10px; border: 1px solid #cbd5e1; background-color: #fee2e2;">长效、非共价</td> |
| + | <td style="padding: 10px; border: 1px solid #cbd5e1; background-color: #fee2e2;">口服 (PO)</td> | ||
</tr> | </tr> | ||
<tr> | <tr> | ||
| − | <td style="padding: 10px; border: 1px solid #cbd5e1; font-weight: 600;"> | + | <td style="padding: 10px; border: 1px solid #cbd5e1; font-weight: 600;">RMC-9805</td> |
| − | <td style="padding: 10px; border: 1px solid #cbd5e1;"> | + | <td style="padding: 10px; border: 1px solid #cbd5e1;">Revolution Med</td> |
| − | <td style="padding: 10px; border: 1px solid #cbd5e1;"> | + | <td style="padding: 10px; border: 1px solid #cbd5e1;">RAS(ON) G12D 选择性</td> |
| + | <td style="padding: 10px; border: 1px solid #cbd5e1;">口服 (PO)</td> | ||
</tr> | </tr> | ||
<tr> | <tr> | ||
| − | <td style="padding: 10px; border: 1px solid #cbd5e1; font-weight: 600;"> | + | <td style="padding: 10px; border: 1px solid #cbd5e1; font-weight: 600;">ASP3082</td> |
| − | <td style="padding: 10px; border: 1px solid #cbd5e1;"> | + | <td style="padding: 10px; border: 1px solid #cbd5e1;">Astellas</td> |
| − | <td style="padding: 10px; border: 1px solid #cbd5e1;"> | + | <td style="padding: 10px; border: 1px solid #cbd5e1;">PROTAC 蛋白降解剂</td> |
| + | <td style="padding: 10px; border: 1px solid #cbd5e1;">静脉注射 (IV)</td> | ||
</tr> | </tr> | ||
</table> | </table> | ||
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<p style="margin: 12px 0; border-bottom: 1px solid #e2e8f0; padding-bottom: 10px;"> | <p style="margin: 12px 0; border-bottom: 1px solid #e2e8f0; padding-bottom: 10px;"> | ||
| − | [1] <strong> | + | [1] <strong>Zhou C, et al. (2023).</strong> <em>First-in-human phase 1 study of HRS-4642, a KRAS G12D inhibitor, in patients with advanced solid tumors harboring KRAS G12D mutation.</em> <strong>[[ESMO Asia Congress 2023]]</strong>. <br> |
| − | <span style="color: #475569;">[点评] | + | <span style="color: #475569;">[点评]:首次在国际大会上披露了 HRS-4642 的人体临床数据,证实了其安全性和初步疗效,确立了其全球首发的地位。</span> |
</p> | </p> | ||
<p style="margin: 12px 0; border-bottom: 1px solid #e2e8f0; padding-bottom: 10px;"> | <p style="margin: 12px 0; border-bottom: 1px solid #e2e8f0; padding-bottom: 10px;"> | ||
| − | [2] <strong> | + | [2] <strong>Wang X, et al. (2022).</strong> <em>Identification of MRTX1133, a Noncovalent, Potent, and Selective KRASG12D Inhibitor.</em> <strong>[[Journal of Medicinal Chemistry]]</strong>. <br> |
| − | <span style="color: #475569;">[点评] | + | <span style="color: #475569;">[点评]:详细阐述了最强竞品 MRTX1133 的药物化学设计,该药物目前被视为 G12D 领域的标杆分子。</span> |
</p> | </p> | ||
<p style="margin: 12px 0; border-bottom: 1px solid #e2e8f0; padding-bottom: 10px;"> | <p style="margin: 12px 0; border-bottom: 1px solid #e2e8f0; padding-bottom: 10px;"> | ||
| − | [3] <strong> | + | [3] <strong>Jiangsu HengRui Medicine Co., Ltd. (2024).</strong> <em>A Study of HRS-4642 in Patients With Advanced Solid Tumors (NCT06385678).</em> <strong>[[ClinicalTrials.gov]]</strong>. <br> |
| − | <span style="color: #475569;">[点评] | + | <span style="color: #475569;">[点评]:注册临床试验信息,展示了其最新的联合治疗策略(联合化疗、免疫治疗)布局。</span> |
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<div style="background-color: #eff6ff; color: #1e40af; padding: 8px 15px; font-weight: bold; text-align: center; border-bottom: 1px solid #dbeafe;"> | <div style="background-color: #eff6ff; color: #1e40af; padding: 8px 15px; font-weight: bold; text-align: center; border-bottom: 1px solid #dbeafe;"> | ||
| − | + | HRS-4642 · 知识图谱 | |
</div> | </div> | ||
<table style="width: 100%; border-collapse: collapse; background-color: #ffffff;"> | <table style="width: 100%; border-collapse: collapse; background-color: #ffffff;"> | ||
<tr style="border-bottom: 1px solid #f1f5f9;"> | <tr style="border-bottom: 1px solid #f1f5f9;"> | ||
| − | <td style="width: 85px; background-color: #f8fafc; color: #334155; font-weight: 600; padding: 10px 12px; text-align: right; vertical-align: middle;"> | + | <td style="width: 85px; background-color: #f8fafc; color: #334155; font-weight: 600; padding: 10px 12px; text-align: right; vertical-align: middle;">核心靶点</td> |
| − | <td style="padding: 10px 15px; color: #334155;">[[ | + | <td style="padding: 10px 15px; color: #334155;">[[KRAS G12D]] • [[RAS通路]] • [[非共价抑制]]</td> |
</tr> | </tr> | ||
<tr style="border-bottom: 1px solid #f1f5f9;"> | <tr style="border-bottom: 1px solid #f1f5f9;"> | ||
| − | <td style="width: 85px; background-color: #f8fafc; color: #334155; font-weight: 600; padding: 10px 12px; text-align: right; vertical-align: middle;"> | + | <td style="width: 85px; background-color: #f8fafc; color: #334155; font-weight: 600; padding: 10px 12px; text-align: right; vertical-align: middle;">竞品药物</td> |
| − | <td style="padding: 10px 15px; color: #334155;">[[ | + | <td style="padding: 10px 15px; color: #334155;">[[MRTX1133]] • [[RMC-9805]] • [[ASP3082]] • [[RMC-6236]]</td> |
</tr> | </tr> | ||
<tr style="border-bottom: 1px solid #f1f5f9;"> | <tr style="border-bottom: 1px solid #f1f5f9;"> | ||
| − | <td style="width: 85px; background-color: #f8fafc; color: #334155; font-weight: 600; padding: 10px 12px; text-align: right; vertical-align: middle;"> | + | <td style="width: 85px; background-color: #f8fafc; color: #334155; font-weight: 600; padding: 10px 12px; text-align: right; vertical-align: middle;">核心适应症</td> |
| − | <td style="padding: 10px 15px; color: #334155;">[[ | + | <td style="padding: 10px 15px; color: #334155;">[[胰腺癌]] (PDAC) • [[结直肠癌]] (CRC) • [[卵巢癌]]</td> |
</tr> | </tr> | ||
<tr> | <tr> | ||
| − | <td style="width: 85px; background-color: #f8fafc; color: #334155; font-weight: 600; padding: 10px 12px; text-align: right; vertical-align: middle;"> | + | <td style="width: 85px; background-color: #f8fafc; color: #334155; font-weight: 600; padding: 10px 12px; text-align: right; vertical-align: middle;">技术特点</td> |
| − | <td style="padding: 10px 15px; color: #334155;">[[ | + | <td style="padding: 10px 15px; color: #334155;">[[脂质体药物]] • [[高脂血症]] (AE) • [[静脉给药]]</td> |
</tr> | </tr> | ||
</table> | </table> | ||
2026年1月28日 (三) 13:50的最新版本
HRS-4642 是由江苏恒瑞医药(Hengrui Medicine)自主研发的一款高选择性、非共价(Non-covalent)的 KRAS G12D 抑制剂。KRAS G12D 是胰腺癌、结直肠癌和部分肺癌中最常见的 KRAS 突变亚型。HRS-4642 采用了独特的脂质体(Liposome)剂型设计,以解决药物溶解度和体内分布问题,是全球范围内首个进入临床阶段的 KRAS G12D 抑制剂。目前,该药物正在全球多地开展针对实体瘤的 I/II 期临床试验,与美国的 MRTX1133 和 RMC-9805 等药物展开激烈的同类最佳(Best-in-Class)竞争。
分子机制:攻克“最难突变”
KRAS G12D 是 KRAS 家族中突变频率最高的亚型(约占所有 KRAS 突变的 40%),但药物开发难度远高于 G12C。HRS-4642 的机制创新点在于:
- 非共价结合 (Non-covalent Binding):
G12D 突变将甘氨酸变为天冬氨酸(Asp),缺乏半胱氨酸的巯基,无法像 Sotorasib 那样形成共价键。HRS-4642 通过强效的非共价相互作用,占据 KRAS 蛋白的变构口袋,将其锁定在非活性的 GDP 结合状态,从而阻断下游 MAPK/ERK 通路。 - 脂质体递送 (Liposomal Delivery):
为了提高药物的溶解度、稳定性和在肿瘤组织的富集(EPR效应),HRS-4642 被封装在脂质体中。这种特殊的剂型使其在药代动力学上表现出长半衰期,但也带来了特定的不良反应(如高脂血症)。
全球竞品格局:G12D 的争夺战
差异化竞争
G12D 抑制剂的研发主要分为三大路线:非共价小分子、PROTAC 降解剂和泛 RAS 抑制剂。HRS-4642 属于非共价小分子路线,其主要优势在于研发进度(全球首个入组)。
| 药物名称 | 研发企业 | 技术路线 | 给药方式 |
|---|---|---|---|
| HRS-4642 | 恒瑞医药 (中国) | 脂质体、非共价 | 静脉注射 (IV) |
| MRTX1133 | Mirati / BMS | 长效、非共价 | 口服 (PO) |
| RMC-9805 | Revolution Med | RAS(ON) G12D 选择性 | 口服 (PO) |
| ASP3082 | Astellas | PROTAC 蛋白降解剂 | 静脉注射 (IV) |
学术参考文献 [Academic Review]
[1] Zhou C, et al. (2023). First-in-human phase 1 study of HRS-4642, a KRAS G12D inhibitor, in patients with advanced solid tumors harboring KRAS G12D mutation. ESMO Asia Congress 2023.
[点评]:首次在国际大会上披露了 HRS-4642 的人体临床数据,证实了其安全性和初步疗效,确立了其全球首发的地位。
[2] Wang X, et al. (2022). Identification of MRTX1133, a Noncovalent, Potent, and Selective KRASG12D Inhibitor. Journal of Medicinal Chemistry.
[点评]:详细阐述了最强竞品 MRTX1133 的药物化学设计,该药物目前被视为 G12D 领域的标杆分子。
[3] Jiangsu HengRui Medicine Co., Ltd. (2024). A Study of HRS-4642 in Patients With Advanced Solid Tumors (NCT06385678). ClinicalTrials.gov.
[点评]:注册临床试验信息,展示了其最新的联合治疗策略(联合化疗、免疫治疗)布局。