在BRAF异常胰腺癌中,RAF抑制剂再挑战疗法:RE-RAFFLE研究
Blessie Elizabeth Nelson1, Jason Roszik2, Jibran Ahmed3
1Department of Investigational Cancer Therapeutics, University of Texas MD Anderson Cancer Center, Houston, TX, USA. benelson1@mdanderson.org.
Molecular cancer
|March 27, 2024
概括
在初始治疗后使用RAF抑制剂的复发性黑色素瘤患者显示18.1%的应答率和54.5%的临床益处. 观察到持久的反应,这表明RAF抑制剂的重新挑战是RAF改变癌症的可行策略.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 癌症治疗方法 癌症治疗方法
背景情况:
- 在包括黑色素瘤在内的各种癌症中,RAF路径的改变很常见.
- BRAF抑制剂是标准治疗方法,但获得的耐药性限制了疗效.
- 用后续的抑制剂重新挑战RAF路径可能会克服抵抗.
研究的目的:
- 评估RAF抑制剂治疗患者在先前使用BRAF抑制剂治疗后的疗效和临床益处.
- 在重新挑战环境中评估应答率,临床益处率,无进展生存率和整体生存率.
主要方法:
- 对44名RAF改变瘤的患者进行了回顾性观察性研究.
- 患者在一线RAF抑制剂治疗后接受了第二种RAF抑制剂 (单疗或组合疗法).
- 瘤类型包括黑色素瘤,甲状腺,卵巢,胆管癌和形星瘤.
主要成果:
- 总体响应率 (ORR) 为18.1%,在多种瘤类型中观察到部分响应 (PR).
- 临床益处率 (CBR) 为54.5%,超过30%的患者实现了持久反应 (PR/SD>6个月).
- 第二种RAF抑制剂的中位数无进展生存期 (PFS) 为2.7个月,但响应者的中位数PFS-2改善至12.8个月. 重新治疗后的平均整体存活 (OS) 为15.5个月.
结论:
- RAF 抑制剂再试剂在RAF 改变的癌症患者中表现出临床活性和益处,这些患者先前接受过BRAF 抑制剂治疗.
- 持久的反应表明,在一小部分患者中,长期控制疾病的潜力.
- 需要进一步的前性研究来证实这些发现,并探索最佳组合策略.
更多相关视频
07:49Characterize Disease-related Mutants of RAF Family Kinases by Using a Set of Practical and Feasible Methods
Published on: July 17, 2019
6.0K
06:44Author Spotlight: Integrating BRET-Based Assays and Rare Mutation Analysis to Decipher RAF Kinase Regulation in Live Cells
Published on: March 1, 2024
1.0K
相关概念视频
Targeted Cancer Therapies
7.6K
The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against...
There are several types of targeted therapies against...
7.6K
Combination Therapies and Personalized Medicine
4.9K
Combining two or more treatment methods increases the life span of cancer patients while reducing damage to vital organs or tissue from the overuse of a single treatment. Combination therapy also targets different cancer-inducing pathways, thus reducing the chances of developing resistance to treatment.
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
4.9K
