Department of Genomic Medicine, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Koto-ku, Tokyo; Department of Clinical Genetic Oncology, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Koto-ku, Tokyo.
Department of Medical Oncology, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Koto-ku, Tokyo; Department of Advanced Medical Development, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Koto-ku, Tokyo.
ESMO Open. 2024 Aug;9(8):103659. doi: 10.1016/j.esmoop.2024.103659. Epub 2024 Aug 12.
Adolescents and young adults (AYAs) represent a small proportion of patients with cancer. The genomic profiles of AYA patients with cancer are not well-studied, and outcomes of genome-matched therapies remain largely unknown.
We investigated differences between Japanese AYA and older adult (OA) patients in genomic alterations, therapeutic evidence levels, and genome-matched therapy usage by cancer type. We also assessed treatment outcomes.
AYA patients accounted for 8.3% of 876 cases. Microsatellite instability-high and/or tumor mutation burden was less common in AYA patients (1.4% versus 7.7% in OA; P = 0.05). However, BRCA1 alterations were more common in AYA patients with breast cancer (27.3% versus 1.7% in OA; P = 0.01), as were MYC alterations in AYA patients with colorectal cancer (23.5% versus 5.8% in OA; P = 0.02) and sarcoma (31.3% versus 3.4% in OA; P = 0.01). Genome-matched therapy use was similar between groups, with overall survival tending to improve in both. However, in AYA patients, the small number of patients prevented statistical significance. Comprehensive genomic profiling-guided genome-matched therapy yielded encouraging results, with progression-free survival of 9.0 months in AYA versus 3.7 months in OA patients (P = 0.59).
Our study suggests that tailored therapeutic approaches can benefit cancer patients regardless of age.
青少年和年轻人(AYA)在癌症患者中占比较小。AYA 癌症患者的基因组特征尚未得到充分研究,基于基因组匹配的治疗效果也知之甚少。
我们研究了日本 AYA 和老年(OA)患者在基因组改变、治疗证据水平以及按癌症类型使用基因组匹配治疗方面的差异。我们还评估了治疗结果。
AYA 患者占 876 例患者的 8.3%。微卫星不稳定性高和/或肿瘤突变负担在 AYA 患者中较少见(1.4%比 OA 患者的 7.7%;P=0.05)。然而,BRCA1 改变在 AYA 乳腺癌患者中更为常见(27.3%比 OA 患者的 1.7%;P=0.01),在 AYA 结直肠癌患者中 MYC 改变更为常见(23.5%比 OA 患者的 5.8%;P=0.02),在 AYA 肉瘤患者中更为常见(31.3%比 OA 患者的 3.4%;P=0.01)。两组之间的基因组匹配治疗使用情况相似,总体生存率均有提高。然而,在 AYA 患者中,患者数量较少,无法得出统计学意义。综合基因组分析指导下的基因组匹配治疗取得了令人鼓舞的结果,AYA 患者的无进展生存期为 9.0 个月,而 OA 患者为 3.7 个月(P=0.59)。
我们的研究表明,无论年龄大小,针对特定患者的治疗方法都可以使癌症患者受益。