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Background <p>Ovarian cancer (OC) is a highly lethal gynecological cancer. Olaparib maintenance therapy was effective and well-tolerated in pivotal RCTs. However, nationwide real-world safety information is limited in China. This multicenter, prospective, observational drug intensive monitoring study monitored the safety of olaparib in a largest-to-date, real-world Chinese OC cohort.</p> Methods <p>Eligible OC patients had received ≥ 1 dose of olaparib. Follow-up extended up to 30 days post-olaparib discontinuation or maximally for six months post-enrolment. Primary and secondary endpoints were adverse events (AEs) in all OC patients and in special populations (hepatically/renally impaired before olaparib treatment; aged &gt; 65 years), respectively.</p> Results <p>By Jun 30, 2023, 799 patients from 33 sites were enrolled. By data cut-off (Dec 29, 2023), 796 patients treated with olaparib were analyzed. The median age was 55 years (range, 25–85). Of 796 patients, 490 (61.6%) were newly diagnosed and 306 (38.4%) had platinum-sensitive relapsed OC. AEs occurred in 343 (43.1%) patients, and 257 (32.3%) had treatment-related AEs. Anemia (19.2%) was the most common AE. Sixty-eight (8.5%) patients experienced grade ≥ 3 AEs, and 3 had AEs of special interest (AESIs; 0.4%; 1 myelodysplastic syndrome, 1 breast cancer, 1 pneumonitis). 45.2% (19/42) patients with hepatic impairment at baseline, 38.5% (5/13) with renal impairment at baseline and 38.6% (49/127) aged &gt; 65 years experienced any AEs, respectively. No AESIs were reported in these subgroups.</p> Conclusions <p>In this largest-to-date, first prospectively enrolled, real-world Chinese OC cohort, olaparib demonstrated a well-tolerated and manageable safety profile (including in special populations) with appropriate management, regardless of treatment lines. No new safety signals were identified.</p>

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A multicenter, prospective, non-interventional drug intensive monitoring study of olaparib in a large real-world Chinese patient cohort with ovarian cancer (DIM-OC)

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  • 发表日期：

    2025年12月17日

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  • Li Wang,
  • Lingling Xie,
  • Qingshui Li,
  • Yang Shen,
  • Huaying Wang,
  • Li Sun,
  • Hongying Yang,
  • Dongyan Cao,
  • Haiying Li,
  • Bei Lin,
  • Qionghua Chen,
  • Ruixia Guo,
  • Ge Lou,
  • Ziling Liu,
  • Yuanming Shen,
  • Weiwei Feng,
  • Ping Zhang,
  • Jianwei Zhou,
  • Xipeng Wang,
  • Yue Wang,
  • Zhen Shen,
  • Fengxia Xue,
  • Liguo Ma,
  • Chunhua Tu,
  • Yingjie Yang,
  • Wenjun Cheng,
  • Yi Zhang,
  • Shan Kang,
  • Congzhu Li,
  • Hongwu Wen,
  • Xin Wu,
  • Xiping Luo,
  • Rutie Yin,
  • Zhongqiu Lin

摘要

Background

Ovarian cancer (OC) is a highly lethal gynecological cancer. Olaparib maintenance therapy was effective and well-tolerated in pivotal RCTs. However, nationwide real-world safety information is limited in China. This multicenter, prospective, observational drug intensive monitoring study monitored the safety of olaparib in a largest-to-date, real-world Chinese OC cohort.

Methods

Eligible OC patients had received ≥ 1 dose of olaparib. Follow-up extended up to 30 days post-olaparib discontinuation or maximally for six months post-enrolment. Primary and secondary endpoints were adverse events (AEs) in all OC patients and in special populations (hepatically/renally impaired before olaparib treatment; aged > 65 years), respectively.

Results

By Jun 30, 2023, 799 patients from 33 sites were enrolled. By data cut-off (Dec 29, 2023), 796 patients treated with olaparib were analyzed. The median age was 55 years (range, 25–85). Of 796 patients, 490 (61.6%) were newly diagnosed and 306 (38.4%) had platinum-sensitive relapsed OC. AEs occurred in 343 (43.1%) patients, and 257 (32.3%) had treatment-related AEs. Anemia (19.2%) was the most common AE. Sixty-eight (8.5%) patients experienced grade ≥ 3 AEs, and 3 had AEs of special interest (AESIs; 0.4%; 1 myelodysplastic syndrome, 1 breast cancer, 1 pneumonitis). 45.2% (19/42) patients with hepatic impairment at baseline, 38.5% (5/13) with renal impairment at baseline and 38.6% (49/127) aged > 65 years experienced any AEs, respectively. No AESIs were reported in these subgroups.

Conclusions

In this largest-to-date, first prospectively enrolled, real-world Chinese OC cohort, olaparib demonstrated a well-tolerated and manageable safety profile (including in special populations) with appropriate management, regardless of treatment lines. No new safety signals were identified.