Drugs / RISOVALISIB
last change Mar 2026 re-read 9 days ago

RISOVALISIB

also known as CYH33

Small molecule

Developed for
breast cancer · ovarian cancer · cancer · endometrial cancer · PIK3CA-related overgrowth spectrum · prostate cancer · vascular malformation
Investigated by
Haihe Biopharma Co., Ltd.

Trials 5

PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 13 trials
Phase 1 NCT04856371 Apr 2021 → Mar 2022 breast cancer Haihe Biopharma Co., Ltd. Unknown No outcome recorded
Phase 1 NCT04586335 Sep 2020 → Feb 2023 breast cancer, endometrial cancer, ovarian cancer, prostate cancer Haihe Biopharma Co., Ltd. Terminated No outcome recorded Stop: Business
Phase 1 NCT03544905 Jul 2018 → Dec 2024 cancer Haihe Biopharma Co., Ltd. Completed No outcome recorded
Phase 1/21 trial
Phase 1/2 NCT06975618 Aug 2023 → Dec 2029 expected PIK3CA-related overgrowth spectrum, vascular malformation Haihe Biopharma Co., Ltd. Recruiting No outcome recorded
Phase 21 trial
Phase 2 NCT05043922 Oct 2021 → Jul 2024 overdue ovarian cancer Haihe Biopharma Co., Ltd. Active not recruiting No outcome recorded

News releases announcing trial results or a regulatory action · 5

DateIssuerRelease
2026-03-23 Haihe Biopharma Co., Ltd. Regulatory 海和药物PI3Kα选择性抑制剂甲磺酸瑞索利塞片(CYH33)成功在日本获批上市 haihepharma.com ↗
今日,上海海和药物研究开发股份有限公司(下称“海和药物”)宣布,其自主开发的PI3Kα选择性抑制剂甲磺酸瑞索利塞片(下称“瑞索利塞”,研发代号:CYH33;中文商品名:海泽欣 ® ;日本商品名:ハイツエキシン ® 錠10 mg)获得日本厚生劳动省(MHLW)批准上市,用于治疗化疗后疾病进展且携带 PIK3CA 基因突变的卵巢透明细胞癌(OCCC)。
2025-06-30 Haihe Biopharma Co., Ltd. Regulatory 喜讯:海和药物自主研发药物瑞索利塞获日本孤儿药认定 haihepharma.com ↗
我们非常高兴CYH33获得日本厚生劳动省的孤儿药认定,这是海和药物在国际精准医疗领域的又一重要突破。
2024-06-03 Haihe Biopharma Co., Ltd. Results 海和药物两项临床研究成果亮相2024年美国临床肿瘤学 (ASCO)年会 haihepharma.com ↗
在此次ASCO年会中,我们报告了一项正在HR+/HER2-晚期乳腺癌患者中进行的Ib期研究(CYH33-G103)中CYH33+氟维司群队列的数据。
2021-03-02 Haihe Biopharma Co., Ltd. Results 新春双响炮 haihepharma.com ↗
在18例 PIK3CA 热点突变的可评估患者中,4例患者达到最佳总体缓解,其中1例卵巢癌受试者肿瘤病灶完全消失,达到完全缓解(CR),截至发稿日,缓解持续时间已达1年以上,目前仍在研究治疗中。
2020-05-22 Haihe Biopharma Co., Ltd. Regulatory 海和药物创新药物PI3Kα抑制剂获FDA临床试验默示许可 haihepharma.com ↗
海和药物宣布,公司研发的磷脂肌醇3-激酶(PI3K)α抑制剂CYH33已于近日获得美国食品药品监督管理局(FDA)的临床试验默示许可(IND),拟用于治疗晚期实体肿瘤。

Evidence & citations 5 cited values

Every value below carries the sentence it was read from. 6 sources stand behind the page.

FieldValueCited text
Known as RISOVALISIB ChEMBL registry synonym — accepted as the source's own label CHEMBL4800252 ↗
Known as CYH33 ClinicalTrials.gov intervention name — accepted as the source's own label NCT04856371 ↗
4

NCT04586335 ↗

NCT06975618 ↗

NCT05043922 ↗

NCT03544905 ↗

Action Inhibit “CYH33 is a novel, highly potent and selective inhibitor of phosphatidylinositol 3-kinase α” NCT04586335 ↗
Modality Small molecule — CHEMBL4800252 ↗
Route Oral “CYH33, an Oral α-specific PI3K Inhibitor” NCT04586335 ↗