AiRuiYi (fluzoparib)

P2, N=30, Not yet recruiting, Peking University Third Hospital

P2, N=72, Not yet recruiting, Tianjin Medical University Cancer Institute and Hospital

In total, 62 MBC patients treated with olaparib (N = 55), talazoparib (N = 4), pamiparib (N = 2), and fluzoparib (N = 1) were enrolled. Hematologic toxicity was the most common grade ⩾3 AEs. PARPis showed promising PFS and tolerable toxicity in the real-world treatment of Chinese MBC patients with HRR-related gene mutations.

To explore the therapeutic role of SMTN, customized cell membrane infused biomimetic liposomes were constructed to ensure rapid delivery of SMTN siRNA specifically into HCT-116 cells, yielding significantly enhanced anti-cancer effects of irinotecan and fuzuloparib both in vitro and in vivo. To summarize, our findings revealed a novel function of SMTN in DNA damage repair and provided a therapeutic strategy of targeting SMTN to enhance the efficacy of DNA damage agents.

P2, N=52, Completed, Cancer Institute and Hospital, Chinese Academy of Medical Sciences | Recruiting --> Completed | N=100 --> 52 | Trial completion date: Dec 2026 --> Dec 2024 | Trial primary completion date: Apr 2026 --> Dec 2024

The FDA has approved four PARP inhibitors (olaparib, rucaparib, niraparib, and talazoparib) for the treatment of ovarian, breast, prostate, and pancreatic cancer...The Chinese NMPA has approved three PARP antagonists (fuzuloparib, pamiparib, senaparib) for the treatment of ovarian cancer. All seven of these drugs are orally bioavailable and fall within the criteria of Lipinski's rule of five. Drug resistance develops in most PARP-inhibitor-treated cancer patients within one or two years.

Fluzoparib, the domestically developed PARPi in China, has demonstrated significant efficacy in BRCA-mutated ovarian cancer. In the field of supportive care, megestrol acetate (MA) is recommended as the first-line preferred therapeutic agent for cancer-related anorexia by major guidelines, though its role in first-line ovarian cancer therapy remains unexplored, and evidence for its combination with PARPi is lacking...Imaging assessments revealed significant tumor reduction without disease progression or grade ≥3 adverse events observed throughout follow-up. This case highlights the potential of combining PARPi and hormone therapy as a 'chemotherapy-free' precision treatment model for elderly and HRD-positive ovarian cancer patients, offering a promising strategy to balance efficacy and tolerability in a population traditionally underserved by conventional regimens.

Fuzuloparib, either as monotherapy or in combination with apatinib, provided statistically significant improvements in progression-free survival compared with chemotherapy in patients with HER2-negative metastatic breast cancer with germline BRCA1/2 mutations, presenting as new treatment options.

Although poly(adenosine diphosphate-ribose) polymerase inhibitors (PARPis) and bevacizumab were approved as first-line maintenance for advanced ovarian cancer (OC), evidence comparing this combination with PARPi monotherapy, especially in BRCA-mutated/homologous recombination-deficient (HRD) patients, is lacking. Adding apatinib to fuzuloparib did not prolong PFS among homologous recombination-deficient patients. There was a PFS benefit trend among homologous recombination-proficient patients who received combination therapy compared with those who received monotherapy.

This study aims to investigate the therapeutic potential of 131I-MIBG and the PARP inhibitor fluzoparib monotherapies and their combination on two distinct PC12-derived stable cell lines: PC12-NET cells and PC12-NET-SDHB cells...The specificity of PC12-NET cells to the 131I-MIBG was confirmed through desipramine inhibition assays...The combined of 131I-MIBG with PARP inhibitor demonstrated a synergistic antitumor effect in PC12-NET cells. While PC12-NET-SDHB cells display comparable sensitivity to 131I-MIBG as PC12-NET cells, they exhibited heightened responsiveness to PARP inhibitor treatment.

[18F]Fuzuloparib showed high tumor accumulation (peak 9.06 ± 0.31 %ID/g at 2 h) and sustained intratumoral retention (7.12 ± 0.31 %ID/g at 6 h), underscoring its potential as a promising PET imaging agent. These preclinical findings highlight the potential of [18F]Fuzuloparib as a robust non-invasive imaging agent for identifying PARP-overexpressing malignancies, with implications for optimizing PARP inhibitor therapy and forecasting therapeutic response.

P=N/A, N=30, Not yet recruiting, Harbin Medical University Affiliated Cancer Hospital; Harbin Medical University Affiliated Cancer Hospital