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Pamiparib Plus Surufatinib in Patients With Platinum-resistant Ovarian Cancer

Pamiparib in Combination With Surufatinib in Patients With Platinum-resistant Ovarian Cancer Who Received Prior Poly (ADP-ribose) Polymerase (PARP) Inhibitors: a Multicenter, Single-arm, Phase Ib/II Trial

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05494580
Enrollment
29
Registered
2022-08-10
Start date
2022-09-22
Completion date
2026-01-31
Last updated
2026-03-10

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Fallopian Tube Carcinosarcoma, Ovarian Cancer, Ovarian Carcinoma, Platinum-resistant Ovarian Cancer, Primary Peritoneal Cancer

Keywords

Ovarian cancer, PARP inhibitor, Antiangiogenic agents, Platinum-resistant

Brief summary

A number of studies suggest that the combination of PARP inhibitors and antiangiogenic agents produce synergistic activities. Pamiparib is a small molecule inhibitor selectivity for both PARP1 and PARP2. Surufatinib is a novel small-molecule inhibitor that simultaneously targets tumor angiogenesis (via Vascular Endothelial Growth Factor Receptor \[VEGFR\]1, VEGFR 2, VEGFR3 and Fibroblast Growth Factor Receptor 1 \[FGFR1\]) and immune evasion (via Colony Stimulating Factor 1 Receptor \[CSF1R\]). In this trial, we aimed to evaluate the efficacy, safety and tolerability of pamiparib in combination with surufatinib in patients with platinum-resistant ovarian cancer who received prior PARP inhibitors.

Interventions

DRUGPamiparib

Oral

DRUGSurufatinib

Oral

Sponsors

Sun Yat-sen University
Lead SponsorOTHER
Hutchmed
CollaboratorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Drug: Pamiparib Drug: Surufatinib

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

1. Signed Informed Consent Form; 2. Histologically confirmed epithelial ovarian cancer, fallopian tube cancer, or primary peritoneal cancer; 3. Platinum-resistant disease, defined as progression within 6 months from completion of most recent platinum-containing therapy. Subject may have been treated with additional regimen(s) subsequent to determination of platinum resistance; 4. Patients must have received one prior PARP inhibitor therapy, and there must be a ≥ 6 month interval since treatment; 5. Female participants age 18-75 years; 6. Has measurable lesion per RECIST v1.1; 7. Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1; 8. Life expectancy ≥ 3 months; 9. Patients must have normal organ and bone marrow function; 10. Women of childbearing potential should have a negative serum or urine pregnancy test prior to receiving the first dose of study treatment; and should be willing to use one acceptable contraception (i.e., oral contraceptives, condoms, intrauterine devices \[IUDs\]) throughout the period of taking study treatment and for at least 6 months after the last dose of study drug(s).

Exclusion criteria

1. Histological diagnosis of mucinous adenocarcinoma; 2. Has received prior therapy with small molecule antiangiogenic receptor tyrosine kinase inhibitors (TKIs); 3. Known or suspected allergy to any of study drugs; 4. Has clinically significant cardiovascular disease within 6 months from first dose of study intervention, including New York heart association \[NYHA\] class \> 2, unstable angina, myocardial infarction, cardiac arrhythmia associated with hemodynamic instability (including corrected QT (QTc) interval ≥ 450 ms in men, ≥ 470 ms in female); 5. Has active ulcers, gastrointestinal perforation or obstruction; 6. Active bleeding or pathologic condition that carries a high risk of bleeding; 7. Inadequately controlled hypertension (systolic blood pressure ≥ 150 mmHg and/or diastolic blood pressure ≥ 90 mmHg) with or without treatment; 8. Major surgery within 28 days of starting study treatment; 9. Proteinuria ≥ (++) or 24 hours total urine protein \> 1.0 g; 10. Uncontrolled pericardial or pleural or peritoneal effusions; 11. Has a diagnosed and/or treated additional malignancy within the last 5 years. Exceptions include in situ cervical cancer, non-melanoma skin cancer, or superficial bladder tumors that has undergone potentially curative therapy; 12. Known Human Immunodeficiency Virus (HIV) infection; 13. Has known active central nervous system (CNS) metastases and/or carcinomatous meningitis; 14. Any medical or other condition that in the opinion of the investigator(s) would preclude the participant's participation in the study.

Design outcomes

Primary

MeasureTime frameDescription
The 6-month progression-free survival (PFS) rate (Phase II)from the first drug administration up to two yearsThe percentage of patients alive without documented progression 6 months after treatment initiation.
Recommended Phase 2 dose (RP2D) (Phase Ib)first 21 days of treatmentDetermine the RP2D of the pamiparib and surufatinib combination

Secondary

MeasureTime frameDescription
Overall survival (OS)from the first drug administration up to 2 yearsTime from the date of first study treatment administration to the date of death due to any cause.
Objective response rate (ORR)from the first drug administration up to two yearsThe proportion of subjects with complete response (CR) or partial response (PR) according to RECIST 1.1
Safety and tolerabilityup to 90 days after last study treatment administrationIncidence, nature, and severity of adverse events graded according to the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) v5.0.
Disease Control Rate (DCR)from the first drug administration up to two yearsProportion of patients whose best overall response is either CR, PR, or SD.
Patient Reported Outcomes (PROs)from the first drug administration up to two yearsDetermination of changes in PROs with Functional Assessment of Cancer Therapy for patients with ovarian cancer (FACT-O) questionnaire
Duration of response (DOR)from the first drug administration up to two yearsTime from first documented response (CR or PR) until documented disease progression or death, whichever occurs first.

Countries

China

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 11, 2026