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Recruiting Phase 1 NCT06666270

NCT06666270 Study of SYN818 for the Treatment of Advanced or Metastatic Solid Tumors

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Clinical Trial Summary
NCT ID NCT06666270
Status Recruiting
Phase Phase 1
Sponsor Hangzhou SynRx Therapeutics Biomedical Technology Co., Ltd
Condition Advanced Solid Cancer
Study Type INTERVENTIONAL
Enrollment 30 participants
Start Date 2024-11-21
Primary Completion 2026-06-30

Eligibility & Interventions

Sex All sexes
Min Age 18 Years
Max Age N/A
Study Type INTERVENTIONAL
Interventions
SYN818

Eligibility Fast-Check

Enter your details for a quick preliminary check. This does not replace medical advice.

What to Expect as a Participant

You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.

Phase 1 is the earliest stage of human testing — safety and dosage are the primary focus. Visits are frequent and medical supervision is intensive. You will be among the first people to receive this treatment.

This trial targets 30 participants in total. It began in 2024-11-21 with a primary completion date of 2026-06-30.

⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.

Brief Summary

This interventional study will evaluate the safety, tolerability, pharmacokinetics, pharmacodynamics and preliminary efficacy of SYN818 as monotherapy in adult patients with advanced solid tumors

Eligibility Criteria

Inclusion Criteria: * Having signed the written Informed Consent Form (ICF); * Male or female aged ≥18 years; * Life expectancy ≥12 weeks; * Eastern Cooperative Oncology Group (ECOG) Performance Score 0 or 1; * Patients with histologically or cytologically confirmed locally advanced or metastatic breast cancer, ovarian cancer, prostate cancer or other advanced solid tumors who have experienced disease progression, and available SOC therapies had been exhausted; * be willing to provide tumor tissue samples (fresh frozen \[SF\] or previously retained paraffin-embedded \[FFPE\] tumor tissue samples) or peripheral blood germline DNA or ctDNA sample to detect BRCA mutation, or other deficiency in the HR pathway (by the detection method of next generation sequencing \[NGS\]) * At least one measurable lesion according to RECIST v1.1; * No serious hematological, cardiopulmonary, or liver or kidney diseases other than the primary disease; * Adequate organ function and bone marrow function. Exclusion Criteria: * Previous or current use of POLQ inhibitors; * Hypersensitivity to the active pharmaceutical ingredient or any excipient of SYN818; * Central nervous system (CNS) metastasis or meningeal metastasis with clinical symptoms, or other evidence indicating that CNS metastasis or meningeal metastasis has not been adequately controlled; * Other malignant tumors than the study tumors within 5 years prior to the first dose of the study drug, except for localized cancers that have been evidently cured or disease-free for at least 3 years, such as basal or squamous cell skin cancer, superficial bladder cancer, prostate carcinoma in situ, carcinoma in situ of cervix, or carcinoma in situ of breast; * Patients with Myelodysplastic syndrome (MDS)/Acute myeloid leukemia (AML) or with features suggestive of MDS/AML; * Dysphagia or refractory nausea and vomiting, malabsorption, extracorporeal biliary shunts, or gastrointestinal disorders that affect drug absorption, e.g., Crohn's disease, ulcerative colitis, or short bowel syndrome, or other malabsorption conditions; * Major surgery or serious trauma within 4 weeks prior to the first dose of the study treatment or major surgery planned during the trial period, and none of the AEs related to surgery or major trauma have resolved (to ≤ CTCAE v5.0 Grade 1 or baseline level) before the first dose of the study drug; * History of use within 2 weeks prior to the first dose of the study treatment and need to use protocol-prohibited potent inhibitors or potent inducers of cytochrome P450 (CYP) 3A4/BCRP/P-gp during the study; * Serious systemic diseases or laboratory abnormalities or other conditions that, at the Investigator's discretion, will make it unsuitable for the patient to participate in this clinical trial.

Contact & Investigator

Central Contact

Tongfu Xu, PHD

✉ xutongfu@synrx.cn

📞 +86-571-86360796

Frequently Asked Questions

Who can join the NCT06666270 clinical trial?

This trial is open to participants of all sexes, aged 18 Years or older, studying Advanced Solid Cancer. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.

What phase is the NCT06666270 trial and what does that mean for participants?

Phase 1 trials are the first stage of human testing. The primary goal is to assess safety and determine appropriate dosage levels. Participants are closely monitored. These trials typically involve a small number of volunteers.

Is NCT06666270 currently recruiting?

Yes, NCT06666270 is actively recruiting participants. Contact the research team at xutongfu@synrx.cn for enrollment information.

Where is the NCT06666270 trial being conducted?

This trial is being conducted at Zhengzhou, China, Shanghai, China.

Who is sponsoring the NCT06666270 clinical trial?

NCT06666270 is sponsored by Hangzhou SynRx Therapeutics Biomedical Technology Co., Ltd. The trial plans to enroll 30 participants.

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ClinicalMetric — Independent clinical trial intelligence platform. Not affiliated with NIH, ClinicalTrials.gov, the U.S. FDA, or any pharmaceutical company, hospital, or clinical research organization. Trial data is sourced from ClinicalTrials.gov for informational purposes only and does not constitute medical advice. Do not make any treatment, enrollment, or health decisions based solely on information found here — always consult a qualified healthcare professional. Full Disclaimer  ·  Last Reviewed: September 2026  ·  Data Methodology