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Recruiting Phase 1, Phase 2 NCT06618235

NCT06618235 Trial of THEO-260 in Ovarian Cancer Patients

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Clinical Trial Summary
NCT ID NCT06618235
Status Recruiting
Phase Phase 1, Phase 2
Sponsor Theolytics Limited
Condition Ovarian Cancer
Study Type INTERVENTIONAL
Enrollment 44 participants
Start Date 2024-09-24
Primary Completion 2028-06

Eligibility & Interventions

Sex Female only
Min Age 18 Years
Max Age N/A
Study Type INTERVENTIONAL
Interventions
THEO-260

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 44 participants in total. It began in 2024-09-24 with a primary completion date of 2028-06.

⚠ 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

A research study evaluating a new oncolytic virus, THEO-260, in patients with advanced ovarian cancer. The trial will investigate different doses of THEO-260 administered intravenously to identify a dose that is safe, well tolerated, and exhibits preliminary evidence of anti tumour activity.

Eligibility Criteria

Inclusion Criteria: * Confirmed histological diagnosis of advanced high grade serous or endometrioid cancer of the fallopian tube, primary peritoneum or ovary either on archival biopsy or fresh tumour biopsy. * Platinum-resistant disease (radiological recurrence/ progression with 6 months of prior platinum treatment), primary platinum-refractory disease (recurrence/ progression during first line platinum treatment) and patients who are intolerant to or have no available SOC or SOC unacceptable/ unsuitable in the view of the Investigator. * Life expectancy of \> 3 months. * ECOG performance status of 0 or 1. * Measurable disease as per RECIST V1.1. Exclusion Criteria: * Prior anti-cancer treatment within 28 days or 5 half-lives, prior to first dose of THEO-260. * Prior treatment with a group B adenovirus. * Currently enrolled in a clinical trial of an IMP or used any IMP with 5 half-live, prior to first dose of THEO-260. * Radiation therapy within 2 weeks of first dose of THEO-260 and is scheduled to have radiation therapy during participation of trial. * Clinical evidence of cerebral metastases or Central Nervous System (CNS) involvement including leptomeningeal disease. Patients with previous cerebral metastases must have no evidence of progression or haemorrhage after treatment. * Uncontrolled pleural effusion or pericardial effusion requiring recurrent drainage procedures (as defined as once monthly or more frequently). * Prior pneumonitis or history of interstitial lung disease. * Confirmed QTcF ≥470 ms on screening 12-lead ECG or history of Torsades de Pointes or history of congenital long QT syndrome. * Concomitant medications that prolong the QTc interval and/or increase the risk for Torsades de Pointes. * Patients with active hepatitis infection or hepatitis C. Patients with past hepatitis B virus (HBV) infection or resolved HBV infection. * Active infection with tuberculosis. * Active infection with severe acute respiratory syndrome coronavirus 2 (SARS-Cov-2). * Patients with active human immunodeficiency virus (HIV) infection or known history of HIV infection. * Active infection requiring IV antibiotics within 2 weeks prior to first dose of THEO-260, or long-term oral therapy for systemic infection. * Known contra-indications or hypersensitivity to the excipients of the IMP. * Viral infection during the 2 weeks prior to first dose of THEO-260. * Active autoimmune disease that has required systemic treatment in the past 2 years. * Known risk of renal injury, including those with a past history of acute or sub-acute renal disease. * Known heart failure New York Heart Association (NYHA) Class 2-4. * Known contra-indications or hypersensitivity to the AxMP, paracetamol. * Known alcohol consumption in excess of 2 units per day. * Left ventricular ejection fraction (LVEF) \<50%, unstable angina, serious uncontrolled cardiac arrhythmia, a myocardial infarction within 6 months prior to trial enrolment or a history of myocarditis. * Arterial oxygen saturation \<92% on room air prior to first dose of THEO-260. * Received any licensed or investigational vaccines within 28 days prior to first dose of THEO-260.

Contact & Investigator

Central Contact

Clinical Trials

✉ clinicaltrials@theolytics.com

📞 +441865607020

Frequently Asked Questions

Who can join the NCT06618235 clinical trial?

This trial is open to female participants only, aged 18 Years or older, studying Ovarian 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 NCT06618235 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 NCT06618235 currently recruiting?

Yes, NCT06618235 is actively recruiting participants. Contact the research team at clinicaltrials@theolytics.com for enrollment information.

Where is the NCT06618235 trial being conducted?

This trial is being conducted at Madrid, Spain, Glasgow, United Kingdom, London, United Kingdom, Oxford, United Kingdom.

Who is sponsoring the NCT06618235 clinical trial?

NCT06618235 is sponsored by Theolytics Limited. The trial plans to enroll 44 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: April 2026  ·  Data Methodology