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A Phase Ib/ IIa, open-label, dose finding, safety, tolerability and exploratory study of THEO-260 in patients with high grade serous or endometrioid ovarian cancer

Status
Recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2024-511236-27-00
Acronym
THEO-260-001
Enrollment
5
Registered
2025-07-16
Start date
2025-11-12
Completion date
Unknown
Last updated
2025-09-25

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

Conditions

High grade serous or endometroid ovarian cancer

Brief summary

Part A: Safety and tolerability will be assessed by: 1) evaluation of DLTs and AEs (including but not limited to immunerelated AEs [irAEs]) during treatment and follow-up using NCI CTCAE v5.0 or American Society of Clinical Oncology (ASCO; for pneumonitis only) or American Society for Transplantation and Cellular Therapy (ASTCT; for CRS only). 2) Laboratory parameters. 3) Vital signs, physical examination, weight, 12-lead ECG and ECOG performance status, Part A: Evaluation of RP2D using safety, tolerability, pharmacokinetics (PK), pharmacodynamics (PD) and if available, anti-tumour activity data by Response Evaluation Criteria in Solid Tumours (RECIST) v1.1., Part B: The response to RP2D dose of THEO-260 will be assessed by ORR determined by tumour imaging according to RECIST v1.1.

Detailed description

Assess PK profile of THEO-260 in blood by qPCR., Assess shedding of THEO-260 in buccal, urine and faecal samples by qPCR., Assess systemic cytokine release following administration of THEO-260 by measurement of key markers in blood., Determine response to THEO-260 as assessed: 1) by tumour imaging according to RECIST v1.1. 2) Changes in CA-125. 3) Quality of Life Questionnaires, Part B: Safety and tolerability will be assessed by evaluation of DLTs and AEs (including but not limited to irAEs) during treatment and follow-up using NCI CTCAE v5.0 or ASCO (for pneumonitis only) or ASTCT (for CRS only);

Interventions

Sponsors

Theolytics Limited
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Design outcomes

Primary

MeasureTime frame
Part A: Safety and tolerability will be assessed by: 1) evaluation of DLTs and AEs (including but not limited to immunerelated AEs [irAEs]) during treatment and follow-up using NCI CTCAE v5.0 or American Society of Clinical Oncology (ASCO; for pneumonitis only) or American Society for Transplantation and Cellular Therapy (ASTCT; for CRS only). 2) Laboratory parameters. 3) Vital signs, physical examination, weight, 12-lead ECG and ECOG performance status, Part A: Evaluation of RP2D using safety, tolerability, pharmacokinetics (PK), pharmacodynamics (PD) and if available, anti-tumour activity data by Response Evaluation Criteria in Solid Tumours (RECIST) v1.1., Part B: The response to RP2D dose of THEO-260 will be assessed by ORR determined by tumour imaging according to RECIST v1.1.

Secondary

MeasureTime frame
Assess PK profile of THEO-260 in blood by qPCR., Assess shedding of THEO-260 in buccal, urine and faecal samples by qPCR., Assess systemic cytokine release following administration of THEO-260 by measurement of key markers in blood., Determine response to THEO-260 as assessed: 1) by tumour imaging according to RECIST v1.1. 2) Changes in CA-125. 3) Quality of Life Questionnaires, Part B: Safety and tolerability will be assessed by evaluation of DLTs and AEs (including but not limited to irAEs) during treatment and follow-up using NCI CTCAE v5.0 or ASCO (for pneumonitis only) or ASTCT (for CRS only);

Countries

Spain

Outcome results

None listed

Source: EU CTIS · Data processed: Feb 4, 2026