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NCT06819735PHASE1, PHASE2Recruiting

Study of DT-7012 as a Single Agent and in Combination With an Immune Checkpoint Inhibitor in Participants With Advanced Solid Tumors

Domain Therapeutics Australia Pty Ltd

Start Date

6/25/2025

Completion Date

1/1/2028

Summary

This is a phase 1/2, dose-escalation, clinical study to evaluate the safety, tolerability, pharmacokinetics, pharmacodynamics and efficacy of DT-7012 (an anti-CCR8 monoclonal antibody) as a single agent and in combination with an immune checkpoint inhibitor in adult participants with selected advanced solid tumors.

Detailed Description

This is a phase 1/2, first-in-human, multicenter, open-label clinical study to assess the safety, tolerability, pharmacokinetics, pharmacodynamics and efficacy of DT-7012, administered as monotherapy and in combination with an immune checkpoint inhibitor (ICI), in participants with selected recurrent advanced/metastatic solid tumors. This study includes: * a phase 1 Monotherapy Dose Escalation * a phase 1b Combination Dose Escalation (this part will be initiated upon recommendation from the Safety Review Committee based on Monotherapy Dose Escalation data and corresponds to a dose escalation of a combination of DT-7012 with an ICI) * a subsequent phase 2 Indication-Specific Efficacy part The phase 1 aims at determining the maximum tolerated dose or maximum administered dose of DT-7012 as single agent and in combination with an ICI, and the safety and tolerability of DT-7012 as single agent and in combination with an ICI in participants with selected recurrent advanced/metastatic solid tumors. The phase 2 will assess the efficacy of DT-7012 as monotherapy and/or in combination with an ICI in indication-specific cohorts.

Eligibility Criteria

Age Range: 18 years to No maximum

Inclusion Criteria: * Histologically or cytologically confirmed solid tumor, among selected cancer types, that is recurrent, locally advanced (i.e., not eligible for curative surgery or radiotherapy) or metastatic, has progressed after at least one line of systemic therapy and has no established curative option. * Measurable disease per Response Evaluation Criteria in Solid Tumors (RECIST) v1.1 as assessed by the local site investigator/radiologist. * At least 1 tumour lesion accessible to biopsy per treating physician judgement. * Eastern Cooperative Oncology Group (ECOG) PS of 0 or 1. * Adequate organ function. Exclusion Criteria: * Any unresolved AEs from previous anti-cancer therapies of grade ≥2, with the exception of alopecia. * Prior severe immune-related AEs (irAEs) leading to immunotherapy treatment discontinuation. * Major surgery or significant traumatic injury within 4 weeks prior to Cycle 1 Day 1 with unadequately recovered AEs and/or complications from the intervention prior to Cycle 1 Day 1. * Prior radiotherapy within the 4 weeks prior to Cycle 1 Day 1 or limited field palliative radiotherapy within 2 weeks prior to Cycle 1 Day 1. * Prior anti-CCR8 monoclonal antibody treatment received in an investigational trial

Interventions

DRUG

DT-7012

DRUG

Immune checkpoint inhibitor

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Conditions

Advanced Solid Tumors

Locations

Honor Health Research Institute

Scottsdale, Arizona 85258

United States

Macquarie University Clinical Trial Unit

North Ryde, New South Wales 2109

Australia

Cancer Research SA

Adelaide, South Australia 5000

Australia

Peninsula & South Eastern Haematology & Oncology Group

Frankston, Victoria 3199

Australia

Cabrini Health Limited

Malvern, Victoria 3144

Australia

One Clinical Research Pty Ltd

Nedlands, Western Australia 6009

Australia

Institut Bergonié

Bordeaux, 33076

France

Hôpitaux Universitaires de Strasbourg

Strasbourg, 67200

France

Institut Gustave Roussy

Villejuif, 94800

France