NCT05770544

DETERMINE Trial Treatment Arm 03: Entrectinib in Adult, Paediatric and Teenage/Young Adult Patients With ROS1 Gene Fusion-Positive Cancers.

DETERMINE (Determining Extended Therapeutic Indications for Existing Drugs in Rare Molecularly Defined Indications Using a National Evaluation Platform Trial): An Umbrella-Basket Platform Trial to Evaluate the Efficacy of Targeted Therapies in Rare Adult, Paediatric and Teenage/Young Adult (TYA) Cancers With Actionable Genomic Alterations, Including Common Cancers With Rare Actionable Alterations. Treatment Arm 03: Entrectinib in Adult, Paediatric and Teenage/Young Adult Patients With ROS1 Gene Fusion-Positive Cancers.

• Status: Recruiting
• Phase: Phase 2 / Phase 3
• Study type: Interventional
• Enrollment: 30 (estimated)
• Sponsor: Cancer Research UK · Academic / Other
• Sex: All
• Age: —
• Healthy volunteers: Not accepted

Summary

This clinical trial is looking at a drug called entrectinib. Entrectinib is approved as standard of care treatment for adult patients with non-small cell lung cancer (NSCLC) which have a particular molecular alteration called ROS1-positive, and patients 12 years old or above with solid tumours which have another type of change in the cancer cells. This means it has gone through clinical trials and been approved by the Medicines and Healthcare products Regulatory Agency (MHRA) in the UK. Investigators now wish to find out if it will be useful in treating patients with other cancer types which have the same molecular alteration (ROS1-positive). If the results are positive, the study team will work with the NHS and the Cancer Drugs Fund to see if these drugs can be routinely accessed for patients in the future. This trial is part of a trial programme called DETERMINE. The programme will also look at other anti-cancer drugs in the same way, through matching the drug to rare cancer types or ones with specific mutations.

Detailed description

DETERMINE Treatment Arm 03 (entrectinib) aims to evaluate the efficacy of entrectinib in ROS1 gene fusion-positive rare\* adult, paediatric and teenage/young adult (TYA) cancers and in common cancers where a ROS1 mutation or amplification is considered to be infrequent. \*Rare is defined generally as incidence less than 6 cases in 100,000 patients (includes paediatric and teenagers/young adult cancers) or common cancers with rare alterations. This treatment arm has a target sample size of 30 evaluable patients. Sub-cohorts may be defined and further expanded to a target of 30 evaluable patients each. The ultimate aim is to translate positive clinical findings to the NHS (Cancer Drugs Fund) to provide new treatment options for rare adult, paediatric and TYA cancers. OUTLINE: Pre-screening: The Molecular Tumour Board makes a treatment recommendation for the patient based on molecularly-defined cohorts. Screening: Consenting patients undergo biopsy and collection of blood samples for research purposes. Treatment: Patients will receive entrectinib until disease progression without clinical benefit, unacceptable adverse events (AEs) or withdrawal of consent. Patients will also undergo collection of blood samples at various intervals while receiving treatment and at the end of treatment visit (EoT). After completion of study treatment, patients are followed up every 3 months for 2 years THE DETERMINE TRIAL MASTER (SCREENING) PROTOCOL: Please see DETERMINE Trial Master (Screening) Protocol record (NCT05722886) for information on the DETERMINE Trial Master Protocol and applicable documents.

Conditions

• Haematological Malignancy
• Malignancy
• Malignant Neoplasm
• Lymphoproliferative Disorders
• Neoplasms by Histologic Type
• Neoplasms by Site
• Cancer
• Brain Neoplasms
• Melanoma
• Glioma
• Solid Tumour

Interventions

Type	Name	Description
DRUG	Entrectinib	Adult and paediatric patients with body surface area (BSA) ≥1.51 m\^2 will receive entrectinib orally at a dose of 600 mg daily dose (three 200 mg capsules per day). Paediatric patients with BSA \<1.51 m\^2 will receive entrectinib at a dose of 100 mg (BSA=0.43-0.50 m\^2) or 200 mg (BSA=0.51-0.80 m\^2) or 300 mg (BSA=0.81-1.10 m\^2) or 400 mg (BSA=1.11-1.50 m\^2). Each cycle of treatment will consist of 28 days and patients may continue until disease progression without clinical benefit, unacceptable AEs or withdrawal of consent.

Timeline

• Start date: 2025-11-30
• Primary completion: 2029-10-01
• Completion: 2029-10-01
• First posted: 2023-03-15
• Last updated: 2025-11-24

Locations

27 sites across 1 country: United Kingdom