E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
metastatic gastrointestinal stromal tumor (GIST) |
|
E.1.1.1 | Medical condition in easily understood language |
gastrointestinal stromal tumour (GIST -, a cancer of the stomach and
bowel) that has spread |
|
E.1.1.2 | Therapeutic area | Diseases [C] - Cancer [C04] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10062427 |
E.1.2 | Term | Gastrointestinal stromal tumor |
E.1.2 | System Organ Class | 100000004864 |
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E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
The main objective is to assess the safety and activity of cabozantinib in patients with metastatic GIST who have previously progressed on imatinib and sunitinib and have not been exposed yet to other KIT- or PDGFR-directed tyrosine kinase inhibitors such as regorafenib or similar agents. |
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E.2.2 | Secondary objectives of the trial |
Secondary objectives of the trial include:
♦To assess the relative efficacy of cabozantinib in different mutational subtypes of GIST based on both archived tumor material derived from the primary tumor or a metastatic site, and mutations detected in circulating cell-free DNA using centralized mutational analysis.
♦To explore the use of circulating cell-free DNA (“liquid biopsy”) for centralized mutational analysis in GIST.
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
♦ Histologically confirmed diagnosis of GIST that is metastatic.
♦ Presence of at least one non-previously irradiated, measurable metastatic lesion as defined by RECIST 1.1
♦ Radiographic absence of a cavitating pulmonary lesion within 28 days prior to the first dose of cabozantinib
♦ Consent of the patient
♦ Failure on prior therapy with imatinib and sunitinib
♦ Male or female patient ≥ 18 years of age
♦ ECOG performance status (PS) of 0-1
♦ Adequate bone marrow and organ function prior to receiving the first dose of study treatment
♦ Clinically normal cardiac function
♦ Patients must be able to swallow and retain oral film-coated tablets
♦ Recovery to baseline or ≤ Grade 1 CTCAE v.4.0 from toxicities related to any prior treatments
♦ Prior radiation therapy patients with clinically relevant ongoing complications from prior radiation therapy are not eligible
♦ Prior surgery:
- Minor surgery within 28 days before the first dose of study treatment with complete wound healing at least 10 days before the first dose of study treatment is permitted
- Patients with clinically relevant ongoing complications from prior surgery are not eligible
♦ Willingness and ability to comply with scheduled visits, treatment plans, laboratory tests and other study procedures.
♦ Absence of any psychological, familial, sociological or geographical condition potentially hampering compliance with the study protocol and follow-up schedule
♦ Women of child bearing potential (WOCBP) must have a negative serum pregnancy test within 72 hours prior to the first dose of study treatment.
♦ Patients of childbearing / reproductive potential should use adequate birth control measures, as defined by the investigator, during the study treatment period and for at least 4 months after the last study treatment. A highly effective method of birth control is defined as a method which results in a low failure rate (i.e. less than 1% per year) when used consistently and correctly. Such methods include:
♦ Combined (estrogen and progestogen containing) hormonal contraception associated with inhibition of ovulation (oral, intravaginal, transdermal)
♦ Progestogen-only hormonal contraception associated with inhibition of ovulation (oral, injectable, implantable)
♦ Intrauterine device (IUD)
♦ Intrauterine hormone-releasing system (IUS)
♦ Bilateral tubal occlusion
♦ Vasectomized partner
♦ Sexual abstinence
♦ Before patient registration, written informed consent must be given according to international conference on harmonization/Good clinical practice (ICH/GCP), and national/local regulations. |
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E.4 | Principal exclusion criteria |
♦ Evidence of tumor or metastatic lesion invading the gastrointestinal tract within 28 days prior to the first dose of cabozantinib
♦ Current evidence of endotracheal or endobronchial tumor within 28 days before the first dose of cabozantinib
♦ Patient with tumor in contact with, invading or encasing a major blood vessel
♦ Prior use of tyrosine kinase inhibitors for the treatment of advanced GIST with the exception of imatinib and sunitinib
♦ Other investigational agents within 28 days before the first dose of study treatment
♦ History of congenital long QT syndrome
♦ QTcF> 500 msec within 1 month before the first dose of study treatment
♦ Congestive heart failure
♦ History of unstable angina, clinically significant cardiac arrhythmias and myocardial infarction within 6 months prior to the first dose of protocol treatment
♦ Poorly controlled hypertension
♦ Concomitant anticoagulation at therapeutic doses with oral anticoagulants
♦ Specific contraindications for treatment with cabozantinib
♦ Stroke and thromboembolic event requiring therapeutic anticoagulation within 6 months before the first dose of study treatment
♦ Gastrointestinal disorders associated with a high risk of perforation or fistula formation
♦ Other clinically significant disorders that would preclude safe study
participation
♦ Evidence of significant active bleeding or bleeding diathesis within 6 months before the first dose of study treatment
♦ Hemoptysis ≥ 0.5 teaspoon of red blood within 3 months before the first dose of study treatment
♦ Signs indicative of pulmonary hemorrhage within 3 months before the first dose of study treatment
♦ Prior radiation therapy:
- Radiation therapy for bone metastasis within 2 weeks, or any other external radiation therapy within 4 weeks before the first dose of study treatment.
- Systemic treatment with radionuclides within 6 weeks before the first dose of study treatment.
♦ Prior surgery major surgery or trauma within 12 weeks prior to first dose of study drug and/or presence of any non-healing wound, fracture or ulcer.
♦ Active infection requiring systemic treatment within 28 days before the first dose of study treatment.
♦ History of organ transplant.
♦ Concurrent severe, clinically relevant hypothyroidism or thyroid dysfunction within 7 days before the first dose of study treatment
♦ History of other malignancy in the past 5 years with the exception of treated carcinoma in situ of the cervix and non-metastatic, non-melanoma skin cancer
♦ Patients requiring chronic concomitant treatment with strong Cytochrome P450 (CYP) 3A4 inducers
♦ Lactating females |
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E.5 End points |
E.5.1 | Primary end point(s) |
Progression free survival at 12 weeks (binary) according to RECIST 1.1. |
|
E.5.1.1 | Timepoint(s) of evaluation of this end point |
Tumor evaluations for the assessment of PFS will be done every 6 weeks during the first 48 weeks and every 12 weeks thereafter until PD or start of new treatment for GIST after stopping cabozantinib |
|
E.5.2 | Secondary end point(s) |
The secondary endpoints include:
♦ PFS according to RECIST 1.1.
♦ Overall survival (OS).
♦ Objective response rate (ORR), defined as a complete or partial response (CR or PR) according to RECIST 1.1.Clinical benefit rate (CBR) defined as CR, PR, or SD according to RECIST 1.1.Total duration of treatment (including treatment beyond RECIST progression).
♦ Safety (graded according to the Common Terminology Criteria for Adverse Events, CTC-AE, version 4.0). |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
- Tumor evaluations for the assessment of PFS will be done every 6 weeks during the first 48 weeks and every 12 weeks thereafter until PD or start of new treatment for GIST after stopping cabozantinib.
- OS: every 3 weeks during cabozantinib treatment, thereafter every 12 weeks until death
- Safety: every 3 weeks during cabozantinib treatment + at 30 days after last administration of study drug
- ORR: Tumor evaluations for the assessment of ORR will be done every 6 weeks during the first 48 weeks and every 12 weeks thereafter until cabozantinib treatment discontinuation
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | No |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | Yes |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | No |
E.8.1.1 | Randomised | No |
E.8.1.2 | Open | Yes |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | No |
E.8.3 |
The trial involves single site in the Member State concerned
| Yes |
E.8.4 | The trial involves multiple sites in the Member State concerned | No |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 10 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | No |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.7 | Trial has a data monitoring committee | No |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
|
End of study occurs when all of the following criteria have been satisfied:
1. Thirty days after all patients have stopped protocol treatment.
2. The trial is mature for the analysis of the primary endpoint as defined in the protocol
3. The database has been fully cleaned and frozen for this analysis |
|
E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 3 |
E.8.9.1 | In the Member State concerned months | 0 |
E.8.9.1 | In the Member State concerned days | 0 |
E.8.9.2 | In all countries concerned by the trial years | 3 |
E.8.9.2 | In all countries concerned by the trial months | 0 |
E.8.9.2 | In all countries concerned by the trial days | 0 |