E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Metastatic Radioactive Iodine Refractory Thyroid Cancer Patients with RAS or BRAF mutation |
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E.1.1.1 | Medical condition in easily understood language |
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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 | PT |
E.1.2 | Classification code | 10016935 |
E.1.2 | Term | Follicular thyroid cancer |
E.1.2 | System Organ Class | 10029104 - Neoplasms benign, malignant and unspecified (incl cysts and polyps) |
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E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10066474 |
E.1.2 | Term | Thyroid cancer |
E.1.2 | System Organ Class | 10029104 - Neoplasms benign, malignant and unspecified (incl cysts and polyps) |
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E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10033701 |
E.1.2 | Term | Papillary thyroid cancer |
E.1.2 | System Organ Class | 10029104 - Neoplasms benign, malignant and unspecified (incl cysts and polyps) |
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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 |
To evaluate the objective response rate according to RECIST criteria in thyroid cancer patients with metastatic radioactive iodine (RAI) refractory disease, 6 months after a treatment combining in each arm of the phase II trial (patients with RAS mutation or patients with BRAFV600E mutation): - Arm A: 6 weeks of trametinib followed by RAI treatment (5.5 GBq following rhTSH) in patients with RAS mutation - Arm B: 6 weeks of trametinib plus dabrafenib followed by RAI treatment (5.5 GBq following rhTSH) in patients with BRAFV600E mutation
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E.2.2 | Secondary objectives of the trial |
-To evaluate the progression free-survival after the first dose of treatment -To evaluate the duration of response after the first dose of treatment -To evaluate the best overall response after the first dose of treatment -To evaluate the best overall response after the first dose of the second course of treatment -To evaluate the disease control rate at 1, 3, 6, +/- 12 and 18 months after the first dose of the first course of treatment -To evaluate the disease control rate at 1, 3, 6, 12 and 18 months after the first dose of the second course of treatment -To evaluate the objective Response Rate at 1, 3, 6, 12, 18 months after the first dose of drug -To evaluate the fluorodesoxyglucose metabolic response 6 months after initiation of treatment -To describe the changes in serum thyroglobulin levels -To assess the safety and tolerability of treatment -To describe the evolution of the patients quality of life -To perform a translational research ancillary study
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
- Patients with thyroid carcinoma of follicular origin (papillary, follicular or poorly differentiated and their respective variants) - Known positive RAS (NRAS or KRAS or HRAS) or BRAFV600E mutation (determined on a previous analysis and/or on a representative formalin-fixed paraffin embedded (FFPE) tumor samples sent for central testing or on a biopsy sample sent for central testing). - Radioiodine-refractory disease defined by at least one of the following item: Distant metastasis without radioiodine uptake on a post-therapeutic radioactive scan Distant metastasis disclosing RECIST progression within 12 months after a RAI treatment - Measurable disease with at least one lesion 1.0 cm in the longest diameter for a non-lymph node or 1.5 cm in the short axis for a lymph node, measured with spiral computed tomography (CT) without iv contrast injection or magnetic resonance imaging (MRI) according to RECIST 1.1 - Progressive disease according to RECIST 1.1 criteria within 18 months prior initiation of treatment - Absence of metastatic lesion > 30mm - Previous cumulated activity of radioactive iodine ≤ 300 mCi (11.1GBq) - Patients may have received prior treatment with either 1 line of Tyrosine Kinase Inhibitor or 1 line of immunotherapy (excluding anti BRAF or anti MEK treatment such as sorafenib, dabrafenib, trametinib and selumitinib) but should be off treatment within 28 days prior to treatment start - Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 1 - Blood pressure (BP) ≤ 140/90 mm Hg at screening with or without antihypertensive medications and no change in antihypertensive medications within 1 week prior to Cycle 1/Day 1 - Creatinine clearance ≥50 mL/min according to the Cockcroft and Gault formula - Adequate bone marrow function with : Absolute neutrophil count (ANC) ≥1.5 x 109/L Hemoglobin ≥9.0 g/dL Platelet count ≥100 x 109/L Normal blood coagulation function as evidenced by an International Normalized Ratio (INR) ≤ 1.5 - Adequate liver function with: Bilirubin ≤1.5 × upper limit of normal (ULN) except for unconjugated hyperbilirubinemia or Gilbert’s syndrome, Alkaline phosphatase (ALP), alanine aminotransferase (ALT), and aspartate aminotransferase (AST) ≤3 × ULN (≤5 × ULN if subject has liver metastases). - Males or females age ≥ 18 years at the time of informed consent - Women of childbearing potential must have a negative urine or serum β-HCG pregnancy test within 7 days prior to the administration of the first study treatment. Sexually active women of childbearing potential must agree to use a highly effective method of contraception during the study and for at least 12 months after the last study treatment administration. Sexually active males patients must agree to use condom during the study and for at least 12 months after the last study treatment administration. Also, it is recommended their women of childbearing potential partner use a highly effective method of contraception. - In case of previous external beam radiation, all radiation therapy-related toxicities must have resolved to < Grade 2 severity per Common Terminology Criteria for Adverse Events (CTCAE v 4.0), except alopecia and infertility. - Voluntary agreement to provide written informed consent and the willingness and ability to comply with all aspects of the protocol - Patient affiliated to a social security regimen or beneficiary of the same
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E.4 | Principal exclusion criteria |
- Undifferentiated or Medullary (MTC) carcinoma of the thyroid - Brain metastases (including asymptomatic brain metastases) - Major surgery within 4 weeks prior to the first dose of drug - Subjects having > 1 + proteinuria on urine dipstick testing will undergo 24 h urine collection for quantitative assessment of proteinuria. Subjects with urine protein ≥ 1 g/24 h will be ineligible. - Need for locoregional treatment such as surgery, external beam radiation or thermoablation at inclusion - Prior RAI therapy < 6 months prior initiation of treatment - External beam radiation < 4 weeks prior initiation of treatment - Iodine contamination defined by a urine ioduria ≥ 50 µg/dl - Gastrointestinal malabsorption or any other condition that in the opinion of the investigator might affect the absorption of the drugs - History of congestive heart failure greater or equal to than New York Heart association (NYHA) Class II, unstable angina, myocardial infarction or stroke within 6 months of the first dose of drug, or cardiac arrhythmia associated with significant cardiovascular impairment and uncontrolled hypertension - Electrocardiogram (ECG) with QT interval (QTc) interval ≥480 msec - Active hemoptysis (bright red blood of at least 0.5 teaspoon) within 2 months prior to the first dose of drug and any other active bleeding, coagulopathy or pathologic condition that would confer a high risk of bleeding. - Active infection requiring systemic therapy - Active malignancy (except for DTC, or definitively treated melanoma in-situ, basal or squamous cell carcinoma of the skin, or carcinoma in-situ of the cervix or bladder) within the past 24 months - Any history of or concomitant medical condition that, in the opinion of the investigator, would compromise subject’s ability to safely complete the protocol - Females who are pregnant or breastfeeding - Patients with an injection of radio-contrast agent within 8 weeks prior enrolment - Previous history of retinal vein occlusion - Previous history of central serous retinopathy - Known hypersensitivity to the study drugs or to any of the excipients
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E.5 End points |
E.5.1 | Primary end point(s) |
The Objective Response Rate: the proportion of patients with a best overall response of Complete Response (CR) or a Partial Response (PR) evaluated 6 months after the first dose of trametinib or trametinib and dabrafenib followed par RAI treatment, in each arm (RAS or BRAFV600E mutation). |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
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E.5.2 | Secondary end point(s) |
- The best overall response (CR+PR) after the first dose of trametinib or trametinib and dabrafenib, - The objective response rate at 1, 3, 6, +/- 12 and 18 months after the first dose of the first course of trametinib or trametinib and dabrafenib. - The objective response rate at 12, 18 months after the first dose of the first course of trametinib or trametinib and dabrafenib for patients not undergoing a second course of treatment - The objective response rate at 1, 3, 6, 12 and 18 months after the first dose of the second administration of trametinib or trametinib and dabrafenib (only given in patients with PR occurring after the first course of treatment) - The Progression free-survival (PFS), defined as the time from the first dose of trametinib or trametinib and dabrafenib to the date of event defined as the first documented progression or death due to any cause. Patient alive without progression will be censured at last follow-up visit. - The Duration of response (DOR) applies only to patients whose best overall response is CR or PR. It is the time from the first documented response (CR or PR) to the first documented disease progression or death due to any cause. - The Disease control rate (CR+PR+SD) is the proportion of patients with a best overall response of Complete Response, Partial Response or Stable Disease (SD) at 1, 3, 6, +/- 12 and 18 months after the first dose of trametinib or trametinib and dabrafenib. - The Objective Response Rate at 1, 3, 6, 12, 18 months after the start of drug according to i) the intensity of FDG uptake before treatment ii) quantitative changes in RAI uptake evaluated on 131I diagnostic WBS iii) plasmatic residual concentration of trametinib+/-dabrafenib - The FDG metabolic response 6 months after treatment according to PERCIST criteria - The changes in serum Tg levels is the proportion of changes >50% in Tg level measured at 1, 3, 6 +/- 12 and 18 months after the first dose of the first course of trametinib or trametinib and dabrafenib and the changes in serum Tg levels is the proportion of changes >50% in Tg level measured at 1, 3, 6, 12 and 18 months after the first dose of the second course of trametinib or trametinib and dabrafenib - Safety and tolerability of trametinib in RAS mutated patients and of trametinib and dabrafenib in BRAFV600E mutated patients, alone and then in combination with 5.5 GBq of 131I will be evaluated with adverse events (AE) experienced throughout the study and assessed according the NCI-CTC AE version 4.0 - Quality of life will be evaluated with EORTC Quality of Life Questionnaire C30 (QLQ-C30) at baseline, d14, d28, d42, 3 and 6 months - The Objective Response Rate at 3, 6, 12, 18 months after the start of drug according to i) the intensity of FDG uptake before treatment ii) quantitative changes in RAI uptake evaluated on 131I diagnostic WBS
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
At 1, 3, 6, +/- 12 and 18 months after the first dose of the first course of trametinib or trametinib and dabrafenib.
At 1, 3, 6, 12 and 18 months after the first dose of the second administration of trametinib or trametinib and dabrafenib (only given in patients with PR occurring after the first course of treatment) |
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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 | Yes |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | Yes |
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 | No |
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.8.2.4 | Number of treatment arms in the trial | 2 |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 13 |
E.8.5 | The trial involves multiple Member States | No |
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
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 5 |
E.8.9.1 | In the Member State concerned months | |
E.8.9.1 | In the Member State concerned days | |