A Phase 2 interventional study of Treatment by regorafenib and best supportive care in Bone Sarcoma and Osteosarcoma, sponsored by Centre Leon Berard. Recruiting at 16 sites in France. Open to participants aged 12 Years and older. Per ClinicalTrials.gov, last updated 2026-02-17.
Sponsored by Centre Leon Berard · Phase 2, Interventional, and Treatment
This is a multicenter phase II study concerning patients with high-grade bone sarcoma (HGBS) without complete remission after standard treatment at diagnosis or at relapse.
Patients will be treated with regorafenib + best supportive care (BSC) for a maximum of 12 months as maintenance therapy after standard line therapy completion.
Progression free rate (PFR) data will be collected and analysed for all included patients to evaluate if regorafenib + BSC can be considered as an interesting treatment for further investigations in this indication.
This is a multicenter phase II study.
Patients with evaluable unresectable residual disease will be accrued after they completed standard of care, consisting of:
Patients who meet the eligibility criteria will receive regorafenib + best supportive care (BSC) as maintenance treatment for a maximum 12 months period.
After their eligibility has been confirmed, patients will receive regorafenib until disease progression, or for a maximum of 12 months, or unacceptable toxicity or willingness to stop, whichever occurs first.
After the completion of the maintenance therapy (12 months) patients will be followed-up until the first radiological disease progression, unless a premature disease progression occurred. All patients will be followed-up until the data cut-off (12 months after the last inclusion).
The vital status will be updated once for all patients at 24 months after the last inclusion, based on patient's medical file.
258 studies on the registry are indexed under Bone Neoplasms; 68 are open to participants now.
This study's planned enrollment of 36 is below the median of 44 across 163 interventional studies indexed under Bone Neoplasms.
Browse Bone Neoplasms studies →Centre Leon Berard is the lead sponsor of 210 studies on the registry; 62 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
I1. Age ≥ 12 years at the day of consenting to the study;
I2. Patients must have confirmed high-grade sarcomas of bone primary localisation, including but not limited to: Osteosarcomas, Ewing sarcomas, Chondrosarcomas, Undifferenciated Pleomorphic Sarcomas (UPS), Leiomyosarcomas (LMS) and Angiosarcomas
I3. Evaluable residual disease not amenable to resection after multimodal treatment principles either at diagnosis (after standard multimodal treatment based on the histological subtype) or at relapse (chemotherapy)
I4. Non progressive disease (defined by the investigator according to the version 1.1 Appendix 1) at study entry;
I5. Interval between the date of last anticancer treatment (chemotherapy or surgery) and the start date of regorafenib: at least 4 weeks but no longer than 2 months;
I6. of greater than 6 months;
I7. (ECOG) performance status \< 2 ( ≥ 70%) (Appendix 2);
I8. Adequate bone marrow and organ function defined by the following laboratory results:
a. Bone marrow: i. ≥ 1.5 Giga/l ii. ≥ 100 Giga/l iii. ≥ 9 g/dl
b. Hepatic function: i. (AST) and Alanine aminotransferase (ALT) ≤ 2.5 x (ULN) (≤ 5.0 × ULN for patients with liver involvement of their cancer) ii. ≤1.5 X ULN iii. Alkaline phosphatase ≤ 2.5 x ULN (≤ 5 x ULN in patient with liver involvement of their cancer). If Alkaline phosphatase > 2.5 ULN, hepatic isoenzymes 5-nucleotidase or gamma-glutamyltransferase (GGT) tests must be performed; hepatic isoenzymes 5-nucleotidase must be within the normal range and/or GGT \< 1.5 x ULN.
c. Renal function: i. Serum creatinine ≤ 1.5 x ULN ii. (GFR) ≥ 30 ml/min/1.73m2 according to the Modified Diet in Renal Disease (MDRD) abbreviated formula iii. Spot urine must not show ≥ 1 "+" protein in urine or the patient will require a repeat urine analysis. If repeat urinalysis shows 1 "+" protein or more, a 24-hour urine collection will be required and must show total protein excretion \< 1000 mg/24 hours
d. Coagulation: (INR)/Partial Thromboplastin Time (PTT) ≤1.5 x ULN; Patients who are therapeutically treated with an agent such as warfarin or heparin will be allowed to participate provided that no prior evidence of underlying abnormality in coagulation parameters exists. Close monitoring of at least weekly evaluations will be performed until INR/PTT is stable based on a measurement that is pre-dose as defined by the local standard of care;
e. Pancreatic function: Lipase ≤ 1.5 x ULN
I9. Recovery to anticancer-treatment related v5 Grade 0 or 1 level or recovery to baseline preceding the prior treatment from any previous drug/procedure related toxicity (except alopecia, anaemia, and hypothyroidism);
I10. Women of and male patients must agree to use adequate (including at least the use of condoms) for the duration of treatment and for 7 months (210 days) in women of childbearing potential or 4 months (120 days) in men sexually active with women of childbearing potential after the last dose of regorafenib
I11. Patients, and their parents when applicable, must sign and date an document indicating that they have been informed of all the pertinent aspects of the trial prior to enrolment;
I12. Patients must be willing and able to comply with scheduled visits, treatment plan, laboratory tests and other study procedures;
I13. Patients affiliated to the Social Security System
I14. Body Surface Area (BSA) ≥ 1.30m² at the time of consenting to the study
EXCLUSION CRITERIA:
E1. Prior treatment with any VEGFR inhibitor (thus, any prior exposure to regorafenib, sunitinib, sorafenib, pazopanib, bevacizumab, or other VEGFR inhibitor);
E2. All soft tissue sarcomas (including but not limited to soft tissue osteosarcoma), and chordomas;
E3. Prior history of other than study disease (except for basal cell or squamous cell carcinoma of the skin or carcinoma in situ of the cervix) within 3 years prior to randomization;
E4. Cardiovascular dysfunction defined by:
E5. Major surgical procedure, open or significant traumatic injury within 28 days before the first study drug administration;
E6. Ongoing infection > Grade 2 according to v5;
E7. Known history of infection;
Nota Bene: Subjects with diagnosed human immunodeficiency virus (HIV) are eligible to participate in the study if they meet the following criteria :
E8. Active or chronic or C requiring treatment with antiviral therapy; Nota Bene: Subjects with a history of hepatitis B or C who have normal (ALT) and are hepatitis B surface antigen negative and/or have undetectable are eligible
E9. Dehydration according to NCI-CTCAE v5 Grade >1;
E10. Difficulties to swallow oral medication and/or any mal-absorption condition and/or any Gastrointestinal (GI) disease that may significantly alter the absorption of regorafenib (e.g., ulcerative diseases, uncontrolled nausea, vomiting, diarrhoea, malabsorption syndrome, or small bowel resection);
E11. Patients with seizure disorder requiring medication;
E12. Concurrent enrolment in another clinical trial in which therapies are administered;
E13. Known to the active substance or to any of the ;
E14. Pregnant women, women who are likely to become pregnant or are breast-feeding. Women of must have a negative serum β-Human Chorionic Gonadotropin (HCG) pregnancy test within 7 days prior randomization;
E15. Patients with any psychological, familial, sociological or geographical condition potentially hampering compliance with the study protocol and follow-up schedule; those conditions should be discussed with the patient before registration in the trial;
E16. Patients with history of non-compliance to medical regimens or unwilling or unable to comply with the protocol;
E17. Interstitial lung disease with ongoing signs and symptoms at the time of ;
E18. Non-healing wound, non-healing ulcer, or non-healing bone fracture;
E19. Patients with evidence or history of any bleeding diathesis, irrespective of severity;
E20. Any haemorrhage or bleeding event ≥ CTCAE v5 Grade 3 within 4 weeks prior to the first study drug administration;
E21. unrelated systemic illness (e.g., serious infection or significant cardiac, pulmonary, hepatic, or other organ dysfunction) that would compromise the patient's ability to tolerate study treatment or would likely interfere with study procedures or results;
E22. Patients using prohibited concomitant and/or concurrent medications (see section "Prohibited concomitant/concurrent treatments);
E23. Patients under tutorship or curatorship.
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
The diagnosis was confirmed by looking at a sample under a microscope: tissue from a biopsy or surgery (histology), or cells from a fluid or needle sample (cytology).
Your pathology report is the document that shows this.
The standard rules for measuring tumours on CT or MRI scans, to tell whether a cancer is shrinking, stable or growing during treatment.
“Measurable disease per RECIST 1.1” usually means at least one tumour 10 mm or more at its longest on a CT scan, or a lymph node 15 mm or more across its short axis.
The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.
A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.
Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.
A 0–100 scale of how well someone can carry out everyday activities. 100 is no complaints and no signs of illness; 70 is able to look after yourself but not to work or keep up normal activity; 50 is needing considerable help and frequent medical care.
Studies often ask for 60 or 70 and above. Your doctor gives the score.
The number of neutrophils, white blood cells that help fight infection, in a given amount of blood. Too few raises the risk of infection.
It is a count, not a percentage of the white cells. Limits are written in units that mean the same: ≥ 1.5 × 10⁹/L is ≥ 1,500 per mm³ (µL). Each lab has its own reference range.
Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.
The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).
Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.
Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.
The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.
“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.
A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.
Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.
GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².
Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.
Blood tests of how long blood takes to clot. The INR is the prothrombin time (PT) put on a common scale; about 1 is usual for someone not taking a blood thinner.
Criteria often make an exception for people on a blood thinner such as warfarin, whose INR is raised on purpose.
The US National Cancer Institute’s scale of how severe an adverse event is — any unwanted medical event during a study, such as a symptom, an illness or an abnormal test result, whether or not a treatment caused it. Whether it did is judged separately.
“Side effects of earlier treatment resolved to grade 1 or less” means they have settled to mild or gone.
Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).
Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.
Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.
The share of blood the heart’s main pumping chamber (the left ventricle) pushes out with each beat, measured by an echocardiogram (heart ultrasound) or a MUGA scan. About 50–70% is normal.
The New York Heart Association’s four classes of how much heart failure limits physical activity.
Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.
A “mini-stroke”: temporary stroke-like symptoms caused by reduced blood flow to part of the brain, spinal cord or eye, without signs of a new stroke on a scan.
Stroke symptoms need emergency care at once, even if they go away.
A biopsy takes a small piece of tissue to examine. “Archival tissue” is a sample already taken, for example at diagnosis, and kept by the hospital.
Whether a stored sample will do depends on when it was taken, how much there is and what the study needs. Ask whether the study accepts your stored sample or needs a new biopsy.
The human immunodeficiency virus, which weakens the immune system.
Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.
Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.
Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.
Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.
After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.
A drug or device being studied in a clinical trial.
It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.
An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.
The other ingredients in a medicine besides the active drug, such as fillers, colours or preservatives.
Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.
Histologically or cytologically confirmed
The diagnosis was confirmed by looking at a sample under a microscope: tissue from a biopsy or surgery (histology), or cells from a fluid or needle sample (cytology).
Your pathology report is the document that shows this.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
RECIST
The standard rules for measuring tumours on CT or MRI scans, to tell whether a cancer is shrinking, stable or growing during treatment.
“Measurable disease per RECIST 1.1” usually means at least one tumour 10 mm or more at its longest on a CT scan, or a lymph node 15 mm or more across its short axis.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Life expectancy
The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ECOG performance status
A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.
Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Karnofsky performance status (KPS)
A 0–100 scale of how well someone can carry out everyday activities. 100 is no complaints and no signs of illness; 70 is able to look after yourself but not to work or keep up normal activity; 50 is needing considerable help and frequent medical care.
Studies often ask for 60 or 70 and above. Your doctor gives the score.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Absolute neutrophil count (ANC)
The number of neutrophils, white blood cells that help fight infection, in a given amount of blood. Too few raises the risk of infection.
It is a count, not a percentage of the white cells. Limits are written in units that mean the same: ≥ 1.5 × 10⁹/L is ≥ 1,500 per mm³ (µL). Each lab has its own reference range.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Platelets
Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Hemoglobin (Hb)
The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ALT and AST (liver enzymes)
Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.
Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ULN (upper limit of normal)
The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.
“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Bilirubin
A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.
Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
GFR and eGFR (kidney filtering)
GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².
Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
INR, PT and aPTT (clotting tests)
Blood tests of how long blood takes to clot. The INR is the prothrombin time (PT) put on a common scale; about 1 is usual for someone not taking a blood thinner.
Criteria often make an exception for people on a blood thinner such as warfarin, whose INR is raised on purpose.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
CTCAE grade
The US National Cancer Institute’s scale of how severe an adverse event is — any unwanted medical event during a study, such as a symptom, an illness or an abnormal test result, whether or not a treatment caused it. Whether it did is judged separately.
“Side effects of earlier treatment resolved to grade 1 or less” means they have settled to mild or gone.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Childbearing potential
Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).
Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Contraception
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Cancer (malignancy)
Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.
Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
LVEF (left ventricular ejection fraction)
The share of blood the heart’s main pumping chamber (the left ventricle) pushes out with each beat, measured by an echocardiogram (heart ultrasound) or a MUGA scan. About 50–70% is normal.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
NYHA class (heart failure)
The New York Heart Association’s four classes of how much heart failure limits physical activity.
Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
TIA (transient ischaemic attack)
A “mini-stroke”: temporary stroke-like symptoms caused by reduced blood flow to part of the brain, spinal cord or eye, without signs of a new stroke on a scan.
Stroke symptoms need emergency care at once, even if they go away.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Biopsy and archival tissue
A biopsy takes a small piece of tissue to examine. “Archival tissue” is a sample already taken, for example at diagnosis, and kept by the hospital.
Whether a stored sample will do depends on when it was taken, how much there is and what the study needs. Ask whether the study accepts your stored sample or needs a new biopsy.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
HIV
The human immunodeficiency virus, which weakens the immune system.
Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Hepatitis B tests
Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.
Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Hepatitis C tests
Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.
After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Investigational drug or device
A drug or device being studied in a clinical trial.
It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Hypersensitivity
An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Excipients
The other ingredients in a medicine besides the active drug, such as fillers, colours or preservatives.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Clinically significant
Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Treatment will be divided in 28 days cycles, including a 21-day period of treatment by regorafenib and best supportive care followed by a 7-day period of rest. In case of toxicity, dose can be reduced or treatment interrupted according to Specific Product Characteristics (SPC). Patients can receive up to a maximum of 13 cycles (maximum treatment period : 12 Months).
Drug: Treatment by regorafenib and best supportive care
Treatment for 13 cycles (12 months) maximum. During each cycle : * patients ≥ 16 years old and patients \<16 old with Body Surface Area (BSA) ≥ 1,70 m2 will take 3 tablets, once a day, corresponding to a total of 120 mg Regorafenib, during 21 days, followed by 7 days without treatment. * patients \< 16 years old with a 1,30 m2 ≤ BSA ≥ 1,70 m2 will take 2 tablets, once a day, corresponding to a total of 80 mg Regorafenib, during 21 days, followed by 7 days without treatment
Also known as: Experimental arm
Progression-Free Rate at 4 months (4m-PFR)
The Progression-Free Rate at 4 months (4m-PFR) will be defined as the proportion of patients with a complete response, a partial response or stable disease, confirmed on tumour assessments according to the RECIST V1.1 at 4 months (16 weeks) after the date of regorafenib + BSC treatment initiation. Patients with a non-progressive disease at 16 ± 2 weeks after the date of regorafenib + BSC treatment initiation will be considered as "success" patients. Patients with a progressive disease and patients who died from any cause at 16 ± 2 weeks after the date of regorafenib + BSC treatment initiation will be considered as "failure" patients. At the time of analysis, if at least 18 "successes" are observed among the 36 analyzed patients, the regorafenib + BSC treatment will be considered as interesting for further investigations in this indication.
Time frame: Up to 16 weeks after the date of regorafenib + BSC treatment initiation
Progression-Free Survival (PFS)
PFS will be described from date of regorafenib + BSC treatment initiation to the date first documented disease progression according to RECIST V1.1 or the date of death due to any cause. Patients alive without progression at the time of data cut-off will be censored at the time of latest tumour evaluation.
Time frame: Up to 3 years
Objective Response Rate (ORR)
The Objective Response Rate (ORR) will be defined as the proportion of patients with a best overall response of Complete Response (CR) or Partial Response (PR) (RECIST V1.1)
Time frame: Up to 3 years
Disease Control Rate (DCR) at 2 months
The Disease Control Rate (DCR) will be defined as the proportion of patients with a best overall response of CR, PR or Stable Disease (SD) (RECIST V1.1) 2 months after randomization
Time frame: 2 months
Disease Control Rate (DCR) at 4 months
The Disease Control Rate (DCR) will be defined as the proportion of patients with a best overall response of CR, PR or Stable Disease (SD) (RECIST V1.1) 4 months after randomization
Time frame: 4 months
Overall Survival (OS)
The Overall Survival (OS) will be defined as the time from date of regorafenib +BSC treatment initiation to the date of death, from any cause. Patient not known to have died at the time of analysis will be censored based on the last recorded date on which the patient was known to be alive.
Time frame: Up to 3 years
Quality of Life (QoL)
The patient's Quality of Life (QoL) will be assessed using the EORTC Quality Of Life Questionnaire (QLQ)-C30 file. Scores will be calculated at each time point according to the scoring manuals. Descriptive statistics will be used to evaluate baseline scores and evolution of scores from baseline to each time point. Data will be compared between arms using the Student's t-test. The QoL data will also be presented graphically if deemed relevant.
Time frame: Up to 1 year
Tolerance profile of treatment
The safety will be described mainly on the frequency of adverse events (AE) coded using the common toxicity criteria (NCI-CTCAE v5.0) grade. Descriptive statistics will be provided for characterizing and assessing patient tolerance to treatment. AE will be coded according to the MedDRA®.
Time frame: Up to 3 years
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