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Encorafenib and Binimetinib Before Local Treatment in Patients With BRAF Mutant Melanoma Metastatic to the Brain

Phase II, Multicentre Clinical Trial to Evaluate the Activity of Encorafenib and Binimetinib Administered Before Local Treatment in Patients With BRAF Mutant Melanoma Metastatic to the Brain

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03898908
Acronym
EBRAIN-MEL
Enrollment
48
Registered
2019-04-02
Start date
2019-07-18
Completion date
2023-07-31
Last updated
2025-05-21

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Metastatic Melanoma, Brain Metastases

Keywords

metastases, melanoma, encorafenib, binimetinib

Brief summary

Phase II clinical trial, with two cohorts of patients included in parallel, all with melanoma BRAF mutated and brain metastases without previous local treatment in the brain. Cohort 1 will include patients with asymptomatic brain metastases and cohort 2 will include patients with symptomatic brain metastasis.

Interventions

DRUGencorafenib

Encorafenib 75mg and 50mg (capsules) for a 450mg daily for oral administration during 56 days and after local radiation treatment. If no progression of disease progression (PD) is reported, treatment will continue until PD, unacceptable toxicity or death.

DRUGbinimetinib

Binimetinib 15mg (tablets) for a 45mg/12 hours for oral administration during 56 days and after local radiation treatment.

The whole brain planning target volume (PTV) will receive 30 Gy in 10 fractions. Treatment will be delivered once daily, 5 fractions per week, over 2 to 2.5 weeks.

RADIATIONRadiosurgery/stereotactic radiosurgery

Dose selection must be based on previously published Radiation Therapy Oncology Group (RTOG) data, with dose modification left up to the treating physician. The total dose will depend on the size of the metastatic lesion(s) and proximity to critical structures. Suggested doses are as follow: 1 fraction x 15-25 Gy; 3 fractions x 9-11 Gy; 5 fractions x 6-7 Gy; or 6 fractions x 5-6 Gy. For GTV \> 20 mm hypofractionated stereotactic radiotherapy could be preferred. Treatment will be delivered once daily, alternate-day, 3 fractions per week.

Sponsors

Pierre Fabre Medicament
CollaboratorINDUSTRY
MFAR
CollaboratorOTHER
Grupo Español Multidisciplinar de Melanoma
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Cohort 1 will include patients with asymptomatic brain metastases and without previous local treatment in the brain (N=48), while cohort 2 will include patients with symptomatic brain metastasis and without previous local treatment in the brain (N=15).

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Written informed consent of approved by the investigator's Institutional Review Board (IRB)/Independent Ethics Committee (IEC), prior to the performance of any trial activities. * Histologically confirmed diagnosis of unresectable metastatic cutaneous melanoma, or unknown primary melanoma with one or more brain metastasis with a diameter of 10 to 50 mm, measured by contrast enhanced MRI. * Presence of a BRAF V600E or V600K mutation, or both, in their tumour tissue. * Barthel Index of Activities of Daily Living \> 10. * Subjects aged ≥ 18 years. * ECOG 0-1 in asymptomatic patients (cohort 1), 0-2 in symptomatic patients (cohort 2). * Adequate haematological function (Haemoglobin ≥ 9 g/dL, may have been transfused; Platelet count ≥ 100 × 109/L; Absolute neutrophil count (ANC) ≥ 1.5 × 109/L.) * Adequate hepatic function defined by a total bilirubin level ≤ 2.0 × the upper limit of normality (ULN) and AST and ALT levels ≤ 2.5 × ULN or AST and ALT levels ≤ 5 x ULN (for subjects with documented metastatic disease to the liver). * Serum Creatinine ≤ 2.0 x ULN or estimated creatinine clearance ≥ 30 mL/min according to the Cockcroft-Gault formula (or local institutional standard method). * Evidence of at least one measurable lesion as detected by radiological or photographic methods according to guidelines based on Response Evaluation Criteria in Solid Tumours (RECIST) version 1.1. * Naïve untreated patients or patients who have progressed on or after prior first line immunotherapy for unresectable locally advanced or metastatic melanoma, but it must have ended at least 6 weeks prior to randomization; prior adjuvant therapy is permitted (e.g. IFN, IL-2 therapy, any other immunotherapy, radiotherapy or chemotherapy), BRAF or MEK inhibitors can be used in the adjuvant setting, providing the relapse does not occur during the adjuvant treatment or within 12 months after the end of it, and providing the adjuvant treatment with targeted therapy did not cause in the patient any grade 3-4 toxicity not including medically serious and reversible/controlled toxicities (ex: GGT elevation, CPK elevation, vomiting). * Steroids or anticonvulsants are allowed if clinically needed and are not being administered in an increasing dose. * Female subjects must either be of non-reproductive potential (ie, post-menopausal by history: ≥60 years old and no menses for ≥1 year without an alternative medical cause; OR history of hysterectomy, OR history of bilateral tubal ligation, OR history of bilateral oophorectomy) or must have a negative serum pregnancy test upon study entry. * Normal functioning of daily living activities. * Willingness and ability to attend scheduled visits, follow the treatment schedule and undergo clinical tests and other study procedures.

Exclusion criteria

* Uveal or mucosal melanoma. * History of leptomeningeal metastases, with the exception that they are only seen in brain MRI and the patient has ECOG 0-1 and no neurological symptoms (except for cohort 2, where symptomatic patients will be allowed if ECOG is 0-2). * Another cancer in the last five years, except for in situ carcinoma of the cervix or squamous cell carcinoma of the skin adequately treated or limited basal cell skin cancer adequately controlled. * History of or current evidence of central serous retinopathy (CSR), retinal vein occlusion (RVO) or history of retinal degenerative disease (RDD). * Any previous systemic chemotherapy treatment, extensive brain radiotherapy, targeted therapy for locally advanced unresectable or metastatic melanoma; Immunotherapy treatment is allowed but must have ended at least 6 weeks prior to randomization. * History of Gilbert's syndrome. * Previous treatment with a BRAF or MEK inhibitor in metastatic setting. This treatment will be allowed in the adjuvant setting (see above). Previous treatments with immunotherapy will be allowed in both the metastatic and adjuvant setting. * Known positive serology for human immunodeficiency virus, or an active hepatitis B or hepatitis C infection, or both. * Impaired cardiovascular function or clinically significant cardiovascular diseases Clinically significant (i.e., active) cardiovascular disease: cerebrovascular accident/stroke (\< 6 months prior to enrolment), myocardial infarction (\< 6 months prior to enrolment), unstable angina, congestive heart failure (≥ New York Heart Association Classification Class II), a LVEF \< 50% evaluated by MUGA or echocardiography, or serious cardiac arrhythmia requiring medication or a triplicate average baseline QTc interval \> 500 ms. * Uncontrolled arterial hypertension despite medical treatment. * Moderate (Child Pugh Class B) or severe (Child Pugh Class C) hepatic impairment. * Impairment of gastrointestinal function. * Neuromuscular disorders associated with high concentrations of creatine kinase. * Pregnant or nursing (lactating) women. * Medical, psychiatric, cognitive or other conditions that may compromise the patient's ability to understand the patient information, give informed consent, comply with the study protocol or complete the study. * Known hypersensitivity to encorafenib, binimetinib or their components. * Persisting toxicity related to prior therapy of Grade \>1 NCI-CTCAE v 4.03; however, alopecia and sensory neuropathy Grade ≤ 2 is acceptable. * Female patients who are pregnant or breastfeeding or male or female patients of reproductive potential who are not willing to employ highly effective birth control from screening to 180 days after the last dose of study treatment. * Known alcohol or drug abuse. * Inability to swallow tablets or capsules. * Total lactase deficiency or glucose-galactose malabsorption.

Design outcomes

Primary

MeasureTime frameDescription
Intracranial Objective Response (iORR) by Modified RECIST 1.1 Before Local Radiotherapy Treatment in Full Dataset24 months after start of treatmentiORR calculated as the proportion of patient with a best overall intracranial response of complete response (CR) or partial response (PR) before local treatment according to modified RECIST 1.1. Modified RECIST 1.1 consists of: Up to 5 intracranial lesions could be selected as target lesions Target lesions might have a longest diameter ≥ 5 mm when evaluated by contrast-enhanced MRI This endpoint was also independently reported in patients with symptomatic and asymptomatic brain metastasis.

Secondary

MeasureTime frameDescription
Intracranial Progression-free Survival (iPFS) by RECIST 1.1Throughout the study period, up to approximately 24 monthsDefined as the time from the date of inclusion to the date of the first documented intracranial disease progression or death due to any cause, whichever occurs first. PFS was determined based on tumor assessment (modified RECIST version 1.1 criteria). The local Investigator's assessments was used for analyses. Those patients who were alive and had not progressed at the last follow-up, date of progression was censored at the date of the last follow-up. Patients with no additional image test other than baseline were censored the day after inclusion.
Extracranial Progression-free Survival (ePFS) in Both CohortsThroughout the study period, up to approximately 24 monthsDefined as the time from the date of inclusion to the date of the first documented extracranial disease progression or death due to any cause, whichever occurs first. PFS was determined based on tumor assessment (RECIST version 1.1 criteria). The local Investigator's assessments was used for analyses. Those patients who were alive and had not progressed at the last follow-up, date of progression was censored at the date of the last follow-up. Patients with no additional image test other than baseline were censored the day after inclusion.
Intracranial Progression-free Ratesat 6 months (week 24), 12 months (week 48) and 24-month (week 96)Proportion of patients free of intracranial progression assessed by modified RECIST at 6 months (week 24), 12 months (week 48) and 24-month (week 96) considering date of inclusion estimated through Kaplan-Meier method
Overall SurvivalThroughout the study period, up to approximately 24 monthsCalculated as the time from date of inclusion to date of death due to any cause.
Duration of Intracranial ResponseThroughout the study period, up to approximately 24 monthsCalculated as the time from the date of first documented CR or PR to the first documented intracranial progression or death due to underlying cancer accoridng to modified RECIST 1.1, in patients with documented intracranial CR or PR before local treatment.
Number of Participants With Treatment-related Adverse Events as Assessed by CTCAE v4.0Throughout the study period, up to approximately 24 monthsNumber of patients experiencing treatment related adverse events. These events were graded accrding to CTCAE, a scale that ranges from 0 (less intense; no event) to 5 (death) . Here we report the number of patients experiencing any grade toxicities and the number of patients experiencing high grade (grade 3-5) toxicities.
Change on Quality of Life at Week 8 in Both Cohorts Based on the EORTC QLQ 30 Scale8 weeksThe EORTC QLQ-C30 questionnaire is validated for cancer. It is composed of 30 questions or items that assess QoL. The questionnaire is structured in 5 functional scales physical functioning, daily activities, emotional functioning, cognitive functioning and social functioning), 3 symptom scales (fatigue, pain and nausea, vomiting), 1 global health status scale, and 6 independent items (dyspnea, insomnia, anorexia, constipation, diarrhea and economic impact). Values between 1 and 4 (1: not at all, 2: a little, 3: quite, 4: a lot) are assigned according to the patient's responses to the item, only in items 29 and 30 are they evaluated with a score of 1 to 7 (1: dreadful, 7: excellent). The scores obtained are standardized and a score between 0 and 100 is obtained, which determines the level of impact of the cancer on the patient on each of the scales. Higher values indicate better performance
Change on Quality of Life at Week 24 in Both Cohorts Based on the EORTC QLQ 30 Scale24 weeksThe EORTC QLQ-C30 questionnaire is validated for cancer. It is composed of 30 questions or items that assess QoL. The questionnaire is structured in 5 functional scales physical functioning, daily activities, emotional functioning, cognitive functioning and social functioning), 3 symptom scales (fatigue, pain and nausea, vomiting), 1 global health status scale, and 6 independent items (dyspnea, insomnia, anorexia, constipation, diarrhea and economic impact). Values between 1 and 4 (1: not at all, 2: a little, 3: quite, 4: a lot) are assigned according to the patient's responses to the item, only in items 29 and 30 are they evaluated with a score of 1 to 7 (1: dreadful, 7: excellent). The scores obtained are standardized and a score between 0 and 100 is obtained, which determines the level of impact of the cancer on the patient on each of the scales. Higher values indicate better performance
Extracranial Progression-free Ratesat 6 months (week 24), 12 months (week 48) and 24-month (week 96)Proportion of patients free of extracranial progression assessed by modified RECIST at 6 months (week 24), 12 months (week 48) and 24-month (week 96) considering date of inclusion estimated through Kaplan-Meier method
Overall Survival Ratesat 6 months, 12 month and 24-monthProportion of of patients alive at 6 months, 12 month and 24-month considering date of inclusion estimated using Kaplan-Meier. Patients alive at the moment of the analysis were censored on the date of their last follow-up.

Countries

Spain

Participant flow

Recruitment details

the initial sample size was set at 48 patients, to ensure obtaining 38 evaluable patients. The cohort of symptomatic patients was exploratory and no formal sample calculation was performed, anticipating the inclusion of up to 15 patients.The trial was amended and patients were included irrespective of symptomatology.

Participants by arm

ArmCount
COMBO450
Encorafenib - Orally, 75 mg and 50 mg capsules Binimetinib - Orally, 15 mg tablets In each cohort, patients will be treated with encorafenib 450 mg once daily and binimetinib 45 mg twice daily until PD or death. encorafenib: Encorafenib 75mg and 50mg (capsules) for a 450mg daily for oral administration during 56 days and after local radiation treatment. If no progression of disease progression (PD) is reported, treatment will continue until PD, unacceptable toxicity or death. binimetinib: Binimetinib 15mg (tablets) for a 45mg/12 hours for oral administration during 56 days and after local radiation treatment. Whole brain radiation therapy: The whole brain planning target volume (PTV) will receive 30 Gy in 10 fractions. Treatment will be delivered once daily, 5 fractions per week, over 2 to 2.5 weeks. Radiosurgery/stereotactic radiosurgery: Dose selection must be based on previously published Radiation Therapy Oncology Group (RTOG) data, with dose modification left up to the treating physician. The total dose will depend on the size of the metastatic lesion(s) and proximity to critical structures. Suggested doses are as follow: 1 fraction x 15-25 Gy; 3 fractions x 9-11 Gy; 5 fractions x 6-7 Gy; or 6 fractions x 5-6 Gy. For GTV \> 20 mm hypofractionated stereotactic radiotherapy could be preferred. Treatment will be delivered once daily, alternate-day, 3 fractions per week.
48
Total48

Baseline characteristics

CharacteristicCOMBO450
Age, Continuous54 years
Barthel Index
Moderate dependent (13-18)
6 Participants
Barthel Index
NA
2 Participants
Barthel Index
Severe dependent (5-12)
4 Participants
Barthel Index
Slight dependent (19-20)
33 Participants
Barthel Index
Total dependent (0-4)
3 Participants
BRAF genotype
V600E
Mutated
41 Participants
BRAF genotype
V600E
Not mutated
7 Participants
BRAF genotype
V600K
Mutated
11 Participants
BRAF genotype
V600K
Not mutated
37 Participants
BRAF genotype
V600 other
Mutated
25 Participants
BRAF genotype
V600 other
Not mutated
23 Participants
BRAF genotype
V600R
Mutated
6 Participants
BRAF genotype
V600R
Not mutated
42 Participants
Brain symptoms
Asymptomatic
25 Participants
Brain symptoms
Symptomatic
23 Participants
Corticosteroid dose8 milligram per day
Corticosteroids use at baseline
No
15 Participants
Corticosteroids use at baseline
Yes
33 Participants
Eastern cooperative oncology group (ECOG) performance status (PS) at baseline
Score 0
26 Participants
Eastern cooperative oncology group (ECOG) performance status (PS) at baseline
Score 1
20 Participants
Eastern cooperative oncology group (ECOG) performance status (PS) at baseline
Score 2
2 Participants
Extracranial metastases
No
7 Participants
Extracranial metastases
Yes
41 Participants
Lactate dehydrogenase (LDH) levels
> ULN
21 Participants
Lactate dehydrogenase (LDH) levels
Unknown
1 Participants
Lactate dehydrogenase (LDH) levels
≤ upper limit normal (ULN)
26 Participants
Number of brain target lesion
1 intracranial lesion
21 Participants
Number of brain target lesion
2 intracranial lesions
15 Participants
Number of brain target lesion
3 or more intracranial lesions
12 Participants
Previous anti-PD-1 based immunotherapy
Anti PD-1
11 Participants
Previous anti-PD-1 based immunotherapy
Anti PD-1 / anti CTLA-4
5 Participants
Previous anti-PD-1 based immunotherapy
No previous PD-L1
32 Participants
Race and Ethnicity Not Collected— Participants
Radiotherapy received in the EBRAIN trial
Fractioned stereotactic radiotherapy (FSRT)
6 Participants
Radiotherapy received in the EBRAIN trial
None
17 Participants
Radiotherapy received in the EBRAIN trial
Radiosurgery (RS)
10 Participants
Radiotherapy received in the EBRAIN trial
Whole brain radiotherapy (WBRT)
15 Participants
Region of Enrollment
Spain
48 participants
Sex: Female, Male
Female
24 Participants
Sex: Female, Male
Male
24 Participants
Sum of longest diameters of intracranial target lesions26.5 millimeters

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
33 / 48
other
Total, other adverse events
48 / 48
serious
Total, serious adverse events
22 / 48

Outcome results

Primary

Intracranial Objective Response (iORR) by Modified RECIST 1.1 Before Local Radiotherapy Treatment in Full Dataset

iORR calculated as the proportion of patient with a best overall intracranial response of complete response (CR) or partial response (PR) before local treatment according to modified RECIST 1.1. Modified RECIST 1.1 consists of: Up to 5 intracranial lesions could be selected as target lesions Target lesions might have a longest diameter ≥ 5 mm when evaluated by contrast-enhanced MRI This endpoint was also independently reported in patients with symptomatic and asymptomatic brain metastasis.

Time frame: 24 months after start of treatment

Population: The endpoint is calculated for the full dataset and also in two subgroups with symptomatic or asymptomatic brain metastasis, respectively.

ArmMeasureGroupCategoryValue (COUNT_OF_PARTICIPANTS)
COMBO450Intracranial Objective Response (iORR) by Modified RECIST 1.1 Before Local Radiotherapy Treatment in Full DatasetFull analysis setPatients with intracranial response34 Participants
COMBO450Intracranial Objective Response (iORR) by Modified RECIST 1.1 Before Local Radiotherapy Treatment in Full DatasetFull analysis setPatients with NO intracranial response13 Participants
COMBO450Intracranial Objective Response (iORR) by Modified RECIST 1.1 Before Local Radiotherapy Treatment in Full DatasetFull analysis setNot evaluable1 Participants
COMBO450Intracranial Objective Response (iORR) by Modified RECIST 1.1 Before Local Radiotherapy Treatment in Full DatasetAsymptomatic brain metastasisPatients with intracranial response20 Participants
COMBO450Intracranial Objective Response (iORR) by Modified RECIST 1.1 Before Local Radiotherapy Treatment in Full DatasetAsymptomatic brain metastasisPatients with NO intracranial response5 Participants
COMBO450Intracranial Objective Response (iORR) by Modified RECIST 1.1 Before Local Radiotherapy Treatment in Full DatasetAsymptomatic brain metastasisNot evaluable0 Participants
COMBO450Intracranial Objective Response (iORR) by Modified RECIST 1.1 Before Local Radiotherapy Treatment in Full DatasetSymptomatic brain metastasisPatients with intracranial response14 Participants
COMBO450Intracranial Objective Response (iORR) by Modified RECIST 1.1 Before Local Radiotherapy Treatment in Full DatasetSymptomatic brain metastasisPatients with NO intracranial response8 Participants
COMBO450Intracranial Objective Response (iORR) by Modified RECIST 1.1 Before Local Radiotherapy Treatment in Full DatasetSymptomatic brain metastasisNot evaluable1 Participants
Secondary

Change on Quality of Life at Week 24 in Both Cohorts Based on the EORTC QLQ 30 Scale

The EORTC QLQ-C30 questionnaire is validated for cancer. It is composed of 30 questions or items that assess QoL. The questionnaire is structured in 5 functional scales physical functioning, daily activities, emotional functioning, cognitive functioning and social functioning), 3 symptom scales (fatigue, pain and nausea, vomiting), 1 global health status scale, and 6 independent items (dyspnea, insomnia, anorexia, constipation, diarrhea and economic impact). Values between 1 and 4 (1: not at all, 2: a little, 3: quite, 4: a lot) are assigned according to the patient's responses to the item, only in items 29 and 30 are they evaluated with a score of 1 to 7 (1: dreadful, 7: excellent). The scores obtained are standardized and a score between 0 and 100 is obtained, which determines the level of impact of the cancer on the patient on each of the scales. Higher values indicate better performance

Time frame: 24 weeks

Population: Only patients who completed the quality of life questionnaires

ArmMeasureGroupValue (MEDIAN)
COMBO450Change on Quality of Life at Week 24 in Both Cohorts Based on the EORTC QLQ 30 ScaleWeek 2474.9 Score
COMBO450Change on Quality of Life at Week 24 in Both Cohorts Based on the EORTC QLQ 30 ScaleBaseline78.4 Score
Comparison: Comparison between baseline and W24p-value: 0.754Wilcoxon (Mann-Whitney)
Secondary

Change on Quality of Life at Week 8 in Both Cohorts Based on the EORTC QLQ 30 Scale

The EORTC QLQ-C30 questionnaire is validated for cancer. It is composed of 30 questions or items that assess QoL. The questionnaire is structured in 5 functional scales physical functioning, daily activities, emotional functioning, cognitive functioning and social functioning), 3 symptom scales (fatigue, pain and nausea, vomiting), 1 global health status scale, and 6 independent items (dyspnea, insomnia, anorexia, constipation, diarrhea and economic impact). Values between 1 and 4 (1: not at all, 2: a little, 3: quite, 4: a lot) are assigned according to the patient's responses to the item, only in items 29 and 30 are they evaluated with a score of 1 to 7 (1: dreadful, 7: excellent). The scores obtained are standardized and a score between 0 and 100 is obtained, which determines the level of impact of the cancer on the patient on each of the scales. Higher values indicate better performance

Time frame: 8 weeks

Population: Only patients who completed the quality of life questionnaires

ArmMeasureGroupValue (MEDIAN)
COMBO450Change on Quality of Life at Week 8 in Both Cohorts Based on the EORTC QLQ 30 ScaleWeek 885.5 Score
COMBO450Change on Quality of Life at Week 8 in Both Cohorts Based on the EORTC QLQ 30 ScaleBaseline78.4 Score
Comparison: Comparison between baseline and Week 8p-value: 0.015Wilcoxon (Mann-Whitney)
Secondary

Duration of Intracranial Response

Calculated as the time from the date of first documented CR or PR to the first documented intracranial progression or death due to underlying cancer accoridng to modified RECIST 1.1, in patients with documented intracranial CR or PR before local treatment.

Time frame: Throughout the study period, up to approximately 24 months

Population: Only patients who have an intracranial responses were analyzed for its duration.

ArmMeasureValue (MEDIAN)
COMBO450Duration of Intracranial Response5.6 months
Secondary

Extracranial Progression-free Rates

Proportion of patients free of extracranial progression assessed by modified RECIST at 6 months (week 24), 12 months (week 48) and 24-month (week 96) considering date of inclusion estimated through Kaplan-Meier method

Time frame: at 6 months (week 24), 12 months (week 48) and 24-month (week 96)

ArmMeasureGroupValue (NUMBER)
COMBO450Extracranial Progression-free Rates6 months64.1 Percentage of patients free of PD
COMBO450Extracranial Progression-free Rates12 months31.2 Percentage of patients free of PD
COMBO450Extracranial Progression-free Rates24 months5.8 Percentage of patients free of PD
Secondary

Extracranial Progression-free Survival (ePFS) in Both Cohorts

Defined as the time from the date of inclusion to the date of the first documented extracranial disease progression or death due to any cause, whichever occurs first. PFS was determined based on tumor assessment (RECIST version 1.1 criteria). The local Investigator's assessments was used for analyses. Those patients who were alive and had not progressed at the last follow-up, date of progression was censored at the date of the last follow-up. Patients with no additional image test other than baseline were censored the day after inclusion.

Time frame: Throughout the study period, up to approximately 24 months

ArmMeasureValue (MEDIAN)
COMBO450Extracranial Progression-free Survival (ePFS) in Both Cohorts7.7 months
Secondary

Intracranial Progression-free Rates

Proportion of patients free of intracranial progression assessed by modified RECIST at 6 months (week 24), 12 months (week 48) and 24-month (week 96) considering date of inclusion estimated through Kaplan-Meier method

Time frame: at 6 months (week 24), 12 months (week 48) and 24-month (week 96)

ArmMeasureGroupValue (NUMBER)
COMBO450Intracranial Progression-free Rates12 months29.5 Percentage of patients free of PD
COMBO450Intracranial Progression-free Rates24 months5.5 Percentage of patients free of PD
COMBO450Intracranial Progression-free Rates6 months66.8 Percentage of patients free of PD
Secondary

Intracranial Progression-free Survival (iPFS) by RECIST 1.1

Defined as the time from the date of inclusion to the date of the first documented intracranial disease progression or death due to any cause, whichever occurs first. PFS was determined based on tumor assessment (modified RECIST version 1.1 criteria). The local Investigator's assessments was used for analyses. Those patients who were alive and had not progressed at the last follow-up, date of progression was censored at the date of the last follow-up. Patients with no additional image test other than baseline were censored the day after inclusion.

Time frame: Throughout the study period, up to approximately 24 months

ArmMeasureValue (MEDIAN)
COMBO450Intracranial Progression-free Survival (iPFS) by RECIST 1.18.5 months
Secondary

Number of Participants With Treatment-related Adverse Events as Assessed by CTCAE v4.0

Number of patients experiencing treatment related adverse events. These events were graded accrding to CTCAE, a scale that ranges from 0 (less intense; no event) to 5 (death) . Here we report the number of patients experiencing any grade toxicities and the number of patients experiencing high grade (grade 3-5) toxicities.

Time frame: Throughout the study period, up to approximately 24 months

ArmMeasureGroupCategoryValue (COUNT_OF_PARTICIPANTS)
COMBO450Number of Participants With Treatment-related Adverse Events as Assessed by CTCAE v4.0Any grade toxicitiesExperienced Toxicity40 Participants
COMBO450Number of Participants With Treatment-related Adverse Events as Assessed by CTCAE v4.0Any grade toxicitiesDo NOT experienced toxicity8 Participants
COMBO450Number of Participants With Treatment-related Adverse Events as Assessed by CTCAE v4.0Grade 3-5 toxicitiesExperienced Toxicity12 Participants
COMBO450Number of Participants With Treatment-related Adverse Events as Assessed by CTCAE v4.0Grade 3-5 toxicitiesDo NOT experienced toxicity36 Participants
Secondary

Overall Survival

Calculated as the time from date of inclusion to date of death due to any cause.

Time frame: Throughout the study period, up to approximately 24 months

ArmMeasureValue (MEDIAN)
COMBO450Overall Survival15.9 months
Secondary

Overall Survival Rates

Proportion of of patients alive at 6 months, 12 month and 24-month considering date of inclusion estimated using Kaplan-Meier. Patients alive at the moment of the analysis were censored on the date of their last follow-up.

Time frame: at 6 months, 12 month and 24-month

ArmMeasureGroupValue (NUMBER)
COMBO450Overall Survival Rates6 months91.6 Percentage of patients alive
COMBO450Overall Survival Rates12 months59.2 Percentage of patients alive
COMBO450Overall Survival Rates24 months15.5 Percentage of patients alive

Source: ClinicalTrials.gov · Data processed: Feb 14, 2026