Skip to content

BELIEF (Bevacizumab and ErLotinib In EGFR Mut+ NSCLC)

An Open-label Phase II Trial of Erlotinib and Bevacizumab in Patients With Advanced Non-small Cell Lung Cancer and Activating EGFR Mutations

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01562028
Acronym
BELIEF
Enrollment
109
Registered
2012-03-23
Start date
2012-06-01
Completion date
2018-10-31
Last updated
2026-08-26

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

Conditions

Lung Cancer

Keywords

non small cell lung cancer, advanced, non-squamous, EGFR, mutations

Brief summary

Rationale: Advanced non-small-cell lung cancer (NSCLC) patients harbouring epidermal growth factor receptor (EGFR) mutations (del19 or L858R) show an impressive progression-free survival between 9 and 14 months when treated with erlotinib. However, the presence of EGFR mutations can only imperfectly predict outcome. The investigators hypothesize that progression-free survival could be influenced both by the pretreatment EGFR T790M mutation and by components of DNA repair pathways. The investigators propose a model of treatment whereby patients with EGFR mutations (single or with T790M) can attain a benefit with longer overall PFS when treated with erlotinib plus bevacizumab. When the patients are grouped by BRCA1 mRNA levels and T790M the hypothesis is that the combination of erlotinib plus bevacizumab can improve the PFS in all subgroups.

Detailed description

Objectives: 1. To determine long-term outcome of patients with advanced non-squamous NSCLC harbouring EGFR mutations with or without T790M mutation at diagnosis and treated with the combination of erlotinib and bevacizumab. Primary endpoint: progression-free survival 2. To evaluate the efficacy and tolerability of the combination 3. To evaluate the correlation of BRCA1 mRNA and AEG-1 mRNA expression and T790M with progression-free survival 4. To monitor EGFR mutations (including T790M) in serum and plasma longitudinally 5. To evaluate molecular biomarkers related to EGFR TKI and bevacizumab Design: This is a multinational, multi-center phase II trial of erlotinib plus bevacizumab in patients with advanced non-squamous NSCLC harbouring EGFR mutations confirmed by central re-assessment. Patients will be stratified into two subgroups, with and without EGFR T790M mutation. The stratification will be done after the inclusion of patients. Sample size: 102 patients

Interventions

DRUGErlotinib

Patients will be treated with erlotinib, 150 mg p.o., daily

DRUGBevacizumab

Patients will be treated with bevacizumab 15 mg/kg i.v. on day 1 of each 3-week cycle (+/- 3 days)

Sponsors

ETOP IBCSG Partners Foundation
Lead SponsorNETWORK
Spanish Lung Cancer Group
CollaboratorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Age ≥ 18 years * ECOG performance status 0-2 * Adequate haematological function, coagulation, liver function and renal function * Pathological diagnosis of predominantly non-squamous, non-small-cell lung cancer (NSCLC) * TNM version 7 stage IV disease including M1a (malignant effusion) or M1b (distant metastasis), or locally advanced disease not amenable to curative treatment (including patients progressing after radiochemotherapy for stage III disease) * Measurable or evaluable disease (according to RECIST 1.1 criteria). * Centrally confirmed EGFR exon 19 deletion (del19) or exon 21 mutation (L858R)

Exclusion criteria

* Patients with increased risk of bleeding * Patients with clinically significant cardiovascular diseases * Patients with a history of thrombosis or thromboembolism in the 6 months prior to treatment * Patients with gastrointestinal problems * Patients with neurologic problems * Patients who have had in the past 5 years any previous or concomitant malignancy EXCEPT adequately treated basal or squamous cell carcinoma of the skin, in situ carcinoma of the cervix or bladder, in situ breast carcinoma. * Patients with any known significant ophthalmologic anomaly of the ocular surface * Patients who received prior chemotherapy for metastatic disease * Patients who received previous treatment for lung cancer with drugs targeting EGFR or VEGF * Pregnancy

Design outcomes

Primary

MeasureTime frameDescription
Progression Free SurvivalFrom the date of enrollment until documented progression or death, whichever occurs first, assessed up to 48 months.Time from the date of enrollment until an investigator-documented progression or death, whichever occurs first. Assessment of Progressive Disease (PD) is based on Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1): at least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum recorded on study. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm.

Secondary

MeasureTime frameDescription
Overall SurvivalFrom the date of enrollment until death, assessed up to 48 months.Time from the date of enrollment until death from any cause.
Time to Treatment FailureFrom the date of enrollment until discontinuation of treatment, assessed up to 48 months.Time from the date of enrollment to discontinuation of treatment for any reason including progression of disease (based on RECIST v1.1), treatment toxicity (adverse events classified according to NCI CTCAE version 4.), refusal and death.
Objective ResponseAssessed across all time-points from enrollment to termination of trial treatment (max 48 months).Objective response is defined as best overall response (CR or PR) across all assessment time-points during the period from enrollment to termination of trial treatment. Objective response, along with progressive and stable disease, will be determined using RECIST 1.1 criteria: Complete Response (CR): Disappearance of all target lesions. Partial Response (PR): At least a 30% decrease in the sum of diameters of target lesions taking as reference the baseline sum of diameters. Progression (PD): At least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum recorded on the trial. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm. Stable Disease (SD): Neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD taking as reference the smallest sum of diameters recorded on the trial.
Disease ControlAssessed across all time-points from enrollment to termination of trial treatment (max 48 months).Disease control is defined as achieving objective response (CR or PR, across all time-points from enrollment to termination of trial treatment) or stable disease for at least 6 weeks. Objective response, along with SD (disease control) and PD (no disease control), will be determined using RECIST 1.1 criteria: Complete Response (CR): Disappearance of all target lesions. Partial Response (PR): At least a 30% decrease in the sum of diameters of target lesions taking as reference the baseline sum of diameters.Progression (PD): At least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum recorded on the trial. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm.Stable Disease (SD): Neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD taking as reference the smallest sum of diameters recorded on the trial.
Duration of ResponseAssessed across all time-points from enrollment to to the date of first documented progression or relapse (max 48 months).Interval from the date of first documentation of objective response (CR or PR) to the date of first documented progression or relapse. Assessment of Objective response and Progressive Disease (PD) is based on the RECIST 1.1 criteria: Complete Response (CR): Disappearance of all target lesions. Partial Response (PR): At least a 30% decrease in the sum of diameters of target lesions taking as reference the baseline sum of diameters. Progression (PD): At least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum recorded on the trial. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm. Stable Disease (SD): Neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD taking as reference the smallest sum of diameters recorded on the trial.
Adverse EventsAssessed across all time-points until end of treatment (30 +/-5 days following the last dose of study drug) (max 48 months).Adverse events graded according to NCI CTCAE V4.

Countries

France, Germany, Greece, Ireland, Italy, Spain, Switzerland, United Kingdom

Contacts

STUDY_CHAIRRafael Rosell, MD

Catalan Institute of Oncology, Hospital Germans Trias i Pujol

STUDY_CHAIRStahel Rolf, MD

Laboratory of Molecular Oncology, Clinic of Oncology, University Hospital Zuerich

STUDY_CHAIRMiquel Taron

Medical Oncology Service-ICO, Hospital Germans Trias i Pujol

Participant flow

Recruitment details

Between June 11, 2012 and Oct 28, 2014, 109 eligible patients were enrolled in 29 centers of eight European countries (Spain, Switzerland, UK, Greece, Italy, Ireland, France and Germany). All patients were included in the efficacy analysis.

Participants by arm

ArmCount
T790M Positive
Treatment-naive patients with advanced non-small-cell lung cancer positive for an activating EGFR mutation (exon 19 deletion or L858R mutation), with T790M, treated with erlotinib (150 mg p.o., daily) and bevacizumab (15 mg/kg i.v. on day 1 of each 21 day cycle).
37
T790M Negative
Treatment-naive patients with advanced non-small-cell lung cancer positive for an activating EGFR mutation (exon 19 deletion or L858R mutation), without T790M, treated with erlotinib (150 mg p.o., daily) and bevacizumab (15 mg/kg i.v. on day 1 of each 21 day cycle).
72
Total109

Baseline characteristics

CharacteristicTotalT790M PositiveT790M Negative
AEG1 mRNA expression
High (≥1)
30 Participants12 Participants18 Participants
AEG1 mRNA expression
Low (<1)
31 Participants11 Participants20 Participants
AEG1 mRNA expression
No material or no value
48 Participants14 Participants34 Participants
Age, Continuous66.1 years69.5 years63 years
Brain metastasis
No
88 Participants30 Participants58 Participants
Brain metastasis
Yes
21 Participants7 Participants14 Participants
BRCA1 mRNA expression
High (≥9.2)
23 Participants10 Participants13 Participants
BRCA1 mRNA expression
Low (<9.2)
23 Participants10 Participants13 Participants
BRCA1 mRNA expression
No material or no value
63 Participants17 Participants46 Participants
ECOG performance status
0
53 Participants17 Participants36 Participants
ECOG performance status
1
50 Participants18 Participants32 Participants
ECOG performance status
2
6 Participants2 Participants4 Participants
Histological diagnosis
Adenocarcinoma
93 Participants34 Participants59 Participants
Histological diagnosis
Adenosquamous carcinoma
2 Participants1 Participants1 Participants
Histological diagnosis
Not otherwise specified
3 Participants1 Participants2 Participants
Histological diagnosis
Unknown
11 Participants1 Participants10 Participants
Race and Ethnicity Not Collected0 Participants
Sex: Female, Male
Female
67 Participants25 Participants42 Participants
Sex: Female, Male
Male
42 Participants12 Participants30 Participants
Smoking status
Current smoker
7 Participants0 Participants7 Participants
Smoking status
Former smoker
30 Participants10 Participants20 Participants
Smoking status
Never smoked
72 Participants27 Participants45 Participants
Type of EGFR mutation
Deletion of exon 19
70 Participants23 Participants47 Participants
Type of EGFR mutation
L858R mutation in exon 21
39 Participants14 Participants25 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
1 / 360 / 70
other
Total, other adverse events
36 / 3669 / 70
serious
Total, serious adverse events
12 / 3619 / 70

Outcome results

Primary

Progression Free Survival

Time from the date of enrollment until an investigator-documented progression or death, whichever occurs first. Assessment of Progressive Disease (PD) is based on Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1): at least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum recorded on study. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm.

Time frame: From the date of enrollment until documented progression or death, whichever occurs first, assessed up to 48 months.

ArmMeasureValue (MEDIAN)
T790M PositiveProgression Free Survival16 months
T790M NegativeProgression Free Survival10.5 months
Secondary

Adverse Events

Adverse events graded according to NCI CTCAE V4.

Time frame: Assessed across all time-points until end of treatment (30 +/-5 days following the last dose of study drug) (max 48 months).

Population: Three patients never started treatment (2 lost to follow-up, one from each arm and 1 withdrawal from T790M negative arm).

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
T790M PositiveAdverse EventsExperienced SAE12 Participants
T790M PositiveAdverse EventsExperienced AE/SAE36 Participants
T790M PositiveAdverse EventsNo AE/SAE0 Participants
T790M NegativeAdverse EventsExperienced SAE19 Participants
T790M NegativeAdverse EventsExperienced AE/SAE69 Participants
T790M NegativeAdverse EventsNo AE/SAE1 Participants
Secondary

Disease Control

Disease control is defined as achieving objective response (CR or PR, across all time-points from enrollment to termination of trial treatment) or stable disease for at least 6 weeks. Objective response, along with SD (disease control) and PD (no disease control), will be determined using RECIST 1.1 criteria: Complete Response (CR): Disappearance of all target lesions. Partial Response (PR): At least a 30% decrease in the sum of diameters of target lesions taking as reference the baseline sum of diameters.Progression (PD): At least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum recorded on the trial. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm.Stable Disease (SD): Neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD taking as reference the smallest sum of diameters recorded on the trial.

Time frame: Assessed across all time-points from enrollment to termination of trial treatment (max 48 months).

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
T790M PositiveDisease ControlDisease Control35 Participants
T790M PositiveDisease ControlNo Disease Control2 Participants
T790M NegativeDisease ControlDisease Control66 Participants
T790M NegativeDisease ControlNo Disease Control6 Participants
Secondary

Duration of Response

Interval from the date of first documentation of objective response (CR or PR) to the date of first documented progression or relapse. Assessment of Objective response and Progressive Disease (PD) is based on the RECIST 1.1 criteria: Complete Response (CR): Disappearance of all target lesions. Partial Response (PR): At least a 30% decrease in the sum of diameters of target lesions taking as reference the baseline sum of diameters. Progression (PD): At least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum recorded on the trial. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm. Stable Disease (SD): Neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD taking as reference the smallest sum of diameters recorded on the trial.

Time frame: Assessed across all time-points from enrollment to to the date of first documented progression or relapse (max 48 months).

ArmMeasureValue (MEDIAN)
T790M PositiveDuration of ResponseNA months
T790M NegativeDuration of Response12 months
Secondary

Objective Response

Objective response is defined as best overall response (CR or PR) across all assessment time-points during the period from enrollment to termination of trial treatment. Objective response, along with progressive and stable disease, will be determined using RECIST 1.1 criteria: Complete Response (CR): Disappearance of all target lesions. Partial Response (PR): At least a 30% decrease in the sum of diameters of target lesions taking as reference the baseline sum of diameters. Progression (PD): At least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum recorded on the trial. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm. Stable Disease (SD): Neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD taking as reference the smallest sum of diameters recorded on the trial.

Time frame: Assessed across all time-points from enrollment to termination of trial treatment (max 48 months).

Population: Patients with only 1 tumor assessment are classified as Non-Evaluable, because they cannot be accounted for the Objective Response rate.

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
T790M PositiveObjective ResponsePartial Response24 Participants
T790M PositiveObjective ResponseProgressive Disease1 Participants
T790M PositiveObjective ResponseStable Disease8 Participants
T790M PositiveObjective ResponseNon-Evaluable1 Participants
T790M PositiveObjective ResponseComplete Response3 Participants
T790M NegativeObjective ResponseNon-Evaluable3 Participants
T790M NegativeObjective ResponseComplete Response3 Participants
T790M NegativeObjective ResponsePartial Response54 Participants
T790M NegativeObjective ResponseStable Disease9 Participants
T790M NegativeObjective ResponseProgressive Disease3 Participants
Secondary

Overall Survival

Time from the date of enrollment until death from any cause.

Time frame: From the date of enrollment until death, assessed up to 48 months.

ArmMeasureValue (MEDIAN)
T790M PositiveOverall SurvivalNA months
T790M NegativeOverall Survival28.2 months
Secondary

Time to Treatment Failure

Time from the date of enrollment to discontinuation of treatment for any reason including progression of disease (based on RECIST v1.1), treatment toxicity (adverse events classified according to NCI CTCAE version 4.), refusal and death.

Time frame: From the date of enrollment until discontinuation of treatment, assessed up to 48 months.

ArmMeasureValue (MEDIAN)
T790M PositiveTime to Treatment Failure13.4 months
T790M NegativeTime to Treatment Failure8.3 months

Source: ClinicalTrials.gov · Data processed: Aug 27, 2026