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A Study Comparing MB02 and Avastin® in Subjects With Stage IIIB/IV Non-Squamous Non-Small Cell Lung Cancer (NSCLC)

A Randomized, Multicenter, Multinational, Double-Blind Study to Assess the Efficacy and Safety of MB02 (Bevacizumab Biosimilar Drug) Versus Avastin® in Combination With Carboplatin and Paclitaxel for the Treatment of Subjects With Stage IIIB/IV Non-squamous Non-Small Cell Lung Cancer (NSCLC)

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03296163
Acronym
STELLA
Enrollment
627
Registered
2017-09-28
Start date
2018-02-06
Completion date
2020-02-27
Last updated
2021-04-26

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

Conditions

Non-small Cell Lung Cancer

Brief summary

This is a multicenter, multinational, double-blind, 1:1 randomized, parallel-group, equivalence Phase 3 study to compare the efficacy and safety of MB02 plus chemotherapy (carboplatin and paclitaxel) versus Avastin® plus chemotherapy (carboplatin and paclitaxel) in subjects with Stage IIIB/IV non-squamous NSCLC

Detailed description

Efficacy parameters, safety profiles and immunogenicity will be compared between MB02 (Bevacizumab Biosimilar Drug) and European (EU)-approved Avastin®

Interventions

DRUGMB02 (Bevacizumab Biosimilar Drug)

15 mg/kg IV every 3 weeks on Day 1

DRUGEU-approved Avastin®

15 mg/kg IV every 3 weeks on Day 1

DRUGCarboplatin

Carboplatin Area under the curve (AUC) 6 IV every 3 weeks on Day 1 for 6 cycles

DRUGPaclitaxel

Paclitaxel 200 mg/m2 IV every 3 weeks on Day 1 for 6 cycles

Sponsors

mAbxience Research S.L.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

1. Males and female subjects aged ≤ 18 years to ≤ 80 years. 2. Signed informed consent must be obtained before initiation of any study-specific procedures or treatment as confirmation of the subject's awareness and willingness to comply with the study requirements. 3. Subjects should have newly diagnosed or recurrent Stage IIIB/IV (defined by seventh edition of the Tumor, Node and Metastasis (TNM) classification for Lung Cancer, 2010) non-squamous NSCLC not amenable to curative intent surgery, and not have received any systemic therapy for advanced disease (

Exclusion criteria

3 and 4). For subjects with recurrent disease, at least 6 months must have elapsed before randomization from previous adjuvant treatment. 4. Previous radiation therapy if completed \>4 weeks before randomization. Palliative radiotherapy to bone lesions is allowed if completed \>2 weeks of randomization. 5. Subjects must have at least 1 unidimensional measurable lesion per RECIST version 1.1 (assessed locally). 6. Subjects must have an Eastern Cooperative Oncology Group (ECOG) performance status ≤1 at Screening. 7. Subjects must have adequate hepatic, renal and hematologic function defined as: * Hepatic function: bilirubin level \<1.5 the upper limit of normal (ULN), alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels\<2.5×ULN. * Renal function: serum creatinine level \<1.5×ULN, calculated creatinine clearance (CrCl) \>50 mL/min (Cockcroft-Gault formula), urine protein to creatinine ratio \<1. Subjects with urine protein-to-creatinine ratio \>1 may be enrolled if they have \<1 g of protein in 24-hour urine collection. * Hematological function: Absolute neutrophil count \>1.5×109 /L; platelets \>100×109 /L, hemoglobin (Hb) \>9 g/dL. * Adequate coagulation parameters such as: INR ≤ 2.0 and aPTT ≤ 1.5 x ULN within 7 days prior to randomization for patients not receiving anticoagulation therapy. 8. Eligible subjects must have a systolic blood pressure of ≤ 140 mm Hg and a diastolic blood pressure of ≤90 mm Hg at screening. 9. Women of childbearing potential, and their partners, must agree to adhere to pregnancy prevention methods throughout the duration of the study (including the Follow-up visits, where applicable). Women of childbearing potential are defined as those who are not surgically sterile (did not underwent bilateral tubal ligation, bilateral oophorectomy, or hysterectomy) and not postmenopausal. Subjects and their partners must agree to use a highly effective method of contraception, to avoid women becoming pregnant throughout the course of the study. Medically acceptable forms of birth control can include the following, with approval of the treating physician: * Combined (estrogen and progestogen containing) hormonal contraception associated with inhibition of ovulation (oral, intravaginal, or transdermal), progestogen-only hormonal contraception associated with inhibition of ovulation (oral, injectable, implantable), intrauterine device, intrauterine hormone-releasing system, bilateral tubal occlusion, vasectomized partner, sexual abstinence. 10\. Non fertile women can be included, that is, those who are physiologically incapable of becoming pregnant, because of: * Hysterectomy. * Bilateral oophorectomy (ovariectomy). * Bilateral tubal ligation or, * Postmenopausal women defined as: Subjects not using hormone replacement therapy (HRT) and have experienced total cessation of menses for ≥ 1 year and be greater than 45 years of age, OR, in questionable cases, have a follicle stimulating hormone \>40 mIU/mL and an estradiol value \<40 pg/mL (\<140 pmol/L). Subjects must discontinue HRT before study enrolment because of the potential for inhibition of cytochrome enzymes that metabolize estrogens and progestins. For most forms of HRT, at least 2 to 4 weeks must elapse between the cessation of HRT and determination of menopausal status; the length of this interval depends on the type and dosage of HRT. If a female subject is determined not to be postmenopausal, that subject must use adequate contraception, as defined immediately above (inclusion 8).

Design outcomes

Primary

MeasureTime frameDescription
Objective Response Rate (ORR) at Week 1818 weeks from randomisationObjective response rate was assigned for a subject if the subject displayed either complete response (CR) or partial response (PR) per RECIST version 1.1 at Week 18, as assessed by independent radiological review committee (IRC). Overall Response (OR) = CR + PR.

Secondary

MeasureTime frameDescription
Progression-free Survival (PFS)At Week 52 from randomisationProgression-free survival was defined as the time from randomization to subsequent confirmed progression per RECIST version 1.1, or death (whichever occurred first), measured in weeks and months. For PFS assessment clinical progression (i.e., treatment discontinuation due to progression of disease) was also considered as an event.
Overall Survival (OS)At Week 52 from randomisationOverall survival was defined as the time from randomization to subsequent death, measured in weeks and months.
Incidence of Treatment-emergent Adverse Events (TEAEs)Week 1 to week 52Comparison of Safety profile. Safety was monitored by incidence of adverse events (AEs). AEs were coded as per MedDRA (version 20.1) and severity was graded according to NCI-CTCAE (version 4.03);
Immunogenicity Assessments (Anti-drug Antibodies [ADA] and Neutralizing Antibodies [NAb])At Weeks 1, 4, 10, 19, 34 and 52 from randomization and, at the End of Treatment Visit if, an ADA sample has not been collected within the previous 3 weeksIncidence of anti-drug antibodies (ADA) and neutralizing ADAs (NAb). Analyses of ADA incidence rate, antibody titer, and neutralizing antibodies (NAb) (following the recommended 3-tier approach) were performed.

Countries

Brazil, Bulgaria, Chile, Georgia, Greece, Hungary, India, Lebanon, Malaysia, Mexico, Oman, Philippines, Russia, Serbia, Spain, Thailand, Turkey (Türkiye), Ukraine

Participant flow

Pre-assignment details

A total of 627 subjects were randomized and assigned to one of the study arms. Two subjects in the MB02 arm failed screening but were randomized in error. These subjects did not receive treatment. Another two subjects did not receive MB02 treatment due to death (one subject) and unacceptable toxicity (one subject). Two subjects in the European (EU)-approved bevacizumab did not receive study treatment due to investigator decision (one subject) and unacceptable toxicity (one subject).

Participants by arm

ArmCount
MB02 (Bevacizumab Biosimilar Drug)
MB02 (Bevacizumab Biosimilar Drug) + Carboplatin/Paclitaxel MB02 (Bevacizumab Biosimilar Drug): 15 mg/kg IV every 3 weeks on Day 1 Carboplatin: Carboplatin AUC 6 IV every 3 weeks on Day 1 for 6 cycles Paclitaxel: Paclitaxel 200 mg/m2 IV every 3 weeks on Day 1 for 6 cycles
315
EU-approved Avastin®
EU-approved Avastin® + Carboplatin/Paclitaxel EU-approved Avastin®: 15 mg/kg IV every 3 weeks on Day 1 Carboplatin: Carboplatin AUC 6 IV every 3 weeks on Day 1 for 6 cycles Paclitaxel: Paclitaxel 200 mg/m2 IV every 3 weeks on Day 1 for 6 cycles
312
Total627

Baseline characteristics

CharacteristicMB02 (Bevacizumab Biosimilar Drug)EU-approved Avastin®Total
Age, Continuous61.0 years61.0 years61.0 years
Body surface area (BSA)1.780 m^21.790 m^21.780 m^2
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
71 Participants54 Participants125 Participants
Race (NIH/OMB)
Black or African American
1 Participants1 Participants2 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants1 Participants1 Participants
Race (NIH/OMB)
White
243 Participants256 Participants499 Participants
Sex: Female, Male
Female
122 Participants122 Participants244 Participants
Sex: Female, Male
Male
193 Participants190 Participants383 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
23 / 31124 / 310
other
Total, other adverse events
288 / 311288 / 310
serious
Total, serious adverse events
58 / 31154 / 310

Outcome results

Primary

Objective Response Rate (ORR) at Week 18

Objective response rate was assigned for a subject if the subject displayed either complete response (CR) or partial response (PR) per RECIST version 1.1 at Week 18, as assessed by independent radiological review committee (IRC). Overall Response (OR) = CR + PR.

Time frame: 18 weeks from randomisation

Population: Primary efficacy analysis was done in the intention-to-treat (ITT) population.

ArmMeasureValue (NUMBER)
MB02 (Bevacizumab Biosimilar Drug)Objective Response Rate (ORR) at Week 1840.3 Percentage of participants
EU-approved Avastin®Objective Response Rate (ORR) at Week 1844.6 Percentage of participants
90% CI: [0.78, 1.06]
90% CI: [-10.51, 2.47]
Secondary

Immunogenicity Assessments (Anti-drug Antibodies [ADA] and Neutralizing Antibodies [NAb])

Incidence of anti-drug antibodies (ADA) and neutralizing ADAs (NAb). Analyses of ADA incidence rate, antibody titer, and neutralizing antibodies (NAb) (following the recommended 3-tier approach) were performed.

Time frame: At Weeks 1, 4, 10, 19, 34 and 52 from randomization and, at the End of Treatment Visit if, an ADA sample has not been collected within the previous 3 weeks

Population: Immunogenicity was assessed in the Safety population.

ArmMeasureGroupValue (NUMBER)
MB02 (Bevacizumab Biosimilar Drug)Immunogenicity Assessments (Anti-drug Antibodies [ADA] and Neutralizing Antibodies [NAb])ADA positive53 participants
MB02 (Bevacizumab Biosimilar Drug)Immunogenicity Assessments (Anti-drug Antibodies [ADA] and Neutralizing Antibodies [NAb])NAb positive10 participants
MB02 (Bevacizumab Biosimilar Drug)Immunogenicity Assessments (Anti-drug Antibodies [ADA] and Neutralizing Antibodies [NAb])NO seroconversion239 participants
EU-approved Avastin®Immunogenicity Assessments (Anti-drug Antibodies [ADA] and Neutralizing Antibodies [NAb])ADA positive50 participants
EU-approved Avastin®Immunogenicity Assessments (Anti-drug Antibodies [ADA] and Neutralizing Antibodies [NAb])NAb positive13 participants
EU-approved Avastin®Immunogenicity Assessments (Anti-drug Antibodies [ADA] and Neutralizing Antibodies [NAb])NO seroconversion247 participants
Secondary

Incidence of Treatment-emergent Adverse Events (TEAEs)

Comparison of Safety profile. Safety was monitored by incidence of adverse events (AEs). AEs were coded as per MedDRA (version 20.1) and severity was graded according to NCI-CTCAE (version 4.03);

Time frame: Week 1 to week 52

Population: Safety analyses were performed in the Safety population, which consisted of all subjects who received at least 1 administration of investigational medicinal product.

ArmMeasureGroupValue (NUMBER)
MB02 (Bevacizumab Biosimilar Drug)Incidence of Treatment-emergent Adverse Events (TEAEs)with ≥1 treatment-related TEAE264 participants
MB02 (Bevacizumab Biosimilar Drug)Incidence of Treatment-emergent Adverse Events (TEAEs)with at least one Serious TEAE58 participants
MB02 (Bevacizumab Biosimilar Drug)Incidence of Treatment-emergent Adverse Events (TEAEs)with ≥1 Grade 3 or 4 TEAE131 participants
MB02 (Bevacizumab Biosimilar Drug)Incidence of Treatment-emergent Adverse Events (TEAEs)with ≥1 TEAE leading to discontinuation72 participants
MB02 (Bevacizumab Biosimilar Drug)Incidence of Treatment-emergent Adverse Events (TEAEs)with ≥1 Grade 3 or 4 treatment-related TEAE98 participants
MB02 (Bevacizumab Biosimilar Drug)Incidence of Treatment-emergent Adverse Events (TEAEs)with ≥1 treatment-related TEAE leading to discontinuation42 participants
MB02 (Bevacizumab Biosimilar Drug)Incidence of Treatment-emergent Adverse Events (TEAEs)with ≥1 TEAE288 participants
EU-approved Avastin®Incidence of Treatment-emergent Adverse Events (TEAEs)with ≥1 treatment-related TEAE leading to discontinuation33 participants
EU-approved Avastin®Incidence of Treatment-emergent Adverse Events (TEAEs)with ≥1 TEAE288 participants
EU-approved Avastin®Incidence of Treatment-emergent Adverse Events (TEAEs)with ≥1 Grade 3 or 4 TEAE125 participants
EU-approved Avastin®Incidence of Treatment-emergent Adverse Events (TEAEs)with ≥1 treatment-related TEAE270 participants
EU-approved Avastin®Incidence of Treatment-emergent Adverse Events (TEAEs)with ≥1 Grade 3 or 4 treatment-related TEAE91 participants
EU-approved Avastin®Incidence of Treatment-emergent Adverse Events (TEAEs)with at least one Serious TEAE54 participants
EU-approved Avastin®Incidence of Treatment-emergent Adverse Events (TEAEs)with ≥1 TEAE leading to discontinuation63 participants
Secondary

Overall Survival (OS)

Overall survival was defined as the time from randomization to subsequent death, measured in weeks and months.

Time frame: At Week 52 from randomisation

ArmMeasureValue (MEDIAN)
MB02 (Bevacizumab Biosimilar Drug)Overall Survival (OS)NA weeks
EU-approved Avastin®Overall Survival (OS)NA weeks
95% CI: [0.827, 1.485]
Secondary

Progression-free Survival (PFS)

Progression-free survival was defined as the time from randomization to subsequent confirmed progression per RECIST version 1.1, or death (whichever occurred first), measured in weeks and months. For PFS assessment clinical progression (i.e., treatment discontinuation due to progression of disease) was also considered as an event.

Time frame: At Week 52 from randomisation

ArmMeasureValue (MEDIAN)
MB02 (Bevacizumab Biosimilar Drug)Progression-free Survival (PFS)36.0 weeks
EU-approved Avastin®Progression-free Survival (PFS)37.3 weeks
95% CI: [0.98, 1.44]

Source: ClinicalTrials.gov · Data processed: Feb 23, 2026