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A Study to Assess Efficacy and Safety of Pertuzumab Given in Combination With Trastuzumab and Vinorelbine in Participants With Metastatic or Locally Advanced Human Epidermal Growth Factor Receptor (HER) 2-Positive Breast Cancer

A Two-cohort, Open-label, Multicenter Phase II Trial Assessing the Efficacy and Safety of Pertuzumab Given in Combination With Trastuzumab and Vinorelbine in First Line Patients With HER2-positive Advanced (Metastatic or Locally Advanced) Breast Cancer

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01565083
Acronym
VELVET
Enrollment
213
Registered
2012-03-28
Start date
2012-04-30
Completion date
2015-10-31
Last updated
2016-11-22

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

Conditions

Breast Cancer

Brief summary

This two-cohort, open-label, multicenter, phase 2 study will assess the safety and efficacy of pertuzumab given in combination with trastuzumab (Herceptin) and vinorelbine in first line participants with metastatic or locally advanced HER2-positive breast cancer. Participants will receive pertuzumab and trastuzumab administered sequentially as separate intravenous (IV) infusions (followed by vinorelbine) and conventional sequential administration of pertuzumab and trastuzumab in separate infusion bags, followed by vinorelbine.

Interventions

DRUGPertuzumab

Loading dose of 840 mg on Day 1 of first 21-day cycle, followed by 420 mg on Day 1 of each subsequent cycle.

DRUGTrastuzumab

Loading dose of 8 mg/kg on Day 1 of first 21-day cycle, followed by 6 mg/kg on Day 1 or 2 of each subsequent cycle.

DRUGVinorelbine

A dose of 25 mg/m\^2 followed by 30-35 mg/m\^2 on Days 2 and 9 of the first 21-day cycle and on Days 1 and 8 (or Days 2 and 9) of each subsequent cycle.

Sponsors

Hoffmann-La Roche
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Histologically or cytologically confirmed and documented adenocarcinoma of the breast with metastatic or locally advanced disease not amenable to curative resection * HER2-positive as assessed by local laboratory on primary or metastatic tumor * At least one measurable lesion and/or non-measurable disease evaluable according to RECIST v1.1 criteria * Eastern Cooperative Oncology Group (ECOG) performance status 0 or 1 * Left ventricular ejection fraction (LVEF) of at least 55% * Life expectancy of at least 12 weeks

Exclusion criteria

* Previous systemic non-hormonal anti-cancer therapy in the metastatic or locally advanced breast cancer setting * Previous approved or investigative anti-HER2 agents in any breast cancer treatment setting, except trastuzumab and/or lapatinib in the adjuvant or neoadjuvant setting * Disease progression while receiving trastuzumab and/or lapatinib in the adjuvant or neoadjuvant setting * Disease-free interval from completion of adjuvant or neoadjuvant systemic non-hormonal treatment to recurrent disease of less than 6 months * History of persistent Grade 2 or higher (National Cancer Institute Common Terminology Criteria \[NCI-CTC\], Version 4.0) hematological toxicity resulting from previous adjuvant or neoadjuvant therapy * Radiographic evidence of central nervous system metastases that are not well controlled with local therapy (irradiation or surgery) * Current peripheral neuropathy of NCI-CTC, version 4.0 Grade 3 or greater * History of other malignancy within the last 5 years, except for carcinoma in situ of the cervix, non-melanoma skin carcinoma, Stage 1 uterine cancer, or cancers with a similar curative outcome as those mentioned above * Serious uncontrolled concomitant disease that would contraindicate the use of any of the investigational drugs used in this study or would put the participants at high risk for treatment-related complications * Inadequate hematologic, liver, or renal function * Uncontrolled hypertension or clinically significant cardiovascular disease * Hepatitis B, hepatitis C, or human immunodeficiency virus (HIV) infection * Current chronic daily treatment with corticosteroids (\>/= 10 mg/day methylprednisolone or equivalent), excluding inhaled steroids

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Participants With Best Overall Response (BOR) as Assessed by Investigator According to Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST v1.1)Baseline, every 3 cycles up to 36 months, and every 6 cycles thereafter if progression free after 36 months, 28 days after end of treatment, every 3 months thereafter (maximum up to approximately 3.5 years)Tumor response was assessed by investigator according to RECIST v1.1. BOR was defined as percentage of participants with a confirmed complete response (CR) or partial response (PR). All measurable lesions up to a maximum of 2 lesions per organ and 5 lesions in total or pathological nodes (with short axis \[SA\] of at least (\>/=) 15 millimeter \[mm\]) were identified as target lesions (TLs) and measured and recorded at baseline. A sum of diameters (longest for non-nodal lesions, SA for nodal lesions) for all TLs was calculated and reported as baseline sum of diameters (SD). All other lesions (or sites of disease) were identified as non-TLs. CR: disappearance of all TLs and SA reduction to less than (\<) 10 mm for nodal TLs/ non-TLs. PR: \>/=30 percent (%) decrease in SD of TLs, taking as reference baseline SD. Confirmation of response at 2 consecutive tumor assessments \>/=4 weeks apart was required. The 95% confidence interval (CI) was computed using Clopper-Pearson approach.

Secondary

MeasureTime frameDescription
Duration of Response (DOR) as Assessed by Investigator According to RECIST v 1.1Baseline, every 3 cycles up to 36 months, and every 6 cycles thereafter if progression free after 36 months, 28 days after end of treatment, every 3 months thereafter (maximum up to approximately 3.5 years)DOR, in participants with a BOR of CR or PR, was defined as the period from the date of initial PR or CR until the date of PD or death from any cause. Participants with no documented PD or death after CR or PR were censored at the last date at which they were known to have had the CR or PR, respectively (regardless of the response at intermediate assessments). CR: the disappearance of all TLs and SA reduction to \<10 mm for nodal TLs/ non-TLs. PR: \>/=30% decrease in SD of TLs, taking as reference the baseline SD. Confirmation of response at 2 consecutive tumor assessments \>/=4 weeks apart was required. PD: \>/=20% relative increase and \>/=5 mm of absolute increase in the SD of TLs, taking as reference the smallest SD recorded since treatment started, or appearance of 1 or more new lesions. The 95% CI was computed using log-log transformation.
Percentage of Participants With Disease Progression as Assessed by Investigator According to RECIST v1.1 or Death From Any CauseBaseline, every 3 cycles up to 36 months, and every 6 cycles thereafter if progression free after 36 months, 28 days after end of treatment, every 3 months thereafter (maximum up to approximately 3.5 years)PD was defined as \>/=20% relative increase and \>/=5 mm of absolute increase in the SD of TLs, taking as reference the smallest SD recorded since treatment started, or appearance of 1 or more new lesions. Percentage of participants with radio-graphically documented PD as assessed by investigator according to RECIST v1.1 or death due to any cause was reported.
Progression-free Survival (PFS) as Assessed by Investigator According to RECIST v 1.1Baseline, every 3 cycles up to 36 months, and every 6 cycles thereafter if progression free after 36 months, 28 days after end of treatment, every 3 months thereafter (maximum up to approximately 3.5 years)PFS was defined as the time from first intake of any study medication until the first radio-graphically documented PD as assessed by investigator according to RECIST v1.1 or death due to any cause, whichever occurred first. Participants with no PFS events were censored at the time of the last evaluable tumor assessment. Participants with no baseline or no tumor assessment after the baseline visit were censored on the date of first study treatment. PD: \>/=20% relative increase and \>/=5 mm of absolute increase in the SD of TLs, taking as reference the smallest SD recorded since treatment started, or appearance of 1 or more new lesions. Participants who had radio-graphically documented PD as assessed by investigator according to RECIST v1.1 or died due to any cause were considered as having an event. The median PFS was estimated using Kaplan-Meier method. The 95% CI was computed using log-log transformation.
Percentage of Participants With Disease Progression as Assessed by Investigator According to RECIST v1.1Baseline, every 3 cycles up to 36 months, and every 6 cycles thereafter if progression free after 36 months, 28 days after end of treatment, every 3 months thereafter (maximum up to approximately 3.5 years)PD was defined as \>/=20% relative increase and \>/=5 mm of absolute increase in the SD of TLs, taking as reference the smallest SD recorded since treatment started, or appearance of 1 or more new lesions. Percentage of participants with radio-graphically documented PD as assessed by investigator according to RECIST v1.1 was reported.
Time to Response as Assessed by Investigator According to RECIST v 1.1Baseline, every 3 cycles up to 36 months, and every 6 cycles thereafter if progression free after 36 months, 28 days after end of treatment, every 3 months thereafter (maximum up to approximately 3.5 years)For participants with a BOR of CR or PR, time to response = (Date of first confirmed CR/PR - Date of first study treatment) + 1. For participants without a CR or PR, time to response = (Date of adequate last tumor assessment - Date of first study treatment) + 1. For participant with no tumor assessment (or if all assessments were progressive disease \[PD\]) the censoring day was set to date of first study treatment +1. CR: the disappearance of all TLs and SA reduction to \<10 mm for nodal TLs/ non-TLs. PR: \>/=30% decrease in SD of TLs, taking as reference the baseline SD. Confirmation of response at 2 consecutive tumor assessments \>/=4 weeks apart was required. PD: \>/=20% relative increase and \>/=5 mm of absolute increase in the SD of TLs, taking as reference the smallest SD recorded since treatment started, or appearance of 1 or more new lesions. The 95% CI was computed using log-log transformation.
Percentage of Participants Who Died From Any CauseBaseline until death (up to approximately 3.5 years)Percentage of participants who died due to any cause was reported.
Overall Survival (OS)Baseline until death (up to approximately 3.5 years)OS was defined as the time from first intake of any study medication to the date of death, regardless of the cause of death. Participants who were known to be alive at the time of the analysis were censored at the date of the last follow-up assessment. Participants without follow-up assessment were censored at the day of last study treatment, and participants with no post-baseline information were censored at the date of first study treatment plus 1 day. Participants who died due to any cause were considered as having an event. The median OS was estimated using Kaplan-Meier method. The 95% CI was computed using log-log transformation.
Change From Baseline in European Quality of Life-5 Dimensions (EQ-5D) Questionnaire Visual Analogue Scale (VAS) ScoreBaseline, thereafter every 3 cycles from Cycle 3 to Cycle 45 (each cycle = 21 days)EQ-5D VAS: participant rated questionnaire to assess health-related quality of life (QoL) in terms of a single index value. The VAS component rates current health state on a scale from 0 mm (worst imaginable health state) to 100 mm (best imaginable health state); higher scores indicate a better health state.
Change From Baseline in Functional Assessment of Cancer Therapy-Breast (FACT-B) Questionnaire ScoreBaseline, thereafter every 3 cycles from Cycle 3 to Cycle 45 (each cycle = 21 days)FACT-B questionnaire is used for assessment of health-related QoL in participants with breast cancer. It consists of 36 items, summarized to 5 subscales: physical (7 items), functional (7 items), social/family (7 items); all 3 ranged from 0 to 28, emotional (6 items) ranging from 0 to 24, and breast cancer subscale (9 items) ranging from 0 to 36; high subscale score represents a better QoL. All single-item measures ranges from 0='Not at all' to 4='Very much'. Total possible score ranged from 0 to 144. High scale score represents a better QoL.
Time to Progression (TTP) as Assessed by Investigator According to RECIST v 1.1Baseline, every 3 cycles up to 36 months, and every 6 cycles thereafter if progression free after 36 months, 28 days after end of treatment, every 3 months thereafter (maximum up to approximately 3.5 years)TTP was defined as the time from first intake of any study medication until the first radio-graphically documented PD as assessed by investigator according to RECIST v1.1. Participants who did not have a radio-graphically documented PD and had died due to reason other than PD were censored on the last available tumor assessment prior to the death date. Participants with no baseline or no tumor assessment after the baseline visit were censored on the date of first study treatment. PD was defined as \>/=20% relative increase and \>/=5 mm of absolute increase in the SD of TLs, taking as reference the smallest SD recorded since treatment started, or appearance of 1 or more new lesions. Participants who had radio-graphically documented PD as assessed by investigator according to RECIST v1.1 were considered as having an event. The median TTP was estimated using Kaplan-Meier method. The 95% CI was computed using log-log transformation.

Countries

Brazil, Denmark, France, Germany, Italy, Spain, United States

Participant flow

Pre-assignment details

Due to non-randomized nature of the study (single infusion cohort started enrollment only after separate infusion cohort recruitment was completed) and different baseline characteristics of participants, the comparison between the 2 cohorts was not performed. Hence, the efficacy and safety results for the 2 cohorts should be considered separately.

Participants by arm

ArmCount
Pertuzumab + Trastuzumab + Vinorelbine: Separate Infusion
Pertuzumab IV infusion at a loading dose of 840 mg on Day 1 of Cycle 1 (cycle length = 21 days), followed by 420 mg on Day 1 of each subsequent cycle. Trastuzumab IV infusion at a loading dose of 8 mg/kg on Day 2 of Cycle 1, followed by 6 mg/kg on Day 2 of each subsequent cycle. Vinorelbine IV infusion (administered after trastuzumab) at a dose of 25 mg/m\^2 on Day 2 and Day 9 of Cycle 1, followed by 30-35 mg/m\^2 on Day 2 and Day 9 of each subsequent cycle. Pertuzumab and trastuzumab were administered sequentially in separate infusion bags, followed by vinorelbine until disease progression, unacceptable toxicity, withdrawal of consent, death, or predefined study end (up to 47 cycles).
106
Pertuzumab + Trastuzumab + Vinorelbine: Single Infusion
Pertuzumab IV infusion at a loading dose of 840 mg on Day 1 of Cycle 1 (cycle length = 21 days), followed by 420 mg on Day 1 of each subsequent cycle. Trastuzumab IV infusion at a loading dose of 8 mg/kg on Day 2 of Cycle 1, followed by 6 mg/kg on Day 1 of each subsequent cycle. Vinorelbine IV infusion at a dose of 25 mg/m\^2 on Day 2 and Day 9 of Cycle 1, followed by 30-35 mg/m\^2 on Day 1 and Day 8 of each subsequent cycle. If administration of all 3 drugs was well tolerated in Cycle 1, then on Day 1 of each subsequent cycle, pertuzumab 420 mg and trastuzumab 6 mg/kg was administered in a single infusion bag, followed by vinorelbine until disease progression, unacceptable toxicity, withdrawal of consent, death, or predefined study end (up to 47 cycles).
107
Total213

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyDeath2223
Overall StudyLost to Follow-up27
Overall StudyOther35
Overall StudyWithdrawal by Subject64

Baseline characteristics

CharacteristicPertuzumab + Trastuzumab + Vinorelbine: Separate InfusionPertuzumab + Trastuzumab + Vinorelbine: Single InfusionTotal
Age, Continuous56.9 years
STANDARD_DEVIATION 11.8
55.6 years
STANDARD_DEVIATION 13.17
56.2 years
STANDARD_DEVIATION 12.5
Sex: Female, Male
Female
106 Participants106 Participants212 Participants
Sex: Female, Male
Male
0 Participants1 Participants1 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
103 / 106106 / 107
serious
Total, serious adverse events
32 / 10644 / 107

Outcome results

Primary

Percentage of Participants With Best Overall Response (BOR) as Assessed by Investigator According to Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST v1.1)

Tumor response was assessed by investigator according to RECIST v1.1. BOR was defined as percentage of participants with a confirmed complete response (CR) or partial response (PR). All measurable lesions up to a maximum of 2 lesions per organ and 5 lesions in total or pathological nodes (with short axis \[SA\] of at least (\>/=) 15 millimeter \[mm\]) were identified as target lesions (TLs) and measured and recorded at baseline. A sum of diameters (longest for non-nodal lesions, SA for nodal lesions) for all TLs was calculated and reported as baseline sum of diameters (SD). All other lesions (or sites of disease) were identified as non-TLs. CR: disappearance of all TLs and SA reduction to less than (\<) 10 mm for nodal TLs/ non-TLs. PR: \>/=30 percent (%) decrease in SD of TLs, taking as reference baseline SD. Confirmation of response at 2 consecutive tumor assessments \>/=4 weeks apart was required. The 95% confidence interval (CI) was computed using Clopper-Pearson approach.

Time frame: Baseline, every 3 cycles up to 36 months, and every 6 cycles thereafter if progression free after 36 months, 28 days after end of treatment, every 3 months thereafter (maximum up to approximately 3.5 years)

Population: ITT population. Only participants with measurable disease at baseline were included in the analysis.

ArmMeasureValue (NUMBER)
Pertuzumab + Trastuzumab + Vinorelbine: Separate InfusionPercentage of Participants With Best Overall Response (BOR) as Assessed by Investigator According to Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST v1.1)74.2 percentage of participants
Pertuzumab + Trastuzumab + Vinorelbine: Single InfusionPercentage of Participants With Best Overall Response (BOR) as Assessed by Investigator According to Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST v1.1)63.7 percentage of participants
Secondary

Change From Baseline in European Quality of Life-5 Dimensions (EQ-5D) Questionnaire Visual Analogue Scale (VAS) Score

EQ-5D VAS: participant rated questionnaire to assess health-related quality of life (QoL) in terms of a single index value. The VAS component rates current health state on a scale from 0 mm (worst imaginable health state) to 100 mm (best imaginable health state); higher scores indicate a better health state.

Time frame: Baseline, thereafter every 3 cycles from Cycle 3 to Cycle 45 (each cycle = 21 days)

Population: ITT population. Here, 'Number of Participants Analyzed' signifies the number of participants evaluable for this outcome measure and 'n' signifies the number of participants evaluable at specified time point.

ArmMeasureGroupValue (MEAN)Dispersion
Pertuzumab + Trastuzumab + Vinorelbine: Separate InfusionChange From Baseline in European Quality of Life-5 Dimensions (EQ-5D) Questionnaire Visual Analogue Scale (VAS) ScoreChange at Cycle 21 (n=30, 27)3.2 units on a scaleStandard Deviation 20
Pertuzumab + Trastuzumab + Vinorelbine: Separate InfusionChange From Baseline in European Quality of Life-5 Dimensions (EQ-5D) Questionnaire Visual Analogue Scale (VAS) ScoreChange at Cycle 3 (n = 83, 90)0.9 units on a scaleStandard Deviation 19.31
Pertuzumab + Trastuzumab + Vinorelbine: Separate InfusionChange From Baseline in European Quality of Life-5 Dimensions (EQ-5D) Questionnaire Visual Analogue Scale (VAS) ScoreChange at Cycle 24 (n=25, 26)3.1 units on a scaleStandard Deviation 17.06
Pertuzumab + Trastuzumab + Vinorelbine: Separate InfusionChange From Baseline in European Quality of Life-5 Dimensions (EQ-5D) Questionnaire Visual Analogue Scale (VAS) ScoreChange at Cycle 30 (n=18, 19)5.4 units on a scaleStandard Deviation 19.87
Pertuzumab + Trastuzumab + Vinorelbine: Separate InfusionChange From Baseline in European Quality of Life-5 Dimensions (EQ-5D) Questionnaire Visual Analogue Scale (VAS) ScoreChange at Cycle 27 (n=21, 24)5.9 units on a scaleStandard Deviation 18.79
Pertuzumab + Trastuzumab + Vinorelbine: Separate InfusionChange From Baseline in European Quality of Life-5 Dimensions (EQ-5D) Questionnaire Visual Analogue Scale (VAS) ScoreChange at Cycle 6 (n=68, 82)1.0 units on a scaleStandard Deviation 23.59
Pertuzumab + Trastuzumab + Vinorelbine: Separate InfusionChange From Baseline in European Quality of Life-5 Dimensions (EQ-5D) Questionnaire Visual Analogue Scale (VAS) ScoreChange at Cycle 33 (n=15, 15)2.9 units on a scaleStandard Deviation 24.03
Pertuzumab + Trastuzumab + Vinorelbine: Separate InfusionChange From Baseline in European Quality of Life-5 Dimensions (EQ-5D) Questionnaire Visual Analogue Scale (VAS) ScoreBaseline (n = 102, 102)69.7 units on a scaleStandard Deviation 22.74
Pertuzumab + Trastuzumab + Vinorelbine: Separate InfusionChange From Baseline in European Quality of Life-5 Dimensions (EQ-5D) Questionnaire Visual Analogue Scale (VAS) ScoreChange at Cycle 36 (n=14, 7)4.8 units on a scaleStandard Deviation 17.37
Pertuzumab + Trastuzumab + Vinorelbine: Separate InfusionChange From Baseline in European Quality of Life-5 Dimensions (EQ-5D) Questionnaire Visual Analogue Scale (VAS) ScoreChange at Cycle 9 (n=67, 68)2.2 units on a scaleStandard Deviation 23
Pertuzumab + Trastuzumab + Vinorelbine: Separate InfusionChange From Baseline in European Quality of Life-5 Dimensions (EQ-5D) Questionnaire Visual Analogue Scale (VAS) ScoreChange at Cycle 39 (n=6, 1)15.8 units on a scaleStandard Deviation 19.85
Pertuzumab + Trastuzumab + Vinorelbine: Separate InfusionChange From Baseline in European Quality of Life-5 Dimensions (EQ-5D) Questionnaire Visual Analogue Scale (VAS) ScoreChange at Cycle 15 (n=43, 43)6.3 units on a scaleStandard Deviation 19.34
Pertuzumab + Trastuzumab + Vinorelbine: Separate InfusionChange From Baseline in European Quality of Life-5 Dimensions (EQ-5D) Questionnaire Visual Analogue Scale (VAS) ScoreChange at Cycle 42 (n=2, 0)-5.0 units on a scaleStandard Deviation 14.14
Pertuzumab + Trastuzumab + Vinorelbine: Separate InfusionChange From Baseline in European Quality of Life-5 Dimensions (EQ-5D) Questionnaire Visual Analogue Scale (VAS) ScoreChange at Cycle 12 (n=53, 59)-1.4 units on a scaleStandard Deviation 30.19
Pertuzumab + Trastuzumab + Vinorelbine: Separate InfusionChange From Baseline in European Quality of Life-5 Dimensions (EQ-5D) Questionnaire Visual Analogue Scale (VAS) ScoreChange at Cycle 45 (n=1, 0)5.0 units on a scale
Pertuzumab + Trastuzumab + Vinorelbine: Separate InfusionChange From Baseline in European Quality of Life-5 Dimensions (EQ-5D) Questionnaire Visual Analogue Scale (VAS) ScoreChange at Cycle 18 (n=32, 28)5.7 units on a scaleStandard Deviation 21.83
Pertuzumab + Trastuzumab + Vinorelbine: Single InfusionChange From Baseline in European Quality of Life-5 Dimensions (EQ-5D) Questionnaire Visual Analogue Scale (VAS) ScoreChange at Cycle 45 (n=1, 0)NA units on a scale
Pertuzumab + Trastuzumab + Vinorelbine: Single InfusionChange From Baseline in European Quality of Life-5 Dimensions (EQ-5D) Questionnaire Visual Analogue Scale (VAS) ScoreChange at Cycle 15 (n=43, 43)8.1 units on a scaleStandard Deviation 24.45
Pertuzumab + Trastuzumab + Vinorelbine: Single InfusionChange From Baseline in European Quality of Life-5 Dimensions (EQ-5D) Questionnaire Visual Analogue Scale (VAS) ScoreChange at Cycle 18 (n=32, 28)6.5 units on a scaleStandard Deviation 22.12
Pertuzumab + Trastuzumab + Vinorelbine: Single InfusionChange From Baseline in European Quality of Life-5 Dimensions (EQ-5D) Questionnaire Visual Analogue Scale (VAS) ScoreChange at Cycle 27 (n=21, 24)1.1 units on a scaleStandard Deviation 20.16
Pertuzumab + Trastuzumab + Vinorelbine: Single InfusionChange From Baseline in European Quality of Life-5 Dimensions (EQ-5D) Questionnaire Visual Analogue Scale (VAS) ScoreBaseline (n = 102, 102)68.6 units on a scaleStandard Deviation 23.58
Pertuzumab + Trastuzumab + Vinorelbine: Single InfusionChange From Baseline in European Quality of Life-5 Dimensions (EQ-5D) Questionnaire Visual Analogue Scale (VAS) ScoreChange at Cycle 3 (n = 83, 90)1.7 units on a scaleStandard Deviation 23.16
Pertuzumab + Trastuzumab + Vinorelbine: Single InfusionChange From Baseline in European Quality of Life-5 Dimensions (EQ-5D) Questionnaire Visual Analogue Scale (VAS) ScoreChange at Cycle 6 (n=68, 82)4.3 units on a scaleStandard Deviation 24.49
Pertuzumab + Trastuzumab + Vinorelbine: Single InfusionChange From Baseline in European Quality of Life-5 Dimensions (EQ-5D) Questionnaire Visual Analogue Scale (VAS) ScoreChange at Cycle 9 (n=67, 68)6.6 units on a scaleStandard Deviation 26.29
Pertuzumab + Trastuzumab + Vinorelbine: Single InfusionChange From Baseline in European Quality of Life-5 Dimensions (EQ-5D) Questionnaire Visual Analogue Scale (VAS) ScoreChange at Cycle 21 (n=30, 27)1.3 units on a scaleStandard Deviation 28.5
Pertuzumab + Trastuzumab + Vinorelbine: Single InfusionChange From Baseline in European Quality of Life-5 Dimensions (EQ-5D) Questionnaire Visual Analogue Scale (VAS) ScoreChange at Cycle 24 (n=25, 26)2.8 units on a scaleStandard Deviation 23.16
Pertuzumab + Trastuzumab + Vinorelbine: Single InfusionChange From Baseline in European Quality of Life-5 Dimensions (EQ-5D) Questionnaire Visual Analogue Scale (VAS) ScoreChange at Cycle 30 (n=18, 19)9.5 units on a scaleStandard Deviation 19.68
Pertuzumab + Trastuzumab + Vinorelbine: Single InfusionChange From Baseline in European Quality of Life-5 Dimensions (EQ-5D) Questionnaire Visual Analogue Scale (VAS) ScoreChange at Cycle 33 (n=15, 15)13.4 units on a scaleStandard Deviation 19.65
Pertuzumab + Trastuzumab + Vinorelbine: Single InfusionChange From Baseline in European Quality of Life-5 Dimensions (EQ-5D) Questionnaire Visual Analogue Scale (VAS) ScoreChange at Cycle 36 (n=14, 7)7.3 units on a scaleStandard Deviation 21.72
Pertuzumab + Trastuzumab + Vinorelbine: Single InfusionChange From Baseline in European Quality of Life-5 Dimensions (EQ-5D) Questionnaire Visual Analogue Scale (VAS) ScoreChange at Cycle 39 (n=6, 1)50.0 units on a scale
Pertuzumab + Trastuzumab + Vinorelbine: Single InfusionChange From Baseline in European Quality of Life-5 Dimensions (EQ-5D) Questionnaire Visual Analogue Scale (VAS) ScoreChange at Cycle 42 (n=2, 0)NA units on a scale
Pertuzumab + Trastuzumab + Vinorelbine: Single InfusionChange From Baseline in European Quality of Life-5 Dimensions (EQ-5D) Questionnaire Visual Analogue Scale (VAS) ScoreChange at Cycle 12 (n=53, 59)6.8 units on a scaleStandard Deviation 23.59
Secondary

Change From Baseline in Functional Assessment of Cancer Therapy-Breast (FACT-B) Questionnaire Score

FACT-B questionnaire is used for assessment of health-related QoL in participants with breast cancer. It consists of 36 items, summarized to 5 subscales: physical (7 items), functional (7 items), social/family (7 items); all 3 ranged from 0 to 28, emotional (6 items) ranging from 0 to 24, and breast cancer subscale (9 items) ranging from 0 to 36; high subscale score represents a better QoL. All single-item measures ranges from 0='Not at all' to 4='Very much'. Total possible score ranged from 0 to 144. High scale score represents a better QoL.

Time frame: Baseline, thereafter every 3 cycles from Cycle 3 to Cycle 45 (each cycle = 21 days)

Population: ITT population. Here, 'Number of Participants Analyzed' signifies the number of participants evaluable for this outcome measure and 'n' signifies the number of participants evaluable at specified time point.

ArmMeasureGroupValue (MEAN)Dispersion
Pertuzumab + Trastuzumab + Vinorelbine: Separate InfusionChange From Baseline in Functional Assessment of Cancer Therapy-Breast (FACT-B) Questionnaire ScoreChange at Cycle 3 (n = 82, 90)-1.96 units on a scaleStandard Deviation 10.872
Pertuzumab + Trastuzumab + Vinorelbine: Separate InfusionChange From Baseline in Functional Assessment of Cancer Therapy-Breast (FACT-B) Questionnaire ScoreChange at Cycle 24 (n= 26, 23)1.19 units on a scaleStandard Deviation 10.66
Pertuzumab + Trastuzumab + Vinorelbine: Separate InfusionChange From Baseline in Functional Assessment of Cancer Therapy-Breast (FACT-B) Questionnaire ScoreChange at Cycle 30 (n=18, 24)3.96 units on a scaleStandard Deviation 11.082
Pertuzumab + Trastuzumab + Vinorelbine: Separate InfusionChange From Baseline in Functional Assessment of Cancer Therapy-Breast (FACT-B) Questionnaire ScoreChange at Cycle 27 (n=20, 22)4.91 units on a scaleStandard Deviation 9.9
Pertuzumab + Trastuzumab + Vinorelbine: Separate InfusionChange From Baseline in Functional Assessment of Cancer Therapy-Breast (FACT-B) Questionnaire ScoreChange at Cycle 9 (n=65, 60)1.44 units on a scaleStandard Deviation 13.189
Pertuzumab + Trastuzumab + Vinorelbine: Separate InfusionChange From Baseline in Functional Assessment of Cancer Therapy-Breast (FACT-B) Questionnaire ScoreChange at Cycle 15 (n=43, 44)2.72 units on a scaleStandard Deviation 10.989
Pertuzumab + Trastuzumab + Vinorelbine: Separate InfusionChange From Baseline in Functional Assessment of Cancer Therapy-Breast (FACT-B) Questionnaire ScoreChange at Cycle 33 (n=14, 17)5.75 units on a scaleStandard Deviation 13.272
Pertuzumab + Trastuzumab + Vinorelbine: Separate InfusionChange From Baseline in Functional Assessment of Cancer Therapy-Breast (FACT-B) Questionnaire ScoreBaseline (n = 100, 100)76.7 units on a scaleStandard Deviation 13.46
Pertuzumab + Trastuzumab + Vinorelbine: Separate InfusionChange From Baseline in Functional Assessment of Cancer Therapy-Breast (FACT-B) Questionnaire ScoreChange at Cycle 36 (n=15, 13)1.26 units on a scaleStandard Deviation 9.21
Pertuzumab + Trastuzumab + Vinorelbine: Separate InfusionChange From Baseline in Functional Assessment of Cancer Therapy-Breast (FACT-B) Questionnaire ScoreChange at Cycle 18 (n=32, 32)4.58 units on a scaleStandard Deviation 11.801
Pertuzumab + Trastuzumab + Vinorelbine: Separate InfusionChange From Baseline in Functional Assessment of Cancer Therapy-Breast (FACT-B) Questionnaire ScoreChange at Cycle 39 (n=6, 6)-3.68 units on a scaleStandard Deviation 16.866
Pertuzumab + Trastuzumab + Vinorelbine: Separate InfusionChange From Baseline in Functional Assessment of Cancer Therapy-Breast (FACT-B) Questionnaire ScoreChange at Cycle 12 (n=52, 51)0.40 units on a scaleStandard Deviation 12.057
Pertuzumab + Trastuzumab + Vinorelbine: Separate InfusionChange From Baseline in Functional Assessment of Cancer Therapy-Breast (FACT-B) Questionnaire ScoreChange at Cycle 42 (n=4, 0)-0.17 units on a scaleStandard Deviation 10.599
Pertuzumab + Trastuzumab + Vinorelbine: Separate InfusionChange From Baseline in Functional Assessment of Cancer Therapy-Breast (FACT-B) Questionnaire ScoreChange at Cycle 21 (n=29, 24)3.22 units on a scaleStandard Deviation 13.178
Pertuzumab + Trastuzumab + Vinorelbine: Separate InfusionChange From Baseline in Functional Assessment of Cancer Therapy-Breast (FACT-B) Questionnaire ScoreChange at Cycle 45 (n=1, 0)1.00 units on a scale
Pertuzumab + Trastuzumab + Vinorelbine: Separate InfusionChange From Baseline in Functional Assessment of Cancer Therapy-Breast (FACT-B) Questionnaire ScoreChange at Cycle 6 (n=70, 79)-0.97 units on a scaleStandard Deviation 12.749
Pertuzumab + Trastuzumab + Vinorelbine: Single InfusionChange From Baseline in Functional Assessment of Cancer Therapy-Breast (FACT-B) Questionnaire ScoreChange at Cycle 45 (n=1, 0)NA units on a scale
Pertuzumab + Trastuzumab + Vinorelbine: Single InfusionChange From Baseline in Functional Assessment of Cancer Therapy-Breast (FACT-B) Questionnaire ScoreChange at Cycle 6 (n=70, 79)0.47 units on a scaleStandard Deviation 13.724
Pertuzumab + Trastuzumab + Vinorelbine: Single InfusionChange From Baseline in Functional Assessment of Cancer Therapy-Breast (FACT-B) Questionnaire ScoreChange at Cycle 9 (n=65, 60)-0.42 units on a scaleStandard Deviation 14.602
Pertuzumab + Trastuzumab + Vinorelbine: Single InfusionChange From Baseline in Functional Assessment of Cancer Therapy-Breast (FACT-B) Questionnaire ScoreChange at Cycle 12 (n=52, 51)0.51 units on a scaleStandard Deviation 14.51
Pertuzumab + Trastuzumab + Vinorelbine: Single InfusionChange From Baseline in Functional Assessment of Cancer Therapy-Breast (FACT-B) Questionnaire ScoreBaseline (n = 100, 100)78.5 units on a scaleStandard Deviation 16.06
Pertuzumab + Trastuzumab + Vinorelbine: Single InfusionChange From Baseline in Functional Assessment of Cancer Therapy-Breast (FACT-B) Questionnaire ScoreChange at Cycle 3 (n = 82, 90)-2.57 units on a scaleStandard Deviation 13.159
Pertuzumab + Trastuzumab + Vinorelbine: Single InfusionChange From Baseline in Functional Assessment of Cancer Therapy-Breast (FACT-B) Questionnaire ScoreChange at Cycle 15 (n=43, 44)0.09 units on a scaleStandard Deviation 13.713
Pertuzumab + Trastuzumab + Vinorelbine: Single InfusionChange From Baseline in Functional Assessment of Cancer Therapy-Breast (FACT-B) Questionnaire ScoreChange at Cycle 18 (n=32, 32)0.51 units on a scaleStandard Deviation 16.512
Pertuzumab + Trastuzumab + Vinorelbine: Single InfusionChange From Baseline in Functional Assessment of Cancer Therapy-Breast (FACT-B) Questionnaire ScoreChange at Cycle 21 (n=29, 24)-0.23 units on a scaleStandard Deviation 16.116
Pertuzumab + Trastuzumab + Vinorelbine: Single InfusionChange From Baseline in Functional Assessment of Cancer Therapy-Breast (FACT-B) Questionnaire ScoreChange at Cycle 24 (n= 26, 23)-1.03 units on a scaleStandard Deviation 14.546
Pertuzumab + Trastuzumab + Vinorelbine: Single InfusionChange From Baseline in Functional Assessment of Cancer Therapy-Breast (FACT-B) Questionnaire ScoreChange at Cycle 27 (n=20, 22)0.55 units on a scaleStandard Deviation 14.185
Pertuzumab + Trastuzumab + Vinorelbine: Single InfusionChange From Baseline in Functional Assessment of Cancer Therapy-Breast (FACT-B) Questionnaire ScoreChange at Cycle 30 (n=18, 24)-0.26 units on a scaleStandard Deviation 17.381
Pertuzumab + Trastuzumab + Vinorelbine: Single InfusionChange From Baseline in Functional Assessment of Cancer Therapy-Breast (FACT-B) Questionnaire ScoreChange at Cycle 33 (n=14, 17)1.76 units on a scaleStandard Deviation 19.179
Pertuzumab + Trastuzumab + Vinorelbine: Single InfusionChange From Baseline in Functional Assessment of Cancer Therapy-Breast (FACT-B) Questionnaire ScoreChange at Cycle 36 (n=15, 13)2.74 units on a scaleStandard Deviation 14.354
Pertuzumab + Trastuzumab + Vinorelbine: Single InfusionChange From Baseline in Functional Assessment of Cancer Therapy-Breast (FACT-B) Questionnaire ScoreChange at Cycle 39 (n=6, 6)7.33 units on a scaleStandard Deviation 20.992
Pertuzumab + Trastuzumab + Vinorelbine: Single InfusionChange From Baseline in Functional Assessment of Cancer Therapy-Breast (FACT-B) Questionnaire ScoreChange at Cycle 42 (n=4, 0)NA units on a scale
Secondary

Duration of Response (DOR) as Assessed by Investigator According to RECIST v 1.1

DOR, in participants with a BOR of CR or PR, was defined as the period from the date of initial PR or CR until the date of PD or death from any cause. Participants with no documented PD or death after CR or PR were censored at the last date at which they were known to have had the CR or PR, respectively (regardless of the response at intermediate assessments). CR: the disappearance of all TLs and SA reduction to \<10 mm for nodal TLs/ non-TLs. PR: \>/=30% decrease in SD of TLs, taking as reference the baseline SD. Confirmation of response at 2 consecutive tumor assessments \>/=4 weeks apart was required. PD: \>/=20% relative increase and \>/=5 mm of absolute increase in the SD of TLs, taking as reference the smallest SD recorded since treatment started, or appearance of 1 or more new lesions. The 95% CI was computed using log-log transformation.

Time frame: Baseline, every 3 cycles up to 36 months, and every 6 cycles thereafter if progression free after 36 months, 28 days after end of treatment, every 3 months thereafter (maximum up to approximately 3.5 years)

Population: ITT population. Only participants with a BOR of CR or PR and with measurable disease at baseline were included in the analysis.

ArmMeasureValue (MEDIAN)
Pertuzumab + Trastuzumab + Vinorelbine: Separate InfusionDuration of Response (DOR) as Assessed by Investigator According to RECIST v 1.113.3 months
Pertuzumab + Trastuzumab + Vinorelbine: Single InfusionDuration of Response (DOR) as Assessed by Investigator According to RECIST v 1.111.8 months
Secondary

Overall Survival (OS)

OS was defined as the time from first intake of any study medication to the date of death, regardless of the cause of death. Participants who were known to be alive at the time of the analysis were censored at the date of the last follow-up assessment. Participants without follow-up assessment were censored at the day of last study treatment, and participants with no post-baseline information were censored at the date of first study treatment plus 1 day. Participants who died due to any cause were considered as having an event. The median OS was estimated using Kaplan-Meier method. The 95% CI was computed using log-log transformation.

Time frame: Baseline until death (up to approximately 3.5 years)

Population: ITT population

ArmMeasureValue (MEDIAN)
Pertuzumab + Trastuzumab + Vinorelbine: Separate InfusionOverall Survival (OS)NA months
Pertuzumab + Trastuzumab + Vinorelbine: Single InfusionOverall Survival (OS)NA months
Secondary

Percentage of Participants Who Died From Any Cause

Percentage of participants who died due to any cause was reported.

Time frame: Baseline until death (up to approximately 3.5 years)

Population: ITT population

ArmMeasureValue (NUMBER)
Pertuzumab + Trastuzumab + Vinorelbine: Separate InfusionPercentage of Participants Who Died From Any Cause21.7 percentage of participants
Pertuzumab + Trastuzumab + Vinorelbine: Single InfusionPercentage of Participants Who Died From Any Cause21.5 percentage of participants
Secondary

Percentage of Participants With Disease Progression as Assessed by Investigator According to RECIST v1.1

PD was defined as \>/=20% relative increase and \>/=5 mm of absolute increase in the SD of TLs, taking as reference the smallest SD recorded since treatment started, or appearance of 1 or more new lesions. Percentage of participants with radio-graphically documented PD as assessed by investigator according to RECIST v1.1 was reported.

Time frame: Baseline, every 3 cycles up to 36 months, and every 6 cycles thereafter if progression free after 36 months, 28 days after end of treatment, every 3 months thereafter (maximum up to approximately 3.5 years)

Population: ITT population

ArmMeasureValue (NUMBER)
Pertuzumab + Trastuzumab + Vinorelbine: Separate InfusionPercentage of Participants With Disease Progression as Assessed by Investigator According to RECIST v1.167.9 percentage of participants
Pertuzumab + Trastuzumab + Vinorelbine: Single InfusionPercentage of Participants With Disease Progression as Assessed by Investigator According to RECIST v1.161.7 percentage of participants
Secondary

Percentage of Participants With Disease Progression as Assessed by Investigator According to RECIST v1.1 or Death From Any Cause

PD was defined as \>/=20% relative increase and \>/=5 mm of absolute increase in the SD of TLs, taking as reference the smallest SD recorded since treatment started, or appearance of 1 or more new lesions. Percentage of participants with radio-graphically documented PD as assessed by investigator according to RECIST v1.1 or death due to any cause was reported.

Time frame: Baseline, every 3 cycles up to 36 months, and every 6 cycles thereafter if progression free after 36 months, 28 days after end of treatment, every 3 months thereafter (maximum up to approximately 3.5 years)

Population: ITT population

ArmMeasureValue (NUMBER)
Pertuzumab + Trastuzumab + Vinorelbine: Separate InfusionPercentage of Participants With Disease Progression as Assessed by Investigator According to RECIST v1.1 or Death From Any Cause69.8 percentage of participants
Pertuzumab + Trastuzumab + Vinorelbine: Single InfusionPercentage of Participants With Disease Progression as Assessed by Investigator According to RECIST v1.1 or Death From Any Cause67.3 percentage of participants
Secondary

Progression-free Survival (PFS) as Assessed by Investigator According to RECIST v 1.1

PFS was defined as the time from first intake of any study medication until the first radio-graphically documented PD as assessed by investigator according to RECIST v1.1 or death due to any cause, whichever occurred first. Participants with no PFS events were censored at the time of the last evaluable tumor assessment. Participants with no baseline or no tumor assessment after the baseline visit were censored on the date of first study treatment. PD: \>/=20% relative increase and \>/=5 mm of absolute increase in the SD of TLs, taking as reference the smallest SD recorded since treatment started, or appearance of 1 or more new lesions. Participants who had radio-graphically documented PD as assessed by investigator according to RECIST v1.1 or died due to any cause were considered as having an event. The median PFS was estimated using Kaplan-Meier method. The 95% CI was computed using log-log transformation.

Time frame: Baseline, every 3 cycles up to 36 months, and every 6 cycles thereafter if progression free after 36 months, 28 days after end of treatment, every 3 months thereafter (maximum up to approximately 3.5 years)

Population: ITT population

ArmMeasureValue (MEDIAN)
Pertuzumab + Trastuzumab + Vinorelbine: Separate InfusionProgression-free Survival (PFS) as Assessed by Investigator According to RECIST v 1.114.3 months
Pertuzumab + Trastuzumab + Vinorelbine: Single InfusionProgression-free Survival (PFS) as Assessed by Investigator According to RECIST v 1.111.5 months
Secondary

Time to Progression (TTP) as Assessed by Investigator According to RECIST v 1.1

TTP was defined as the time from first intake of any study medication until the first radio-graphically documented PD as assessed by investigator according to RECIST v1.1. Participants who did not have a radio-graphically documented PD and had died due to reason other than PD were censored on the last available tumor assessment prior to the death date. Participants with no baseline or no tumor assessment after the baseline visit were censored on the date of first study treatment. PD was defined as \>/=20% relative increase and \>/=5 mm of absolute increase in the SD of TLs, taking as reference the smallest SD recorded since treatment started, or appearance of 1 or more new lesions. Participants who had radio-graphically documented PD as assessed by investigator according to RECIST v1.1 were considered as having an event. The median TTP was estimated using Kaplan-Meier method. The 95% CI was computed using log-log transformation.

Time frame: Baseline, every 3 cycles up to 36 months, and every 6 cycles thereafter if progression free after 36 months, 28 days after end of treatment, every 3 months thereafter (maximum up to approximately 3.5 years)

Population: ITT population

ArmMeasureValue (MEDIAN)
Pertuzumab + Trastuzumab + Vinorelbine: Separate InfusionTime to Progression (TTP) as Assessed by Investigator According to RECIST v 1.114.9 months
Pertuzumab + Trastuzumab + Vinorelbine: Single InfusionTime to Progression (TTP) as Assessed by Investigator According to RECIST v 1.112.8 months
Secondary

Time to Response as Assessed by Investigator According to RECIST v 1.1

For participants with a BOR of CR or PR, time to response = (Date of first confirmed CR/PR - Date of first study treatment) + 1. For participants without a CR or PR, time to response = (Date of adequate last tumor assessment - Date of first study treatment) + 1. For participant with no tumor assessment (or if all assessments were progressive disease \[PD\]) the censoring day was set to date of first study treatment +1. CR: the disappearance of all TLs and SA reduction to \<10 mm for nodal TLs/ non-TLs. PR: \>/=30% decrease in SD of TLs, taking as reference the baseline SD. Confirmation of response at 2 consecutive tumor assessments \>/=4 weeks apart was required. PD: \>/=20% relative increase and \>/=5 mm of absolute increase in the SD of TLs, taking as reference the smallest SD recorded since treatment started, or appearance of 1 or more new lesions. The 95% CI was computed using log-log transformation.

Time frame: Baseline, every 3 cycles up to 36 months, and every 6 cycles thereafter if progression free after 36 months, 28 days after end of treatment, every 3 months thereafter (maximum up to approximately 3.5 years)

Population: ITT population. Only participants with measurable disease at baseline were included in the analysis.

ArmMeasureValue (MEDIAN)
Pertuzumab + Trastuzumab + Vinorelbine: Separate InfusionTime to Response as Assessed by Investigator According to RECIST v 1.12.1 months
Pertuzumab + Trastuzumab + Vinorelbine: Single InfusionTime to Response as Assessed by Investigator According to RECIST v 1.12.2 months

Source: ClinicalTrials.gov · Data processed: Mar 22, 2026