Trial Outcomes & Findings for Extension Study to Provide Adjuvant Treatment Following Neoadjuvant Treatment and Surgical Resection in Protocol TX05-03 (NCT NCT04109391)

NCT ID: NCT04109391

Last Updated: 2022-10-26

Results Overview

Samples for the evaluation of anti-drug antibodies (ADA), including neutralizing antibodies (Nab) were obtained before the administration of Cycle 1 (Week 0), Cycle 6 (Week 15), and the EOT/ET Visit. Only subjects with a positive ADA result were further tested for ADA cross-reactivity and Nab. Only subjects with a positive Nab result were further tested for Nab cross-reactivity.

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

338 participants

Primary outcome timeframe

Assessed from first infusion through end of treatment (Week 45) or Early Termination visit. Each cycle is 3 weeks.

Results posted on

2022-10-26

Participant Flow

Participant milestones

Participant milestones
Measure
Test Product (TX05 Only)
IV trastuzumab (TX05) 8 mg/kg loading dose and then 6 mg/kg every 3 weeks for up to 13 cycles TX05 (trastuzumab): Subjects will receive up to 13 cycles of adjuvant treatment. These subjects received TX05 on the TX05-03 study and continued to receive TX05 in this extension study.
Reference Therapy (Herceptin Only)
IV trastuzumab (Herceptin) TX05 8 mg/kg loading dose and then 6 mg/kg every 3 weeks for up to 13 cycles Herceptin (trastuzumab): Subjects will receive up to 13 cycles of adjuvant treatment. These subjects received Herceptin on the TX05-03 study and continued to receive Herceptin in this extension study.
Test Product (Herceptin/TX05 Transition)
IV trastuzumab (TX05) 8 mg/kg loading dose and then 6 mg/kg every 3 weeks for up to 13 cycles TX05 (trastuzumab): Subjects will receive up to 13 cycles of adjuvant treatment. These subjects received Herceptin on the TX05-03 study and were randomized to receive TX05 in this extension study.
Overall Study
STARTED
175
82
81
Overall Study
COMPLETED
165
77
77
Overall Study
NOT COMPLETED
10
5
4

Reasons for withdrawal

Reasons for withdrawal
Measure
Test Product (TX05 Only)
IV trastuzumab (TX05) 8 mg/kg loading dose and then 6 mg/kg every 3 weeks for up to 13 cycles TX05 (trastuzumab): Subjects will receive up to 13 cycles of adjuvant treatment. These subjects received TX05 on the TX05-03 study and continued to receive TX05 in this extension study.
Reference Therapy (Herceptin Only)
IV trastuzumab (Herceptin) TX05 8 mg/kg loading dose and then 6 mg/kg every 3 weeks for up to 13 cycles Herceptin (trastuzumab): Subjects will receive up to 13 cycles of adjuvant treatment. These subjects received Herceptin on the TX05-03 study and continued to receive Herceptin in this extension study.
Test Product (Herceptin/TX05 Transition)
IV trastuzumab (TX05) 8 mg/kg loading dose and then 6 mg/kg every 3 weeks for up to 13 cycles TX05 (trastuzumab): Subjects will receive up to 13 cycles of adjuvant treatment. These subjects received Herceptin on the TX05-03 study and were randomized to receive TX05 in this extension study.
Overall Study
Adverse Event
2
2
0
Overall Study
Withdrawal by Subject
2
0
0
Overall Study
Pregnancy
1
0
0
Overall Study
Subject refused to continue, AE and 2 patients only received 10 of 13 cycles
3
1
0
Overall Study
Lost to Follow-up
0
0
1
Overall Study
Lack of Efficacy
2
2
3

Baseline Characteristics

Extension Study to Provide Adjuvant Treatment Following Neoadjuvant Treatment and Surgical Resection in Protocol TX05-03

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Test Product (TX05 Only)
n=175 Participants
IV trastuzumab (TX05) 8 mg/kg loading dose and then 6 mg/kg every 3 weeks for up to 13 cycles TX05 (trastuzumab): Subjects will receive up to 13 cycles of adjuvant treatment. These subjects received TX05 on the TX05-03 study and continued to receive TX05 in this extension study.
Reference Therapy (Herceptin Only)
n=82 Participants
IV trastuzumab (Herceptin) TX05 8 mg/kg loading dose and then 6 mg/kg every 3 weeks for up to 13 cycles Herceptin (trastuzumab): Subjects will receive up to 13 cycles of adjuvant treatment. These subjects received Herceptin on the TX05-03 study and continued to receive Herceptin in this extension study.
Test Product (Herceptin/TX05 Transition)
n=81 Participants
IV trastuzumab (TX05) 8 mg/kg loading dose and then 6 mg/kg every 3 weeks for up to 13 cycles TX05 (trastuzumab): Subjects will receive up to 13 cycles of adjuvant treatment. These subjects received Herceptin on the TX05-03 study and were randomized to receive TX05 in this extension study.
Total
n=338 Participants
Total of all reporting groups
Age, Continuous
55.3 years
STANDARD_DEVIATION 11.43 • n=99 Participants
53.7 years
STANDARD_DEVIATION 10.12 • n=107 Participants
54.0 years
STANDARD_DEVIATION 10.71 • n=206 Participants
54.6 years
STANDARD_DEVIATION 10.95 • n=7 Participants
Sex: Female, Male
Female
175 Participants
n=99 Participants
82 Participants
n=107 Participants
81 Participants
n=206 Participants
338 Participants
n=7 Participants
Sex: Female, Male
Male
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
0 Participants
n=7 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
29 Participants
n=99 Participants
12 Participants
n=107 Participants
10 Participants
n=206 Participants
51 Participants
n=7 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
146 Participants
n=99 Participants
70 Participants
n=107 Participants
71 Participants
n=206 Participants
287 Participants
n=7 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
0 Participants
n=7 Participants
Race (NIH/OMB)
American Indian or Alaska Native
5 Participants
n=99 Participants
1 Participants
n=107 Participants
2 Participants
n=206 Participants
8 Participants
n=7 Participants
Race (NIH/OMB)
Asian
23 Participants
n=99 Participants
13 Participants
n=107 Participants
17 Participants
n=206 Participants
53 Participants
n=7 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
0 Participants
n=7 Participants
Race (NIH/OMB)
Black or African American
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
0 Participants
n=7 Participants
Race (NIH/OMB)
White
136 Participants
n=99 Participants
64 Participants
n=107 Participants
57 Participants
n=206 Participants
257 Participants
n=7 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
0 Participants
n=7 Participants
Race (NIH/OMB)
Unknown or Not Reported
11 Participants
n=99 Participants
4 Participants
n=107 Participants
5 Participants
n=206 Participants
20 Participants
n=7 Participants
Hormone Receptor Status
Positive
100 Participants
n=99 Participants
50 Participants
n=107 Participants
48 Participants
n=206 Participants
198 Participants
n=7 Participants
Hormone Receptor Status
Negative
75 Participants
n=99 Participants
32 Participants
n=107 Participants
33 Participants
n=206 Participants
140 Participants
n=7 Participants
Tumor Stage
Stage IIa
65 Participants
n=99 Participants
28 Participants
n=107 Participants
32 Participants
n=206 Participants
125 Participants
n=7 Participants
Tumor Stage
Stage IIb
78 Participants
n=99 Participants
41 Participants
n=107 Participants
35 Participants
n=206 Participants
154 Participants
n=7 Participants
Tumor Stage
Stage IIIa
32 Participants
n=99 Participants
13 Participants
n=107 Participants
14 Participants
n=206 Participants
59 Participants
n=7 Participants
ECOG
Grade 0
142 Participants
n=99 Participants
56 Participants
n=107 Participants
64 Participants
n=206 Participants
262 Participants
n=7 Participants
ECOG
Grade 1
29 Participants
n=99 Participants
24 Participants
n=107 Participants
16 Participants
n=206 Participants
69 Participants
n=7 Participants
ECOG
Grade 2
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
0 Participants
n=7 Participants
ECOG
Grade 3
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
0 Participants
n=7 Participants
ECOG
Grade 4
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
0 Participants
n=7 Participants
ECOG
Grade 5
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
0 Participants
n=7 Participants
ECOG
Missing
4 Participants
n=99 Participants
2 Participants
n=107 Participants
1 Participants
n=206 Participants
7 Participants
n=7 Participants

PRIMARY outcome

Timeframe: Assessed from first infusion through end of treatment (Week 45) or Early Termination visit. Each cycle is 3 weeks.

Samples for the evaluation of anti-drug antibodies (ADA), including neutralizing antibodies (Nab) were obtained before the administration of Cycle 1 (Week 0), Cycle 6 (Week 15), and the EOT/ET Visit. Only subjects with a positive ADA result were further tested for ADA cross-reactivity and Nab. Only subjects with a positive Nab result were further tested for Nab cross-reactivity.

Outcome measures

Outcome measures
Measure
Test Product (TX05 Only)
n=175 Participants
IV trastuzumab (TX05) 8 mg/kg loading dose and then 6 mg/kg every 3 weeks for up to 13 cycles TX05 (trastuzumab): Subjects will receive up to 13 cycles of adjuvant treatment. These subjects received TX05 on the TX05-03 study and continued to receive TX05 in this extension study.
Reference Therapy (Herceptin Only)
n=82 Participants
IV trastuzumab (Herceptin) TX05 8 mg/kg loading dose and then 6 mg/kg every 3 weeks for up to 13 cycles Herceptin (trastuzumab): Subjects will receive up to 13 cycles of adjuvant treatment. These subjects received Herceptin on the TX05-03 study and continued to receive Herceptin in this extension study.
Test Product (Herceptin/TX05 Transition)
n=81 Participants
IV trastuzumab (TX05) 8 mg/kg loading dose and then 6 mg/kg every 3 weeks for up to 13 cycles TX05 (trastuzumab): Subjects will receive up to 13 cycles of adjuvant treatment. These subjects received Herceptin on the TX05-03 study and were randomized to receive TX05 in this extension study.
Immunogenicity Assessments (ADA and Nab)
Baseline · ADA Positive
3 Participants
2 Participants
3 Participants
Immunogenicity Assessments (ADA and Nab)
Baseline · Nab Positive
0 Participants
0 Participants
0 Participants
Immunogenicity Assessments (ADA and Nab)
Baseline · ADA Negative
159 Participants
77 Participants
74 Participants
Immunogenicity Assessments (ADA and Nab)
Baseline · Not evaluated
13 Participants
3 Participants
4 Participants
Immunogenicity Assessments (ADA and Nab)
Cycle 6 Week 15 · ADA Positive
1 Participants
1 Participants
4 Participants
Immunogenicity Assessments (ADA and Nab)
End of Study/Early Terminiation · Nab Positive
0 Participants
0 Participants
0 Participants
Immunogenicity Assessments (ADA and Nab)
Cycle 6 Week 15 · Nab Positive
0 Participants
0 Participants
0 Participants
Immunogenicity Assessments (ADA and Nab)
Cycle 6 Week 15 · ADA Negative
164 Participants
74 Participants
74 Participants
Immunogenicity Assessments (ADA and Nab)
Cycle 6 Week 15 · Not evaluated
10 Participants
7 Participants
3 Participants
Immunogenicity Assessments (ADA and Nab)
End of Study/Early Terminiation · ADA Positive
4 Participants
1 Participants
2 Participants
Immunogenicity Assessments (ADA and Nab)
End of Study/Early Terminiation · ADA Negative
146 Participants
75 Participants
71 Participants
Immunogenicity Assessments (ADA and Nab)
End of Study/Early Terminiation · Not evaluated
25 Participants
6 Participants
8 Participants

PRIMARY outcome

Timeframe: Through study completion/end of treatment (Week 45).

DFS, defined as the time from randomization in the neoadjuvant study (Protocol TX05-03) to the documentation of a first failure, where a failure was the recurrence of breast cancer or a diagnosis of a second primary cancer.

Outcome measures

Outcome measures
Measure
Test Product (TX05 Only)
n=175 Participants
IV trastuzumab (TX05) 8 mg/kg loading dose and then 6 mg/kg every 3 weeks for up to 13 cycles TX05 (trastuzumab): Subjects will receive up to 13 cycles of adjuvant treatment. These subjects received TX05 on the TX05-03 study and continued to receive TX05 in this extension study.
Reference Therapy (Herceptin Only)
n=82 Participants
IV trastuzumab (Herceptin) TX05 8 mg/kg loading dose and then 6 mg/kg every 3 weeks for up to 13 cycles Herceptin (trastuzumab): Subjects will receive up to 13 cycles of adjuvant treatment. These subjects received Herceptin on the TX05-03 study and continued to receive Herceptin in this extension study.
Test Product (Herceptin/TX05 Transition)
n=81 Participants
IV trastuzumab (TX05) 8 mg/kg loading dose and then 6 mg/kg every 3 weeks for up to 13 cycles TX05 (trastuzumab): Subjects will receive up to 13 cycles of adjuvant treatment. These subjects received Herceptin on the TX05-03 study and were randomized to receive TX05 in this extension study.
Disease-Free Survival
Discontinued form Study
8 Participants
4 Participants
2 Participants
Disease-Free Survival
Recurrence of Breast Cancer or a Diagnosis of a Second Primary Cancer
6 Participants
5 Participants
3 Participants
Disease-Free Survival
No recurrence of Breast Cancer and No Diagnosis of a Second Primary Cancer
160 Participants
73 Participants
76 Participants
Disease-Free Survival
No Post Baseline or No Evaluable Post Baseline
1 Participants
0 Participants
0 Participants
Disease-Free Survival
No Baseline or No Evaluable Baseline Assessment
0 Participants
0 Participants
0 Participants
Disease-Free Survival
Death
0 Participants
0 Participants
0 Participants

PRIMARY outcome

Timeframe: Through study completion/end of treatment (Week 45).

OS, defined as the time from randomization in the neoadjuvant study (Protocol TX05-03) until death from any cause.

Outcome measures

Outcome measures
Measure
Test Product (TX05 Only)
n=175 Participants
IV trastuzumab (TX05) 8 mg/kg loading dose and then 6 mg/kg every 3 weeks for up to 13 cycles TX05 (trastuzumab): Subjects will receive up to 13 cycles of adjuvant treatment. These subjects received TX05 on the TX05-03 study and continued to receive TX05 in this extension study.
Reference Therapy (Herceptin Only)
n=82 Participants
IV trastuzumab (Herceptin) TX05 8 mg/kg loading dose and then 6 mg/kg every 3 weeks for up to 13 cycles Herceptin (trastuzumab): Subjects will receive up to 13 cycles of adjuvant treatment. These subjects received Herceptin on the TX05-03 study and continued to receive Herceptin in this extension study.
Test Product (Herceptin/TX05 Transition)
n=81 Participants
IV trastuzumab (TX05) 8 mg/kg loading dose and then 6 mg/kg every 3 weeks for up to 13 cycles TX05 (trastuzumab): Subjects will receive up to 13 cycles of adjuvant treatment. These subjects received Herceptin on the TX05-03 study and were randomized to receive TX05 in this extension study.
Overall Survival
Last known alive
175 Participants
82 Participants
80 Participants
Overall Survival
Lost to Follow-Up
0 Participants
0 Participants
0 Participants
Overall Survival
Death
0 Participants
0 Participants
1 Participants

Adverse Events

Test Product (TX05 Only)

Serious events: 4 serious events
Other events: 49 other events
Deaths: 0 deaths

Reference Therapy (Herceptin Only)

Serious events: 3 serious events
Other events: 15 other events
Deaths: 0 deaths

Test Product (Herceptin/TX05 Transition)

Serious events: 2 serious events
Other events: 15 other events
Deaths: 1 deaths

Serious adverse events

Serious adverse events
Measure
Test Product (TX05 Only)
n=175 participants at risk
IV trastuzumab (TX05) 8 mg/kg loading dose and then 6 mg/kg every 3 weeks for up to 13 cycles TX05 (trastuzumab): Subjects will receive up to 13 cycles of adjuvant treatment. These subjects received TX05 on the TX05-03 study and continued to receive TX05 in this extension study.
Reference Therapy (Herceptin Only)
n=82 participants at risk
IV trastuzumab (Herceptin) TX05 8 mg/kg loading dose and then 6 mg/kg every 3 weeks for up to 13 cycles Herceptin (trastuzumab): Subjects will receive up to 13 cycles of adjuvant treatment. These subjects received Herceptin on the TX05-03 study and continued to receive Herceptin in this extension study.
Test Product (Herceptin/TX05 Transition)
n=81 participants at risk
IV trastuzumab (TX05) 8 mg/kg loading dose and then 6 mg/kg every 3 weeks for up to 13 cycles TX05 (trastuzumab): Subjects will receive up to 13 cycles of adjuvant treatment. These subjects received Herceptin on the TX05-03 study and were randomized to receive TX05 in this extension study.
Infections and infestations
COVID-19
1.1%
2/175 • Number of events 2 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.
0.00%
0/82 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.
0.00%
0/81 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.
Musculoskeletal and connective tissue disorders
Intervertebral disc protrusion
0.57%
1/175 • Number of events 1 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.
0.00%
0/82 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.
0.00%
0/81 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.
Respiratory, thoracic and mediastinal disorders
Pulmonary embolism
0.57%
1/175 • Number of events 1 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.
0.00%
0/82 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.
0.00%
0/81 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.
Infections and infestations
Gastrointestinal infection/
0.00%
0/175 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.
1.2%
1/82 • Number of events 1 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.
0.00%
0/81 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.
Injury, poisoning and procedural complications
Femoral neck fracture/
0.00%
0/175 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.
1.2%
1/82 • Number of events 1 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.
0.00%
0/81 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.
Infections and infestations
COVID-19 pneumonia
0.00%
0/175 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.
1.2%
1/82 • Number of events 1 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.
0.00%
0/81 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.
Hepatobiliary disorders
Hepatic failure
0.00%
0/175 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.
0.00%
0/82 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.
1.2%
1/81 • Number of events 1 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.
Nervous system disorders
Ischaemic stroke
0.00%
0/175 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.
0.00%
0/82 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.
1.2%
1/81 • Number of events 1 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.
Renal and urinary disorders
Renal Colic
0.00%
0/175 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.
1.2%
1/82 • Number of events 1 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.
0.00%
0/81 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.

Other adverse events

Other adverse events
Measure
Test Product (TX05 Only)
n=175 participants at risk
IV trastuzumab (TX05) 8 mg/kg loading dose and then 6 mg/kg every 3 weeks for up to 13 cycles TX05 (trastuzumab): Subjects will receive up to 13 cycles of adjuvant treatment. These subjects received TX05 on the TX05-03 study and continued to receive TX05 in this extension study.
Reference Therapy (Herceptin Only)
n=82 participants at risk
IV trastuzumab (Herceptin) TX05 8 mg/kg loading dose and then 6 mg/kg every 3 weeks for up to 13 cycles Herceptin (trastuzumab): Subjects will receive up to 13 cycles of adjuvant treatment. These subjects received Herceptin on the TX05-03 study and continued to receive Herceptin in this extension study.
Test Product (Herceptin/TX05 Transition)
n=81 participants at risk
IV trastuzumab (TX05) 8 mg/kg loading dose and then 6 mg/kg every 3 weeks for up to 13 cycles TX05 (trastuzumab): Subjects will receive up to 13 cycles of adjuvant treatment. These subjects received Herceptin on the TX05-03 study and were randomized to receive TX05 in this extension study.
Infections and infestations
Respiratory Tract Infection
3.4%
6/175 • Number of events 6 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.
2.4%
2/82 • Number of events 2 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.
6.2%
5/81 • Number of events 5 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.
Investigations
Alanine Aminotransferase Increased
5.7%
10/175 • Number of events 11 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.
2.4%
2/82 • Number of events 6 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.
1.2%
1/81 • Number of events 1 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.
Investigations
Aspartate Aminotransferase Increased
5.1%
9/175 • Number of events 10 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.
1.2%
1/82 • Number of events 3 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.
3.7%
3/81 • Number of events 3 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.
Nervous system disorders
Headache
5.1%
9/175 • Number of events 13 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.
6.1%
5/82 • Number of events 8 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.
3.7%
3/81 • Number of events 4 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.
Musculoskeletal and connective tissue disorders
Arthralgia
4.0%
7/175 • Number of events 8 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.
6.1%
5/82 • Number of events 5 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.
2.5%
2/81 • Number of events 2 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.
General disorders
Asthenia
5.7%
10/175 • Number of events 12 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.
4.9%
4/82 • Number of events 4 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.
3.7%
3/81 • Number of events 4 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.
Injury, poisoning and procedural complications
Radiation Skin Injury
7.4%
13/175 • Number of events 13 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.
6.1%
5/82 • Number of events 5 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.
0.00%
0/81 • Adverse Events were recorded from Day 1 (Week 0) of Cycle 1 of study treatment through End of Treatment (Week 45), with the exception of any ongoing study drug-related AEs, which were to be followed until the event was resolved, considered stable, or the investigator determined the AE was no longer clinically significant.
Ongoing drug-related AEs and SAEs from the neoadjuvant study (Protocol TX05-03) and any SAEs that occurred after completion of the neoadjuvant study were recorded at Screening in the subject's medical history, while AEs occurring in this extension study were recorded from Day 1 (Week 0) of Cycle 1 of study treatment.

Additional Information

Study Director

Tanvex

Phone: 19494838507

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place

Restriction type: OTHER