Trial Outcomes & Findings for Ixabepilone and Cyclophosphamide as Neoadjuvant Therapy in HER-2 Negative Breast Cancer (NCT NCT00866905)

NCT ID: NCT00866905

Last Updated: 2021-11-22

Results Overview

Pathologic complete response (pCR) rate will be determined by the pathologic evaluation of breast and lymph node samples collected at the time of surgery. pCR is defined as no residual disease in breast or lymph nodes in resected tissue samples.

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

168 participants

Primary outcome timeframe

6 months

Results posted on

2021-11-22

Participant Flow

Participant milestones

Participant milestones
Measure
Ixabepilone/Cyclophosphamide
Ixabepilone: 40 mg/m2 via intraveous (IV) infusion over 3 hours Cyclophosphamide: 600 mg/m2 via IV infusion per institutional guidelines
Overall Study
STARTED
168
Overall Study
COMPLETED
135
Overall Study
NOT COMPLETED
33

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Ixabepilone and Cyclophosphamide as Neoadjuvant Therapy in HER-2 Negative Breast Cancer

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Arm/Group 1
n=168 Participants
All patients who received at least one dose of treatment.
Age, Continuous
53 Years
n=5 Participants
Sex: Female, Male
Female
168 Participants
n=5 Participants
Sex: Female, Male
Male
0 Participants
n=5 Participants
Region of Enrollment
United States
168 participants
n=5 Participants

PRIMARY outcome

Timeframe: 6 months

Population: To be evaluable, patients had to undergo surgery after neoadjuvant therapy. Out of 168 patients, only 161 patients underwent surgery after neoadjuvant therapy and were included in this analysis.

Pathologic complete response (pCR) rate will be determined by the pathologic evaluation of breast and lymph node samples collected at the time of surgery. pCR is defined as no residual disease in breast or lymph nodes in resected tissue samples.

Outcome measures

Outcome measures
Measure
Ixabepilone/Cyclophosphamide
n=161 Participants
Systemic Therapy followed by surgery and possible radiation therapy
Pathologic Complete Response Rate (pCR)
27 participants

SECONDARY outcome

Timeframe: 3 months

Non hematologic treatment-related grade 4 toxicities measured according to CTCAE 3.0

Outcome measures

Outcome measures
Measure
Ixabepilone/Cyclophosphamide
n=168 Participants
Systemic Therapy followed by surgery and possible radiation therapy
Absence of Grade-4 Non-hematologic Toxicity Excluding, Alopecia, Nausea, Vomiting and Bone Pain
Fatigue
1 participants
Absence of Grade-4 Non-hematologic Toxicity Excluding, Alopecia, Nausea, Vomiting and Bone Pain
Peripheral neuropathy
1 participants
Absence of Grade-4 Non-hematologic Toxicity Excluding, Alopecia, Nausea, Vomiting and Bone Pain
Arthralgia/myalgia
1 participants

SECONDARY outcome

Timeframe: 36 months

Population: All patients who received a dose of study treatment.

Overall survival (OS) determined as the time between day 1 cycle 1 to the date of death from any cause. The percentage of patients who were alive at 3 years, estimated by Kaplan Meier method as the probability of being event free at 3 years is reported here.

Outcome measures

Outcome measures
Measure
Ixabepilone/Cyclophosphamide
n=168 Participants
Systemic Therapy followed by surgery and possible radiation therapy
Overall Survival
90 percentage of participants

SECONDARY outcome

Timeframe: 36 Months

Population: All patients who received a dose of study treatment.

Defined as the time between Day 1 Cycle 1, and date of first documented recurrence, initiation of additional chemotherapy, or death.

Outcome measures

Outcome measures
Measure
Ixabepilone/Cyclophosphamide
n=168 Participants
Systemic Therapy followed by surgery and possible radiation therapy
Disease Free Survival
NA months
Median and 95% confidence interval were not estimable by Kaplan-Meier method due to insufficient observed events.

Adverse Events

Ixabepilone/Cyclophosphamide

Serious events: 6 serious events
Other events: 167 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Ixabepilone/Cyclophosphamide
n=168 participants at risk
All patients who received a dose of study treatment
Psychiatric disorders
DEPRESSION
0.60%
1/168 • Number of events 1
Gastrointestinal disorders
ENTERITIS
0.60%
1/168 • Number of events 1
Blood and lymphatic system disorders
FEBRILE NEUTROPENIA
1.8%
3/168 • Number of events 3
Nervous system disorders
PERIPHERAL NEUROPATHY
1.2%
2/168 • Number of events 2

Other adverse events

Other adverse events
Measure
Ixabepilone/Cyclophosphamide
n=168 participants at risk
All patients who received a dose of study treatment
Gastrointestinal disorders
ABDOMINAL PAIN
8.3%
14/168 • Number of events 29
Immune system disorders
ALLERGIC REACTION
6.0%
10/168 • Number of events 10
Respiratory, thoracic and mediastinal disorders
ALLERGIC RHINITIS
8.9%
15/168 • Number of events 38
Skin and subcutaneous tissue disorders
ALOPECIA
59.5%
100/168 • Number of events 390
Blood and lymphatic system disorders
ANEMIA
70.2%
118/168 • Number of events 430
Metabolism and nutrition disorders
ANOREXIA
24.4%
41/168 • Number of events 92
Psychiatric disorders
ANXIETY
14.9%
25/168 • Number of events 79
Musculoskeletal and connective tissue disorders
ARTHRALGIA
51.8%
87/168 • Number of events 290
Musculoskeletal and connective tissue disorders
ASTHENIA
10.1%
17/168 • Number of events 30
Musculoskeletal and connective tissue disorders
BACK PAIN
10.7%
18/168 • Number of events 34
Musculoskeletal and connective tissue disorders
BONE PAIN
9.5%
16/168 • Number of events 26
Reproductive system and breast disorders
BREAST PAIN
8.9%
15/168 • Number of events 34
General disorders
CHEST PAIN
5.4%
9/168 • Number of events 16
Gastrointestinal disorders
CONSTIPATION
35.7%
60/168 • Number of events 175
Respiratory, thoracic and mediastinal disorders
COUGH
20.8%
35/168 • Number of events 58
Metabolism and nutrition disorders
DEHYDRATION
6.0%
10/168 • Number of events 12
Psychiatric disorders
DEPRESSION
10.1%
17/168 • Number of events 40
Gastrointestinal disorders
DIARRHEA
35.7%
60/168 • Number of events 127
Nervous system disorders
DIZZINESS
13.7%
23/168 • Number of events 41
Gastrointestinal disorders
DYSPEPSIA
19.0%
32/168 • Number of events 88
Respiratory, thoracic and mediastinal disorders
DYSPNEA
15.5%
26/168 • Number of events 39
General disorders
EDEMA
8.3%
14/168 • Number of events 32
General disorders
FATIGUE
81.0%
136/168 • Number of events 547
Blood and lymphatic system disorders
FEBRILE NEUTROPENIA
7.1%
12/168 • Number of events 15
General disorders
FEVER
9.5%
16/168 • Number of events 18
Nervous system disorders
HEADACHE
22.6%
38/168 • Number of events 95
Vascular disorders
HOT FLASHES
17.9%
30/168 • Number of events 79
Metabolism and nutrition disorders
HYPERGLYCEMIA
8.3%
14/168 • Number of events 31
Vascular disorders
HYPERTENSION
7.7%
13/168 • Number of events 28
Infections and infestations
INFECTION
7.7%
13/168 • Number of events 18
Psychiatric disorders
INSOMNIA
28.6%
48/168 • Number of events 145
Blood and lymphatic system disorders
LEUKOPENIA
76.2%
128/168 • Number of events 457
Gastrointestinal disorders
MUCOSITIS
10.1%
17/168 • Number of events 31
Musculoskeletal and connective tissue disorders
MYALGIA
32.7%
55/168 • Number of events 168
Skin and subcutaneous tissue disorders
NAIL CHANGES
7.1%
12/168 • Number of events 27
Gastrointestinal disorders
NAUSEA
60.7%
102/168 • Number of events 297
Blood and lymphatic system disorders
NEUTROPENIA
75.6%
127/168 • Number of events 457
General disorders
PAIN
7.7%
13/168 • Number of events 23
Musculoskeletal and connective tissue disorders
PAIN IN EXTREMITY
23.8%
40/168 • Number of events 96
Nervous system disorders
PARESTHESIA
7.7%
13/168 • Number of events 34
Nervous system disorders
PERIPHERAL NEUROPATHY
69.6%
117/168 • Number of events 399
Skin and subcutaneous tissue disorders
PRURITUS
6.5%
11/168 • Number of events 22
General disorders
Pain
12.5%
21/168 • Number of events 37
Skin and subcutaneous tissue disorders
RASH
17.3%
29/168 • Number of events 53
Respiratory, thoracic and mediastinal disorders
SORE THROAT
6.0%
10/168 • Number of events 11
Nervous system disorders
TASTE ALTERATION
20.8%
35/168 • Number of events 122
Blood and lymphatic system disorders
THROMBOCYTOPENIA
33.3%
56/168 • Number of events 136
Respiratory, thoracic and mediastinal disorders
UPPER RESPIRATORY INFECTION
6.5%
11/168 • Number of events 16
Gastrointestinal disorders
VOMITING
19.0%
32/168 • Number of events 54
Investigations
WEIGHT LOSS
6.5%
11/168 • Number of events 22

Additional Information

John D. Hainsworth, MD

Sarah Cannon Research Institute

Phone: 1-877-691-7274

Results disclosure agreements

  • Principal investigator is a sponsor employee The sponsor can review/embargo results communications prior to public release for a period that is \>60 days but ≤180 days from the date submitted to sponsor, who may require changes to the communication in order to remove specifically identified confidential information (other than study data) and/or delay the proposed publication to enable the sponsor to seek patent protection for inventions. The PI may not publish results until 18 mos. after the trial has been completed at all sites.
  • Publication restrictions are in place

Restriction type: OTHER