A Phase 3 interventional study of Bevacizumab and Ixabepilone in Estrogen Receptor Negative, Estrogen Receptor Positive and HER2/Neu Negative, sponsored by National Cancer Institute (NCI). Completed at 704 sites in 2 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-06-23.
Sponsored by National Cancer Institute (NCI) · Phase 3, Interventional, and Treatment
This randomized phase III trial studies the side effects and how well different chemotherapy regimens with or without bevacizumab work in treating patients with stage IIIC or stage IV breast cancer. Drugs used in chemotherapy, such as paclitaxel, paclitaxel albumin-stabilized nanoparticle formulation (nab-paclitaxel), and ixabepilone, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Bevacizumab may block tumor growth by targeting certain cells and slowing the growth of blood vessels to the tumor. It is not yet known which treatment regimen is more effective in treating patients with breast cancer.
PRIMARY OBJECTIVES:
I. To compare the progression-free survival (PFS) in patients with metastatic breast cancer receiving nab-paclitaxel versus paclitaxel (control arm).
II. To compare PFS in patients receiving ixabepilone versus paclitaxel.
SECONDARY OBJECTIVES:
I. To compare the objective response rate, duration of response, and time to treatment failure in patients receiving nab-paclitaxel versus paclitaxel, and to separately compare these endpoints in patients receiving ixabepilone versus paclitaxel.
II. To compare the 12-month rate of progression in patients receiving nab-paclitaxel versus paclitaxel, and to separately compare this endpoint in patients receiving ixabepilone versus paclitaxel.
III. To determine toxicities in patients receiving nab-paclitaxel as compared to paclitaxel, and in patients receiving ixabepilone as compared to paclitaxel.
IV. To compare overall survival in patients receiving nab-paclitaxel versus paclitaxel, and to separately compare overall survival in patients receiving ixabepilone versus paclitaxel.
V. To evaluate the relationships between secreted protein, acidic, cysteine-rich (SPARC) overexpression and changes in blood levels of caveolin-1 (Cav-1) to PFS and secondary endpoints of response during treatment with nab-paclitaxel as compared to paclitaxel, and with ixabepilone as compared to paclitaxel.
VI. To evaluate the relationships between changes in blood levels of circulating tumor cells (CTCs) and circulating endothelial cells (CECs) to PFS and secondary endpoints of response during treatment with nab-paclitaxel as compared to paclitaxel, and with ixabepilone as compared to paclitaxel.
VII. To evaluate the association of expression levels of the microtubule associated proteins tau and beta-tubulin isotype composition with PFS and secondary endpoints of response during treatment with nab-paclitaxel as compared to paclitaxel, and with ixabepilone as compared to paclitaxel.
VIII. To investigate a potential cytochrome P450, family 2, subfamily C polypeptide 8, 2, 3 (CYP2C8*2/*3) by paclitaxel interaction with respect to progression-free survival (PFS).
IX. To determine if CYP2C8*2 and CPY2C8*3 are associated with paclitaxel-induced peripheral neuropathy.
X. To perform exploratory analysis of cytochrome P450, family 3, subfamily A, polypeptide 4 (CYP3A4), cytochrome P450, family 3, subfamily A, polypeptide 5 (CYP3A5), ATP-binding cassette, sub-family B (MDR/TAP), member 1 (ABCB1) and ATP-binding cassette, sub-family C (CFTR/MRP), member 2 (ABCC2) polymorphisms with response and toxicity profiles.
XI. To prospectively collect data on sociodemographics, non-cancer morbidities, and receipt of post-trial therapy to evaluate the role of potential disparities on survival from cancer.
XII. To evaluate the relationship between physical activity behaviors at the time of enrollment in the protocol and progression-free and overall survival.
XIII. To identify baseline factors that predict the risk of grade 3, 4, or 5 toxicity in patients receiving treatment with weekly paclitaxel, nab-paclitaxel, or ixabepilone combined with or without bevacizumab.
XIV. To perform an exploratory analysis of whether other factors included in patient assessments (either individually or in combination) predict the risk of grade 3, 4, or 5 toxicity in patients receiving weekly paclitaxel, nab-paclitaxel, or ixabepilone combined with or without bevacizumab, with a specific focus on the relationship between pre-existing hypertension or neuropathy.
XV. To compare the associations of baseline factors to grade 3, 4, or 5 toxicity in patients receiving weekly paclitaxel, nab-paclitaxel, or ixabepilone combined with or without bevacizumab.
XVI. To explore whether longitudinal changes in factors are in association with the occurrence of grade 3, 4, or 5 toxicities in patients with weekly paclitaxel, nab-paclitaxel, or ixabepilone combined with or without bevacizumab.
XVII. To explore the association between grade 2-4 neuropathy and longitudinal changes in the following functional status measures: a) Older Americans Resources and Services (OARS) Multidimensional Functional Assessment Questionnaire (MFAQ) (Instrumental Activities of Daily Living [IADL]); b) Medical Outcomes Study (MOS) Physical Functioning; c) Karnofsky Performance Status Rated Healthcare Professional; d) Timed "Up and Go"; e) OARS Physical Health Section.
OUTLINE: Patients are randomized to 1 of 3 treatment arms.
ARM A (WEEKLY PACLITAXEL): Patients receive paclitaxel intravenously (IV) over 1 hour on days 1, 8, and 15. Patients may also receive bevacizumab IV over 30-90 minutes on days 1 and 15.
ARM B (WEEKLY NAB-PACLITAXEL): Patients receive paclitaxel albumin-stabilized nanoparticle formulation IV over 30 minutes on days 1, 8, and 15. Patients may also receive bevacizumab as in Arm A.
ARM C (WEEKLY IXABEPILONE): Patients receive ixabepilone IV over 60 minutes on days 1, 8, and 15. Patients may also receive bevacizumab as in Arm A. (closed to accrual as of 7/18/11)
In all arms, treatment repeats every 28 days in the absence of disease progression or unacceptable toxicity.
After completion of study therapy, patients are followed every 6 months for 2 years and then annually for up to 3 years.
12,544 studies on the registry are indexed under Breast Neoplasms; 2,892 are open to participants now.
This study's enrollment of 799 is above the median of 72 across 9,303 interventional studies indexed under Breast Neoplasms.
Browse Breast Neoplasms studies →National Cancer Institute (NCI) is the lead sponsor of 3,506 studies on the registry; 334 are open to participants now.
Of its 402 completed or terminated interventional studies of FDA-regulated products, 365 (91%) have results posted.
Counted across the registry records on this site, refreshed daily.
Inclusion Criteria:
Patients must not have had a major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to study registration, and must have fully recovered from any such procedure
There are no restrictions on core biopsies, placement of a vascular access device or other minor procedures prior to registration
Patients must have measurable disease (target lesions): measurable disease is defined as at least one lesion that can be accurately measured in at least one dimension (longest diameter to be recorded) as >= 2.0 cm with conventional techniques or as >= 1 cm with spiral computed tomography (CT) scan
Lesions that are considered non-measurable include the following:
Patients must not have a history of clinically significant cardiovascular disease that includes the following:
Urine protein =\< 1+ protein* or urine protein: creatinine ratio (UPC) \< 1
Patients receive 90 mg/m\^2 paclitaxel IV over 1 hour on days 1, 8, and 15. Patients may receive 10 mg/kg bevacizumab IV over 30-90 minutes on days 1 and 15.
Biological: Bevacizumab · Other: Laboratory Biomarker Analysis · Drug: Paclitaxel · Other: Questionnaire Administration
Patients receive paclitaxel albumin-stabilized nanoparticle formulation IV over 30 minutes on days 1, 8, and 15. Patients may also receive 10 mg/kg bevacizumab IV over 30-90 minutes on days 1 and 15.
Biological: Bevacizumab · Other: Laboratory Biomarker Analysis · Drug: Nab-paclitaxel · Other: Questionnaire Administration
Patients receive ixabepilone IV over 60 minutes on days 1, 8, and 15. Patients may also receive 10 mg/kg bevacizumab IV over 30-90 minutes on days 1 and 15. (closed to accrual as of 7/18/11)
Biological: Bevacizumab · Drug: Ixabepilone · Other: Laboratory Biomarker Analysis · Other: Questionnaire Administration
Given IV
Also known as: ABP 215, Anti-VEGF, Anti-VEGF Humanized Monoclonal Antibody, Anti-VEGF Monoclonal Antibody SIBP04, Anti-VEGF rhuMAb, Avastin, Bevacizumab awwb, Bevacizumab Biosimilar ABP 215, Bevacizumab Biosimilar BEVZ92, Bevacizumab Biosimilar BI 695502, Bevacizumab Biosimilar CBT 124, Bevacizumab Biosimilar CT-P16, Bevacizumab Biosimilar FKB238, Bevacizumab Biosimilar GB-222, Bevacizumab Biosimilar HD204, Bevacizumab Biosimilar HLX04, Bevacizumab Biosimilar IBI305, Bevacizumab Biosimilar LY01008, Bevacizumab Biosimilar MIL60, Bevacizumab Biosimilar Mvasi, Bevacizumab Biosimilar MYL-1402O, Bevacizumab Biosimilar QL 1101, Bevacizumab Biosimilar RPH-001, Bevacizumab Biosimilar SCT501, Bevacizumab Biosimilar Zirabev, Bevacizumab-awwb, Bevacizumab-bvzr, BP102, BP102 Biosimilar, HD204, Immunoglobulin G1 (Human-Mouse Monoclonal rhuMab-VEGF Gamma-Chain Anti-Human Vascular Endothelial Growth Factor), Disulfide With Human-Mouse Monoclonal rhuMab-VEGF Light Chain, Dimer, Mvasi, MYL-1402O, Recombinant Humanized Anti-VEGF Monoclonal Antibody, rhuMab-VEGF, SCT501, SIBP 04, SIBP-04, SIBP04, Zirabev
Given IV
Also known as: (1S,3S,7S,10R,11S,12S,16R)-7,11-Dihydroxy-8,8,10,12,16-pentamethyl-3-[(1E)-1-methyl-2-(2-methyl-4-thiazolyl)ethenyl]-17-oxa-4-azabicyclo[14.1.0]heptadecane-5,9-dione, Azaepothilone B, BMS 247550, BMS-247550, BMS247550, Epothilone, Epothilone-B BMS 247550, Ixempra
Correlative studies
Given IV
Also known as: ABI 007, ABI-007, Abraxane, Albumin-bound Paclitaxel, Albumin-Stabilized Nanoparticle Paclitaxel, Nanoparticle Albumin-bound Paclitaxel, Nanoparticle Paclitaxel, Paclitaxel Albumin, paclitaxel albumin-stabilized nanoparticle formulation, Protein-bound Paclitaxel
Given IV
Also known as: Anzatax, Asotax, Bristaxol, Praxel, Taxol, Taxol Konzentrat
Ancillary studies
Progression Free Survival
Progression-free survival (PFS) is defined as the interval from registration until first disease progression, regardless of site, or death resulting from any cause, which ever occurred first. Distribution was estimated using the Kaplan Meier product-limit method. Progression is defined as a 20% increase in the sum of longest diameter of target lesions (per Response Evaluation Criteria in Solid Tumors \[RECIST\] criteria).
Time frame: Time from randomization to progression or death due to any cause, whichever occurs first (up to 5 years)
Objective Tumor Response Rate
Response was defined by the Response Evaluation Criteria in Solid Tumors (RECIST). A responding participant had either a Complete Response (disappearance of all target lesions) or Partial Response (30% decrease in sum of longest diameter of target lesions).
Time frame: Up to 5 years
Time to Treatment Failure
Time from registration until treatment failure, defined as early termination of protocol therapy for any reason, first disease progression or death without progression. Surviving participants who were failure free were censored as date last known alive and failure free. Distribution was estimated using the Kaplan Meier product-limit method.
Time frame: Time from randomization until progression, death, or yearly termination of protocol therapy (up to 5 years)
12 Month Progression Free Survival
Percentage of participants who were alive and progression free at 12 months. The 12 month progression free survival, with 95% confidence interval, was estimated using the Kaplan Meier method.
Time frame: 12 months
Overall Survival
Overall survival was measured as the interval from study entry until death, from any cause, or last contact. Distribution was estimated using the Kaplan Meier product-limit method.
Time frame: Time from randomization to death or last follow-up (up to 5 years)
Between October 2008 - November 2011, a total of 799 participants were recruited.
| Milestone | Arm A (Paclitaxel) | Arm B (Nab-paclitaxel) | Arm C (Ixabepilone) |
|---|---|---|---|
| Started | 283 | 271 | 245 |
| Completed | 147 | 122 | 139 |
| Not completed | 136 | 149 | 106 |
| Withdrew: Never began treatment | 8 | 4 | 4 |
| Withdrew: Adverse event | 39 | 70 | 56 |
| Withdrew: Death | 7 | 4 | 3 |
| Withdrew: Withdrawal by subject | 35 | 36 | 17 |
| Withdrew: Alternative therapy | 12 | 6 | 7 |
| Withdrew: Complicating illness | 6 | 4 | 4 |
| Withdrew: Other medical reasons | 29 | 25 | 15 |
Progression-free survival (PFS) is defined as the interval from registration until first disease progression, regardless of site, or death resulting from any cause, which ever occurred first. Distribution was estimated using the Kaplan Meier product-limit method. Progression is defined as a 20% increase in the sum of longest diameter of target lesions (per Response Evaluation Criteria in Solid Tumors \[RECIST\] criteria).
| months | Arm A (Paclitaxel) | Arm B (Nab-paclitaxel) | Arm C (Ixabepilone) |
|---|---|---|---|
| Progression Free Survival | 10.97 (9.79 to 12.42) | 9.3 (8.15 to 10.45) | 7.36 (6.21 to 8.18) |
Response was defined by the Response Evaluation Criteria in Solid Tumors (RECIST). A responding participant had either a Complete Response (disappearance of all target lesions) or Partial Response (30% decrease in sum of longest diameter of target lesions).
| percentage of participants | Arm A (Paclitaxel) | Arm B (Nab-paclitaxel) | Arm C (Ixabepilone) |
|---|---|---|---|
| Objective Tumor Response Rate | 38.2 | 34.1 | 25.6 |
Time from registration until treatment failure, defined as early termination of protocol therapy for any reason, first disease progression or death without progression. Surviving participants who were failure free were censored as date last known alive and failure free. Distribution was estimated using the Kaplan Meier product-limit method.
| months | Arm A (Paclitaxel) | Arm B (Nab-paclitaxel) | Arm C (Ixabepilone) |
|---|---|---|---|
| Time to Treatment Failure | 6.6 (5.62 to 7.2) | 5.19 (4.83 to 5.55) | 4.93 (4.21 to 5.29) |
Percentage of participants who were alive and progression free at 12 months. The 12 month progression free survival, with 95% confidence interval, was estimated using the Kaplan Meier method.
| percentage of participants | Arm A (Paclitaxel) | Arm B (Nab-paclitaxel) | Arm C (Ixabepilone) |
|---|---|---|---|
| 12 Month Progression Free Survival | 45 (39 to 51) | 36 (30 to 42) | 28 (23 to 35) |
Overall survival was measured as the interval from study entry until death, from any cause, or last contact. Distribution was estimated using the Kaplan Meier product-limit method.
| months | Arm A (Paclitaxel) | Arm B (Nab-paclitaxel) | Arm C (Ixabepilone) |
|---|---|---|---|
| Overall Survival | 26.55 (23.8 to 32.9) | 23.52 (20.4 to 28.2) | 23.53 (19.9 to 25.6) |
Non-serious events are listed at a 0% frequency threshold.
| Group | Deaths | Serious | Other |
|---|---|---|---|
| Arm A (Paclitaxel) | — | 65/272 (23.9%) | 263/272 (96.7%) |
| Arm B (Nab-paclitaxel) | — | 80/264 (30.3%) | 248/264 (93.9%) |
| Arm C (Ixabepilone) | — | 59/238 (24.8%) | 230/238 (96.6%) |
| Event | Arm A (Paclitaxel) | Arm B (Nab-paclitaxel) | Arm C (Ixabepilone) |
|---|---|---|---|
| FatigueGeneral disorders | 43/272 | 56/264 | 40/238 |
| Peripheral sensory neuropathyNervous system disorders | 35/272 | 43/264 | 32/238 |
| Neutrophil count decreasedInvestigations | 16/272 | 36/264 | 14/238 |
| NauseaGastrointestinal disorders | 6/272 | 19/264 | 21/238 |
| HypertensionVascular disorders | 15/272 | 17/264 | 17/238 |
| Hemoglobin decreasedBlood and lymphatic system disorders | 14/272 | 18/264 | 12/238 |
| Leukocyte count decreasedInvestigations | 7/272 | 17/264 | 7/238 |
| VomitingGastrointestinal disorders | 6/272 | 12/264 | 15/238 |
| DyspneaRespiratory, thoracic and mediastinal disorders | 12/272 | 13/264 | 15/238 |
| Platelet count decreasedInvestigations | 3/272 | 13/264 | 10/238 |
| Event | Arm A (Paclitaxel) | Arm B (Nab-paclitaxel) | Arm C (Ixabepilone) |
|---|---|---|---|
| FatigueGeneral disorders | 208/272 | 213/264 | 205/238 |
| Peripheral sensory neuropathyNervous system disorders | 216/272 | 206/264 | 175/238 |
| Neutrophil count decreasedInvestigations | 116/272 | 178/264 | 64/238 |
| HypertensionVascular disorders | 127/272 | 97/264 | 90/238 |
| MyalgiaMusculoskeletal and connective tissue disorders | 92/272 | 99/264 | 77/238 |
| Leukocyte count decreasedInvestigations | 55/272 | 87/264 | 41/238 |
| NauseaGastrointestinal disorders | 48/272 | 52/264 | 75/238 |
| Peripheral motor neuropathyNervous system disorders | 46/272 | 66/264 | 47/238 |
| EpistaxisRespiratory, thoracic and mediastinal disorders | 68/272 | 56/264 | 47/238 |
| ProteinuriaRenal and urinary disorders | 58/272 | 64/264 | 50/238 |
All randomized participants are included in baseline characteristics.
| Age, Customized(participants) | Arm A (Paclitaxel) | Arm B (Nab-paclitaxel) | Arm C (Ixabepilone) | Total |
|---|---|---|---|---|
| 20-29 | 2 | 2 | 1 | 5 |
| 30-39 | 15 | 18 | 17 | 50 |
| 40-49 | 52 | 56 | 55 | 163 |
| 50-59 | 109 | 89 | 86 | 284 |
| 60-69 | 74 | 74 | 68 | 216 |
| 70-79 | 24 | 28 | 15 | 67 |
| 80+ | 7 | 4 | 3 | 14 |
| Sex: Female, Male(Participants) | Arm A (Paclitaxel) | Arm B (Nab-paclitaxel) | Arm C (Ixabepilone) | Total |
|---|---|---|---|---|
| Female | 277 | 268 | 243 | 788 |
| Male | 6 | 3 | 2 | 11 |
| Ethnicity (NIH/OMB)(Participants) | Arm A (Paclitaxel) | Arm B (Nab-paclitaxel) | Arm C (Ixabepilone) | Total |
|---|---|---|---|---|
| Hispanic or Latino | 19 | 15 | 13 | 47 |
| Not Hispanic or Latino | 252 | 239 | 221 | 712 |
| Unknown or Not Reported | 12 | 17 | 11 | 40 |
| Race (NIH/OMB)(Participants) | Arm A (Paclitaxel) | Arm B (Nab-paclitaxel) | Arm C (Ixabepilone) | Total |
|---|---|---|---|---|
| American Indian or Alaska Native | 2 | 1 | 2 | 5 |
| Asian | 0 | 0 | 0 | 0 |
| Native Hawaiian or Other Pacific Islander | 3 | 0 | 1 | 4 |
| Black or African American | 42 | 45 | 26 | 113 |
| White | 220 | 214 | 206 | 640 |
| More than one race | 1 | 1 | 2 | 4 |
| Unknown or Not Reported | 15 | 10 | 8 | 33 |
| Region of Enrollment(participants) | Arm A (Paclitaxel) | Arm B (Nab-paclitaxel) | Arm C (Ixabepilone) | Total |
|---|---|---|---|---|
| United States | 283 | 271 | 245 | 799 |
| Prior Adjuvant Taxane(participants) | Arm A (Paclitaxel) | Arm B (Nab-paclitaxel) | Arm C (Ixabepilone) | Total |
|---|---|---|---|---|
| Yes | 125 | 120 | 107 | 352 |
| No | 158 | 151 | 138 | 447 |
| Hormone Receptor Status(participants) | Arm A (Paclitaxel) | Arm B (Nab-paclitaxel) | Arm C (Ixabepilone) | Total |
|---|---|---|---|---|
| ER/PgR Positive | 201 | 195 | 178 | 574 |
| ER/PgR Negative | 82 | 76 | 67 | 225 |
| Physician's Decision to use Bevacizumab(participants) | Arm A (Paclitaxel) | Arm B (Nab-paclitaxel) | Arm C (Ixabepilone) | Total |
|---|---|---|---|---|
| Bevacizumab planned | 51 | 44 | 15 | 110 |
| Bevacizumab not planned | 8 | 4 | 8 | 20 |
| Bevacizumab required | 224 | 223 | 222 | 669 |
Showing the first 100 of 704 sites across 2 countries.
This study is completed, as verified in May 2026. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
National Cancer Institute (NCI)