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Estrogen Receptor-positive Breast CancerPhase 2NCT01394211

Neo-adjuvant Therapy With Anastrozole Plus Pazopanib in Stage II and III ER+ Breast Cancer

A Phase 2 study testing anastrozole, pazopanib hydrochloride and therapeutic conventional surgery in people with Estrogen Receptor-positive Breast Cancer and Human Epidermal Growth Factor 2 Negative Carcinoma of Breast, run by University of Arizona at 1 site in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

This phase II trial studies how well giving pazopanib hydrochloride and anastrozole before surgery works in treating patients with stage II-III estrogen receptor-positive breast cancer. Pazopanib hydrochloride and anastrozole may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
anastrozole, pazopanib hydrochloride and therapeutic conventional surgery
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
2 participants
Where
1 siteUnited States
Study dates
13 Jul 2011to 12 Apr 2012
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Subjects must provide written informed consent prior to performance of study-specific procedures or assessments, and must be willing to comply with treatment and follow-up; procedures conducted as part of the subject's routine clinical management (e.g., blood count, imaging study) and obtained prior to signing of informed consent may be utilized for screening or baseline purposes provided these procedures are within the protocol determined screening or baseline timeframes, and equivalent to the specifications in the protocol; also note, a written waiver/approval from the Investigator/Sponsor is still required
  • Histologically confirmed diagnosis of estrogen receptor-positive (ER+), HER2 negative breast cancer, with clinical stage II or III disease
  • Stage IIA T0-1 N1 M0, T2 N0 M0, OR
  • Stage IIB T2 N1 M0, T3 N0 M0 OR
  • Stage IIIA T0-2 N2 M0, T3 N1-2 M0, OR
  • Stage IIIB T4 N0-2 M0
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  • Eastern Cooperative Oncology Group (ECOG) performance status of 0-2
  • No evidence of distant metastatic disease
  • Baseline Oncotype DX score of 29 or lower; patients with known Oncotype DX recurrence score (RS) of 30 or greater are not eligible
  • Absolute neutrophil count (ANC) >= 1.5 x 10^9/L
  • Hemoglobina >= 10 g/dL (5.6 mmol/L); subjects may not have had a transfusion within 7 days of screening assessment
  • Platelets >= 100 x 10^9/L
  • Prothrombin time (PT) or international normalized ratio (INR) =< 1.2 x upper limit of normal (ULN); subjects receiving anticoagulant therapy are eligible if their INR is stable and within the recommended range for the desired level of anticoagulation
  • Activated partial thromboplastin time (aPTT) =< 1.2 x ULN
  • Total bilirubin =< 1.5 x ULN
  • Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) =< 2.5 x ULN; concomitant elevations in bilirubin and AST/ALT above 1.0 x ULN is not permitted
  • Serum creatinine =< 1.5 mg/dL (133 umol/L) or, if > 1.5 mg/dL: calculated creatinine clearance (CLCR) >= 50 mL/min
  • Urine protein to creatinine ratio (UPC) < 1; if UPC >= 1, then a 24-hour urine protein must be assessed; subjects must have a 24-hour urine protein value < 1 g to be eligible
  • A female is eligible to enter and participate in this study if she is:
  • Is post-menopausal
  • Subjects not using hormone replacement therapy (HRT) must have experienced total cessation of menses for >= 1 year and be greater than 45 years in age, OR, in questionable cases, have follicle stimulating hormone (FSH) value > 40 mIU/mL and an estradiol value < 40 pg/mL (< 140 pmol/L)
  • Subjects using HRT must have experienced total cessation of menses for >= 1 year and be greater than 45 years of age OR have had documented evidence of menopause based on FSH and estradiol concentrations prior to initiation of HRT; patients will be required to be off of HRT for at least 2 weeks prior to initiating therapy

Who cannot join

  • Prior malignancy; note: subjects who have had another malignancy and have been disease-free for >= 5 years, or subjects with a history of completely resected non-melanomatous skin carcinoma or successfully treated in situ carcinoma are eligible
  • Known distant metastases at any site; history or clinical evidence of central nervous system (CNS) metastases or leptomeningeal carcinomatosis
  • Clinically significant gastrointestinal abnormalities that may increase the risk for gastrointestinal bleeding including, but not limited to:
  • Active peptic ulcer disease
  • Known intraluminal metastatic lesion/s with risk of bleeding
  • Inflammatory bowel disease (e.g. ulcerative colitis, Crohn's disease), or
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  • Other gastrointestinal conditions with increased risk of perforation
  • History of abdominal fistula, gastrointestinal perforation, or intra-abdominal abscess within 28 days of registration to the study; clinically significant gastrointestinal abnormalities that may affect absorption of investigational product including, but not limited to:
  • Malabsorption syndrome
  • Major resection of the stomach or small bowel
  • Presence of uncontrolled infection
  • Corrected QT interval (QTc) > 480 msecs using Bazett's formula
  • History of any one or more of the following cardiovascular conditions within 6 months of registration on the study:
  • Cardiac angioplasty or stenting
  • Myocardial infarction
  • Unstable angina
  • Coronary artery bypass graft surgery
  • Symptomatic peripheral vascular disease
  • Class III or IV congestive heart failure, as defined by the New York Heart Association (NYHA)
  • Poorly controlled hypertension [defined as systolic blood pressure (SBP) of >= 140 mmHg or diastolic blood pressure (DBP) of >= 90 mm Hg]; note: initiation of adjustment of antihypertensive medication(s) is permitted prior to study entry
  • History of cerebrovascular accident including transient ischemic attack (TIA), pulmonary embolism or untreated deep venous thrombosis (DVT) within the past 6 months of registration on the study; note: subjects with recent DVT who have been treated with therapeutic anti-coagulating agents for at least 6 weeks of registration to the study are eligible
  • Prior major surgery or trauma within 28 days of registration on the study prior to first dose of study drug and/or presence of any non-healing wound, fracture, or ulcer (procedures such as catheter placement not considered to be major)
  • Evidence of active bleeding or bleeding diathesis
  • Hemoptysis within 8 weeks of registration to the study
  • Any serious and/or unstable pre-existing medical, psychiatric, or other condition that could interfere with subject's safety, provision of informed consent, or compliance to study procedures
  • Treatment with any of the following anti-cancer therapies for the current diagnosis of stage 2-3 estrogen positive breast carcinoma:
  • Radiation therapy, surgery or tumor embolization within 14 days prior to first dose of pazopanib OR
  • Chemotherapy, immunotherapy, biologic therapy, investigational therapy or hormonal therapy within 14 days or five half-lives of a drug (whichever is longer) prior to the first dose of pazopanib
  • Any ongoing toxicity from prior anti-cancer therapy that is > Grade 1 and/or that is progressing in severity, except alopecia
  • Concomitant anti-cancer therapies are not permitted
  • Patients may not be receiving any other investigational agents
  • History of allergic reactions attributed to compounds of similar chemical or biologic composition to Pazopanib or Anastrozole used in the study
  • Concomitant use of medications or substances that are inhibitors or inducers of strong CYP3A4 inhibitors are ineligible
  • Concomitant: the concomitant use of strong CYP3A4 inhibitors (e.g. ketoconazole, ritonavir, clarithromycin) may increase pazopanib concentrations and should be avoided; if coadministration of a strong CYP3A4 inhibitor is warranted, reduce the dose of pazopanib to 400 mg; further dose reductions may be needed if adverse effects occur during therapy; this dose is predicted to adjust the pazopanib AUC to the range observed without inhibitors; however, there are no clinical data with this dose adjustment in patients receiving strong CYP3A4 inhibitors; grapefruit juice should be avoided as it inhibits CYP3A4 activity and may also increase plasma concentrations of pazopanib
  • Concomitant strong CYP3A4 inducer: the concomitant use of strong CYP3A4 inducers (e.g. rifampin) may decrease pazopanib concentrations and should be avoided

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Arizona Cancer Center

    Tucson, Arizona, 85724-5024

Other trials in United States

About this study

This phase II trial studies how well giving pazopanib hydrochloride and anastrozole before surgery works in treating patients with stage II-III estrogen receptor-positive breast cancer. Pazopanib hydrochloride and anastrozole may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Giving pazopanib hydrochloride and anastrozole together before surgery may make the tumor smaller and reduce the amount of normal cells that have to be removed

Read the detailed description

OBJECTIVES:

  1. To determine the pathologic complete response (pCR) rate at surgery.

SECONDARY OBJECTIVES:

  1. To evaluate alternative measurements of anti-tumor activity: proportion of patients achieving sustained decrease in antigen KI-67 (ki-67) at 12 weeks of therapy with anastrozole plus pazopanib (pazopanib hydrochloride); proportion of patients achieving down-staging to a pathologic stage 0 or 1 at surgery.

II. To assess qualitative and quantitative toxicity of this combination, with special emphasis on the frequency of events grade 3 or greater, or the occurrence of unexpected toxicities.

OUTLINE:

Patients receive pazopanib hydrochloride* orally (PO) once daily (QD) and anastrozole PO QD for 6 months in the absence of disease progression or unacceptable toxicity. Patients then undergo definitive surgery.

NOTE: *Pazopanib hydrochloride is stopped 7-14 days before surgery.

Being tested
anastrozole, pazopanib hydrochloride, therapeutic conventional surgery
Medical subject headings
Breast Neoplasms, Male, Breast Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT01394211
Study groupRoleWhat they receive
Neoadjuvant enzyme inhibitor therapyExperimentalPatients receive pazopanib hydrochloride* PO QD and anastrozole PO QD for 6 months in the absence of disease progression or unacceptable toxicity. Patients then undergo therapeutic conventional surgery. NOTE: *Pazopanib hydrochloride is stopped 7-14 days before definitive surgery.
Receives: Drug: anastrozole; Drug: pazopanib hydrochloride; Procedure: therapeutic conventional surgery

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Rate of pCR at Primary Site (T0) and Nodal Sites (T0N0)

    Defined as no evidence of microscopic invasive tumor present. Determined by pathology. Estimated with an exact 95% confidence interval.

    Measured: Six months from the initiation of neoadjuvant therapy

Secondary outcomes (2)
  1. Proportion of Patients Achieving Sustained Decrease in Ki-67

    Measured: 12 weeks from the initiation of neoadjuvant therapy

  2. Proportion of Patients Achieving Down-staging to a Pathologic Stage 0 or 1

    Measured: Six months from the initiation of neoadjuvant therapy

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted14 Jul 2011 (estimated)
  2. Study start13 Jul 2011
  3. Primary completion12 Apr 2012
  4. Study completion12 Apr 2012

Why it stopped: Slow accrual

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
2 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01394211
Sponsor's protocol ID
11-0269-04
Other IDs
NCI-2011-01114, 3P30CA023074
Status last verified
Jul 2018
First submitted
28 Jun 2011
Last updated
26 Jul 2018
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing anastrozole, pazopanib hydrochloride and therapeutic conventional surgery in people with Estrogen Receptor-positive Breast Cancer and Human Epidermal Growth Factor 2 Negative Carcinoma of Breast, run by University of Arizona at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 22 inclusion and 35 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 26 Jul 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 26 Jul 2018). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Rate of pCR at Primary Site (T0) and Nodal Sites (T0N0) (time frame: Six months from the initiation of neoadjuvant therapy). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 26 Jul 2018.

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