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Breast CancerPhase 2NCT00481845

Phase 2 Anastrozole and Vandetanib (ZD6474) in Neoadjuvant Treatment of Postmenopausal Hormone Receptor-Positive Breast Cancer

A Phase 2 study testing Vandetanib and Anastrozole in people with Breast Cancer, run by Stanford University 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

In this study we plan to study the combination of ZD6474, a dual inhibitor of EGFR and VEGFR-2 with anastrozole in the neoadjuvant setting for patients with Stage I-III breast cancer. Read more about this study

Who is it for?
Ages 18 years and older, women only
Conditions the study is for
Breast Cancer
What is being tested?
Vandetanib and Anastrozole
Could I receive a placebo?
No, everyone receives an active treatment
How many people
1 participants
Where
1 siteUnited States
Study dates
Jan 2008to Dec 2009
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
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Histologically confirmed invasive, hormone receptor-positive (ER and/or PR positive) breast cancer
  • Stage I-III breast cancer including any primary tumor ≥ 1 cm by ultrasound
  • Diagnosis by core needle biopsy with placement of metallic clip at tumor site
  • Sentinel lymph node biopsy (US-guided FNA may be substituted if palpable axillary lymphadenopathy)
  • Evaluation by a surgeon to determine eligibility for breast conservation
  • Postmenopausal status (age ≥ 60 yo; or < 60 yo and FSH and estradiol in the postmenopausal range, prior bilateral oophorectomy)
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  • Serum creatinine < 1.5 x upper limit of normal (ULN) or creatinine clearance > 50 mL/minute (calculated by Cockcroft-Gault formula.)
  • Serum bilirubin < 1.5 x ULN
  • Serum potassium ≥ 4 mmol/L (supplementation allowed)
  • Serum calcium or magnesium within normal range (supplementation allowed)
  • Alanine aminotransferase (ALT) or aspartate aminotransferase (AST) ≤ 2.5 x ULN or alkaline phosphatase (ALP) ≤ 2.5 x ULN
  • ECOG Performance Status 0,1,2
  • ECG QTc < 480 msec
  • Measurable disease
  • Written, informed consent

Who cannot join

  • Metastatic breast cancer excluding disease in regional lymph nodes
  • Inoperable disease considered irreversible with neoadjuvant endocrine therapy
  • HER2-overexpressed breast cancer
  • Prior chemotherapy or radiotherapy for the treatment of the current breast cancer
  • Prior hormonal therapy for the treatment of the current breast cancer
  • Prior surgical biopsy, lumpectomy, mastectomy for the current breast cancer
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  • Any concurrent condition which in the Investigator's opinion makes it inappropriate for the patient to participate in the trial or which would jeopardize compliance with the protocol
  • Currently active diarrhea that may affect the ability of the patient to absorb ZD6474 or tolerate diarrhea
  • Clinically significant cardiac event such as myocardial infarction; New York Heart Association (NYHA) classification of heart disease >2 within 3 months before entry; or presence of cardiac disease that, in the opinion of the Investigator, increases the risk of ventricular arrhythmia.
  • History of arrhythmia (multifocal premature ventricular contractions (PVCs), bigeminy, trigeminy, ventricular tachycardia (VT) or uncontrolled atrial fibrillation) which is symptomatic or requires treatment (CTCAE grade 3) or asymptomatic sustained VT. Atrial fibrillation controlled on medication is not excluded.
  • Previous history of QTc prolongation as a result of another medication that required discontinuation of that medication.
  • Congenital long QT syndrome or 1st degree relative with unexplained sudden death < 40 years of age.
  • Presence of left bundle branch block (LBBB).
  • QTc with Bazett's correction that is unmeasurable, or ≥ 480 msec on screening ECG. If a patient has QTc ≥ 480 msec on screening ECG, the screen ECG may be repeated twice (at least 24 hours apart). The average QTc from the three screening ECGs must be < 480 msec in order for the patient to be eligible for the study.
  • Use of any concomitant medication that may cause QTc prolongation, induce Torsades de Pointes or induce CYP3A4 function.
  • Hypertension not controlled by medical therapy (systolic blood pressure greater than 160 mm Hg or diastolic blood pressure greater than 100 mm hg).
  • Previous or current malignancies of other histologies within the last 5 years, with the exception of cervical carcinoma in situ and adequately treated basal cell or squamous cell carcinoma of the skin.
  • Major surgery within 4 weeks or incompletely healed surgical incision before starting study therapy.
  • Receipt of any investigational agents within 30 days prior to commencing study treatment
  • Previous enrollment or randomization of treatment in the present study

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Stanford University School of Medicine

    Stanford, California, 94305

Other trials in United States

About this study

Official title: Randomized Phase 2 Trial of Anastrozole Combined With Novel Agent ZD6474 in the Neoadjuvant Treatment of Postmenopausal Patients With Hormone Receptor-Positive Breast Cancer

In this study we plan to study the combination of ZD6474, a dual inhibitor of EGFR and VEGFR-2 with anastrozole in the neoadjuvant setting for patients with Stage I-III breast cancer. The aim is to overcome mechanisms of resistance and simultaneously block multiple critical signaling pathways known to stimulate breast cancer.

Read the detailed description

The use of adjuvant chemotherapy and endocrine therapy has had a significant impact on breast cancer survival. However, not all patients will benefit from each of these therapies. Increasing data suggests that patients with hormone receptor-positive breast cancer derive marginal benefit from the addition of adjuvant chemotherapy. Identification and characterization of cellular signaling pathways active in the pathogenesis of breast cancer has lead to the development of multiple targeted therapies that hold enormous promise for patients with less toxicity than conventional chemotherapy. Treatment strategies employing neoadjuvant therapy have found that pCR is predictive for ultimate outcome. Due to this, the use of neoadjuvant therapy has become an intense area of investigation in operable breast cancer. In the IMPACT trial, the aromatase inhibitor anastrozole was found to improve eligibility for breast conservation and was associated with a favorable clinical objective response after 12 weeks of therapy.

In this proposed study, we plan to study the combination of ZD6474, a dual inhibitor of EGFR and VEGFR-2, with anastrozole in the neoadjuvant setting for patients with Stage I-III breast cancer. The aim is to overcome mechanisms of resistance and simultaneously block multiple critical signaling pathways known to stimulate breast cancer. The two agents have non-overlapping toxicities and are both administered orally, allowing for a more tolerable treatment regimen. By using this combination in the neoadjuvant setting, we will target the critical signaling pathways early and follow tumor responses during therapy, allowing for prompt evaluation of the effectiveness of this treatment strategy. Pathologic tumor specimens obtained at the time of definitive surgery will be evaluated for pathologic complete response thus adding to the body of literature. By examining molecular markers such as ER, PR, EGFR, and Ki-67 pre- and post-treatment, we hope to correlate modulations in these biomarkers to response. Finally, using a novel second generation functional breast MRI we will investigate the ability of MRI to predict response to antiangiogenic therapy.

Conditions
Breast Cancer
Being tested
Vandetanib, Anastrozole
Medical subject headings
Breast Neoplasms

What participants receive

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

  • VandetanibDrug

    Also called Zactima, ZD6474

    300 mg daily

  • AnastrozoleDrug

    Also called Arimidex

    1 mg daily

Study groups in NCT00481845
Study groupRoleWhat they receive
Vandetanib + AnastrozoleExperimentalVandetanib and Anastrozole as neoadjuvant therapy
Receives: Drug: Vandetanib; Drug: Anastrozole
AnastrozoleActive comparatorAnastrozole as neoadjuvant therapy
Receives: Drug: Anastrozole

What is being measured

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

  1. Tumor Objective Response by MRI

    Determine tumor objective response rate by MRI. (CR): Disappearance of the target lesion (PR): At least a 30% decrease in the longest diameter of the target lesion taking as reference the baseline LD (PD): At least a 20% increase in the LD of target lesion, taking as reference the baseline LD or the appearance of one or more new lesions (SD): Neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD, taking as reference the baseline LD.

    Measured: 1 year

Secondary outcomes (1)
  1. Pathologic Complete Response

    Measured: 1 year

Timeline

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

  1. First posted4 Jun 2007 (estimated)
  2. Study startJan 2008
  3. Primary completionDec 2009
  4. Study completionDec 2009

Why it stopped: Low 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
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
1 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00481845
Sponsor's protocol ID
IRB-08051
Other IDs
BRSADJ0008, 97923
Status last verified
Dec 2016
First submitted
31 May 2007
Last updated
7 Feb 2017
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Vandetanib and Anastrozole in people with Breast Cancer, run by Stanford University 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 15 inclusion and 20 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 7 Feb 2017. 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 7 Feb 2017). 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?

Tumor Objective Response by MRI (time frame: 1 year). 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 7 Feb 2017.

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