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Phase 2 N=111 Randomized Triple-blind Treatment

Trial of Paclitaxel/Bevacizumab +/- Everolimus for Patients With HER2-Negative Metastatic Breast Cancer

Metastatic Breast Cancer

Enrolled (actual)
111
Serious AEs
28.8%
Results posted
Dec 2014
Primary outcome: Primary: Progression-Free Survival (PFS) — 9.1; 7.1 months

Study Design & Population

Study type
Interventional
Phase
Phase 2
Interventions
Everolimus (Drug); Bevacizumab (Drug); Paclitaxel (Drug); Placebo (Drug)
Age
Adult, Older Adult · 18+ yrs
Sex
All
Sponsor
SCRI Development Innovations, LLC
Primary completion
Jun 2014

Outcome Measures

OutcomeResultp-value
PRIMARY
Progression-Free Survival (PFS)
9.1; 7.1
SECONDARY
Number of Patients With Treatment-related Adverse Events (AEs) as a Measure of Safety and Tolerability
27; 26; 2; 2; 23; 8
SECONDARY
Overall Response Rate (ORR)
35; 32
SECONDARY
Duration of Response (DOR)
7.8; 6.0
SECONDARY
Overall Survival (OS)
17.5; 19.6

Summary

This randomized, double blind, placebo controlled trial will evaluate the impact of adding everolimus to the combination of weekly paclitaxel plus bevacizumab in the first-line treatment of women with HER2-negative metastatic breast cancer. Patients will be randomized (1:1) to receive either paclitaxel/bevacizumab/everolimus (Treatment Arm 1) or paclitaxel/ bevacizumab/placebo (Treatment Arm 2). Patients will be evaluated for response to treatment every 8 weeks; responding and/or stable patients will continue treatment, with re-evaluations every 8 weeks, until tumor progression or intolerable toxicity occurs. Outcomes will be assessed for each treatment arm separately. This trial is not intended to compare treatment arms primarily. Any such analyses are exploratory and will be conducted without adjustment for multiple hypothesis testing.

Eligibility Criteria

Inclusion Criteria

  • Female or male patients >=18 years of age.
  • Histologically confirmed invasive breast cancer, locally unresectable or metastatic.
  • No prior chemotherapy for MBC. Patients may have received adjuvant or

neoadjuvant chemotherapy (including taxanes and/or bevacizumab) as long as

treated was completed >12 months prior to relapse. Prior hormonal therapy in the

adjuvant or metastatic setting will be permitted.

  • Prior hormonal therapy in the adjuvant or metastatic setting is permitted. Estrogen receptor positive patients should be considered candidates for chemotherapy.
  • HER2-negative breast cancer, defined as follows:
  • FISH-negative (FISH ratio 1500/mm3
  • Platelet count >=100,000/mm3
  • Hemoglobin >9 g/dL
  • Adequate liver function, defined by:

· AST and ALT =40 ml/min

  • International normalized ratio (INR) 1.0 at screening

or

  • Urine dipstick for proteinuria >=2+ (patients discovered to have

>=2+ proteinuria on dipstick urinalysis at baseline should undergo a 24 hour

urine collection and must demonstrate =12 weeks.

  • Ability to swallow oral medications.
  • Adequate cardiac function, defined by baseline left ventricular ejection fraction (LVEF) value >= normal per institutional guidelines by MUGA scan or

echocardiogram (ECHO).

  • Adequate recovery from recent surgery.
  • Major surgical procedure >28 days from study entry
  • Minor surgical procedure >7 days from study entry (Portacath placement

excepted - patients can start treatment 4 weeks prior to study entry are eligible, if they meet all of the following criteria: 1) residual symptoms =12 months prior to recurrence.

  • Previous radiotherapy for metastatic disease completed 150 mmHg or

diastolic pressure >100 mmHg, despite optimal medical management.

  • Concurrent use of CYP3A4 inhibitors and inducers from 72 hours prior to initiation of study treatment until the end of treatment with everolimus.
  • Cardiac disease, including: congestive heart failure (CHF) > Class II per New York Heart Association (NYHA) classification; unstable angina (anginal symptoms at rest) or new-onset angina (i.e., began within the last 3 months), or myocardial infarction within the past 6 months; symptomatic CHF, unstable angina pectoris, or cardiac ventricular arrhythmias requiring anti-arrhythmic therapy.
  • History of stroke or transient ischemic attack within 6 months prior to first

bevacizumab dose.

  • Patients with any non-healing wound, ulcer, or long-bone fracture.
  • Patients with clinical history of hemoptysis or hematemesis.
  • Patients with any history of a bleeding diathesis or coagulopathy.
  • Patients with a PEG or G tube cannot be enrolled into this trial.
  • History of abdominal fistula, gastrointestinal perforation, or intra-abdominal abscess within 6 months prior to beginning bevacizumab.
  • Patients with an impairment of gastrointestinal function or gastrointestinal disease that may significantly alter the absorption of everolimus (e.g., ulcerative disease, uncontrolled nausea, vomiting, diarrhea, malabsorption syndrome, or small bowel resection).
  • Patients who have any severe and/or uncontrolled medical conditions or other

conditions that could affect their participation such as:

  • severe impaired lung functions as defined as spirometry and DLCO that is 50% of the normal predicted value and/or 02 saturation that is 88% or less at rest on room air
  • uncontrolled diabetes as defined by fasting serum glucose >1.5 x ULN.
  • History of any other disease, physical examination finding, or clinical laboratory finding giving reasonable suspicion of a disease or condition that contraindicates use of an investigational drug, or that might affect interpretation of the results of this study, or render the subject at high risk for treatment complications.
  • History of hypersensitivity to Cremophor EL (polyoxyethylated castor oil) or a drug formulated in Cremophor EL, such as paclitaxel.
  • Patients may not receive any other investigation
View full record on ClinicalTrials.gov →

Data sourced from ClinicalTrials.gov (NCT00915603). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication.

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