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Study of Panobinostat Monotherapy in Women With v-ERB-B2 Avian Erythroblastic Leukemia Viral Oncogene Homolog 2 (HER2) Positive Locally Recurrent or Metastatic Breast Cancer

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00777335
Recruitment Status : Terminated (Very low recruitement rate.)
First Posted : October 22, 2008
Results First Posted : April 10, 2012
Last Update Posted : November 24, 2015
Information provided by (Responsible Party):
Translational Research in Oncology

Brief Summary:
The purpose of the study is to assess the benefit of panobinostat monotherapy given either orally or i.v. to women with HER2-positive locally recurrent or metastatic breast cancer

Condition or disease Intervention/treatment Phase
Breast Cancer Drug: Panobinostat - LBH589 Phase 2

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 4 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: A Randomized Phase II, Open-label Multicenter Trial of Panobinostat Monotherapy in Women With HER2 Positive Locally Recurrent or Metastatic Breast Cancer
Study Start Date : February 2009
Actual Primary Completion Date : March 2010
Actual Study Completion Date : March 2010

Arm Intervention/treatment
Experimental: Panobinostat i.v. Drug: Panobinostat - LBH589
Solution for infusion - 25mg/5ml

Experimental: Panobinostat oral Drug: Panobinostat - LBH589
Hard gelatine capsules - 5mg and 20 mg

Primary Outcome Measures :
  1. Overall Response (OR) Rate (as Determined by the Investigator): the Number of Patients Assigned to a Treatment Arm With a Confirmed Best Response of Complete Response(CR) or Partial Response (PR). [ Time Frame: At screening, every 2 cycles (i.e. 6 weeks) during the first 6 cycles, every 3 cycles (i.e. 9 weeks) during the subsequent cycles and at the End of Treatment (EOT) visit. After the EOT, the tumor assessments should be performed every 9 weeks. ]

    The assessment of OR is based on the response of target lesion, of non-target lesion and on presence of new lesions (RECIST Criteria (V1.0)-assessed by CT scan spiral and bone scan)

    • CR:Disappearance of all target lesions
    • PR:>=30% increase in the sum of the longest diameter (SLD),taking as reference the nadir SLD
    • Progressive Disease (PD):>=20% increase in the SLD, taking as reference the nadir SLD, or the appearance of one or more new lesions
    • Stable Disease(SD):Neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD, taking as reference the nadir SLD

Secondary Outcome Measures :
  1. Corrected QT Interval Fridericia's Formula (QTcF) [ Time Frame: Panobinostat intra-venous (i.v.): All cycles pre-dose measurements. For cycles 1 and 2, post-dose measurements as well. / Panobinostat oral: Pre-dose and post-dose measurements for all cycles. Note: each cycle = 3 weeks ]
    Prolonged QTcF: QTcF >450 msec and increase of baseline on greater than or equal to 60 msec.

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Written informed consent obtained prior to any study-related procedures
  • Women ≥ 18 years old
  • Patients with an ECOG performance status of ≤ 2 assessed within 2 weeks prior to randomization
  • Histologically or cytologically confirmed invasive breast carcinoma with locally recurrent or radiological evidence of metastatic disease. Locally recurrent disease must not be amenable to resection with curative intent.
  • Measurable disease per Response Evaluation Criteria in Solid Tumors (RECIST) guidelines
  • HER2-positive breast cancer patients by local laboratory testing
  • Prior trastuzumab-containing regimen (in neoadjuvant and/or adjuvant and/or metastatic settings) regardless of whether trastuzumab was given as monotherapy or in combination with chemotherapy. Any number of prior trastuzumab regimens is acceptable. Additional treatment with lapatinib after or before trastuzumab treatment is permitted, but not mandatory.
  • Radiological evidence of relapse or disease progression while on trastuzumab (or lapatinib) or within 12 months of the last dose of adjuvant trastuzumab.
  • Complete radiology and tumor assessment within 4 weeks prior to randomization:

    • Chest: Computed Tomography(CT) scan with intravenous contrast if the contrast is not medically contraindicated or Magnetic Resonance Imaging(MRI)
    • Abdomen: CT scan with intravenous and oral contrast if the contrast is not medically contraindicated or MRI
    • Brain: CT scan or MRI
    • Bone: Whole body Bone Scintigraphy
  • Up to 2 prior cytotoxic chemotherapy regimens, in addition to neo-adjuvant and adjuvant, for treatment of metastatic or locally recurrent breast cancer (including those cytotoxic chemotherapy treatments in combination with trastuzumab and/or lapatinib)
  • Patients must meet the following laboratory criteria within 2 weeks (14 days) prior to randomization:
  • Hematology
  • Neutrophil count of > 1200/mm3
  • Platelet count of > 100,000/mm3
  • Hemoglobin ≥ 90 g/L
  • Biochemistry
  • Aspartate aminotransferase/glutamic oxaloacetic transaminase (AST/SGOT) and alanine aminotransferase/glutamic pyruvic transaminase(ALT/SGPT) ≤ 2.5 x upper limit of normal (ULN) or ≤ 5.0 x ULN if the transaminase elevation is due to disease involvement
  • Serum bilirubin ≤ 1.5 x ULN
  • Serum creatinine ≤ 1.5 x ULN or 24-hour creatinine clearance ≥ 50 mL/min
  • Serum potassium, sodium, magnesium, phosphorus, total calcium (corrected for serum albumin) or ionized calcium within normal limits for the institution
  • Serum albumin ≥ Lower Limit of Normal(LLN) or 30g/L
  • Clinically euthyroid function (thyroid-stimulating hormone (TSH) and free T4). (Patients are permitted to receive thyroid hormone supplements to treat underlying hypothyroidism).
  • Left Ventricular Ejection Fraction(LVEF) assessment (2-D echocardiogram or Multiple Uptake Gated Acquisition Scan(MUGA) scan) performed within 6 weeks prior to randomization, showing a LVEF value > 50%
  • Electrocardiogram performed within 1 week prior to randomization (details about findings on the Electrocardiogram that are not acceptable for participating in the study are reported in the Exclusion criteria section)
  • Women of childbearing potential (WOCBP) must have a negative serum pregnancy test within 7 days prior to randomization and agree to appropriate method of pregnancy prevention

Exclusion Criteria:

  • Prior Histone Deacetylase(HDAC),Deacetylase(DAC), Heat Shock Protein 90 (HSP90) inhibitors or valproic acid for the treatment of cancer
  • Patients who will need valproic acid for any medical condition during the study or within 5 days prior to first panobinostat treatment
  • Patients who have received prior chemotherapy or investigational agent within the last 4 weeks prior to randomization (6 weeks for nitrosoureas and mitomycin; 2 weeks for capecitabine)
  • Patients who have received prior radiotherapy to ≥ 25% of the bone marrow within the last 4 weeks prior to randomization; local radiotherapy is allowed however all recently irradiated lesions should not be included in the measurable disease assessment
  • Patients who have received prior investigational agents within the last 4 weeks prior to randomization
  • Patients with unresolved diarrhea ≥CTCAE (National Cancer Institute Common Terminology Criteria for Adverse Events) grade 1
  • Impairment of gastrointestinal (GI) function or GI disease that may significantly alter the absorption of oral panobinostat
  • History of cardiac dysfunction including any one of the following:
  • Complete left bundle branch block or necessity for a permanent cardiac pacemaker or congenital long QT syndrome or history or presence of ventricular tachyarrhythmias or clinically significant resting bradycardia (<50 beats per minute) or QTcF > 450 msec on screening electrocardiogram(ECG) or right bundle branch block and left anterior hemiblock (bifascicular block)
  • Presence of unstable atrial fibrillation (ventricular response rate >100 bpm). Patients with stable atrial fibrillation are allowed in the study provided they do not meet the other cardiac exclusion criteria
  • Previous history angina pectoris or acute myocardial infarction(MI) within 6 months of randomization
  • Congestive heart failure (New York Heart Association functional classification III-IV)
  • Other clinically significant heart disease (e.g. cardiomyopathy, cardiac artery disease, uncontrolled hypertension, or history of poor compliance with an antihypertensive regimen)
  • Acute or chronic liver or renal disease
  • Other concurrent severe and/or uncontrolled medical conditions (e.g., uncontrolled diabetes mellitus, active untreated or uncontrolled infection, chronic obstructive or chronic restrictive pulmonary disease including dyspnoea at rest from any cause) that could cause unacceptable safety risks or compromise compliance with the protocol
  • Concomitant use of drugs with a risk of causing torsades de pointes where such treatments cannot be discontinued or switched to a different medication prior to starting study drug
  • Brain metastases, unless patient randomized on study at least 90 days from completion of brain radiotherapy and / or surgery without radiologic or functional evidence of progressive brain metastases, and off corticosteroids above the dose of 7.5 mg prednisone or equivalent; No concurrent radiotherapy for brain metastasis is allowed
  • Clinically significant third space fluid accumulation
  • Concurrent bisphosphonates unless if initiated prior to study entry (at least 4 weeks before study randomization)
  • Pregnant (i.e., positive beta-human chorionic gonadotropin test) or breast feeding
  • Unable to swallow oral medications
  • Not willing to use a double barrier method of non-hormonal birth control. Contraception must be used during the study and for 90 days after last dose of study treatment.
  • Patients with any significant history of non-compliance to medical regimens or with inability to grant a reliable informed consent

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00777335

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United States, California
Los Angeles, California, United States, 90095-1678
Sponsors and Collaborators
Translational Research in Oncology
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Study Chair: Richard Finn, MD University of California, Los Angeles
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Responsible Party: Translational Research in Oncology Identifier: NCT00777335    
Other Study ID Numbers: TRIO 016
First Posted: October 22, 2008    Key Record Dates
Results First Posted: April 10, 2012
Last Update Posted: November 24, 2015
Last Verified: October 2015
Additional relevant MeSH terms:
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Breast Neoplasms
Neoplasms by Site
Breast Diseases
Skin Diseases
Antineoplastic Agents
Histone Deacetylase Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action