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A Phase Ib/IIb, Open-label, Multi-center, Study of Oral Panobinostat Administered With 5-Azacitidine (in Adult Patients With Myelodysplastic Syndromes (MDS), Chronic Myelomonocytic Leukemia (CMML), or Acute Myeloid Leukemia (AML).

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ClinicalTrials.gov Identifier: NCT00946647
Recruitment Status : Completed
First Posted : July 27, 2009
Results First Posted : June 23, 2020
Last Update Posted : August 4, 2020
Sponsor:
Information provided by (Responsible Party):
Novartis ( Novartis Pharmaceuticals )

Brief Summary:
The purpose of this randomized, two-arm, open-label expansion phase study was to collect preliminary efficacy data of panobinostat at the recommended phase II dose (RPIID) level in combination with azacytidine (5-Aza) versus an active control arm 5-Aza alone. This randomized phase II part also allowed collecting safety data of panobinostat in combination with 5-Aza in comparison to single-agent 5-aza.

Condition or disease Intervention/treatment Phase
Myelodysplastic Syndromes Chronic Myelomonocytic Leukemia Acute Myeloid Leukemia Drug: Panobinostat (LBH589) Drug: 5-Azacytidine Phase 1 Phase 2

Detailed Description:

The primary objective of the phase lb portion of this study was to determine the maximum tolerated dose (MTD )and/or recommended phase ll dose (RPIID) of oral panobinostat in combination with a fixed dose of 5-Aza in adult patients with International Prognostic Scoring System intermediate-2 (IPSS INT-2) or high risk myelodysplastic syndrome (MDS), Chronic myelomonocytic leukemia (CMML), or Acute myelogenous leukemia (AML).

The primary objective of the phase llb portion of this study was to assess preliminary efficacy of treatment with the panobinostat and 5-Aza combination at the RPIID relative to treatment with single agent 5-Aza through the assessment of composite CR (complete response (CR) or CRi or bone marrow CR).

In the phase lb phase of the study, the patients received escalating oral doses of panobinostat commencing in Cycle 1. The starting dose for panobinostat was 20 mg/day administered orally commencing on Day 3. Each treatment cycle consisted of 28 days (4 weeks). In each cycle, panobinostat was administered twice in Week 1 (Day 3, Day 5), thrice in Week 2 (Day 8, Day 10, and Day 12) and once in Week 3 (Day 15), with no dosing in Week 4. Successive cohorts of patients received escalating doses of panobinostat until the MTD/RPIID was determined. The dose of 5-Aza was fixed at 75 mg/m2/day for 7 days in Week 1 of each cycle.

After the MTD/RPIID was determined, enrollment in the Phase Ib part was closed and the Phase IIb part of the study commenced. Ongoing patients from the Phase Ib part continued their treatment at the assigned dose level according to the regimen and schedule for the Phase Ib part.

Once the RPIID was defined in Phase Ib, additional 80 patients were to be enrolled into the Phase IIb part of the study and randomly assigned in a 1:1 ratio receiving the RPIID of panobinostat plus 5-Aza (investigational arm) or single agent 5-Aza (active control arm). The treatment schedule for the investigational arm was the same as that for the Phase Ib. Single agent 5-Aza (active control arm) was administered according to the locally approved label (75mg/m2 daily for 7 days). Patients continued treatment until disease progression, unacceptable toxicity or consent withdrawal, whichever came first.

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 113 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Masking Description: Treatment was assigned sequentially for the initial dose escalation part (phase Ib): If a dose was safe, the next cohort started with the next dose level. Randomization applies only for the phase IIb part.
Primary Purpose: Treatment
Official Title: A Phase Ib/IIb, Open-label, Multi-center, Study of Oral Panobinostat (LBH589) Administered With 5-Azacitidine (in Adult Patients With Myelodysplastic Syndromes (MDS), Chronic Myelomonocytic Leukemia (CMML), or Acute Myeloid Leukemia (AML).
Actual Study Start Date : December 2, 2009
Actual Primary Completion Date : April 29, 2019
Actual Study Completion Date : April 29, 2019


Arm Intervention/treatment
Experimental: Panobinostat + 5-Azacytidine

In phase I: Panobinostat : Escalating doses starting with 20 mg delivered orally at Day 3, Day 5, Day 8, Day 10, Day 12, Day 15.

In phase II: Panobinostat : Rapid Phase II doses at 30 mg delivered orally at Day 3, Day 5, Day 8, Day 10, Day 12, Day 15.

In both phases, dose of 5-Azacytidine was 75 mg/m^2, subcutaneously Daily for Day 1 to Day 7.

Drug: Panobinostat (LBH589)
Panobinostat was supplied by Novartis as immediate-release hard gelatin capsules in strengths of 5 mg, 10 mg, and 20 mg packaged in high density polyethylene bottles.

Drug: 5-Azacytidine
Active Comparator: 5-Azacytidine

The dose of 5-Aza was fixed at 75 mg/m2/day for 7 days in Week 1 of each cycle. 5-Aza was sourced locally, except in 4 countries (Hungary, Switzerland, UK, and Spain, for which a central purchase was used by Novartis.

Dose of 5-Azacytidine : 75 mg/m^2 subcutaneously daily from Day 1 to Day 7.

Drug: 5-Azacytidine



Primary Outcome Measures :
  1. Number of Participants With Dose Limiting Toxicity (DLT) (Phase lb) [ Time Frame: within the first 28 days (cycle 1) ]
    Dose limiting toxicity (DLT) was defined as a toxicity requiring treatment withdrawal and included the following: Non-hematologic toxicity qualifying for DLT and Hematologic toxicity qualifying for DLT

  2. Number of Dose Limiting Toxicity (DLT) (Phase lb) [ Time Frame: within the first 28 days (cycle 1) ]
    Dose limiting toxicity (DLT) was defined as a toxicity requiring treatment withdrawal and included the following: Non-hematologic toxicity qualifying for DLT and Hematologic toxicity qualifying for DLT

  3. Composite Complete Response (Phase Llb) [ Time Frame: 48 months ]
    Composite complete response is defined as complete response (CR), Complete response with incomplete blood count recovery (CRi) or bone marrow complete response (BM-CR) as defined by the International Working Group (IWG) response criteria.


Secondary Outcome Measures :
  1. Clinical Response Other Than Composite Clinical Response for Myeloid Dysplastic Syndromes(MDS)/Chronic Myelomonocytic Leukemia (CMML) Patients Per Investigator (Phase Llb) [ Time Frame: 48 months ]
    This is the best overall response as measured by Clinical response. Clinical response is defined as having complete remission (CR), bone marrow complete remission (BM-CR), partial remission or hematologic improvement (HI) as defined by the International Working Group (IWG) response criteria.

  2. Clinical Response Other Than Composite Clinical Response for Acute Myelogenous Leukemia (AML) Patients Per Investigator (Phase Llb) [ Time Frame: 48 months ]
    This is the best overall response as measured by Clinical response. Clinical response is defined as having complete remission (CR), complete remission with incomplete blood count recovery (CRi) or partial remission as defined by the International Working Group (IWG) response criteria.

  3. Overall Response Rate (ORR) Assessed by Best Overall Response: Participants With MDS/CMML Per Investigator (Phase Llb) [ Time Frame: 48 months ]

    Best overall response as measured by complete remission (CR) or bone marrow CR (BM-CR) or partial remission (PR) or hematologic improvement (HI).

    Overall response patients achieved other than the composite CR by individual response category: CR, CRi, mCR or PR as defined by the International Working Group (IWG) response criteria.


  4. Overall Response Rate (ORR) Assessed by Best Overall Response: Participants With AML Per Investigator (Phase Llb) [ Time Frame: 48 months ]

    Best overall response as measured by complete remission (CR) or complete response with incomplete blood count recovery (CRi) or partial remission (PR).

    Overall response patients achieved other than the composite CR by individual response category: CR, CRi or PR.


  5. Hematologic Improvement (HI) for Myeloid Dysplastic Syndromes(MDS)/Chronic Myelomonocytic Leukemia (CMML) Patients Per Investigator (Phase Llb) [ Time Frame: 48 months ]

    Hematologic response consists of Erythroid response (HI-E), Platelet response (HI-P) and Neutrophil response (HI-N).

    HI-E: Hgb increase by ≥ 1.5 g/dL over pretreatment & relevant reduction of units of RBC transfusions by an absolute number of at least 4 units of PRBCs/8 weeks compared with the pretreatment transfusion number in the previous 8 weeks. Only RBC transfusions given for a Hgb of ≤ 9.0 g/dL pretreatment will count in the RBC transfusion response evaluation.

    HI-P: Absolute increase of ≥ 30 x 109/L over pretreatment or patients starting with ≥ 20 x 109/L platelets OR increase from <20 x 109/L at pretreatment to > 20 x 109/L and by at least 100%.

    HI-N: At least 100% increase and an absolute increase > 0.5 x 109/L over pretreatment value.


  6. 1-year Survival Rate (Phase Llb) [ Time Frame: 12 months ]
    Overall survival was defined as the time from date of randomization to date of death due to any cause. If a patient was not known to have died, survival was censored at the date of last contact. Patients not known to have died were censored for 'Lost to follow-up' if the time between their last contact date and the analysis cut-off date was longer than 3 months and 2 weeks (104 days) during the first year after study evaluation completion, and longer than 6 months and 2 weeks (194 days), thereafter. The 1-year survival rate was obtained from the Kaplan-Meier analysis of overall survival, and its variance was estimated by Greenwood's formula.

  7. Time to Progression (TTP) (Phase Llb) [ Time Frame: 48 months ]

    Time to progression (TTP) was defined as the time from the date of randomization to the date of the first documented PD per investigator's assessment or death due to study indication.

    Time to progression was analyzed by the Kaplan Meier method. Based on the Guidelines for Implementation of international working group (IWG) response criteria in AML, MDS and CMML according to Cheson 2003 and 2006.




Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.


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

Inclusion Criteria:

Phase l:

  • Patients with cytopathologically confirmed diagnosis of AML according to WHO criteria, excluding acute promyelocytic leukemia who are eligible for Vidaza treatment
  • ECOG performance status greater less than or equal to 2

Phase ll:

  • Adult patients (age ≥ 18 years) who were candidates for treatment with 5-Aza and present with one of the following:

    • intermediate-2 or high-risk myelodysplastic syndromes according to the International Prognostic Scoring System (IPSS). OR
    • AML with multilineage dysplasia and maximum of 30% blasts (former RAEB-T according to FAB) OR
    • chronic myelomonocytic leukemia (CMML)
  • Patients must have had the following laboratory values unless elevations are considered due to MDS or leukemia: AST/SGOT and/or ALT/SGPT ≤ 2.5 x ULN; serum creatinine ≤ 1.5 x ULN; serum bilirubin (total and direct) ≤ 2 x ULN; electrolyte panel within normal ranges (WNL) for the institution.

Exclusion Criteria:

Phase l:

  • Prior treatment with deacetylase inhibitors
  • Concurrent therapy with any other investigational agent

Phase ll:

  • Planned hematopoietic stem-cell transplantation (HSCT)
  • Patients with therapy-related MDS
  • Patients with therapy-related AML and/or relapsed/refractory AML
  • Patients with impaired cardiac function including any of the following:

    • Complete left bundle branch block or use of a permanent cardiac pacemaker, congenital long QT syndrome, history or presence of ventricular tachyarrhythmia, clinically significant resting bradycardia (<50 beats per minute), QTcF > 460 ms on screening ECG, or right bundle branch block + left anterior hemiblock (bifascicular block)
    • Presence of unstable atrial fibrillation (ventricular response rate >100 bpm). Patients with stable atrial fibrillation are eligible provided they do not meet the other cardiac exclusion criteria
    • Previous history of angina pectoris or acute MI within 6 months
    • Screening LVEF <45% by echocardiography or MUGA
    • Other clinically significant heart disease (e.g. uncontrolled hypertension or history of poor compliance with an antihypertensive regimen).
  • Any of concurrent severe and/or uncontrolled medical conditions which could compromise participation in the study. For example:

    • Uncontrolled diabetes
    • Active or uncontrolled infection
    • Uncontrolled hypothyroidism
    • Acute or chronic liver or renal disease
  • Patient had evidence of clinically significant mucosal or internal bleeding

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 ClinicalTrials.gov identifier (NCT number): NCT00946647


Locations
Show Show 38 study locations
Sponsors and Collaborators
Novartis Pharmaceuticals
Investigators
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Study Director: Novartis Pharmaceuticals Novartis Pharmaceuticals
  Study Documents (Full-Text)

Documents provided by Novartis ( Novartis Pharmaceuticals ):
Statistical Analysis Plan  [PDF] October 29, 2014
Study Protocol  [PDF] November 18, 2016

Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
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Responsible Party: Novartis Pharmaceuticals
ClinicalTrials.gov Identifier: NCT00946647    
Other Study ID Numbers: CLBH589H2101
2009-010548-32 ( EudraCT Number )
First Posted: July 27, 2009    Key Record Dates
Results First Posted: June 23, 2020
Last Update Posted: August 4, 2020
Last Verified: July 2020
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: Yes
Plan Description:

Novartis is committed to sharing with qualified external researchers, access to patient-level data and supporting clinical documents from eligible studies. These requests are reviewed and approved by an independent expert panel on the basis of scientific merit. All data provided is anonymized to respect the privacy of patients who have participated in the trial in line with applicable laws and regulations.

This trial data is currently available according to the process described on www.clinicalstudydatarequest.com.

URL: https://www.clinicalstudydatarequest.com

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Studies a U.S. FDA-regulated Drug Product: Yes
Keywords provided by Novartis ( Novartis Pharmaceuticals ):
Myelodysplastic Syndromes
Chronic Myelomonocytic Leukemia
Acute Myeloid Leukemia
hypomethylating therapy
deacetylase inhibitor
MDS
CMML
AML
Additional relevant MeSH terms:
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Leukemia
Leukemia, Myeloid
Leukemia, Myeloid, Acute
Preleukemia
Leukemia, Myelomonocytic, Acute
Leukemia, Myelomonocytic, Chronic
Leukemia, Myelomonocytic, Juvenile
Myelodysplastic Syndromes
Syndrome
Disease
Pathologic Processes
Neoplasms by Histologic Type
Neoplasms
Bone Marrow Diseases
Hematologic Diseases
Precancerous Conditions
Myelodysplastic-Myeloproliferative Diseases
Azacitidine
Panobinostat
Antimetabolites, Antineoplastic
Antimetabolites
Molecular Mechanisms of Pharmacological Action
Antineoplastic Agents
Enzyme Inhibitors
Histone Deacetylase Inhibitors