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Safety and Effect of The HDAC Inhibitor Panobinostat on HIV-1 Expression in Patients on Suppressive HAART (CLEAR)

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ClinicalTrials.gov Identifier: NCT01680094
Recruitment Status : Completed
First Posted : September 6, 2012
Last Update Posted : February 25, 2014
Sponsor:
Collaborators:
Massachusetts General Hospital
Monash University
University of Sydney
Novartis
Aarhus University Hospital
Information provided by (Responsible Party):
University of Aarhus

Tracking Information
First Submitted Date  ICMJE September 3, 2012
First Posted Date  ICMJE September 6, 2012
Last Update Posted Date February 25, 2014
Study Start Date  ICMJE September 2012
Actual Primary Completion Date September 2013   (Final data collection date for primary outcome measure)
Current Primary Outcome Measures  ICMJE
 (submitted: September 3, 2012)
Change from baseline in HIV transcription in latently infected CD4+ T-cells as measured by copies of unspliced HIV-RNA in the CD4+ T-cells of HIV-infected patients on suppressive HAART [ Time Frame: Day 1 (before study drug and 2 hours after first dose), Day 2, 5, 10, 15, 24, 29, 38, 43, 52 ]
Original Primary Outcome Measures  ICMJE Same as current
Change History
Current Secondary Outcome Measures  ICMJE
 (submitted: September 3, 2013)
  • Change from baseline in the size of the latent HIV-reservoir as measured by copies of proviral HIV-DNA per 10⁶ CD4+ T-cells [ Time Frame: 12 and 32 weeks after initiation of study treatment ]
  • Change from baseline in the frequency of cells latently infected with replication competent HIV expressed as infectious units per million (IUPM) [ Time Frame: 12 weeks after initiation of study treatment ]
  • Safety evaluation, as measured by adverse events (AE), adverse reactions (AR), serious adverse events (SAE), serious adverse reactions (SAR), and serious unexpected serious adverse reactions (SUSAR) [ Time Frame: Active follow-up until 32 weeks after initiation of study treatment ]
  • Plasma HIV-RNA as measured by the single copy assay [ Time Frame: Day 1 (before study drug and 2 hours after first dose), Day 2, 5, 10, 15, 24, 29, 38, 43, 52, 84, 224 ]
  • During an optional HAART-interruption study (if performed, see below): 1) Time to viremia >1000 copies/ml; 2) Time to meet criteria to restart HAART [ Time Frame: To be performed upon completion of 32 weeks follow-up based on the below specified criteria ]
    Upon completion of the study, subjects may be invited to participate in an additional observational study in which HAART will be interrupted to evaluate the effect of study treatment on virological control. Enrolment into this study is optional and conditioned by the following criteria pertaining to the effect of study treatment on the latent HIV-1 reservoir:
    • Significant increase in unspliced HIV-RNA during in accordance with the primary endpoint measure
    • CD4+ T-cell count >500/mm3
Original Secondary Outcome Measures  ICMJE
 (submitted: September 3, 2012)
  • Change from baseline in the size of the latent HIV-reservoir as measured by copies of proviral HIV-DNA per 10⁶ CD4+ T-cells [ Time Frame: 12 and 32 weeks after initiation of study treatment ]
  • Change from baseline in the frequency of cells latently infected with replication competent HIV expressed as infectious units per million (IUPM) [ Time Frame: 12 weeks after initiation of study treatment ]
  • Safety evaluation, as measured by adverse events (AE), adverse reactions (AR), serious adverse events (SAE), serious adverse reactions (SAR), and serious unexpected serious adverse reactions (SUSAR) [ Time Frame: Active follow-up until 32 weeks after initiation of study treatment ]
  • Plasma HIV-RNA as measured by the single copy assay [ Time Frame: Day 1 (before study drug and 2 hours after first dose), Day 2, 5, 10, 15, 24, 29, 38, 43, 52, 84, 224 ]
  • During an optional HAART-interruption study (if performed, see below): 1) Time to viremia >1000 copies/ml; 2) Time to meet criteria to restart HAART [ Time Frame: To be performed upon completion of 32 weeks follow-up based on the below specified criteria ]
    Upon completion of the study, subjects may be invited to participate in an additional observational study in which HAART will be interrupted to evaluate the effect of study treatment on virological control. Enrolment into this study is optional and conditioned by the following criteria pertaining to the effect of study treatment on the latent HIV-1 reservoir:
    • Significant increase in unspliced HIV-RNA during in accordance with the primary endpoint measure
    • Profound reduction in reservoir size indicated by >75% decrease in total HIV-DNA/106 CD4+ T-cells or total HIV-DNA below the limit of detection (defined as 5 copies/106 CD4+ T-cells) at week 36
    • CD4+ T-cell count >500/mm3
Current Other Pre-specified Outcome Measures Not Provided
Original Other Pre-specified Outcome Measures Not Provided
 
Descriptive Information
Brief Title  ICMJE Safety and Effect of The HDAC Inhibitor Panobinostat on HIV-1 Expression in Patients on Suppressive HAART
Official Title  ICMJE The Safety and Efficacy of The Histone Deacetylase Inhibitor Panobinostat for Purging HIV-1 From The Latent Reservoir (CLEAR) Study
Brief Summary The purpose of this study is to assess the safety and ability of panobinostat to re-activate HIV transcription in latently infected CD4+ T-cells among HIV-infected patients on stable antiretroviral therapy
Detailed Description

Despite effective highly active antiretroviral treatment (HAART), HIV-infection persists and rebounds upon treatment interruption, presumably due to latently infected resting CD4+ T-cells. To achieve eradication of HIV-infection this reservoir of latently HIV-infected cells must be depleted.

Several therapeutic strategies are considered in HIV-cure related research. One approach is to exploit the ability of histone deacetylase (HDAC) inhibitors to reactivate HIV-1 expression in latently infected cells in the presence of HAART.

This is an investigator initiated single-group, non-randomized interventional phase I/II trial designed to evaluate the safety and ability of oral panobinostat to activate HIV-transcription in latently infected CD4+ T-cells of HIV-infected patients on suppressive HAART. The study will enrol 16 patients. Each subject will be used as his/her own control in a before-after design: endpoints measured after study intervention will be compared to baseline for each subject.

The main study will comprise three phases:

  1. A pre-treatment screening/observation phase of 4 weeks (weeks 0-4)
  2. A treatment phase of 8 weeks (weeks 4-12), where 20 mg panobinostat will be administered orally on days 1, 3, and 5 (TIW) every other week (QOW) while maintaining background HAART (co-therapy)
  3. A post-treatment follow-up phase of 24 weeks (weeks 12-36) to evaluate the effect of study treatment

Study participants will be reviewed 13 times during the course of study treatment and follow-up. Blood will be drawn for HIV viral load assessments, CD4 cell counts, biochemistry, hematology and additional immunological and virological analyses. An electrocardiogram of the heart (ECG) will be taken at screening, day 10 and 24 post treatment initiation.

The safety and tolerability of panobinostat will be evaluated based on physical exams, laboratory tests and questions about any problems patients may have experienced during the study. A pre-specified schedule based will guide dose modification in case of unacceptable adverse effects.

Study Type  ICMJE Interventional
Study Phase  ICMJE Phase 1
Phase 2
Study Design  ICMJE Allocation: N/A
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Condition  ICMJE HIV Infection
Intervention  ICMJE Drug: Panobinostat
20 mg panobinostat will be administered orally on days 1, 3, and 5 (TIW) every other week (QOW) for a period of 8 weeks while maintaining background HAART
Other Name: LBH589
Study Arms  ICMJE Experimental: Panobinostat
20 mg panobinostat will be administered orally on days 1, 3, and 5 (TIW) every other week (QOW) for a period of 8 weeks while maintaining background HAART
Intervention: Drug: Panobinostat
Publications *

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Recruitment Information
Recruitment Status  ICMJE Completed
Actual Enrollment  ICMJE
 (submitted: February 24, 2014)
15
Original Estimated Enrollment  ICMJE
 (submitted: September 3, 2012)
16
Actual Study Completion Date  ICMJE January 2014
Actual Primary Completion Date September 2013   (Final data collection date for primary outcome measure)
Eligibility Criteria  ICMJE

Inclusion Criteria:

  • Documented HIV-1 infection
  • Age >18 years
  • HIV-1 plasma RNA <50 copies/ml for at least 2 years with at least 2 viral load measures per year. Episodes of a single HIV plasma RNA 50-199 copies/ml will not exclude participation if the subsequent HIV plasma RNA was <50 copies/ml
  • Receiving HAART, defined as at least 2 nucleoside/nucleotide reverse transcriptase inhibitors plus a non-nucleoside reverse transcriptase inhibitor, integrase inhibitor, or a protease inhibitor
  • CD4+ T-cell count >500/mm3 on minimum 2 occasions in the last 12 months prior to study entry
  • Able to give informed consent

Exclusion Criteria:

  • Any significant acute medical illness in the past 8 weeks
  • Any evidence of an active AIDS-defining opportunistic infection
  • Current or recent gastrointestinal disease that may impact the absorption of the investigational drug
  • Any gastrointestinal surgery that could impact upon the absorption of the investigational drug
  • Active alcohol or substance use that, in the Investigator's opinion, will prevent adequate compliance with study therapy
  • Patient has the following laboratory values within 3 weeks before starting the investigational drug (lab tests may be repeated, as clinically indicated, to obtain acceptable values before failure at screening is concluded but supportive therapies are not to be administered within the week prior to screening tests for ANC or platelet count)

    • Hepatic transaminases (AST or ALT) ≥3 x upper limit of normal (ULN)
    • Serum total bilirubin ≥1.5 ULN
    • Serum creatinine levels ≥1.5 x ULN, or calculated creatinine clearance ≤60 ml/min
    • Platelet count ≤100 x109/L
    • Absolute neutrophil count ≤1.5x109/L
    • Serum potassium, magnesium, phosphorus outside normal limits
    • Total calcium (corrected for serum albumin) or ionized calcium ≤lower normal limits
  • Hepatitis B or C infection as indicated by the presence of Hepatitis B surface antigen (HBsAg) or hepatitis C virus RNA (HCV-RNA) in blood
  • A personal history of clinically significant cardiac disease, symptomatic or asymptomatic arrhythmias, syncopal episodes, or additional risk factors for Torsades de pointes (e.g. heart failure)
  • History of malignancy or transplantation, including skin cancers or Kaposi sarcoma
  • History of diabetes mellitus
  • Use of a protease inhibitor
  • Receipt of immunomodulating agents, immunization or systemic chemotherapeutic agents within 28 days prior to study entry
  • Use of an agent definitely or possibly associated with effects on QT intervals within 2 weeks of screening
  • ECG at screening that shows QTc >450 msec when calculated using the Fridericia formula from either lead V3 or V4
  • Known resistance to >2 classes of ART
  • Known hypersensitivity to the components of panobinostat or its analogues
  • Current use of sodium valproate or other HDAC inhibitor
  • Women who are pregnant or breastfeeding, or with a positive pregnancy test during screening or Women of Child Bearing Potential (WOCBP) who are unwilling or unable to use an acceptable method of contraception (according to the Danish Medicines Agency guidelines) to avoid pregnancy for the entire study period and for at least 4 weeks before and 4 weeks after study treatment
  • Males or females who are unwilling or unable to use barrier contraception during sexual intercourse for the entire study period, including at least 4 weeks before, 4 weeks after study treatment, and when plasma HIV-RNA is detectable using standard assays
Sex/Gender  ICMJE
Sexes Eligible for Study: All
Ages  ICMJE 18 Years and older   (Adult, Older Adult)
Accepts Healthy Volunteers  ICMJE No
Contacts  ICMJE Contact information is only displayed when the study is recruiting subjects
Listed Location Countries  ICMJE Denmark
Removed Location Countries  
 
Administrative Information
NCT Number  ICMJE NCT01680094
Other Study ID Numbers  ICMJE CLEAR0001
Has Data Monitoring Committee Yes
U.S. FDA-regulated Product Not Provided
IPD Sharing Statement  ICMJE Not Provided
Responsible Party University of Aarhus
Study Sponsor  ICMJE University of Aarhus
Collaborators  ICMJE
  • Massachusetts General Hospital
  • Monash University
  • University of Sydney
  • Novartis
  • Aarhus University Hospital
Investigators  ICMJE
Study Director: Lars Østergaard, MD,DMSc,PhD Aarhus University Hospital
Principal Investigator: Thomas A Rasmussen, MD Aarhus University Hospital
PRS Account University of Aarhus
Verification Date February 2014

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP