123I Radiolabeled 3BNC117
Pilot Study Using 123I Radiolabeled 3BNC117 SPECT/CT to Image HIV Reservoir in Chronically Infected HIV Patients
1 other identifier
interventional
6
1 country
1
Brief Summary
The conventional way to control HIV infection is the usage of a drug cocktail capable of suppressing the viral replication cycle, commonly known as antiretroviral therapy (ART). Despite effective ART it is not possible to eradicate HIV. The virus hides in particular cells to form the latent HIV-reservoir.\[1-9\] Studies that emphasise on revealing hidden reservoirs would aid in designing novel therapeutic strategies for controlling HIV infection. Molecular imaging by SPECT/CT has the potential to reveal hidden reservoirs of HIV virus that are not eliminated by currently used drugs capable of suppressing and thereby controlling the viral replication cycle in HIV infected patients. New approaches, necessary to prevent and treat HIV-1 infection, are gradually emerging. A new generation of highly potent broadly neutralizing antibodies (bN/Abs) may represent a promising approach to combating HIV-1 infection.\[10\] The broadly neutralizing antibody 3BNC117 antibody that can mimic human CD4 binding targeted against the HIV gp120 envelope protein has been tested in various clinical trials.\[11-14\] It has found to be safe and effective in reducing viraemia and to improve host humoral responses in HIV-1 infected individuals, and to have effect on viral rebound in patients who are kept off antiretroviral treatment briefly for experimental purpose. Imaging of simian immunodeficiency virus (SIV) infection by PET/CT has been successfully performed in nonhuman primates with a 64Cu-labeled SIV gp120-specific antibody called 7D3.\[15\] This study aims to use a similar approach in human with the 3BNC117 antibody. The 3BNC117 antibody has been successfully radiolabeled with iodine 123. The half-life of this radioisotope is appropriate for antibody imaging in nuclear medicine. Radiolabeled 123I 3BNC117 was shown to keep a good immunoreactivity for gp120. By using state of the art SPECT scanner a semi-quantitative image will be obtained. In addition, the absence of any chelator and the well known use of iodine-123 in clinic make it suitable for human intervention. No HIV imaging in human has been achieved yet, which is however fundamental to understand some key steps in the pathogenesis of HIV-induced immunodeficiency. This research opens promising opportunities for drug and vaccine development. Indeed, identification of virus reservoirs in treated patients would facilitate the development of strategies for eradicating these reservoirs or for extending latency period.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for early_phase_1
Started Feb 2018
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
February 8, 2018
CompletedFirst Submitted
Initial submission to the registry
February 12, 2018
CompletedFirst Posted
Study publicly available on registry
March 16, 2018
CompletedPrimary Completion
Last participant's last visit for primary outcome
January 28, 2020
CompletedStudy Completion
Last participant's last visit for all outcomes
January 28, 2020
CompletedJanuary 29, 2020
January 1, 2020
2 years
February 12, 2018
January 28, 2020
Conditions
Outcome Measures
Primary Outcomes (1)
Absorbed dose per Organ mGy/MBq
Absorbed dose in the organs at risk is calculated from planar images after organ contouring using OLINDA / EXM software; additionally blood samples (2 mL) is taken before each gamma camera scan to estimate the dose to bone marrow. The blood samples are needed to derive the radiation dose exposure to the bone marrow through the measure of the count rate in the blood sample using a calibrated gamma counter. MIRD (medical internal radiation dosimetry) based methods will provide the contribution to the bone marrow radiation exposure from activity present into the blood.\[19\] No other additional analysis will be performed on these blood samples.
3 month
Secondary Outcomes (1)
total number of lesions
3 month
Study Arms (1)
123I radiolabeled 3BNC117
EXPERIMENTAL123I radiolabeled 3BNC117
Interventions
Eligibility Criteria
You may qualify if:
- Subject newly diagnosed with HIV in a chronic phase requiring the introduction of an antiretroviral treatment (ART)
- Age 18 to 55
- HIV-1 infection confirmed by ELISA and immunoblot
- Plasma HIV-1 RN/A \> 5000 copies/ml
- Current CD4 cell count \> 200 cells/μl
- Ability and willingness to provide written informed consent
You may not qualify if:
- Primary infected HIV
- Currently on ART
- Participation in another clinical study of an investigational product currently or within past 30 days
- Pregnancy or lactation;
- History of systemic corticosteroids, immunosuppressive anti-cancer, or other medications considered significant by the trial physician within the last 6 months;
- Patient report, or chart history, of significant coronary artery disease, myocardial infarction, percutaneous coronary intervention with placement of cardiac stents;
- Uncontrolled hypertension, as defined by a systolic blood pressure \> 180 and/or diastolic blood pressure \> 120, in the presence or absence of anti-hypertensive medications;
- Any other clinically significant acute or chronic medical condition, such as autoimmune diseases, that in the opinion of the investigator would preclude participation;
- Laboratory abnormalities in the parameters listed below:
- Absolute neutrophil count ≤1 G/l
- Hemoglobin ≤ 10 gm/dL
- Platelet count ≤125 G/l
- ALT ≥ 2.0 x ULN
- AST ≥ 2.0 x ULN
- Total bilirubin ≥ 1.5 ULN
- +2 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Centre Hospitalier Universitaire Vaudois
Lausanne, Canton of Vaud, 1011, Switzerland
Related Publications (19)
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PMID: 24031012BACKGROUNDScheid JF, Mouquet H, Ueberheide B, Diskin R, Klein F, Oliveira TY, Pietzsch J, Fenyo D, Abadir A, Velinzon K, Hurley A, Myung S, Boulad F, Poignard P, Burton DR, Pereyra F, Ho DD, Walker BD, Seaman MS, Bjorkman PJ, Chait BT, Nussenzweig MC. Sequence and structural convergence of broad and potent HIV antibodies that mimic CD4 binding. Science. 2011 Sep 16;333(6049):1633-7. doi: 10.1126/science.1207227. Epub 2011 Jul 14.
PMID: 21764753BACKGROUNDCaskey M, Klein F, Lorenzi JC, Seaman MS, West AP Jr, Buckley N, Kremer G, Nogueira L, Braunschweig M, Scheid JF, Horwitz JA, Shimeliovich I, Ben-Avraham S, Witmer-Pack M, Platten M, Lehmann C, Burke LA, Hawthorne T, Gorelick RJ, Walker BD, Keler T, Gulick RM, Fatkenheuer G, Schlesinger SJ, Nussenzweig MC. Viraemia suppressed in HIV-1-infected humans by broadly neutralizing antibody 3BNC117. Nature. 2015 Jun 25;522(7557):487-91. doi: 10.1038/nature14411. Epub 2015 Apr 8.
PMID: 25855300BACKGROUNDSchoofs T, Klein F, Braunschweig M, Kreider EF, Feldmann A, Nogueira L, Oliveira T, Lorenzi JC, Parrish EH, Learn GH, West AP Jr, Bjorkman PJ, Schlesinger SJ, Seaman MS, Czartoski J, McElrath MJ, Pfeifer N, Hahn BH, Caskey M, Nussenzweig MC. HIV-1 therapy with monoclonal antibody 3BNC117 elicits host immune responses against HIV-1. Science. 2016 May 20;352(6288):997-1001. doi: 10.1126/science.aaf0972. Epub 2016 May 5.
PMID: 27199429BACKGROUNDScheid JF, Horwitz JA, Bar-On Y, Kreider EF, Lu CL, Lorenzi JC, Feldmann A, Braunschweig M, Nogueira L, Oliveira T, Shimeliovich I, Patel R, Burke L, Cohen YZ, Hadrigan S, Settler A, Witmer-Pack M, West AP Jr, Juelg B, Keler T, Hawthorne T, Zingman B, Gulick RM, Pfeifer N, Learn GH, Seaman MS, Bjorkman PJ, Klein F, Schlesinger SJ, Walker BD, Hahn BH, Nussenzweig MC, Caskey M. HIV-1 antibody 3BNC117 suppresses viral rebound in humans during treatment interruption. Nature. 2016 Jul 28;535(7613):556-60. doi: 10.1038/nature18929. Epub 2016 Jun 22.
PMID: 27338952BACKGROUNDSantangelo PJ, Rogers KA, Zurla C, Blanchard EL, Gumber S, Strait K, Connor-Stroud F, Schuster DM, Amancha PK, Hong JJ, Byrareddy SN, Hoxie JA, Vidakovic B, Ansari AA, Hunter E, Villinger F. Whole-body immunoPET reveals active SIV dynamics in viremic and antiretroviral therapy-treated macaques. Nat Methods. 2015 May;12(5):427-32. doi: 10.1038/nmeth.3320. Epub 2015 Mar 9.
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PMID: 22345481BACKGROUNDShingai M, Nishimura Y, Klein F, Mouquet H, Donau OK, Plishka R, Buckler-White A, Seaman M, Piatak M Jr, Lifson JD, Dimitrov DS, Nussenzweig MC, Martin MA. Antibody-mediated immunotherapy of macaques chronically infected with SHIV suppresses viraemia. Nature. 2013 Nov 14;503(7475):277-80. doi: 10.1038/nature12746. Epub 2013 Oct 30.
PMID: 24172896BACKGROUNDAroua A, Samara ET, Bochud FO, Meuli R, Verdun FR. Exposure of the Swiss population to computed tomography. BMC Med Imaging. 2013 Jul 30;13:22. doi: 10.1186/1471-2342-13-22.
PMID: 23895057BACKGROUNDHindorf C, Glatting G, Chiesa C, Linden O, Flux G; EANM Dosimetry Committee. EANM Dosimetry Committee guidelines for bone marrow and whole-body dosimetry. Eur J Nucl Med Mol Imaging. 2010 Jun;37(6):1238-50. doi: 10.1007/s00259-010-1422-4.
PMID: 20411259BACKGROUND
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Giuseppe Pantaleo, MD, PhD
University of Lausanne Hospitals
Study Design
- Study Type
- interventional
- Phase
- early phase 1
- Allocation
- NA
- Masking
- NONE
- Purpose
- BASIC SCIENCE
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Head of nuclear medicine and molecular imaging department
Study Record Dates
First Submitted
February 12, 2018
First Posted
March 16, 2018
Study Start
February 8, 2018
Primary Completion
January 28, 2020
Study Completion
January 28, 2020
Last Updated
January 29, 2020
Record last verified: 2020-01