Human Immunodeficiency VirusEarly Phase 1NCT03468582
123I Radiolabeled 3BNC117
A Early Phase 1 study testing 123I radiolabeled 3BNC117 in people with Human Immunodeficiency Virus, run by University of Lausanne Hospitals at 1 site in Switzerland.
Trial 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. Read more about this study
- Who is it for?
- Ages 18 to 55 years
- Conditions the study is for
- Human Immunodeficiency Virus
- What is being tested?
- 123I radiolabeled 3BNC117
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 6 participants
- Where
- 1 siteSwitzerland
- Study dates
- 8 Feb 2018to 28 Jan 2020
- Phase
- Early Phase 1
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 55 years
- All sexes
- No healthy volunteers
- Adult
Who may be able to join
- 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
Who cannot join
- 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;
Show all 17Show fewer
- 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
- Creatinine ≥ 1.1 x ULN
- Coagulation parameters ≥ 1.5 x ULN
Trial locations and contacts
1 site in 1 country.
Switzerland1 site
Centre Hospitalier Universitaire Vaudois
Lausanne, Canton of Vaud, 1011
About this study
Official title: Pilot Study Using 123I Radiolabeled 3BNC117 SPECT/CT to Image HIV Reservoir in Chronically Infected HIV Patients
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.
Read the detailed description
The conventional way to control HIV infection is by use of a cocktail of drugs 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 and antiviral agents have no effect on these latently infected HIV cells.[1-9] Studies by Chomont et al. identified particular CD4 T cell subsets that serve as key cellular compartment for latent HIV-1 reservoir in blood.[6] A later study has identified memory CD4 T cells with stem-cell like properties as a minor latent HIV-1 reservoir.[7] A major part of this reservoir is in the lymphoid tissue which constitute the predominant site for lymphocytes. One recent study has identified follicular T helper cells (TFH) of lymph nodes as major CD4 T cell compartments for HIV-1 replication, production and infection.[8] Further characterisation of the different CD4 T cell population has identified a specific cell population expressing PD-1(+) as the major CD4 T cell compartment in blood and lymph nodes for production of replication competent and infectious HIV-1.[9] Thus, 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 use of currently used drugs capable of suppressing and thereby controlling the viral replication cycle in HIV infected patients.
As discussed above, even though ART can suppress virus replication and can limit disease progression, it fails to eradicate the virus, and suppression requires lifelong therapy, which may have side effects and poses a risk of the development of resistance. New approaches necessary to prevent and treat HIV-1 infection in order to restrict the epidemic and to strengthen nascent efforts in finding a cure are gradually emerging. A new generation of highly potent broadly neutralizing antibodies (bNAbs) may represent a promising approach to combating HIV-1 infection.[10] Many sites on the viral envelope can be recognized by bNAbs.
The broadly neutralising antibody 3BNC117 directed against the HIV gp120 envelope protein, can mimic human CD4 binding and can neutralize 195 out of 237 HIV-1 strains.[11] The first human phase I dose escalation study using 3BNC117, has shown to be safe and effective in transiently reducing viraemia in chronic HIV-1 infected individuals.[12] A subsequent study (ClinicalTrial.gov identifier:NCT02018510) demonstrated improved host humoral immune response in infected individuals treated with 3BNC117 antibody as compared to untreated individuals.[13] Furthermore, a phase IIa open labelled trial by the same group of researchers at Rockefeller University, NY has been carried out to evaluate the capacity of this antibody to suppress viral rebound in infected individuals during a brief treatment interruption of anti-retroviral therapy.[14] Another such trial is currently ongoing (ClinicalTrial.gov identifier: NCT02446847).
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 in vitro for gp120. By using state of the art SPECT scanner a semi-quantitative image will be obtained. In addition, the well known use of iodine-123 in clinic and the absence of chelator makes it suitable for human intervention.
No HIV imaging in human has yet been achieved, which is however fundamental to understand some key steps in the pathogenesis of the HIV-induced immunodeficiency. This research opens promising opportunities for monitoring the size of the HIV reservoir and 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.
- Conditions
- Human Immunodeficiency Virus
- Being tested
- 123I radiolabeled 3BNC117
- Medical subject headings
- Acquired Immunodeficiency Syndrome
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
123I radiolabeled 3BNC117Combination product
123I radiolabeled 3BNC117
| Study group | Role | What they receive |
|---|---|---|
| 123I radiolabeled 3BNC117 | Experimental | 123I radiolabeled 3BNC117 Receives: Combination Product: 123I radiolabeled 3BNC117 |
What is being measured
The primary outcome is the main question the study is designed to answer.
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.
Measured: 3 month
Secondary outcomes (1)
total number of lesions
Accumulation of 123I-3BNC117 in target organs and HIV reservoirs is delineated in the patients before and after ART treatment.
Measured: 3 month
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted16 Mar 2018
- Study start8 Feb 2018
- Primary completion28 Jan 2020
- Study completion28 Jan 2020
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (19)Papers the sponsor has linked to this study.
- Other trials for Human Immunodeficiency VirusStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Early Phase 1
- Primary purpose
- Basic science
- Allocation
- Not applicable
- Intervention model
- Single group
- Model description
- Monocentric, open-label and uncontrolled study
- Masking
- None (open label)
- Enrolment
- 6 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of Lausanne Hospitals
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, John O. Prior, University of Lausanne Hospitals
- Investigators
- Giuseppe Pantaleo, MD, PhD, Study director, University of Lausanne Hospitals
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03468582
- Sponsor's protocol ID
- 2017-01003
- Other IDs
- 2017
- Status last verified
- Jan 2020
- First submitted
- 12 Feb 2018
- Last updated
- 29 Jan 2020
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided: Data will not be shared with third parties having lower protection standards then Switzerland.
Publications
Chun TW, Stuyver L, Mizell SB, Ehler LA, Mican JA, Baseler M, Lloyd AL, Nowak MA, Fauci AS. Presence of an inducible HIV-1 latent reservoir during highly active antiretroviral therapy. Proc Natl Acad Sci U S A. 1997 Nov 25;94(24):13193-7. doi: 10.1073/pnas.94.24.13193.
PubMed 9371822Chun TW, Carruth L, Finzi D, Shen X, DiGiuseppe JA, Taylor H, Hermankova M, Chadwick K, Margolick J, Quinn TC, Kuo YH, Brookmeyer R, Zeiger MA, Barditch-Crovo P, Siliciano RF. Quantification of latent tissue reservoirs and total body viral load in HIV-1 infection. Nature. 1997 May 8;387(6629):183-8. doi: 10.1038/387183a0.
PubMed 9144289Finzi D, Hermankova M, Pierson T, Carruth LM, Buck C, Chaisson RE, Quinn TC, Chadwick K, Margolick J, Brookmeyer R, Gallant J, Markowitz M, Ho DD, Richman DD, Siliciano RF. Identification of a reservoir for HIV-1 in patients on highly active antiretroviral therapy. Science. 1997 Nov 14;278(5341):1295-300. doi: 10.1126/science.278.5341.1295.
PubMed 9360927Wong JK, Hezareh M, Gunthard HF, Havlir DV, Ignacio CC, Spina CA, Richman DD. Recovery of replication-competent HIV despite prolonged suppression of plasma viremia. Science. 1997 Nov 14;278(5341):1291-5. doi: 10.1126/science.278.5341.1291.
PubMed 9360926Siliciano JD, Kajdas J, Finzi D, Quinn TC, Chadwick K, Margolick JB, Kovacs C, Gange SJ, Siliciano RF. Long-term follow-up studies confirm the stability of the latent reservoir for HIV-1 in resting CD4+ T cells. Nat Med. 2003 Jun;9(6):727-8. doi: 10.1038/nm880. Epub 2003 May 18.
PubMed 12754504Chomont N, El-Far M, Ancuta P, Trautmann L, Procopio FA, Yassine-Diab B, Boucher G, Boulassel MR, Ghattas G, Brenchley JM, Schacker TW, Hill BJ, Douek DC, Routy JP, Haddad EK, Sekaly RP. HIV reservoir size and persistence are driven by T cell survival and homeostatic proliferation. Nat Med. 2009 Aug;15(8):893-900. doi: 10.1038/nm.1972. Epub 2009 Jun 21.
PubMed 19543283Buzon MJ, Sun H, Li C, Shaw A, Seiss K, Ouyang Z, Martin-Gayo E, Leng J, Henrich TJ, Li JZ, Pereyra F, Zurakowski R, Walker BD, Rosenberg ES, Yu XG, Lichterfeld M. HIV-1 persistence in CD4+ T cells with stem cell-like properties. Nat Med. 2014 Feb;20(2):139-42. doi: 10.1038/nm.3445. Epub 2014 Jan 12.
PubMed 24412925Perreau M, Savoye AL, De Crignis E, Corpataux JM, Cubas R, Haddad EK, De Leval L, Graziosi C, Pantaleo G. Follicular helper T cells serve as the major CD4 T cell compartment for HIV-1 infection, replication, and production. J Exp Med. 2013 Jan 14;210(1):143-56. doi: 10.1084/jem.20121932. Epub 2012 Dec 17.
PubMed 23254284Banga R, Procopio FA, Noto A, Pollakis G, Cavassini M, Ohmiti K, Corpataux JM, de Leval L, Pantaleo G, Perreau M. PD-1(+) and follicular helper T cells are responsible for persistent HIV-1 transcription in treated aviremic individuals. Nat Med. 2016 Jul;22(7):754-61. doi: 10.1038/nm.4113. Epub 2016 May 30.
PubMed 27239760Klein F, Mouquet H, Dosenovic P, Scheid JF, Scharf L, Nussenzweig MC. Antibodies in HIV-1 vaccine development and therapy. Science. 2013 Sep 13;341(6151):1199-204. doi: 10.1126/science.1241144.
PubMed 24031012Scheid 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.
PubMed 21764753Caskey 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.
PubMed 25855300Schoofs 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.
PubMed 27199429Scheid 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.
PubMed 27338952Santangelo 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.
PubMed 25751144
Study at a glance
From the registry record, last updated by the sponsor on 29 Jan 2020. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Pilot Study Using 123I Radiolabeled 3BNC117 SPECT/CT to Image HIV Reservoir in Chronically Infected HIV Patients
- ClinicalTrials.gov ID
- NCT03468582
- Acronym / sponsor ID
- 2017-01003
- Conditions
- Human Immunodeficiency Virus
- Phase
- Early Phase 1
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 6 participants (actual)
- Lead sponsor
- University of Lausanne HospitalsUniversity, hospital or other
- Study start
- 8 Feb 2018 (actual)
- Primary completion
- 28 Jan 2020 (actual)
- Study completion
- 28 Jan 2020 (actual)
- First posted
- 16 Mar 2018 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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.
Detailed description
The conventional way to control HIV infection is by use of a cocktail of drugs 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 and antiviral agents have no effect on these latently infected HIV cells.[1-9] Studies by Chomont et al. identified particular CD4 T cell subsets that serve as key cellular compartment for latent HIV-1 reservoir in blood.[6] A later study has identified memory CD4 T cells with stem-cell like properties as a minor latent HIV-1 reservoir.[7] A major part of this reservoir is in the lymphoid tissue which constitute the predominant site for lymphocytes. One recent study has identified follicular T helper cells (TFH) of lymph nodes as major CD4 T cell compartments for HIV-1 replication, production and infection.[8] Further characterisation of the different CD4 T cell population has identified a specific cell population expressing PD-1(+) as the major CD4 T cell compartment in blood and lymph nodes for production of replication competent and infectious HIV-1.[9] Thus, 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 use of currently used drugs capable of suppressing and thereby controlling the viral replication cycle in HIV infected patients.
As discussed above, even though ART can suppress virus replication and can limit disease progression, it fails to eradicate the virus, and suppression requires lifelong therapy, which may have side effects and poses a risk of the development of resistance. New approaches necessary to prevent and treat HIV-1 infection in order to restrict the epidemic and to strengthen nascent efforts in finding a cure are gradually emerging. A new generation of highly potent broadly neutralizing antibodies (bNAbs) may represent a promising approach to combating HIV-1 infection.[10] Many sites on the viral envelope can be recognized by bNAbs.
The broadly neutralising antibody 3BNC117 directed against the HIV gp120 envelope protein, can mimic human CD4 binding and can neutralize 195 out of 237 HIV-1 strains.[11] The first human phase I dose escalation study using 3BNC117, has shown to be safe and effective in transiently reducing viraemia in chronic HIV-1 infected individuals.[12] A subsequent study (ClinicalTrial.gov identifier:NCT02018510) demonstrated improved host humoral immune response in infected individuals treated with 3BNC117 antibody as compared to untreated individuals.[13] Furthermore, a phase IIa open labelled trial by the same group of researchers at Rockefeller University, NY has been carried out to evaluate the capacity of this antibody to suppress viral rebound in infected individuals during a brief treatment interruption of anti-retroviral therapy.[14] Another such trial is currently ongoing (ClinicalTrial.gov identifier: NCT02446847).
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 in vitro for gp120. By using state of the art SPECT scanner a semi-quantitative image will be obtained. In addition, the well known use of iodine-123 in clinic and the absence of chelator makes it suitable for human intervention.
No HIV imaging in human has yet been achieved, which is however fundamental to understand some key steps in the pathogenesis of the HIV-induced immunodeficiency. This research opens promising opportunities for monitoring the size of the HIV reservoir and 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.
Study design
- Primary purpose
- Basic science
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
- Model description
- Monocentric, open-label and uncontrolled study
| Arm | Type | Receives |
|---|---|---|
| 123I radiolabeled 3BNC117 | Experimental | Combination Product: 123I radiolabeled 3BNC117123I radiolabeled 3BNC117 |
Who may qualify
- Ages
- 18 to 55 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult
Key inclusion criteria (6 listed)
- 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
Key exclusion criteria (17 listed)
- 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;
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| 123I radiolabeled 3BNC117123I radiolabeled 3BNC117 | Combination product | 123I radiolabeled 3BNC117 |
Primary outcome
Absorbed dose per Organ mGy/MBq
Time frame: 3 month
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.
1 secondary outcome
total number of lesions
Time frame: 3 month
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 29 Jan 2020.
- Background: PubMed 9371822Chun TW, Stuyver L, Mizell SB, Ehler LA, Mican JA, Baseler M, Lloyd AL, Nowak MA, Fauci AS. Presence of an inducible HIV-1 latent reservoir during highly active antiretroviral therapy. Proc Natl Acad Sci U S A. 1997 Nov 25;94(24):13193-7. doi: 10.1073/pnas.94.24.13193.
- Background: PubMed 9144289Chun TW, Carruth L, Finzi D, Shen X, DiGiuseppe JA, Taylor H, Hermankova M, Chadwick K, Margolick J, Quinn TC, Kuo YH, Brookmeyer R, Zeiger MA, Barditch-Crovo P, Siliciano RF. Quantification of latent tissue reservoirs and total body viral load in HIV-1 infection. Nature. 1997 May 8;387(6629):183-8. doi: 10.1038/387183a0.
- Background: PubMed 9360927Finzi D, Hermankova M, Pierson T, Carruth LM, Buck C, Chaisson RE, Quinn TC, Chadwick K, Margolick J, Brookmeyer R, Gallant J, Markowitz M, Ho DD, Richman DD, Siliciano RF. Identification of a reservoir for HIV-1 in patients on highly active antiretroviral therapy. Science. 1997 Nov 14;278(5341):1295-300. doi: 10.1126/science.278.5341.1295.
- Background: PubMed 9360926Wong JK, Hezareh M, Gunthard HF, Havlir DV, Ignacio CC, Spina CA, Richman DD. Recovery of replication-competent HIV despite prolonged suppression of plasma viremia. Science. 1997 Nov 14;278(5341):1291-5. doi: 10.1126/science.278.5341.1291.
- Background: PubMed 12754504Siliciano JD, Kajdas J, Finzi D, Quinn TC, Chadwick K, Margolick JB, Kovacs C, Gange SJ, Siliciano RF. Long-term follow-up studies confirm the stability of the latent reservoir for HIV-1 in resting CD4+ T cells. Nat Med. 2003 Jun;9(6):727-8. doi: 10.1038/nm880. Epub 2003 May 18.
- Background: PubMed 19543283Chomont N, El-Far M, Ancuta P, Trautmann L, Procopio FA, Yassine-Diab B, Boucher G, Boulassel MR, Ghattas G, Brenchley JM, Schacker TW, Hill BJ, Douek DC, Routy JP, Haddad EK, Sekaly RP. HIV reservoir size and persistence are driven by T cell survival and homeostatic proliferation. Nat Med. 2009 Aug;15(8):893-900. doi: 10.1038/nm.1972. Epub 2009 Jun 21.
- Background: PubMed 24412925Buzon MJ, Sun H, Li C, Shaw A, Seiss K, Ouyang Z, Martin-Gayo E, Leng J, Henrich TJ, Li JZ, Pereyra F, Zurakowski R, Walker BD, Rosenberg ES, Yu XG, Lichterfeld M. HIV-1 persistence in CD4+ T cells with stem cell-like properties. Nat Med. 2014 Feb;20(2):139-42. doi: 10.1038/nm.3445. Epub 2014 Jan 12.
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- Individual participant dataSharing planned: Undecided. Data will not be shared with third parties having lower protection standards then Switzerland.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Giuseppe Pantaleo, MD, PhD study director
University of Lausanne Hospitals
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Early Phase 1 study testing 123I radiolabeled 3BNC117 in people with Human Immunodeficiency Virus, run by University of Lausanne Hospitals at 1 site in Switzerland.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 6 inclusion and 17 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 29 Jan 2020. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Switzerland. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Early Phase 1 (sometimes called Phase 0) studies give a very small amount of a treatment to a few people, mainly to see how the body handles it.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Absorbed dose per Organ mGy/MBq (time frame: 3 month). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT03468582, which also lists 19 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 29 Jan 2020.