Recent Publications

Long-Acting Injectable Antiretroviral Treatment Acceptability and Preferences: A Qualitative Study Among US Providers, Adults Living with HIV, and Parents of Youth Living with HIV

Date: 
3/15/19
Citation: 

Simoni JM, Beima-Sofie K, Mohamed ZH, Christodoulou J, Tapia K, Graham SM, Ho R, Collier AC. Long-Acting Injectable Antiretroviral Treatment Acceptability and Preferences: A Qualitative Study Among US Providers, Adults Living with HIV, and Parents of Youth Living with HIV. AIDS Patient Care STDS. 2019 Mar;33(3):104-111. doi: 10.1089/apc.2018.0198. PMID: 30844308; PMCID: PMC6442271.

To better understand acceptability of long-acting injectable antiretroviral treatment (LAI-ART) regimens for HIV management, we conducted seven semi-structured focus group discussions with experienced HIV care providers and persons living with HIV (PLWH) and five individual interviews with parents of children living with HIV in the western United States. Although providers were wary about a potential negative impact on consistent engagement in care, they predicted that patients, especially those with adherence challenges, would be enthusiastic about LAI options. Many PLWH, especially young adults, welcomed the option of an LAI-ART regimen; however, others feared injections and expressed concerns about possible side effects, dosing more frequent than every 2 weeks, additional costs, and lower efficacy. 

Health Topics: 
HIV
LA/ER Injectable Therapy

    The Invisible Product: Preferences for Sustained-Release, Long-Acting Pre-exposure Prophylaxis to HIV Among South African Youth

    Date: 
    3/14/19
    Citation: 

    Montgomery ET, Atujuna M, Krogstad E, et al. The Invisible Product: Preferences for Sustained-Release, Long-Acting Pre-exposure Prophylaxis to HIV Among South African Youth. J Acquir Immune Defic Syndr. 2019 Apr 15;80(5):542-550. doi: 10.1097/QAI.0000000000001960. PMID: 30865050; PMCID: PMC6426447.

    Long-acting injectable and implantable approaches aim to overcome some of the documented challenges with uptake and adherence to current HIV prevention methods. Youth are a key end-user population for these methods. We used qualitative methods to examine product attributes and preferences for current and future long-acting HIV prevention approaches.

    Health Topics: 
    HIV
    LA/ER Implantable Therapy
    LA/ER Injectable Therapy

      Ultra-long-acting removable drug delivery system for HIV treatment and prevention

      Date: 
      2/13/19
      Citation: 

      Kovarova M, Benhabbour SR, Massud I, et al. Ultra-long-acting removable drug delivery system for HIV treatment and prevention. Nat Commun. 2018;9(1):4156. Published 2018 Oct 8. doi:10.1038/s41467-018-06490-w. PMID: 30297889; PMCID: PMC6175887.

      Non-adherence to medication is an important health care problem, especially in the treatment of chronic conditions. Injectable long-acting (LA) formulations of antiretrovirals (ARVs) represent a viable alternative to improve adherence to HIV/AIDS treatment and prevention. However, the LA-ARV formulations currently in clinical trials cannot be removed after administration even if adverse events occur. Here we show an ultra-LA removable system that delivers drug for up to 9 months and can be safely removed to stop drug delivery.

      Health Topics: 
      HIV
      LA/ER Implantable Therapy

        Nanoencapsulation introduces long-acting phenomenon to tenofovir alafenamide and emtricitabine drug combination: A comparative pre-exposure prophylaxis efficacy study against HIV-1 vaginal transmission

        Date: 
        1/28/19
        Citation: 

        Mandal S, Kang G, Prathipati PK. et al. Nanoencapsulation introduces long-acting phenomenon to tenofovir alafenamide and emtricitabine drug combination: A comparative pre-exposure prophylaxis efficacy study against HIV-1 vaginal transmission. J Control Release. 2019 Jan 28;294:216-225. doi: 10.1016/j.jconrel.2018.12.027. Epub 2018 Dec 18. PMID: 30576746; PMCID: PMC6339842.

        Abstract
        Daily oral antiretroviral (ARV) drugs for pre-exposure prophylaxis (PrEP) has proven efficacy for diverse groups of high-risk individuals. However, daily dosing regimen has augmented non-adherence. These experiments comparatively investigated the long-acting (LA) PrEP potency of subcutaneous (SubQ) administrated tenofovir alafenamide (TAF) and emtricitabine (FTC) loaded nanoparticles (NPs) to solution in humanized (hu) mice.

        Health Topics: 
        HIV
        LA/ER Implantable Therapy

          Predicting drug-drug interactions between rifampicin and long-acting cabotegravir and rilpivirine using PBPK modelling

          Date: 
          12/19/18
          Citation: 

          Rajoli RKR, Curley P, Chiong J, et al. Predicting drug-drug interactions between rifampicin and long-acting cabotegravir and rilpivirine using PBPK modelling. J Infect Dis. 2019 May 5;219(11):1735-1742. doi: 10.1093/infdis/jiy726. PMID: 30566691; PMCID: PMC6500558.

          Cabotegravir and rilpivirine are two long-acting (LA) ARVs that can be administered intramuscularly (IM); their interaction with rifampicin, a first-line anti-TB agent, has not been investigated. The aim of this study was to simulate and predict DDIs between these LA ARV agents and rifampicin using PBPK modelling.

          Health Topics: 
          HIV
          LA/ER Injectable Therapy
          Tuberculosis

            Ultra-long-acting removable drug delivery system for HIV treatment and prevention

            Date: 
            11/12/18
            Citation: 

            Kovarova M, Benhabbour SR, Massud I, Spagnuolo RA, Skinner B, Baker CE, Sykes C, Mollan KR, Kashuba ADM, Garcia-Lerma JG, Mumper RJ, Garcia JV. Ultra-long-acting removable drug delivery system for HIV treatment and prevention. Nat Commun. 2018 Oct 8;9(1):4156.  doi: 10.1038/s41467-018-06490-w. PMID: 30297889; PMCID: PMC6175887.

            Abstract
            Non-adherence to medication is an important health care problem, especially in the treatment of chronic conditions. Injectable long-acting (LA) formulations of antiretrovirals (ARVs) represent a viable alternative to improve adherence to HIV/AIDS treatment and prevention. However, the LA-ARV formulations currently in clinical trials cannot be removed after administration even if adverse events occur. Here we show an ultra-LA removable system that delivers drug for up to 9 months and can be safely removed to stop drug delivery. 

            Health Topics: 
            HIV
            LA/ER Implantable Therapy

              Extended-Duration MK-8591-Eluting Implant as a Candidate for HIV Treatment and Prevention

              Date: 
              10/1/18
              Citation: 

              Barrett SE, Teller RS, Forster SP, et al. Extended-Duration MK-8591-Eluting Implant as a Candidate for HIV Treatment and Prevention. Antimicrob Agents Chemother. 2018 Sep 24;62(10). PMID: 30012772; PMCID: PMC6153840.

              Regimen adherence remains a major hurdle to the success of daily oral drug regimens for the treatment and prevention of human immunodeficiency virus (HIV) infection. Long-acting drug formulations requiring less-frequent dosing offer an opportunity to improve adherence and allow for more forgiving options with regard to missed doses. The administration of long-acting formulations in a clinical setting enables health care providers to directly track adherence.

              Health Topics: 
              HIV
              LA/ER Implantable Therapy
              Pre-exposure Prophylaxis (PrEP)

                Modelling the long-acting administration of anti-tuberculosis agents using PBPK: a proof of concept study

                Date: 
                8/17/18
                Citation: 

                Rajoli RKR, PodanyAT, Moss DM, et al. Modelling the long-acting administration of anti-tuberculosis agents using PBPK: a proof of concept study. Int J Tuberc Lung Dis. 2018 Aug 1;22(8):937-944. PMID: 29991405; PMCID: PMC6166436.

                SETTING:
                Anti-tuberculosis formulations necessitate uninterrupted treatment to cure tuberculosis (TB), but are characterised by suboptimal adherence, which jeopardises therapeutic efficacy. Long-acting injectable (LAI) formulations or implants could address these associated issues.

                OBJECTIVE:
                niazid, rifapentine, bedaquiline and delamanid—in adults for treatment for latent tuberculous infection (LTBI).

                Health Topics: 
                LA/ER Implantable Therapy
                LA/ER Injectable Therapy
                Tuberculosis

                  Long-acting injectables for tuberculosis prophylaxis and treatment: is now the time?

                  Date: 
                  8/17/18
                  Citation: 

                  Dooley KE. Long-acting injectables for tuberculosis prophylaxis and treatment: is now the time? Int J Tuberc Lung Dis. 2018 Aug 1;22(8):833-34. DOI: https://doi.org/10.5588/ijtld.18.0411.

                  Tuberculosis (TB) is a wily and enduring foe, responsible for 1 billion deaths in the last 200 years. With the introduction of antibiotics active against Mycobacterium tuberculosis in the 1950s, TB disease could finally be cured with multidrug therapy. TB drugs must still be given for months, generally via directly observed therapy, which is intrusive, expensive, and inconvenient.

                  Health Topics: 
                  Tuberculosis

                    Recent developments of nanotherapeutics for targeted and long-acting, combination HIV chemotherapy

                    Date: 
                    8/14/18
                    Citation: 

                    Gao Y, Kraft JC, Yu D, Ho RJY.  Recent developments of nanotherapeutics for targeted and long-acting, combination HIV chemotherapy. Eur J Pharm Biopharm. 2019 May;138:75-91. doi: 10.1016/j.ejpb.2018.04.014. Epub 2018 Apr 17. PMID: 29678735; PMCID: PMC6482852.

                    Combination antiretroviral therapy (cART) given orally has transformed HIV from a terminal illness to a manageable chronic disease. Yet despite the recent development of newer and more potent drugs for cART and suppression of virus in blood to undetectable levels, residual virus remains in tissues.

                    Health Topics: 
                    HIV
                    LA/ER Injectable Therapy

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