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Project Khanya: results from a pilot randomized type 1 hybrid effectiveness-implementation trial of a peer-delivered behavioural intervention for ART adherence and substance use in HIV care in South Africa.
J Int AIDS Soc. 2021 06; 24 Suppl 2:e25720.JI

Abstract

INTRODUCTION

South Africa (SA) has the highest number of people living with HIV (PLWH) globally, and a significant burden of alcohol and other drug use (AOD). Although integrating AOD treatment into HIV care may improve antiretroviral therapy (ART) adherence, this is not typically routine practice in SA or other low-resource settings. Identifying interventions that are feasible and acceptable for implementation is critical to improve HIV and AOD outcomes.

METHODS

A pilot randomized hybrid type 1 effectiveness-implementation trial (N = 61) was conducted to evaluate the feasibility and acceptability of Khanya, a task-shared, peer-delivered behavioral intervention to improve ART adherence and reduce AOD in HIV care in SA. Khanya was compared to enhanced treatment as usual (ETAU), a facilitated referral to on-site AOD treatment. Implementation outcomes, defined by Proctor's model, included feasibility, acceptability, appropriateness and fidelity. Primary pilot effectiveness outcomes were ART adherence at post-treatment (three months) measured via real-time electronic adherence monitoring, and AOD measured using biomarker and self-report assessments over six months. Data collection was conducted from August 2018 to April 2020.

RESULTS AND DISCUSSION

Ninety-one percent of participants (n = 56) were retained at six months. The intervention was highly feasible, acceptable, appropriate and delivered with fidelity (>90% of components delivered as intended by the peer). There was a significant treatment-by-time interaction for ART adherence (estimate = -0.287 [95% CI = -0.507, -0.066]), revealing a 6.4 percentage point increase in ART adherence in Khanya, and a 22.3 percentage point decline in ETAU. Both groups evidenced significant reductions in alcohol use measured using phosphatidylethanol (PEth) (F(2,101) = 4.16, p = 0.01), significantly decreased likelihood of self-reported moderate or severe AOD (F(2,104) = 7.02, p = 0.001), and significant declines in alcohol use quantity on the timeline follow-back (F(2,102) = 21.53, p < 0.001). Among individuals using drugs and alcohol, there was a greater reduction in alcohol use quantity in Khanya compared to ETAU over six months (F(2,31) = 3.28, p = 0.05).

CONCLUSIONS

Results of this pilot trial provide initial evidence of the feasibility and acceptability of the Khanya intervention for improving adherence in an underserved group at high risk for ongoing ART non-adherence and HIV transmission. Implementation results suggest that peers may be a potential strategy to extend task-sharing models for behavioral health in resource-limited, global settings.

Authors+Show Affiliations

Department of Psychology, University of Maryland, College Park, MD, USA.HIV Mental Health Research Unit, Division of Neuropsychiatry, Department of Psychiatry and Mental Health, Groote Schuur Hospital, Cape Town, South Africa.Department of Psychology, University of Maryland, College Park, MD, USA.HIV Mental Health Research Unit, Division of Neuropsychiatry, Department of Psychiatry and Mental Health, Groote Schuur Hospital, Cape Town, South Africa.Department of Psychology, University of Maryland, College Park, MD, USA.Department of Psychology, University of Maryland, College Park, MD, USA.Alcohol, Tobacco and Other Drug Research Unit, South African Medical Research Council, Division of Addiction Psychiatry, Department of Psychiatry and Mental Health, University of Cape Town, Cape Town, South Africa.HIV Mental Health Research Unit, Division of Neuropsychiatry, Department of Psychiatry and Mental Health, Groote Schuur Hospital, Cape Town, South Africa.Department of Psychiatry, Massachusetts General Hospital/Harvard Medical School, Boston, MA, USA.Department of Psychology, University of Miami, Miami, FL, USA.

Pub Type(s)

Journal Article
Randomized Controlled Trial
Research Support, N.I.H., Extramural

Language

eng

PubMed ID

34164935

Citation

Magidson, Jessica F., et al. "Project Khanya: Results From a Pilot Randomized Type 1 Hybrid Effectiveness-implementation Trial of a Peer-delivered Behavioural Intervention for ART Adherence and Substance Use in HIV Care in South Africa." Journal of the International AIDS Society, vol. 24 Suppl 2, 2021, pp. e25720.
Magidson JF, Joska JA, Belus JM, et al. Project Khanya: results from a pilot randomized type 1 hybrid effectiveness-implementation trial of a peer-delivered behavioural intervention for ART adherence and substance use in HIV care in South Africa. J Int AIDS Soc. 2021;24 Suppl 2:e25720.
Magidson, J. F., Joska, J. A., Belus, J. M., Andersen, L. S., Regenauer, K. S., Rose, A. L., Myers, B., Majokweni, S., O'Cleirigh, C., & Safren, S. A. (2021). Project Khanya: results from a pilot randomized type 1 hybrid effectiveness-implementation trial of a peer-delivered behavioural intervention for ART adherence and substance use in HIV care in South Africa. Journal of the International AIDS Society, 24 Suppl 2, e25720. https://doi.org/10.1002/jia2.25720
Magidson JF, et al. Project Khanya: Results From a Pilot Randomized Type 1 Hybrid Effectiveness-implementation Trial of a Peer-delivered Behavioural Intervention for ART Adherence and Substance Use in HIV Care in South Africa. J Int AIDS Soc. 2021;24 Suppl 2:e25720. PubMed PMID: 34164935.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Project Khanya: results from a pilot randomized type 1 hybrid effectiveness-implementation trial of a peer-delivered behavioural intervention for ART adherence and substance use in HIV care in South Africa. AU - Magidson,Jessica F, AU - Joska,John A, AU - Belus,Jennifer M, AU - Andersen,Lena S, AU - Regenauer,Kristen S, AU - Rose,Alexandra L, AU - Myers,Bronwyn, AU - Majokweni,Sybil, AU - O'Cleirigh,Conall, AU - Safren,Steven A, PY - 2021/03/31/revised PY - 2020/10/07/received PY - 2021/04/08/accepted PY - 2021/6/24/entrez PY - 2021/6/25/pubmed PY - 2021/10/15/medline KW - HIV KW - South Africa KW - antiretroviral therapy adherence KW - global mental health KW - implementation science KW - substance use SP - e25720 EP - e25720 JF - Journal of the International AIDS Society JO - J Int AIDS Soc VL - 24 Suppl 2 N2 - INTRODUCTION: South Africa (SA) has the highest number of people living with HIV (PLWH) globally, and a significant burden of alcohol and other drug use (AOD). Although integrating AOD treatment into HIV care may improve antiretroviral therapy (ART) adherence, this is not typically routine practice in SA or other low-resource settings. Identifying interventions that are feasible and acceptable for implementation is critical to improve HIV and AOD outcomes. METHODS: A pilot randomized hybrid type 1 effectiveness-implementation trial (N = 61) was conducted to evaluate the feasibility and acceptability of Khanya, a task-shared, peer-delivered behavioral intervention to improve ART adherence and reduce AOD in HIV care in SA. Khanya was compared to enhanced treatment as usual (ETAU), a facilitated referral to on-site AOD treatment. Implementation outcomes, defined by Proctor's model, included feasibility, acceptability, appropriateness and fidelity. Primary pilot effectiveness outcomes were ART adherence at post-treatment (three months) measured via real-time electronic adherence monitoring, and AOD measured using biomarker and self-report assessments over six months. Data collection was conducted from August 2018 to April 2020. RESULTS AND DISCUSSION: Ninety-one percent of participants (n = 56) were retained at six months. The intervention was highly feasible, acceptable, appropriate and delivered with fidelity (>90% of components delivered as intended by the peer). There was a significant treatment-by-time interaction for ART adherence (estimate = -0.287 [95% CI = -0.507, -0.066]), revealing a 6.4 percentage point increase in ART adherence in Khanya, and a 22.3 percentage point decline in ETAU. Both groups evidenced significant reductions in alcohol use measured using phosphatidylethanol (PEth) (F(2,101) = 4.16, p = 0.01), significantly decreased likelihood of self-reported moderate or severe AOD (F(2,104) = 7.02, p = 0.001), and significant declines in alcohol use quantity on the timeline follow-back (F(2,102) = 21.53, p < 0.001). Among individuals using drugs and alcohol, there was a greater reduction in alcohol use quantity in Khanya compared to ETAU over six months (F(2,31) = 3.28, p = 0.05). CONCLUSIONS: Results of this pilot trial provide initial evidence of the feasibility and acceptability of the Khanya intervention for improving adherence in an underserved group at high risk for ongoing ART non-adherence and HIV transmission. Implementation results suggest that peers may be a potential strategy to extend task-sharing models for behavioral health in resource-limited, global settings. SN - 1758-2652 UR - https://www.unboundmedicine.com/medline/citation/34164935/Project_Khanya:_results_from_a_pilot_randomized_type_1_hybrid_effectiveness_implementation_trial_of_a_peer_delivered_behavioural_intervention_for_ART_adherence_and_substance_use_in_HIV_care_in_South_Africa_ DB - PRIME DP - Unbound Medicine ER -