ClinicalTrials.gg
CompletedNCT03494777Updated Mar 15, 2024

Behavioral Economics Incentives to Support HIV Treatment Adherence in Sub-Saharan Africa

An interventional study of Incentivization based on high adherence and Incentivization based on timely clinic visit in HIV/AIDS, sponsored by RAND. Completed at 1 site in Uganda. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2024-03-15.

Sponsored by RAND · Not applicable, Interventional, and Treatment

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Phase
Not applicable
Study type
Interventional
Enrollment
331
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-14

Among 121 studies in Acquired Immunodeficiency Syndrome with a site in Uganda — 17 open to participants now, 24 under way, 6 of them phase 3. Acquired Immunodeficiency Syndrome · Uganda.

Enrollment
55th of 103
331 · median 380
Started
2018
with 5 others
No phase
54 of 121
11 open now
Registered
65th of 121
by date
Lead sponsor
7 of 121
RAND

Among the 121 studies in Acquired Immunodeficiency Syndrome with a site in Uganda, this one is the 55th largest by enrollment of the 103 interventional ones that give a count, is one of 6 that started in 2018, is one of 54 with no phase, and was the 65th registered.

Acquired Immunodeficiency Syndrome

3,037 studies on the registry are indexed under Acquired Immunodeficiency Syndrome; 307 are open to participants now.

Browse Acquired Immunodeficiency Syndrome studies →

Open to participants now

17 of the 121 studies in Acquired Immunodeficiency Syndrome with a site in Uganda are open now. Recruiting first, the newest first:

12 more — sign in →

All 17 open studies →

A study can be open while its sites in Uganda have not opened yet or have stopped. Only those recruiting at a site in Uganda →

Who these studies take

Of the 198 Acquired Immunodeficiency Syndrome studies recruiting now, 118 (60%) set no upper age limit and 67 (34%) stop at 75 or younger; 43 take children under 18; 68 take healthy volunteers.

This study: 18 Years and older · all sexes · no healthy volunteers.

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Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 121 studies in Acquired Immunodeficiency Syndrome with a site in Uganda, or all of them as a file.
02

Study summary

This study will implement an intervention in a two-year randomized controlled trial (RCT) to establish efficacy on viral suppression as a biological endpoint, compare the effectiveness of two different modes of implementation (including one entirely based on readily available clinic data), and investigate cost-effectiveness. Participants in the first intervention group (T1, n=110) will be eligible for small lottery prizes based on timely clinic visits, and qualify for an annual lottery conditional if demonstrating viral suppression; those in the second group (T2, n=110) will draw prizes conditional on electronically measured adherence at each clinic visit, and also participate in an annual lottery that is conditional on high adherence throughout the year. The control group (n=110) will receive the usual standard of care. Assessments will be conducted at baseline and then every six months. Primary outcomes are undetectable viral load and electronically measured adherence.

Read the detailed description

It is imperative to find ways to boost ART adherence in sub-Saharan Africa where adherence rates have been found to decline over time, and where treatment options such as second-line regimens are limited. A promising tool is the use of incentives based on insights from behavioral economics (BE) for healthy HIV-related behavior. The proposed R01 study is based on the results of the PI's R34 'Rewarding Adherence Program (RAP)' [R34 MH096609] that demonstrated feasibility and acceptability of incentives allocated by a drawing for HIV-related behaviors, and established preliminary efficacy. The current R01 study builds on these promising results with the aim to a) use viral loads as biological endpoints that were not included in the R34 for cost reasons; b) establish efficacy in a fully powered intervention as well as comparative efficacy of two different ways of implementing the incentives including one arm that has been adapted to changing clinical guidelines and can be implemented with readily available data from clinic records; and c) assess the cost effectiveness of these two implementation modes as a further input for policy-makers. The intervention is targeted at increasing the motivation of HIV clients who have been on ART for several years through the benefit and joy of prize drawings, thereby attempting to overcome the treatment 'fatigue' that can develop in the context of mundane, daily pill taking over the course of life-long treatment. Insights from behavioral economics suggest that such an intervention may be particularly effective for people with present bias (those who have a tendency to give in to short-term temptation at the cost of more long-term benefits) that was found to be prevalent among HIV clients in the R34 study. The intervention will be implemented among 330 adult clients in three groups: for the first intervention group, timely clinic attendance will constitute the eligibility criteria for participating in a prize drawing at each scheduled clinic visit; participants are also eligible for an annual prize drawing based on showing viral suppression. The second treatment group will be incentivized on demonstrated high ART adherence between clinic visits that also determine the winning chances at an annual prize drawing. The control group will receive the usual standard of care. All participants will receive MEMS caps to record adherence and assessments over 24 months (at baseline and every 6 months thereafter). The first Specific Aim will be to evaluate the effectiveness of the intervention; the second aim is to compare the relative effectiveness of the adherence-based arm and the arm directly incentivizing viral suppression that uses only data readily available in the clinic. The third Specific Aim is to perform a comparative cost-effectiveness analysis of the two intervention arms as a further policy input. If proven efficacious, the intervention as implemented in the newly adapted arm based on viral load suppression can be readily taken over by the clinic and scaled at low cost to other clinics.

In the study also 70 treatment initiating clients (in addition to the 330 treatment mature clients described above) will be recruited, but they will be excluded from the main analysis. [Note on 9/7/2019: due to funding, we will not recruit this additional sample of treatment initiating clients]

03

Conditions studied

  • HIV/AIDS

Keywords

  • ART adherence
04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • 18 years of age or older
  • at Mildmay clinic on ART for at least two years
  • adherence problems in the last six months

Note: for the 70 treatment initiators to be recruited in addition to the main sample of 330 treatment-mature clients (on which the main analysis will focus), the inclusion criteria are:

  • 18 years of age or older
  • started on ART at Mildmay clinic within the last six months

Exclusion criteria

Exclusion Criteria:

  • not able to understand the consent form and study procedures
  • language other than Luganda or English
  • not willing to consistently use the MEMS caps device for adherence measurement
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Sequential assignment
Masking
Double (Investigator, Outcomes assessor)
Enrollment
331 participants (actual)

Study arms

  • Experimental
    Adherence-based incentivization

    Participants will be eligible for prize drawings at every regular clinic visit based on high adherence as measured by MEMS-caps. In addition there will be an annual prize drawing that is conditional on showing high adherence over the course of the year. This arm will receive the intervention 'Incentivization based on high adherence' and the intervention 'Annual adherence prize drawing' and (if eligible) the intervention 'Year 2 booster'. Note: the 70 treatment initiating clients will all be assigned to this arm to receive preliminary data as to whether incentives may work for this group.

    Behavioral: Incentivization based on high adherence · Behavioral: Annual adherence prize drawing · Behavioral: Year 2 booster

  • Experimental
    Viral suppression-based incentivization

    Participants will be able to participate in prize drawings at every clinic visit where eligibility will be based on timely drug refills (that coincide with the clinic visits). Participants will also have a chance to enter a prize drawing at the end of every year if they show viral suppression. This arm will receive the intervention 'Incentivization based on timely clinic visit' and the intervention 'Annual viral suppression-based prize drawing', and (if eligible) the intervention 'Year 2 booster'.

    Behavioral: Incentivization based on timely clinic visit · Behavioral: Annual viral suppression-based prize drawing · Behavioral: Year 2 booster

  • No intervention
    Control

    This arm will receive care as usual, including the adherence support mechanisms that are part of usual care practices.

Interventions

  • BehavioralIncentivization based on high adherence

    When a participant comes for a regular clinic visit, s/he will have the MEMS data extracted, and if adherence over the previous month \>=90%, will participate in a prize drawing.

  • BehavioralIncentivization based on timely clinic visit

    When a participant comes for a regular clinic visit on the day s/he is scheduled, s/he will participate in a prize drawing.

  • BehavioralAnnual adherence prize drawing

    Participants will have a chance to take part in an annual drawing where eligibility is based on the average adherence during that year.

  • BehavioralAnnual viral suppression-based prize drawing

    Participants will have a chance to take part in an annual drawing where eligibility is based on showing viral suppression.

  • BehavioralYear 2 booster

    Those participants not showing viral suppression at month 12 will be randomized in a 1:1 fashion to receive an additional intervention component or continue receiving the same intervention arm as in Year 1.

06

What researchers measure

Primary outcomes

  1. Electronically measured adherence

    Number of ART doses taken / number of doses prescribed

    Time frame: 12 months

  2. Electronically measured adherence

    Number of ART doses taken / number of doses prescribed

    Time frame: 24 months

  3. Viral suppression

    Viral load \<=200 copies/mL

    Time frame: At month 12

  4. Viral suppression

    Viral load \<=200 copies/mL

    Time frame: At month 24

07

Study locations

1 site
  • Mildmay Uganda
    Kampala, Uganda
08

References and documents

Publications

  • Saya U, MacCarthy S, Mukasa B, Wabukala P, Lunkuse L, Wagner Z, Linnemayr S. "The one who doesn't take ART medication has no wealth at all and no purpose on Earth" - a qualitative assessment of how HIV-positive adults in Uganda understand the health and wealth-related benefits of ART. BMC Public Health. 2022 May 27;22(1):1056. doi: 10.1186/s12889-022-13461-w. PubMed 35619119 ↗
  • MacCarthy S, Mendoza-Graf A, Jennings Mayo-Wilson L, Wagner Z, Saya U, Chemusto H, Mukasa B, Linnemayr S. A qualitative exploration of health-related present bias among HIV-positive adults in Uganda. AIDS Care. 2023 Jun;35(6):883-891. doi: 10.1080/09540121.2021.2004298. Epub 2021 Nov 21. PubMed 34802344 ↗
  • Wagner Z, Mukasa B, Nakakande J, Stecher C, Saya U, Linnemayr S. Impact of the COVID-19 Pandemic on Use of HIV Care, Antiretroviral Therapy Adherence, and Viral Suppression: An Observational Cohort Study From Uganda. J Acquir Immune Defic Syndr. 2021 Dec 15;88(5):448-456. doi: 10.1097/QAI.0000000000002811. PubMed 34757973 ↗
  • Jennings Mayo-Wilson L, Devoto B, Coleman J, Mukasa B, Shelton A, MacCarthy S, Saya U, Chemusto H, Linnemayr S. Habit formation in support of antiretroviral medication adherence in clinic-enrolled HIV-infected adults: a qualitative assessment using free-listing and unstructured interviewing in Kampala, Uganda. AIDS Res Ther. 2020 Jun 8;17(1):30. doi: 10.1186/s12981-020-00283-2. PubMed 32513192 ↗
  • Linnemayr S, Stecher C, Saya U, MacCarthy S, Wagner Z, Jennings L, Mukasa B. Behavioral Economics Incentives to Support HIV Treatment Adherence (BEST): Protocol for a randomized controlled trial in Uganda. Trials. 2020 Jan 3;21(1):9. doi: 10.1186/s13063-019-3795-4. PubMed 31900193 ↗

Individual participant data

Plan to share: Undecided

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Apr 2018 to primary completion in Oct 2023, 65 months.

Of 642 non-industry interventional studies with no phase under Acquired Immunodeficiency Syndrome, half reached primary completion within 30 months of starting (the median), counting those still running; a quarter within 17 and three quarters within 45. This study's 65 months is above that.

Counting every sponsor, half of 648 studies reached it within 29 months; a quarter within 17 and three quarters within 45.

How these figures are worked out, and which studies are left out of them.

Registered
Apr 4, 2018
First posted
Apr 11, 2018
StartActual
Apr 11, 2018
Primary completionActual
Oct 2, 2023
CompletionActual
Oct 2, 2023
Last update
Mar 15, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Mar 15, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03494777
Lead sponsor
RAND
Collaborators
National Institute of Mental Health (NIMH), Mildmay Uganda Limited
Responsible party
Sponsor
First posted
Apr 11, 2018
Start date
Apr 11, 2018
Primary completion
Oct 2, 2023
Completion
Oct 2, 2023
Last update
Mar 15, 2024

Study contacts

Sebastian Linnemayr, PhD
principal investigator · RAND

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Mar 2024. You cannot join it, but the record below documents what was studied.

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