ClinicalTrials.gg
CompletedNCT03315013SLATEIIUpdated Jan 22, 2021

Revised Simplified Algorithm for Treatment Eligibility for HIV (SLATEII)

An interventional study of SLATE II in HIV/AIDS and Antiretroviral Therapy, sponsored by Boston University. Completed at 1 site in South Africa. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2021-01-22.

Sponsored by Boston University · Not applicable, Interventional, and Treatment

Help build ClinicalTrials.gg — short surveys, remote interviews or testing, in your language. Take part →

Phase
Not applicable
Study type
Interventional
Enrollment
600
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 10 studies in Acquired Immunodeficiency Syndrome by Boston University — 1 open to participants now, 1 under way, none of them phase 3. Acquired Immunodeficiency Syndrome · Boston University.

Started
2018
the only one that year
No phase
7 of 10
1 open now
Registered
8th of 10
by date

Among the 10 studies in Acquired Immunodeficiency Syndrome by Boston University, this one is the only one that started in 2018, is one of 7 with no phase, and was the 8th 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

1 of the 10 studies in Acquired Immunodeficiency Syndrome by Boston University is open now, in 1 country. Recruiting first, the newest first:

By country, each count listing its studies:

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.

The full table on the hub →

This tab as a report to print or save as PDF → With an account.

Was this useful?
Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 10 studies in Acquired Immunodeficiency Syndrome by Boston University, or all of them as a file.
02

Study summary

In its 2017 revision of the global guidelines for HIV care and treatment, the World Health Organization called for rapid or same-day initiation of antiretroviral treatment (ART) for eligible patients testing positive for HIV. In sub-Saharan Africa, where most HIV patients are located, studies continue to document high losses of treatment-eligible patients from care before they receive their first dose of antiretroviral medications (ARVs). Among facility-level reasons for these losses are treatment initiation protocols that require multiple clinic visits and long waiting times before a patient who tests positive for HIV is dispensed an initial supply of medications. Simpler, more efficient, accelerated algorithms for ART initiation are needed, including strategies for rapid initiation in patients with symptoms of tuberculosis, most of whom do not have active TB.

In July 2017, the original SLATE study (SLATE I) completed enrollment in South Africa. One of the most striking findings of the study so far is the large proportion of patients who "screened out" of the SLATE algorithm and were referred for additional services rather than started on ART immediately. Among 298 patients assigned to the intervention arm and evaluated for immediate treatment eligibility under the SLATE algorithm, 149 (50%) screened out, two thirds of these (100/149) due to symptoms of TB. The vast majority of the TB suspects (93/100, 93%) tested negative for active TB.

The SLATE II study will revise the original SLATE algorithm to provide a pathway for immediate ART initiation for some patients with TB symptoms. Under SLATE II, patients with TB symptoms will be clinically evaluated by the study nurse and will receive a urine point of care LAM (lipoarabinomannan antigen of mycobacteria) test. Those with milder symptoms and a negative LAM test will be offered immediate ART. Those with more serious symptoms and/or a positive LAM test will be asked to return the next day to receive TB test results and either immediate ART or TB treatment. All intervention arm patients (symptomatic and asymptomatic) will be asked for a sputum sample for Xpert testing, and positives will be contacted on the next day. The SLATE II algorithm will also incorporate other improvements identified from SLATE I.

Read the detailed description

SLATE II is be a pragmatic, individually randomized evaluation to determine the effectiveness of the revised algorithm in increasing ART initiation, compared to standard care, among non-pregnant adult patients. Six hundred HIV-infected adult patients not yet on ART will be enrolled during a routine clinic visit and randomized to receive the intervention or standard care. Patients in the intervention arm will be administered a revised version of the SLATE screens, including the TB add-on; those found eligible under the algorithm will be offered immediate treatment initiation, while those who are not eligible will be referred for standard clinic care. Patients in the standard arm will be referred for ART initiation under standard clinic procedures. All care after the initial visit will be by the clinic under standard care. Primary outcomes will be ART initiation within 7 days of study enrollment and viral suppression within 8 months of study enrollment.

The study is being conducted at three healthcare facilities (clinics) in South Africa. In September 2017, the South African National Department of Health instructed all clinics to offer same-day ART initiation to eligible patients but provided little guidance on determining eligibility. SLATE II will help to create such guidance. If successful, it will improve on the SLATE approach to collecting and interpreting a minimum set of patient data that will avoid delaying treatment initiation for the majority of patients who are eligible for immediate ART, while deferring initiation in the minority who should not start immediately.

03

Conditions studied

  • HIV/AIDS
  • Antiretroviral Therapy

Keywords

  • Antiretroviral therapy initiation
  • Sub-Sahara Africa
  • ART
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

  • Adult patients (>18 years) (initiating children and adolescents on ART is likely to require additional information and adherence support, making the SLATE algorithm less applicable to pediatric populations)
  • Confirmed -positive test result at any time (may have been diagnosed previously)
  • Self-report that patient is not currently on ART and has not been prescribed ART in the past three months
  • Presented at the study clinic for any HIV-related reason or other reason that led to referral for HIV testing or care

Exclusion criteria

Exclusion Criteria:

  • Pregnant (pregnancy is an exclusion criterion because treatment guidelines for pregnant women differ from those for non-pregnant adults; most pregnant women are diagnosed with and initiated on ART in antenatal clinics, not general adult HIV clinics)
  • Not intending to return to this clinic for further HIV care in the coming year (i.e. intends to seek further care somewhere else)
  • Not willing to be traced by phone or in person for follow-up care if test results received after the enrollment visit indicate that further care is needed
  • Not physically, mentally, or emotionally able to participate in the study, in the opinion of the investigators or study staff
  • Not willing or able to provide written to participate in the study
  • Previously enrolled in the same study or the SLATE I study
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
600 participants (actual)

Study arms

  • Experimental
    SLATE

    The SLATE arm will be administered the SLATE II algorithm and initiated on ART immediately if eligible under the algorithm. Patients not eligible under the algorithm will be referred for standard care.

    Procedure: SLATE II

  • No intervention
    Standard

    The standard arm will be referred to standard care after study enrollment.

Interventions

  • ProcedureSLATE II

    The SLATE II algorithm is a series of questions and procedures that allow a study clinician to determine if antiretroviral therapy for HIV can be started immediately (same-day) or if additional care or services are needed before ART initiation.

    Also known as: Revised Simplified Algorithm for Treatment Eligibility

06

What researchers measure

Primary outcomes

  1. Proportion of patients initiated on ART

    % of enrolled patients initiated onto ART within one week of study enrollment, which may occur at HIV diagnosis or at a pre-ART follow-up visit

    Time frame: 7 days after study enrollment

  2. Proportion of patients initiated on ART and alive, in care, and retained

    Proportion of enrolled patients initiated on ART within 28 days of study enrollment and retained in care 8 months after study enrollment, as indicated by a clinic visit no more than 7 months after ART initiation

    Time frame: 8 months after study enrollment

Secondary outcomes

  1. Proportion of TB suspects initiated on ART within 14 days of study enrollment

    Proportion of TB suspects initiated on ART within 14 days of study enrollment

    Time frame: 14 days after study enrollment

  2. Proportions of patients initiated on ART within 1, 14, and 28 days of study enrollment

    Proportions of patients initiated on ART within 1, 14, and 28 days of study enrollment

    Time frame: 28 days after study enrollment

  3. Proportions of all patients and of TB suspects who initiate ART and are virally suppressed eight months after having an HIV test or enrolling in HIV care

    Viral suppression stratified by TB symptom status at baseline

    Time frame: 8 months after study enrollment

  4. Proportions of all patients and of TB suspects who initiate ART and are alive, in care, and retained on ART 14 months after having an HIV test or enrolling in HIV care

    Retention 12 months after enrollment, allowing 1 month for initiation and 1 month for making and recording data from 12-month visit.

    Time frame: 14 months after study enrollment

  5. Proportions of HIV-positive patients presenting at study clinics and not yet on ART who are eligible and ineligible for immediate initiation using SLATE algorithm criteria

    Patients who screen in and screen out of algorithm in intervention arm

    Time frame: 1 day after study enrollment

  6. Reasons for ineligibility for immediate initiation

    Reasons for ineligibility for immediate initiation, among those found ineligible in the intervention arm

    Time frame: 1 day after study enrollment

  7. Median time to ART initiation (days) for each arm

    Median and IQR time to ART initiation (days) for each arm

    Time frame: 28 days after study enrollment

  8. Adverse events

    Frequency and types of adverse events reported in medical records after ART initiation for each follow up period

    Time frame: 1, 7, 14, and 28 days after enrollment; 8 and 14 months after enrollment

  9. Patient preferences

    Patient self-reported preferences on the speed and timing of ART initiation, from questionnaires

    Time frame: 1 day after enrollment

  10. LAM test results

    Proportion of symptomatic patients who test positive for TB using the LAM test

    Time frame: 1 day after enrollment

  11. Xpert test results

    Proportions of symptomatic and asymptomatic patients who test positive for TB using Xpert MTB/RIF, among those able to produce a sputum sample

    Time frame: 1 week after enrollment

  12. Costs to patients

    Costs to patients of ART initiation under standard and intervention procedures

    Time frame: 14 months after study enrollment (end of followup)

  13. Costs to providers

    Costs to providers of ART initiation under standard and intervention procedures

    Time frame: 14 months after study enrollment (end of followup)

  14. Differences from SLATE I

    Comparison of results of SLATE II study to SLATE I study

    Time frame: 14 months after study enrollment (end of followup)

07

Study locations

1 site
  • Health Economics and Epidemiology Research Office
    Johannesburg, Gauteng, South Africa
08

References and documents

Publications

  • Brennan AT, Maskew M, Larson BA, Tsikhutsu I, Bii M, Vezi L, Fox MP, Venter WD, Ehrenkranz P, Rosen S. Who is seeking antiretroviral treatment for HIV now? Characteristics of patients presenting in Kenya and South Africa in 2017-2018. J Int AIDS Soc. 2019 Sep;22(9):e25358. doi: 10.1002/jia2.25358. PubMed 31518058 ↗
  • Brennan A, Maskew M, Larson BA, Tsikhutsu I, Bii M, Vezi L, Fox M, Venter WDF, Ehrenkranz PD, Rosen S. Prevalence of TB symptoms, diagnosis and treatment among people living with HIV (PLHIV) not on ART presenting at outpatient clinics in South Africa and Kenya: baseline results from a clinical trial. BMJ Open. 2020 Sep 6;10(9):e035794. doi: 10.1136/bmjopen-2019-035794. PubMed 32895266 ↗
  • Scott NA, Maskew M, Fong RM, Olson IE, Brennan AT, Fox MP, Vezi L, Ehrenkranz PD, Rosen S. Patient Perspectives of Quality of the Same-Day Antiretroviral Therapy Initiation Process in Gauteng Province, South Africa: Qualitative Dominant Mixed-Methods Analysis of the SLATE II Trial. Patient. 2021 Mar;14(2):175-186. doi: 10.1007/s40271-020-00437-4. PubMed 32909218 ↗
  • Rosen S, Maskew M, Brennan AT, Fox MP, Vezi L, Ehrenkranz PD, Venter WDF. Improved simplified clinical algorithm for identifying patients eligible for immediate initiation of antiretroviral therapy for HIV (SLATE II): protocol for a randomized evaluation. Trials. 2018 Oct 11;19(1):548. doi: 10.1186/s13063-018-2928-5. PubMed 30305142 ↗
  • Maskew M, Brennan AT, Fox MP, Vezi L, Venter WDF, Ehrenkranz P, Rosen S. A clinical algorithm for same-day HIV treatment initiation in settings with high TB symptom prevalence in South Africa: The SLATE II individually randomized clinical trial. PLoS Med. 2020 Aug 27;17(8):e1003226. doi: 10.1371/journal.pmed.1003226. eCollection 2020 Aug. PubMed 32853271 ↗
  • Maskew M, Brennan AT, Venter WDF, Fox MP, Vezi L, Rosen S. Retention in care and viral suppression after same-day ART initiation: One-year outcomes of the SLATE I and II individually randomized clinical trials in South Africa. J Int AIDS Soc. 2021 Oct;24(10):e25825. doi: 10.1002/jia2.25825. PubMed 34612601 ↗

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: Yes — After protocol closure, dis-identified data generated by the study will be shared on Dryad. Data from patients' medical records do not belong to the study and cannot be shared but may be available on request from the study sites.

Supporting information: Study protocol, Informed consent form

Time frame: After protocol closure, which will occur approximately one year after all study outcomes have been reached.

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 Mar 2018 to primary completion in Aug 2019, 17 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 17 months is below 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
Oct 6, 2017
First posted
Oct 19, 2017
StartActual
Mar 14, 2018
Primary completionActual
Aug 19, 2019
CompletionActual
Dec 31, 2020
Last update
Jan 22, 2021
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 Jan 22, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03315013
Lead sponsor
Boston University
Collaborators
University of Witwatersrand, South Africa, Bill and Melinda Gates Foundation
Responsible party
Sydney Rosen (Professor, BUSPH, Boston University) — Principal investigator
First posted
Oct 19, 2017
Start date
Mar 14, 2018
Primary completion
Aug 19, 2019
Completion
Dec 31, 2020
Last update
Jan 22, 2021

Study contacts

Sydney B Rosen
principal investigator · Boston University

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 Jan 2021. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion