ClinicalTrials.gg
CompletedNCT04532970BOTSUpdated Oct 27, 2026Results posted

BAPS in Botswana: The Thotloetso Trial

An interventional study of Cessation Counseling in HIV Infections, Smoking Cessation and Smoking, sponsored by Abramson Cancer Center at Penn Medicine. Completed at 1 site in Botswana. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-10-27.

Sponsored by Abramson Cancer Center at Penn Medicine · Not applicable, Interventional, and Treatment

Updated Oct 27, 2026Results postedStudy documents posted+1 moreGo to Updates ↓
Phase
Not applicable
Study type
Interventional
Enrollment
651
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

The main purpose of this research study is to compare traditional behavioral smoking cessation therapy with a different type of behavioral therapy-known as behavioral activation problem solving (BAPS)-for smoking cessation. Standard smoking cessation counseling (SC) focuses on self-monitoring, identifying smoking triggers and how to manage them, relaxation and social support for non-smoking, and relapse prevention. BAPS focuses on recognizing he feelings you are having that lead to smoking and how to overcome those feelings and focus on activities that discourage you from smoking and avoid activities that encourage you to smoke. Both counseling types include gathering information about your personal smoking patterns, your likes, dislikes, and other personal characteristics about your lifestyle.

Half of participants who enroll in the study will receive standard smoking cessation counseling (SC) and half will receive BAPS counseling. We will compare the rates of quitting smoking across the two groups at the end of treatment (study week 10), and 12 weeks after the end of treatment (study week 26)

Read the detailed description

Eligible patients will be randomized to one of the treatment arms, which will involve 5 phone-delivered counseling sessions over a 9-week treatment phase. While enrolled in this research study, you will also be asked not to use any smoking cessation treatment (including medication or behavioral therapy) other than that which is provided to you within the context of this clinical study.

The session will either be run by a study coordinator or a counselor. The study coordinator gathers information about you so we can understand whether or not the program is working. The study coordinator will be the person conducting the assessments. The counselor works with you to help you stop smoking.

Study visits are described in more detail below.

Intake

  • Complete the study informed consent with a research staff member. You will have the opportunity to have your questions answered before signing the study consent form. If you chose not to sign this form, no procedures will be performed
  • Complete a breath carbon monoxide (CO) assessment to measure your smoke exposure. Carbon monoxide is a poisonous gas that comprises less than 1% of the air we breathe and is also produced through smoking a cigarette. Your CO levels provide an indication of how much cigarette smoke you have been exposed to.
  • Complete paper and pencil assessments of your demographics, alcohol and smoking history, smoking and health behaviors, and mood.

Weeks 1,3,5,7, and 9

  • Phone-delivered counseling session (SC or BAPS) that will last between 30-60 min to help prepare you for your upcoming quit attempt (Week 2, Target Quit Day)
  • These sessions will focus on reinforcing your success and reviewing your quit plan or on reestablishing another quit date and restarting the smoking cessation process

Weeks 10 and 26

  • Assessments only, the same ones administered during the intake session
  • If you are quit (have not smoked in the past 7 days), you will be asked to come in to provide a CO breath sample
02

Conditions studied

  • HIV Infections
  • Smoking Cessation
  • Smoking

Keywords

  • Botswana
  • Smoking cessation
  • BAPS
  • Counseling
  • HIV
03

In context

HIV Infections

4,734 studies on the registry are indexed under HIV Infections; 244 are open to participants now.

This study's enrollment of 651 is above the median of 80 across 3,489 interventional studies indexed under HIV Infections.

Browse HIV Infections studies →

Lead sponsor

Abramson Cancer Center at Penn Medicine is the lead sponsor of 460 studies on the registry; 87 are open to participants now.

Of its 33 completed or terminated interventional studies of FDA-regulated products, 14 (42%) have results posted.

Counted across the registry records on this site, refreshed daily.

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 old
  • Smoking cigarettes daily for the past 30 days
  • + with HIV viral load of \<1000 copies/mL, obtained within the 6 months prior to enrollment
  • Receiving HIV care at Infectious Diseases Care Clinics (IDCCs) in and around Gaborone
  • Able to communicate in English OR Setswana and provide written
  • Planning on residing in the geographic area for at least the next 7 months

Exclusion criteria

Exclusion Criteria:

  • Cognitive deficits that impair their ability to provide
  • Current untreated and unstable diagnosis of alcohol dependence (if past use and stable for >30 days, eligible)
  • Psychosis
  • Use of chewing tobacco, snuff or snus
  • Recent , current, or planned use (next 7 months) of nicotine substitutes or smoking cessation treatments
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
651 participants (actual)

Study arms

  • Placebo comparator
    Standard

    Eligible patients will be randomized to one of the treatment arms, which will involve 5 phone-delivered counseling sessions over a 9 week treatment phase. SC will be based on the 2008 PHS Clinical Practice Guideline (Fiore et al., 2008) and on SC in our ongoing two-site trials (R01DA025078; R01CA165001) This intervention arm will begin with a "pre-quit" session designed to help participants prepare for their Target Quit Day (TDQ). The TQD session will occur at week 1. The SC arm will focus on self-monitoring, identifying smoking triggers and alternative trigger management strategies, relaxation, social support for non-smoking, relapse prevention, and homework. The pre-quit session prepares participants for their TQD by reviewing their experience with quitting, beliefs about smoking/quitting, perceived barriers to cessation, and creating a quit plan to identify smoking triggers and implement alternative strategies to manage those triggers without smoking.

    Behavioral: Cessation Counseling

  • Experimental
    BAPS

    Key components of BAPS include activity monitoring and rewarding activity scheduling, assessment of personal goals and values, assessment and altering of avoidance behavior and other maladaptive coping strategies, and contingency management. BAPS focuses on reducing stress pile-up and loss of pleasure that accompanies the cessation process and on identifying and establishing environmental/social changes to promote abstinence. BAPS addresses smoking as a behavior that prevents and restricts opportunities for contact with healthy rewarding behaviors. These changes are achieved through altering daily routines previously associated with smoking in ways that increase pleasure and mastery across life domains, reducing rumination, and increasing behavioral skills to prevent return to smoking as a means of avoiding stressors.

    Behavioral: Cessation Counseling

Interventions

  • BehavioralCessation Counseling

    Two different types of smoking cessation counseling

06

What researchers measure

Primary outcomes

  1. Smoking Cessation

    7-day point prevalence abstinence at week 26 (24-weeks post-TQD; self-reported abstinence for 7 days prior to the assessment and breath CO ≤8 ppm)

    Time frame: At week 26

07

Results

Posted Oct 27, 2026
Limitations and caveats
generalizability to a clinical program may be limited if the skills and supervision of the counselors are less intensive than in our trial. Additionally, we relied upon self-reports to confirm smoking at enrollment and thus could have enrolled non-smokers, which would have resulted in high observed rates of abstinence and no differences between arms.

Participant flow

Trained Research Assistants approached patients attending HIV clinics and asked if they currently smoke cigarettes. People who smoke were asked to complete a survey and provide identification. The participant's most recent plasma HIV RNA was ascertained from their medical record, or if unavailable, blood was obtained for assessment at a commercial laboratory. If they met study criteria, the participant was offered enrollment and written informed consent was obtained.

Participant flow — Overall Study
MilestoneBAPSStandard
Started328323
Completed273266
Not completed5557

Outcome measures

PrimarySmoking Cessation

7-day point prevalence abstinence at week 26 (24-weeks post-TQD; self-reported abstinence for 7 days prior to the assessment and breath CO ≤8 ppm)

Time frame:
At week 26
Reported as:
Count of participants · Participants
Smoking Cessation
ParticipantsBAPSStandard
Smoking Cessation122125

Adverse events

Collected over Week 26. Non-serious events are listed at a 0.1% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
BAPS0/328 (0%)11/328 (3.4%)0/328 (0%)
Standard0/323 (0%)9/323 (2.8%)0/323 (0%)
Most frequent serious events
Showing 10 of 18
Most frequent serious events
EventBAPSStandard
miscarriagePregnancy, puerperium and perinatal conditions1/3281/323
short of breath, felt faintRespiratory, thoracic and mediastinal disorders0/3281/323
broken legInjury, poisoning and procedural complications0/3281/323
pneumoniaInfections and infestations0/3281/323
flu like symptomsInfections and infestations0/3281/323
drug overdoseInjury, poisoning and procedural complications0/3281/323
suicide attempt via pillsInjury, poisoning and procedural complications0/3281/323
nausea, vomiting, diarrheaGastrointestinal disorders0/3281/323
high virologic loadInfections and infestations1/3281/323
cough blood, dizziness, nauseaGastrointestinal disorders1/3280/323

Baseline characteristics

Age, Continuous
Age, Continuous(years)BAPSStandardTotal
Median44 (38 to 49)44 (39 to 49)44 (38 to 49)
Sex: Female, Male
Sex: Female, Male(Participants)BAPSStandardTotal
Female5753110
Male271270541
Race and Ethnicity Not Collected
Race and Ethnicity Not Collected(Participants)BAPSStandardTotal
Count of participants——0
high depression
high depression(participants)BAPSStandardTotal
Number196190386
hazardous alcohol use
hazardous alcohol use(participants)BAPSStandardTotal
Number5674130
08

Study locations

1 site
  • University of Botswana
    Gaborone, Botswana
09

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: Undecided — Investigators may request access to the dataset after ethics approval by stakeholders in Botswana.

10

Timeline

1 registry update 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 May 2021 to primary completion in Dec 2025, 54 months.

Results were first posted in Oct 2026, 10 months after primary completion.

Of 393 non-industry interventional studies with no phase under HIV Infections, half reached primary completion within 28 months of starting (the median), counting those still running; a quarter within 16 and three quarters within 45. This study's 54 months is above that.

Counting every sponsor, half of 402 studies reached it within 28 months; a quarter within 16 and three quarters within 45.

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

Registered
Aug 25, 2020
First posted
Aug 31, 2020
StartActual
May 6, 2021
Primary completionActual
Dec 1, 2025
CompletionActual
Dec 1, 2025
Results first posted
Oct 27, 2026
Last update
Oct 27, 2026
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.
Results
Results posted
posted Oct 27, 2026
Primary outcomes
1 time frame changed, 1 description edited
What changed in the outcomes
  • Time frameSmoking CessationAt week 26, EOT → At week 26
  • DescriptionSmoking Cessation: how it is measured was reworded
Oct 27, 2026
Documents
Show all 1 update
  1. Oct 27, 2026
    Results posted
    Primary outcomes 1 time frame changed, 1 description edited
    What changed in the outcomes
    • Time frameSmoking CessationAt week 26, EOT → At week 26
    • DescriptionSmoking Cessation: how it is measured was reworded
    + 1 other change: verification date

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

11

Registry details

Key details

Study ID
NCT04532970
Collaborators
National Institute on Drug Abuse (NIDA), University of Botswana
Responsible party
Robert Gross (Professor of Medicine and Epidemiology Co-Director, Center for AIDS Research, Penn/CHOP/Wistar, University of Pennsylvania) — Principal investigator
First posted
Aug 31, 2020
Start date
May 6, 2021
Primary completion
Dec 1, 2025
Completion
Dec 1, 2025
Results posted
Oct 27, 2026
Last update
Oct 27, 2026

Oversight

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

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