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Completed

NCT Number: NCT05549726

SEARCH CAB LA Dynamic Choice HIV Prevention Study Extension

The overall purpose of this SEARCH CAB-LA (Cabotegravir Injectable Suspension) randomized extension study is to determine if adding the option of CAB-LA as a prevention choice using a person-centered dynamic choice HIV (human immunodeficiency virus) prevention model, with option to switch products over time, compared to the standard of care: 1) increases prevention coverage; 2) reduces HIV incident infection; and 3) increases prevention coverage during periods of self-assessed risk of HIV infection, in three settings in rural Uganda and Kenya.

In addition, this study will describe implementation of a person-centered model for dynamic choice HIV prevention including CAB-LA, using the RE-AIM (Reach, Effectiveness, Adoption, Implementation, and Maintenance) evaluation framework among persons randomized to the intervention arm.

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Key information

Conditions

HIV

Age range

15 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 4

Primary location

GPRT / SEARCH Office, Kisumu, Kenya

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About this study

The SEARCH CAB-LA (Cabotegravir Injectable Suspension) dynamic choice HIV prevention study is a randomized extension study of a person-centered Dynamic Choice HIV Prevention model for delivering existing evidence-based biomedical prevention interventions vs. standard of care (SOC). The study is conducted in 3 settings in rural Western Uganda and Kenya: antenatal (ANC) clinics, the outpatient department (primary care clinics), and in community settings. Participants previously randomized to Dynamic Choice HIV Prevention or SOC are re-consented and remain in their initial randomized arm. During the extension, the Dynamic Choice HIV Prevention intervention offers participants choices of biomedical prevention product (oral Pre-Exposure Prophylaxis (PrEP), oral post-exposure prophylaxis (PEP), or Cabotegravir Injectable Suspension (CAB-LA) on an ongoing basis with the option to switch products over time based on participant preference and perceived risk. The primary endpoint is proportion of time that is covered by a biomedical prevention product over 48 weeks; secondary endpoints are: i) incident HIV infection over 48 weeks; and, ii) proportion of time during which a participant reports risk of HIV infection that is covered by a biomedical prevention product over 48 weeks. Participants in the intervention arm only are reconsented at 48 weeks for implementation evaluation up to 96 weeks.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Inclusion criteria

for the Extension include:

  • Enrollment in a SEARCH Sapphire Dynamic prevention study (NCT04810650)
  • HIV negative at start of extension
  • Residing in study region

Additional inclusion criteria to access CAB-LA as a prevention option

  • Not pregnant or breastfeeding at time of initial CAB-LA injection
  • Participant weighs at least 35kg

Exclusion criteria

Exclusion criteria

to access CAB-LA as a prevention option:

  • Participant has Hepatitis B or chronic Hepatitis C Diagnosis
  • Participant has ALT >=5x ULN
  • Participant has clinical history of liver cirrhosis or current clinical evidence of cirrhosis
  • Previous hypersensitivity reaction to cabotegravir
  • Receiving the following co-administered drugs for which significant decreases in cabotegravir plasma concentrations may occur due to uridine diphosphate glucuronosyltransferase:

i. Anticonvulsants: Carbamazepine, oxcarbazepine, phenobarbital, phenytoin ii. Antimycobacterials: Rifampin, rifapentine

  • Participants with a current or anticipated need for chronic systemic anticoagulation or a history of known or suspected bleeding disorder, including a history of prolonged bleeding, except for the use of anticoagulation for deep vein thrombosis (DVT) prophylaxis (e.g., postoperative DVT prophylaxis) or the use of low dose acetylsalicylic acid (≤325 mg).

Treatment and study plan

Cabotegravir Injectable Suspension

Drug

CAB-LA will be one of the options for the Dynamic Choice Delivery intervention arm. CAB-LA will be a choice for at-risk adults and adolescents weighing at least 35 kg for pre-exposure prophylaxis (PrEP) to reduce the risk of sexually acquired HIV-1 infection. Single-dose vial containing 600 mg/3 mL (200 mg/mL) of cabotegravir is a white to light pink, free-flowing, extended-release injectable suspension. CAB-LA administration will occur at health facilities.

Dynamic Choice Delivery Model

Other

The Dynamic Choice Delivery Model includes integrated PrEP (including CAB-LA) and PEP services at outpatient clinics, antenatal clinics, and via VHT workers in community households. The procedures for each trial include PrEP/PEP counseling and services, choice of service location, HIV testing options, option for longer PrEP refills, provision of a clinical officer's or nurse's mobile telephone number for immediate PEP starts any day of the week, assessment of PrEP/PEP barriers and personalized actions, psychologic supports for traumatic experiences, and offer of concurrent, additional health or prevention related services.

Standard of care

Other

The standard of care differs according to country but does not routinely offer PEP or PrEP to clients seeking services, does not offer choice of service location, HIV testing option or access to medical provider mobile phone number.

Primary outcomes

  1. Biomedical Prevention Covered Time

    Time frame: 48 weeks

    Number of days participant taking biomedical prevention divided by number of days participant biomedical prevention use measured.

    Biomedical prevention includes PrEP tenofovir disoproxil fumarate/lamivudine (TDF/3TC) or cabotegravir long-acting injectable (CAB-LA) and PEP

Secondary outcomes

  1. HIV Incident Infection

    Time frame: 48 weeks

    HIV incidence rate: number of HIV incident infections divided by number at risk (HIV incidence per 100 person-years)

  2. HIV Incident Infection

    Time frame: 96 weeks

    HIV incidence rate: number of HIV incident infections divided by person time follow-up

  3. Biomedical Prevention During Periods of Self Assessed HIV Risk

    Time frame: 96 weeks

    Number of months participant taking biomedical prevention and at self-assessed risk of HIV infection divided by number of months measured and at risk self-assessed risk of HIV infection

Sponsors and collaborators

Lead sponsor

University of California, San Francisco

Other

Collaborators

  • Infectious Diseases Research Collaboration, Uganda
  • Kenya Medical Research Institute
  • Makerere University
  • National Heart, Lung, and Blood Institute (NHLBI)
  • National Institute of Allergy and Infectious Diseases (NIAID)
  • National Institute of Mental Health (NIMH)
  • National Institute on Alcohol Abuse and Alcoholism (NIAAA)
  • University of California, Berkeley
  • University of Pittsburgh
  • ViiV Healthcare

Registry information

Official study title

A Multisectoral Strategy to Address Persistent Drivers of the HIV Epidemic in East Africa: SEARCH CAB LA Dynamic Choice HIV Prevention Study Extension

Important dates

Study start
2023
Primary completion
2023
Study completion
2025
First posted
Sep 22, 2022
Registry last updated
Feb 20, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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