Protocol No: ECCT/22/10/01 Date of Protocol: 21-03-2021

Study Title:

Enhancing PrEP outcomes among Kenyan adolescent girls and young women with a novel pharmacy-based PrEP delivery platform

 

Study Objectives:

Our overarching aim is to determine the effectiveness of utilizing nurse navigators at retail pharmacies to enhance the use of pre-exposure prophylaxis (PrEP) use for HIV prevention among adolescent girls and young women. We propose to determine the effect of nurse navigators vs. standard of care (i.e., pharmacy provider-delivered PrEP), in a 2-armed cluster randomized controlled trial (RCT). 

 

The primary objectives of this evaluation are to:

 

  1. To determine the effect of nurse-navigators on PrEP initiation, persistence, and adherence among HIV-negative AGYW (age 14-24 years) seeking contraception by comparing pharmacy-based PrEP delivery models with and without nurse-navigators at 20 retail pharmacies in Kisumu, Kenya.
    1. Secondary objectives:
      1. To compare PrEP selection (pills vs. DPV-VR), STI incidence and adherence cofactors (e.g. depression, relationship climate) by randomization arm.
      2. To describe HIV incidence, quality of care measures and long-acting reversible contraceptive use.
  2. To evaluate implementation outcomes (acceptability, feasibility, and client satisfaction) of incorporating nurse-navigators and DPV-VR into pharmacy-based PrEP delivery for AGYW by conducting a qualitative evaluation at the individual, provider, and system-level to inform scale up guided by the Proctor model.1
  3. To estimate the costs and cost-effectiveness of implementing pharmacy-based PrEP delivery with nurse-navigators compared to standard pharmacy-based PrEP by conducting micro-costing and time-and-motion observation to estimate costs.

 

Laymans Summary:

LAY SUMMARY

Pre- exposure prophylaxis (PrEP) is a HIV prevention method available in both a daily oral form (tenofovir) or a monthly vaginal ring (dapivirine), PrEP works when used as recommended. Increasing locations where PrEP is dispensed may make it easier for adolescent girls and young women (AGYW) to access PrEP. To date, PrEP is available at public health clinics, yet there are major barriers to accessing PrEP at clinics which includes stigma, long waiting times, staffing costs, and healthcare providers’ unfamiliarity with PrEP. In Kenya, people often go to retail pharmacies first access to treatment of urgent and prolonged conditions. AGYW frequently obtain contraception at pharmacies without attending a health facility. Potential PrEP users may prefer pharmacy-delivered PrEP due to convenience and privacy. Additionally, the presence of nurses to provide tailored counselling on PrEP use and related topics in pharmacies can facilitate PrEP use. We will offer PrEP to AGYW  at pharmacies with and without nurses to assess if nurse-navigators effect PrEP use and determine the costs of PrEP delivery in pharmacies.

 

Abstract of Study:

ABSTRACT 

HIV incidence rates remain unacceptably high for adolescent girls and young women (AGYW). Pre-exposure prophylaxis (PrEP) HIV prevention tools are promising with tenofovir (TFV)-based daily oral PrEP and the dapivirine vaginal ring (DPV-VR) recommended by WHO for cisgender women at-risk for HIV. Kenya is a leader for PrEP delivery in Africa and efforts are ongoing to increase PrEP access with AGYW as a priority group. Our team pioneered integrated PrEP delivery in family planning (FP) clinics in Kenya; yet 40% of Kenyan women access contraception without interfacing with facilities, including at retail pharmacies, and would be missed by facility-based PrEP platforms. Retail pharmacies can increase options for reaching at-risk individuals with PrEP and efforts are underway to define pathways for pharmacy-delivered PrEP in Kenya. We adapted our FP clinic-based PrEP model and piloted PrEP delivery facilitated by nurse-navigators for AGYW seeking contraception at pharmacies. AGYW offered daily oral PrEP frequently initiated, planned to continue use, and were willing to pay for PrEP at pharmacies. Pill burden was a common reason for declining oral PrEP and could be addressed by offering DPV-VR. Through close collaboration with the Kenya Ministry of Health both, national- and county-level, we propose a Cluster Random Controlled Trial( cRCT() at 20 pharmacies in Kisumu, Kenya-a region with an HIV prevalence of up to 28% among women -to test the effectiveness of utilizing nurse-navigators at retail pharmacies to enhance AGYW PrEP use. We will expand on our successful pilot to offer both daily oral PrEP and the DPV-VR and prospectively ascertain PrEP outcomes (initiation, persistence, adherence) among AGYW. This effectiveness-implementation hybrid RCT is designed to expedite translation into practice by evaluating clinical effectiveness alongside implementation and cost outcomes. We hypothesize that combining nurse-navigators with pharmacy-based PrEP will provide a cost-effective strategy for delivering novel HIV prevention tools to AGYW in HIV high-burden settings. Aim 1 will determine the effect of nurse-navigators on PrEP initiation, persistence, and adherence among AGYW seeking contraception within a pharmacy-based PrEP delivery model through a 2-arm cluster RCT among HIV-negative AGYW at 20 retail pharmacies in Kisumu, Kenya. AGYW seeking contraception will be offered PrEP and self-select daily oral PrEP or the DPV-VR. Primary outcomes will be proportion of AGYW accessing contraception that initiate PrEP, persist with use at 6 months, and adhere (quantified by TFV or DPV hair levels). Secondary outcomes will include PrEP selection (PrEP pills vs. DPV-VR), STI incidence, and adherence cofactors. Aim 2 will identify potential barriers and facilitators to acceptability, feasibility, and sustainability of nurse-navigators and DPV-VR delivery for AGYW accessing PrEP at retail pharmacies through a qualitative evaluation guided by Proctor et al. Aim 3 will estimate the cost-effectiveness of implementing pharmacy-based PrEP delivery with nurse-navigators. This will be the first study aiming to improve PrEP access for AGYW using a pharmacy-based model and will prime pharmacies to deliver novel PrEP agents in the pipeline.