This trial builds on our multidisciplinary experience in pediatric sickle cell disease (SCD) care, mHealth platforms, and community-based research in Uganda to develop, validate, and trial a novel SCD screening information management and communication system (SCD SIMCS) that enables community-wide point-of-care (POC) SCD screening and care coordination. The SCD SIMCS network will be built on existing population-wide digital infrastructure and a Tier2 data center at the Uganda Ministry of Health (MOH) hub. The network will consist of 3 components: (1) ≥2G cell phone (patients) for short message service (SMS); (2) ≥3G cell phone (providers) for a custom Application (App) that facilitates SCD testing, patient education, and care coordination; (3) Tier2 data center (MOH hub) to receive, curate and transmit data and information in the SCD SIMCS network. The network will involve families, primary care providers (PCP), pediatric hematology specialists, and a national MOH hub for SCD screening. The purpose is to improve outcomes of children with SCD through early detection and linkage into care.
SCD is a group of inherited chronic red blood cell (RBC) disorders characterized by chronic hemolytic anemia, pain crises, and end-organ damage. SCD affects about 15 million individuals in SSA, and about 340,000 children are born with the disease annually. Only 10% of these children reach adolescence in SSA compared to almost 90% of patients that reach adulthood in high-income countries.3 Although SCD contributes about 16% of under-5 mortality in SSA, it is under-recognized because most children die of the disease without a diagnosis.
Early detection through screening is the foremost strategy in reducing SCD morbidity and mortality because it is a pre-requisite for prevention of complications using interventions such as hydroxyurea, vaccination, and health education.24 Whereas several assays for SCD screening exist, attempts to introduce them in SSA at a large scale have been futile because of the unaffordable logistics and complex workflows involved in traditional designs of infant screening programs. Transportation of samples and maintenance of sample-patient ID, transmission of test results to families and providers, pre- and post-screening counseling, referral for treatment for those diagnosed with SCD, and program evaluation are all critical steps in screening and are dependent on affordability, reliability, and integrity of information transfer between the stakeholders at each step. The investigators hypothesize that the SCD SIMCS will bridge these gaps in the screening process in Uganda and sustainably improve outcomes of children with SCD. The investigators propose the following Specific Aims to develop, validate, and trial a sustainable and error-proof mHealth system that will subsequently be adoptable and sustainable to facilitate population-wide SCD screening in Uganda:
Aim 1. To develop and evaluate a four-module ≥3G cell phone app for a novel SCD screening information management and communication system (SIMCS) (R21 Phase). The App will capture and interpret POC assays, capture and maintain a high-fidelity patient ID system, serve as a SCD e-passport interface, and facilitate SCD pre- and post- test counseling. The investigators will iteratively test the feasibility, accuracy, reproducibility, efficacy and robustness of the custom App and SCD SIMCS in our Mulago National Referral Hospital (MNRH)/Makerere University College of Health Sciences (MakCHS) Sickle Cell Program and affiliated primary health centers in Kampala. The goal is to enable a simple, error-free, reliable, and standardized SCD screening using a low-cost POC assay that can be performed across wide ranging health center levels and health worker expertise, and facilitate efficient information sharing and coordination between stakeholders.
Aim 2: To evaluate the impact of the SCD SIMCS on access to screening and care and outcomes of children with SCD (R33 Phase). Hypotheses: The SCD SIMCS will enable universal SCD screening of infants in participating communities, facilitate coordination of their clinical care, and result in reduction of morbidity and mortality due to SCD in participating communities. The investigators will perform a clustered randomized trial (CRT) of the SCD SIMCS among health centers in one urban and three rural districts of Uganda. The goal is to generate community level evidence on the impact of the SCD SIMCS to inform its adoption and expansion to a national scale in Uganda, and adaptation to other LMIC countries.
In Phase 1 the investigators will finalize creation of short videos for patient education, integrate the modules of the SCD SIMCS ≥3G cell phone App and test its integration with the Ministry of Health (MOH) Tier3 data center. The investigators will also optimize the analytics and informatics algorithms for data transmitted to the MOH data center. Reiterations of improvements and testing to optimize the design and functionalities of the App and SCD SIMCS will be made based on user feedback. Phase 1 will be conducted at Mulago National Referral Hospital and, later, piloted in a sample of health centers in the city of Kampala. In Phase 2 the investigators will conduct a Cluster Randomized Trial (CRT) involving health centers in one urban district (Kampala) and three rural districts that have established community research infrastructure; the Iganga-Mayuge Health Demographic Survey Site (IMHDSS) and Rakai Health Research Program (RHRP).
The investigators expect the proposed SCD SIMCS to reduce SCD mortality and morbidity by expanding access to screening, facilitating continuity and coordination of care, and providing real time data for national SCD policy and planning and research. Our team involves stakeholders with the mandate and resources to successfully conduct the proposed research and, most critically, to integrate and sustain the SCD SIMCS in the health system.
