Abstract
Objectives
Most African children born with sickle cell disease (SCD) will die before their fifth birthday. Hydroxyurea has proven therapeutic benefits for SCD yet remains inaccessible to many children in low- and middle-income countries. To inform policy on coverage and reimbursement, this study evaluates the cost-effectiveness of hydroxyurea for pediatric SCD in Ghana, compared with the standard of care.
Methods
We developed a Markov model of SCD progression, incorporating costs and effects from a Ghanaian payer perspective, over a 17-year time horizon. Outcomes were life-years gained and disability-adjusted life-years averted. Cost-effectiveness was determined using the World Health Organization willingness-to-pay threshold of 1 times the per-capita gross domestic product and an alternative country-specific threshold based on health opportunity cost ($580.52). One-way and probabilistic sensitivity analyses were undertaken. Costs and effects were discounted at 3% per annum.
Results
In the base case, the incremental cost-effectiveness ratio was $1440.34 per disability-adjusted life-year averted and $1823.89 per life-year gained. The intervention was potentially cost-effective using the World Health Organization threshold but not cost-effective using the alternative threshold. The 1-way sensitivity analysis highlighted the incremental cost-effectiveness ratio’s sensitivity to price changes, emphasizing the importance of price negotiations.
Conclusions
Hydroxyurea can provide substantial health benefits for Ghanaian children with SCD. The results provide a strong argument for the incorporation of hydroxyurea into the Ghana national health insurance benefits package. Future research should address the disparity in threshold outcomes and the need for country-specific data on the long-term effects and broader economic impact of hydroxyurea in Ghana.
Authors
Sinaï Francisco Dias Brian Asare Lumbwe Chola