World Sickle Cell Day 2025

Groundbreaking gene editing therapy for sickle cell disorder (SCD) became available on the NHS in England earlier this year.1 Although SCD is the fastest growing genetic disorder in the UK,2 with nearly 300 babies born with it each year,3 long-term underinvestment in research has led to a dearth of treatment options. The new gene therapy, exagamglogene autotemcel (exa-cel), is a welcome alternative to stem cell transplants, which is particularly vital given the shortage of matched donors.4 While this is potentially life-changing for eligible patients, who are among those more severely affected by SCD, everyone living with this disorder deserves better treatment options and holistic care.



For underserved conditions such as SCD, the barriers to reimbursement of novel therapies are considerable. Poor disease awareness leads to a lack of understanding of the unmet need, while a lack of high-quality data means that quantifying the natural history, burden of disease and potential therapeutic benefits is fraught with uncertainty.

What can we learn from the recent NICE appraisal of exa-cel, and how can we use these insights to better shape reimbursement and market access for patients with SCD and other underserved or rare conditions?

Market Access Insights: Patient Voice

In their recent appraisal of exa-cel, NICE highlighted the large number of comments they received from the public, healthcare professionals, carers and people with sickle cell disorder in response to the consultation. Patient experts and patient testimonials were cited more than 25 times in the committee discussion, with NICE incorporating patient perspectives into conclusions regarding the burden of the disease, limitations of current therapies, approach to modelling utilities, and when accounting for both carer quality of life and health inequalities by accepting a higher degree of uncertainty in their decision making.4

At Visible Analytics, we have the expertise required to bring the patient voice into reimbursement decision making. We can provide training for patient organisations on the reimbursement process, conduct patient interviews and burden of illness studies, compile value stories that effectively bridge between the lived experience of patients and payer requirements, and manage the HTA submission process to ensure that the value to patients is communicated end-to-end. 

Market Access Insights: Managed Access

Exa-cel is one of the first treatments to be made available through the Innovative Medicines Fund managed access scheme.4 The Innovative Medicines Fund was introduced in June 2022 in recognition of the challenges facing novel therapies, particularly in rare diseases or underserved populations, where the data are not always suitable for NICE to make decisions on long-term reimbursement. The aim of the Innovative Medicines Fund is to provide faster access to promising new non-cancer therapies on the condition that additional data are collected during the managed access period to address the outstanding uncertainties in the clinical or health economic evidence base.5

Since its launch, twelve drugs have appeared on the Innovative Medicines Fund list, but ten of these were recommended for routine commissioning, with interim funding provided via the fund. Only two—both gene therapies for blood disorders—have been recommended for ongoing managed access via the Innovative Medicines Fund: exa-cel for SCD and for transfusion-dependent beta thalassaemia, and etranacogene dezaparvovec for moderately severe or severe haemophilia B.6

One solution to the strains on healthcare resources is to implement a learning health system, a systematic approach to continuous, data-driven improvements in care.7 Conditional reimbursement agreements such as managed access through the Innovative Medicines Fund, where access is time-limited and conditional on additional data collection to inform longer-term decision making, form part of such a system. But when might other forms of value-based pricing and reimbursement, such as performance-based discounts or rebates, be more appropriate? At Visible Analytics, we can guide you through the most appropriate access route, providing strategic advice and actionable recommendations to secure reimbursement.