Direct-acting antivirals indicated for treatment of hepatitis C (interferon-free) - referral
Current status
Referral
Human
Further studies needed to assess risk of liver cancer with these medicines
On 15 December 2016, the European Medicines Agency (EMA) confirmed its recommendation to screen all patients for hepatitis B before starting treatment with direct-acting antivirals for hepatitis C; patients infected with both hepatitis B and C viruses must be monitored and managed according to current clinical guidelines. These measures aim to minimise the risk of hepatitis B re-activation with direct-acting antivirals.
Direct-acting antivirals (marketed in the EU as Daklinza, Exviera, Harvoni, Olysio, Sovaldi and Viekirax)1 are important medicines for treating chronic (long term) hepatitis C, a disease of the liver caused by hepatitis C virus.
The review of direct-acting antivirals was carried out by EMA's Pharmacovigilance Risk Assessment Committee (PRAC). It looked into cases of returning signs and symptoms of previously inactive hepatitis B infection (re-activation) when patients were treated with direct-acting antivirals for hepatitis C.
The hepatitis B re-activation is thought to be the consequence of the rapid treatment-induced reduction in hepatitis C virus (as co-infection is known to suppress the hepatitis B virus) and the lack of activity of direct-acting antivirals against hepatitis B virus.
The PRAC recommendation to include a warning in the prescribing information about hepatitis B re-activation and how to minimise it was endorsed by EMA's Committee for Medicinal Products for Human Use (CHMP).
In addition to data on hepatitis B re-activation, EMA also reviewed data suggesting that patients treated with direct-acting antivirals who have previously been treated for liver cancer could be at risk of their cancer returning early.
The CHMP agreed that companies should carry out a study to evaluate the risk of liver cancer returning with direct-acting antivirals. In this context, further research is also needed on the risk of new liver cancers in patients with chronic hepatitis C and cirrhosis (liver scarring) that are treated with direct-acting antivirals.
The CHMP's opinion was passed to the European Commission, which issued a legally binding decision valid throughout the EU.
Direct-acting antiviral medicines (including Daklinza, Exviera, Harvoni, Olysio, Sovaldi and Viekirax) are effective treatments for long-term hepatitis C that can be used without interferons (medicines known to have troublesome side effects).
Cases of hepatitis B re-activation (with severe consequences) have been reported in patients co-infected with hepatitis B and C viruses treated with direct-acting antivirals. The frequency of such re-activation appears to be low.
The review covered the following direct-acting antivirals for treating chronic hepatitis C: Daklinza (daclatasvir), Exviera (dasabuvir), Harvoni (sofosbuvir / ledipasvir), Olysio (simeprevir), Sovaldi (sofosbuvir) and Viekirax (ombitasvir / paritaprevir / ritonavir). Since the start of this review, two other direct-acting antivirals, Epclusa (sofosbuvir / velpatasvir) and Zepatier (elbasvir / grazoprevir), have been authorised in the EU.
Direct-acting antivirals work by blocking the action of proteins which are essential for making new hepatitis C viruses.
More information on these medicines can be found on EMA's website.
The review of direct-acting antivirals for the treatment of hepatitis C was initiated on 17 March 2016 at the request of the European Commission, under Article 20 of Regulation (EC) No 726/2004. On 14 April 2016 the scope of the review was extended to include the risk of liver cancer, in addition to the potential risk of hepatitis B re-activation.
The review was carried out by the Pharmacovigilance Risk Assessment Committee (PRAC), the committee responsible for the evaluation of safety issues for human medicines, which made a set of recommendations.
The PRAC recommendations were sent to the Committee for Medicinal Products for Human Use (CHMP), responsible for questions concerning medicines for human use, which adopted the Agency's opinion. The CHMP opinion was forwarded to the European Commission, which issued a final legally binding decision applicable in all EU Member States on 23/2/2017.
This type of procedure is triggered for medicines that have been authorised via the centralised procedure in case of quality, safety or efficacy issues.
Description of documents published
Please note that some of the listed documents apply only to certain procedures.
Note that older documents may have different titles.