Unitaid welcomes GlaxoSmithKline’s renewed interest in the Unitaid patent pool initiative for HIV/Aids medicines and its openness to taking a flexible approach to managing intellectual property (Letters, 10 September); and GlaxoSmithKline urged to pool its patents on HIV drugs, 7 September). Wherever multiple patents owned by different companies are required to make a product, patent pools may offer a useful solution. Pills that combine three medicines into one tablet to treat HIV/Aids are a good example of such products.

The World Health Organisation recommends the use of such pills because they make it easier for patients to take their treatment and reduces the risk that viral resistance will render the drugs useless. However, patents from two to three different companies are usually required, meaning that single-company initiatives will not do the trick. The Unitaid pool will facilitate the development of combination pills and children’s formulations of HIV/Aids medicines for use in developing countries, based on voluntary patent contributions from pharmaceutical companies. Those companies will receive royalty payments for doing so. The pool will also enable robust competition among drug producers to ensure that international resources to fight Aids, currently under severe strain, are spent as efficiently as possible.

The situation is urgent. An estimated 6 million people needing access to Aids treatment, including hundreds of thousands of children, still do not receive it. This number will only grow in the years to come. We ask GSK and other Aids drug patent-owners to work with us to make this initiative a success.

Ellen ’t Hoen

Source: The Guardian-