Using SMSs to remind HIV patients to take their dose of life-saving medication could give a major boost to drug adherence, according to an innovative trial in Kenya unveiled on Tuesday.
In the “WelTel Kenya1” study, three clinics recruited 538 patients with the virus.
They either received the weekly SMS to their cellphone in addition to a standard course of antiretroviral drugs or were given standard care alone.
The SMS recipients typically received the discreet message “Mambo?”, which is Kiswahili for “How are you?” They were instructed to reply “Sawa” (fine) or “Shida” (problem) within 48 hours.
Those who said they had a problem or who failed to respond to the prompt within two days were called by a nurse to find out what was wrong.
In the SMS group, the number of patients who achieved 100% adherence to their drug regimen was 12 % higher than in the non-message group.
Glaring results achieved cheaply
In addition, the numbers who were able to achieve suppression of HIV to below detectable levels in their blood — a key benchmark of success — was nine percent higher in the SMS group than in the standard-care group.
The technique was also cost-effective because it needed no additional equipment and little human intervention.
Each SMS cost only around five US cents, and the nurses who made the calls were able to send off the messages in computerised batches, rather than individually.
Only 3,3% of the prompts required a follow-up. As a result, one nurse could potentially manage 1 000 patients by SMS, and expect to make a follow-up call to only 33 patients per week.
On cost grounds, the SMS system could be a sure-fire winner compared to personal visits by a nurse, the researchers say. It could be less expensive just measured on travel costs alone.
SMSs could help poorer countries
The approach could well work in other cash-strapped countries which are fighting to get HIV patients to adhere to antiretrovirals, but are also seeing an explosion in the use of mobile phones, the study suggests.
Aids drugs often carry unpleasant or toxic side effects and have to be followed for the rest of one’s life.
The study, led by Richard Lester of the British Columbia Centre for Disease Control in Vancouver, western Canada, is published online by the Lancet. – Sapa-AFP