Free online tool may help doctors make treatment decisions for HIV-positive patients with drug resistance

UK investigators have developed an online resource that can help doctors select the most effective combination of anti-HIV drugs for patients with extensive experience of antiretroviral therapy. Evaluated in two studies published in the January edition of AIDS Patient Care and STDs, suggestions made by the tool led to doctors changing their initial treatment decision in a third of cases. Physicians found the resource easy to use, and the majority said that they would consider using it in the future.

An updated version of the resource, the HIV Treatment Response Prediction System (HIV-TRePS), is now freely available on the internet, and is based on a computer model that includes information gathered from 65,000 HIV-positive patients across the world.

Doctors enter information about their patients, including resistance to HIV drugs, antiretroviral treatment history, CD4 cell count, and viral load. The programme then suggests the five combinations of drugs which are likely to be most effective.

“HIV-TRePS is an innovative and important tool to improve the health of people with HIV”, said Dr Julio Montaner of the British Columbia Centre for Excellence in HIV/AIDS. His clinic was involved in the development of the resource.

More >>

Scroll to Top

During the Canada Post strike announced September 25, 2025, the following measures will be undertaken to minimize service disruption to BC-CfE clients and providers.

  • The BC-CfE Laboratory has transitioned to private courier for delivery of outgoing reports and documents. Results required urgently can be faxed upon request. (Lab Contact Information: Phone 604-806-8775; FAX 604-806-9463)
  • The BC-CfE Drug Treatment Program (DTP) will fax outgoing forms and documents to the provider’s office. (DTP Contact Information: Phone 604-806-8515; FAX 604-806-9044)
  • St. Paul’s Hospital Ambulatory Pharmacy has transitioned to private courier for delivery of medications. We recommend requesting medication at least 2 weeks in advance in case of delivery delays, particularly to rural/remote parts of BC. (Contact Information: Phone 1-800-547-3622; FAX 604-806-8675)

During the Canada Post strike, we recommend that documents be faxed or couriered to our sites, versus utilization of regular mail service

The BC-CfE Laboratory is streamlining reporting processes for certain tests in order to simplify distribution and record-keeping, and to ensure completeness of results. Beginning September 2, 2025, results for the ‘Resistance Analysis of HIV-1 Protease and Reverse Transcriptase’ (Protease-RT) and ‘HIV-1 Integrase Resistance Genotype’ tests will be combined into a single ‘HIV-1 Resistance Genotype Report’.
For more details and example reports, please click on the button below