HIV i-Base

HIV i-Base i-Base improve's the quality of care for HIV positive people. We are an independent treatment information and activist project. Access to information is a right.

HIV i-Base is a treatment advocacy group, HIV positive-led and committed to providing timely HIV treatment information to HIV positive people and healthcare professionals. We publish information for HIV positive people and for health workers and all our publications are available free in print and online. We are also involved in scientific and policy meetings, presentations, training and workshops

. We are also connected with many other activist groups in the UK and internationally. The information service (by phone, email, and online) provides individualised information to HIV positive people and their families, friends and advocates. i-Base produce resources based on latest research. For information to be useful and effective it needs to be accurate, up-to-date and in appropriate language. For most people this needs to use everyday language. For medical professionals this needs to be more technical. We follow the latest research, review and advise on treatment guidelines, alert to updated information, and work with other people living with HIV to adapt and use new information. All i-Base materials are copyright-free for non-for-profit use. They are written to be clear, easy to understand, evidenced-based and impartial. They are distributed free at point of access and accessible to all those in need. The website now includes translations into over 35 languages produced by partner organisations globally. All our advisory boards include HIV positive people and healthcare professionals. As a peer-led project most of people working at i-Base all also HIV positive. The i-Base website is designed to be fast and easy to access., with quick and stable downloads to people using dial-up connections or low speed connections in the UK or internationally. The i-Base Q&A information service is well established with over 3000 questions online. Activists at i-Base are connected to other community and research networks and collaborate on national and international research and policy programmes. Who participates in i-Base? i-Base is part of a broad network that includes:

• HIV-positive people
• community educators and activists
• healthcare professionals
• researchers and scientists
• commissioners and purchasers; and
• policy-makers. i-Base works with activists in other countries to help develop treatment education programmes. All i-Base material is provided free and has a copyright waiver for non-for-profit use. Therefore, in addition to the approximately 40,000 patient guides printed and distributed in the UK each year, i-Base also collaborates with many international groups to produce translations and adaptations of all materials. These resources, based on i-Base publications, have now been translated into more than 30 languages, and adapted for and distributed in many different settings. These translations are very often the first publications on HIV treatment and care in a country’s national or regional language produced by an HIV positive community organisation. Background

Currently in the UK, more than 100,000 people are living with HIV, one-third of who are not yet diagnosed. Around 7,000 people are diagnosed each year. Although HIV treatment and care in the UK are high quality and accessible particularly when compared to the rest of the world, too many people start treatment later than recommended to get the optimum response. About 30% of people are diagnosed late with a CD4 count of less than 350. Treatment is safe and effective, but 500 people in the UK each year still die from HIV-related causes. Half of these are due to late diagnosis. What is treatment literacy? Treatment literacy is essential to anyone challenged with the management of a chronic health problem, whether it is HIV infection, cancer, diabetes, hepatitis, or hypertension. Good treatment information helps people to make informed decisions about when to begin treatment and what treatment to choose, to understand how medicines work, and thus to understand the critical issues of adherence, possible medication interactions, and effective management of side effects if and when they occur. During the past decade, health researchers have defined concepts such as “functional health literacy”, and have documented the link between health literacy, health empowerment, and social capital to health outcomes. For example, a study published in 2000 showed that people living with HIV who had less ability to understand medical information and instructions were less likely to be taking antiretrovirals, less likely to have undetectable viral load even with treatment, and reported lower CD4 cell counts, poorer overall health outcomes, and greater incidence of hospitalisation (Kalichman, JAIDS 2000). Even after making allowance for years of education, lower health literacy was associated with poorer knowledge of HIV-related health status, poorer AIDS-related treatment knowledge, and more negative health care perceptions, misconceptions and experiences. Literacy and empowerment about HIV treatment decisions are especially needed by people who have limited access to health care, limited economic and social power to express their needs, and limited information or networks to support knowledge about options for health. The good news is that, for most people, current treatment can lead to a normal or near-normal life expectancy, and current research is investing in better, more effective and more tolerable treatments. HIV treatment requires much more care than nearly every other type of medicine. Missing HIV doses can lead to resistance making those treatments much less effective. Resistance to one drug often generates resistance to similar drugs in that class. So, although over 25 drugs have been approved to treat HIV, they only combine to offer a few successive combinations. This shows the importance of support and information to ensure that as HIV-positive people, we are actively involved in our own healthcare, including choice of treatment. The goal of treatment is not just reducing viral load and improving CD4 counts, reducing illness and extending our life expectancy – it is for this to improve our quality of life. HIV treatment and care can be complex. But if treatment is used carefully, then any combination has the potential to be lifelong. Many healthcare systems responsible for delivering care have limitations of time, communication or trust. Quality of healthcare provision can also be an issue in any clinic. One way to tackle these challenges is to ensure that people living with HIV have a high degree of health literacy and empowerment in their interactions with the health care system, and in their decision-making related to health and HIV treatment. Globally, particularly in countries with large-scale epidemics and fragile healthcare systems, there is a far more urgent need to develop HIV treatment literacy and empowerment. This has lead to many thousands of community-based organisations, many led by people living with HIV, being engaged in producing and distributing HIV treatment information. The past decade has provided a valuable lesson: that proper access and use of combination antiretroviral therapy requires the involvement and leadership by people living with HIV. Advances in global access to treatment has been driven as much by the treatment literacy and advocacy of people living with HIV as much as it has by the good will of governments, multinational organisations, pharmaceutical companies, global philanthropy, and health workers. i-Base is a partner in these global efforts, and is proud to contribute to these on-going struggles and successes.

i-base.info/htb/50802 – Transgender Day of Visibility: Gender-affirming hormones proved essential in HIV careTrans Day o...
31/03/2026

i-base.info/htb/50802 – Transgender Day of Visibility: Gender-affirming hormones proved essential in HIV care

Trans Day of Visibility can be a hopeful day celebrating the progress and achievements of the trans movement, but for many, it’s more complicated than that. ‘Visibility’ can often feel like a double-edged sword when hostility and rollbacks of rights occur alongside increased awareness. We offer solidarity to all our trans followers today and encourage our cis followers to speak up and take action against transphobia wherever you can.

We revisit this large study from the Lancet HIV last year, which reported that trans people accessing hormone therapy were over 40% more likely to stay undetectable and nearly 40% less likely to become HIV positive.

The related editorial described International Transgender Day of Visibility as ‘more crucial than ever’ – and this is just as true in 2026. Trans people still face significant barriers to healthcare, including HIV care, despite being a key population at risk from HIV.

This year’s day is particularly important given the NHS decision to pause new prescriptions of gender-affirming hormones for 16-17 year olds, despite their own very restrictive evidence review finding no significant harm.

 : i-base.info/htb/53453 – Pritelivir active against drug-resistant herpes in phase 3 studyThese results, presented by J...
26/03/2026

: i-base.info/htb/53453 – Pritelivir active against drug-resistant herpes in phase 3 study

These results, presented by Jean-Michel Molina, offer hope for people whose HSV-1 or 2 is resistant to first-line drugs for herpes, like aciclovir. Developing effective and tolerable options is a high unmet need and particularly affects people who are immunocompromised, e.g. people living with HIV.

The PRIOH-1 study randomised 101 people with drug- or treatment-resistant HSV-1 or 2 to either daily oral pritelivir or a med that is currently standard of care. This lasted for 28 days (or extended to 42 days) with further 28-day follow-up. Complete lesion healing at day 28 was used as a measure of the outcome of the study. Tolerability was reported as being good (with some headache and nausea).

Longer-term data will include cases of lesions returning after stopping pritelivir, meaning some people need a longer period of treatment. The US FDA has given pritelivir Breakthrough Therapy designation, meaning it’s agreed to speed up the review process. And an expanded access programme is also available to provide it to people with treatment-resistant HSV-1 or 2 who can’t use currently available medicines.

HTB homepage • Conference reports • Articles by subject • Subscribe CROI 2026: Pritelivir active against drug-resistant herpes in phase 3 study 9 March 2026. Related: Conference reports, Coinfections and complications, CROI 33 (Retrovirus) 2026. Simon Collins, HIV i-Base Drug resistance to HSV...

i-base.info/htb/53413 – Two cases of severe hyperglycemia with injectable CAB/RPV-LAReported in the March issue of Diabe...
20/03/2026

i-base.info/htb/53413 – Two cases of severe hyperglycemia with injectable CAB/RPV-LA

Reported in the March issue of Diabetes & Metabolism, both cases were in men in their early 60s who were on stable oral ART before switching. Both men had normal glycemic values before changing treatment but the values had mildly increased during the year before. This could suggest a prediabetic condition. Pancreatic autoantibodies were negative in both cases.

The paper authors noted that neither diabetes nor hyperglycemia is listed as a known risk for either cabotegravir or rilpivirine but they found another five reported cases in a literature search. They suggested that both cases might have been prediabetic. It could therefore be important to closely monitor glucose in people with even mildly increased glycemia, a high BMI, lethargy or unexplained weight loss.

Read details of the cases at the link above and click through to the journal article, which is open access.

HTB homepage • Conference reports • Articles by subject • Subscribe Two cases of severe hyperglycemia with injectable CAB/RPV-LA 5 March 2026. Related: Journal scan, Early access, Side effects. Simon Collins, HIV i-Base Two cases of severe hyperglycemia have been reported several weeks after s...

i-base.info/htb/53403 – Continued assaults on LGBTQI people in UgandaA Ugandan organisation called HRAPF (Human Rights A...
18/03/2026

i-base.info/htb/53403 – Continued assaults on LGBTQI people in Uganda

A Ugandan organisation called HRAPF (Human Rights Awareness and Promotion Forum - HRAPF) has detailed the latest homophobic and transphobic attacks in their monthly report. These are linked to a law that passed in 2023 called the AHA (Anti-Homosexuality Act). It imposes the death penalty for same-sex activity and 10-year prison sentences for those who support LGBTQI people or who do not report them.

The cases included violent attacks or threats, evictions, police entrapment and arrest, extortion and other human rights violations. Some LGBTQI people have been targeted when accessing healthcare, which may mean avoiding it in the future. This could have serious consequences, including for people living with HIV who need to collect their meds.

Click the link above for some examples of the most recent attacks, but please be aware they may be distressing to read.

HTB homepage • Conference reports • Articles by subject • Subscribe Continued assaults on LGBTQI people in Uganda 4 March 2026. Related: Early access, Treatment access, Activism & advocacy. Simon Collins and Ashwin Caffery, HIV i-Base Although the impact of the international health crisis from...

 : i-base.info/htb/53465 – Australian study of 4CMenB vaccine fails to protect gay men against gonorrhoeaSome unexpected...
17/03/2026

: i-base.info/htb/53465 – Australian study of 4CMenB vaccine fails to protect gay men against gonorrhoea

Some unexpected and controversial results at the conference come from the multisite, double-blind, placebo-controlled GoGoVax study. It randomised more than 600 gay men aged 18-50 to either receive two doses of a gonorrhoea vaccine or a placebo. Participants were mostly HIV-negative (90%) and all were at high risk of STIs.

Results showed there was no difference in protection against gonorrhoea between the placebo and vaccine groups, including in subgroup analyses.

The debate following this study’s presentation included speculation about whether a third dose of the vaccine would help. Some researchers are optimistic and think there could be more positive results in women and people at lower risk of gonorrhoea. But others think a better vaccine is needed. The same 4CMenB vaccine was rolled out across sexual health clinics in the UK in August 2025 for those at high risk of gonorrhoea, with UKHSA estimating its efficacy at 30-40%.

HTB homepage • Conference reports • Articles by subject • Subscribe CROI 2026: Australian study of 4CMenB vaccine fails to protect gay men against gonorrhoea 10 March 2026. Related: Conference reports, Coinfections and complications, CROI 33 (Retrovirus) 2026. Simon Collins, HIV i-Base One of ...

i-base.info/htb/53421 – GLP-1 agonists reduce substance use disorder: a role for addiction to chemsex drugs?Also known b...
12/03/2026

i-base.info/htb/53421 – GLP-1 agonists reduce substance use disorder: a role for addiction to chemsex drugs?

Also known by brand names, Ozempic, Wegovy and Mounjaro, one use of GLP-1 receptor agonists is for weight management in people with a BMI of 30 or more. A potential way this works is by breaking the dopamine reward pathway associated with craving food. There have also been anecdotal reports about people drinking less alcohol and smoking less on these drugs. i-Base has previously reported that this potentially means GLP-1s could help people with substance use disorder (SUD).

A new paper in the BMJ has added more data to support this idea. The study included more than 600,000 people (90% men) with diabetes but without SUD. It reported lower rates of a new SUD in people using GLP-1s compared to people using another med called an SGLT-2 inhibitor. In a separate study of 80,000 people who already had SUD, researchers reported that people using GLP-1s had fewer SUD-related clinical events compared to people using an SGLT-2 inhibitor. This included hospital visits, mortality and su***de.

The relevance for people living with HIV is that these results support further research to find out if GLP-1 agonists offer similar benefits for other substance use disorders, i.e. to break addiction to chemsex drugs. People living with HIV were excluded from the large GLP-1 trials but several independent studies have reported both potential benefits and cautions. Although the cost of GLP-1s makes current access difficult (3 in 4 people stop within a year), this could change next year in countries where the patents for semaglutide (Ozempic and Wegovy) expire in 2027.

**h ****ne

HTB homepage • Conference reports • Articles by subject • Subscribe GLP-1 receptor agonists reduce substance use disorder: a role for addiction to chemsex drugs? 6 March 2026. Related: Early access, Special reports, Side effects, Coinfections and complications. Simon Collins, HIV i-Base When i...

i-base.info/htb/53352 – US activist Peter Staley opens  : we must all be activists until the next US administrationThe H...
27/02/2026

i-base.info/htb/53352 – US activist Peter Staley opens : we must all be activists until the next US administration

The HIV activist gave a rallying speech for this year’s Martin Delaney Lecture. Titled, "Annus Horribilis" and The War on Science: Thoughts on Resisting and Rebuilding, it referenced the Lancet’s term for the US administration’s year of ‘destruction’ of health policy and scientific research during 2025. The talk reflected on Staley’s journey of activism following his own AIDS diagnosis – a fight that took place alongside Delaney and with the activist group ACT UP New York.

Staley used examples from the history of HIV activism, many personal, to describe how activists and scientists successfully united to achieve ‘miracles’. He drew the parallel of the AIDS crisis of the past to the HIV funding crisis now, created by the Trump administration. Recalling losing sleep as a young man, feverish with symptoms of AIDS, he describes losing sleep now, thinking about the thousands of people in Africa whose funding for HIV treatment has been cut.

But it is a hopeful speech that asks everyone listening to consider their part in this crisis, and to use the past as a roadmap. Staley applauds the passion of US scientists fighting back against the government but also says more can be done. That the scientists who’ve been silent must speak up. He looks to the future, beyond Trump, as he urges us to plan now for the ‘great rebuilding’: “the pendulum that has been swinging against us this past year will, if we fight for it, eventually swing back.” Click the link above to access the full transcript or watch the speech online.

HTB homepage • Conference reports • Articles by subject • Subscribe US activist Peter Staley opens CROI: we must all be activists until the next US administration 27 February 2026. Related: Early access, Conference reports, Activism & advocacy, CROI 33 (Retrovirus) 2026. Simon Collins, HIV i-B...

 : i-base.info/htb/53317 – Once-daily oral BIC/LEN simplifies ART for those on complex combinationsA large phase 3 study...
27/02/2026

: i-base.info/htb/53317 – Once-daily oral BIC/LEN simplifies ART for those on complex combinations

A large phase 3 study at CROI called ARTISTRY-1 presented results in people who switched ART (HIV meds) to a simpler new daily pill. The pill contained bictegravir and lenacapavir, which are drugs that fewer people are resistant to. Tolerability and side-effects were good and 96% and 93% stayed undetectable, respectively. No one developed drug resistance.

The people eligible to take part had been taking 2 or more pills for HIV a day, with some taking up to 11 tablets daily. This is because most participants had developed drug resistance to one or more types of meds after being on ART for many years. Other reasons were not being able to tolerate side effects or drug interactions with other meds. 80% of participants also took meds for other conditions.

The results mean that in the future, other people in these situations could have a new much easier option for HIV treatment. The new BIC/LEN pill meets an unmet need for people on complex combinations and follows treatment guidance which recommends a once-daily pill. Reducing pill burden is important for improving quality of life.

HTB homepage • Conference reports • Articles by subject • Subscribe CROI 2026: Once-daily oral BIC/LEN simplifies ART for those on complex combinations 25 February 2026. Related: Early access, Conference reports, Antiretrovirals, CROI 33 (Retrovirus) 2026. Simon Collins, HIV i-Base Several stu...

 : i-base.info/htb/53282 – Continued HIV protection from 2:1:1 PrEP dosing in gay and bisexual men in ParisThe final res...
25/02/2026

: i-base.info/htb/53282 – Continued HIV protection from 2:1:1 PrEP dosing in gay and bisexual men in Paris

The final results of the PREVENIR study have been presented at CROI. This large 8-year study in Paris looked at on-demand PrEP using 2:1:1 dosing. Results were reported for people using daily dosing, people using 2:1:1 dosing, and for the group that switched from one to the other. Participants were able to choose their dosing m**hod and could change during the study. Most of the 3200 participants were cisgender gay men born in France who were at high risk of HIV. 70% had a university degree and 14% used chemsex.

The results show that on-demand dosing (also called event-based dosing) is just as effective as daily dosing. Out of the 13 people who acquired HIV, tests showed that 11 weren’t taking enough PrEP for protective levels.

One of the aims of the study was to reduce HIV incidence in gay men in Paris, which wasn’t achieved. This is because although it reduced in people born in France, it increased in people born abroad. This highlights important issues with PrEP access for immigrants to France. Read more at the link above.

HTB homepage • Conference reports • Articles by subject • Subscribe Continued HIV protection from 2:1:1 PrEP dosing in gay and bisexual men in Paris 24 February 2026. Related: Early access, Conference reports, HIV prevention and transmission, CROI 33 (Retrovirus) 2026. Simon Collins, HIV i-Bas...

i-base.info/croi-2026-introduction-and-main-themes-to-watch-out-for – i-Base reports from  : main themes and research to...
24/02/2026

i-base.info/croi-2026-introduction-and-main-themes-to-watch-out-for – i-Base reports from : main themes and research to watch out for

Progress towards finding a cure for HIV, responding to the Trump administration’s attack on science, and collaborative HIV prevention are three of the key topics at the 33rd CROI. It’s one of the most important international HIV medical conferences, presenting the latest HIV research.

This includes lots of new HIV drugs and combinations in development, many of which are for long-acting ART. New data will also include why some combinations fail and how drug resistance plays a role. Some studies report on bNAbs, which are being used to treat, prevent and cure HIV in different combinations.

Research on new drugs for PrEP is also being presented: islatravir, lenacapavir, cabotegravir and bNAbs. And also a long-acting dolutegravir implant combined with a contraceptive. Other studies will look at the practical aspects of PrEP – access, side-effects and why people stop taking it. Read our early summary of the new research at CROI at the link above – more updates to come later.

CROI 2026: Introduction and main themes 20 February 2026. Related: News. NOTE: CROI limits early references to specific drugs and combinations in oral presentations. These will be published when the embargo lifts over the next few days. Simon Collins, HIV i-Base From 22–25 February 2026, CROI will...

i-base.info/htb/53179 – US funding cuts set to cause 23 million excess deaths in the poorest countries by 2030An analysi...
06/02/2026

i-base.info/htb/53179 – US funding cuts set to cause 23 million excess deaths in the poorest countries by 2030

An analysis in Lancet Global Health assessed both how global aid has impacted low- and middle-income countries (LMICs) in the past and how cuts will impact them in the future.

International development aid between 2002-2021 had a very positive impact. It brought down the number of total deaths in LMICs by over 20% and also deaths from specific illnesses: HIV/AIDS by 70%, and malaria, nutritional deficiencies and neglected tropical diseases all by over 50%. Under-5 mortality reduced by almost 40%.

However, due to the vast cuts by the US, the largest single donor to LMICs, this trend will reverse. The modelling in this paper predicts 22.6 million additional deaths by 2030, which includes more than 5.4 million children under 5.

HTB homepage • Conference reports • Articles by subject • Subscribe US funding cuts set to drive 23 million excess deaths in the poorest countries by 2030 5 February 2026. Related: Journal scan, Early access, Treatment access. Simon Collins, HIV i-Base A new analysis of the impact of overall c...

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