Showing posts with label adherence. Show all posts
Showing posts with label adherence. Show all posts

Tuesday, March 5, 2013

VOICE Lesson: It's Unfair to be Non-Adherent

This post by IRMA's Jim Pickett first appeared on the blog of the HIV Prevention Justice Alliance.


The VOICE results are extremely important to the field of new prevention technology research. I hope current/future/much-needed discussions about VOICE don’t get drowned out by the HYPE (yes, all caps HYPE) surrounding the “baby cure” story which has dominated coverage out of CROI so far.

If there is one VOICE lesson to focus on, it is adherence. Or in this case, the upsetting lack thereof. It is absolutely important to fully understand why so many of the women in the trial didn’t apply the gel, or take the pill. And it is critically important for scientists to develop things people actually WANT to use, and DESIRE. Perhaps a daily gel, or a daily pill, is simply not desirable for a lot of folks. Makes sense to me.

But here’s the rub. The field can’t move forward with product development when people don’t actually test-drive the product being investigated. Products can’t be improved without data from people who actually used the product. Sure, a daily gel or a daily pill may not be everyone’s idea of a good time… but the only way those ideas get translated from the clunky Model T Ford to a slick 2013 BMW is through a long, iterative process. Which requires trial participants to APPLY THE GEL and/or TAKE THE PILL.

I get that people join trials for all kinds of reasons, and that for many; it is their only access to healthcare. So, they may have no interest in actually participating in test driving anything, but are very excited about regular HIV and STD screening, counseling, access to condoms and lube, referrals to other services, etc. Can’t be mad at them for wanting those things. Right?

It’s a crime, really, or at the very least an outrage, that clinical trials end up being the only healthcare access point for too many folks. That needs to be addressed, on its own.

But…we simply can’t afford enrolling thousands of people into complicated and costly clinical trials to have them just forgo what they SIGNED UP to do. Let’s be brutally honest here, joining a trial to get health screenings and condoms is great for the individual – but it does NADA, NOTHING, NOOTCH for the community/communities fighting HIV who are desperate for new tools to prevent HIV.

Being in a clinical trial is a commitment to following the protocol as best as possible, and being honest when unable. Clinical trial participation necessitates a strong sense of altruism, a desire to help answer big questions for whole populations. I think it is unfair to everyone, especially highly impacted communities where HIV rates are soaring, and where the crisis is anything but over, for trial participants to sign informed consents and derive individual benefits from trials without fully engaging in the study protocols that would allow for potential population benefits.

There are not unlimited resources. In fact, they are shrinking (Hello Sequester!) We can’t continue to fund expensive, resource-intensive, multi-year trials in which most people only SAY they test drove the product.

Jim Pickett is the Chair of the International Rectal Microbicide Advocates (IRMA). This blogpost is part of our ongoing coverage of the 2013 Conference on Retroviruses & Opportunistic Infections (CROI). To read more perspective and analysis on the VOICE results at CROI, click here.

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  *Join IRMA's robust, highly-active. moderated, global listserv addressing rectal microbicide research and advocacy as well as other interesting new HIV prevention technologies by contacting us at rectalmicro@gmail.com. Joining our listserv automatically makes you a member of IRMA - a network of more than 1,100 advocates, scientists, policy makers and funders from all over the world.

*Please look for us on Facebook: www.facebook.com/InternationalRectalMicrobicideAdvocates, and you can follow us on Twitter: @rectalmicro.

*Also, please note that shared news items from other sources posted on this blog do not necessarily mean IRMA has taken any position on the article's content.

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Tuesday, June 19, 2012

PrEP: time to rethink prevention, effectiveness and ethics?

via Somatosphere, by Marsha Rosengarten

One of the more controversial interventions proposed for HIV prevention in those who test HIV antibody negative and perceived to be at risk is pre-exposure prophylaxis (PrEP) – a daily pill comprising one or two antiretroviral drugs manufactured by Gilead Inc. Besides the mixed results from multi-site randomised controlled trials (RCTs) seeking to establish the efficacy of PrEP (see iPrEX versus Fem-PrEP), concerns have been raised about PrEP’s potential to undermine condom use, its cost implications in locales where treatment provision is still lacking and elsewhere, its potential to cause unwanted drug side-effects as well as possible drug resistance in those it fails to protect.

Nevertheless, continuing new infections and evidence that high adherence produces a strong protective effect are mobilising many public health authorities to devise feasible implementation models.

Most remarkable about the growing interest in PrEP is the exclusion of the social sciences from major forums where this work is taking place. One such example is a two-day forum held in the UK by IAPAC on the dual topics of treatment as prevention (TasP) and PrEP. The only non-biomedical speakers listed on the programme were a psychologist (speaking on adherence), a bioethicist, activists and public health officials linked to various national epidemics.

Indeed it won’t come as a surprise to many to know that despite the millions of dollars to support RCTs for PrEP, the Bill and Melinda Gates Foundation have so far declined to support a substantial programme of social research on PrEP. In fact if we consider the bioethical requirements imposed on the conduct of RCTs for PrEP and other biomedical interventions, there is no ethical requirement for research on the social dimensions of the intervention during or post RCTs. This applies even when RCTs demonstrate candidate efficacy.

Read the Rest.
 
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*Join IRMA's robust, highly-active. moderated, global listserv addressing rectal microbicide research and advocacy as well as other interesting new HIV prevention technologies by contacting us at rectalmicro@gmail.com. Joining our listserv automatically makes you a member of IRMA - a network of more than 1,100 advocates, scientists, policy makers and funders from all over the world.

*Please look for us on Facebook: www.facebook.com/InternationalRectalMicrobicideAdvocates, and you can follow us on Twitter: @rectalmicro.

*Also, please note that shared news items from other sources posted on this blog do not necessarily mean IRMA has taken any position on the article's content.

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Thursday, April 14, 2011

Kenya: Counselling, not alarm device, had best effect on ART adherence

Via aidsmap, by Carole Leach-Lemens

Patients in Nairobi, Kenya getting intensive early adherence counselling when starting antiretroviral therapy were 29% less likely to have poor adherence and 59% less likely to have virological failure compared to those getting no counselling Michael H Chung and colleagues reported in a randomised, controlled trial published in the March issue of PLoS Medicine.

The positive effects of counselling on adherence were seen immediately after starting antiretroviral therapy and maintained throughout the18 month follow-up period. Use of an alarm device had no effect on adherence or virological outcomes. Public health concerns that scale-up of antiretroviral treatment in sub-Saharan Africa would lead to poor adherence and widespread drug resistance have been proven wrong, note the authors.

The authors conclude “as antiretroviral treatment clinics expand to meet an increasing demand for HIV care in sub-Saharan Africa, adherence counselling should be implemented to decrease the development of treatment failure and spread of resistant HIV.”

Read the rest

[If an item is not written by an IRMA member, it should not be construed that IRMA has taken a position on the article's content, whether in support or in opposition.]

Friday, July 2, 2010

Toward an Information-Motivation-Behavioral Skills Model of Microbicide Adherence in Clinical rials

Via AIDS Care, Rebecca A. Ferrerab; Kathleen M. Morrowcd; William A. Fishere; Jeffrey D. Fisherbf

Unless optimal adherence in microbicide clinical trials is ensured, an efficacious microbicide may be rejected after trial completion, or development of a promising microbicide may be stopped, because low adherence rates create the illusion of poor efficacy. We provide a framework with which to conceptualize and improve microbicide adherence in clinical trials, supported by a critical review of the empirical literature. The information-motivation-behavioral skills (IMB) model of microbicide adherence conceptualizes microbicide adherence in clinical trials and highlights factors that can be addressed in behavioral interventions to increase adherence in such trials. This model asserts that microbicide adherence-related information, motivation, and behavioral skills are fundamental determinants of adherent microbicide utilization. Specifically, information consists of objective facts about microbicide use (e.g., administration and dosage) as well as heuristics that facilitate us e (e.g., microbicides must be used with all partners). Motivation to adhere consists of attitudes toward personal use of microbicides (e.g., evaluating the consequences of using microbicides as good or pleasant) as well as social norms that support their use (e.g., beliefs that a sexual partner approves use of microbicides). Behavioral skills consist of objective skills necessary for microbicide adherence (e.g., the ability to apply the microbicide correctly and consistently). Empirical evidence concerning microbicide acceptability and adherence to spermicides, medication, and condom use regimens support the utility of this model for understanding and promoting microbicide adherence in clinical trials.

For more click here.
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