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The Present and Future of Microbicides. Jim Pickett, AFC/IRMA Los Angeles Biomedical Forum May 31, 2013. Our time together…. Microbicides What are they? Vaginal microbicide research Rectal microbicide research IRMA Who is she? Rectal microbicide advocacy. Microbicides.
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The Present and Future of Microbicides Jim Pickett, AFC/IRMALos Angeles Biomedical Forum May 31, 2013
Our time together… • Microbicides • What are they? • Vaginal microbicide research • Rectal microbicide research • IRMA • Who is she? • Rectal microbicide advocacy
What is a microbicide? • A product applied topically in the vagina or the rectum that can offer protection against HIV and, ideally, other STI pathogens • Ideally would have a contraceptive version, and another to allow for pregnancy – ARV/non-ARV (MPTs) • Formulated as a gel/lubricant, film, or vaginal ring • A rectal microbicide might be delivered via gel/lubricant, douche/enema, or … Microbicides are still in development they are not available yet!
How a microbicide works McGowan I, Biologicals, 2006 Slide courtesy Dr. Ian McGowan
Vaginal microbicide research CAPRISA 004
Vaginal microbicide research • CAPRISA 004 – HUZZAH! • CAPRISA 008 • Implementation study underway • Effectiveness/sustainability in rural and urban clinics • HIV-negative CAPRISA 004 participants
Vaginal microbicide research • VOICE • Phase 2B, randomized, double-blind, placebo-controlled, 5-arm trial • 5029 women in trial – Uganda, South Africa and Zimbabwe • Studied daily use of following : • Vaginal tenofovir 1% gel • Oral tenofovir • Oral Truvada • Results announced March 2013 CROI
The Big 3 – Effectiveness Trials • Phase III trial of tenofovir gel • BAT24 dosing – hope to confirm CAPRISA 004 • 2600 women, age 18-30, SA 10 sites • Oct 2011 ~ mid 2014 Monthly vaginal ring with Dapivirine – 2 trials Slide courtesy AVAC
Anal intercourse is a human behavior.
An act of unprotected anal intercourse is 10 to 20 timesmore likely to result in HIV transmission than an act of unprotected vaginal intercourse.
Rectal microbicide research • RMP 01 – UC-781 • MTN 006 – tenofovir • MTN 007 – modified tenofovir • Project Gel, CHARM SOON MTN 017 • 36 men/women U.S. • 18 m/w U.S. • 65 m/w U.S. • 186 Peru, RSA, Thailand, U.S., PR (gay, MSM, TG women)
RM Safety, Acceptability /Young Men Stage 1B 3 month Acceptability & Adherence study with placebo gel 120 MSM RAI in last 3 months STI negative Stage 1A Screening 240 MSM Consensual RAI in last month URAI in last year Stage 2 Phase 1 Tenofovir rectal safety study 24 MSM R01 HD059533 Slide courtesy Dr. Ian McGowan
CHARM Program • Combination HIV Antiretroviral Rectal Microbicide Program • Development of rectal specific ARV microbicides • Humanized mouse model • Phase 1 studies • Tenofovir • Maraviroc • Tenofovir & Maraviroc Slide courtesy Dr. Ian McGowan, pic from the IRMA collection
CHARM 01 • Phase 1 rectal safety study • Tenofovir 1% gel • Original formulation (3,111) • Reduced glycerin formulation (846) • Rectal specific formulation (479) • Endpoints • Safety, • Acceptability, • PK/PD • N = 18 • Sites • Pittsburgh • UCLA • Q1 2013 Slide courtesy Dr. Ian McGowan
CHARM 02 • Phase 1 rectal safety study • Safety in the presence or absence of simulated coitus • Endpoints • Safety • PK • Product distribution • N = 9 • Sites • Johns Hopkins • Q1 2013 Slide courtesy Dr. Ian McGowan
CHARM 03 • Phase 1 rectal safety study • Maraviroc • CCR5 antagonist (Selzentry®) • Study products • Maraviroc 0.1% • Maraviroc 1.0 % • Maraviroc + tenofovir • Endpoints • Safety, • Acceptability, • PK/PD • N = 24 • Sites • Pittsburgh • UCLA • Johns Hopkins • Q1 2014 Slide courtesy Dr. Ian McGowan
MTN-017 – Any day now… Slide courtesy Dr. Ian McGowan
To enjoy (the gel) first you need to use it
IRMA, b.2005 4 people, 4 agencies, 2 countries
1200+ advocates, scientists, funders, policymakers from 6 continents AIDS Foundation of Chicago is the IRMA secretariat
Mission: support development of safe, effective, acceptable, and accessible rectal microbicides for all that need them AIDS Foundation of Chicago is the IRMA secretariat
YouTubetinyurl.com/RectalRevEnglish tinyurl.com/RectalRevSpanish tinyurl.com/RectalRevThai
Monograph being published by RAND – coming to you soon electronically, and featuring a forward by Archbishop Desmond Tutu. Visit www.mappingpathways.blogspot.com
Thanks to our supporters • AIDS Foundation of Chicago • amfAR – The Foundation for AIDS Research • Broadway CARES /Equity Fights AIDS • Elton John AIDS Foundation • New Venture Fund • NIH Office of AIDS Research • AVAC • MAC AIDS Foundation • Microbicide Trials Network • Population Council • Individuals - like my partner