Good news! This could this be a long awaited breakthrough? Apparently, this vaccine has so far only been tested on rats. This new vaccine seems to be surprisingly specific to fentanyl in its effects.
"A research team led by the University of Houston has developed a vaccine targeting the dangerous synthetic opioid fentanyl that could block its ability to enter the brain, thus eliminating the drug’s “high.” The breakthrough discovery could have major implications for the nation’s opioid epidemic by becoming a relapse prevention agent for people trying to quit using opioids. While research reveals Opioid Use Disorder (OUD) is treatable, an estimated 80% of those dependent on the drug suffer a relapse. ...
Our vaccine is able to generate anti-fentanyl antibodies that bind to the consumed fentanyl and prevent it from entering the brain, allowing it to be eliminated out of the body via the kidneys. Thus, the individual will not feel the euphoric effects ...
Our vaccine is able to generate anti-fentanyl antibodies that bind to the consumed fentanyl and prevent it from entering the brain, allowing it to be eliminated out of the body via the kidneys. Thus, the individual will not feel the euphoric effects ...
The team plans to start manufacturing clinical-grade vaccine in the coming months with clinical trials in humans planned soon. ..."
From the abstract:
"Fentanyl (FEN) is a potent synthetic opioid associated with increasing incidence of opioid use disorder (OUD) and fatal opioid overdose. Vaccine immunotherapy for FEN-associated disorders may be a viable therapeutic strategy. Here, we expand and confirm our previous study in mice showing immunological and antinociception efficacy of our FEN vaccine administered with the adjuvant dmLT. In this study, immunized male and female rats produced significant levels of anti-FEN antibodies that were highly effective at neutralizing FEN–induced antinociception in the tail flick assay and hot plate assays. The vaccine also decreased FEN brain levels following drug administration. Immunization blocked FEN-induced, but not morphine-induced, rate-disrupting effects on schedule-controlled responding. Vaccination prevented decreases on physiological measures (oxygen saturation, heart rate) and reduction in overall activity following FEN administration in male rats. The impact of FEN on these measures was greater in unvaccinated male rats compared to unvaccinated female rats. Cross-reactivity assays showed anti-FEN antibodies bound to FEN and sufentanil but not to morphine, methadone, buprenorphine, or oxycodone. These data support further clinical development of this vaccine to address OUD in humans."
In the lab: Therese Kosten, professor of psychology and director of the Developmental, Cognitive & Behavioral Neuroscience program and Colin Haile, research associate professor of psychology and the Texas Institute for Measurement, Evaluation and Statistics (TIMES), and a founding member of the UH Drug Discovery Institute.
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