Been Lurking here for a while. This has been one of the best places to learn about the seedy side of cycling. Thanks for all the info that has been shared.
I’m posting because I found an interesting read on HemAssist in the medical literature. It’s a literature review of three types of artificial blood. It explains the history of HemAssist and why it was pulled from the trials (about 4-5x as many trauma patients died as the control group that was given saline).
“A review of blood substitutes: examining the history, clinical trial results, and ethics of hemoglobin-based oxygen carriers” by Jiin-Yu Chen; Michelle Scerbo; George Kramer
http://www.scielo.br/scielo.php?pid=S1807-59322009000800016&script=sci_arttext
A couple of important points to note that relate to doping:
1. “Baxter evaluated recombinant hemoglobin formulations for a several more years and eventually terminated its HBOC program.” So the phase III testing program was terminated in 1998, but Baxter would have had this stuff around for several more years. This puts the lie to Fabiani’s claim that after 1998 it was unavailable because the studies had been cancelled.
2. “It also exhibits a long shelf life when stored in a freezer.” So, it could have been around for many years after the clinical trials ended.
3. “The cause for the increased mortality could not be established from that data. However, researchers speculated that it was a result of the known vasopressor effects of hemoglobin solutions.” Meaning that it caused the constriction of blood vessels. I’m curious how much constriction would occur if someone took ¼ or ½ a unit? Would it matter for a cyclist just looking to get an extra 2-3%?
Here are my thoughts. I am not convinced by a couple of people speculating and by a vo2 max study of a different artificial blood, that this stuff would not benefit a cyclist. Interestingly, the study of Hemopure caused a decrease in heart rate of 10 bpm. So I’m assuming that while VO2 Max was not improved the same way the it would have with an infusion of red blood cells, it did improve some aspect of cycling performance.
http://www.ncbi.nlm.nih.gov/pubmed/17024639 I need to see something more substantive that this drug would not improve O2 transfer to the muscles.
I’m thinking that it’s possible that someone could use EPO, and this stuff in conjunction. Use the EPO to get hematocrit up to the low 50s. Then use a small dose of the HemAssist because it does not thicken the blood, but still provides oxygen carrying capacity. It’s a wild guess, but what do you think?