Guest guest Posted June 25, 2010 Report Share Posted June 25, 2010 Here is his response to the times.The article by the Chicago Tribune and the warning letter from the FDA are fueled by a misconception. The chemical name of OSR#1 is N1N3-bis-(2-mercaptoethyl)isophthalamide which makes it sound to many like an exceptionally complex chemical with no natural components. However, looking at the structure of OSR it is easily seen that it contains a benzoate group (found in cranberries) and two cystamines (a metabolite of cysteine and found in all mammalian cells and on the terminal end of Coenzyme-A). The coupling of cystamine to benzoate is through the same type of amide linkage found in connecting amino acids to produce protein.The FDA description of a dietary supplement as extracted from their letter is: To be a dietary supplement, a product must, among other things, "bear [ ] or contain [ ] one or more...dietary ingredients" as defined in section 20 I (11)( I) of the Act, 21 U.S.c.§ 321 (ff)( I). Section 20 1(11)( 1) or the Act defines "dietary ingredient" as a vitamin, mineral, amino acid, herb or other botanical, or dietary substance for use by man to supplement the diet by increasing the total dietary intake. or a concentrate, metabolite, constituent, extract or combination of any dietary ingredient from the preceding categories. Using this description it is obvious to a biochemist that OSR#1 bears and contains two dietary ingredients. It appears as if the chemical name (which we had to place on the label) has confused this issue. Hopefully this can be cleared up.Regarding the toxic effects the FDA and Chicago Tribune comment on. The diarrhea and pancreas problems reported occurred during an UP/DOWN study to determine the LD-50 of OSR, that is “what amount of OSR would cause 50% of the test animals to die?â€Â. Problem was that during the experimentation, even to reach the 5 grams/kg body weight they finally achieved, the researchers had to give the OSR (dissolved in corn oil) at three different times during the day. Even then the test animals showed no weight loss or ataxia or other signs of toxicity except diarrhea and a pancreas abnormality. They were giving these animals massive doses (e.g. 1,000 to 5,000 times the recommended level for humans) trying to kill them. Almost all supplemental materials would cause some problems at these levels and the LD-50 of OSR (decided to be greater than 5 g/kg) is considerably below the LD-50 of some commonly used supplemental compounds used today. For example, a 220 lb (100 kg) person would have to take 500 grams/day or 5,000 OSR capsules/day to reach the 5 g/kg body weight level. We recommend 1 capsule or 0.1 gram/day level usage (i.e. 100mg) which is 5,000 times below the 5 gram/kg level in this example. When the long term study was done and the maximum amount tested was 1 gram/kg body weight the diarrhea and pancreas issues disappeared. At 1 gram/kg a 220 lb person would have to take 1,000 capsules/day to reach a level where no toxic effects were noted. In it’s initial letter responding to our Premarket Notification the FDA did not mention these test animal toxicity studies as being of any concern. I don’t know what changed their minds to make them go back and review this, but their review and the comments in this recent letter do not reflect a concern I would agree with.Also, OSR has never been promoted by CTI Science as a treatment for any specific disease and FDA disclaimers are on every package.I would point out that the FDA warning letter was not based on any reported adverse effect. Since CTI Science has been selling OSR (about 2 years) we have not had one severe adverse effect reported to our FDA based adverse effect reporting system. We have had many very positive responses from physicians and parents regarding the use of OSR. However, the fact is that I have to obey the FDA directive or risk damage to my co-workers as well as myself, and/or spend the funds to legally counter the FDA decision. What to do is under study. But from the above, you can see why I strongly believe that OSR is a dietary supplement by FDA criteria and that it is without detectable toxicity at the levels recommended.Boyd E. Haley, PhD Quote Link to comment Share on other sites More sharing options...
Guest guest Posted June 25, 2010 Report Share Posted June 25, 2010 Here is his response to the times.The article by the Chicago Tribune and the warning letter from the FDA are fueled by a misconception. The chemical name of OSR#1 is N1N3-bis-(2-mercaptoethyl)isophthalamide which makes it sound to many like an exceptionally complex chemical with no natural components. However, looking at the structure of OSR it is easily seen that it contains a benzoate group (found in cranberries) and two cystamines (a metabolite of cysteine and found in all mammalian cells and on the terminal end of Coenzyme-A). The coupling of cystamine to benzoate is through the same type of amide linkage found in connecting amino acids to produce protein.The FDA description of a dietary supplement as extracted from their letter is: To be a dietary supplement, a product must, among other things, "bear [ ] or contain [ ] one or more...dietary ingredients" as defined in section 20 I (11)( I) of the Act, 21 U.S.c.§ 321 (ff)( I). Section 20 1(11)( 1) or the Act defines "dietary ingredient" as a vitamin, mineral, amino acid, herb or other botanical, or dietary substance for use by man to supplement the diet by increasing the total dietary intake. or a concentrate, metabolite, constituent, extract or combination of any dietary ingredient from the preceding categories. Using this description it is obvious to a biochemist that OSR#1 bears and contains two dietary ingredients. It appears as if the chemical name (which we had to place on the label) has confused this issue. Hopefully this can be cleared up.Regarding the toxic effects the FDA and Chicago Tribune comment on. The diarrhea and pancreas problems reported occurred during an UP/DOWN study to determine the LD-50 of OSR, that is “what amount of OSR would cause 50% of the test animals to die?â€Â. Problem was that during the experimentation, even to reach the 5 grams/kg body weight they finally achieved, the researchers had to give the OSR (dissolved in corn oil) at three different times during the day. Even then the test animals showed no weight loss or ataxia or other signs of toxicity except diarrhea and a pancreas abnormality. They were giving these animals massive doses (e.g. 1,000 to 5,000 times the recommended level for humans) trying to kill them. Almost all supplemental materials would cause some problems at these levels and the LD-50 of OSR (decided to be greater than 5 g/kg) is considerably below the LD-50 of some commonly used supplemental compounds used today. For example, a 220 lb (100 kg) person would have to take 500 grams/day or 5,000 OSR capsules/day to reach the 5 g/kg body weight level. We recommend 1 capsule or 0.1 gram/day level usage (i.e. 100mg) which is 5,000 times below the 5 gram/kg level in this example. When the long term study was done and the maximum amount tested was 1 gram/kg body weight the diarrhea and pancreas issues disappeared. At 1 gram/kg a 220 lb person would have to take 1,000 capsules/day to reach a level where no toxic effects were noted. In it’s initial letter responding to our Premarket Notification the FDA did not mention these test animal toxicity studies as being of any concern. I don’t know what changed their minds to make them go back and review this, but their review and the comments in this recent letter do not reflect a concern I would agree with.Also, OSR has never been promoted by CTI Science as a treatment for any specific disease and FDA disclaimers are on every package.I would point out that the FDA warning letter was not based on any reported adverse effect. Since CTI Science has been selling OSR (about 2 years) we have not had one severe adverse effect reported to our FDA based adverse effect reporting system. We have had many very positive responses from physicians and parents regarding the use of OSR. However, the fact is that I have to obey the FDA directive or risk damage to my co-workers as well as myself, and/or spend the funds to legally counter the FDA decision. What to do is under study. But from the above, you can see why I strongly believe that OSR is a dietary supplement by FDA criteria and that it is without detectable toxicity at the levels recommended.Boyd E. Haley, PhD Quote Link to comment Share on other sites More sharing options...
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