Patient Empowerment Program: A Rare Disease Podcast

n-Lorem Foundation

Join the nano-rare disease community! Interviews features leading physicians, scientists, biotech experts, and patient advocates. Lessons teach core concepts about drugs. Our host Dr. Crooke has led the creation of antisense technology and his foundation, n-Lorem, is using this powerful technology to discover, develop, and provide personalized experimental antisense oligonucleotide medicines to nano-rare patients for free, for life. n-Lorem is a non-profit organization established to apply the efficiency, versatility and specificity of antisense technology to charitably provide experimental antisense oligonucleotide (ASO) medicines to treat patients (less than 30 patients) that are the result of a single genetic defect unique to only one or very few individuals. The advantage of experimental ASO medicines is that they can be developed rapidly, inexpensively and are highly specific. n-Lorem was founded by Dr. Stan Crooke, who founded IONIS Pharmaceuticals in 1989 and, through his vision and leadership, established the company as the leader in RNA-targeted therapeutics. This podcast is produced by n-Lorem Foundation and hosted by Dr. Stanley T. Crooke, who is our Founder, CEO and Chairman. Our videographer is Jon Magnuson. Our producers are Kira Dineen, Jon Magnuson, Kim Butler, and Amy Williford. To learn more about n-Lorem, visit nlorem.org. Contact us at podcast@nlorem.org. read less

Drug Discovery Platforms
Jul 20 2022
Drug Discovery Platforms
There are three validated methods of discovering drugs – called platforms. Small molecule drugs (SMD), monoclonal antibodies (mAbs), and RNA-targeted drugs. SMDs are, you guessed it, very small! Remember that the size of chemicals is measured in units called Daltons, which is capitalized because it is named after the scientist who invented the term. The smallest chemical is a hydrogen ion, and it is 1 Dalton. Small molecule drugs are generally less than 500 Daltons. Because of this, they don’t carry much information and are not very specific in their ability to bind to proteins. A small change can alter the behavior of the drug almost entirely.mAbs are man-designed, biologically made proteins and typically, are 60-70 thousand Daltons. Clearly, they are in orders of magnitude larger than SMDs and, as you’d expect, they behave very differently from SMDs. Because mAbs contain more information than SMDs, they are generally more specific. Though mAbs are much larger than SMDs, only a little bit of information in the mAbs is used to specifically interact with their target and yet, all that chemical information in the protein can interact with many other things and thus cause problems.These are more specific than SMDs and can target a single site on a protein or chemical. RNA-targeted drugs, like antisense oligonucleotides (ASOs) and SiRNAs, use genetic information to target a specific site on an RNA. n-Lorem takes advantage of the specificity and versatility of ASO technology. ASOs are highly specific, and we can continuously learn from successes and failures of the technology to predict how the next one will behave. Discover the in-depth differences between the three platforms, their triumphs and failures in modern drug discovery, their benefits and limitations, and why gene therapy is not on the list of drug discovery platforms… yet.
How Drugs are Used
Jun 22 2022
How Drugs are Used
Drugs are chemicals. They are like all other chemicals except that humans make a value judgement that a particular chemical (drug) will effect a desired change in a living organism. However, it’s important to note that a drug does what it does and there is no perfectly specific drug. So, drug effects always represent a mosaic of chemical interaction and effects. Each drug has properties that we humans hope will bring benefit to other humans. Those are the desired effects, but every drug produces effects other than the desired effect. Those are called side effects. But the drug doesn’t care – it just does what it does. In fact, often, what is a desired effect in one therapeutic setting, may be a side effect in another.As pharmacologists and physicians interested in treating patients with drugs, we are interested in several properties that all drugs have. These include the mechanisms by which the desired objective is induced, pharmacodynamics, the mechanisms by which the drugs may induce side effects, toxicology, and the mechanisms by which the body distributes and clears a drug from the body, pharmacokinetics. Put simply, we are interested both in what the drug does to the body and what the body does to the drug.Because drugs are chemicals and chemical reactions depend on collisions between two or more chemicals, drug effects are concentration dependent. We adjust the concentration of a drug in the body by adjusting the dose. All effects of drugs, with the possible exception of allergic reactions, are dose dependent. Therefore, we are interested in the doses that produce a desired effect and the doses that may produce undesired effects, or adverse events (side effects). A drug that produces a desired effect at a much lower dose than the dose required to produce an adverse event is usually considered a better drug. When we assess the difference between the dose that produces a desired effect and a dose that produces an adverse event, we are now analyzing a drug performance in a sophisticated way, and we are thinking about the term therapeutic index. This is the key parameter that you should always be thinking about when you use a drug.