Summary: Suzetrigine acts on pain-sensing nerve cells in the periphery (the nerves outside the brain and spine). It has little effect on the brain. That makes it a much safer choice than opioids. The US FDA is giving Suzetrigine, a new class of drugs, a priority review. This drug is especially useful for moderate to severe pain caused by chronic peripheral neuropathy.
The US FDA has accepted the application for a whole new class of drug. It is a painkiller that works as well as opioids but without their side effects. This drug, called Suzetrigine, is good for moderate to severe pain. If approved, it will change the way pain is treated. It works by stopping pain signals before they reach the brain.
This news matters because so many people live with chronic pain. Almost everyone will have pain at some point in life. Opioids work for many people. But they also cause dependence and addiction in many. That is why about a million adults in the US need treatment for opioid use disorder. Chronic pain specialists point to this problem, which makes new treatments like Suzetrigine crucial.
There are many painkillers, but chronic pain is a complex problem. What works for one person may not work for another. So it is no surprise that chronic pain is poorly controlled in so many people. The truth is simple. We still need painkillers that work and are safer. Until we find them, doctors will need to prescribe opioids in many cases. This new drug offers hope. The US FDA has accepted the application, so the drug is far along. It may reach patients in the coming years.
For mild to moderate pain, doctors usually use non-steroidal anti-inflammatory drugs (NSAIDs). These drugs are fairly safe. They work by calming inflammation and cutting the output of certain chemicals like prostaglandins. So they reduce pain in the periphery. They may also change how the brain senses the pain.
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NSAIDs work for most people but not for all. They often fail when the pain is severe. They also fail in complex chronic pain where inflammation is not the main cause. In these cases, doctors might add other drugs to NSAIDs to dull pain, like antidepressants, anti-seizure drugs, and others. But those added drugs help in only a small number of cases. They also cause many side effects.
So it is no surprise that doctors often need to prescribe opioids. Opioids, unlike other drugs, bind to opioid receptors (mu, kappa, delta) in the brain, spinal cord, and other parts of the body. They work mainly through receptors in the brain. That makes them more likely to cause dependence or even addiction. An overdose on these drugs can also be a serious health threat. Interventional pain management in St. Louis can help in these cases and treat pain without opioids, but with limited success until now.
So this new drug is great news for millions of adults in the US who live with poorly controlled pain. The US FDA has accepted the application for Suzetrigine. This drug is one of a kind. It works in a way no other painkiller does. It acts in the periphery, so it stops pain signals from traveling to the brain. That means it is not likely to cause the side effects typical of opioids. Its safety record looks excellent.
This new drug, Suzetrigine, is a voltage-gated sodium channel blocker. It stops pain-sensing receptors, or nociceptive neurons (pain-sensing nerve cells), from making pain signals. It acts mainly on peripheral nerves, though it may have some effect on the brain too. It also blocks how pain signals travel.
The US FDA sees a gap in pain treatment, so it has given this drug a priority review. This drug may be especially helpful for nerve pain from chronic peripheral neuropathy. That kind of pain is more common in people with diabetes. It is also likely to work for other kinds of nerve pain. That is a big deal, because few drugs today help with nerve pain or neuropathies. Chronic pain specialists are eager for this drug, since it promises safer and better treatment for patients.
Frequently asked questions
What is suzetrigine used for?
Suzetrigine is a painkiller for moderate to severe pain. It may be especially helpful for nerve pain from chronic peripheral neuropathy, the kind more common in people with diabetes. It is likely to help other kinds of nerve pain too. That matters because few drugs today help with nerve pain or neuropathy. Many people still live with poorly controlled pain.
How does suzetrigine work?
Suzetrigine is a voltage-gated sodium channel blocker. It stops pain-sensing nerve cells, called nociceptors, from making pain signals. It also slows how those signals travel. It acts mainly on the peripheral nerves rather than the brain. So it keeps the pain message from reaching the brain in the first place. No other painkiller works this way.
Is suzetrigine an opioid?
No. Opioids bind to mu, kappa and delta receptors in the brain, spinal cord and other parts of the body. Because they work mainly through the brain, they are more likely to cause dependence and addiction. Suzetrigine is a whole new class of drug. It works out in the peripheral nerves, with little effect on the brain.
Is suzetrigine safer than opioids?
That is the promise. Suzetrigine is said to work as well as opioids for moderate to severe pain, but without their side effects. It works in the periphery, so it is not likely to cause the problems typical of opioids. About a million adults in the US need treatment for opioid use disorder. That is why a safer option matters.
Source:
Vertex Announces FDA Acceptance of New Drug Application for Suzetrigine for the Treatment of Moderate-to-Severe Acute Pain | Vertex Pharmaceuticals. (n.d.). Retrieved October 2, 2024, from https://investors.vrtx.com/news-releases/news-release-details/vertex-announces-fda-acceptance-new-drug-application-suzetrigine
Dr. Gurpreet Singh Padda, MD, MBA, MHP
