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Related Concept Videos

Analgesia and Pain Management01:25

Analgesia and Pain Management

Pain is critical to various clinical pathologies, provoking an urgent need for effective management. Pain, whether acute or chronic, is a complex neurochemical process. Its alleviation depends on the type, with nonopioid analgesics effective for mild to moderate pain, such as musculoskeletal or inflammatory pain, while neuropathic pain responds best to anticonvulsants, tricyclic antidepressants, or serotonin/norepinephrine reuptake inhibitors. For severe acute or chronic pain, opioids may be...
Non-gated Ion Channels01:24

Non-gated Ion Channels

Ion channels are specialized proteins on the plasma membrane that allow charged ions to pass down their electrochemical gradient. Their main function is to maintain the membrane potential which is critical for cell viability. These channels are either gated or non-gated and can transport more than a thousand ions within milliseconds for the cellular event to occur.
Compared to the gated ion channels, the non-gated channels, also known as leakage or passive channels, have no gating mechanism.
Opioid Analgesics: Synthetic and Semisynthetic Opioids01:15

Opioid Analgesics: Synthetic and Semisynthetic Opioids

Synthetic and semisynthetic opioids are pivotal in pain management and tackling opioid addiction. Semisynthetic opioids, including morphinans (morphine derivatives), oxycodone, oxymorphone, hydrocodone, and hydromorphone, have improved pharmacokinetic profiles compared to morphine. Additionally, heroin and 6-MAM (6-Monoacetylmorphine) show better CNS penetration than morphine due to heightened lipid solubility. Hydromorphone, a potent opioid, undergoes hepatic metabolism to form the active...
Ligand-Gated Ion Channel Receptor: Gating Mechanism01:30

Ligand-Gated Ion Channel Receptor: Gating Mechanism

Ligand-gated ion channels are transmembrane proteins that play a vital role in intercellular communication and functions of the nervous system. They allow the influx of ions across the membrane once the neurotransmitter binds, allowing the subsequent transmission of electrical excitation across the neurons. Other ligand-gated ion channels, like the γ-aminobutyric acid (GABA) receptor, permit anions like chloride into the cells on the binding of the GABA molecule. Their entry into the cell...
Opioid Receptors: Overview01:22

Opioid Receptors: Overview

Opioid receptors, including the mu (μ, MOR), delta (δ, DOR), and kappa (κ, KOR) types, belong to the rhodopsin family of G protein-coupled receptors. These receptors are located throughout the central and peripheral nervous systems and in non-neuronal tissues such as macrophages and astrocytes. Opioid receptor ligands can be categorized into agonists or antagonists. Highly selective agonists include [d-Ala2, MePhe4, Gly(ol)5]-enkephalin or DAMGO for MOR, [D-Pen2, D-Pen5]-enkephalin or DPDPE for...
Ligand-gated Ion Channels01:19

Ligand-gated Ion Channels

Ligand-gated ion channels are transmembrane proteins with a channel for ions to pass through and a binding site for a ligand. The channel opens only when a ligand attaches to the binding site.
Three Subfamilies of Ligand-gated Ion Channels
Ligand-gated ion channels fall into three subfamilies. The 'Cys-loop' includes the nicotinic acetylcholine receptors, γ-aminobutyric acid (GABA), glycine, and 5-hydroxytryptamine receptors. The second one is the 'Pore-loop' channels that include the...

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Intracranial Pharmacotherapy and Pain Assays in Rodents
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Clinical Advances in Analgesic Drug Development from Ion Channel Modulators.

Ruike Kang1, Dan Wang1

  • 1Department of Chinese Medicine and Pharmacy, School of Pharmacy, Jiangsu University, Zhenjiang, 212013, China.

Current Medicinal Chemistry
|June 2, 2026
PubMed
Summary
This summary is machine-generated.

Novel ion channel modulators offer safer, more effective pain relief than traditional analgesics like NSAIDs and opioids. This review explores their clinical development, highlighting potential for improved pain management.

Keywords:
Pain therapeuticsanalgesicsclinical trials.ion channel modulatorspain managementpain signaling

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Area of Science:

  • Neuroscience
  • Pharmacology
  • Pain Management

Background:

  • Traditional analgesics (NSAIDs, opioids) have limited efficacy and significant side effects, necessitating safer alternatives.
  • Ion channels are crucial in pain signaling, making them promising targets for novel pain therapeutics.
  • Existing treatments for chronic pain are insufficient, driving research into new pain management strategies.

Purpose of the Study:

  • To comprehensively review the clinical development of ion channel modulators for pain relief.
  • To examine key ion channel classes (VGCCs, VGSCs, VGKCs, TRPs, nAChRs, P2X, ASICs) and their role in pain.
  • To summarize advances in clinical trials and identify challenges in translating these therapies.

Main Methods:

  • Systematic review of clinical development for ion channel modulators.
  • Discussion of specific ion channel targets and their associated drug candidates.
  • Analysis of clinical trial data and therapeutic successes/failures.

Main Results:

  • Ion channel modulators show promise as alternatives to conventional analgesics.
  • Ziconotide (for VGCCs) is a notable example of a successful ion channel-targeted therapy.
  • Emerging candidates targeting various ion channels are progressing through clinical trials.

Conclusions:

  • Ion channel modulation represents a strategic approach to developing safer and more effective pain therapeutics.
  • Further research and development are needed to overcome challenges in translating these therapies.
  • These novel agents hold significant potential to improve outcomes for patients with chronic pain.