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Development of Recombinant Proteins to Treat Chronic Pain
Published on: April 11, 2018
Recent development in therapeutics for breakthrough pain
1Cleveland Clinic Lerner School of Medicine, Case Western Reserve University, The Harry R Horvitz Center for Palliative Medicine, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH 44195, USA. davism6@ccf.org
Abstract:
Breakthrough pain is defined as transitory flares of pain. Breakthrough pain is caused by cancer, cancer complications, treatment or comorbidities. The usual onset to maximum breakthrough pain intensity time is 3 min and duration is 30 min; therefore, the assessment for response needs to be at short intervals. The rapid onset and offset of pain results in inadequate responses when oral opioids are used to manage pain flares. Several strategies have been used to manage breakthrough pain: titration of the chronic opioid, independent titration of rescue opioids and alternative routes. Buccal fentanyl has a rapid onset to analgesia and appears to be superior to oral morphine. Newer fentanyl preparations have been released to manage breakthrough pain in the opioid-tolerant individual. Other routes of administration that have a rapid onset to analgesia include intranasal hydrophilic and lipophilic opioids, inhaled opioids delivered by special delivery devices and parenteral morphine. In a small series of patients experiencing severe flares of pain with spinal opioids unrelieved by parenteral opioids, sublingual ketamine and bolus doses of intrathecal local anesthetics have been effective. Nonpharmacological approaches to managing activity-related pain include radiation therapy, surgical correction of impending fractures, kyphoplasty and radioisotopes.
Insights
Breakthrough pain, characterized by rapid flares, requires swift management. Newer fentanyl formulations and alternative routes offer faster relief than traditional oral opioids for cancer pain.
Area of Science:
- Oncology
- Pain Management
- Pharmacology
Background:
- Breakthrough pain presents as sudden, short-lived pain flares, often linked to cancer or its treatment.
- The rapid onset and offset of these pain episodes necessitate rapid-acting analgesia.
- Conventional oral opioids are frequently insufficient for managing these intense pain flares effectively.
Purpose of the Study:
- To review current strategies for managing breakthrough pain.
- To evaluate the efficacy of various pharmacological and non-pharmacological interventions.
- To highlight advancements in pain management for opioid-tolerant individuals.
Main Methods:
- Review of literature on breakthrough pain management strategies.
- Analysis of different routes of administration for analgesics.
- Inclusion of non-pharmacological treatment options.
Main Results:
- Buccal fentanyl demonstrates faster analgesia compared to oral morphine.
- Newer fentanyl preparations and alternative routes (intranasal, inhaled, parenteral) offer rapid pain relief.
- Sublingual ketamine and intrathecal local anesthetics showed effectiveness in severe cases.
- Non-pharmacological methods like radiation therapy and surgical interventions are viable for activity-related pain.
Conclusions:
- Rapid-onset analgesics are crucial for effective breakthrough pain management.
- Buccal fentanyl and other advanced formulations provide superior pain control.
- A multimodal approach, including non-pharmacological options, is essential for comprehensive breakthrough pain care.
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