Pain medicine : the official journal of the American Academy of Pain Medicine
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Randomized Controlled Trial
NGX426, an oral AMPA-kainate antagonist, is effective in human capsaicin-induced pain and hyperalgesia.
Non-N-methyl-D-aspartate receptor subtypes modulate neurotransmitter release and mediate fast excitatory postsynaptic potentials. This study evaluated the effects of an oral prodrug to tezampanel, a selective α-amino-3-hydroxy-5-methly-4-isoxazole-proprionic acid/kainate receptor antagonist, on intradermal capsaicin-induced pain and hyperalgesia. ⋯ This study demonstrated that NGX426 reduces capsaicin-induced pain and hyperalgesia in human volunteers with low incidence of side effects that suggests that this class of drug may be effective in the treatment of clinical pain.
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Randomized Controlled Trial
Measurement of affective and activity pain interference using the Brief Pain Inventory (BPI): Cancer and Leukemia Group B 70903.
The Brief Pain Inventory (BPI) was designed to yield separate scores for pain intensity and interference. It has been proposed that the pain interference factor can be further broken down into unique factors of affective (e.g., mood) and activity (e.g., work) interference. The purpose of this analysis was to confirm this affective/activity interference dichotomy. ⋯ These results confirm that the BPI can be used to quantify the degree to which pain separately interferes with affective and activity aspects of a patient's everyday life. These findings will provide clinical trialists, pharmaceutical sponsors, and regulators with confidence in the flexibility of the BPI as they consider the use of this instrument to assist with understanding the patient experience as it relates to treatment.
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Randomized Controlled Trial
The effect of a Spanish virtual pain coach for older adults: a pilot study.
To pilot test the effects of a virtual pain coach on ambulatory Spanish-speaking older adults with pain from osteoarthritis. ⋯ Preliminary data indicate that the Spanish virtual pain coach might assist Spanish-speaking older adults to talk with their practitioner about their osteoarthritis pain and obtain opioid treatment changes, but that pain and depressive symptoms continue unchanged 1 month later. Additional refinement and testing is required for the Spanish-speaking virtual pain coach to determine acceptability and outcomes for assisting Spanish-speaking older adults to communicate about their pain with their primary care practitioner.
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Randomized Controlled Trial
Effectiveness of water physical therapy on pain, pressure pain sensitivity, and myofascial trigger points in breast cancer survivors: a randomized, controlled clinical trial.
To evaluate the effects of an 8-week water physical therapy program on cervical and shoulder pain, pressure sensitivity, and the presence of trigger points (TrPs) in breast cancer survivors. ⋯ An 8-week water therapy program was effective for improving neck and shoulder/axillary pain, and reducing the presence of TrPs in breast cancer survivors as compared with usual care; however, no significant changes in widespread pressure pain hyperalgesia were found.
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Randomized Controlled Trial Multicenter Study
A phase 2 study evaluating the efficacy and safety of a novel, proprietary, nano-formulated, lower dose oral diclofenac.
Safety concerns associated with nonsteroidal anti-inflammatory drugs (NSAIDs) have prompted the development of new formulations that minimize adverse events (AEs) and maintain efficacy. ⋯ Lower dose, nano-formulated diclofenac demonstrated good overall efficacy, prompt pain relief, and was well tolerated. These data suggest lower dose nano-formulated NSAIDs could be effective for acute pain and may potentially improve safety and tolerability as a result of using a lower overall dose.