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Published in: BMC Complementary Medicine and Therapies 1/2010

Open Access 01-12-2010 | Research article

The effect of Neuragen PN® on Neuropathic pain: A randomized, double blind, placebo controlled clinical trial

Author: Li Li

Published in: BMC Complementary Medicine and Therapies | Issue 1/2010

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Abstract

Background

A double blind, randomized, placebo controlled study to evaluate the safety and efficacy of the naturally derived topical oil, "Neuragen PN®" for the treatment of neuropathic pain.

Methods

Sixty participants with plantar cutaneous (foot sole) pain due to all cause peripheral neuropathy were recruited from the community. Each subject was randomly assigned to receive one of two treatments (Neuragen PN® or placebo) per week in a crossover design. The primary outcome measure was acute spontaneous pain level as reported on a visual analog scale.

Results

There was an overall pain reduction for both treatments from pre to post application. As compared to the placebo, Neuragen PN® led to significantly (p < .05) greater pain reduction. Fifty six of sixty subjects (93.3%) receiving Neuragen PN® reported pain reduction within 30 minutes. This reduction within 30 minutes occurred in only twenty one of sixty (35.0%) subjects receiving the placebo. In a break out analysis of the diabetic only subgroup, 94% of subjects in the Neuragen PN® group achieved pain reduction within 30 minutes vs 11.0% of the placebo group. No adverse events were observed.

Conclusions

This randomized, placebo controlled, clinical trial with crossover design revealed that the naturally derived oil, Neuragen PN®, provided significant relief from neuropathic pain in an all cause neuropathy group. Participants with diabetes within this group experienced similar pain relief.

Trial registration

ISRCTN registered: ISRCTN13226601
Appendix
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Literature
1.
go back to reference Setacci C, de Donato G, Setacci F, Chisci E: Diabetic patients: epidemiology and the global impact. J Cardiovasc Surg. 2009, 50 (3): 263-273. Setacci C, de Donato G, Setacci F, Chisci E: Diabetic patients: epidemiology and the global impact. J Cardiovasc Surg. 2009, 50 (3): 263-273.
2.
go back to reference Attal, N: Drug treatment for neuropathic pain. Presse Med. 2008, 37 (2 Pt 2): 346-353. 10.1016/j.lpm.2007.07.023.CrossRef Attal, N: Drug treatment for neuropathic pain. Presse Med. 2008, 37 (2 Pt 2): 346-353. 10.1016/j.lpm.2007.07.023.CrossRef
3.
go back to reference Argoff CE, Backonja MM, Belgrade MJ, Bennett GJ, Clark MR, Cole BE, Fishbain DA, Irving GA, McCarberg BH, McLean MJ: Consensus guidelines: treatment planning and options. Mayo Clinic Proceedings. 2006, 81 (4): S12-S25.CrossRefPubMed Argoff CE, Backonja MM, Belgrade MJ, Bennett GJ, Clark MR, Cole BE, Fishbain DA, Irving GA, McCarberg BH, McLean MJ: Consensus guidelines: treatment planning and options. Mayo Clinic Proceedings. 2006, 81 (4): S12-S25.CrossRefPubMed
4.
go back to reference O'Connor AB: Neuropathic pain: quality-of-life impact, costs and cost effectiveness of therapy. Pharmacoeconomics. 2009, 27 (2): 95-112. 10.2165/00019053-200927020-00002.CrossRefPubMed O'Connor AB: Neuropathic pain: quality-of-life impact, costs and cost effectiveness of therapy. Pharmacoeconomics. 2009, 27 (2): 95-112. 10.2165/00019053-200927020-00002.CrossRefPubMed
5.
go back to reference Duloxetine: new indication. Depression and diabetic neuropathy: too many adverse effects. Prescrire Int. 2006, 15 (85): 168-172. Duloxetine: new indication. Depression and diabetic neuropathy: too many adverse effects. Prescrire Int. 2006, 15 (85): 168-172.
6.
go back to reference Kent JT: Repertory of the homeopathic materia medica. 1982, New Delhi: World Homeopathic Links, 6 Kent JT: Repertory of the homeopathic materia medica. 1982, New Delhi: World Homeopathic Links, 6
7.
go back to reference Wiesenauer M, Gaus W, Bohnacker U, Häussler S: Efficiency of homeopathic preparation combinations in sinusitis. Results of a randomized double blind study with general practitioners. Arzneimittelforschung. 1989, 39 (5): 620-625.PubMed Wiesenauer M, Gaus W, Bohnacker U, Häussler S: Efficiency of homeopathic preparation combinations in sinusitis. Results of a randomized double blind study with general practitioners. Arzneimittelforschung. 1989, 39 (5): 620-625.PubMed
8.
go back to reference Jacobs J, Guthrie BL, Montes GA, Jacobs LE, Mickey-Colman N, Wilson AR, DiGiacomo R: Homeopathic combination remedy in the treatment of acute childhood diarrhea in Honduras. J Altern Complement Med. 2006, 12 (8): 723-732. 10.1089/acm.2006.12.723.CrossRefPubMed Jacobs J, Guthrie BL, Montes GA, Jacobs LE, Mickey-Colman N, Wilson AR, DiGiacomo R: Homeopathic combination remedy in the treatment of acute childhood diarrhea in Honduras. J Altern Complement Med. 2006, 12 (8): 723-732. 10.1089/acm.2006.12.723.CrossRefPubMed
9.
go back to reference Jacobs J, Fernandez EA, Merizalde B, Avila-Montes GA, Crothers D: The use of homeopathic combination remedy for dengue fever symptoms: a pilot RCT in Honduras. Homeopathy. 2007, 96 (1): 22-26. 10.1016/j.homp.2006.10.004.CrossRefPubMed Jacobs J, Fernandez EA, Merizalde B, Avila-Montes GA, Crothers D: The use of homeopathic combination remedy for dengue fever symptoms: a pilot RCT in Honduras. Homeopathy. 2007, 96 (1): 22-26. 10.1016/j.homp.2006.10.004.CrossRefPubMed
10.
go back to reference Maiwald VL, Weinfurtner T, Mau J, Connert WD: Therapy of common cold with a homeopathic combination preparation in comparison with acetylsalicylic acid. A controlled, randomized double-blind study. Arzneimittelforschung. 1988, 38 (4): 578-582.PubMed Maiwald VL, Weinfurtner T, Mau J, Connert WD: Therapy of common cold with a homeopathic combination preparation in comparison with acetylsalicylic acid. A controlled, randomized double-blind study. Arzneimittelforschung. 1988, 38 (4): 578-582.PubMed
11.
go back to reference Ghafourian T, Zandasrar P, Hamishekar H, Nokhodchi A: The effect of penetration enhancers on drug delivery through skin: a QSAR study. J Control Release. 2004, 99 (1): 113-125. 10.1016/j.jconrel.2004.06.010.CrossRefPubMed Ghafourian T, Zandasrar P, Hamishekar H, Nokhodchi A: The effect of penetration enhancers on drug delivery through skin: a QSAR study. J Control Release. 2004, 99 (1): 113-125. 10.1016/j.jconrel.2004.06.010.CrossRefPubMed
12.
go back to reference Nokhodchi A, Sharabiani K, Rashidi MR, Ghafourian T: The effect of terpene concentrations on the skin penetration of diclofenac sodium. Int J Pharm. 2007, 335 (1-2): 97-105. 10.1016/j.ijpharm.2006.10.041.CrossRefPubMed Nokhodchi A, Sharabiani K, Rashidi MR, Ghafourian T: The effect of terpene concentrations on the skin penetration of diclofenac sodium. Int J Pharm. 2007, 335 (1-2): 97-105. 10.1016/j.ijpharm.2006.10.041.CrossRefPubMed
13.
go back to reference Melzack R: The short-form McGill Pain Questionnaire. Pain. 1987, 30 (2): 191-197. 10.1016/0304-3959(87)91074-8.CrossRefPubMed Melzack R: The short-form McGill Pain Questionnaire. Pain. 1987, 30 (2): 191-197. 10.1016/0304-3959(87)91074-8.CrossRefPubMed
14.
go back to reference Farrar JT, Young JP, LaMoreaux L, Werth JL, Poole RM: Clinical importance of changes in chronic pain intensity measured on an 11-point numerical pain rating scale. Pain. 2001, 94 (2): 149-158. 10.1016/S0304-3959(01)00349-9.CrossRefPubMed Farrar JT, Young JP, LaMoreaux L, Werth JL, Poole RM: Clinical importance of changes in chronic pain intensity measured on an 11-point numerical pain rating scale. Pain. 2001, 94 (2): 149-158. 10.1016/S0304-3959(01)00349-9.CrossRefPubMed
15.
go back to reference Shrout PE, Fleiss JL: Intraclass correlations: uses in assessing rater reliability. Psychol Bull. 1979, 2: 420-428. 10.1037/0033-2909.86.2.420.CrossRef Shrout PE, Fleiss JL: Intraclass correlations: uses in assessing rater reliability. Psychol Bull. 1979, 2: 420-428. 10.1037/0033-2909.86.2.420.CrossRef
16.
go back to reference Aring AM, Jones DE, Falko JM: Evaluation and prevention of diabetic neuropathy. Am Fam Physician. 2005, 71 (11): 2123-2128.PubMed Aring AM, Jones DE, Falko JM: Evaluation and prevention of diabetic neuropathy. Am Fam Physician. 2005, 71 (11): 2123-2128.PubMed
17.
go back to reference Lynch ME: The pharmacotherapy of chronic pain. Rheum Dis Clin North Am. 2008, 34 (2): 369-385. 10.1016/j.rdc.2008.04.001.CrossRefPubMed Lynch ME: The pharmacotherapy of chronic pain. Rheum Dis Clin North Am. 2008, 34 (2): 369-385. 10.1016/j.rdc.2008.04.001.CrossRefPubMed
18.
go back to reference Backonja M, Wallace MS, Blonsky ER, Cutler BJ, Malan P, Rauck R, Tobias J: NGX-4010, a high-concentration capsaicin patch, for the treatment of postherpetic neuralgia: a randomized, double-blind study. Lancet Neurology. 2008, 7: 1106-1112. 10.1016/S1474-4422(08)70228-X.CrossRefPubMed Backonja M, Wallace MS, Blonsky ER, Cutler BJ, Malan P, Rauck R, Tobias J: NGX-4010, a high-concentration capsaicin patch, for the treatment of postherpetic neuralgia: a randomized, double-blind study. Lancet Neurology. 2008, 7: 1106-1112. 10.1016/S1474-4422(08)70228-X.CrossRefPubMed
19.
go back to reference Hayman M, Kam PCA: Capsaicin: A review of its pharmacology and clinical applications. Current Anaesthesia & Critical Care. 2008, 19: 338-343. 10.1016/j.cacc.2008.07.003.CrossRef Hayman M, Kam PCA: Capsaicin: A review of its pharmacology and clinical applications. Current Anaesthesia & Critical Care. 2008, 19: 338-343. 10.1016/j.cacc.2008.07.003.CrossRef
20.
go back to reference Fontelles MIM, Garcia CG: Role of cannabinoids in the management of neuropathic pain. CNS Drugs. 2008, 22 (8): 645-653. 10.2165/00023210-200822080-00003.CrossRef Fontelles MIM, Garcia CG: Role of cannabinoids in the management of neuropathic pain. CNS Drugs. 2008, 22 (8): 645-653. 10.2165/00023210-200822080-00003.CrossRef
21.
go back to reference Alonso D, Khalil Z, Satkunanathan N, Livett BG: Drugs from the sea: conotoxins as drug leads for neuropathic pain and other neurological conditions. Mini Reviews in Medicinal Chemistry. 2003, 3: 785-787. 10.2174/1389557033487746.CrossRefPubMed Alonso D, Khalil Z, Satkunanathan N, Livett BG: Drugs from the sea: conotoxins as drug leads for neuropathic pain and other neurological conditions. Mini Reviews in Medicinal Chemistry. 2003, 3: 785-787. 10.2174/1389557033487746.CrossRefPubMed
Metadata
Title
The effect of Neuragen PN® on Neuropathic pain: A randomized, double blind, placebo controlled clinical trial
Author
Li Li
Publication date
01-12-2010
Publisher
BioMed Central
Published in
BMC Complementary Medicine and Therapies / Issue 1/2010
Electronic ISSN: 2662-7671
DOI
https://doi.org/10.1186/1472-6882-10-22

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