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Capsaicin Nanoparticle in Patient With Painful Diabetic Neuropathy

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified April 2013 by Pongsatorn Meesawatsom, Mahidol University.
Recruitment status was:  Active, not recruiting
Thailand Research Fund
Information provided by (Responsible Party):
Pongsatorn Meesawatsom, Mahidol University Identifier:
First received: May 15, 2010
Last updated: April 10, 2013
Last verified: April 2013
The objectives of this study are to determine efficacy and safety of 0.75% topical capsaicin nanoparticle preparation versus placebo in patient with painful diabetic neuropathy.

Condition Intervention Phase
Painful Diabetic Neuropathy Drug: 0.75% capsaicin nanoparticle cream Drug: Placebo Phase 2 Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: Study of Topical Preparation of Capsaicin Nanoparticle in Patient With Painful Diabetic Neuropathy

Resource links provided by NLM:

Further study details as provided by Pongsatorn Meesawatsom, Mahidol University:

Primary Outcome Measures:
  • Pain relief from pain score reduction, using visual analog scale (VAS) [ Time Frame: 12 weeks ]

Estimated Enrollment: 60
Study Start Date: September 2009
Estimated Study Completion Date: December 2013
Estimated Primary Completion Date: October 2013 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Placebo Comparator: Placebo
Matched gel base of capsaicin nanoparticle
Drug: Placebo
Identical cream base of nanoparticle apply to area with neuropathic pain twice daily for 12 weeks
Experimental: Capsaicin
0.075% capsaicin nanoparticle gel
Drug: 0.75% capsaicin nanoparticle cream
0.75% capsaicin nanoparticle cream apply to area with neuropathic pain twice daily for 12 weeks

Detailed Description:

Painful diabetic neuropathy is the most common cause of neuropathic pain. 0.075% topical capsaicin has been used to treat the pain. Because of high concentration, conventional capsaicin topical preparation causing burning sensation and required several time of applications per day.

The nanoparticle of capsaicin topical preparation was developed with expectation of remaining efficacy, minimizing burning sensation and improving convenience of use.


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • History of type 2 Diabetes mellitus
  • Peripheral neuropathy
  • Stabilized on pain medication for at least one month
  • No previous invasive intervention for pain relief

Exclusion Criteria:

  • Local wound or any skin abnormality in the applicable area
  • Allergic to capsaicin
  • Refuse to participate or give consent
  • Has other significant disease or receive medication that may worsen neuropathy
  Contacts and Locations
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Please refer to this study by its identifier: NCT01125215

Ramathibodi Hospital
Bangkok, Thailand, 10400
Thammasat University Hospital
Pathumthani, Thailand, 12120
Sponsors and Collaborators
Mahidol University
Thailand Research Fund
Study Director: Chuthamanee Suthisisang, PhD. Faculty of Pharmacy,Mahidol University
  More Information

Responsible Party: Pongsatorn Meesawatsom, Mr., Mahidol University Identifier: NCT01125215     History of Changes
Other Study ID Numbers: MUPYPM-01
Study First Received: May 15, 2010
Last Updated: April 10, 2013

Keywords provided by Pongsatorn Meesawatsom, Mahidol University:
Painful diabetic neuropathy
Quantitative Sensory Testing

Additional relevant MeSH terms:
Peripheral Nervous System Diseases
Diabetic Neuropathies
Neuromuscular Diseases
Nervous System Diseases
Neurologic Manifestations
Signs and Symptoms
Diabetes Complications
Diabetes Mellitus
Endocrine System Diseases
Dermatologic Agents
Sensory System Agents
Peripheral Nervous System Agents
Physiological Effects of Drugs processed this record on September 21, 2017