The Effect of Caffeine on Acupuncture Analgesia With the Human Pain Model

NCT ID: NCT02577770

Last Updated: 2020-02-17

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

200 participants

Study Classification

INTERVENTIONAL

Study Start Date

2015-05-31

Study Completion Date

2019-12-31

Brief Summary

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This is a single center, double blind, randomized, parallel-group study to assess the effect of 200mg caffeine,400mg caffeine and decaffeinated on acupuncture analgesia with the human pain model.

Detailed Description

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Aim: To evaluate the effect of caffeine on acupuncture analgesia with the human pain model.

Design: Double blind, randomized controlled trial will be performed in Chengdu. The study including two pain models : Potassium pain model and Capsaicin pain model. Both models including the following several groups: 200mg caffeine group, 400mg caffeine group, and decaffeinated group. Participants will be randomly assign to the three groups. Each participants will receive coffee drinking and acupuncture intervention. Each subjects of the Potassium pain model will receive be measured the pain at baseline, 30 minutes after drinking coffee, 10, 20, 30 minutes during acupuncture and 30 minutes after acupuncture intervention completed. Blood samples will be collected at baseline, 30 minutes after drinking coffee, 30 minutes during acupuncture and 30 minutes after acupuncture intervention completed. Each subjects of the capsaicin pain model will be measured the spontaneous pain with VAS scale and the area of hyperalgesia with Von Frey hair at the time of 5 minutes after topical application of capsaicin , 30 minutes after drinking coffee, 10, 20, 30 minutes during acupuncture and 30 minutes after acupuncture intervention completed. Blood samples will be collected at the time of 5 minutes after topical application of capsaicin, 30 minutes after drinking coffee, 30 minutes during acupuncture and 30 minutes after acupuncture intervention completed.

Conditions

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Pain

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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200mg caffeine plus acupuncture

In healthy subjects

Group Type EXPERIMENTAL

acupuncture

Intervention Type DEVICE

therapeutic acupuncture treatment with actual needles

200mg caffeine

Intervention Type DIETARY_SUPPLEMENT

8g coffee, po

400mg caffeine plus acupuncture

In healthy subjects

Group Type EXPERIMENTAL

acupuncture

Intervention Type DEVICE

therapeutic acupuncture treatment with actual needles

400mg caffeine

Intervention Type DIETARY_SUPPLEMENT

16g coffee, po

Decaffeinated plus acupuncture

In healthy subjects

Group Type PLACEBO_COMPARATOR

acupuncture

Intervention Type DEVICE

therapeutic acupuncture treatment with actual needles

Decaffeinated

Intervention Type DIETARY_SUPPLEMENT

decaffeinated coffee, po

Interventions

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acupuncture

therapeutic acupuncture treatment with actual needles

Intervention Type DEVICE

200mg caffeine

8g coffee, po

Intervention Type DIETARY_SUPPLEMENT

400mg caffeine

16g coffee, po

Intervention Type DIETARY_SUPPLEMENT

Decaffeinated

decaffeinated coffee, po

Intervention Type DIETARY_SUPPLEMENT

Eligibility Criteria

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Inclusion Criteria

* Age of a subject is between 18 and 40 years old, male or female
* No known active ongoing disease, in good general health, with a BMI ranging from 18 to 30 kg/m2
* No history of mental disorders,infectious diseases and bleeding disorders. No history of allergic reaction. Females who are not pregnant, lactating, of child-bearing potential, or have no a pregnancy plan within 3 months
* No smoking, drinking alcohol
* No intake of beverage, food and alcohol ,which contains caffeine at least two hours
* No use of any of the methyl purine drugs. No use of any of the drugs ,which can affect the half-life of caffeine, such as: cimetidine, steroids, growth hormone, etc
* No previous experience with acupuncture or other related treatments within 3 days
* Reliable, cooperative, and of adequate intelligence to record the requested information on the questionnaire form
* Informed consent form must be signed by subjects

Exclusion Criteria

* Subject with serious blood, heart, liver, kidney disease, digestive, or hematopoietic system disease
* Subject with serious mental disorders, infectious diseases and bleeding disorders. Subject has a history of allergic reaction. Females who are pregnant, lactating, of child-bearing potential, or have a pregnancy plan within 3 months;
* Prior use of any type of analgesic drugs before study within 5 half-lives of the drugs
* Use of any of the methyl purine drugs. Use of any of the drugs, which can affect the half-life of caffeine, such as: Sympathomimetic drugs, theophylline drugs , α or β-blockers drugs, and any antihypertensive drugs, etc
* Ingestion of any caffeine-containing beverage, food or alcohol 6 hours or less before study
* Subject has a previous experience with acupuncture or other related treatments within 7 days
* Suffered from medical or psychiatric disorders that prevented them from participating in the study
* Subject who belongs to acupuncture-phobia
Minimum Eligible Age

18 Years

Maximum Eligible Age

40 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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University of Leipzig

OTHER

Sponsor Role collaborator

Boston University

OTHER

Sponsor Role collaborator

Chengdu University of Traditional Chinese Medicine

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Chengdu University of Traditional Chinese Medicine

Chengdu, Sichuan, China

Site Status

Countries

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China

Other Identifiers

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2014TD0018

Identifier Type: -

Identifier Source: org_study_id

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