Healthy VolunteersPhase 1NCT00355277
Local Anaesthetic Effects of Transcutaneous Amitriptyline
A Phase 1 study testing Amitriptyline in people with Healthy Volunteers, run by University Hospital, Clermont-Ferrand at 1 site in France.
Trial summary
The aim of this study is to assess the local anaesthetic effects of amitriptyline applied on the skin of human volunteers, considering the differential effects on mechanic and thermic sensitivity, the local and general tolerance, and the systemic absorption of the drug. Read more about this study
- Who is it for?
- Ages 18 to 40 years, men onlyHealthy volunteers can take part
- Conditions the study is for
- Healthy Volunteers
- What is being tested?
- Amitriptyline
- How many people
- 16 participants
- Where
- 1 siteFrance
- Study dates
- Nov 2005to Dec 2007
- Phase
- Phase 1
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 40 years
- Men only
- Healthy volunteers accepted
- Adult
Who may be able to join
- Healthy volunteers
Who cannot join
- history of intolerance to amitriptyline, lidocaine or prilocaine
- cardiac predisposition to intolerance to tricyclic antidepressants
Trial locations and contacts
1 site in 1 country.
France1 site
Centre de Pharmacologie Clinique /Cic
Clermont-Ferrand, Auvergne, 63003
About this study
Official title: Local Anaesthetic Effects of Transcutaneous Amitriptyline in Human Volunteers : a Controlled, Double-blinded, Randomised Study Versus Placebo and Transcutaneous Local Anaesthetic (EMLA(R))
The aim of this study is to assess the local anaesthetic effects of amitriptyline applied on the skin of human volunteers, considering the differential effects on mechanic and thermic sensitivity, the local and general tolerance, and the systemic absorption of the drug. The solution used for dilution of amitriptyline is the only one known to allow transcutaneous absorption of the drug [1]. Considering that the peripheral sensitive fibre is a possible site of action of tricyclic antidepressants for relieving neuropathic pain [2,3], this is a first step study before further assessment of the therapeutic effects of transcutaneous amitriptyline.
Read the detailed description
Sixteen male healthy volunteers are enrolled for this study. They receive in a randomised order on six regions of dorsal skin (after previous targetting by ink marks) the six following treatments : lidocaïne-prilocaïne anaesthetic cream (EMLA (R)), normal saline, amityptiline hydrochloride diluted in solution of water (%), isopropanol (%) , glycerol (%), titrated with sodium hydroxide for pH=8.5, at four different concentrations (0,25, 50 and 100 mM). The person in charge of local application does not participate to further examination. Immediately after one hour of application, the volunteer is examined, and then every 2 hours during 8 hours, and 24 hours after the end if application. Every trial includes, for every treated area, (a) measurement of sensitive and nociceptive threshold to Von Frey hair application, (b) assessment of sensation induced by cold and heat after Rolltemp TM application, (c) measurement of sensitive threshold to cold, then sensitive and nociceptive thresholds to heat with Thermotest TM, (d) clinical evaluation of tolerance to the treatment, (e) blood sampling for measuring amitriptylinemia (HPLC). The possible residual anaesthetic effects of the treatment are assessed one and three weeks after the application, by measurement of sensitive and nociceptive threshold to Von Frey hair application. The statistical analysis will use two-way ANOVA, considering the following factors : treatment, time, order, subject, subject/order.
- Conditions
- Healthy Volunteers
- Being tested
- Amitriptyline
- Keywords
- Tricyclic antidepressants, Neuropathic pain, Local anaesthesia, Transcutaneous
- Medical subject headings
- Neuralgia
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
AmitriptylineDrug
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted21 Jul 2006 (estimated)
- Study startNov 2005
- Study completionDec 2007
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (4)Papers the sponsor has linked to this study.
- Other trials for Healthy VolunteersStudies of the same condition, open and under way.
- More trials run by University Hospital, Clermont-FerrandThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 1
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- Double blind
- Enrolment
- 16 participants
Sponsor and investigators
- Lead sponsor
- University Hospital, Clermont-Ferrand
- Sponsor type
- University, hospital or other
- Investigators
- Claude DUBRAY, Pr, Principal investigator, CENTRE DE PHARMACOLOGIE CLINIQUEChristian DUALE, Dr, Study director, CENTRE DE PHARMACOLOGIE CLINIQUEPICKERING gisele, Dr, Study director, CENTRE DE PHARMACOLOGIE CLINIQUE
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00355277
- Sponsor's protocol ID
- CHU63-0014
- Status last verified
- Apr 2013
- First submitted
- 20 Jul 2006
- Last updated
- 4 Apr 2013
- Results posted
- No
Publications
Kissin I, McDanal J, Xavier AV. Topical lidocaine for relief of superficial pain in postherpetic neuralgia. Neurology. 1989 Aug;39(8):1132-3. doi: 10.1212/wnl.39.8.1132-a. No abstract available.
PubMed 2761713Sawynok J, Esser MJ, Reid AR. Antidepressants as analgesics: an overview of central and peripheral mechanisms of action. J Psychiatry Neurosci. 2001 Jan;26(1):21-9.
PubMed 11212590McQuay HJ, Tramer M, Nye BA, Carroll D, Wiffen PJ, Moore RA. A systematic review of antidepressants in neuropathic pain. Pain. 1996 Dec;68(2-3):217-27. doi: 10.1016/s0304-3959(96)03140-5.
PubMed 9121808Duale C, Daveau J, Cardot JM, Boyer-Grand A, Schoeffler P, Dubray C. Cutaneous amitriptyline in human volunteers: differential effects on the components of sensory information. Anesthesiology. 2008 Apr;108(4):714-21. doi: 10.1097/ALN.0b013e3181672632.
PubMed 18362604
Study at a glance
From the registry record, last updated by the sponsor on 4 Apr 2013. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Local Anaesthetic Effects of Transcutaneous Amitriptyline in Human Volunteers : a Controlled, Double-blinded, Randomised Study Versus Placebo and Transcutaneous Local Anaesthetic (EMLA(R))
- ClinicalTrials.gov ID
- NCT00355277
- Acronym / sponsor ID
- CHU63-0014
- Conditions
- Healthy Volunteers
- Keywords
- Tricyclic antidepressants, Neuropathic pain, Local anaesthesia, Transcutaneous
- Phase
- Phase 1
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 16 participants
- Lead sponsor
- University Hospital, Clermont-FerrandUniversity, hospital or other
- Study start
- Nov 2005
- Study completion
- Dec 2007
- First posted
- 21 Jul 2006 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The aim of this study is to assess the local anaesthetic effects of amitriptyline applied on the skin of human volunteers, considering the differential effects on mechanic and thermic sensitivity, the local and general tolerance, and the systemic absorption of the drug. The solution used for dilution of amitriptyline is the only one known to allow transcutaneous absorption of the drug [1]. Considering that the peripheral sensitive fibre is a possible site of action of tricyclic antidepressants for relieving neuropathic pain [2,3], this is a first step study before further assessment of the therapeutic effects of transcutaneous amitriptyline.
Detailed description
Sixteen male healthy volunteers are enrolled for this study. They receive in a randomised order on six regions of dorsal skin (after previous targetting by ink marks) the six following treatments : lidocaïne-prilocaïne anaesthetic cream (EMLA (R)), normal saline, amityptiline hydrochloride diluted in solution of water (%), isopropanol (%) , glycerol (%), titrated with sodium hydroxide for pH=8.5, at four different concentrations (0,25, 50 and 100 mM). The person in charge of local application does not participate to further examination. Immediately after one hour of application, the volunteer is examined, and then every 2 hours during 8 hours, and 24 hours after the end if application. Every trial includes, for every treated area, (a) measurement of sensitive and nociceptive threshold to Von Frey hair application, (b) assessment of sensation induced by cold and heat after Rolltemp TM application, (c) measurement of sensitive threshold to cold, then sensitive and nociceptive thresholds to heat with Thermotest TM, (d) clinical evaluation of tolerance to the treatment, (e) blood sampling for measuring amitriptylinemia (HPLC). The possible residual anaesthetic effects of the treatment are assessed one and three weeks after the application, by measurement of sensitive and nociceptive threshold to Von Frey hair application. The statistical analysis will use two-way ANOVA, considering the following factors : treatment, time, order, subject, subject/order.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- Double blind
Who may qualify
- Ages
- 18 to 40 years
- Sex
- Male only
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (1 listed)
- Healthy volunteers
Key exclusion criteria (2 listed)
- history of intolerance to amitriptyline, lidocaine or prilocaine
- cardiac predisposition to intolerance to tricyclic antidepressants
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Amitriptyline | Drug | – |
Primary outcome
Not reported in the source record.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 4 Apr 2013.
- Background: PubMed 2761713Kissin I, McDanal J, Xavier AV. Topical lidocaine for relief of superficial pain in postherpetic neuralgia. Neurology. 1989 Aug;39(8):1132-3. doi: 10.1212/wnl.39.8.1132-a. No abstract available.
- Background: PubMed 11212590Sawynok J, Esser MJ, Reid AR. Antidepressants as analgesics: an overview of central and peripheral mechanisms of action. J Psychiatry Neurosci. 2001 Jan;26(1):21-9.
- Background: PubMed 9121808McQuay HJ, Tramer M, Nye BA, Carroll D, Wiffen PJ, Moore RA. A systematic review of antidepressants in neuropathic pain. Pain. 1996 Dec;68(2-3):217-27. doi: 10.1016/s0304-3959(96)03140-5.
- Results publication: PubMed 18362604Duale C, Daveau J, Cardot JM, Boyer-Grand A, Schoeffler P, Dubray C. Cutaneous amitriptyline in human volunteers: differential effects on the components of sensory information. Anesthesiology. 2008 Apr;108(4):714-21. doi: 10.1097/ALN.0b013e3181672632.
- Related InfoLink provided by the sponsor.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Claude DUBRAY, Pr principal investigator
CENTRE DE PHARMACOLOGIE CLINIQUE
Christian DUALE, Dr study director
CENTRE DE PHARMACOLOGIE CLINIQUE
PICKERING gisele, Dr study director
CENTRE DE PHARMACOLOGIE CLINIQUE
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 1 study testing Amitriptyline in people with Healthy Volunteers, run by University Hospital, Clermont-Ferrand at 1 site in France.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 4 Apr 2013. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in France. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT00355277, which also lists 4 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 4 Apr 2013.