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Painful Diabetic NeuropathyPhase 2NCT00837941

A Study of Single Dose Pain Therapy in Patients With Painful Diabetic Neuropathy (0000-115)

A Phase 2 study testing Comparator: A: Pregabalin, Comparator: B: Duloxetine and Comparator: C: Diphenhydramine hydrochloride in people with Painful Diabetic Neuropathy, run by Merck Sharp & Dohme LLC.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

The purpose of this study is to determine if analgesic efficacy can be detected with single dose administration in patients with chronic neuropathic pain due to painful diabetic neuropathy. Read more about this study

Who is it for?
Ages 18 to 55 years
Conditions the study is for
Painful Diabetic Neuropathy
What is being tested?
Comparator: A: Pregabalin, Comparator: B: Duloxetine and Comparator: C: Diphenhydramine hydrochloride
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
0 participants
Where
No sites listed yet
Study dates
Apr 2009to Sep 2009
Phase
Phase 2
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 55 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • Patient has been treated for type 1 or 2 diabetes mellitus with glycosylated hemoglobin
  • Patient has pain in both feet that occurred after onset of diabetes
  • Patient agrees to maintain a consistent activity level throughout the study
  • Patient is not on chronic pain therapy, or is on a stable dose of one pain therapy
  • Female patients of reproductive potential must agree to use two acceptable methods of birth control through out the study
  • Patients taking a pain medication must be on a stable dose at least 1 month prior to participating in study

Who cannot join

  • Patient has a history of congestive heart failure
  • Patient has/had a seizure disorder
  • Patient has tried and failed 3 or more drugs to treat neuropathic pain
  • Patient is currently taking pregabalin or duloxetine hydrochloride
  • Patient has had a malignancy within the past 2 years (excluding basal cell carcinoma)
  • Patient has history of hepatitis B or C or HIV infection
  • Patient has skin-condition that may decrease sensitivity in area of neuropathic pain

About this study

Official title: Qualification of Single Dose Administration of Analgesic Therapy in the Treatment of Chronic Neuropathic Pain in Patients With Painful Diabetic Neuropathy

The purpose of this study is to determine if analgesic efficacy can be detected with single dose administration in patients with chronic neuropathic pain due to painful diabetic neuropathy.

Being tested
Comparator: A: Pregabalin, Comparator: B: Duloxetine, Comparator: C: Diphenhydramine hydrochloride
Medical subject headings
Diabetic Neuropathies

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Comparator: A: PregabalinDrug

    1 Pregabalin 300 mg capsule

  • Comparator: B: DuloxetineDrug

    1 Duloxetine hydrochloride 60 mg capsule

  • Comparator: C: Diphenhydramine hydrochlorideDrug

    1 Diphenhydramine hydrochloride 25mg capsule

Study groups in NCT00837941
Study groupRoleWhat they receive
1Experimentalsequence 1 - Pregabalin, Duloxetine hydrochloride, Diphenhydramine hydrochloride
Receives: Drug: Comparator: A: Pregabalin; Drug: Comparator: B: Duloxetine; Drug: Comparator: C: Diphenhydramine hydrochloride
2Experimentalsequence 2 - Duloxetine hydrochloride, Pregabalin, Diphenhydramine hydrochloride
Receives: Drug: Comparator: A: Pregabalin; Drug: Comparator: B: Duloxetine; Drug: Comparator: C: Diphenhydramine hydrochloride
3Experimentalsequence 3 - Diphenhydramine hydrochloride, Duloxetine hydrochloride, Pregabalin
Receives: Drug: Comparator: A: Pregabalin; Drug: Comparator: B: Duloxetine; Drug: Comparator: C: Diphenhydramine hydrochloride
4Experimentalsequence 4 - Pregabalin, Diphenhydramine hydrochloride, Duloxetine hydrochloride
Receives: Drug: Comparator: A: Pregabalin; Drug: Comparator: B: Duloxetine; Drug: Comparator: C: Diphenhydramine hydrochloride
5Experimentalsequence 5 - Duloxetine hydrochloride, Diphenhydramine hydrochloride, Pregabalin
Receives: Drug: Comparator: A: Pregabalin; Drug: Comparator: B: Duloxetine; Drug: Comparator: C: Diphenhydramine hydrochloride
6Experimentalsequence 6 - Diphenhydramine hydrochloride, Pregabalin, Duloxetine hydrochloride
Receives: Drug: Comparator: A: Pregabalin; Drug: Comparator: B: Duloxetine; Drug: Comparator: C: Diphenhydramine hydrochloride

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. analgesic efficacy measured by patients self reported pain level after single dose administration

    Measured: 5-11 hours after single dose is administered

Secondary outcomes (1)
  1. The onset of analgesic efficacy following single dose of pregabalin and duloxetine hydrochloride versus placebo

    Measured: 24 hours after single dose is administered

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted6 Feb 2009 (estimated)
  2. Study startApr 2009
  3. Primary completionAug 2009 (estimated)
  4. Study completionSep 2009 (estimated)

Resources

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 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00837941
Sponsor's protocol ID
0000-115
Other IDs
2009_515
Status last verified
Jul 2015
First submitted
5 Feb 2009
Last updated
27 Jul 2015
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Comparator: A: Pregabalin, Comparator: B: Duloxetine and Comparator: C: Diphenhydramine hydrochloride in people with Painful Diabetic Neuropathy, run by Merck Sharp & Dohme LLC.

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 6 inclusion and 7 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: withdrawn, as of the sponsor's last update on 27 Jul 2015. Status can change between updates, so confirm with the study contact before making plans.

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 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

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 was withdrawn before enrolling participants, so there are no results.

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.

What does the primary outcome measure?

analgesic efficacy measured by patients self reported pain level after single dose administration (time frame: 5-11 hours after single dose is administered). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 27 Jul 2015.

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