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Uremic PruritusPhase 4NCT03758079

Comparison of Gabapentin With Doxepin in the Management of Uremic Pruritus

A Phase 4 study testing Doxepin and Gabapentin in people with Uremic Pruritus, run by University of Balamand at 1 site in Lebanon.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This is a single blind randomized trial to compare efficacy and side effects of Gabapentin with Doxepin. Hemodialysis patients with uremic pruritus at one dialysis center of Saint George Hospital University Medical Centre were included in this study. Read more about this study

Who is it for?
Ages 18 to 80 years
Conditions the study is for
Uremic Pruritus
What is being tested?
Doxepin and Gabapentin
Could I receive a placebo?
No, everyone receives an active treatment
How many people
14 participants
Where
1 siteLebanon
Study dates
1 Jun 2018to 8 Oct 2018
Phase
Phase 4
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 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • prevalent patients undergoing HD with UP for at least three months
  • any medications with antipruritic effects to be discontinued one week before the study
  • Hemodialysis performed for 3-4 h thrice weekly via a low flux polysulphonedialyser [1.3-1.6 m2 surface areas] using bicarbonate and/or acetate dialysis fluid
  • well controlled Calcium, Phosphorus and iPTH levels

Who cannot join

  • patients labeled high risk of fall (Having a score more than 16/20 using part 1 from Falls Risk Assessment Tool (FRAT)
  • patients taking drugs that interact with doxepin or gabapentin
  • patients with hepatic failure
  • patients with hyperthyroidism
  • patients with narrow angle glaucoma
  • patients with heart block or decompensated heart failure or hypotension (defined as systolic blood pressure less than 90 mmHg) or myocardial infarction in the past three months
Show all 10Show fewer
  • history of allergy to gabapentin or doxepin
  • uncontrolled psychiatric diseases
  • pregnant patients
  • patients with psoriasis, atopic dermatitis or any other condition that can justify the pruritus

Trial locations and contacts

1 site in 1 country.

Lebanon1 site
  • Saint George Hospital University Medical Center

    Beirut

Other trials in Lebanon

About this study

Official title: Comparison of Gabapentin With Doxepin in the Management of Uremic Pruritus: Pilot Study

This is a single blind randomized trial to compare efficacy and side effects of Gabapentin with Doxepin. Hemodialysis patients with uremic pruritus at one dialysis center of Saint George Hospital University Medical Centre were included in this study. Patients were divided into 2 groups to receive either 10 mg Doxepin daily or Gabapentin at a dose of 100mg after each hemodialysis session (increased as tolerated) for 4 weeks, after which patients were treated reversley. Pruritus severity and its effect on quality of life will be assessed by using visual analog scale (VAS), 5-D pruritus scale and dermatology life quality index (DLQI). Include patients will have to fill these forms at baseline and at end of week1, week2 and week4

Read the detailed description

Pruritus is one of the frustrating skin manifestations of advanced renal failure. Many options have been used for the management of uremic pruritus (UP) such as Pregabalin, Gabapentin, Doxepine and Desloratidine. Gabapentin, a GABAergic drug, has been found to be effective in the treatment of uremic pruritus. Doxepin, a potent antihistamine drug, is used orally or topically in many pruritic conditions such as UP, idiopathic pruritus, atopic dermatitis, neurogenic, or psychogenic pruritus and, in the management of the UP in hemodialysis patients.

No comparative head to head study between Gabapentin and Doxepine has been conducted to date. The aim of this study was to compare Gabapentin and Doxepin in treatment of uremic pruritus in hemodialysis patients.

Conditions
Uremic Pruritus
Being tested
Doxepin, Gabapentin

What participants receive

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

  • DoxepinDrug

    Also called Silenor, Sinequan, Adapin

    10 mg Doxepin for 4 weeks

  • GabapentinDrug

    Also called Neurontin, Gralise, Gabarone, Fanatrex

    dose of 100mg after each hemodialysis session (increased as tolerated) for 4 weeks

Study groups in NCT03758079
Study groupRoleWhat they receive
DoxepinActive comparator10 mg Doxepin daily for 4 weeks
Receives: Drug: Doxepin
GabapentinActive comparatorGabapentin 100mg after each dialysis session
Receives: Drug: Gabapentin

What is being measured

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

  1. Change from baseline in Worst-itching Visual Analog Scale (VAS) at week 4

    a 10cm horizontal line marked from zero (no pruritus) to 10 (worst possible pruritus). The pruritus will be assessed subjectively and scored as follows: no pruritus (VAS score 0), mild (VAS score 1-3) with episodic and localized pruritus without disturbance in usual work and sleep, moderate (VAS score 4-7) with generalized and continuous pruritus without sleep disturbance and severe (VAS score 8-10) with generalized, continuous pruritus and sleep disturbance.

    Measured: 1, 2, 4 weeks

  2. Change from baseline in 5-D Itch Scale score at week 4

    multidimensional questionnaire. The five dimensions are degree, duration, direction, disability and distribution. The scores of each of the five domains will be achieved separately and then summed together to obtain a total 5-D score ranging between five (no pruritus) and 25 (most severe pruritus). For the distribution domain, the number of affected body parts is tallied (potential sum 0-16) and the sum is sorted into five scoring bins: sum of 0-21⁄4score of 1, sum of 3-51⁄4score of 2, sum of 6-101⁄4score of 3, sum of 11-131⁄4score of 4 and sum of 14-161⁄4score of 5

    Measured: 1, 2, 4 weeks

  3. Change from baseline in Dermatology life quality index (DLQI) at week 4

    10-Item questionnaire evaluating: impact of skin condition on HRQoL during the past week, symptoms and feeling, daily activities, leisure, work and school, personal relationships, treatment. A Score range from 0 to 30.

    Measured: 1, 2, 4 weeks

Secondary outcomes (1)
  1. side effects of each treatment

    Number of patients who report side effects while on each treatment

    Measured: 4 weeks

Timeline

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

  1. First posted29 Nov 2018
  2. Study start1 Jun 2018
  3. Primary completion8 Oct 2018
  4. Study completion8 Oct 2018

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 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
14 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03758079
Sponsor's protocol ID
064-17/717
Status last verified
Nov 2018
First submitted
19 Nov 2018
Last updated
29 Nov 2018
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
Undecided

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Doxepin and Gabapentin in people with Uremic Pruritus, run by University of Balamand at 1 site in Lebanon.

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 4 inclusion and 10 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 29 Nov 2018. 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 Lebanon. 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 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

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.

What does the primary outcome measure?

Change from baseline in Worst-itching Visual Analog Scale (VAS) at week 4 (time frame: 1, 2, 4 weeks). The study lists 3 primary outcomes in all. 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 29 Nov 2018.

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