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CompletedNCT07907406Updated Oct 30, 2026

Comparison Between Efficacy of Gabapentin and Carbamazepine in Neuropathic Pain of Guillain-Barré Syndrome Patients

An interventional study of Gabapentin and Carbamazepine in Guillain-Barré Syndrome and Neuropathic Pain, sponsored by Lahore General Hospital. Completed at 1 site in Pakistan. Open to participants aged 16 Years to 65 Years. Per ClinicalTrials.gov, last updated 2026-10-30.

Sponsored by Lahore General Hospital · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 9 months after the study started (first participant enrolled Jan 2026, registered Oct 2026).
Updated Oct 30, 2026Newly registeredGo to Updates ↓
Phase
Not applicable
Study type
Interventional
Enrollment
60
Allocation
Randomized
Ages
16 Years to 65 Years
Sex
All
01

Study summary

This randomized controlled trial compared gabapentin with carbamazepine for the treatment of nerve-related pain in patients with Guillain-Barré syndrome who received plasma exchange. The study tested the hypothesis that pain scores after seven days of treatment differed between the two groups.

The study was conducted at Medical Unit III, Lahore General Hospital, Lahore, and included 60 patients of either sex aged 16-65 years. Patients were randomly assigned by a lottery method to two equal groups of 30 patients each. One group received gabapentin 300 mg three times daily, while the other received carbamazepine 100 mg three times daily. Both treatments were administered after plasma exchange, and patients were followed for seven days.

Pain severity was assessed using a numeric rating scale before treatment and after seven days. Mean pain scores after treatment were compared between the groups to assess their relative effectiveness. Age, sex, duration of Guillain-Barré syndrome, smoking, alcohol use, diabetes, and hypertension were recorded, and comparisons were also performed within subgroups defined by these characteristics.

02

Conditions studied

  • Guillain-Barré Syndrome
  • Neuropathic Pain

Keywords

  • Gabapentin
  • Carbamazepine
  • Guillain-Barré syndrome
  • Neuropathic pain
  • Plasma exchange
  • Pain management
03

In context

Guillain-Barre Syndrome

96 studies on the registry are indexed under Guillain-Barre Syndrome; 28 are open to participants now.

This study's enrollment of 60 is above the median of 50 across 43 interventional studies indexed under Guillain-Barre Syndrome.

Browse Guillain-Barre Syndrome studies →

Lead sponsor

Lahore General Hospital is the lead sponsor of 32 studies on the registry; 4 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
16 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Patients aged 16-65 years,
  • Both genders,
  • Diagnosed with GBS receiving plasma exchange.

Exclusion criteria

Exclusion Criteria:

  • Patients with considered to have a form of relapsing polyradiculoneuritis, poliomyelitis, pregnancy (on medical record).
  • Renal failure patients (creatinine>1.88 mg/dl or on dialysis) or on a controlled sodium or potassium diet, already taking gabapentin or enrolled in another trial
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Participant)
Enrollment
60 participants (actual)

Study arms

  • Experimental
    Group A-Gabapentin

    Patients received gabapentin 300 mg three times daily for seven days after plasma exchange for Guillain-Barré syndrome.

    Drug: Gabapentin

  • Active comparator
    Group B-Carbamazepine

    Patients received carbamazepine 100 mg three times daily after plasma exchange

    Drug: Carbamazepine

Interventions

  • Gabapentin 300 mg was administered three times daily for seven days to treat neuropathic pain.

  • Carbamazepine 100 mg was administered three times daily to treat neuropathic pain, with pain assessment after seven days.

06

What researchers measure

Primary outcomes

  1. Mean neuropathic pain score

    Neuropathic pain severity was assessed using a numeric rating scale at baseline and after seven days of treatment. Mean pain scores at day seven were compared between patients receiving gabapentin and those receiving carbamazepine. Lower scores indicated less severe pain.

    Time frame: Baseline and 7 day after initiation of treatment.

07

Study locations

1 site
  • Lahore General Hospital, Lahore
    Lahore, Punjab Province 54000, Pakistan
08

Updates

1 registry update since Sep 25, 2026
Registered
First appeared on the registry. No changes since
Oct 30, 2026
Show all 1 update
  1. Oct 30, 2026
    First appeared on the registry

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

09

Registry details

Key details

Study ID
NCT07907406
Lead sponsor
Lahore General Hospital
Responsible party
Muhammad Irfan Jamil (Principal Investigator, Lahore General Hospital) — Principal investigator
First posted
Oct 30, 2026
Start date
Jan 1, 2026
Primary completion
Jun 30, 2026
Completion
Jun 30, 2026
Last update
Oct 30, 2026

Study contacts

Namra Nazir
principal investigator · Lahore General Hospital, Lahore

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Oct 2026. You cannot join it, but the record below documents what was studied.

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Studies of the drug tested here: Gabapentin

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