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CompletedNCT01528540Updated Sep 9, 2015

Evaluation of Efficacy of Combination of Pregabalin and Antioxidant in Reducing Pain in Chronic Pancreatitis: a Randomized Control Trial

An interventional study of Placebo and Antioxidant plus Pregabalin in Chronic Pancreatitis, sponsored by Asian Institute of Gastroenterology, India. Completed at 1 site in India. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2015-09-09.

Sponsored by Asian Institute of Gastroenterology, India · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
87
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
All
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Study summary

Study hypothesis: Combination of antioxidants and pregabalin results in better pain relief than placebo in patients with chronic pancreatitis.

Chronic pancreatitis (CP) is a clinical enigma, with pain being the most distressing symptom that brings the patient to clinical attention. Pain in chronic pancreatitis is multifactorial, and may be related to pancreatic ductal hypertension, tissue hypertension, inflammatory cytokines, oxidative stress and neuropathic mechanisms like mechanical allodynia, inflammatory hyperalgesia and temporal summation. The mainstay of treatment for pain in CP due to pancreatic ductal stone is endotherapy (ESWL and ERCP). Recent randomized controlled trials have shown that antioxidant cocktail and pregabalin (a presynaptic voltage gated calcium channel blocking agent) can result in significant reduction of pain in CP.

In this study, the investigators will study the efficacy of the combination of antioxidants and pregabalin in reducing pain and compare that with placebo. The investigators will randomize patients with documented chronic pancreatitis with recurrent/persistent pain after undergoing endotherapy and ductal clearance into three groups: Group A- antioxidants + pregabalin; Group B- Placebo. The primary outcome will be change in pain score and the secondary outcomes will be change in the number of painful days, analgesic requirements, quality of life and depression scale. Pain score will be quantified by the Izbicki pain score and visual analog scale; while quality of life and depression will be measured by the EORTC QLQ-C30/PAN26 and Beck depression inventory respectively. Comparison between Group A vs B will be made by the Chi square test/Fischer Exact and the Student's 't' tests respectively and analysis will be done on a intention to treat and per protocol basis. With an expected improvement of pain by 40% (at 80% power and alpha of 0.05) and adjusting for a presumed 10% drop out rate, the required sample size in each group will be at least 40.

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Conditions studied

  • Chronic Pancreatitis

Keywords

  • chronic pancreatitis
  • pregabalin
  • antioxidant
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In context

Pancreatitis

751 studies on the registry are indexed under Pancreatitis; 180 are open to participants now.

This study's enrollment of 87 is close to the median of 80 across 448 interventional studies indexed under Pancreatitis.

Browse Pancreatitis studies →

Lead sponsor

Asian Institute of Gastroenterology, India is the lead sponsor of 132 studies on the registry; 59 are open to participants now.

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

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Who can participate

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

Inclusion criteria

  1. Epigastric pain +/- radiation at least thrice in one month over the past three month.
  2. Endotherapy/Surgery and ducal clearance

Exclusion criteria

Exclusion Criteria:

  1. Age \<18 and >65yrs
  2. MPD and biliary obstruction
  3. Pancreatic neoplastic lesions
  4. Acute flare
  5. Pancreatic pseudocysts
  6. Pregnancy
  7. Cardiac and renal diseases
  8. Use of other anti epileptics
  9. Hypersensitivity to gabapentin/pregabalin
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Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Care provider, Investigator)
Enrollment
87 participants (actual)

Study arms

  • Placebo comparator
    Placebo

    This group will contain a placebo for antioxidant cocktail and pregabalin

    Drug: Placebo

  • Experimental
    Antioxidant plus pregabalin

    This group will contain antioxidant cocktail and pregabalin

    Drug: Antioxidant plus Pregabalin

Interventions

  • DrugPlacebo

    This group will include placebo.

  • DrugAntioxidant plus Pregabalin

    This group will contain combination of antioxidant cocktail and pregabalin

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What researchers measure

Primary outcomes

  1. Change in the pain score

    Pain score will be assessed by the Izbicki pain score, Visual analog scale and painDETECT tool for neuropathic pain.

    Time frame: Baseline and 8weeks

Secondary outcomes

  1. Change in number of painful days

    The number of days of pain per week will be measured.

    Time frame: Baseline and 8weeks

  2. Change in analgesic requirement

    The type (opiate/non-opiate), number and route of additional analgesic medicines that were required within the study period will be evaluated.

    Time frame: Baseline and 8weeks

  3. Change in quality of life

    QOL will be evaluated with the EORTC QLQ-C30/PAN26 questionnaire

    Time frame: Baseline and 8weeks

  4. Change in depression scale

    Depression will be assessed with the Beck's Depression Inventory.

    Time frame: Baseline and 8weeks

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Study locations

1 site
  • Asian Institute of Gastroenterology
    Hyderabad, Andhra Pradesh 500082, India
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References and documents

Publications

  • Bhardwaj P, Garg PK, Maulik SK, Saraya A, Tandon RK, Acharya SK. A randomized controlled trial of antioxidant supplementation for pain relief in patients with chronic pancreatitis. Gastroenterology. 2009 Jan;136(1):149-159.e2. doi: 10.1053/j.gastro.2008.09.028. Epub 2008 Sep 25. PubMed 18952082 ↗
  • Olesen SS, Bouwense SA, Wilder-Smith OH, van Goor H, Drewes AM. Pregabalin reduces pain in patients with chronic pancreatitis in a randomized, controlled trial. Gastroenterology. 2011 Aug;141(2):536-43. doi: 10.1053/j.gastro.2011.04.003. Epub 2011 Apr 14. PubMed 21683078 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 9, 2015, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT01528540
Lead sponsor
Asian Institute of Gastroenterology, India
Responsible party
Sponsor
First posted
Feb 8, 2012
Start date
Apr 2012
Primary completion
Dec 2014
Completion
Dec 2014
Last update
Sep 9, 2015

Study contacts

Rupjyoti Talukdar, MD
principal investigator · Asian Institue of Gastroenterology

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Sep 2015. You cannot join it, but the record below documents what was studied.

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