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Efficacy of Diclofenac on Pain During Endometrial Sampling

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified September 2012 by Mahidol University.
Recruitment status was:  Recruiting
Information provided by (Responsible Party):
Mahidol University Identifier:
First received: December 11, 2012
Last updated: January 4, 2013
Last verified: September 2012

Abnormal uterine bleeding is common in Thai women. Traditionally, because of a larger number of patients, the diagnosis of its cause is performed via fractional curettage under local anesthesia such as paracervical nerve block or intravenous meperidine.

Pain is one of a common adverse effect of this procedure and this topic should be concerned by a responsible doctor.

NSAIDs, Diclofenac Potassium in this study, is known as a drug which is effective for pain control and is as effective as coxib in acute pain management. Because of its cost, easy accessible and easy administration, Diclofenac Potassium was selected to be used in this study. Its onset of action is about 1 hour and only one dose of this drug do not cause any serious side effects.

The hypothesis of this study is that "Diclofenac Potassium has an additional effectiveness for acute pain control in patients undergoing fractional curettage under paracervical nerve block due to abnormal uterine bleeding" Double blind randomised controlled trial was performed in this study with 45 patients included in each group.

Condition Intervention
Abnormal Uterine Bleeding Unrelated to Menstrual Cycle Drug: Diclofenac Potassium Drug: Folic Acid

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Triple (Participant, Care Provider, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: Efficacy for Acute Pain Alleviation of 50 mg Diclofenac 1 Hour Prior to Endometrial Sampling in Cases of Abnormal Uterine Bleeding

Resource links provided by NLM:

Further study details as provided by Mahidol University:

Primary Outcome Measures:
  • Effectiveness of Diclofenac Potassium for additional acute pain control in patient undergoing fractional curettage under paracervical block due to abnormal uterine bleeding [ Time Frame: 1 Year ]
    Effectiveness of oral 50 mg Diclofenac Potassium was measured by pain score using visual dialogue scale during operation and 30, 60, 90 and 120 minutes after procedure.

Estimated Enrollment: 90
Study Start Date: November 2012
Estimated Study Completion Date: June 2013
Estimated Primary Completion Date: June 2013 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Diclofenac Potassium
Diclofenac Potassium 50 mg PO 1 hour prior to fractional curettage
Drug: Diclofenac Potassium
Other Name: Cataflam
Placebo Comparator: Folic Acid
Folic acid 5 mg PO 1 hour prior to fractional curettage
Drug: Folic Acid


Ages Eligible for Study:   35 Years and older   (Adult, Senior)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Thai women at the age over 35 years old
  • Presenting with abnormal uterine bleeding and have a plan of performing fractional curettage

Exclusion Criteria:

  • uterine anomalies
  • pregnancy
  • Pelvic inflammatory disease
  • Uncontrolled medical conditions
  • Known cases of gynecological diseases such as gynecological malignancy, abnormal pap smear
  • NSAIDs allergy
  • contraindicate to NSAIDs use
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01762306

Contact: Korakot Sirimai, Dr. (66)81-6140655

Faculty of Medicine Siriraj Hospital Mahidol University Recruiting
Bangkok, Thailand, 10700
Contact: Korakot Sirimai, Dr.    (66)81-6140655   
Principal Investigator: Korakot Sirimai, Dr.         
Sub-Investigator: Tripop Lertbunnaphong, Dr.         
Sponsors and Collaborators
Mahidol University
  More Information

Hinchy S, Ordman, Burrell A, Vella L, Ward L. Guidelines for the Management of Acute Pain in Adults. NHS trust; 2008.

Responsible Party: Mahidol University Identifier: NCT01762306     History of Changes
Other Study ID Numbers: SIOGMVA001
Study First Received: December 11, 2012
Last Updated: January 4, 2013

Additional relevant MeSH terms:
Uterine Hemorrhage
Pathologic Processes
Uterine Diseases
Genital Diseases, Female
Folic Acid
Vitamin B Complex
Growth Substances
Physiological Effects of Drugs
Anti-Inflammatory Agents, Non-Steroidal
Analgesics, Non-Narcotic
Sensory System Agents
Peripheral Nervous System Agents
Anti-Inflammatory Agents
Antirheumatic Agents
Cyclooxygenase Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action processed this record on September 20, 2017