PainNCT02373696
Chronic Pain Dynamic Psychophysical Tests and Genetic Screening
An observational study of Pain, run by KK Women's and Children's Hospital at 1 site in Singapore.
Trial summary
Incidence and risk factors for persistent post surgical pain after Caesarean section are investigated. Demographic, psychophysical testing and genetic screening factors are performed in the perioperative period. Read more about this study
- Who is it for?
- Ages 21 to 50 years, women only
- Conditions the study is for
- Pain
- How many people
- 178 participants
- Where
- 1 siteSingapore
- Study dates
- Apr 2010to Jan 2015
- Phase
- Observational
- 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 21 to 50 years
- Women only
- No healthy volunteers
- Adult
Study population: Women undergoing spinal anaesthesia for Caesarean section
Who may be able to join
- Women undergoing spinal anaesthesia for Caesarean section
Who cannot join
- Failed spinal anaesthesia, Unable to perform psychophysical testing.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Prediction of Chronic Pain in the Asian Population- Comprehensive Programme Encompassing Dynamic Psychophysical Tests and Genetic Screening to Determine and Prevent Persistent Post-caesarean Pain
Incidence and risk factors for persistent post surgical pain after Caesarean section are investigated. Demographic, psychophysical testing and genetic screening factors are performed in the perioperative period. Phone survey is performed to investigate the incidence of persistent post surgical pain after Caesarean section.
Read the detailed description
Persistent post surgical pain after Caesarean section may lead to functional limitation and pain during activities of daily living. Demographic factors, psychophysical factors (mechanical temporal summation, diffuse noxious inhibitory control, state trait anxiety inventory) and genetic screening are used to predict the association with persistent post surgical pain. Phone survey follow up is performed to investigate the incidence of persistent post surgical pain and functional limitations due to pain experienced.
- Conditions
- Pain
- Keywords
- Pain, Caesarean section
- Medical subject headings
- Pain
What is being measured
The primary outcome is the main question the study is designed to answer.
Persistent Postsurgical Pain
Pain experienced in the lower abdominal region and surgical area after Caesarean section
Measured: 12 weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted27 Feb 2015 (estimated)
- Study startApr 2010
- Primary completionJan 2015
- Study completionJan 2015
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for PainStudies of the same condition, open and under way.
- More trials run by KK Women's and Children's HospitalThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Prospective
- Enrolment
- 178 participants (actual)
Sponsor and investigators
- Lead sponsor
- KK Women's and Children's Hospital
- Sponsor type
- Other government
- Responsible party
- Principal investigator, Sng Ban Leong, KK Women's and Children's Hospital
- Investigators
- Ban L Sng, FANZCA, Principal investigator, KK Women's and Children's Hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02373696
- Sponsor's protocol ID
- 2010/160/D
- Status last verified
- Aug 2026
- First submitted
- 22 Feb 2015
- Last updated
- 6 Aug 2026
- Results posted
- No
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 6 Aug 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Prediction of Chronic Pain in the Asian Population- Comprehensive Programme Encompassing Dynamic Psychophysical Tests and Genetic Screening to Determine and Prevent Persistent Post-caesarean Pain
- ClinicalTrials.gov ID
- NCT02373696
- Acronym / sponsor ID
- 2010/160/D
- Conditions
- Pain
- Keywords
- Pain, Caesarean section
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 178 participants (actual)
- Lead sponsor
- KK Women's and Children's HospitalOther government
- Study start
- Apr 2010
- Primary completion
- Jan 2015 (actual)
- Study completion
- Jan 2015 (actual)
- First posted
- 27 Feb 2015 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Incidence and risk factors for persistent post surgical pain after Caesarean section are investigated. Demographic, psychophysical testing and genetic screening factors are performed in the perioperative period. Phone survey is performed to investigate the incidence of persistent post surgical pain after Caesarean section.
Detailed description
Persistent post surgical pain after Caesarean section may lead to functional limitation and pain during activities of daily living. Demographic factors, psychophysical factors (mechanical temporal summation, diffuse noxious inhibitory control, state trait anxiety inventory) and genetic screening are used to predict the association with persistent post surgical pain. Phone survey follow up is performed to investigate the incidence of persistent post surgical pain and functional limitations due to pain experienced.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
Who may qualify
- Ages
- 21 to 50 years
- Sex
- Female only
- Healthy volunteers
- Not accepted
- Age groups
- Adult
- Study population
- Women undergoing spinal anaesthesia for Caesarean section
Key inclusion criteria (1 listed)
- Women undergoing spinal anaesthesia for Caesarean section
Key exclusion criteria (1 listed)
- Failed spinal anaesthesia, Unable to perform psychophysical testing.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Persistent Postsurgical Pain
Time frame: 12 weeks
Pain experienced in the lower abdominal region and surgical area after Caesarean section
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 6 Aug 2026.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Ban L Sng, FANZCA principal investigator
KK Women's and Children's Hospital
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Pain, run by KK Women's and Children's Hospital at 1 site in Singapore.
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 1 inclusion and 1 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 6 Aug 2026. 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 Singapore. 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.
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?
Persistent Postsurgical Pain (time frame: 12 weeks). 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 6 Aug 2026.