LI4 and SP6 Acupuncture for Pain After Cesarean Delivery
Effectiveness of LI4 and SP6 Acupuncture for Acute Postoperative Pain After Cesarean Delivery: A Sham-Controlled Randomized Clinical Trial
1 other identifier
interventional
140
1 country
1
Brief Summary
This randomized, sham-controlled clinical trial will evaluate the effectiveness of acupuncture at bilateral LI4 and SP6 as an adjunct to standard postoperative analgesia for acute pain after cesarean delivery. Women undergoing cesarean delivery under spinal anesthesia will be randomly assigned to receive either real acupuncture at bilateral LI4 and SP6 or sham acupuncture using non-penetrating Park sham needles. The acupuncture or sham intervention will be administered at the third postoperative hour. All participants will receive a standardized postoperative analgesic regimen, with additional rescue analgesia available when clinically required. The primary outcome will be pain intensity during first postoperative ambulation at the sixth postoperative hour, measured using a 0-10 visual analog scale (VAS). Secondary outcomes will include pain at rest and during movement at predefined postoperative time points, functional performance during first mobilization, rescue analgesic requirements, and acupuncture-related adverse events. Participant blinding will also be assessed after completion of the 24-hour outcome assessments.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started Nov 2026
Shorter than P25 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
October 4, 2026
CompletedFirst Posted
Study publicly available on registry
October 9, 2026
CompletedStudy Start
First participant enrolled
November 1, 2026
ExpectedPrimary Completion
Last participant's last visit for primary outcome
July 1, 2027
Study Completion
Last participant's last visit for all outcomes
July 1, 2027
October 9, 2026
October 1, 2026
8 months
October 4, 2026
October 4, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Pain Intensity During First Postoperative Ambulation
Pain intensity during the first postoperative ambulation will be assessed using a 0-10 visual analog scale (VAS), where 0 indicates no pain and 10 indicates the worst imaginable pain. First ambulation will be performed at the sixth postoperative hour and will include progression from sitting at the bedside to standing and walking. Participants will rate the pain experienced during the first ambulation, with higher scores indicating greater pain intensity.
At the 6th postoperative hour
Secondary Outcomes (12)
Cumulative Resting Pain Burden (VAS AUC)
From the 3rd to the 24th postoperative hour
Cumulative Movement-Evoked Pain Burden (VAS AUC)
From the 3rd to the 24th postoperative hour
Postoperative Pain Intensity at Rest
At the 3rd, 4th, 6th, 12th, and 24th postoperative hours
Postoperative Movement-Evoked Pain Intensity
At the 3rd, 4th, 12th, and 24th postoperative hours
Number of Steps During First Postoperative Ambulation
At the 6th postoperative hour
- +7 more secondary outcomes
Study Arms (2)
LI4 + SP6 Acupuncture
EXPERIMENTALParticipants will receive a single session of bilateral acupuncture at LI4 (Hegu) and SP6 (Sanyinjiao) at the third postoperative hour after cesarean delivery. Sterile acupuncture needles will be inserted at the four acupuncture sites and manually stimulated to elicit de qi. The needles will remain in place for 15 minutes. Participants will receive the standardized postoperative analgesic regimen used in the study, with rescue analgesia available when clinically required.
Sham Acupuncture
SHAM COMPARATORParticipants will receive a single sham acupuncture session at the third postoperative hour after cesarean delivery. Non-penetrating Park sham needles will be applied bilaterally at the same LI4 (Hegu) and SP6 (Sanyinjiao) locations used in the real acupuncture group, without skin penetration. The number of application sites, treatment duration (15 minutes), participant positioning, and practitioner interaction will be standardized to match the real acupuncture group. Participants will receive the same standardized postoperative analgesic regimen and rescue analgesia protocol as the acupuncture group.
Interventions
A single acupuncture session will be administered at the third postoperative hour after cesarean delivery. Sterile acupuncture needles (0.25 × 25 mm) will be inserted bilaterally at LI4 (Hegu) and SP6 (Sanyinjiao), for a total of four acupuncture sites. Needles will be inserted to an approximate depth of 1.5-2 cm and manually stimulated to elicit de qi. The needles will remain in place for 15 minutes.
A single sham acupuncture session will be administered at the third postoperative hour after cesarean delivery. Non-penetrating Park sham needles will be applied bilaterally at the same LI4 (Hegu) and SP6 (Sanyinjiao) locations used in the real acupuncture group, for a total of four application sites. The sham needles will not penetrate the skin. Treatment duration, participant positioning, and practitioner interaction will be standardized to match the real acupuncture procedure. The sham needles will remain in place for 15 minutes.
Eligibility Criteria
You may qualify if:
- Women aged 18-50 years
- Undergoing elective cesarean delivery under spinal anesthesia
- Able to understand and use the 0-10 visual analog scale (VAS)
- Able to provide written informed consent
You may not qualify if:
- Emergency cesarean delivery
- Conversion from spinal to general anesthesia or requirement for general anesthesia
- Known allergy or contraindication to medications included in the standardized postoperative analgesic protocol
- Presence of infection, skin lesion, or other condition preventing acupuncture or sham application at the LI4 or SP6 sites
- Known bleeding disorder or clinically significant coagulation abnormality
- Neurological, musculoskeletal, or other medical condition that would prevent or substantially limit postoperative mobilization
- Chronic pain requiring regular analgesic medication
- Regular opioid use before surgery
- Inability to reliably assess or report pain intensity
- Any postoperative clinical condition requiring deviation from the planned analgesic or mobilization protocol
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Niğde Ömer Halisdemir University Hospital
Niğde, Niğde Province, 51240, Turkey (Türkiye)
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, OUTCOMES ASSESSOR
- Masking Details
- Participants and outcome assessors will be blinded to treatment allocation. Real and sham procedures will be performed using a standardized protocol, with non-penetrating Park sham needles used in the sham group. The practitioner administering the acupuncture or sham procedure cannot be blinded because of the nature of the intervention and will not participate in postoperative pain or functional outcome assessments. Participant blinding will be evaluated after completion of the 24-hour outcome assessments by asking participants whether they believe they received real acupuncture, sham acupuncture, or are unsure. The statistical analysis will be performed using coded treatment groups.
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Assoc Prof
Study Record Dates
First Submitted
October 4, 2026
First Posted
October 9, 2026
Study Start (Estimated)
November 1, 2026
Primary Completion (Estimated)
July 1, 2027
Study Completion (Estimated)
July 1, 2027
Last Updated
October 9, 2026
Record last verified: 2026-10
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, SAP
- Time Frame
- De-identified IPD and supporting information will be available beginning 6 months after publication of the primary study results and will remain available for 5 years.
- Access Criteria
- De-identified IPD and supporting information may be made available to qualified researchers who submit a methodologically sound proposal. Requests should be directed to the corresponding author and will be reviewed by the study investigators. Data will be provided for approved research purposes, subject to applicable ethical, institutional, and data-protection requirements. A data use agreement may be required before access is granted.
De-identified individual participant data underlying the results reported in the published article may be shared with qualified researchers upon reasonable request to the corresponding author, subject to review and approval of the proposed use and applicable ethical and institutional requirements.