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ConstipationNCT07751224

Auricular Acupuncture for Post-Stroke Constipation

A study testing Auricular Acupuncture in people with Constipation and Stroke, run by Ho Chi Minh City Orthopedics and Rehabilitation Hospital at 1 site in Vietnam.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The goal of this clinical trial is to learn if auricular acupuncture can improve constipation in hospitalized patients with post-stroke constipation. It will also evaluate whether auricular acupuncture is safe when used together with standard care. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Constipation, Stroke, Post-stroke Constipation
What is being tested?
Auricular Acupuncture
Type of treatment
Surgery or procedure
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
60 participants
Where
1 siteVietnam
Study dates
1 Nov 2024to 1 Jul 2025
Phase
Interventional
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 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Adults aged 18 years or older.
  • Hospitalized patients with stroke confirmed by computed tomography (CT) or magnetic resonance imaging (MRI)
  • Glasgow Coma Scale score >= 14
  • Diagnosed with constipation according to the Constipation Assessment Scale (CAS) with a score > 2 and constipation duration of less than 1 week
  • No history of gastrointestinal study
  • Receiving routine rehabilitation therapy, including body acupuncture, massage therapy, and physical rehabilitation according to the hospital protocol
  • Able to provide written informed consent

Who cannot join

  • Inability to cooperate with study procedures because of cognitive impairment, psychiatric disorders, or severe communication difficulties after stroke.
  • Skin lesions or infection involving the auricle.
  • Pregnancy.
  • Acute illness, exacerbation of chronic disease, malignant tumors, cancer, or severe dermatological disorders.
  • Current use of medications known to cause constipation, including antidepressants, opioid analgesics, iron supplements, calcium channel blockers, or antacids.

Trial locations and contacts

1 site in 1 country.

Vietnam1 site
  • Ho Chi Minh City Hospital of Orthpaedics and Rehabilitation

    Ho Chi Minh City

Other trials in Vietnam

About this study

Official title: Effectiveness of Auricular Acupuncture for Post-Stroke Constipation: A Randomized Sham-Controlled Trial

The goal of this clinical trial is to learn if auricular acupuncture can improve constipation in hospitalized patients with post-stroke constipation. It will also evaluate whether auricular acupuncture is safe when used together with standard care.

The main questions it aims to answer are:

Read more
  • Does auricular acupuncture reduce constipation severity in patients with post-stroke constipation?
  • Does auricular acupuncture intestinal symptoms compared with sham auricular acupuncture?
  • Is auricular acupuncture safe for patients with post-stroke constipation? Researchers will compare auricular acupuncture plus standard care with sham auricular acupuncture plus standard care to determine whether auricular acupuncture provides additional benefits in relieving constipation symptoms.

Participants will:

  • Be randomly assigned to receive either auricular acupuncture or sham auricular acupuncture
  • Receive one treatment session daily for 8 consecutive treatment days in addition to standard care.
  • Complete assessment of constipation severity and intestinal symptoms before and during the study.
  • Be monitored for any adverse events throughout the study.
Read the detailed description

Post-stroke constipation (PSC) is one of the most common gastrointestinal complications after stroke and is associated with prolonged hospitalization, impaired rehabilitation, reduced quality of life, and poorer functional outcomes. Conventional management, including laxatives, dietary modification, and bowel training, may improve constipation symptoms; however, many patients continue to experience persistent bowel dysfunction despite these treatments. Therefore, safe and effective adjunctive therapies are needed to optimize bowel management during stroke rehabilitation.

Auricular acupuncture is a non-pharmacological intervention that has been increasingly used to manage gastrointestinal disorders. Previous experimental and clinical studies suggest that stimulation of specific auricular acupoints may regulate autonomic nervous system activity, improve gastrointestinal motility, and modulate the gut-brain axis. Although several studies have reported beneficial effects of auricular acupuncture for constipation, evidence regarding its effectiveness in patients with post-stroke constipation remains limited, particularly from randomized sham-controlled clinical trials.

This study was conducted to evaluate the effectiveness and safety of auricular acupuncture as an adjunct to standard care in hospitalized patients with post-stroke constipation. Participants were randomly assigned to receive either auricular acupuncture plus standard care or sham auricular acupuncture plus standard care. Constipation severity, intestinal symptoms, bowel function, and adverse events were evaluated during the intervention period to compare the therapeutic effects between the two groups.

The findings of this study are expected to provide additional clinical evidence regarding the role of auricular acupuncture as an adjunctive treatment for post-stroke constipation and may contribute to the development of evidence-based rehabilitation strategies for patients recovering from stroke.

Being tested
Auricular Acupuncture, Sham Auricular Acupuncture
Keywords
Auricular Acupuncture, Post-Stroke Constipation, Stroke Rehabilitation, Constipation, Randomized Controlled Trial, Sham-Controlled Trial, Complementary Therapy, Traditional Medicine
Medical subject headings
Constipation, Stroke

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Auricular AcupunctureProcedure or surgery

    Auricular acupuncture was performed at six therapeutic auricular acupoints (AH6a, HX2, TF3, CO7, CO17, and CO14) on the left ear. Needles were manually stimulated for 30 seconds every 5 minutes during each 20-minute treatment session. Treatment was administered once daily, five sessions per week, for eight treatment days.

  • Sham Auricular AcupunctureProcedure or surgery

    Sham auricular acupuncture was performed at six non-therapeutic auricular points (SF1, SF2, SF3, AH1, AH2, and AH3) using the same needle manipulation, treatment duration, and treatment schedule as the experimental intervention.

Study groups in NCT07751224
Study groupRoleWhat they receive
Auricular Acupuncture + Standard CareExperimentalParticipants received auricular acupuncture in addition to standard care. Auricular acupuncture was administered once daily for 20 minutes, five sessions per week for eight treatment days. Standard care included lactulose therapy (Duphalac), dietary and lifestyle counseling, body acupuncture, massage therapy, and rehabilitation therapy according to the hospital protocol.
Receives: Procedure: Auricular Acupuncture
Sham Auricular Acupuncture + Standard CareSham comparatorParticipants received sham auricular acupuncture in addition to the same standard care as the experimental group. Sham auricular acupuncture was administered using non-therapeutic auricular points with the same treatment schedule as the experimental intervention. Standard care included lactulose therapy (Duphalac), dietary and lifestyle counseling, body acupuncture, massage therapy, and rehabilitation therapy according to the hospital protocol.
Receives: Procedure: Sham Auricular Acupuncture

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Constipation Assessment Scale (CAS) score

    The Constipation Assessment Scale (CAS) is an 8-item validated instrument used to assess the severity of constipation. Total scores range from 0 to 16, with higher scores indicating more severe constipation.

    Measured: Baseline and Days 1, 3, 5, and 8 after treatment initiation

Secondary outcomes (2)
  1. Intestinal Symptom Score

    Intestinal symptoms were assessed using the Ten-Item Intestinal Symptoms Rating Scale. Higher score indicate more severe intestinal symptom

    Measured: Baseline and Days 1, 3, 5, and 8 after treatment initiation

  2. Adverse events

    Incidence of adverse events related to study interventions

    Measured: Throughout the 8-day intervention periof

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted7 Aug 2026
  2. Study start1 Nov 2024
  3. Primary completion1 Jun 2025
  4. Study completion1 Jul 2025

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
Interventional Study Model
Masking
Single blind
Who is masked
Participant
Enrolment
60 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07751224
Sponsor's protocol ID
BV1A-YHCT02
Status last verified
Aug 2026
First submitted
3 Aug 2026
Last updated
7 Aug 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: De-identified individual participant data underlying the results reported in the publication will be shared. This includes baseline demographic and clinical characteristics, Constipation Assessment Scale (CAS) scores, intestinal symptom scores, adverse event data, and the study protocol and statistical analysis plan. All shared data will be fully de-identified to protect participant confidentiality.

Publications

  • Julious SA. Sample size of 12 per group rule of thumb for a pilot study. Pharm Stat. 2005;4(4):287-291.

  • Cheng J, Li L, Xu F, Xu Y, Lin L, Chen JDZ. Poststroke Constipation Is Associated With Impaired Rectal Sensation. Am J Gastroenterol. 2020 Jan;115(1):105-114. doi: 10.14309/ajg.0000000000000479.

    PubMed 31809301
  • Suenghataiphorn T, Yanpiset P, Xanthavanij N, Srikulmontri T, Thiravetyan B, Tribuddharat N, Prasitsumrit V, Danpanichkul P, Sodsri T, Kulthamrongsri N, Wattanachayakul P. Increased Risk of Stroke in Constipation Patients: Systematic Review and Meta-analysis. J Clin Gastroenterol. 2026 Jan 1;60(1):54-60. doi: 10.1097/MCG.0000000000002127.

    PubMed 39761158
  • Lv Z, Fan S, Ma X, Liu F, Wu H, Shi Z, Wang M, Yu T, Wang P, Liu S, Ji Y. New-onset constipation at acute stage after stroke: incidence, risk factors, and impact on stroke rehabilitation. Front Neurol. 2026 Apr 15;17:1721157. doi: 10.3389/fneur.2026.1721157. eCollection 2026.

    PubMed 42064981
  • Feng S, Wu X, Dai X, Liu Z, Luo Y, Wang F. Comparative effectiveness of multiple different non-pharmacologic interventions for post-stroke constipation: a Bayesian network meta-analysis. Front Neurol. 2025 Oct 10;16:1591620. doi: 10.3389/fneur.2025.1591620. eCollection 2025.

    PubMed 41142145
  • Wang Y, Li SY, Wang D, Wu MZ, He JK, Zhang JL, Zhao B, Hou LW, Wang JY, Wang L, Wang YF, Zhang Y, Zhang ZX, Rong PJ. Transcutaneous Auricular Vagus Nerve Stimulation: From Concept to Application. Neurosci Bull. 2021 Jun;37(6):853-862. doi: 10.1007/s12264-020-00619-y. Epub 2020 Dec 23.

    PubMed 33355897
  • van Etten ES, Kaushik K, Jolink WMT, Koemans EA, Ekker MS, Rasing I, Voigt S, Schreuder FHBM, Cannegieter SC, Rinkel GJE, Lijfering WM, Klijn CJM, Wermer MJH. Trigger Factors for Spontaneous Intracerebral Hemorrhage: A Case-Crossover Study. Stroke. 2022 May;53(5):1692-1699. doi: 10.1161/STROKEAHA.121.036233. Epub 2021 Dec 16.

    PubMed 34911344
  • Truyen TTTT, Vo NLY, Vo QP, Phan TC, Le PNB, Nguyen HT, Heckard E, Liu H, Nguyen TQ, Nguyen TH, Nguyen TN, Zuin M, Nguyen T. Burden and risk factors of stroke in Vietnam from 1990 to 2021 - a systematic analysis from global burden disease 2021. J Stroke Cerebrovasc Dis. 2025 Mar;34(3):108241. doi: 10.1016/j.jstrokecerebrovasdis.2025.108241. Epub 2025 Jan 16.

    PubMed 39826583

Questions about this trial

What is this clinical trial studying?

A study testing Auricular Acupuncture in people with Constipation and Stroke, run by Ho Chi Minh City Orthopedics and Rehabilitation Hospital at 1 site in Vietnam.

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 7 inclusion and 5 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 7 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 Vietnam. 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. Some participants in this study may receive a placebo. 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?

Constipation Assessment Scale (CAS) score (time frame: Baseline and Days 1, 3, 5, and 8 after treatment initiation). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT07751224, which also lists 8 linked publications.

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 7 Aug 2026; AzTrials last refreshed its copy on 28 Oct 2026.

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