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Laser Acupuncture on Dry Eye and Sjögren's Syndrome-related Dry Eye Symptoms (LADESJS)

Exploring the Long-term Therapeutic Effects of Laser Acupuncture on Dry Eye and Sjögren's Syndrome-related Dry Eye Symptoms

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06780293
Acronym
LADESJS
Enrollment
140
Registered
2025-01-17
Start date
2025-02-03
Completion date
2026-12-31
Last updated
2025-04-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Dry Eye Syndrome (DES), Laser Acupuncture, Sjögren's Syndrome (SS)

Keywords

Dry eye syndrome, Sjögren's syndrome, Laser Acupuncture, Fengchi (GB20), Zanzhu (BL2), Hegu (LI4), Quchi (LI11)

Brief summary

This randomized, double-blind, placebo-controlled clinical trial aims to evaluate the efficacy of adding laser acupuncture at Fengchi (GB20), Zanzhu (BL2), Hegu (LI4), and Quchi (LI11) acupoints to standard care for the treatment of dry eye symptoms in both Sjögren's Syndrome-related dry eye (SJS-DES) and non-Sjögren's Syndrome-related dry eye (Non-SJS-DES) populations. A total of 140 dry eye patients will be recruited and divided into two groups: 70 participants with SJS-DES and 70 with Non-SJS-DES. Participants will be randomly assigned into three groups: Sham+LA group (60 participants receiving 4 weeks of placebo laser acupuncture followed by 4 weeks of active laser acupuncture), LA+LA group (60 participants receiving 4 weeks of active laser acupuncture followed by another 4 weeks of active laser acupuncture), and a Waiting List group (20 participants receiving no laser acupuncture treatment). Each session will target the Fengchi (GB20), Zanzhu (BL2), Hegu (LI4), and Quchi (LI11) acupoints bilaterally, performed twice a week. The total study period is 8 weeks, and the treatment efficacy will be assessed at the end of the 8-week treatment. The Waiting List group (20 participants) will not receive any laser acupuncture treatment during this period. Efficacy will be evaluated using the Numerical Rating Scale (NRS), Schirmer's test, Ocular Surface Disease Index (OSDI), EULAR Sjögren's Syndrome Patient Reported Index (ESSPRI), Traditional Chinese Medicine (TCM) tongue diagnosis, TCM pulse diagnosis, TCM constitution questionnaire, TCM heart rate variability analysis, nailfold microcirculation assessment, and iris examination. This study aims to investigate the impact of laser acupuncture on dry eye symptom improvement and the potential markers that differentiate between SJS-DES and Non-SJS-DES patients. The goal is to develop a comprehensive integrated care model for early screening, diagnosis, and personalized treatment plans for Dry Eye Syndrome and Sjögren's Syndrome, achieving the ultimate objective of Holistic Health Care.

Detailed description

Method: This randomized, double-blind, placebo-controlled clinical trial aims to evaluate the efficacy of adding laser acupuncture at Fengchi (GB20), Zanzhu (BL2), Hegu (LI4), and Quchi (LI11) acupoints to standard care for the treatment of dry eye symptoms in both Sjögren's Syndrome-related dry eye (SJS-DES) and non-Sjögren's Syndrome-related dry eye (Non-SJS-DES) populations. A total of 140 dry eye patients will be recruited and divided into two groups: 70 participants with SJS-DES and 70 with Non-SJS-DES. Participants will be randomly assigned into three groups: Sham+LA group (60 participants receiving 4 weeks of placebo laser acupuncture followed by 4 weeks of active laser acupuncture), LA+LA group (60 participants receiving 4 weeks of active laser acupuncture followed by another 4 weeks of active laser acupuncture), and a Waiting List group (20 participants receiving no laser acupuncture treatment). Each session will target the Fengchi (GB20), Zanzhu (BL2), Hegu (LI4), and Quchi (LI11) acupoints bilaterally, performed twice a week. The total study period is 8 weeks, and the treatment efficacy will be assessed at the end of the 8-week treatment. The Waiting List group (20 participants) will not receive any laser acupuncture treatment during this period. Efficacy will be evaluated using the Numerical Rating Scale (NRS), Schirmer's test, Ocular Surface Disease Index (OSDI), EULAR Sjögren's Syndrome Patient Reported Index (ESSPRI), Traditional Chinese Medicine (TCM) tongue diagnosis, TCM pulse diagnosis, TCM constitution questionnaire, TCM heart rate variability analysis, nailfold microcirculation assessment, and iris examination. This study aims to investigate the impact of laser acupuncture on dry eye symptom improvement and the potential markers that differentiate between SJS-DES and Non-SJS-DES patients. The goal is to develop a comprehensive integrated care model for early screening, diagnosis, and personalized treatment plans for Dry Eye Syndrome and Sjögren's Syndrome, achieving the ultimate objective of Holistic Health Care. Expected Results: 1. Assess the therapeutic differences between Sham+LA and LA+LA groups in the SJS-DES population. 2. Assess the therapeutic differences between Sham+LA and LA+LA groups in the Non-SJS-DES population. 3. Evaluate the therapeutic differences between the SJS-DES and Non-SJS-DES populations. Keywords: Dry eye syndrome, Sjögren's syndrome, Laser Acupuncture, GB20, BL2, LI4, LI11

Interventions

The RJ-Laser acupuncture device (Reimers & Janssen GmbH, Waldkirch, Germany) is used with a laser wavelength of 810 nm (infrared). The Bahr frequency B3 is set at 2398 Hz, with an energy output of 400 mW, operating in intermittent pulse mode. Each acupoint is irradiated for 15 seconds. A total of 8 bilateral acupoints are treated per session, with a total treatment time of approximately 120 seconds.

LA+LA group of SJS-DES, Sham+LA group of SJS-DES, LA+LA group of Non-SJS-DES, Sham+LA group of Non-SJS-DES and Waiting list will take the Numerical Rating Scale (NRS).

DIAGNOSTIC_TESTSchirmer's test

LA+LA group of SJS-DES, Sham+LA group of SJS-DES, LA+LA group of Non-SJS-DES, Sham+LA group of Non-SJS-DES and Waiting list will take the Schirmer's test.

DIAGNOSTIC_TESTOcular Surface Disease Index (OSDI)

LA+LA group of SJS-DES, Sham+LA group of SJS-DES, LA+LA group of Non-SJS-DES, Sham+LA group of Non-SJS-DES and Waiting list will take the OSDI test.

LA+LA group of SJS-DES, Sham+LA group of SJS-DES, LA+LA group of Non-SJS-DES, Sham+LA group of Non-SJS-DES and Waiting list will take the ESSPRI.

LA+LA group of SJS-DES, Sham+LA group of SJS-DES, LA+LA group of Non-SJS-DES, Sham+LA group of Non-SJS-DES and Waiting list will take the Traditional Chinese Medicine (TCM) tongue diagnosis.

DIAGNOSTIC_TESTTraditional Chinese Medicine (TCM) pulse diagnosis

LA+LA group of SJS-DES, Sham+LA group of SJS-DES, LA+LA group of Non-SJS-DES, Sham+LA group of Non-SJS-DES and Waiting list will take the Traditional Chinese Medicine (TCM) pulse diagnosis.

DIAGNOSTIC_TESTTraditional Chinese Medicine (TCM) constitution questionnaire

LA+LA group of SJS-DES, Sham+LA group of SJS-DES, LA+LA group of Non-SJS-DES, Sham+LA group of Non-SJS-DES and Waiting list will take the Traditional Chinese Medicine (TCM) constitution questionnaire.

DIAGNOSTIC_TESTTraditional Chinese Medicine (TCM) heart rate variability analysis

LA+LA group of SJS-DES, Sham+LA group of SJS-DES, LA+LA group of Non-SJS-DES, Sham+LA group of Non-SJS-DES and Waiting list will take the Traditional Chinese Medicine (TCM) heart rate variability analysis.

DIAGNOSTIC_TESTnailfold microcirculation assessment

LA+LA group of SJS-DES, Sham+LA group of SJS-DES, LA+LA group of Non-SJS-DES, Sham+LA group of Non-SJS-DES and Waiting list will take the nailfold microcirculation assessment.

DIAGNOSTIC_TESTiris examination

LA+LA group of SJS-DES, Sham+LA group of SJS-DES, LA+LA group of Non-SJS-DES, Sham+LA group of Non-SJS-DES and Waiting list will take the iris examination.

OTHERSham Laser Acupuncture

The RJ-Laser acupuncture device (Reimers & Janssen GmbH, Waldkirch, Germany) is used with a laser wavelength of 810 nm (infrared). The Bahr frequency B3 is set at 2398 Hz, with an energy output of 400 mW, operating in intermittent pulse mode. Each acupoint is irradiated for 15 seconds. A total of 8 bilateral acupoints are treated per session, with a total treatment time of approximately 120 seconds. The sham laser acupuncture procedure follows the same process as the true laser acupuncture protocol, including the positioning, cleaning of acupoints, and wearing of protective goggles. However, no laser emission is delivered during the treatment. This ensures a consistent experience for the patient while maintaining the blinding integrity of the study.

Sponsors

Taipei Veterans General Hospital, Taiwan
Lead SponsorOTHER_GOV

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Masking description

The randomization process will be conducted by a statistical expert using permuted block randomization to generate a Clinical Trial Randomized Allocation Table. The allocation details will be sealed in envelopes to ensure blinding. Additionally, individual decoding envelopes will be prepared for each participant to allow emergency unblinding without compromising the trial's integrity. The randomization table and grouping details will be securely stored by the statistical expert and the principal investigator, while the individual decoding envelopes will be kept exclusively by the principal investigator.

Intervention model description

A total of 140 dry eye patients will be recruited and divided into two groups: 70 participants with SJS-DES and 70 with Non-SJS-DES. Participants will be randomly assigned into three groups: Sham+LA group (60 participants receiving 4 weeks of placebo laser acupuncture followed by 4 weeks of active laser acupuncture), LA+LA group (60 participants receiving 4 weeks of active laser acupuncture followed by another 4 weeks of active laser acupuncture), and a Waiting List group (20 participants receiving no laser acupuncture treatment).

Eligibility

Sex/Gender
ALL
Age
20 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

• Dry eye syndrome Inclusion Criteria: 1. aged between 20 and 75 years 2. Schirmer's test less than 10 mm/5 min

Exclusion criteria

1. Pregnancy 2. With eye inflammation or infectious eye disease 3. Accepted operation of eye * Sjögren's syndrome Inclusion Criteria: 1. primary or secondary SS 2. aged between 20 and 75 years 3. fulfilled the 2002 American-European Consensus Criteria for SS (AECG) 4. had no abnormal findings of immune, liver, kidney, or blood function evaluations.

Design outcomes

Primary

MeasureTime frameDescription
Numerical Rating Scale (NRS)one yearNumerical Rating Scale (NRS) is a tool for evaluating pain among the Dry eye syndrome (DES).
Schirmer's testone yearSchirmer's test is a tool for evaluating aqueous tear production among the Dry eye syndrome (DES).
Ocular Surface Disease Index (OSDI)one yearOcular Surface Disease Index (OSDI) is a tool to rate the severity of dry eye disease among the Dry eye syndrome (DES).

Secondary

MeasureTime frameDescription
Traditional Chinese Medicine (TCM) pulse diagnosisone yearTraditional Chinese Medicine (TCM) pulse diagnosis is a tool for detecting tongue expression pulse pattern among the Dry eye syndrome (DES).
Traditional Chinese Medicine (TCM) constitution questionnaireone yearTraditional Chinese Medicine (TCM) constitution questionnaire is a tool for detecting the constitution among the Dry eye syndrome (DES).
Iris examinationone yearIris examination is a tool for detecting the status of iris among the Dry eye syndrome (DES).
Nailfold microcirculation assessmentone yearNailfold microcirculation assessment is a tool for detecting the status of nailfold microcirculation among the Dry eye syndrome (DES).
Traditional Chinese Medicine (TCM) heart rate variability analysisone yearTraditional Chinese Medicine (TCM) heart rate variability analysis is a tool for detecting ratio between High-frequency (HF) activity and low-frequency (LF) activity among the Dry eye syndrome (DES).
EULAR Sjögren's Syndrome Patient Reported Index (ESSPRI)one yearEULAR Sjögren's Syndrome Patient Reported Index (ESSPRI) is a tool for evaluating the symptoms of SJS among the Dry eye syndrome (DES).
Traditional Chinese Medicine (TCM) tongue diagnosisone yearTraditional Chinese Medicine (TCM) tongue diagnosis is a tool for detecting tongue expression among the Dry eye syndrome (DES).

Countries

Taiwan

Contacts

Primary ContactChing-Mao Chang, M.D., Ph.D.
magicbjp@gmail.com886-28757453, 333

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026