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

Condition(s) studied

Investigational drug(s) / intervention(s)

Laser acupuncture (LA): 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.

Numerical Rating Scale (NRS): 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).

Schirmer'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.

Ocular 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.

EULAR Sjögren's Syndrome Patient Reported Index (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 ESSPRI.

Traditional Chinese Medicine (TCM) tongue 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) tongue diagnosis.

Traditional 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.

Traditional 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.

Traditional 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.

nailfold 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.

iris 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.

Sham 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.

Study 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."

Eligibility

Primary outcome measure(s)

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

Trial sites (1)

More Taipei Veterans General Hospital, Taiwan trials in Taiwan

Other trials for the same condition