Diabetic peripheral neuropathy (DPN) is the most common chronic complication of diabetes mellitus that has a considerable impact on quality of life, but there are few effective therapeutic strategies. The aim of this trial is to determine the efficacy and safety of manual acupuncture (MA) versus sham acupuncture (SA) for DPN.
A total of 118 patients with DPN will be recruited and randomly assigned in a 1:1 ratio to either the MA group or SA group. All patients will receive 24 sessions over 12 weeks. Participants will complete the trial by visiting the research center at month 6 for a follow-up assessment. The primary outcome is peroneal motor nerve conduction velocity (peroneal MNCV) at week 12 compared with baseline. Secondary outcomes include peroneal motor nerve action potential amplitude (peroneal MNAP) and latent period (peroneal MNLP), sural sensory nerve conduction velocity (sural SNCV), action potential amplitude (sural SNAP) and latent period (sural SNLP), fasting plasma glucose (FPG), 2-h postprandial blood glucose (2hPG), glycated hemoglobin (HbAlc) at week 12 compared with baseline, Michigan Neuropathy Screening Instrument (MNSI) score and Diabetes Specific Quality of Life scale (DSQL) at week 12 and month 6 compared with baseline. Safety will be assessed during the whole trial. Masking effectiveness will be assessed by patients.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
118
The obligatory acupoints include Zhongwan (CV12), bilateral Weiwanxiashu (EX-B3), bilateral Ganshu (BL18), bilateral Pishu (BL20), bilateral Shenshu (BL23), bilateral Zusanli (ST36), bilateral Yanglingquan (GB34), bilateral Sanyinjiao (SP6), bilateral Taixi (KI3), and Bafeng (EX-LE10). Additional acupoints Baxie (EX-UE9) will be added when patients' symptoms appear not only in the lower limbs but also in the upper limbs. After skin disinfection, disposable, stainless steel acupuncture needles will be inserted into the skin of acupoint (approximately 10-20 mm depth), and then manipulations of twirling, lifting, and thrusting will be performed on all needles for at least 10 s to reach De qi (a compositional sensation including soreness, numbness, distention, and heaviness), which is believed to be an essential component for acupuncture efficacy. Needles will be retained in these acupoints for 20 min.
Patients in the SA group will receive sham acupuncture. The procedure and duration of treatment in the SA group will be identical in the MA group except the needles are blunt tip and there will be no skin penetration and needle manipulation for De qi.
LongHua Hospital Shanghai University of Traditional Chinese Medicine
Shanghai, Shanghai Municipality, China
RECRUITINGPeroneal Motor Nerve Conduction Velocity
Measurement by electromyography
Time frame: 12 week
Glycated hemoglobin (HbA1c)
Observe the changes during the study period
Time frame: 12 week
Fasting plasma glucose (FPG)
Observe the changes during the study period
Time frame: 12 week
2-h postprandial blood glucose (2hPG)
Observe the changes during the study period
Time frame: 12 week
Michigan Neuropathy Screening Instrument (MNSI) score
The MNSI is a clinical and semi-quantitative evaluation of neuropathy that includes medical history and physical assessment. Medical history will be completed by patients with scores ranging between 0 and 13. Physical assessment will be completed by health professionals with five indicators and the aggregate score ranging between 0 and 10: foot appearance (0 and 1 for normal and abnormal, respectively), ulceration (0 and 1 for normal and abnormal, respectively), ankle reflex (0, 0.5, and 1 for normal, reenforced, and absent, respectively), vibration test (0, 0.5, and 1 for normal, weakened, and absent, respectively), and monofilament examination (0, 0.5, and 1 for normal, weakened, and absent, respectively) of feet on both sides.
Time frame: 12 week
Quality of life (QoL)
Disease-specific QoL will be assessed at baseline and at week 12, month 6 after randomization using Diabetes Specific Quality of Life scale (DSQL). The scale consists of four domains: interference (12 items), psychology (8 items), social relations (4 items), and treatment (3 items). Each item is measured with a 5-point Likert scale ranging from "not at all" to "extremely". Higher scores indicate worse QoL.
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Time frame: 12 week
Sural Sensory Nerve Conduction Velocity
Measurement by electromyography
Time frame: 12 week