Effects of Non-Invasive Superficial Craniocervical Lymphatic Drainage (NSCLD) on Memory and Cognitive Function in Adults With Sleep Deprivation: A Proof-of-Concept Study
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: Non-Invasive Superficial Craniocervical Lymphatic Drainage (NSCLD), sham-intervention treatment.
- Who it may be relevant to
- Registry conditions: Sleep Deprivation. Basic parameters: from 18 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- China
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Overview
This Effects of Non-Invasive Superficial Craniocervical Lymphatic Drainage (NSCLD) on Memory and Cognitive Function in Adults with Sleep deprivation: A Proof-of-Concept Study aims to investigate the effects of Non-Invasive Superficial Craniocervical Lymphatic Drainage (NSCLD) on memory and cognitive function in adults experiencing sleep deprivation(SD). Given the known impact of SD on cognitive performance, this study seeks to explore whether NSCLD, as a non-invasive intervention, can mitigate the cognitive impairments associated with SD.
Detailed description
Sleep deprivation (SD) is widespread in modern society, particularly among medical students, residents, and individuals in high-stress occupations. Numerous studies have demonstrated that acute sleep deprivation significantly impairs cognitive processes such as attention, working memory, and executive function. Even short-term cognitive impairment can have serious consequences, including impaired judgment, slowed reaction times, and increased error rates.
Currently, interventions targeting cognitive decline following sleep deprivation are limited. Common strategies primarily include medications (such as caffeine and modafinil) and restorative sleep. However, these methods have limitations in both clinical and real-life settings: on one hand, medications may lead to tolerance and side effects, and on the other hand, restorative sleep often cannot reverse cognitive impairment in the short term. Therefore, developing a safe, convenient, and rapidly effective non-pharmacological intervention is of great significance.
In recent years, the glymphatic system has garnered increasing attention. This system is believed to play a key role in clearing metabolic waste from the brain, regulating sleep structure, and maintaining neurocognitive function. Superficial craniocervical lymphatic drainage (SCLD) has been proposed as a potential mechanism to improve cognitive function by enhancing the flow of cerebrospinal fluid (CSF) and lymph, reducing neuroinflammation, and minimizing the accumulation of metabolic waste.
In June 2025, a study published in Nature provided the first in vivo evidence supporting this hypothesis. Researchers applied non-invasive mechanical stimulation to the superficial lymphatic system on the skin surface of the mouse neck, resulting in a doubling of CSF drainage efficiency to cervical lymph nodes and correction of impaired brain-lymphatic efflux function in aged mice. These findings provide direct mechanistic support for the potential application of non-invasive SCLD intervention in humans.
Therefore, this study aims to establish an acute sleep deprivation model in healthy adults and explore the immediate effects of NSCLD intervention on cognitive function, with the goal of providing preliminary clinical evidence for non-pharmacological intervention strategies related to the brain-lymphatic pathway.
Interventions
- Device Non-Invasive Superficial Craniocervical Lymphatic Drainage (NSCLD)
Participants will be randomly assigned to either an intervention group receiving NSCLD or a control group receiving a sham-intervention treatment. Cognitive function will be assessed using standardized tests before and after the intervention. - Device sham-intervention treatment
Participants will be randomly assigned to either an intervention group receiving NSCLD or a control group receiving a sham-intervention treatment. Cognitive function will be assessed using standardized tests before and after the intervention.
Primary outcome measures
- Digit Span Test [Time frame: Day 1 (Baseline) and Day 2, repeat after a 2-week washout period]
- Montreal Cognitive Assessment (MoCA) [Time frame: Day 1 (Baseline) and Day 2, repeat after a 2-week washout period]
Secondary outcome measures (7)
- Changes in anxiety, stress, irritability, etc. before and after instant massage [Time frame: Day 1 (Baseline) and Day 2, repeat after a 2-week washout period]
- Brain metabolic markers and other metabolic indicators [Time frame: Day 1 (Baseline) and Day 2, repeat after a 2-week washout period]
- EEG power in alpha, beta, delta and theta band [Time frame: Day 1 (Baseline) and Day 2, repeat after a 2-week washout period]
- Heart rate variability (HRV) [Time frame: Day 1 (Baseline) and Day 2, repeat after a 2-week washout period]
- modified TOEFL iBT [Time frame: Day 1 (Baseline) and Day 2, repeat after a 2-week washout period]
- Computerized Cognitive Assessment [Time frame: Day 1 (Baseline) and Day 2, repeat after a 2-week washout period]
- Functional magnetic resonance imaging (fMRI) [Time frame: Day 1 (Baseline) and Day 2, repeat after a 2-week washout period]
Eligibility criteria
Inclusion criteria
- College student ≥18 years, all of whom have passed a standardized entrance examination;
- No failed exams during the course of study;
- Sleep deprivation;
- In good health, with no mental or psychological disorders;
- No recent use of medications that may affect memory and cognition;
- Voluntary participation and able to undergo cognitive function and memory testing;
- Informed consent provided
Exclusion criteria
- Pregnant or breastfeeding women.
- Presence of acute or chronic medical conditions (e.g., severe hypertension, diabetes, cardiovascular disease) that could confound the results.
- History of craniocervical trauma or surgery.
- Current use of sedative or anxiolytic medications that could influence sleep or cognitive function.
- Participants who are unable to follow the procedures or complete the assessments
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: Yes
Study design
- Allocation
- Randomized
- Model
- Crossover
- Masking
- Open label
- Primary purpose
- Treatment
Study locations
China · 1 center
- Tianjin Medical University General Hospital — Tianjin
Identifiers
NCT: NCT07084701 · NSCLD