ClinicalTrials.gg
RecruitingNCT06765499Updated May 4, 2025

The Study Evaluating the Improvement of Nutritional Status and Frailty With Silkworm Pupa Powder Among Patients With Motor Neuron Disease

An interventional study of Chinese medicine - Silkworm pupa powder and Ultra-low dose silkworm pupa powder in Motor Neuron Disease (MND) and Amyotrophic Lateral Sclerosis (ALS), sponsored by First People's Hospital of Hangzhou. Recruiting at 1 site in China. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2025-05-04.

Primary conditionAmyotrophic Lateral SclerosisRegistry: Motor Neuron DiseaseReclassifiedWhy we changed it
Registry
Motor Neuron Disease — the first condition term the registry derived for this study.
ClinicalTrials.gg
Amyotrophic Lateral Sclerosis
Why
  1. Motor Neuron Disease is a broad heading, used only when no more specific condition is named.
  2. The study's listed conditions name Amyotrophic Lateral Sclerosis, a narrower term within Motor Neuron Disease.
Confidence
High: the new condition is named in the study's own listed conditions. Of 351 hand-checked studies reclassified this way, 68% were exactly right and 84% in the right disease family; the registry's first term was right for 5% (measured 2026-10-21). How we classify →
Wrong?
Tell us the study's main condition →

Sponsored by First People's Hospital of Hangzhou · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Started Mar 2025; still recruiting 1 year 8 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
100
Allocation
Randomized
Ages
18 Years to 80 Years
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 54 studies in Amyotrophic Lateral Sclerosis with a site in China — 23 open to participants now, 28 under way, 1 of them phase 3. Amyotrophic Lateral Sclerosis · China.

Planned enrollment
9th of 38
100 · median 27
Started
2025
with 8 others
No phase
6 of 54
3 open now
Primary completion
2026-12
later than 11 of 27 live
Registered
43rd of 54
by date

Among the 54 studies in Amyotrophic Lateral Sclerosis with a site in China, this one is the 9th largest by planned enrollment of the 38 interventional ones that give a count, is one of 9 that started in 2025, is one of 6 with no phase, reaches primary completion later than 11 of the 27 other live ones, and was the 43rd registered.

Amyotrophic Lateral Sclerosis

978 studies on the registry are indexed under Amyotrophic Lateral Sclerosis; 277 are open to participants now.

Browse Amyotrophic Lateral Sclerosis studies →

Open to participants now

23 of the 54 studies in Amyotrophic Lateral Sclerosis with a site in China are open now. Recruiting first, the newest first:

17 more — sign in →

All 23 open studies →

A study can be open while its sites in China have not opened yet or have stopped. Only those recruiting at a site in China →

Who these studies take

Of the 192 Amyotrophic Lateral Sclerosis studies recruiting now, 117 (61%) set no upper age limit and 23 (12%) stop at 75 or younger; 15 take children under 18; 55 take healthy volunteers.

This study: 18 Years to 80 Years · all sexes · no healthy volunteers.

The full table on the hub →

This tab as a report to print or save as PDF → With an account.

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Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 54 studies in Amyotrophic Lateral Sclerosis with a site in China, or all of them as a file.
02

Study summary

Motor Neuron Disease (MND) is the result of dysfunction of the upper motor neurons in the precentral gyrus of the frontal lobe or the lower motor neurons in the ventral horn of the spinal cord. Amyotrophic lateral sclerosis (ALS) is the most common, disabling, and fatal motor neuron disease in adults. Sarcopenia is a syndrome characterized by progressive loss of skeletal muscle mass, accompanied by a reduction in muscle strength and (or) function, and it is an important feature of MND. Aging is an objective and inevitable process that involves the gradual degeneration and loss of physiological functions in various tissues, organs, and cells. With the continuous accumulation of various injuries, the body eventually exhibits signs of frailty such as fatigue, reduced muscle strength, and weight loss. Data from adult ALS patients indicate that 58% of patients are at risk of frailty. Silkworm pupa contains high-quality animal protein and has a wide range of activities in antioxidant, antitumor, antibacterial, and immune enhancement, making it highly nutritious and medicinally valuable. Silkworm pupa extracts can enhance grip strength in older adults with relatively low skeletal muscle mass. As a natural food ingredient with high safety, the value of silkworm pupa in ALS patients lacks corresponding research, which limits its further application in clinical practice. This study aims to select ALS patients as the research subjects and use a randomized, controlled, double-blind prospective study design to evaluate the effectiveness of silkworm pupa tablets in improving sarcopenia, frailty, and quality of life in ALS patients. The study strives to improve the frailty condition of ALS patients and enhance their quality of life by supplementing nutrition, thereby providing new strategies for comprehensive intervention and management of ALS patients.

03

Conditions studied

  • Motor Neuron Disease (MND)
  • Amyotrophic Lateral Sclerosis (ALS)

Browse trials for

Keywords

  • Amyotrophic Lateral Sclerosis
  • Motor Neuron Disease
  • Frailty
  • Nutritional Status
04

In context

Amyotrophic Lateral Sclerosis Reclassified

978 studies on the registry are indexed under Amyotrophic Lateral Sclerosis; 277 are open to participants now.

This study's planned enrollment of 100 is above the median of 38 across 662 interventional studies indexed under Amyotrophic Lateral Sclerosis.

Browse Amyotrophic Lateral Sclerosis studies →

Lead sponsor

First People's Hospital of Hangzhou is the lead sponsor of 73 studies on the registry; 28 are open to participants now.

Compared within Amyotrophic Lateral Sclerosis, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Motor Neuron Disease. The counts are of registry records indexed under each term, refreshed daily. How we classify →

05

Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Voluntarily participate in the clinical study, fully understand and be informed about the study, and sign the Form (ICF); willing to follow and capable of completing all trial procedures.
  • Gender is not limited, age at the time of signing ICF: ≥18 years old, ≤80 years old; if the ALS patient is at least 18 years old, then the weight must be over 40 kilograms.
  • Diagnosis conforms to the confirmed and probable ALS in the ALS2020 diagnostic criteria (Gold Coast Criteria).
  • Clinical, neurophysiological, or pathological examination confirms evidence of lower motor neuron involvement.
  • Frailty Phenotype scale (FP) ≥1.
  • Exclude other diseases.
  • Agree to provide peripheral blood, fecal, and urine samples for biomarker analysis during the study period.

Exclusion criteria

Exclusion Criteria:

  • Patients with other neurological diseases similar to ALS symptoms or affecting drug efficacy evaluation, such as cervical spondylosis, lumbar disease, dementia, etc.
  • Patients with other diseases, such as Multiple Sclerosis (MS), Polymyositis, Myasthenia Gravis, Guillain-Barré Syndrome, Ankylosing Spondylitis, Rheumatoid Arthritis, Systemic Lupus Erythematosus, Vitiligo, etc.
  • Severe renal insufficiency: \< 30 mL/min (Cockcroft-Gault formula), or other known severe renal insufficiency diseases.
  • Severe liver damage: , AST > 3 times the , or other known liver diseases such as acute and chronic active hepatitis, cirrhosis, etc.
  • Patients with severe pulmonary function insufficiency such as (COPD), pulmonary fibrosis, etc.
  • During the screening period, patients with acute myocardial infarction or interventional treatment within the last 6 months, heart failure patients (classified as class III-IV patients).
  • Patients with other severe primary diseases of the nervous system, heart, lungs, hematopoietic system, or endocrine system, and mental illness patients.
  • Those suspected or confirmed to have a history of alcohol or drug abuse.
  • Expected survival ≤ 3 months.
  • Pregnant or breastfeeding women, subjects of reproductive age (including male subjects who have had heterosexual intercourse and their female partners with ) who plan to become pregnant or are unwilling to take effective measures from the start of screening to 3 months after discontinuing medication.
  • Those who are allergic to known ingredients of the trial products; or have a history of drug allergies or severe allergic diseases (anaphylactic shock, etc.).
  • During the study, individuals assessed by researchers as potential drug abusers who may affect the efficacy of therapeutic drugs.
  • Presence of other severe physical or mental diseases or abnormal laboratory tests that may increase the risk of participating in the study and patients deemed unsuitable for participation by the researcher.
  • Patients with malignant tumors.
Terms in these criteria, in plain language(9)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

Creatinine clearance (CrCl)

How quickly the kidneys clear creatinine, a waste product, from the blood. A study may estimate it from a blood test with age, weight and sex (often by the Cockcroft–Gault formula), or measure it using blood and urine collected over a set time. Given in mL/min; higher is better.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

COPD

Chronic obstructive pulmonary disease: long-term lung disease that makes it hard to breathe out, including emphysema and chronic bronchitis.

NYHA class (heart failure)

The New York Heart Association’s four classes of how much heart failure limits physical activity.

I
No limits: ordinary activity causes no undue tiredness or breathlessness.
II
Slight limits: comfortable at rest, ordinary activity causes symptoms.
III
Marked limits: comfortable at rest, less than ordinary activity causes symptoms.
IV
Symptoms even at rest; any activity makes them worse.

Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

06

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Care provider, Investigator)
Enrollment
100 participants (estimated)

Study arms

  • Experimental
    Silkworm pupa powder

    The intervention in the trial involves providing silkworm pupa powder, twice a day, with two packets each time, to be taken before meals.The dose of gastrointestinal weak people was halved, twice a day, 1 pack each time, half an hour before breakfast and dinner.

    Other: Chinese medicine - Silkworm pupa powder

  • Placebo comparator
    Placebo

    The intervention for the placebo group involves administering a placebo containing 0.5% of the active ingredient, twice daily, with two packets each time, taken before meals.The dose of gastrointestinal weak people was halved, twice a day, 1 pack each time, half an hour before breakfast and dinner.

    Other: Ultra-low dose silkworm pupa powder

Interventions

  • OtherChinese medicine - Silkworm pupa powder

    Silkworm pupa contains high-quality animal protein and has a wide range of activities in antioxidant, antitumor, antibacterial, and immune enhancement, making it highly nutritious and medicinally valuable.

  • OtherUltra-low dose silkworm pupa powder

    0.5% of the effective components in the experimental group

07

What researchers measure

Primary outcomes

  1. Assessing patient nutritional improvement using Third Lumbar Skeletal Muscle Index (L3-SMI).

    The nutritional index is evaluated using the Third Lumbar Skeletal Muscle Index (L3-SMI): A single cross-sectional image of L3 is obtained through CT scanning, and skeletal muscles in the image are identified and quantified using a HU threshold of -29 to 150. The total muscle area at this level is calculated using 3D Slicer software, and then divided by the square of the height (m\^2) to obtain the Third Lumbar Skeletal Muscle Index (L3-SMI).

    Time frame: The 0th、 4th 、8th and 12th week after taking Silkworm Silkworm pupa powder.

  2. The improvement of frailty in patients treated by the Frailty Phenotype (FP) Scale assessment.

    Frailty Phenotype Scale: The Frailty Phenotype (FP) Scale encompasses the following five clinical criteria: * Unintentional Weight Loss * Self-reported Fatigue * Decreased Physical Activity * Slowed Gait Speed * Weak Grip Strength Each criterion is scored as 1 point if met, with a total score ranging from 0 to 5. A score of 0 indicates robust health, a score of 1 to 2 indicates pre-frailty, and a score of 3 or higher indicates frailty. This scale is used to assess the frailty status of individuals, providing a separate outcome measure that focuses on the physical vulnerability and decreased resilience commonly associated with aging.

    Time frame: The 0th、 4th 、8th and 12th week after taking Silkworm Silkworm pupa powder.

Secondary outcomes

  1. Using the Amyotrophic Lateral Sclerosis Functional Rating Scale-Revised (ALSFRS-R) to assess patient functional status, thereby evaluating the improvement of neurological dysfunction.

    Amyotrophic Lateral Sclerosis Functional Rating Scale-Revised (ALSFRS-R) consists of 12 items with a total score of 48 points, where each item is rated from 0 to 4, with 0 indicating complete loss of function and 4 indicating normal function. The minimum score is 0 points, which indicates that the patient is completely unable to perform any of the tasks listed in the scale, while the maximum score is 48 points, indicating that the patient can perform all tasks normally. A higher score implies better functional status in the patient, meaning less severe neurological impairment; a lower score indicates worse functional status, meaning more severe neurological impairment. This scale is a specific tool for evaluating the functional status of patients with Amyotrophic Lateral Sclerosis, offering a distinct outcome measure that quantifies the progression of the disease.

    Time frame: The 0th、 4th 、8th and 12th week after taking Silkworm Silkworm pupa powder.

  2. Assess the respiratory function of patients with Amyotrophic Lateral Sclerosis undergoing treatment using the Oxygenation Index.

    Oxygenation Index: The Oxygenation Index combines arterial oxygen partial pressure (PaO2) and inspired oxygen fraction (FiO2), calculated using the formula Oxygenation Index (mmHg) = PaO2 (mmHg) / FiO2 (%). It provides a single value indicating a patient's oxygenation status relative to the oxygen concentration they are breathing, thereby characterizing respiratory function. During the treatment process, the change coefficients of the Oxygenation Index after intervention in the silkworm pupa treatment group and the placebo group are calculated, using this coefficient to characterize the relief ratio of respiratory function following Silkworm pupa powder intervention.

    Time frame: The 0th、 4th 、8th and 12th week after taking Silkworm Silkworm pupa powder.

08

Study locations

1 of 1 sites recruiting
09

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Mar 2025 (actual). Primary completion is estimated for Dec 2026, 21 months after the start.

Of 134 non-industry interventional studies with no phase under Amyotrophic Lateral Sclerosis, half reached primary completion within 40 months of starting (the median), counting those still running; a quarter within 24 and three quarters within 60. This study's planned 21 months is below that.

Counting every sponsor, half of 154 studies reached it within 35 months; a quarter within 23 and three quarters within 60.

How these figures are worked out, and which studies are left out of them.

Registered
Dec 11, 2024
First posted
Jan 9, 2025
StartActual
Mar 4, 2025
Primary completionEst.
Dec 30, 2026
CompletionEst.
Dec 30, 2026
Last update
May 4, 2025
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on May 4, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT06765499
Lead sponsor
First People's Hospital of Hangzhou
Collaborators
Hangzhou Institute of Medicine Chinese Academy of Sciences
Responsible party
Buqing Ma, M.M. (Associate Director of Motor Neuron Disease piagnosis and Treatment center, First People's Hospital of Hangzhou) — Principal investigator
First posted
Jan 9, 2025
Start date
Mar 4, 2025
Primary completion
Dec 30, 2026 (estimated)
Completion
Dec 30, 2026 (estimated)
Last update
May 4, 2025

Study contacts

Ma Buqing Attending Physician
Contact
757318708@qq.com
0571-56007429

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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