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RecruitingNCT06643780Updated Sep 18, 2026

RANK-ligand Inhibition to Combat Sarcopenia With Underlying Osteoporosis

A Phase 4 interventional study of Denosumab and Zolendronic Acid in Sarcopenia in Elderly, sponsored by Prince of Wales Hospital, Shatin, Hong Kong. Recruiting at 1 site in China. Open to participants aged 65 Years and older. Per ClinicalTrials.gov, last updated 2026-09-18.

Sponsored by Prince of Wales Hospital, Shatin, Hong Kong · Phase 4, Interventional, and Treatment

From the registry’s dates

  • Registered 5 months after the study started (first participant enrolled Apr 2024, registered Sep 2024).
  • Started Apr 2024; still recruiting 2 years 7 months later.
Phase
Phase 4
Study type
Interventional
Enrollment
120
Allocation
Randomized
Ages
65 Years and older
Sex
All
01

Study summary

The objective of this study was to conduct a randomized, double-blind, double-dummy active controlled trial to determine the efficacy of denosumab in treating sarcopenia with underlying osteoporosis.

Read the detailed description

Aims:

  1. To assess whether receptor activator of nuclear factor-kB ligand (RANKL)-inhibition can treat sarcopenia in osteosarcopenic patients, in terms of appendicular skeletal muscle mass (ASM), handgrip strength, and physical performance.
  2. To assess whether RANKL-inhibition improves quality of life, and decreases falls, fractures, hospital admissions and mortality in osteosarcopenic patients.
02

Conditions studied

  • Sarcopenia in Elderly

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03

In context

Sarcopenia

1,329 studies on the registry are indexed under Sarcopenia; 420 are open to participants now.

This study's planned enrollment of 120 is above the median of 60 across 855 interventional studies indexed under Sarcopenia.

Browse Sarcopenia studies →

Lead sponsor

Prince of Wales Hospital, Shatin, Hong Kong is the lead sponsor of 27 studies on the registry; 15 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
65 Years and older
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

  • Elderly males or females aged 65 years or older
  • diagnosed with osteosarcopenia (sarcopenia diagnosis based on AWGS 2019 guidelines - low appendicular skeletal muscle mass (ASM) by Dual-energy X-ray absorptiometry (DXA) (M:\<7.0kg/m2, F:\<5.4kg/m2) AND low handgrip strength (M:\<28kg, F:\<18kg) OR low physical performance (6-metre walk: \<1.0m/s or 5-time chair stand test ≥ 12 s); osteoporosis diagnosed based on World Health Organization (WHO) criteria with DXA scan T-score ≤ -2.5)
  • Willing and able to comply with study protocol including follow-up evaluations.

Exclusion criteria

Exclusion Criteria:

  • history of recent fracture i.e., within 3 months
  • history of prior anti-osteoporotic drug
  • disease or medication affecting bone or muscle metabolism
  • Chairbound or bedbound
  • Unable to agree for consent
  • to drug i.e., Denosumab or Zoledronic Acid
  • Underlying or disease known to cause cachexia
  • severe renal impairment e.g., (CrCl) \< 35ml/min
  • moderate to severe liver failure ( Class B or C).
Terms in these criteria, in plain language(4)

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.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — 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.

Child-Pugh class

A score of how well the liver works in people with liver disease such as cirrhosis: class A is mild, B moderate and C severe.

05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Investigator, Outcomes assessor)
Enrollment
120 participants (estimated)

Study arms

  • Active comparator
    Denosumab group

    60mg subcutaneous Denosumab (1mL solution) every 6 months and intravenous placebo (100mL normal saline) once yearly

    Drug: Denosumab

  • Placebo comparator
    Zolendronic acid group

    5mg intravenous Zoledronic Acid (100mL solution) once yearly and subcutaneous placebo (1mL normal saline) every 6 months

    Drug: Zolendronic Acid

Interventions

  • 60mg subcutaneous Denosumab (1mL solution) every 6 months and intravenous placebo (100mL normal saline) once yearly

  • DrugZolendronic Acid

    5mg intravenous Zoledronic Acid (100mL solution) once yearly and subcutaneous placebo (1mL normal saline) every 6 months

06

What researchers measure

Primary outcomes

  1. 6-metre walk

    The time taken to walk 6 metres without deceleration. Average result of 2 trials is recorded. Slow speed is defined as \&amp;lt;1.0m/s.

    Time frame: From enrollment to the end of treatment at 52 weeks

  2. 5-time chair stand test

    The time to rise from a chair 5 times is recorded. The cut-off for is taken at \&amp;gt;=12 seconds.

    Time frame: From enrollment to the end of treatment at 8 weeks

  3. Appendicular skeletal muscle mass (ASM)

    Determined with Dual-energy X-ray absorptiometry (Horizon®, DXA system, Hologic, USA). Total ASM by DXA is evaluated by segmented measurement of muscle mass at four limbs by operator-defined cutlines at specific anatomical landmarks. ASM is adjusted to square of height to calculate ASMI (kg/m2). Low ASMI by DXA is \&amp;lt; 7 kg/m2 for men and 5.4 kg/m2 for women.

    Time frame: From enrollment to the end of treatment at 52 weeks

  4. Handgrip strength

    Assessed by spring-type hand dynamometer (JAMAR Hand Dynamometer 5030JO). Cut-off for men is \&amp;lt; 28kg, and female is \&amp;lt;18kg. Maximum reading of 3 trials using dominant hand in a maximum-effort isometric contraction

    Time frame: From enrollment to the end of treatment at 52 weeks

  5. Quadriceps muscle strength

    Measured on affected limb with isometric dynamometer (Baseline, Genova, Italy). Subject will sit on a chair with both feet above ground, while raising the affected leg 45° forwards. The dynamometer is placed above the ankle and the subject will push the leg forward with maximum force. Measurements will be repeated 3 times and maximum value will be used for evaluation

    Time frame: From enrollment to the end of treatment at 52 weeks

  6. Balancing ability

    The Basic Balance Master System (NeuroCom International Inc, USA) is used to measure static and dynamic ability of subjects to maintain center of balance. Subjects will stand barefoot on force plate and control location of their center-of-gravity by weight-shifting to eight different targets. Measured parameters of limits of stability test includes directional control (%).

    Time frame: From enrollment to the end of treatment at 52 weeks

  7. Balancing ability

    The Basic Balance Master System (NeuroCom International Inc, USA) is used to measure static and dynamic ability of subjects to maintain center of balance. Subjects will stand barefoot on force plate and control location of their center-of-gravity by weight-shifting to eight different targets. Measured parameters of limits of stability test includes movement velocity (degrees/s)

    Time frame: From enrollment to the end of treatment at 52 weeks

  8. Balancing ability

    The Basic Balance Master System (NeuroCom International Inc, USA) is used to measure static and dynamic ability of subjects to maintain center of balance. Subjects will stand barefoot on force plate and control location of their center-of-gravity by weight-shifting to eight different targets. Measured parameters of limits of stability test includes endpoint excursion (%)

    Time frame: From enrollment to the end of treatment at 52 weeks

  9. Balancing ability

    The Basic Balance Master System (NeuroCom International Inc, USA) is used to measure static and dynamic ability of subjects to maintain center of balance. Subjects will stand barefoot on force plate and control location of their center-of-gravity by weight-shifting to eight different targets. Measured parameters of limits of stability test includes maximum excursion (%)

    Time frame: From enrollment to the end of treatment at 52 weeks

  10. Balancing ability

    The Basic Balance Master System (NeuroCom International Inc, USA) is used to measure static and dynamic ability of subjects to maintain center of balance. Subjects will stand barefoot on force plate and control location of their center-of-gravity by weight-shifting to eight different targets. Measured parameters of limits of stability test includes reaction time(s)

    Time frame: From enrollment to the end of treatment at 52 weeks

Secondary outcomes

  1. Falls

    To assess the occurrence of falls, patients are required to self-report via a fall calendar, which will be returned at 1-year

    Time frame: From enrollment to the end of treatment at 52 weeks

  2. Fracture

    Assess occurrence of a fracture within a year of study period.

    Time frame: From enrollment to the end of treatment at 52 weeks

  3. Quality of life Short Form-36 (SF-36)

    The highest score is 900, and the lowest score is 0. Highest score indicates a better quality of life.

    Time frame: From enrollment to the end of treatment at 52 weeks

  4. Physical activity scale for elderly (PASE)

    It assesses the types of activities typically chosen by older adults, ranging from 0 to 793, with higher scores indicating greater physical activity

    Time frame: From enrollment to the end of treatment at 52 weeks

  5. Food frequency questionnaire

    Daily and weekly intake of 280 food items will be performed using a validated food frequency questionnaire developed in a local population survey. Mean nutrient quantitation and energy intake per day will be calculated referring to food composition tables derived from the Chinese Medical Sciences Institute and Centre for Food Safety in Hong Kong.

    Time frame: From enrollment to the end of treatment at 52 weeks

  6. Hospital admissions

    Number and cause of emergency hospital admission within 1 year of study period are documented.

    Time frame: From enrollment to the end of treatment at 52 weeks

  7. Mortality

    Mortality within 1-year of study period is documented.

    Time frame: From enrollment to the end of treatment at 52 weeks

07

Study locations

1 of 1 sites recruiting
08

References and documents

Publications

  • Wong RMY, Wong PY, Liu C, Tang N, Wan RCW, Liu WH, Cui C, Zhang N, Kwok TCY, Law SW, Cheung WH. RANK-ligand inhibition to combat sarcopenia with underlying osteoporosis: a study protocol for a randomized, double-blind, double-dummy, active-controlled trial. Trials. 2025 Aug 4;26(1):269. doi: 10.1186/s13063-025-08976-7. PubMed 40760465 ↗

Individual participant data

Plan to share: No

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Started Apr 2024 (actual). Primary completion is estimated for Apr 2027, 36 months after the start.

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

Registered
Sep 15, 2024
First posted
Oct 16, 2024
StartActual
Apr 9, 2024
Primary completionEst.
Apr 2027
CompletionEst.
Oct 2027
Last update
Sep 18, 2026
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 Sep 18, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06643780
Lead sponsor
Prince of Wales Hospital, Shatin, Hong Kong
Responsible party
Ronald Man Yeung WONG (Clinical Associate Professor, Prince of Wales Hospital, Shatin, Hong Kong) — Principal investigator
First posted
Oct 16, 2024
Start date
Apr 9, 2024
Primary completion
Apr 2027 (estimated)
Completion
Oct 2027 (estimated)
Last update
Sep 18, 2026

Study contacts

Ronald Man Yeung Wong
Contact
ronald.wong@cuhk.edu.hk
852 3505 1654

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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Studies of the drug tested here: Denosumab

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