ClinicalTrials.gg
Not yet recruitingNCT05812235Updated Apr 24, 2023

Bone Microstructure by Using HR-pQCT After Esophagectomy

An observational study in Osteoporosis, Sarcopenia and Esophageal Cancer, sponsored by Nagasaki University. Not yet recruiting. Open to male participants aged 50 Years to 90 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2023-04-24.

Sponsored by Nagasaki University · Observational

From the registry’s dates

  • Primary completion was expected by Mar 2026, 8 months ago, but the record still lists the study as not yet recruiting.
Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
118
Ages
50 Years to 90 Years
Sex
Male
01

Study summary

Esophagectomy is most curative treatment to esophageal cancer. However, osteoporosis , which is characterized by both the loss of bone mass and the deterioration of bone architecture, is a serious complication in the long course after surgery. The aim of the present study was to evaluate osteoporosis by using high-resolution peripheral quantitative computed tomography (HR-pQCT) in the long course after esophagectomy. At least 3 years should have elapsed since operation without recurrence of esophageal cancer.

Read the detailed description

The patients after esophagectomy loss appetite and decrease the weight. Esophagectomy especially cause severe sarcopenia and metabolic change. Osteoporosis, which is characterized by both the loss of bone mass and the deterioration of bone architecture, is a serious complication in the long course after esophagectomy. The primary tools for assessing volumetric density and bone structure are quantitative computed tomography (QCT) and more recently, high-resolution peripheral quantitative computed tomography (HR-pQCT). However the validation of osteoporosis with HR-pQCT in the long course after esophagectomy remain elusive. The aim of the present study was to evaluate osteoporosis by using HR-pQCT in the long course after esophagectomy. At least 3 years should have elapsed since esophagectomy without any recurrence.

02

Conditions studied

  • Osteoporosis
  • Sarcopenia
  • Esophageal Cancer
03

In context

Osteoporosis

1,601 studies on the registry are indexed under Osteoporosis; 209 are open to participants now.

This study's planned enrollment of 118 is below the median of 160 across 455 observational studies indexed under Osteoporosis.

Browse Osteoporosis studies →

Lead sponsor

Nagasaki University is the lead sponsor of 12 studies on the registry; 4 are open to participants now.

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

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Who can participate

Ages eligible
50 Years to 90 Years
Sexes eligible
Male
Accepts healthy volunteers
Yes
Sampling method
Probability sample

Study population

Japanese

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

  • At least 3 years have elapsed since esophagectomy due to esophageal cancer
  • Provide signed

Exclusion criteria

Exclusion Criteria:

  • Current use of the following osteoporosis agents; Teriparatide, Denosumab, and - -
  • bisphosphonate
  • Present (except in situ carcinoma)
  • Radiotherapy
  • Any condition that required chronic (greater than three months cumulative and greater than 5 mg/day) therapy
  • Other diseases which affect bone metabolism Any disorder that, in the opinion of the investigator, may compromise the ability of the subject to give written and/or comply with study procedures Received > 3 months (or equivalent) of osteoporosis treatment Currently enrolled in or has not yet completed at least 1 month since ending other device or drug trial(s), or subject is receiving other investigational agent(s).
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.

Informed consent

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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.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

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Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

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Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
118 participants (estimated)
Target follow-up
2 Days
Patient registry
Yes
Biospecimen retention
Samples without dna

Groups and cohorts

  • Esophagectomy

    48 patients with esophagectomy due to esophageal cancer before no more than 3 years

    Procedure: esophagectomy

  • Healthy Control

    70 patients without gastrectomy , who are similar background in other group, are collected from date Pathologic analysis of primary osteoporosis: investigating age and osteoporosis related changes of bone microstructure by using HR-pQCT (UMIN000023535)

Interventions

  • Procedureesophagectomy

    esophagectomy

06

What researchers measure

Primary outcomes

  1. Comparing bone microstructure in control and Esophagectomy groups

    volumetric bone mineral density

    Time frame: 1day

Secondary outcomes

  1. Comparing bone microstructure with serum biomarkers of osteoporosis

    Correlation between bone mineral density in esophagectomy and biomarkers (25-hydroxyvitaminD, calcium, iPTH, P1NP, ICTP, TRACP5b)

    Time frame: 1day

  2. Comparing bone microstructure with dual-energy X-ray absorptiometry

    Correlation of bone mineral density between esophagectomy and DXA

    Time frame: 1day

07

Study locations

No study locations are listed for this record.

08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

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

Start is estimated for May 2023; primary completion for Mar 2026, 33 months later.

Of 114 non-industry observational studies under Osteoporosis, half reached primary completion within 53 months of starting (the median), counting those still running; a quarter within 24 and three quarters within 113. This study's planned 33 months is below that.

Counting every sponsor, half of 125 studies reached it within 51 months; a quarter within 24 and three quarters within 97.

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

Registered
Apr 2, 2023
First posted
Apr 13, 2023
StartEst.
May 25, 2023
Primary completionEst.
Mar 1, 2026
CompletionEst.
Mar 31, 2027
Last update
Apr 24, 2023
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 Apr 24, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05812235
Lead sponsor
Nagasaki University
Responsible party
Kobayashi Shinichiro (Surgery, Nagasaki University) — Principal investigator
First posted
Apr 13, 2023
Start date
May 25, 2023 (estimated)
Primary completion
Mar 1, 2026 (estimated)
Completion
Mar 31, 2027 (estimated)
Last update
Apr 24, 2023

Study contacts

Shinichiro Kobayashi
Contact
shinichirokobayashi@nagasaki-u.ac.jp
0958197316

Oversight

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

Not currently enrolling

This study is not yet recruiting, as verified in Apr 2023. You cannot join it, but the record below documents what was studied.

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