Focus of StudyNCT02203318
Can the Hypertrophy of Contralateral Testis Predict the Absence of the Non-palpable Testis in the Boys Aged From 6months to 18months of Age ?
An observational study of Focus of Study, run by Yonsei University at 1 site in South Korea.
Trial summary
The aim of this study is to verify whether the hypertrophy of contralateral testis may predict the absence of the non-palpable testis in the boys younger than 24months of age. According to the previous studies of other countries, the large size of the contralateral testis of the nonpalpable testis has positive… Read more about this study
- Who is it for?
- Ages 6 to 18 months, men onlyHealthy volunteers can take part
- Conditions the study is for
- Focus of Study
- How many people
- 60 participants
- Where
- 1 siteSouth Korea
- Study dates
- Jul 2014to Jun 2015
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 6 to 18 months
- Men only
- Healthy volunteers accepted
- Child
Study population: totally, 72 children : unpalpable testis : 24 children, palpable undescended testis : 24 children, normal control : 24 children
Who may be able to join
- neonates or Infants who visited the out-patient clinic with nonpalpable or undescended testis.(group 1, 2) aged from 6months to 18months
- neonates or Infants aged from 6months to 18months with normal testis (volunteers, Group3)
Who cannot join
- previous history of hormonal therapy.
- chromosomal abnormality
- previous history of abdomen or inguinal area surgery
- children diagnosed with epididymitis or orchitis
- twin baby
- infants with premature (<37 weeks) birth history
Trial locations and contacts
1 site in 1 country.
South Korea1 site
Severance Hospital, Yonsei University College of Medicine
Seoul, Seoul, 120-752
About this study
The aim of this study is to verify whether the hypertrophy of contralateral testis may predict the absence of the non-palpable testis in the boys younger than 24months of age. According to the previous studies of other countries, the large size of the contralateral testis of the nonpalpable testis has positive correlation woth the weak viability of the affected testis. We are going to evaluate this hypothesis with prospective study. 3 groups are going to be enrolled into this study ; non-palpable testis group(Group1), palpable but not normally descended testis group(group2) and control group(group3). The size of testis will be measured with Ultrasound and the length, width and the height will be measured before surgery at outpatient department. For the group 1 \& 2, the viability of the affected testis will be evaluated and compared after surgery. In addition the comparison with normal control group is also going th be conducted.
- Conditions
- Focus of Study
- Keywords
- cryptorchidism, undescended testis, hypertrophy of contralateral testis
- Medical subject headings
- Cryptorchidism
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
| Study group | Role | What they receive |
|---|---|---|
| control | healthy children with normal bilateral testis | |
| undescended palpable testis | patient whose affected testis is not descended to the normal position but palpable and exist intact in the upper area | |
| non-paplpable testis | patient whose affected testis is not palpable during the physical examination |
What is being measured
The primary outcome is the main question the study is designed to answer.
Size of contralateral testis
The testicular size is measured 3-dimensionally with ultrasonography. The length, width and height will be measured and the volume of testis will be evaluated.
Measured: 1 day of initial visit
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted29 Jul 2014 (estimated)
- Study startJul 2014
- Primary completionMay 2015
- Study completionJun 2015
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Focus of StudyStudies of the same condition, open and under way.
- More trials run by Yonsei UniversityThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Case-control
- Time perspective
- Prospective
- Enrolment
- 60 participants (actual)
Sponsor and investigators
- Lead sponsor
- Yonsei University
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02203318
- Sponsor's protocol ID
- 4-2014-0385
- Status last verified
- Oct 2016
- First submitted
- 27 Jul 2014
- Last updated
- 1 Nov 2016
- Results posted
- No
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 1 Nov 2016. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Can the Hypertrophy of Contralateral Testis Predict the Absence of the Non-palpable Testis in the Boys Aged From 6months to 18months of Age ?
- ClinicalTrials.gov ID
- NCT02203318
- Acronym / sponsor ID
- 4-2014-0385
- Conditions
- Focus of Study
- Keywords
- cryptorchidism, undescended testis, hypertrophy of contralateral testis
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 60 participants (actual)
- Lead sponsor
- Yonsei UniversityUniversity, hospital or other
- Study start
- Jul 2014
- Primary completion
- May 2015 (actual)
- Study completion
- Jun 2015 (actual)
- First posted
- 29 Jul 2014 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The aim of this study is to verify whether the hypertrophy of contralateral testis may predict the absence of the non-palpable testis in the boys younger than 24months of age. According to the previous studies of other countries, the large size of the contralateral testis of the nonpalpable testis has positive correlation woth the weak viability of the affected testis. We are going to evaluate this hypothesis with prospective study. 3 groups are going to be enrolled into this study ; non-palpable testis group(Group1), palpable but not normally descended testis group(group2) and control group(group3). The size of testis will be measured with Ultrasound and the length, width and the height will be measured before surgery at outpatient department. For the group 1 \& 2, the viability of the affected testis will be evaluated and compared after surgery. In addition the comparison with normal control group is also going th be conducted.
Study design
- Observational model
- Case-control
- Time perspective
- Prospective
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| control | – | –healthy children with normal bilateral testis |
| undescended palpable testis | – | –patient whose affected testis is not descended to the normal position but palpable and exist intact in the upper area |
| non-paplpable testis | – | –patient whose affected testis is not palpable during the physical examination |
Who may qualify
- Ages
- 6 to 18 months
- Sex
- Male only
- Healthy volunteers
- Accepted
- Age groups
- Child
- Study population
- totally, 72 children : unpalpable testis : 24 children, palpable undescended testis : 24 children, normal control : 24 children
Key inclusion criteria (2 listed)
- neonates or Infants who visited the out-patient clinic with nonpalpable or undescended testis.(group 1, 2) aged from 6months to 18months
- neonates or Infants aged from 6months to 18months with normal testis (volunteers, Group3)
Key exclusion criteria (6 listed)
- previous history of hormonal therapy.
- chromosomal abnormality
- previous history of abdomen or inguinal area surgery
- children diagnosed with epididymitis or orchitis
- twin baby
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Size of contralateral testis
Time frame: 1 day of initial visit
The testicular size is measured 3-dimensionally with ultrasonography. The length, width and height will be measured and the volume of testis will be evaluated.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 1 Nov 2016.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Focus of Study, run by Yonsei University at 1 site in South Korea.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 2 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 1 Nov 2016. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in South Korea. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Size of contralateral testis (time frame: 1 day of initial visit). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 1 Nov 2016; AzTrials last refreshed its copy on 7 Nov 2026.