Lung CancerPhase 4BabyscopeNCT02490059
Ultrathin Bronchoscopy for Solitary Pulmonary Nodules
A Phase 4 study testing bronchoscopy in people with Lung Cancer, run by University of Zurich at 1 site in Switzerland.
Trial summary
The evaluation of solitary pulmonary nodules (SPN) requires a balance between procedure-related morbidity and diagnostic yield, particularly in areas where tuberculosis is endemic. Data on ultrathin bronchoscopy (UB) for this purpose is limited. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Lung Cancer
- What is being tested?
- bronchoscopy
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 40 participants
- Where
- 1 siteSwitzerland
- Study dates
- Nov 2000to May 2015
- Phase
- Phase 4
- 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 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Pulmonary nodule on a recent CT
- non-visible on standard-size bronchoscopy
Who cannot join
- missing informed consent
Trial locations and contacts
1 site in 1 country.
Switzerland1 site
University Hospital Zurich
Zurich, Canton of Zurich, 8091
About this study
Official title: Ultrathin Bronchoscopy for Solitary Pulmonary Nodules: A Randomised Pilot Trial
The evaluation of solitary pulmonary nodules (SPN) requires a balance between procedure-related morbidity and diagnostic yield, particularly in areas where tuberculosis is endemic. Data on ultrathin bronchoscopy (UB) for this purpose is limited. In this prospective randomised trial we compared diagnostic yield and adverse events of UB with standard-size bronchoscopy (SB) in a cohort of patients with SPN located beyond the visible range of SB.
Read the detailed description
The present prospective single-centre randomised pilot study was performed at Tygerberg Academic Hospital, a tertiary university hospital in Cape Town, South Africa, with a referral drainage area of 1.5 million people and tuberculosis notification rate of up to 1'000/100'000 persons per year when the study was performed. Between November 2000 and November 2003 all patients referred to the lung unit with single pulmonary lesion ≤ 6 cm in diameter on chest computed tomography (CT) were included. SPN was defined as a single and circumscribed pulmonary lesion with a diameter ≤ 6.0 cm, surrounded by aerated lung tissue, and without evidence of atelectasis, pneumonitis, or cavity on CT scan. Location and maximal diameter of all SPNs were recorded from the chest CT prior to enrolment of patients. Inclusion criteria were a previous cytological and microbiological negative sputum examination, absence of enlarged mediastinal or hilar lymph nodes on chest CT scan, and informed consent obtained before start of the procedure. Exclusion criteria were SPN with lesion size unchanged over two years, inability to undergo bronchoscopy or thoracotomy, and pregnancy. Participants with consent for participation in the study in whom the lesion was found to be visible on SB were then not randomised and not considered part of the study population. Written informed consent was obtained from all patients before inclusion in the study.
- Conditions
- Lung Cancer
- Being tested
- bronchoscopy
- Medical subject headings
- Lung Neoplasms
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
bronchoscopyOther
Bronchoscopy for diagnosis of pulmonary nodules
| Study group | Role | What they receive |
|---|---|---|
| Standard size bronchoscopy | Active comparator | ll procedures were started using SB with an external diameter of 5.0-6.0 mm with a biopsy channel of 2.2-2.8 mm (models Olympus BF-30 and BF-1T160, Olympus, Tokyo, Japan). If during SB the lesion was endoscopically visible the bronchoscopy was continued as standard diagnostic procedure and the patients were excluded from the analysis. Only if no tumour was visible during complete inspection of the bronchial tree using the SB, a participant was randomised by opening a numbered sealed opaque envelope. Randomisation was performed using sequentially numbered (1-40) sealed opaque envelopes (block randomisation: block size 4). For subjects allocated to the SB group, the examination was immediately continued with the same SB bronchoscope. Receives: Other: bronchoscopy |
| Ultrahin bronchoscopy | Experimental | For subjects randomised to UB, the instrument was changed immediately to an Olympus BF-XP 40 ultrathin bronchoscope with an outer diameter of 2.8 mm and a working channel 1.2 mm during the same bronchoscopy session. Receives: Other: bronchoscopy |
What is being measured
The primary outcome is the main question the study is designed to answer.
Sensitivity
Sensitivity of the diagnosis of malignancy. Biopsy specimens obtained by bronchoscopy were compared with the diagnosis made by surgical resection or CT-guided trans-thoracic needle aspiration if applicable. Efforts were made to obtain confirmatory histological diagnosis for all patients. Alternatively, when invasive diagnosis was not feasible or appropriate (as assessed by a multidisciplinary tumour board) radiological follow-up examinations were performed over two years.
Measured: 2 years
Secondary outcomes (1)
Diagnostic yield
Diagnostic yield of UB compared to SB. Biopsy specimens obtained by bronchoscopy were compared with the diagnosis made by surgical resection or CT-guided trans-thoracic needle aspiration if applicable. Efforts were made to obtain confirmatory histological diagnosis for all patients. Alternatively, when invasive diagnosis was not feasible or appropriate (as assessed by a multidisciplinary tumour board) radiological follow-up examinations were performed over two years.
Measured: 2 years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted3 Jul 2015 (estimated)
- Study startNov 2000
- Primary completionNov 2003
- Study completionMay 2015
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Lung CancerStudies of the same condition, open and under way.
- More trials run by University of ZurichThe 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
- Interventional
- Phase
- Phase 4
- Primary purpose
- Diagnosis
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 40 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of Zurich
- Sponsor type
- University, hospital or other
- Collaborators
- University of Stellenbosch
- Responsible party
- Principal investigator, Daniel Franzen, University of Zurich
- Investigators
- Daniel Franzen, MD, Principal investigator, University of Zurich
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02490059
- Sponsor's protocol ID
- 2000-C094
- Acronym
- Babyscope
- Status last verified
- Jul 2015
- First submitted
- 25 Jun 2015
- Last updated
- 3 Jul 2015
- Results posted
- No
- Data monitoring committee
- No
Publications
Franzen D, Diacon AH, Freitag L, Schubert PT, Wright CA, Schuurmans MM. Ultrathin bronchoscopy for solitary pulmonary lesions in a region endemic for tuberculosis: a randomised pilot trial. BMC Pulm Med. 2016 Apr 27;16(1):62. doi: 10.1186/s12890-016-0225-1.
PubMed 27117455
Study at a glance
From the registry record, last updated by the sponsor on 3 Jul 2015. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Ultrathin Bronchoscopy for Solitary Pulmonary Nodules: A Randomised Pilot Trial
- ClinicalTrials.gov ID
- NCT02490059
- Acronym / sponsor ID
- Babyscope / 2000-C094
- Conditions
- Lung Cancer
- Phase
- Phase 4
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 40 participants (actual)
- Lead sponsor
- University of ZurichUniversity, hospital or other
- Collaborators
- University of Stellenbosch
- Study start
- Nov 2000
- Primary completion
- Nov 2003 (actual)
- Study completion
- May 2015 (actual)
- First posted
- 3 Jul 2015 (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 evaluation of solitary pulmonary nodules (SPN) requires a balance between procedure-related morbidity and diagnostic yield, particularly in areas where tuberculosis is endemic. Data on ultrathin bronchoscopy (UB) for this purpose is limited. In this prospective randomised trial we compared diagnostic yield and adverse events of UB with standard-size bronchoscopy (SB) in a cohort of patients with SPN located beyond the visible range of SB.
Detailed description
The present prospective single-centre randomised pilot study was performed at Tygerberg Academic Hospital, a tertiary university hospital in Cape Town, South Africa, with a referral drainage area of 1.5 million people and tuberculosis notification rate of up to 1'000/100'000 persons per year when the study was performed. Between November 2000 and November 2003 all patients referred to the lung unit with single pulmonary lesion ≤ 6 cm in diameter on chest computed tomography (CT) were included. SPN was defined as a single and circumscribed pulmonary lesion with a diameter ≤ 6.0 cm, surrounded by aerated lung tissue, and without evidence of atelectasis, pneumonitis, or cavity on CT scan. Location and maximal diameter of all SPNs were recorded from the chest CT prior to enrolment of patients. Inclusion criteria were a previous cytological and microbiological negative sputum examination, absence of enlarged mediastinal or hilar lymph nodes on chest CT scan, and informed consent obtained before start of the procedure. Exclusion criteria were SPN with lesion size unchanged over two years, inability to undergo bronchoscopy or thoracotomy, and pregnancy. Participants with consent for participation in the study in whom the lesion was found to be visible on SB were then not randomised and not considered part of the study population. Written informed consent was obtained from all patients before inclusion in the study.
Study design
- Primary purpose
- Diagnosis
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Standard size bronchoscopy | Active comparator | Other: bronchoscopyll procedures were started using SB with an external diameter of 5.0-6.0 mm with a biopsy channel of 2.2-2.8 mm (models Olympus BF-30 and BF-1T160, Olympus, Tokyo, Japan). If during SB the lesion was endoscopically visible the bronchoscopy was continued as standard diagnostic procedure and the patients were excluded from the analysis. Only if no tumour was visible during complete inspection of the bronchial tree using the SB, a participant was randomised by opening a numbered sealed opaque envelope. Randomisation was performed using sequentially numbered (1-40) sealed opaque envelopes (block randomisation: block size 4). For subjects allocated to the SB group, the examination was immediately continued with the same SB bronchoscope. |
| Ultrahin bronchoscopy | Experimental | Other: bronchoscopyFor subjects randomised to UB, the instrument was changed immediately to an Olympus BF-XP 40 ultrathin bronchoscope with an outer diameter of 2.8 mm and a working channel 1.2 mm during the same bronchoscopy session. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (2 listed)
- Pulmonary nodule on a recent CT
- non-visible on standard-size bronchoscopy
Key exclusion criteria (1 listed)
- missing informed consent
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| bronchoscopyBronchoscopy for diagnosis of pulmonary nodules | Other | Standard size bronchoscopy, Ultrahin bronchoscopy |
Primary outcome
Sensitivity
Time frame: 2 years
Sensitivity of the diagnosis of malignancy. Biopsy specimens obtained by bronchoscopy were compared with the diagnosis made by surgical resection or CT-guided trans-thoracic needle aspiration if applicable. Efforts were made to obtain confirmatory histological diagnosis for all patients. Alternatively, when invasive diagnosis was not feasible or appropriate (as assessed by a multidisciplinary tumour board) radiological follow-up examinations were performed over two years.
1 secondary outcome
Diagnostic yield
Time frame: 2 years
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 3 Jul 2015.
- Derived from this study: PubMed 27117455Franzen D, Diacon AH, Freitag L, Schubert PT, Wright CA, Schuurmans MM. Ultrathin bronchoscopy for solitary pulmonary lesions in a region endemic for tuberculosis: a randomised pilot trial. BMC Pulm Med. 2016 Apr 27;16(1):62. doi: 10.1186/s12890-016-0225-1.
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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.
Daniel Franzen, MD principal investigator
University of Zurich
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 4 study testing bronchoscopy in people with Lung Cancer, run by University of Zurich at 1 site in Switzerland.
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 1 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 3 Jul 2015. 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 Switzerland. 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.
What does this phase mean?
Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
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?
Sensitivity (time frame: 2 years). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT02490059, which also lists 1 linked publication.
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 3 Jul 2015.