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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.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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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

Other trials in Switzerland

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 groups in NCT02490059
Study groupRoleWhat they receive
Standard size bronchoscopyActive comparatorll 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 bronchoscopyExperimentalFor 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.

  1. 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)
  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.

  1. First posted3 Jul 2015 (estimated)
  2. Study startNov 2000
  3. Primary completionNov 2003
  4. Study completionMay 2015

Resources

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)
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

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.

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