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Non Small Cell Lung CancerNUTSNCT02730897

Multicentric Analysis of Predictors of N1 Upstaging After Resection of cStage-I NSCLC

An observational study of Non Small Cell Lung Cancer, run by University Hospital, Gasthuisberg.

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

Five papers showed a lower N1 nodal upstaging with video-assisted thoracic surgery (VATS) compared to open surgery in patients with cStage-I NSCLC . This finding questions the oncologic quality of minimal invasive lung cancer surgery, especially the quality of hilar and intrapulmonary lymh node dissection. Read more about this study

Who is it for?
Any age
Conditions the study is for
Non Small Cell Lung Cancer
What is being tested?
Central/Peripheral
Type of treatment
Surgery or procedure
How many people
956 participants
Where
No sites listed yet
Study dates
Jan 2016to Jan 2017
How long will I take part?
1 Year
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 Any age
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Study population: Per centre, a list of consecutive patients operated for cStage-I NSCLC in 2014 is selected. cStage-I is decided based on all information before resection is started in accordance to the 7th edition of TNM

Who may be able to join

  • Patients operated in 2014
  • NSCLC on final pathology
  • cStage-I (cT1-2a cN0 cM0 ) before start of incision for anatomical resection.
  • This includes: open/VATS/ Robotic Assisted Thoracoscopic Surgery (RATS)
  • This includes: lobectomy, bilobectomy, sleeve or pneumonectomy (not wedge)

Who cannot join

  • Higher clinical stage than cStage-I
  • Former therapy for lung cancer (chemotherapy, radiotherapy, surgery)
  • Metastatic disease
  • Induction chemo- or radiotherapy
  • Non-anatomical resections (wedge)
  • Previous lymph node disease
  • No positron emission tomography (PET) or Missing PET report

About this study

Five papers showed a lower N1 nodal upstaging with video-assisted thoracic surgery (VATS) compared to open surgery in patients with cStage-I NSCLC . This finding questions the oncologic quality of minimal invasive lung cancer surgery, especially the quality of hilar and intrapulmonary lymh node dissection. However, these retrospective studies did not include analysis of central tumor location, although central tumors have a reported higher chance of N1 upstaging . Possibly, this creates a selection bias as surgeons might select central lesions deliberately for open surgery in line with initial VATS feasibility reports

Read the detailed description

After optimal preoperative staging, 10 to 25% of patients with clinical stage I (cStage-I) non-small cell lung cancer (NSCLC) are found to have unforeseen positive lymph nodes during resection.

Central tumors, even if they are smaller than 3cm (cT1), have a higher incidence of both intrapulmonary or hilar (N1) or ipsilateral mediastinal (N2) lymph node involvement in comparison to peripheral lesions.

In a cohort of patients that underwent identical preoperative mediastinal evaluation and postoperative pathologic tissue examination of equal quality, nodal upstaging can be used as a quality indicator of oncologic thoracic surgery. Or, it can be used as an instrument to compare different techniques, such as thoracoscopic (VATS) versus open lung resections for lung cancer.

Five papers showed a lower N1 nodal upstaging with video-assisted thoracic surgery (VATS) compared to open surgery. These retrospective studies did not include tumor location.

The investigators hypothesize that this creates a bias as surgeons might have chosen an open approach when the tumor was centrally located. This is in line with initial feasibility reports and guidelines that excluded patients with central lesions. This results in a higher prevalence of positive N1 nodes in patients operated with the open approach.

Our single centre analysis showed a one in three chance of nodal upstaging in central located cStage-I tumors , multivariate analysis showed central location to be the only significant predictor for upstaging, and not the surgical technique.

The aim of this multicentric study is to investigate risk factors for nodal upstaging, including tumor location, in patients with cStage-I NSCLC and validate previous findings.

Being tested
Central/Peripheral
Keywords
Surgery, Thoracotomy, VATS
Medical subject headings
Carcinoma, Non-Small-Cell Lung

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Central/PeripheralProcedure or surgery

    Central versus peripheral location of the primary tumor

Study groups in NCT02730897
Study groupRoleWhat they receive
VATSPatients operated by means of minimal invasive technique (VATS or roboticVATS)
Receives: Procedure: Central/Peripheral
OpenPatients operated by means of open thoracotomy
Receives: Procedure: Central/Peripheral

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Incidence of nodal (N1 and N2) upstaging

    Incidence of nodal (N1 and N2) upstaging stratified by 'central' versus 'peripheral' tumor location

    Measured: immediate postoperative

Secondary outcomes (1)
  1. Overall Survival

    To compare survival after resection by open technique or VATS, stratified for the above predictors

    Measured: 1 yr postoperative

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted7 Apr 2016 (estimated)
  2. Study startJan 2016
  3. Primary completionOct 2016
  4. Study completionJan 2017

Resources

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
Cohort
Time perspective
Other
Enrolment
956 participants (actual)
Target duration
1 Year
IDs, dates and publications
ClinicalTrials.gov ID
NCT02730897
Sponsor's protocol ID
NUTS
Acronym
NUTS
Status last verified
Sep 2019
First submitted
21 Mar 2016
Last updated
25 Sep 2019
Results posted
No
Data monitoring committee
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

An observational study of Non Small Cell Lung Cancer, run by University Hospital, Gasthuisberg.

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 5 inclusion and 7 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 25 Sep 2019. Status can change between updates, so confirm with the study contact before making plans.

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?

Incidence of nodal (N1 and N2) upstaging (time frame: immediate postoperative). 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 25 Sep 2019.

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