AzTrials
AzTrials

Pulmonary CancerNCT06102369

The Role of Narrow Band Imaging (NBI) Bronchoscopy in Detecting Bronchial Squamous Dysplasia in Lung Cancer

An observational study of Pulmonary Cancer and Lung Cancer, run by Universitas Indonesia at 1 site in Indonesia.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
Search all trials

Trial summary

Investigators conducted an observational diagnostic study. The primary objective of the study is to develop a scoring system for detecting pre-lung cancer abnormalities using narrow-band imaging (NBI) bronchoscopy. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Pulmonary Cancer, Lung Cancer
How many people
110 participants
Where
1 siteIndonesia
Study dates
27 Mar 2023to 30 Oct 2024
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 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: 1. Population: The target population consists of all lung tumor patients. The accessible population consisted of lung tumor patients who underwent bronchoscopy procedures at Persahabatan Hospital from March to December 2023. 2. The study participants: The study participants comprised individuals from the accessible population who met the research subject acceptance criteria and provided informed consent. The consecutive sampling method was employed. 3. The study participants size calculation: The study participants size was calculated using the diagnostic research sample size formula. The minimum study participants size required was 110 subjects.

Who may be able to join

  • Patients aged >18 years undergoing bronchoscopy for diagnostic evaluation of lung tumors.
  • Recent radiological examinations, including both chest X-rays and chest CT scans, within the last month, revealed central lesions.

Who cannot join

  • Refusal to provide informed consent
  • Contraindications to bronchoscopy.

Trial locations and contacts

1 site in 1 country.

Indonesia1 site
  • Faculty of Medicine

    Jakarta Pusat, DKI Jakarta, 10430

Other trials in Indonesia

About this study

Investigators conducted an observational diagnostic study. The primary objective of the study is to develop a scoring system for detecting pre-lung cancer abnormalities using narrow-band imaging (NBI) bronchoscopy. From the collected data, investigators will perform a multivariate analysis based on the odds ratio (OR) using IBM SPSS software. The result of the data analysis will be transformed into a scoring system aimed to facilitate the early diagnosis of lung cancer, specifically at the pre-cancer stage. This scoring system will also help clinicians detect pre-cancerous abnormalities early and improve patient recovery prospects.

Several research questions to be addressed are as follows:

Read more
  1. What are the NBI image criteria for detecting pre-cancerous lesions in lung tumor patients?
  2. What is the diagnostic profile of NBI bronchoscopy in detecting pre-cancerous lesions in lung tumor patients?
  3. Can adding the NBI bronchoscopy procedure to the standard bronchoscopy procedure enhance the diagnostic accuracy in detecting pre-cancerous lesions in lung tumor patients?

The study population consists of lung tumor patients who have undergone bronchoscopy procedures and meet the protocol acceptance criteria. Bronchial biopsies will be collected from these patients, followed by histopathological examinations.

Read the detailed description
  1. Study Design: This is an observational diagnostic study. The research was conducted at the Central Surgical Installation (CSI) of Persahabatan Hospital, where bronchoscopy procedures, bronchial biopsy collection, and specimen handling took place. The histopathological examinations were carried out in the Department of Anatomical Pathology, Faculty of Medicine, Universitas Indonesia, Cipto Mangunkusumo National General Hospital. The patient recruitment time ranges from March to December 2023.
  2. Population: The target population consists of all lung tumor patients. The accessible population consisted of lung tumor patients who underwent bronchoscopy procedures at Persahabatan Hospital from March to December 2023.
  3. The study participants: The study participants comprised individuals from the accessible population who met the research subject acceptance criteria and provided informed consent. The consecutive sampling method was employed.
  4. Study participants size calculation: The study participants size was calculated using the diagnostic research sample size formula. The minimum study participants size required was 110 subjects.
  5. Inclusion criteria:
  • Patient aged > 18 years undergoing bronchoscopy for diagnostic evaluation of lung tumors
  • Recent radiological examinations, including both chest X-ray and chest CT scans, within the last month, revealed a central lesion of lung cancer
  1. Exclusion criteria:
  • Refusal to provide informed consent
  • Contraindications to bronchoscopy
  1. Study participants selection: Screening was conducted on all lung tumor patients scheduled for bronchoscopy procedures, and the study participants selection was carried out in accordance with the inclusion and exclusion criteria
  2. Sampling Technique: The preparation and execution of bronchoscopy and bronchial biopsy were performed in accordance with the standard operating procedures (SOP) at Persahabatan Hospital. The bronchoscopy and bronchial biopsy procedures were conducted by a single operator, the principal investigator. The bronchoscopy procedure uses general anesthesia. The flexible fiberoptic bronchoscopy was performed using an Olympus EVIS EXERA III with a Xenon light source, model CLV-190, and BF-1TQ170 series scope. The Boston Scientific Radial JawTM 4 disposable lung biopsy forceps were employed. Bronchoscopy was initially conducted under the white light, followed by narrow-spectrum light. The NBI assessment was performed in two areas, consisting of area 1 (trachea and carina) and area 2 (right main bronchus, right upper lobe orifice, truncus intermedius, right lower lobe orifice, left main bronchus, left upper lobe orifice, and left lower lobe orifice). Biopsies were taken from both areas based on the NBI bronchoscopy findings. Tissue from each area was placed in a separate 10% formalin solution. Tissue processing involved paraffin embedding and Hematoxylin-Eosin staining. Tissue processing was performed using a Tissue Processor machine. Following tissue processing, paraffin blocks were created and sectioned. Hematoxylin-Eosin staining was then performed. Diagnosis of squamous bronchial dysplasia (pre-cancer lesion) was made by a specialist in Anatomical Pathology.
  3. Data analysis: The research data were recorded on research forms and subsequently entered into SPSS 26 software. the bivariate analysis was conducted between each vascular pattern based on NBI bronchoscopy and the histopathological result. The descriptive data will be presented by the text and tables consist of the basic characteristics of the study participants and research variables. The multivariate analysis was performed on all vascular patterns based on NBI bronchoscopy and histopathological results. Furthermore, a pre-cancer prediction score was generated. An analysis of the AUC (area under the curve) of the squamous dysplasia prediction model form NBI bronchoscopy findings was conducted with a significance level set at p < 0.0.5
Keywords
bronchoscopy, narrow-band imaging (NBI), lung cancer, bronchial squamous dysplasia
Medical subject headings
Lung Neoplasms

What is being measured

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

  1. To determine the sensitivity, specificity, positive predictive value, and negative predictive value of the bronchoscopic narrow-band imaging (NBI) in detecting bronchial squamous dysplasia

    To address this outome, researchers will utilize parameters derived form NBI bronchoscopy images, consist of normal vascularity, increased vascular frequency, dotted, spiral, tortuous and abrupt-ending blood vessels (on a nominal scale). These parameters will be employed in conjunction with histopathological images (dysplasia or non dysplasia) for comparative analysis

    Measured: Based on the research timeline, all statistical analysis and data processing will be conducted from January to February 2024

Secondary outcomes (2)
  1. To determine the proportion of bronchial squamous dysplasia in lung cancer patients

    This refers to the ratio of the number of cases with squamous bronchial dysplasia to the total number of lung cancer patients in the study. The proportion measures how much squamous bronchial dysplasia is found in lung cancer patients within the study population (descriptive analysis)

    Measured: Based on the research timeline, all statistical analysis and data processing will be conducted from January to February 2024

  2. To establish the correlation between the NBI bronchoscopy findings and bronchial squamous dysplasia in lung cancer patients

    Researchers will utilize parameters derived form NBI bronchoscopy images, consist of normal vascularity, increased vascular frequency, dotted, spiral, tortuous and abrupt-ending blood vessels (on a nominal scale). These parameters will be employed in conjunction with histopathological images (dysplasia or non dysplasia). Additionally, bivariate analysis followed by multivariate logistic regression analysis is conducted between the NBI bronchoscopy image and squamous bronchial dysplasia.

    Measured: Based on the research timeline, all statistical analysis and data processing will be conducted from January to February 2024

Timeline

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

  1. First posted26 Oct 2023
  2. Study start27 Mar 2023
  3. Primary completion31 Mar 2024 (estimated)
  4. Study completion30 Oct 2024 (estimated)

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
Case only
Time perspective
Prospective
Enrolment
110 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06102369
Sponsor's protocol ID
ND-552/UN2.RST/PPM.00.00/2023
Status last verified
Mar 2024
First submitted
22 Oct 2023
Last updated
6 Mar 2024
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No: Researchers might be engaging in consultations with ethics boards, legal experts, and stakeholders to develop a robust and ethical sharing plan that adheres to the highest standards of privacy and security.

Questions about this trial

What is this clinical trial studying?

An observational study of Pulmonary Cancer and Lung Cancer, run by Universitas Indonesia at 1 site in Indonesia.

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 2 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: status not confirmed, as of the sponsor's last update on 6 Mar 2024. 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 Indonesia. 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?

Results are not available in the source record.

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?

To determine the sensitivity, specificity, positive predictive value, and negative predictive value of the bronchoscopic narrow-band imaging (NBI) in detecting bronchial squamous dysplasia (time frame: Based on the research timeline, all statistical analysis and data processing will be conducted from January to February 2024). 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 6 Mar 2024.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in