- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01946490
Time Trends in Waiting Times of NSCLC Patients.
Time Trends in Diagnostic Delay and Waiting Times of Four Patient Cohorts, Diagnosed With Non-small Cell Lung Cancer, Treated With High Dose Radiotherapy.
A large group of non-small cell lung cancer patients is treated with radiotherapy. Delivery of very high radiation doses is needed to obtain local control, but due to the large tumor and nodal volume this is often impossible without causing unrepairable damage to the normal tissue of the mediastinum, spinal cord, esophagus and lung.
Although every tumor is different with respect to the speed with which it grows and spreads, it is obvious that time plays an important role in cancer therapy. Recently it was reported that disease progression or increase of tumor volume occurred during the time interval between diagnosis and treatment.(1, 2) This could lead to a less optimal radiation treatment and consequently have an impact on overall survival. Moreover, the increasing number of diagnostic procedures, aimed at obtaining more accurate information about the tumor extension and biology, as well as the use of more sophisticated but labor intense radiation techniques could prolong the time interval between clinical symptoms and the start of the treatment. However, the influence of new diagnostic procedures or the applied radiotherapy techniques on waiting times is not yet known. The investigators therefore want to investigate 1) time trends in the waiting time for NSCLC patients, 2) the correlation between waiting times and the use of more advanced diagnostic or therapeutic procedures, and 3) the correlation between waiting times and overall survival.
The hypotheses of the study:
- The diagnostic delay for NSCLC patients has increased during the last 12 years.
- The preparation time for radiotherapy of NSCLC patients has increased during the last 12 years.
- Prolonged waiting times are associated with worse overall survival outcome.
Study Overview
Status
Conditions
Detailed Description
A large group of non-small cell lung cancer patients is treated with radiotherapy. Delivery of very high radiation doses is needed to obtain local control, but due to the large tumor and nodal volume this is often impossible without causing unrepairable damage to the normal tissue of the mediastinum, spinal cord, esophagus and lung.
Although every tumor is different with respect to the speed with which it grows and spreads, it is obvious that time plays an important role in cancer therapy. Recently it was reported that disease progression or increase of tumor volume occurred during the time interval between diagnosis and treatment.(1, 2) This could lead to a less optimal radiation treatment and consequently have an impact on overall survival. Moreover, the increasing number of diagnostic procedures, aimed at obtaining more accurate information about the tumor extension and biology, as well as the use of more sophisticated but labor intense radiation techniques could prolong the time interval between clinical symptoms and the start of the treatment. However, the influence of new diagnostic procedures or the applied radiotherapy techniques on waiting times is not yet known. The investigators therefore want to investigate 1) time trends in the waiting time for NSCLC patients, 2) the correlation between waiting times and the use of more advanced diagnostic or therapeutic procedures, and 3) the correlation between waiting times and overall survival.
The hypotheses of the study:
- The diagnostic delay for NSCLC patients has increased during the last 12 years.
- The preparation time for radiotherapy of NSCLC patients has increased during the last 12 years.
- Prolonged waiting times are associated with worse overall survival outcome.
The IKL collected data on waiting times and treatment of NSCLC patients treated in 2001 and 2004. These data will be used for this project. In addition, the MAASTRO lung database contains information of patients treated in 2006 and 2010. Additional information about the diagnostic procedure and radiation treatment preparation will be collected by reviewing the patient charts. For this study a data request has to be submitted to the IKL and access to MAASTRO patient data (charts and EMD) is needed.
The investigators aim to collect the following variables: Date of consultation pulmonologist; Date of multidisciplinary meeting; Date of first consultancy at radiotherapy; Date of start radiotherapy; Information about diagnostic procedure (PET/CT/Pathology/EBUS/EUS); Information about RT procedure (3Dconventional/IMRT); General patient characteristics; Overall survival
Study Type
Contacts and Locations
Study Locations
-
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Limburg
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Maastricht, Limburg, Netherlands, 6229 ET
- Maastro clinic
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
- Child
- Adult
- Older Adult
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Description
Inclusion Criteria:
Patients with NSCLC treated in the Dutch province Limburg from 2001 onwards.
Study Plan
How is the study designed?
Design Details
Cohorts and Interventions
Group / Cohort |
---|
Radiotherapy in 2001
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Radiotherapy in 2004
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Radiotherapy in 2006
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Radiotherapy in 2010
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Analysis of waiting times
Time Frame: From intake to start of radiotherapy
|
Retrospective analysis of the time passed between consultation and start of radiotherapy (an expected average time frame of two weeks).
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From intake to start of radiotherapy
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Correlation of waiting times and treatment outcome
Time Frame: From treatment until date of censoring (12 years)
|
Is there a correlation between the time passed between consultation and start of radiotherapy and treatment outcome?
(Time frame: 12 years)
|
From treatment until date of censoring (12 years)
|
Collaborators and Investigators
Sponsor
Collaborators
Study record dates
Study Major Dates
Study Start
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- Waiting Times
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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