- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00984243
Photodynamic Therapy (PDT) in Lung Cancer (PDT)
An Evaluation of the Effectiveness of Photodynamic Therapy (PDT) Compared to Surgical Resection in Early Stage Roentgenographically Occult Lung Cancer.
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Lung cancer is currently the leading cause of death in both women and men in the United States and continues to be a major problem in several other countries in the world. Detection, localization, and surgical treatment at an early stage, provides the best opportunity for long-term survival for patients with non-sma11 cell lung cancer at this time. Studies examining the utility of screening patients at high risk for lung cancer with sputum cytology and chest roentgenograms showed that, despite a higher frequency of detecting and resecting early cancers in the screened group, there was no difference between the screened group and the control group in overall cancer mortality.
The purpose of this study is to determine if photodynamic therapy (PDT) is an alternative to surgical resection in patients with early stage) roentgenographically occult squamous cell carcinoma of the lung who are candidates for surgery. If PDT is successful, it would remove the indication for surgery and eliminate the need for an operation. The specific goals are to evaluate the impact of PDT on these patients by determining the percentage of patients who are spared surgery as wel1 as the following: morbidity, overall mortality, lung cancer mortality, the rate of subsequent lung cancer, the relative cost of PDT and surgery, the change in pulmonary function over time, the effect on quality of life, and the patient preferences for PDT and surgery.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
Minnesota
-
Rochester, Minnesota, United States, 55905
- Mayo Clinic
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Patient less than 75 years of age.
- Squamous cell lung cancer proven by biopsy or repeated Brushings obtained from the same location at separate bronchoscopies.
- Occult lung cancer by chest roentgenogram and CT scan If CT scan is abnormal, mediastinoscopy is negative.
- Cancer is bronchoscopically superficial as defined in section IV, E.
- Estimated size less than 1 cm diameter on the surface of the bronchus with the surface area of 0.7 to 1.0 cm2.
- Location in the trachea, main stem bronChi, lobar bronchi, segmental bronchi, or subsegmental bronchi.
- Medical condition permits surgery: cardiovascular status is satisfactory for operation and postoperative FEVl is predicted to be greater than 0.75 liter.
- Patients will complete quality of life questionnaire and a spirometry which will include forced expiratory volume in 1 second (FEVl) and forced vital capacity (FVC).
- On bronchoscopic biopsy, the carcinoma is entirely in situ or shows no more than 2 mm of microinvasion.
- The characteristics of the mucosa. may include paleness, opacity, loss of luster, roughness, micro-granularity.
- The mucosal folds may demonstrate lack of clarity. thickening, disappearance.
- There may be small nodular protrusion of tumor into the lumen
- The peripheral extent of tumor invasion can be confirmed endoscopically.
Exclusion Criteria:
- A medical disease which excludes surgery as an option
- A postoperative FEVl predicted to be less than 0.75 liter
- A previous carcinoma or other malignancy not curatively treated
- The presence of simultaneous lung cancers
- CT scan of the chest shows thickening of the bronchial wall or extension beyond the bronchial wall in the area of the cancer
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Prevention
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Photodynamic Therapy
PHOTODYNAMIC THERAPY (PDT)
|
Photodynamic Procedure: Photofrin II will be injected at a dosage of 2 mm/Kg intravenously. Laser treatment will take place 40-50 hours later. An argon-dye or an excimer-dye laser tuned to 620-630 nm will be used. It is anticipated that a microlens fiber will be used in almost all cases, but a cylinder-diffusing fiber can be used to treat lesions in segmental bronchi if needed. Argon-dye laser: Power settings 200 milliwatt (mW) microlens and 400 mW for cylinder Excimer laser: 4 milliJoules (mJoules)/pulse at 30 hertz for the microlens Energy density: Argon-dye laser: 200-300 Joules/cm^2 Excimer-dye laser: 100-200 Joules/cm^2 |
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Evaluate the impact of PDT on these patients by determining the percentage of patients who are spared surgery.
Time Frame: 3 years
|
3 years
|
Secondary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Morbidity,overall mortality and lung cancer mortality.
Time Frame: 3 years
|
3 years
|
Rate of subsequent lung cancer.
Time Frame: 3 years
|
3 years
|
Relative cost of PDT and surgery.
Time Frame: 3 years
|
3 years
|
Change in pulmonary function over time.
Time Frame: 3 years
|
3 years
|
Effect on quality of life.
Time Frame: 3 years
|
3 years
|
Patient preferences for PDT and surgery.
Time Frame: 3 years
|
3 years
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Eric S. Edell, M.D., Mayo Clinic
Publications and helpful links
Helpful Links
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
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
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- 281-92
- PulmMed 649
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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