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.
2 other identifiers
interventional
35
1 country
1
Brief Summary
This study is being done to determine whether a substance called hematoporphyrin can be used to treat tumors in various locations in the body when used in association with a laser. Hematoporphyrin is a substance that is taken up by cancerous cells. When these cells are exposed to the energy emitted by a laser source, chemical reactions occur in the cell and cause the cells to die. It is hoped that this treatment method may be able to selectively destroy malignant cells without damaging surrounding healthy tissue.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable lung-cancer
Started Feb 1994
Longer than P75 for not_applicable lung-cancer
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
February 1, 1994
CompletedPrimary Completion
Last participant's last visit for primary outcome
October 1, 2006
CompletedStudy Completion
Last participant's last visit for all outcomes
October 1, 2006
CompletedFirst Submitted
Initial submission to the registry
December 24, 2007
CompletedFirst Posted
Study publicly available on registry
September 25, 2009
CompletedNovember 15, 2012
November 1, 2012
12.7 years
December 24, 2007
November 13, 2012
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Evaluate the impact of PDT on these patients by determining the percentage of patients who are spared surgery.
3 years
Secondary Outcomes (6)
Morbidity,overall mortality and lung cancer mortality.
3 years
Rate of subsequent lung cancer.
3 years
Relative cost of PDT and surgery.
3 years
Change in pulmonary function over time.
3 years
Effect on quality of life.
3 years
- +1 more secondary outcomes
Study Arms (1)
Photodynamic Therapy
EXPERIMENTALPHOTODYNAMIC THERAPY (PDT)
Interventions
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
Eligibility Criteria
You may qualify if:
- 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.
You may not qualify if:
- 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
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Mayo Cliniclead
Study Sites (1)
Mayo Clinic
Rochester, Minnesota, 55905, United States
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Eric S. Edell, M.D.
Mayo Clinic
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NA
- Masking
- NONE
- Purpose
- PREVENTION
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
Study Record Dates
First Submitted
December 24, 2007
First Posted
September 25, 2009
Study Start
February 1, 1994
Primary Completion
October 1, 2006
Study Completion
October 1, 2006
Last Updated
November 15, 2012
Record last verified: 2012-11