Endobronchial Ultrasound Guided Interstitial Photodynamic Therapy in Treating Patients with Locally Advanced Lung Cancer or Advanced Cancer Obstructing the Airway

Inclusion Criteria

• Age >= 18 years of age.
• Eligibility checklist before registration requires review of case by study surgeon or interventional pulmonologists to approve anatomic feasibility of an airway intervention.
• For patients in Cohort B only. Patients are amenable to receive a palliative radiotherapy of 8 gray (Gy) x 1 48 +/- 4 hour (h) prior to the I-PDT, as determined by the radiation oncologist.
• Patients with an established pathologic diagnosis of small cell and/or non-small cell lung cancer or other malignancies causing airway obstruction > 25% requiring bronchoscopic intervention. Or inoperable malignancies not candidates for curative radiotherapy within the airway.
• Have an Eastern Cooperative Oncology Group (ECOG) performance status of =< 3.
• Platelets >= 100,000 cells/mm^3 (International System of Units [SI] units 100 x 10^9/L).
• Participants of child-bearing potential must agree to use adequate contraceptive methods (e.g., hormonal or barrier method of birth control; abstinence) prior to study entry. Should a woman become pregnant or suspect she is pregnant while she or her partner is participating in this study, she should inform her treating physician immediately.
• Participant must understand the investigational nature of this study and sign an Independent Ethics Committee/Institutional Review Board approved written informed consent form prior to receiving any study related procedure.

Exclusion Criteria

• Participants who have had curative radiotherapy to the target tumor within 4 weeks prior to the scheduled I-PDT and/or PDT.
• Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements.
• Pregnant or nursing female participants.
• Co-existing ophthalmic disease likely to require slit-lamp examination within 14 days following I-PDT and/or PDT treatment.
• Known hypersensitivity/allergy to porphyrin.
• Patients who are not cleared by the anesthesiologist to undergo an advanced bronchoscopy procedure under general anesthesia.
• Patients with target tumor invading into the lumen of the esophagus, confirmed by esophago-gastro-duodenoscopy (EGD) with endoscopic ultrasound.
• Patients diagnosed with porphyria.
• Unwilling or unable to follow protocol requirements.
• Any condition which in the investigator’s opinion deems the participant an unsuitable candidate to receive I-PDT or PDT.