NCT03067051 · SpectraCure AB
Clinical Study to Assess the Safety and Efficacy of the SpectraCure P18 System
What this study is about
The rationale for the study is to obtain safety and effectiveness data as well as to establish dose parameters for the SpectraCure P18 System with IDOSE®, with verteporfin for injection (VFI) as photosensitizer for the treatment of recurrent prostate cancer.
View original scientific description
The rationale for the study is to obtain safety and efficacy data as well as to establish dose parameters for the SpectraCure P18 System with IDOSE®, with verteporfin for injection (VFI) as photosensitizer for the treatment of recurrent prostate cancer.
Interventions
DRUG
Verteporfin
In the last decade a clinical interest of developing new methods for minimally invasive treatments of organ-confined prostatic malignancies has been pursued. In this study the drug verteporfin for injection (VFI) is to be used with the SpectraCure P18 System (Interstitial multiple diode lasers and IDOSE® Software).
DEVICE
SpectraCure P18 System
Interstitial Photodynamic therapy is provided with the the SpectraCure P18 system
Primary outcome measures
Number of participants with treatment related adverse events as assesses by CTCAE v4.0 related to protocol therapy.
Time frame: Within 4 weeks of treatment in each cohort.
Dose limiting toxicities are defined as grade 3 non-hematologic or grade 4 hematologic toxicities that are possibly, probably or definitely related to PDT.
Percentage of subjects with negative biopsies.
Time frame: 6 months following PDT.
Histopathologically tumor-free.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Males \> 18 years who have gone through external or internal, high dose rate (brachy) radiation therapy for localized prostate cancer with histopathologically verified local recurrence.
- Prostate volume less than 50 cm3 defined by transrectal ultrasound
- Subject not eligible for surgery or curative radiotherapy
- Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1
- Expected survival ≥ 8 months
- Sufficient bone marrow reserve as indicated by; granulocyte count ≥ 1500/mm3, platelet count ≥ 100,000/mm3
- Adequate renal function as defined by creatinine ≤ 1.5 mg /dl
- Adequate hepatic function, based on a total bilirubin ≤ 1.5 mg/dl, serum glutamate-oxaloacetate transaminase (SGOT) ≤ 3 times the upper limit of normal, and alanine transaminase (ALT) ≤ 3 times the upper limit of normal
- Signed Informed Consent Phase 1
Exclusion criteria
- Patients with locally advanced (AJCC 7th edition T3/T4) or metastatic disease
- Patients who have been treated with seed implantation brachytherapy
- Gleason score ≥ 8 at initial diagnosis
- Less than 1 week since surgery (excluding minimal procedures, e.g. vascular access device insertion)
- Concomitant infection
- Subjects with other severe concurrent disease that in the judgement of the investigator would make the subject inappropriate for entry into this study
- Mental incapacity or psychiatric illness that would interfere with the subject's ability to understand and give informed consent or to complete follow-up visits according to the judgement of the investigator
- Contraindication for photosensitizer
- Porphyria or other diseases exacerbated by light
- Known hypersensitivity to verteporfin for injection (VFI) or to any of the excipients
- Known allergies to porphyrins
- Tumours known to be eroding into a major blood vessel in or adjacent to the illumination site
- On-going therapy with a photosensitizing agent
- Enrolment in another therapeutic clinical study within 3 months prior to randomization and throughout the study.
- Subjects with a history of CTCAE v4 grade 3 or greater or persistent (\>1 separate episode or symptoms lasting more than 3 months after initiation of medical intervention) grade 2 proctitis attributed to radiation. Phase 2 Inclusion Criteria:
- Subjects \> 18 years who have gone through external or internal, high dose-rate (brachy) radiation therapy for localized prostate cancer with histopathologically verified local recurrence.
- Treatment target volume less than 50 cm3.
- Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.
- Expected survival ≥ 12 months.
- Sufficient bone marrow reserve as indicated by; granulocyte count ≥ 1500/mm3, platelet count ≥ 100,000/mm3.
- Adequate renal function as defined by creatinine ≤ 1.5 mg /dl.
- Adequate hepatic function, based on a total bilirubin ≤ 1.5 mg/dl, serum glutamate- oxaloacetate transaminase (SGOT) ≤ 3 times the upper limit of normal, and alanine transaminase (ALT) ≤ 3 times the upper limit of normal.
- Signed Informed Consent. Phase 2 Exclusion Criteria:
- Subjects with locally advanced (AJCC 7th edition T3/T4), regional pelvic lymph node metastasis, or metastatic disease defined by PSMA PET.
- Subjects who have been treated with seed implantation brachytherapy.
- Less than 1 week since surgery (excluding minimal procedures, e.g. vascular access device insertion).
- Concomitant infection.
- Subjects with other severe concurrent disease that in the judgement of the investigator would make the subject inappropriate for entry into this study.
- Mental incapacity or psychiatric illness that would interfere with the subject's ability to understand and give informed consent or to complete follow-up visits according to the judgement of the investigator.
- Contraindication for photosensitizer.
- Porphyria or other diseases exacerbated by light.
- Known hypersensitivity to verteporfin for injection (VFI) or to any of the excipients.
- Known allergies to porphyrins.
- Tumours known to be eroding into a major blood vessel in or adjacent to the illumination site.
- On-going therapy with a photosensitizing agent.
- Enrolment in another therapeutic clinical study within 3 months prior to randomization and throughout the study.
- Subjects with a history of CTCAE v4 grade 3 or greater or persistent (\>1 separate episode or symptoms lasting more than 3 months after initiation of medical intervention) grade 2 proctitis attributed to radiation.
- Contraindication for MRI/Gadolinium contrast such as: implants, severe renal impairment (glomerular filtration rate \[GFR\] \<30 mL/min/1.73m2, or previous contrast reactions.
- On-going or planned hormone therapy.
Where
- New York, New York
Related conditions & keywords
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced May 1, 2026 · Source of record for eligibility and locations