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NCT06807359RecruitingPhase 1/2

Photodynamic Therapy of Primary Localized Prostate Cancer With the SpectraCure P18 System

Open-label Clinical Phase 1/2 Study to Assess the Safety and Efficacy of the SpectraCure P18 System and Verteporfin for Injection for the Treatment of Primary Localized Prostate Cancer

Source: ClinicalTrials.gov · Last updated 1 May 2026

Brief summary (registry, in English)

The goal of this study is to obtain safety data, establish dose parameters, and effectiveness of treatment for the SpectraCure P18 System with IDOSE®, together with verteporfin for injection (VFI) as photosensitizer, for the treatment of primary localized prostate cancer. The study will be divided into two parts, with Phase I, dose-escalation, to study safety and establish an effective light dose, followed by Phase II, cohort expansion, to evaluate clinical efficacy and confirm safety/tolerability. The subjects will be followed for a period of 18 months to determine the primary outcome. The long-term follow-up is an additional 18 months, i.e. a total of 36 months. Interstitial Photodynamic Therapy (PDT) will be performed during general anesthesia. Optical fibers will be inserted into the prostate with a transperineal approach using transrectal ultrasound guidance. The intent is to deliver an adequate light dose throughout the prostate. Subjects will receive VFI intravenously, approximately 60-90 minutes prior to light delivery.

Status (registry)
Recruiting
Phase (registry)
Phase 1/2
Study type
Interventional
Enrollment
43 (estimated)
First submitted
29 Jan 2025
Start date
6 Jan 2025
Primary completion date
31 Jan 2028
Lead sponsor
SpectraCure AB
NCT number
NCT06807359

What you commit to

  • Study type: Interventional · Phase 1/2
  • Planned participants: 43
  • From 6 Jan 2025 to the primary completion date, 31 Jan 2028
  • 3 sites in 2 countries
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Prior treatment

  • Prior radical surgery for carcinoma of the prostate, prior pelvic radiation, prior TURP, prior cryosurgery of the prostate.
  • Prior treatment with any form of brachytherapy.
  • Previous androgen deprivation therapy (ADT) or chemotherapy for prostate cancer.
  • Prior or current bleeding diathesis.
  • Use of Alpha-reductase inhibitors (ARIs) within 90 days of enrolment.
  • On-going therapy with a photosensitizing agent.
  • Enrolment in another therapeutic clinical study within 3 month prior to enrolment and throughout the study.

Other illness

  • Evidence of locally advanced, regional pelvic lymph node metastasis, or metastatic disease.
  • High volume GG1 disease in the contralateral prostate, outside of the ablation zone. High volume is defined as \>1 core of GG1 with a linear amount of carcinoma \>6mm.
  • 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 including:
    • Porphyria or other diseases exacerbated by light.
    • Known hypersensitivity to verteporfin for injection (VFI) or to any of the excipients.
    • Known allergies to porphyrins.
  • Has known hypersensitivity to pancuronium bromide, atricurium or cisatricurium

Lab values

  • Any serious active or co-morbid medical conditions, laboratory abnormality, psychiatric illness, active or uncontrolled infections, or serious illnesses or medical conditions that would prevent the patient from participating or to be managed according to the protocol (according to investigator's decision).
  • Contraindication for MRI/Gadolinium contrast such as: implants, hip prosthesis, severe renal impairment (glomerular filtration rate \[GFR\] \<30 mL/min/1.73m2), or previous contrast reactions.

Other

  • Any suspicious for, probable, or definite extracapsular extension on pretreatment MRI
  • Contralateral PIRADS 4/5 lesion (even if negative targeted biopsy)
  • Tumors known to be eroding into a major blood vessel in or adjacent to the illumination site.

Who the study is looking for

  • Subjects ≥ 18 years.
  • Histologically confirmed organ-confined adenocarcinoma of the prostate cancer diagnosed within the last 9 months. Including subjects on active surveillance with evidence of disease progression and a prostate biopsy not older than 9 months.
    • This prostate biopsy should be targeted and systematic (transperineal or transrectal are both acceptable) and include both systematic sampling with a minimum of 8 cores (4 right, 4 left) as well as MRI fusion targeted cores. The minimum number of targeted cores is two (2) but more may be included at the discretion of the surgeon.
  • Gleason Score 7 (3+4 or 4+3).
  • PSA ≤ 15 ng/mL.
  • Lesion volume on mpMRI \< 1.5 cm3.
  • Adequate stage imaging such as pelvic CT/MRI/PET scan within the last 6 months confirming localized cancer.
    • \- Bone scan is optional if PSA \< 10 ng/mL.
  • Treatment target volume \<50 cm3 defined by TRUS or MRI.
  • Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.
  • Expected survival ≥ 36 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.

Age in the registry: 18 years to - · Sex: Male · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (3)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
Klinik für Urologie, Universitätsklinikum Köln
Coordinator of this site? Confirm its status
CologneGermanyRecruiting
Klinik und Poliklinik für Urologie, Universitätsmedizin Rostock
Coordinator of this site? Confirm its status
RostockGermanyRecruiting
Memorial Sloan-Kettering Cancer Center
Coordinator of this site? Confirm its status
New YorkUnited StatesRecruiting

This page is information, not medical advice. Discuss any trial with your doctor.