Study of Focal Ablation of the Prostate With NanoTherm® Therapy System for Intermediate-Risk Prostate Cancer
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ClinicalTrials.gov Identifier: NCT05010759 |
Recruitment Status :
Recruiting
First Posted : August 18, 2021
Last Update Posted : March 16, 2023
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Condition or disease | Intervention/treatment | Phase |
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Prostate Cancer | Device: NanoTherm Ablation | Not Applicable |
Presently, patients having intermediate-risk prostate carcinoma have to make a very difficult decision regarding treatment, as active surveillance will not immediately alter the current quality of life. However, because there is a risk of progressive disease or due to patient anxiety due to an untreated tumor, many patients opt for active treatment, often using radiation or prostatectomy, and sometimes in combination with androgen deprivation. Unfortunately, radiation, surgery, and androgen deprivation have multiple and potentially profound side effects including sexual, urinary, and bowel complications. As a small fraction of men dies from this disease, the number of men needed to treat to prevent one death is large, resulting in many men with side effects or complications to help prevent the one death. It is for these reasons that there is a major need for focal therapy for this group of patients who most commonly are treated actively with surgery or radiation; such focal therapy could ablate the detected tumor(s) within the prostate, control the disease while avoiding side effects of whole gland therapies and controlling tumor growth within the prostate detected by (multiparameter-) MRI and histopathologically confirmed by biopsy. MagForce NanoTherm® Therapy offers this option by noninvasive ablation of small tumors in a 1-2 ml target volume of the prostate, a treatment that is not possible with any other technology on the market.
This study evaluates the use of NanoTherm ablation as a method of treating these intermediate grade lesions allowing patients to return to active surveillance without definitive treatment such as external beam radiation or prostatectomy.
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 30 participants |
Allocation: | N/A |
Intervention Model: | Single Group Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | Stage 2B of: A Pivotal, Prospective, Three-Stage, Single-Arm Study of Focal Ablation of the Prostate With NanoTherm® Therapy System for a Limited-Volume, Clinically Localized, Intermediate-Risk Prostate Cancer |
Actual Study Start Date : | November 30, 2021 |
Estimated Primary Completion Date : | June 2024 |
Estimated Study Completion Date : | October 2027 |

Arm | Intervention/treatment |
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Experimental: Ablation Arm
Subjects in this arm of the study will have focal ablation of the prostate cancer lesion with the NanoTherm technology. This ablation will be followed-up transperineal prostate biopsy at 4 months after treatment.
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Device: NanoTherm Ablation
Iron nanoparticles are instilled into the prostate cancer lesion and then the particles are heated using a magnetic field and this heating ablates the prostate cancer lesion. |
- Rate of Ablation Success [ Time Frame: 4 months (+/- 1 Month) ]Rate of subjects with a biopsy confirmed ablation of prostate cancer lesion
- Adverse Event Rate [ Time Frame: 4 months (+/- 1 Month) ]Rate of Adverse Events of Special Interest (AESI)

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Ages Eligible for Study: | 40 Years to 85 Years (Adult, Older Adult) |
Sexes Eligible for Study: | Male |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Age 40 to 85
- Male
- Prostate adenocarcinoma on biopsy
- Clinical stage T1c/T2a/T2b, N0, M0/Mx with no lesion larger than 2cc in volume
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The following biopsy findings (biopsy must have MRI visualization and be within 6 months of planned NanoTherm® treatment):
- A positive biopsy for prostate cancer from the MRI-visualized lesion, at least one of which must be Gleason 3+4 (grade group 2)
- Lesion must be visualized by Multiparametric Magnetic Resonance Imaging (MP-MRI) on a scan that is less than 6 months old
- Patient expresses a preference for active surveillance, rather than surgery or radiation, to manage prostate cancer
- Based on the evaluation of the study investigator, appropriate for instillation of NanoTherm® under anesthesia based on location and size of the clinical target volume (CTV)
Exclusion Criteria:
- Previous treatment for cancer with radiation, androgen deprivation (including LHRH-agonists or antagonists or antiandrogens), or surgery for prostate cancer
- Active urinary tract infection
- Metallic implants below the neck
- Gleason 3+4 or higher cancer on prostate biopsy outside of the planned CTV
- Gleason 4+3 or higher on any prostate biopsy
- Hematological abnormality indicating increased risk of bleeding or clotting, for example low platelet count or anemia
- Participation concurrently in another clinical trial for prostate disease or in the last 30 days
- Known hypersensitivity to Axumin®

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT05010759
Contact: Lee Anne Loek, RN | 833-287-1150 | prostatestudy@magforce-usa.com | |
Contact: Michael Gonzalez | 833-287-1150 | prostatestudy@magforce-usa.com |
United States, Florida | |
Florida Urology Partners | Recruiting |
Tampa, Florida, United States, 33615 | |
Contact: Linda Seibert linda@gulfcoastcta.com | |
Principal Investigator: Osvaldo Padron, MD | |
United States, Texas | |
Urology Austin | Recruiting |
Austin, Texas, United States, 78759 | |
Contact: Jennifer Penshorn jennifer.penshorn@urologyaustin.com | |
Principal Investigator: Brian Mazzarella, MD | |
MagForce - San Antonio | Recruiting |
San Antonio, Texas, United States, 78229 | |
Contact: Lee Anne Loek, RN prostatestudy@magforce-usa.com | |
Contact: Michael Gonzalez prostatestudy@magforce-usa.com | |
Principal Investigator: Ian Thompson Jr., MD | |
Sub-Investigator: Ian Thompson III, MD | |
United States, Washington | |
MagForce USA | Recruiting |
Seattle, Washington, United States, 98105 | |
Contact: LeeAnne Loek, RN prostatestudy@magforce-usa.com | |
Contact: Michael Gonzalez prostatestudy@magforce-usa.com | |
Principal Investigator: Laurence Lee, MD |
Study Director: | David Hammond, MS | MagForce USA |
Responsible Party: | MagForce USA |
ClinicalTrials.gov Identifier: | NCT05010759 |
Other Study ID Numbers: |
MGF-0115 - Stage 2B |
First Posted: | August 18, 2021 Key Record Dates |
Last Update Posted: | March 16, 2023 |
Last Verified: | March 2023 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | Yes |
Device Product Not Approved or Cleared by U.S. FDA: | Yes |
Prostatic Neoplasms Genital Neoplasms, Male Urogenital Neoplasms |
Neoplasms by Site Neoplasms Prostatic Diseases |