ClinicalTrials.gg
RecruitingNCT07208240Updated Oct 6, 2025

Tb-PSMA-I&T Radionuclide Before Radical Prostatectomy in Patients With Locally Advanced Prostate Cancer - TbeforePROST Trial.

A Phase 1/2 interventional study of Tb-PSMA-I&T (Tb-PSMA) in High Risk Prostate Cancer, sponsored by Rabin Medical Center. Recruiting at 1 site in Israel. Open to male participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-10-06.

Sponsored by Rabin Medical Center · Phase 1/2, Interventional, and Treatment

From the registry’s dates

  • Started Aug 2025; still recruiting 1 year 2 months later.
Phase
Phase 1/2
Study type
Interventional
Enrollment
20
Allocation
Not applicable
Ages
18 Years and older
Sex
Male
01

Study summary

This is a multi-disciplinary collaboration between urologists, oncologists and nuclear medicine physicians from Beilinson hospital at Rabin Medical Center to address the major therapeutic challenge of locally advanced prostate cancer. Our aim is to evaluate the use of a novel treatment (Tb-PSMA) prior to the surgical removal of the prostate. This treatment has already shown initial promising results in patients with metastatic prostate cancer but has never been tested for locally advanced disease before surgery.

02

Conditions studied

  • High Risk Prostate Cancer

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Keywords

  • High risk Prostate cancer
  • Radical Prostatectomy
  • PSMA
  • Theranostics
  • radionuclide therapy
03

In context

Prostatic Neoplasms

7,046 studies on the registry are indexed under Prostatic Neoplasms; 1,580 are open to participants now.

This study's planned enrollment of 20 is below the median of 60 across 5,348 interventional studies indexed under Prostatic Neoplasms.

Browse Prostatic Neoplasms studies →

Lead sponsor

Rabin Medical Center is the lead sponsor of 393 studies on the registry; 30 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
Male
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Male aged 18 years and older.
  • Patients with high-risk localized prostate cancer (cT3/4 and/or Gleason score ≥ eight and/or prostate or PSA ≥ 20 ng/dl)
  • High PSMA expression was confirmed according to PROMISE V2 8
  • Patients should have an (ECOG) performance status score of 1 or lower and a of > 10 years.

Exclusion criteria

Exclusion Criteria:

  • count lower than 150×103/µl
  • white blood cell count lower than 4×103/µl,
  • concentration lower than 12mg/dl.
  • albumin concentration lower than 3.5 g/dl.
  • (GFR) lower than 40 mL/min.
  • usage of nephrotoxic drugs
  • distant disease
Terms in these criteria, in plain language(7)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Biopsy and archival tissue

A biopsy takes a small piece of tissue to examine. “Archival tissue” is a sample already taken, for example at diagnosis, and kept by the hospital.

Whether a stored sample will do depends on when it was taken, how much there is and what the study needs. Ask whether the study accepts your stored sample or needs a new biopsy.

ECOG performance status

A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.

0
Fully active, no restrictions.
1
Limited in strenuous activity, but walking and able to do light work, such as housework or office work.
2
Walking and able to look after yourself, but unable to work; up and about more than half of waking hours.
3
Able to look after yourself only in part; in bed or a chair more than half of waking hours.
4
Unable to look after yourself at all; in bed or a chair all day.

Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

Hemoglobin (Hb)

The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).

GFR and eGFR (kidney filtering)

GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².

Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.

Metastases

Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.

05

Study design

Phase
Phase 1 / Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
20 participants (estimated)

Study arms

  • Experimental
    Patients receiving Tb-PSMA before RAdical prostatectomy

    Patients with high-risk locally advanced prostate cancer will receive 3 Tb-161-PSMA treatments followed by radical prostatectomy.

    Drug: Tb-PSMA-I&T (Tb-PSMA)

Interventions

  • DrugTb-PSMA-I&T (Tb-PSMA)

    Terbium-161 produce beta emission with the addition of Auger electrons which have higher linear energy transfer and a very short range. By that it has the potential to improve local and distal (micro-metastatic disease) efficacy with a similar safety profile. It will be given to patients with high risk locally advanced prostate cancer prior to Radical prostatectomy

    Also known as: radical prostatectomy

06

What researchers measure

Primary outcomes

  1. Number of Tb-PSMA adverse effects measured by CTCAE v4.0 and number of surgical complications - measured by the Clavien-Dindo Classification (2009)

    Time frame: 1 year

  2. Surgical and clinical safety

    The primary outcome is the safety of administering Tb-PSMA before radical prostatectomy, its impact on intra- and post-operative clinical course according to the Clavien-Dindo Classification.

    Time frame: 1 year

Secondary outcomes

  1. Immediate oncological outcomes as measured by number of patients with positive surgical margins and number of patients who achieved biochemical complete response

    Secondary outcomes include the immediate response to treatment in terms of biochemical response. A post-surgical prostate specific antigen above 0.1 ng/ml is considered biochemical failure.

    Time frame: 3 months

07

Study locations

1 of 1 sites recruiting
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 6, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07208240
Responsible party
golan shay (Pro Shay Golan , Chair of Urology at Rabin Medical Cener, Rabin Medical Center) — Principal investigator
First posted
Oct 6, 2025
Start date
Aug 12, 2025
Primary completion
Aug 12, 2028 (estimated)
Completion
Aug 12, 2028 (estimated)
Last update
Oct 6, 2025

Study contacts

Shay Golan, MD
Contact
Shaygo1@gmail.com
+972507447573
Hana Burnstein, MD
Contact
hanna@erezcom.net
+972544400822
Shay Golan, MD
principal investigator · Rabin Medical Center

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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