Hypofractionated Radiosurgery for Localised Prostate Cancer (HYPOSTAT-III)

NCT ID: NCT06914544

Last Updated: 2025-04-10

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Clinical Phase

NA

Total Enrollment

175 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-07-01

Study Completion Date

2029-12-31

Brief Summary

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Hypofractionated radiosurgery with 5 fractions is considered standard of care for localized prostate cancer. The investigators initiated this multicenter phase II prospective trial to analyse feasibility (toxicity) of hypofractionated radiosurgery with 3 fractions in patients with localised prostate cancer under the hypothesis that the ratio of patients with late GU and GI toxicity ≥ grade 2 after 1 year amounts to 8.4% and 1.3% and is significant lower than 16.4% and 5.7% currently.

Detailed Description

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Experimental radiosurgery of the prostate with 3 fractions each with 9.5 -10.5 Gy (total application rate of 28.5-31.5 Gy) based on risk grading.

Planned visits are: Baseline, visits at every radiation day and four follow ups (4-6 weeks, 3 months, 6 months and one year after last day of radiation).

Conditions

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Prostate Cancer

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Hypofractionated Radiosurgery

3 fractions with 9.5-10.5 Gy, total dose 28.5-31.5 Gy

Group Type EXPERIMENTAL

Hypofractionated Radiosurgery

Intervention Type RADIATION

Image-guided stereotactic Linac based RT preferable with "dedicated radiosurgery system" such as CyberKnife

Interventions

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Hypofractionated Radiosurgery

Image-guided stereotactic Linac based RT preferable with "dedicated radiosurgery system" such as CyberKnife

Intervention Type RADIATION

Eligibility Criteria

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Inclusion Criteria

* Localised, histopathologically confirmed Prostate Cancer (cT1-T2c N0 M0)
* Gleason-grade ≤7, ISUP Grade Group 1-3
* Guideline-based staging
* Age ≥ 18 years
* PSA \< 20 ng/ml
* Volume of the prostate \< 80 cm³
* IPSS-Score ≤ 12
* Written informed consent

Exclusion Criteria

* History of prior pelvic radiotherapy
* Previous transurethral resection, laser enucleation or prostate ablation
* Contraindication to MRI or Fiducial marker implantation (e.g. gold allergy)
* Relevant comorbidity thought to adversely affect treatment compliance
* Legal incapacity or lack of informed consent
Minimum Eligible Age

18 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

No

Sponsors

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University of Luebeck

OTHER

Sponsor Role collaborator

University Hospital Schleswig-Holstein

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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David Krug, MD

Role: PRINCIPAL_INVESTIGATOR

University Hospital Schleswig-Holstein

Locations

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Saphir Radiosurgery Center Frankfurt am Main

Frankfurt am Main, Hesse, Germany

Site Status

University Hospital Frankfurt

Frankfurt am Main, Hesse, Germany

Site Status

European Radiosurgery Center Munich

Munich, Hesse, Germany

Site Status

Saphir Radiosurgery Center Norther Germany

Kiel, Schleswig-Holstein, Germany

Site Status

University Medical Center Schleswig-Holstein

Kiel, Schleswig-Holstein, Germany

Site Status

CyberKnife Centrum Mitteldeutschland

Erfurt, Thuringia, Germany

Site Status

Countries

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Germany

Central Contacts

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Oliver Blanck, PhD

Role: CONTACT

+4943150026666

Frauke Walther-Clausnizer

Role: CONTACT

+4943150026581

Facility Contacts

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Christian Arnold, MD

Role: primary

+496967735910

Alexander Muacevic, MD

Role: primary

+49894523360

Stefan Huttenlocher, MD

Role: primary

+494312398990

Hans-Ulrich Herold, MD

Role: primary

+4936178172310

References

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Krug D, Imhoff D, Haidenberger A, Hessler N, Schafer J, Huttenlocher S, Chatzikonstantinou G, Furweger C, Ramm U, Konig IR, Chun F, Staehler M, Rodel C, Muacevic A, Vonthein R, Dunst J, Blanck O. Robotic stereotactic body radiotherapy for localized prostate cancer: final analysis of the German HYPOSTAT trial. Strahlenther Onkol. 2023 Jun;199(6):565-573. doi: 10.1007/s00066-023-02044-2. Epub 2023 Feb 9.

Reference Type BACKGROUND
PMID: 36757424 (View on PubMed)

Other Identifiers

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DRKS00036292

Identifier Type: REGISTRY

Identifier Source: secondary_id

ARO-2024-3

Identifier Type: -

Identifier Source: org_study_id

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