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Prostate CancerNCT06220435

Tumor-directed Radiation Therapy for Patients With the Highest Risk Category of Localized Prostate Cancer

A study testing Ultra-hypofractionated radiotherapy regimen. in people with Prostate Cancer, run by Region Skane at 2 sites in Sweden.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

HYPO-RT-PC boost is is an open-label, multicentre, phase II trial evaluating safety and efficacy of real-time image-guided tumor-directed ultra-hypofractionated radiation boost and lymph node irradiation for patients with node-negative high risk localized prostate cancer. Read more about this study

Who is it for?
Ages 18 years and older, men only
Conditions the study is for
Prostate Cancer
What is being tested?
Ultra-hypofractionated radiotherapy regimen.
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
76 participants
Where
2 sitesSweden
Study dates
25 Sep 2023to 1 Sep 2031
Phase
Interventional
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • Men only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Life expectancy >5 years
  • Age ≥18 years
  • World Health Organization (WHO) performance status 0-2
  • Histological evidence of prostate cancer
  • Classified as very high-risk according to national guidelines (2-3 of following high risk criteria: T3 / Gleason grade 8 /Prostate-specific antigen (PSA) 20-49 μg/L or and/or Gleason score 9-10 and/or PSA ≥40 μg/L
  • At least one Prostate Imaging-Reporting and Data System (PI-RADS) 4-5 lesion on diagnostic Magnetic resonance imaging (MRI)
Show all 9Show fewer
  • Patients must be able to comply with the protocol
  • Signed informed consent
  • Adequate laboratory findings: haemoglobin (Hb) >90 g/L, absolute neutrophil count >1.0x10^9/l, platelets >75x10^9/l, bilirubin <2.0 x upper limit of normal (ULN), alanine aminotransferase (ALAT) <5x ULN and creatinine <2.0x ULN)

Who cannot join

  • Regional or distant metastasis
  • Any contraindications for MRI
  • PSA >150 ng/ml
  • Previous pelvic radiotherapy
  • Prior prostate surgery including transurethral resection of the prostate (TURP)
  • Endocrine treatment (past or present)
Show all 9Show fewer
  • Other malignancies than prostate cancer and basalioma in the past five years
  • Serious disease state that makes study inclusion and treatment unsuitable
  • Severe lower urinary tract symptoms (International Prostate Symptom Score (IPSS) ≥20)

Trial locations and contacts

2 sites in 1 country. Contact the study team or a site near you to ask about taking part.

Adalsteinn Gunnlaugsson, MD, PhD contact

+46 4617 6268

Adalsteinn.Gunnlaugsson@skane.se

HYPO-RT-PC boost Clinical Trials Office contact

+46 4617 8559

cto.hematologi_onkologi.se@skane.se

Sweden2 sites, 2 recruiting
  • Region Skåne, Skåne University Hospital

    Lund

    Adalsteinn Gunnlaugsson, MD, PhD, +46 4617 6268, Adalsteinn.Gunnlaugsson@skane.se

    Clinical Trials Office, cto.hematologi_onkologi.se@skane.se

    Recruiting
  • Region Västerbotten, Umeå University Hospital

    Umeå

    Karin Söderkvist, MD, PhD, +46907851000, karin.soderkvist@umu.se

    Recruiting

Other trials in Sweden

About this study

Official title: Real-time Image-guided Ultra-hypofractionated Focal Boost to Intraprostatic Lesion(s) With Lymph Node Irradiation for a Very High High-risk Localized Prostate Cancer (the HYPO-RT-PC Boost Trial)

HYPO-RT-PC boost is is an open-label, multicentre, phase II trial evaluating safety and efficacy of real-time image-guided tumor-directed ultra-hypofractionated radiation boost and lymph node irradiation for patients with node-negative high risk localized prostate cancer.

Read the detailed description

HYPO-RT-PC boost is is an open-label, multicentre, phase II trial evaluating safety and efficacy of real-time image-guided tumor-directed ultra-hypofractionated radiation boost and lymph node irradiation for patients with node-negative high risk localized prostate cancer. 76 participants will be enrolled in the study.

Specific aims of the study are:

  • To study the feasibility of ultra-hypofractionation target lesion boost for node-negative very high-risk prostate cancer together with lymph node irradiation (primary outcome).
  • To study the effectiveness of ultra-hypofractionated target lesion boost for high-risk prostate cancer.
  • To study the feasibility of defining focal boost during concomitant androgen deprivation therapy with advanced functional imaging methods.
Conditions
Prostate Cancer
Being tested
Ultra-hypofractionated radiotherapy regimen.
Keywords
very high risk prostate cancer, radiotherapy, localized prostate cancer treatment, ultra-hypofractionated radiation boost
Medical subject headings
Prostatic Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Ultra-hypofractionated radiotherapy regimen.Radiation

    • Prostate tumor(s): 49 Gray (Gy)/7 fractions
    • Prostate gland: 42.7 Gy/7 fractions
    • Elective lymph nodes: 29.4 Gy/7 fractions
    • Seminal vesicles: 31.15 Gy/7 fractions
Study groups in NCT06220435
Study groupRoleWhat they receive
HYPO-RT-PC boostExperimentalUltra-hypofractionated seven-fraction radiotherapy regimen including focal boost and lymph node irradiation.
Receives: Radiation: Ultra-hypofractionated radiotherapy regimen.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Grade 3+ Genitourinary Adverse Events

    Acute grade 3+ genitourinary Adverse Events according to Common Terminology Criteria for Adverse Events (CTCAE) v5.0.

    Measured: start of treatment - 5 years

Secondary outcomes (11)
  1. Grade 2+ Genitourinary Adverse Events

    Acute grade 2+ genitourinary Adverse Events according to CTCAE v5.0.

    Measured: start of treatment - 5 years

  2. Failure-free survival

    Measured: consent date - 5 years

  3. Local failure-free survival

    Measured: enrollment date - 5 years

  4. Biochemical failure-free survival

    Measured: enrollment date - 5 years

  5. Cancer-specific survival

    Measured: enrollment date - 5 years

  6. Overall survival failure-free survival, cancer-specific survival, and overall survival

    Measured: enrollment date - 5 years

  7. Distant metastasis-free survival failure-free survival, cancer-specific survival, and overall survival

    Measured: enrollment date - 5 years

  8. Time to systemic therapy failure-free survival, cancer-specific survival, and overall survival

    Measured: enrollment date - 5 years

  9. Adverse Events according to CTCAE v5.0

    Measured: start of treatment - 5 years

  10. Health-related quality of life assessed by the European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire C-30 (EORTC QLQ-C-30)

    All of the scales and single-item measures range in score from 0 to 100. A high scale score represents a higher response level. Thus a high score for a functional scale represents a high / healthy level of functioning, a high score for the global health status / QoL represents a high QoL, but a high score for a symptom scale / item represents a high level of symptomatology / problems

    Measured: inclusion date - 5 years

  11. Health-related quality of life assessed by the European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire PR-25 (EORTC QLQ-PR25)

    It includes subscales assessing urinary symptoms, bowel symptom), treatment-related symptom) and sexual functioning with score from 0 to 4 per item. A high scale score represents a higher response level.

    Measured: inclusion date - 5 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted24 Jan 2024
  2. Study start25 Sep 2023
  3. Primary completion1 Sep 2031 (estimated)
  4. Study completion1 Sep 2031 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
76 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06220435
Sponsor's protocol ID
HYPO-RT-PC boost
Status last verified
Jul 2025
First submitted
10 Jan 2024
Last updated
12 Aug 2025
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing Ultra-hypofractionated radiotherapy regimen. in people with Prostate Cancer, run by Region Skane at 2 sites in Sweden.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 9 inclusion and 9 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 12 Aug 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in Sweden. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Adalsteinn Gunnlaugsson, MD, PhD (+46 4617 6268, Adalsteinn.Gunnlaugsson@skane.se), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Grade 3+ Genitourinary Adverse Events (time frame: start of treatment - 5 years). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 12 Aug 2025.

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