18 Participants Needed

Hypofractionated Radiation Therapy for Prostate Cancer

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Overseen ByAcara Carter
Age: 18+
Sex: Male
Trial Phase: Phase 1
Sponsor: University of Maryland, Baltimore
No Placebo GroupAll trial participants will receive the active study treatment (no placebo)
Approved in 3 JurisdictionsThis treatment is already approved in other countries

Trial Summary

What is the purpose of this trial?

A phase I trial to determine the safety of delivering three sequentially shorter RT schedules (20, 16, and 12 fractions) of HypoFx pelvic nodal RT in combination with a HypoFx, simultaneous integrated boost (SIB) to the prostate that have been designed to incrementally increased the biological equivalent dose (BED) to prostate cancer, while maintaining a constant BED to normal tissue toxicity.

Do I need to stop my current medications for the trial?

The trial does not specify if you need to stop taking your current medications, but it does exclude patients who are on full-dose anticoagulation or clopidogrel. If you are taking 81 mg of Aspirin daily, you can still participate.

What data supports the effectiveness of the treatment Hypofractionated Radiation Therapy for Prostate Cancer?

Research shows that hypofractionated radiation therapy (HFRT) for prostate cancer is effective and safe, with studies indicating improved control of cancer with higher radiation doses. Advanced techniques like intensity-modulated radiation therapy (IMRT) help deliver these doses while protecting healthy tissues, making the treatment more convenient and potentially more effective.12345

Is hypofractionated radiation therapy safe for humans?

Hypofractionated radiation therapy (HFRT) for prostate cancer is generally considered safe, but it may increase the risk of gastrointestinal (GI) and genitourinary (GU) side effects compared to traditional radiation therapy. Several studies have found HFRT to be well tolerated, although some patients may experience greater acute GI toxic effects.16789

How is hypofractionated radiation therapy different from other treatments for prostate cancer?

Hypofractionated radiation therapy (HFRT) for prostate cancer is unique because it delivers higher doses of radiation in fewer sessions, making it more convenient and potentially more cost-effective for patients. This approach may improve therapeutic outcomes by using larger daily doses, and advanced techniques like intensity modulated radiation therapy (IMRT) help target the prostate while sparing surrounding healthy tissue.135810

Eligibility Criteria

Men over 18 with intermediate to high-risk prostate cancer, without bone metastases or previous chemotherapy for prostate cancer. They must have a good performance status and be able to consent. Excluded are those with prior pelvic radiation, certain blood thinners, autoimmune diseases that could worsen with radiation, or any severe condition that might complicate participation.

Inclusion Criteria

I am fully active or can carry out light work.
Patient must be able to provide study specific informed consent prior to study entry.
My recent scans show no cancer spread to bones.
See 8 more

Exclusion Criteria

I am scheduled for a targeted radiation treatment for my prostate.
I have had surgery or specific treatments for prostate cancer.
I do not have an autoimmune disease that my doctor thinks would make pelvic radiation unsafe for me.
See 8 more

Timeline

Screening

Participants are screened for eligibility to participate in the trial

2-4 weeks

Treatment

Participants receive hypofractionated accelerated pelvic nodal radiotherapy with a simultaneously integrated prostate boost

12-20 fractions

Follow-up

Participants are monitored for safety and effectiveness after treatment

2 years
1 month after treatment, every 3 months for year 1, and every 6 months during year 2

Treatment Details

Interventions

  • Hypofractionated Radiation Therapy
Trial OverviewThis phase I trial tests the safety of three different schedules of Hypofractionated Radiation Therapy targeting the pelvic lymph nodes and prostate. The therapy aims to increase the dose to the cancer while keeping it safe for normal tissues.
Participant Groups
3Treatment groups
Experimental Treatment
Group I: Dose Level 3Experimental Treatment1 Intervention
Dose schedules were calculated to maintain similar BED for late normal tissue injury (α/β= 3.0 Gy), with an increased BED for PC (α/β= 1.5Gy). Patients be treated with 12 fractions. A total of 6 patients will be treated at the dose that is determined to be Maximum Tolerated Dose.
Group II: Dose Level 2Experimental Treatment1 Intervention
Dose schedules were calculated to maintain similar BED for late normal tissue injury (α/β= 3.0 Gy), with an increased BED for PC (α/β= 1.5Gy). Patients be treated with 16 fractions. A total of 6 patients will be treated at the dose that is determined to be Maximum Tolerated Dose.
Group III: Dose Level 1Experimental Treatment1 Intervention
Dose schedules were calculated to maintain similar BED for late normal tissue injury (α/β= 3.0 Gy), with an increased BED for PC (α/β= 1.5Gy). Patients be treated with 20 fractions. A total of 6 patients will be treated at the dose that is determined to be Maximum Tolerated Dose.

Hypofractionated Radiation Therapy is already approved in United States, European Union, Canada for the following indications:

🇺🇸
Approved in United States as Hypofractionated Radiotherapy for:
  • Soft tissue sarcoma
  • Extremity soft tissue sarcoma
🇪🇺
Approved in European Union as Hypofractionated Radiotherapy for:
  • Soft tissue sarcoma
  • Extremity soft tissue sarcoma
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Approved in Canada as Hypofractionated Radiotherapy for:
  • Soft tissue sarcoma
  • Extremity soft tissue sarcoma

Find a Clinic Near You

Who Is Running the Clinical Trial?

University of Maryland, Baltimore

Lead Sponsor

Trials
729
Recruited
540,000+

Findings from Research

In a study involving 160 prostate cancer patients, both hypofractionated radiation therapy regimens (56 Gy in 16 fractions and 67 Gy in 25 fractions) were found to be safe, with manageable levels of acute gastrointestinal and urinary toxicity.
Acute grade ≥2 gastrointestinal toxicity occurred in 26% of patients in the 56 Gy group and 20% in the 67 Gy group, indicating that both treatment schedules are effective options with acceptable safety profiles.
4 Weeks Versus 5 Weeks of Hypofractionated High-dose Radiation Therapy as Primary Therapy for Prostate Cancer: Interim Safety Analysis of a Randomized Phase 3 Trial.Fonteyne, V., Sarrazyn, C., Swimberghe, M., et al.[2022]
In a phase II study involving 40 high-risk prostate cancer patients, dose-escalated hypofractionated radiotherapy (hfrt) combined with androgen suppression therapy was found to be feasible, delivering 75 Gy in 25 fractions with minimal acute gastrointestinal and genitourinary toxicities.
Only 16.6% of patients experienced grade 2 genitourinary toxicity and 12.9% experienced gastrointestinal toxicity, indicating that the treatment can be administered safely while still targeting the pelvic lymph nodes.
Acute toxicity of hypofractionated intensity-modulated radiotherapy for prostate cancer.Drodge, CS., Boychak, O., Patel, S., et al.[2018]
In a study of 855 prostate cancer patients treated post-surgery, hypofractionated radiotherapy (HF) showed similar biochemical control rates and overall survival compared to conventionally fractionated radiotherapy (CF), indicating that both treatment methods are equally effective.
Patients receiving HF experienced significantly fewer acute gastrointestinal and genitourinary side effects, suggesting that HF may be a safer option in terms of immediate toxicity after treatment.
Comparative effectiveness of moderate hypofractionation with volumetric modulated arc therapy versus conventional 3D-radiotherapy after radical prostatectomy.Moll, M., D'Andrea, D., Zaharie, A., et al.[2022]

References

4 Weeks Versus 5 Weeks of Hypofractionated High-dose Radiation Therapy as Primary Therapy for Prostate Cancer: Interim Safety Analysis of a Randomized Phase 3 Trial. [2022]
Acute toxicity of hypofractionated intensity-modulated radiotherapy for prostate cancer. [2018]
Comparative effectiveness of moderate hypofractionation with volumetric modulated arc therapy versus conventional 3D-radiotherapy after radical prostatectomy. [2022]
The early result of whole pelvic radiotherapy and stereotactic body radiotherapy boost for high-risk localized prostate cancer. [2020]
Review of hypofractionated radiotherapy for prostate cancer. [2021]
Hyaluronic Acid Spacer for Hypofractionated Prostate Radiation Therapy: A Randomized Clinical Trial. [2023]
Radiation Therapy for Prostate Cancer Using HYpofractionation Directed by UltraSound (RAPHYDUS): A Brazilian Public Health Care System Study. [2022]
Clinical Outcomes of the CHIRP Trial: A Phase II Prospective Randomized Trial of Conventionally Fractionated Versus Moderately Hypofractionated Prostate and Pelvic Nodal Radiation Therapy in Patients With High-Risk Prostate Cancer. [2021]
Image-guided hypofractionated radiotherapy in low-risk prostate cancer patients. [2021]
10.United Statespubmed.ncbi.nlm.nih.gov
Moderate Hypofractionation in Intermediate- and High-Risk, Localized Prostate Cancer: Health-Related Quality of Life From the Randomized, Phase 3 HYPRO Trial. [2019]