Integrated Boost to the Dominant Intraprostatic Nodule Based on Ga-68 PSMA PET/MR Study of SBRT With Prostate Cancer

Treatment Clinical Trial

— SBRT  

Official title:

A Phase I Integrated Boost to the Dominant Intraprostatic Nodule Based on Ga-68 Prostate-Specific Membrane Antigen (PSMA) PET/MR Study of Stereotactic Body Radiation Therapy in Patients With Localized Prostate Cancer

Clinical Trial Details — Status: Recruiting

Administrative data

• NCT number: NCT04599699
• Other study ID #: Changhai Hospi
• Status: Recruiting
• Phase: N/A
• Start date: November 1, 2020
• Est. completion date: May 1, 2023

Study information

• Verified date: October 2020
• Source: Changhai Hospital
• Contact: Huojun Zhang, PhD
• Phone: 021-31162222
• Email: chyyzhj[@]163.com
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

The aim of this study is to test the safety and efficacy of integrated boost to the dominant intraprostatic nodule based on Ga-68 Prostate-Specific Membrane Antigen (PSMA) PET/MR in Stereotactic Body Radiation Therapy (SBRT) in localized prostate carcinoma in patients for whom the standard treatment is the irradiation of the entire prostate gland with or without seminal vesicles accompanied or not by hormonal therapy.

Description:

Radiotherapy is considered standard of care treatment for prostate cancer. In light of the accumulating clinical evidence favoring the use of hypo fractionation, SBRT regimen might constitute a much more convenient non-invasive and highly efficient outpatient therapy. Although the proposed extreme hypofractionated radiotherapy approach was expected to provide excellent local control of the primary prostate cancer, a proportion of patients with intermediate- or high-risk disease may have recurrences with local recurrence or distant metastasis in the future, requiring strategies to minimize systemic disease. Ga-68 PSMA PET/MR has high accuracy in the diagnosis and staging of prostate cancer. In this protocol, pretreatment Ga-68 PSMA PET/MR and CT scanning were performed in all patients as well as the imaging fusion before delineating the target. This study would explore the simultaneously integrated boost or equential integrated boost to the dominant intraprostatic nodule based on Ga-68 PSMA PET/MR in SBRT.

Recruitment information / eligibility

• Status: Recruiting
• Enrollment: 20
• Est. completion date: May 1, 2023
• Est. primary completion date: May 1, 2022
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years to 99 Years

Eligibility

Inclusion Criteria:

• Histologically confirmed adenocarcinoma of the prostate

• tumor clinical stage cT1-3N0M0 according to AJCC TNM 2017

• Without any treatment of prostate cancer including radiotherapy, ADT, chemotherapy, focal treatment, etc.

• With the examination of Ga-68 PSMA PET/MR

• International Prostate Symptom Score(IPSS)<15 (alpha blockers allowed), without severe urethral obstruction symptoms

• ECOG performance status 0-2

• Written informed consent according to ICH/GCP regulations before registration and prior to any trial specific procedures

Exclusion Criteria:

• Prior pelvic RT

• A tumor located at less than 3 mm from the urethra or rectum when measured at the MRI

• Tumor clinical stage cT4, with metastases including bone, lymph nodes or organ metastasis

• Histologically confirmed neuroendocrine tumor or small cell carcinoma of the prostate

• Severe or active co-morbidity likely to impact on the advisability of SBRT like severe liver or kidney dysfunction, etc.

• Patients with other malignancies, or acute or other severe infections, with ulcerative colitis, inflammatory bowel disease, etc.

• Patients who have participated in other clinical trials for less than three months

• Patients have acute prostatitis or chronic prostatitis with urinary symptoms

• Urine routine indicates obvious urinary system infection and no significant improvement after anti-infective treatment, or conversion to recurrent urinary system infection

• Unsuitable to participate in this clinical trial judged by the investigator

Related Conditions & MeSH terms

• Prostatic Neoplasms
• Treatment

Intervention

Radiation:
• Stereotactic Body Radiation Therapy (SBRT)
Very Low, Low, favorable, or Good Prognostic Intermediate prostate cancer:SBRT; Unfavorable, or Poor Prognostic Intermediate prostate cancer: SBRT accompanied 4 months ADT;High or Very High prostate cancer: SBRT accompanied 2 years ADT.

Locations

Country	Name	City	State
China	Shanghai Changhai Hospital	Shanghai	Shanghai

Sponsors (1)

Lead Sponsor	Collaborator
Changhai Hospital

Country where clinical trial is conducted

China, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	The Probability of Acute genitourinary (GU) , gastrointestinal (GI) toxicity and erectile dysfunction	Acute genitourinary (GU) , gastrointestinal (GI) toxicity and erectile dysfunction (ED) (grade 2 or more) according to the NCI CTCAE v4.0.	90 days after the first fraction of radiotherapy treatment
Secondary	The Probability of Chronic genitourinary (GU) , gastrointestinal (GI) toxicity and erectile dysfunction (ED)	Chronic genitourinary (GU) , gastrointestinal (GI) toxicity and erectile dysfunction (ED) (grade 2 or more) according to the NCI CTCAE v4.0.	> 90 days and up to 3 years from the start of protocol treatment
Secondary	1-year Biochemical Progression-free Survival (bPFS)	Biochemical Progression-free Survival (bPFS)	Assessment at 1-year
Secondary	1-year Local Progression-Free-Survival(LPFS)	Local Progression-Free-Survival(LPFS)	Assessment at 1-year
Secondary	1-year Distant Metastasis Free Survival(DMFS)	Distant Metastasis Free Survival(DMFS)	Assessment at 1-year
Secondary	1-year Overall Survival (OS)	Overall Survival (OS)	Assessment at 1-year