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Prostate CancerNCT04243473

Biopsy Collection for Men Undergoing Brachytherapy for Prostate Cancer

An observational study of Prostate Cancer, run by Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins at 1 site in United States.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

The primary goal of this tissue collection protocol is to establish a framework for the acquisition and banking of biospecimen collected from men undergoing brachytherapy. Biopsies of the prostate is an invasive procedure; however, in this tissue collection protocol, biopsies are acquired intraoperatively while… Read more about this study

Who is it for?
Ages 18 to 100 years, men only
Conditions the study is for
Prostate Cancer
How many people
0 participants
Where
1 siteUnited States
Study dates
Jan 2026to 19 Jan 2026
Phase
Observational
Are there results?
None posted in the registry

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 to 100 years
  • Men only
  • No healthy volunteers
  • Adult, Older adult

Study population: The target population will be patients for whom the treatment plan includes brachytherapy for localized or locally advanced adenocarcinoma of the prostate who are seen in consultation at the Department of Radiation Oncology and Molecular Radiation Sciences.

Who may be able to join

  • Newly diagnosed prostate cancer within the past 12 months:
  • The patient has decided to undergo brachytherapy as treatment modality for his prostate cancer.
  • Suitable volume of disease for biopsy, defined as one or more of the following:
  • Identifiable lesions of greater or equal to one
  • Clinically palpable disease corresponding to (ipsilateral to) any involved core on biopsy OR
  • ≥50% of biopsy cores involved with cancer
Show all 9Show fewer
  • Patients or their legal representatives must have the ability to read, understand and provide written informed consent for the initiation of any study related procedures.
  • Males 18 years of age or older
  • Signed study-specific consent form prior to registration

Who cannot join

  • Prior history of any other malignancy which was either newly diagnosed or recurred (following prior curative treatment) within last 2 years, other than non-melanoma skin carcinoma.
  • Major medical or psychiatric illness which, in the investigator's opinion, would prevent completion of treatment and would interfere with follow up.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Johns Hopkins Sidney Kimmel Comprehensive Cancer Center

    Baltimore, Maryland, 21231

Other trials in United States

About this study

Official title: Prostate Tissue Biopsy Collection for Men Undergoing Brachytherapy for Treatment of Localized or Locally Advanced Prostate Cancer

The primary goal of this tissue collection protocol is to establish a framework for the acquisition and banking of biospecimen collected from men undergoing brachytherapy. Biopsies of the prostate is an invasive procedure; however, in this tissue collection protocol, biopsies are acquired intraoperatively while patients are prepped for brachytherapy seed placement, thus minimizing the inconvenience of the biopsy procedure for patients. The utility of these biopsies will provide a valuable resource for molecular assessments.

Read the detailed description

Many patients with metastatic prostate cancer who succumb to the disease are initially diagnosed with localized prostate cancer, where treatment has the potential to be curative. For men initially diagnosed with high risk or locally advanced prostate cancer, nearly 50% develop recurrence after primary therapy and can eventually progress to life-threatening metastatic disease. Combined androgen deprivation therapy (ADT) with ionizing radiation (IR) is the current mainstay of therapy for such men with high-risk prostate cancer. While it is likely that undetected, microscopic disseminated disease leads to the inability to cure in some men, there is also emerging evidence that escalating local therapy may still have benefit. It has been reported that metastasis-free survival and overall survival were significantly improved in men with high-risk localized prostate cancer treated with external beam radiotherapy (EBRT) with brachytherapy boost compared to men treated with EBRT alone, or with radical prostatectomy. The observation that enhanced IR-based local therapy could improve outcomes supports the notion that it is not microscopic systemic disease alone that leads to treatment failures of high-risk prostate cancer, but that more aggressive local management could still play a significant role.

A key question in the management of high risk prostate cancer is how can the investigators predict whether a patient with local or metastatic prostate cancer will have complete response with current IR-based therapy paradigms, or if patients would benefit from more aggressive dosing regimens despite a potential for increased adverse effects. A major limitation to developing effective strategies for predicting treatment response to conventional vs. more aggressive dosing regiments has been a paucity of tissues from patients undergoing radiation therapy, including at baseline and during follow up, as well as a lack of the molecular, cell biological, and biochemical states of the cancer and microenvironmental cells in such tissues. The availability of such tissues and data can accelerate the discovery process of identifying novel biomarkers and therapeutic strategies for patients with prostate cancer.

Thus, a more comprehensive understanding of the tissue microenvironment at base line and following radiation therapy may inform improved strategies in radiation dosing, as well as complementary neoadjuvant and adjuvant treatments to achieve complete response in organ-confined disease in the future. Such an understanding of the tissue and biological response of prostate cancer to radiotherapy may also provide insights to enhance IR-based therapy of metastatic and oligometastatic disease, for both palliative and perhaps life-prolonging intent.

The primary goal of this tissue collection protocol is to establish a framework for the acquisition and banking of biospecimen collected from men undergoing brachytherapy. Biopsy of the prostate is an invasive procedure; however, in this tissue collection protocol, biopsies are acquired intraoperatively while patients are prepped for brachytherapy seed placement, thus minimizing the discomfort as well as the inconvenience of the biopsy procedure for patients. A subset of these patients will choose to have a 2 year confirmatory biopsy to detect the absence or persistence of disease. Biopsy cores collected 2 years post-IR therapy will also be included in the investigators' correlative studies. These biopsies will provide a valuable resource for molecular and pathological assessments. To extract the maximal amount of information from these biopsy specimens, the investigators will utilize comprehensive genomic, pathological, and biochemical analyses including DNA-seq, RNA-seq, methylome analysis, single cell sequencing, immunohistochemistry (IHC)/immunofluorescence (IF). The investigators will also collect and maintain a database of the clinicopathological parameters and follow up information for these specimens. The biobank will thus represent a bank of tissues as well as the correlative measurements on those tissues.

Conditions
Prostate Cancer
Keywords
Brachytherapy
Medical subject headings
Prostatic Neoplasms

What participants receive

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

Study groups in NCT04243473
Study groupRoleWhat they receive
Prostate Biopsy, Urine sample and Blood sampleFor purposes of exploratory analyses, blood (whole blood, serum, plasma) and urine samples will be collected pre-IR treatment, 1-month post-implant, 6 month follow-up and 2 years follow-up. Patients will be asked to opt-in on the consent form specifically for the 2-year biopsy, otherwise they have the choice to opt out.

What is being measured

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

  1. Acquisition and banking of biospecimen collected from men undergoing brachytherapy

    Prostate biopsies and biospecimen will be sequenced to characterize the baseline and post-treatment transcriptional and genomic/epigenomic changes of the prostate tissue microenvironment in response to IR-based therapy. We will also collect and maintain clinicopathological parameters including baseline prostate-specific antigen (PSA), stage, grade, demographic information, and follow up data including biochemical/radiological recurrence, and other molecular attributes. We will also obtain non-invasive and minimally invasive blood and urine specimens for banking and potential correlative genomic and biochemical measurements.

    Measured: Up to 2 years post-implant at confirmatory biopsy

Timeline

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

  1. First posted28 Jan 2020
  2. Study startJan 2026 (estimated)
  3. Primary completionJan 2026 (estimated)
  4. Study completion19 Jan 2026

Why it stopped: The study team decided to not move forward with enrolling patients because funding was not identified to support the project.

Resources

More details

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

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04243473
Sponsor's protocol ID
IRB00209927
Status last verified
Mar 2026
First submitted
13 Jan 2020
Last updated
3 Mar 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Bolla M, Collette L, Blank L, Warde P, Dubois JB, Mirimanoff RO, Storme G, Bernier J, Kuten A, Sternberg C, Mattelaer J, Lopez Torecilla J, Pfeffer JR, Lino Cutajar C, Zurlo A, Pierart M. Long-term results with immediate androgen suppression and external irradiation in patients with locally advanced prostate cancer (an EORTC study): a phase III randomised trial. Lancet. 2002 Jul 13;360(9327):103-6. doi: 10.1016/s0140-6736(02)09408-4.

    PubMed 12126818
  • D'Amico AV, Moul J, Carroll PR, Sun L, Lubeck D, Chen MH. Cancer-specific mortality after surgery or radiation for patients with clinically localized prostate cancer managed during the prostate-specific antigen era. J Clin Oncol. 2003 Jun 1;21(11):2163-72. doi: 10.1200/JCO.2003.01.075.

    PubMed 12775742
  • Kishan AU, Cook RR, Ciezki JP, Ross AE, Pomerantz MM, Nguyen PL, Shaikh T, Tran PT, Sandler KA, Stock RG, Merrick GS, Demanes DJ, Spratt DE, Abu-Isa EI, Wedde TB, Lilleby W, Krauss DJ, Shaw GK, Alam R, Reddy CA, Stephenson AJ, Klein EA, Song DY, Tosoian JJ, Hegde JV, Yoo SM, Fiano R, D'Amico AV, Nickols NG, Aronson WJ, Sadeghi A, Greco S, Deville C, McNutt T, DeWeese TL, Reiter RE, Said JW, Steinberg ML, Horwitz EM, Kupelian PA, King CR. Radical Prostatectomy, External Beam Radiotherapy, or External Beam Radiotherapy With Brachytherapy Boost and Disease Progression and Mortality in Patients With Gleason Score 9-10 Prostate Cancer. JAMA. 2018 Mar 6;319(9):896-905. doi: 10.1001/jama.2018.0587.

    PubMed 29509865
  • Potters L, Morgenstern C, Calugaru E, Fearn P, Jassal A, Presser J, Mullen E. 12-year outcomes following permanent prostate brachytherapy in patients with clinically localized prostate cancer. J Urol. 2008 May;179(5 Suppl):S20-4. doi: 10.1016/j.juro.2008.03.133.

    PubMed 18405743
  • Radwan N, Phillips R, Ross A, Rowe SP, Gorin MA, Antonarakis ES, Deville C, Greco S, Denmeade S, Paller C, Song DY, Diehn M, Wang H, Carducci M, Pienta KJ, Pomper MG, DeWeese TL, Dicker A, Eisenberger M, Tran PT. A phase II randomized trial of Observation versus stereotactic ablative RadiatIon for OLigometastatic prostate CancEr (ORIOLE). BMC Cancer. 2017 Jun 29;17(1):453. doi: 10.1186/s12885-017-3455-6.

    PubMed 28662647
  • Otake S, Goto T. Stereotactic Radiotherapy for Oligometastasis. Cancers (Basel). 2019 Jan 23;11(2):133. doi: 10.3390/cancers11020133.

    PubMed 30678111

Questions about this trial

What is this clinical trial studying?

An observational study of Prostate Cancer, run by Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins at 1 site in United States.

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 2 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: withdrawn, as of the sponsor's last update on 3 Mar 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. 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?

The study was withdrawn before enrolling participants, so there are no results.

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

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Acquisition and banking of biospecimen collected from men undergoing brachytherapy (time frame: Up to 2 years post-implant at confirmatory biopsy). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04243473, which also lists 6 linked publications.

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 3 Mar 2026.

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