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Neoadjuvant TherapyPhase 2NCT05376722

A Study of Pamiparib Combined With Abiraterone Acetate in Neoadjuvant Treatment of Prostate Cancer

A Phase 2 study testing pamiparib, abiraterone and prednisone in people with Neoadjuvant Therapy, run by Hongqian Guo at 3 sites in China.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

To evaluate the pathological response rate of pamiparib combined with abiraterone acetate in neoadjuvant therapy for surgically resectable high-risk or very high-risk prostate cancer after radical prostatectomy Read more about this study

Who is it for?
Ages 18 to 80 years, men only
Conditions the study is for
Neoadjuvant Therapy
What is being tested?
pamiparib, abiraterone and prednisone
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
30 participants
Where
3 sitesChina
Study dates
22 Feb 2022to Sep 2024
Phase
Phase 2
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 80 years
  • Men only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Men aged ≥18 years and ≤80 years old.
  • Patients with prostate cancer diagnosed by histology or cytology who are suitable for radical prostatectomy.
  • All patients meet at least one of the following criteria:
  • Multiparametric MRI and PSMA PET/CT scan or CT scan showing primary tumor stage ≥ T3;
  • Primary tumor Gleason score ≥ 8;
  • Serum PSA concentration ≥ 20 ng/ml;
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  • Imaging assessment has regional lymph node metastasis (N1);
  • Eastern Cooperative Oncology Group (ECOG) performance status score≤1
  • Laboratory inspections meet the following requirements:
  • Blood routine: white blood cell count (WBC) ≥3.0×109/L, platelet count ≥100×109/L, hemoglobin ≥9g/dl; renal function: serum creatinine ≤2×ULN; liver function: alanine aminotransferase (ALT) and Aspartate aminotransferase (AST)≤2.5×ULN, total bilirubin TBIL≤1.5×ULN; coagulation function: international normalized ratio (INR)<1.5.
  • The subjects participate voluntarily, and the subjects themselves must sign the Informed Consent Form (ICF), indicating that they understand the purpose and required procedures of this research, and are willing to participate in the research. Subjects must be willing and comply with the prohibitions and restrictions set forth in the study protocol.
  • During the treatment, the testosterone level in the blood is reduced to the "castration" level, and the testosterone level is less than 50ng/dL;
  • The subjects can understand and are willing to sign the informed consent

Who cannot join

  • Patients with neuroendocrine, small cell, or sarcomatoid features on prostate histopathology.
  • Low- and intermediate-risk localized prostate cancer (all the following conditions are met) (PSA<20 ng/mL; Gleason score<8; clinical stage<T3).
  • Patients with clinical or radiological evidence suggestive of extraregional lymph node metastasis or bone or visceral metastasis (any M1).
  • Received androgen deprivation therapy (including drug or surgical castration) for more than 3 months or focal prostate cancer treatment or prostate cancer radiotherapy and chemotherapy in the past.
  • Patients with severe or uncontrolled concurrent infections.
  • Suffering from New York Heart Association (NYHA) class III/IV congestive heart failure, unstable angina or a history of myocardial infarction within the past 6 months.
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  • Uncontrolled severe hypertension, persistent uncontrolled diabetes, oxygen-dependent lung disease, chronic liver disease, or HIV infection.
  • In the past 5 years, other malignancies other than prostate cancer, but cured basal or squamous cell skin cancer can be enrolled.
  • Suffering from mental illness, mental disability or inability to give informed consent.

Trial locations and contacts

3 sites in 1 country.

hongqian guo, Dr. contact

13605171690

dr.ghq@163.com

shun zhang, Dr. contact

15050589789

explorershun@126.com

China3 sites, 3 recruiting
  • Department of Urology, Drum Tower Hospital, Medical School of Nanjing University, Institute of Urology, Nanjing University

    Nanjing, Jiangsu, 210000

    Shun Zhang, 15050589789 ext. 15050589789, explorershun@126.com

    Recruiting
  • Department of Urology, Drum Tower Hospital, Medical School of Nanjing University, Institute of Urology, Nanjing University

    Nanjing, Jiangsu, 210000

    Junlong Zhuang, MD, 8615950451917, zhuangjl-2008@163.com

    Recruiting
  • The Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School

    Nanjing, Jiangsu, 210000

    Hongqian Guo, Phd, 8613605171690, dr.ghq@nju.edu.cn

    Shun Zhang, MD, 8615050589789, explorershun@126.com

    Recruiting

Other trials in China

About this study

Official title: A Prospective Clinical Study of the Safety and Efficacy of Pamiparib Combined With Abiraterone Acetate in Neoadjuvant Treatment of High-risk or Very High-risk Localized Prostate Cancer

To evaluate the pathological response rate of pamiparib combined with abiraterone acetate in neoadjuvant therapy for surgically resectable high-risk or very high-risk prostate cancer after radical prostatectomy

Read the detailed description

the main purpose: To evaluate the pathological response rate of pamiparib combined with abiraterone acetate in neoadjuvant treatment of surgically resectable high-risk or very high-risk prostate cancer after radical prostatectomy; Note: pathological response rate = pathological complete response rate (pCR) + minimal residual disease (MRD)(defined as residual tumor with the largest crosssection dimension ≤5 mm OR RCB≤0.25CM³)

Secondary purpose:

  1. To evaluate the safety of pamiparib combined with abiraterone acetate as neoadjuvant therapy for high-risk or very high-risk prostate cancer;
  2. To evaluate the rate of PSA biochemical recurrence-free survival (bPFS) at 1 year after radical prostatectomy in neoadjuvant treatment of high-risk or very-high-risk prostate cancer with pamiparib combined with abiraterone acetate;
  3. The positive rate of surgical margins in radical prostatectomy;
  4. Downstaging rate of radical prostatectomy;
  5. Pathological response rate of neoadjuvant patients with HRR gene mutation;
Being tested
pamiparib, abiraterone, prednisone
Keywords
pamiparib, abiraterone acetate, high-risk prostate cancer

What participants receive

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

  • pamiparibDrug

    pamiparib 40 mg orally, twice a day

  • abirateroneDrug

    biraterone acetate 1000 mg orally, once a day

  • prednisoneDrug

    prednisone acetate tablets (prednisone) 5 mg, once a day

Study groups in NCT05376722
Study groupRoleWhat they receive
pamiparibExperimentalSubjects received pamiparib 40 mg orally, twice a day; abiraterone acetate 1000 mg orally, once a day; prednisone acetate tablets (prednisone) 5 mg, once a day; every 30 days Treatment cycle, treatment for 4-6 cycles, that is, 4-6 months. Robot-assisted laparoscopic radical prostatectomy and extended lymph node dissection within 30 days of the end of 4 months of neoadjuvant therapy. If the subjects have intolerable toxic reactions during the treatment period, the dose adjustment can be carried out. Day 1 of cycle 1, day 15 and day 1±3 days of each cycle thereafter, and 1 follow-up within 30 days after the end of treatment and before surgery; 1 prostate MRI during the screening period and within 30 days after the end of treatment and before surgery Scan, PSMA PET/CT scan or CT scan
Receives: Drug: pamiparib; Drug: abiraterone; Drug: prednisone

What is being measured

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

  1. the pathological response rate of pamiparib combined with abiraterone acetate in neoadjuvant therapy for surgically resectable high-risk or very high-risk prostate cancer after radical prostatectomy

    To evaluate the pathological response rate of pamiparib combined with abiraterone acetate in neoadjuvant therapy for surgically resectable high-risk or very high-risk prostate cancer after radical prostatectomy

    Measured: up to 6months

Secondary outcomes (6)
  1. AEs/SAEs

    The level of AEs defined by NCI-CTCAE v5.0. Safety assessments will be assessed and documented after initiation of study drug, regardless of relationship to study drug.

    The level of complications defined by Clavien-Dindo classification.

    Measured: Baseline up to 30 days after the last dose of study drug or before initiation of a new antitumor treatment, whichever occurred first

  2. the 1-year PSA biochemical recurrence-free survival (bPFS) rate after radical prostatectomy in neoadjuvant therapy of paamiparib combined with abiraterone acetate in high- or very-high-risk prostate cancer

    Defined as the proportion of patients who did not experience biochemical progression or death within 3 years of initiation of pamiparib treatment; biochemical progression was defined as an increase in serum PSA level to >0.2 ng/ml with 2 consecutive increases at least 3 months apart

    Measured: 3 years

  3. Rate of Positive Surgical Margins

    The proportion of subjects with positive surgical margins after radical prostatectomy

    Measured: up to 8 months

  4. Downstaging rate of radical prostatectomy

    Downstaging rate of radical prostatectomy

    Measured: four months to 2 years after surgery

  5. Pathological response rate of neoadjuvant patients with HRR gene mutation

    Pathological response rate of neoadjuvant patients with HRR gene mutation

    Measured: four months to 2 years after surgery

  6. PSA response rate

    The proportion of subjects with a ≥98% reduction in nadir PSA from baseline PSA during neoadjuvant therapy

    Measured: up to 2 years

Timeline

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

  1. First posted17 May 2022
  2. Study start22 Feb 2022
  3. Primary completionSep 2023 (estimated)
  4. Study completionSep 2024 (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 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
30 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05376722
Sponsor's protocol ID
IUNU-PC-111
Status last verified
Oct 2022
First submitted
23 Feb 2022
Last updated
5 Jan 2023
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing pamiparib, abiraterone and prednisone in people with Neoadjuvant Therapy, run by Hongqian Guo at 3 sites in China.

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 13 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: status not confirmed, as of the sponsor's last update on 5 Jan 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites in China. 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.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Results are not available in the source record.

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

Contact hongqian guo, Dr. (13605171690, dr.ghq@163.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

the pathological response rate of pamiparib combined with abiraterone acetate in neoadjuvant therapy for surgically resectable high-risk or very high-risk prostate cancer after radical prostatectomy (time frame: up to 6months). 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 5 Jan 2023.

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