UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000020674
Receipt number R000023857
Scientific Title A Randomized, Open-Label, Multicenter study to evaluate effect of tadalafil on lower urinary tract symptoms in patients with prostate cancer treated after radiotherapy (T-addon-RT trial)
Date of disclosure of the study information 2016/01/21
Last modified on 2022/07/27 10:06:14

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Basic information

Public title

A Randomized, Open-Label, Multicenter study to evaluate effect of tadalafil on lower urinary tract symptoms in patients with prostate cancer treated after radiotherapy (T-addon-RT trial)

Acronym

A Randomize study to evaluate effect of tadalafil on lower urinary tract symptoms in patients with prostate cancer treated after radiotherapy

Scientific Title

A Randomized, Open-Label, Multicenter study to evaluate effect of tadalafil on lower urinary tract symptoms in patients with prostate cancer treated after radiotherapy (T-addon-RT trial)

Scientific Title:Acronym

A Randomize study to evaluate effect of tadalafil on lower urinary tract symptoms in patients with prostate cancer treated after radiotherapy

Region

Japan


Condition

Condition

Prostate cancer treated after radiotherapy

Classification by specialty

Urology

Classification by malignancy

Malignancy

Genomic information

NO


Objectives

Narrative objectives1

This is a randomized, open-label, multinational, 12-week study to evaluating efficacy of tadalafil tadalafil on lower urinary tract symptoms in patients with prostate cancer treated after radiotherapy

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1

Exploratory

Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Change from Baseline to 12 Week of International Prostate Symptom Score (IPSS)

Key secondary outcomes

Change from Baseline to 12 Week of
IPSS Irritative Subscore
IPSS Voiding (Obstructive) Subscore
IPSS Quality of Life (QoL) Index
Uroflowmetry Parameter: Peak Flow Rate (Qmax)
Number of Participants with Adverse Events International Index of Erectile Function (IIEF)
Blood Pressure
Postvoid Residual Volume (PVR)
Prostate Specific Antigen (PSA)
Testosterone
oxygen stress


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Open -no one is blinded

Control

No treatment

Stratification

NO

Dynamic allocation

NO

Institution consideration


Blocking


Concealment

Numbered container method


Intervention

No. of arms

2

Purpose of intervention

Treatment

Type of intervention

Medicine

Interventions/Control_1

Tadalafil 5mg one a day, for 12 weeks

Interventions/Control_2

Observation for 12 weeks, continuation of concomitant argents

Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit

20 years-old <=

Age-upper limit

99 years-old >

Gender

Male

Key inclusion criteria

Males, 20 years or older, in patients with prostate cancer treated after radiotherapy;, including lower urinary tract symptoms (IPSS>7, or nocturia >1) who were not taking tadalafil
Agree not to change prostate cancer or use erectile dysfunction treatments anytime during the study
Have not taken phosphodiesterase type 5 (PDE5) inhibitors for specified duration of time prior to Visit 1.
Without biochemical recurrence (prostate specific antigen < 2.0) at the visit 1.

Key exclusion criteria

Prostate specific antigen (PSA) beyond 2.0 ng/mL defined for study at Visit 1.
History of urinary retention or lower urinary tract (bladder) stones within 6 months of Visit 1.
History of urethral obstruction due to stricture, valves, sclerosis, or tumor at Visit 1.
Clinical evidence of recurrent prostate cancer at Visit 1.
Clinical evidence of any of the bladder or urinary tract conditions, which may affect lower urinary tract symptom at Visit 1.
History of cardiac conditions, including angina requiring certain treatment with nitrates, unstable angina defined for study, positive cardiac stress test before starting the study.
History of significant central nervous system (CNS) injuries (including stroke or spinal cord injury) within 6 months of Visit 1.
Use of any nitrates, cancer chemotherapy, androgens, antiandrogens, estrogens, luteinizing hormone-releasing hormone (LHRH) agonists/antagonists, or anabolic steroids at Visit 1.
History of drug, alcohol, or substance abuse within the 6 months before Visit 1.
Have any condition, limitation, or disease that could, in the judgment of the investigator, preclude evaluation of response to tadalafil

Target sample size

100


Research contact person

Name of lead principal investigator

1st name Chikara
Middle name
Last name Ohyama

Organization

Hirosaki University Graduate School of Medicine

Division name

Department of Urology

Zip code

036-8562

Address

5 Zaifu-chou, Hirosaki, Japan

TEL

+81172395091

Email

coyama@hirosaki-u.ac.jp


Public contact

Name of contact person

1st name Shingo
Middle name
Last name Hatakeyama

Organization

Hirosaki University Graduate School of Medicine

Division name

Department of Urology

Zip code

036-8562

Address

5 Zaifu-chou, Hirosaki, Japan

TEL

+81172395091

Homepage URL


Email

shingorilla2@gmail.com


Sponsor or person

Institute

Hirosaki University Graduate School of Medicine

Institute

Department

Personal name



Funding Source

Organization

Oyokyo Kidney Research Institute

Organization

Division

Category of Funding Organization

Non profit foundation

Nationality of Funding Organization

JAPAN


Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Hirosaki Universicy IRB

Address

5 Zaifu-chou

Tel

0172395091

Email

rinri@hirosaki-u.ac.jp


Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions



Other administrative information

Date of disclosure of the study information

2016 Year 01 Month 21 Day


Related information

URL releasing protocol


Publication of results

Unpublished


Result

URL related to results and publications


Number of participants that the trial has enrolled


Results


Results date posted


Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics


Participant flow


Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Terminated

Date of protocol fixation

2016 Year 01 Month 01 Day

Date of IRB

2016 Year 02 Month 15 Day

Anticipated trial start date

2016 Year 01 Month 20 Day

Last follow-up date

2022 Year 07 Month 30 Day

Date of closure to data entry

2022 Year 07 Month 30 Day

Date trial data considered complete

2022 Year 07 Month 30 Day

Date analysis concluded

2023 Year 07 Month 30 Day


Other

Other related information



Management information

Registered date

2016 Year 01 Month 21 Day

Last modified on

2022 Year 07 Month 27 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000023857


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name