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Urinary Bladder, OveractivePhase 2BlossomNCT01604928

Study to Test the Efficacy and Safety of YM178 in Subjects With Symptoms of Overactive Bladder

A Phase 2 study testing YM178 and tolterodine in people with Urinary Bladder, Overactive, run by Astellas Pharma Europe B.V. at 30 sites in 6 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The study is intended to test efficacy, safety and tolerability of two doses of YM178 against placebo and tolterodine to treat patients with symptoms of over active bladder. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Urinary Bladder, Overactive
What is being tested?
YM178 and tolterodine
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
260 participants
Where
30 sitesin 6 countries
Study dates
5 Apr 2004to 25 Jan 2005
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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patient is willing and able to complete the micturition diary correctly.
  • Symptoms of overactive bladder (urinary frequency and urgency with or without incontinence) for ≥ 3 months
  • At randomization:
  • Patient must experience frequency of micturition on average ≥ 8 times per 24-hour period during the 3-day micturition diary period
  • Patient must experience at least 3 episodes of urgency (grade 3 or 4) with or without incontinence, during the 3-day micturition diary period

Who cannot join

  • Pregnant women or women who intend to become pregnant during the study or women of childbearing potential who are sexually active and practicing an unreliable method of birth control or will be lactating during the study. Reliable contraceptive methods are intra-uterine devices, contraceptive pills of combination type, hormonal implants, contraceptive patches and injectable contraceptives
  • Clinically significant outflow obstruction (at the discretion of the investigator)
  • Significant post void residual volume (PVR>200ml)
  • Significant stress incontinence or mixed stress/urge incontinence where stress is the predominant factor as determined by the investigator (for female patients confirmed by a cough provocation test)
  • Patients with a neurological cause for abnormal detrusor activity
  • Diabetic neuropathy
Show all 20Show fewer
  • Evidence of a symptomatic urinary tract infection, chronic inflammation such as interstitial cystitis, bladder stones, previous pelvic radiation therapy or previous or current malignant disease of the pelvic organs
  • Uncontrolled narrow angle glaucoma, urinary or gastric retention, colitis ulcerosa, toxic megacolon, myasthenia gravis or any other medical condition which in the opinion of the investigator makes the use of anticholinergics contra-indicated
  • Non-drug treatment including electrostimulation therapy
  • (a bladder training program or pelvic floor exercises which started more than 1 month prior to entry into the study can be continued)
  • Use of medications intended to treat urinary incontinence or listed in Appendix 1 Part A. Part B lists medications that are restricted but accepted under certain conditions
  • Known or suspected hypersensitivity to tolterodine, other anticholinergics, ß-adrenoceptor agonists, or lactose or any of the other inactive ingredients
  • Any clinically significant cardiovascular complication including CVA, recent myocardial infarction and uncontrolled hypertension, indicated by a sitting systolic blood pressure ≥ 180 mmHg and/or diastolic blood pressure ≥ 110 mmHg
  • Any clinically significant condition, which in the opinion of the investigator makes the patient unsuitable for the trial
  • Participation in any clinical trial within 30 (90 in the UK) days prior to randomization
  • Employees of the sponsor, third parties associated with the study, or the study site
  • At randomization:
  • Patient who did not complete the micturition diary according to the instructions
  • Average total daily urine volume > 3000 ml as recorded in the micturition diary
  • Clinically significant elevation of serum creatinine or liver enzymes as evidenced by creatinine >150 mmol/L, ASAT or ALAT > 2x upper limit of normal range (ULN), γ-GT > 3x ULN and/or abnormal serum total bilirubin (as assessed in visit 1 samples or alternative sampling within 4 weeks prior to visit 1)

Trial locations and contacts

30 sites in 6 countries.

30 sites in 6 countries

Germany7 sites
  • Site: 32

    Bad Ems, 56130

  • Site: 30

    Emmendingen, 79312

  • Site: 35

    Frankfurt, 60326

  • Site: 34

    Hagenow, 19230

  • Site: 33

    Hamburg, 20253

  • Site: 36

    Koblenz, 56068

  • Site: 31

    Trier, 54290

Other trials in Germany

Czechia6 sites
  • Site: 25

    Mělník, 276 01

  • Site: 22

    Prague, 128 08

  • Site: 24

    Prague, 140 59

  • Site: 20

    Prague, 180 81

  • Site: 21

    Ústí nad Labem, 40001

  • Site: 23

    Ústí nad Labem, 401 13

Other trials in Czechia

Sweden5 sites
  • Site: 55

    Gothenburg, 413 45

  • Site: 53

    Linköping, 582 24

  • Site: 50

    Lund, 221 85

  • Site: 51

    Stockholm, 141 86

  • Site: 52

    Uppsala, 751 85

Other trials in Sweden

United Kingdom5 sites
  • Site: 64

    Bimingham, B15 2TG

  • Site: 62

    London, N19 5LW

  • Site: 63

    London, W1P 7PN

  • Site: 60

    Sheffield, S10 2JF

  • Site: 61

    Swansea, SA6 6NL

Other trials in United Kingdom

Belgium4 sites
  • Site: 12

    Brussels, 1090

  • Site: 13

    Edegem, 2650

  • Site: 11

    Ghent, 9000

  • Site: 10

    Leuven, 3000

Other trials in Belgium

Spain3 sites
  • Site: 42

    Alzira-Valencia, 46600

  • Site: 40

    Madrid, 28046

  • Site: 43

    Miranda de Ebro, 09200

Other trials in Spain

About this study

Official title: A Randomized, Double-blind, Parallel Group, Proof of Concept Study of YM178 in Comparison With Placebo and Tolterodine in Patients With Symptomatic Overactive Bladder

The study is intended to test efficacy, safety and tolerability of two doses of YM178 against placebo and tolterodine to treat patients with symptoms of over active bladder.

Read the detailed description

This is a multinational, multicenter, double-blind, double-dummy,

randomized, parallel group, placebo and active controlled phase II proof-of concept study. Patients are enrolled into a single-blind, 2-week placebo run in

period after which they are randomized to 4 weeks of double-blind

treatment with YM178 (low dose and high dose), placebo or tolterodine. Subsequently patients will be followed for an additional 2 weeks

with single-blind placebo treatment. There are 6 visits in total: visit 1 at

enrolment, visit 2 (baseline) after the 2-week placebo run-in, visits 3, 4 and 5

after 1, 2 and 4 weeks of double-blind treatment respectively, and visit 6

after a 2-week follow-up.

Being tested
YM178, tolterodine, Placebo
Keywords
Overactive Bladder, YM178, Mirabegron, Frequency, Urinary urge incontinence, Urgency, Urinary incontinence, Micturition
Medical subject headings
Urinary Bladder, Overactive, Urinary Incontinence, Urge, Urinary Incontinence

What participants receive

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

  • YM178Drug

    Also called mirabegron

    Oral

  • tolterodineDrug

    Also called Detrusitol

    Oral

  • PlaceboDrug

    Oral

Study groups in NCT01604928
Study groupRoleWhat they receive
YM178 Dose 1Experimentallow dose
Receives: Drug: YM178
YM178 Dose 2Experimentalhigh dose
Receives: Drug: YM178
TolterodineActive comparatorOral
Receives: Drug: tolterodine
PlaceboPlacebo comparatorOral
Receives: Drug: Placebo

What is being measured

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

  1. Change from baseline in mean number of micturitions per 24 hours

    Measured: Baseline and 4 weeks (end of treatment)

Secondary outcomes (4)
  1. Change from baseline in mean number of urgency episodes/24 hours

    Measured: Baseline and 4 weeks (end of treatment)

  2. Change from baseline in mean volume voided per micturition

    Measured: Baseline and 4 weeks (end of treatment)

  3. Change from baseline in mean number of urge incontinence episodes/24 hours

    Measured: Baseline and 4 weeks (end of treatment)

  4. Change from baseline in mean number of incontinence episodes/24 hours

    Measured: Baseline and 4 weeks (end of treatment)

Timeline

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

  1. First posted24 May 2012 (estimated)
  2. Study start5 Apr 2004
  3. Primary completion25 Jan 2005
  4. Study completion25 Jan 2005

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
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
260 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01604928
Sponsor's protocol ID
178-CL-008
Acronym
Blossom
Status last verified
Oct 2024
First submitted
22 May 2012
Last updated
31 Oct 2024
Results posted
No
Data monitoring committee
No
Individual data sharing
Yes: Access to anonymized individual participant level data collected during the study, in addition to study-related supporting documentation, is planned for studies conducted with approved product indications and formulations, as well as products terminated during development. Studies conducted with product indications or formulations that remain active in development are assessed after study completion to determine if Individual Participant Data can be shared. Further details on Astellas' data sharing policy can be found at https://www.clinicaltrials.astellas.com/transparency/.

Publications

  • Chapple CR, Amarenco G, Lopez Aramburu MA, Everaert K, Liehne J, Lucas M, Vik V, Ridder A, Snijder R, Yamaguchi O; BLOSSOM Investigator Group. A proof-of-concept study: mirabegron, a new therapy for overactive bladder. Neurourol Urodyn. 2013 Nov;32(8):1116-22. doi: 10.1002/nau.22373. Epub 2013 Feb 19.

    PubMed 23424164

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing YM178 and tolterodine in people with Urinary Bladder, Overactive, run by Astellas Pharma Europe B.V. at 30 sites in 6 countries.

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 5 inclusion and 20 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: finished, as of the sponsor's last update on 31 Oct 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 30 sites in Germany, Czechia, Sweden, United Kingdom, Belgium and 1 more country. 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. Some participants in this study may receive a placebo. 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?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Change from baseline in mean number of micturitions per 24 hours (time frame: Baseline and 4 weeks (end of treatment)). 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 NCT01604928, which also lists 1 linked publication.

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 31 Oct 2024; AzTrials last refreshed its copy on 7 Nov 2026.

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