| E.1 Medical condition or disease under investigation | 
| E.1.1 | Medical condition(s) being investigated  | 
 | 
| E.1.1.1 | Medical condition in easily understood language  | 
 | 
| E.1.1.2 | Therapeutic area  | Body processes [G] - Physical Phenomena [G01] | 
| MedDRA Classification | 
| E.1.2 Medical condition or disease under investigation | 
| E.1.2 | Version  | 17.0 | 
 
| E.1.2 | Level  | LLT | 
 
| E.1.2 | Classification code  | 10059617 | 
 
| E.1.2 | Term  | Overactive bladder | 
 
| E.1.2 | System Organ Class  | 100000004857 | 
 
 
 | 
| E.1.3 | Condition being studied is a rare disease  |  No  | 
| E.2 Objective of the trial | 
| E.2.1 | Main objective of the trial  | 
| To evaluate the safety and tolerability of long-term combination treatment of solifenacin (5 mg) with mirabegron (50 mg) compared to solifenacin and mirabegron monotherapy in subjects with overactive bladder (OAB)  | 
 
 
 | 
| E.2.2 | Secondary objectives of the trial  | 
To evaluate efficacy of long-term combination treatment with solifenacin and mirabegron
 
 To evaluate Patient Reported Outcomes (PRO) during long-term combination treatment with solifenacin and mirabegron
 
 | 
 
 
 | 
| E.2.3 | Trial contains a sub-study  |  No  | 
| E.3 | Principal inclusion criteria  | 
•  Subject is male or female and at least 18 years of age;
 • Subject is willing and able to complete the micturition diary and questionnaires correctly and able to measure his/her vital signs at home at stipulated time points, using the device provided by the study personnel, and to adequately record the readings;
 •  Subject has symptoms of “wet” OAB for at least three months | 
 
 
 | 
| E.4 | Principal exclusion criteria | 
•   Subject has neurological cause for detrusor overactivity (e.g.
 neurogenic bladder, diabetic neuropathy or systemic or central
 neurological disease such as multiple sclerosis and Parkinson's disease).
 •  Subject has chronic inflammation such as bladder pain syndrome /
 interstitial cystitis, symptomatic bladder stones or any previous or
 current radiation cystitis.
 •  Subject has moderate to severe hepatic impairment
 •  Subject has severe renal impairment
 •  Subject has a clinically significant abnormal ECG
 •  Subject has a concurrent malignancy or history of cancer (except
 noninvasive skin cancer) within the last 5 years prior to screening.
 •  Subject has a QTcF interval > 450 ms for males or > 470 ms for
 females or is at risk of QT prolongation (e.g., family history of long QT
 syndrome, hypokalaemia).
 •  Subject has severe hypertension, which is defined as a sitting
 average systolic blood pressure ≥ 180 mmHg and/or average diastolic
 blood pressure ≥ 110 mmHg.
 •  In the opinion of the investigator the subject has clinically significant bladder outflow obstruction at risk of urinary retention;
 •  Subject has significant PVR volume (> 150 mL); 
 •  Subject has significant stress incontinence or mixed stress/urgency incontinence where stress is the predominant factor as determined by the investigator;
 •  Subject has an indwelling catheter or practices intermittent self-catheterization;
 •  Subject has evidence of urinary tract infection (UTI), chronic inflammation such as interstitial cystitis, bladder stones, previous pelvic radiation therapy or previous or current malignant disease of the pelvic organs;
 •  Subject has had intravesical treatment in the past 12 months with e.g., botulinum toxin, resiniferatoxin, capsaicin; | 
 
 
 | 
| E.5 End points | 
| E.5.1 | Primary end point(s) | 
•  Incidence and severity of treatment emergent adverse events (TEAEs)
 
 Primary Efficacy Variables
 •  Change from baseline in mean number of incontinence episodes per 24 hours at EoT
 •  Change from baseline in mean number of micturitions per 24 hours at EoT | 
 
 
 | 
| E.5.1.1 | Timepoint(s) of evaluation of this end point | 
 | 
| E.5.2 | Secondary end point(s) | 
• Vital signs
 • Laboratory test
 • ECG parameters
 • PVR
 
 | 
 
 
 | 
| E.5.2.1 | Timepoint(s) of evaluation of this end point | 
 | 
| E.6 and E.7 Scope of the trial | 
| E.6 | Scope of the trial | 
| E.6.1 | Diagnosis |  No  | 
| E.6.2 | Prophylaxis |  No  | 
| E.6.3 | Therapy |  Yes  | 
| E.6.4 | Safety |  Yes  | 
| E.6.5 | Efficacy |  Yes  | 
| E.6.6 | Pharmacokinetic |  No  | 
| E.6.7 | Pharmacodynamic |  No  | 
| E.6.8 | Bioequivalence |  No  | 
| E.6.9 | Dose response |  No  | 
| E.6.10 | Pharmacogenetic |  No  | 
| E.6.11 | Pharmacogenomic |  No  | 
| E.6.12 | Pharmacoeconomic |  No  | 
| E.6.13 | Others |  No  | 
| E.7 | Trial type and phase | 
| E.7.1 | Human pharmacology (Phase I) |  No  | 
| E.7.1.1 | First administration to humans |  No  | 
| E.7.1.2 | Bioequivalence study |  No  | 
| E.7.1.3 | Other |  No  | 
| E.7.1.3.1 | Other trial type description |  | 
| E.7.2 | Therapeutic exploratory (Phase II) |  No  | 
| E.7.3 | Therapeutic confirmatory (Phase III) |  Yes  | 
| E.7.4 | Therapeutic use (Phase IV) |  No  | 
| E.8 Design of the trial | 
| E.8.1 | Controlled |  Yes  | 
| E.8.1.1 | Randomised |  Yes  | 
| E.8.1.2 | Open |  No  | 
| E.8.1.3 | Single blind |  No  | 
| E.8.1.4 | Double blind  |  Yes  | 
| E.8.1.5 | Parallel group |  Yes  | 
| E.8.1.6 | Cross over  |  No  | 
| E.8.1.7 | Other |  No  | 
| E.8.2 |  Comparator of controlled trial | 
| E.8.2.1 | Other medicinal product(s) |  Yes  | 
| E.8.2.2 | Placebo  |  No  | 
| E.8.2.3 | Other |  No  | 
| E.8.2.4 | Number of treatment arms in the trial | 3 | 
| E.8.3 | 
                                The trial involves single site in the Member State concerned
                             |  No  | 
| E.8.4 |  The trial involves multiple sites in the Member State concerned  |  Yes  | 
| E.8.4.1 | Number of sites anticipated in Member State concerned | 4 | 
| E.8.5 | The trial involves multiple Member States |  Yes  | 
| E.8.5.1 | Number of sites anticipated in the EEA | 188 | 
| E.8.6 Trial involving sites outside the EEA | 
| E.8.6.1 | Trial being conducted both within and outside the EEA |  Yes  | 
| E.8.6.2 | Trial being conducted completely outside of the EEA |  No  | 
| E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned | 
| Argentina | 
 
| Australia | 
 
| Belgium | 
 
| Brazil | 
 
| Bulgaria | 
 
| Canada | 
 
| Chile | 
 
| China | 
 
| Colombia | 
 
| Czech Republic | 
 
| Denmark | 
 
| Estonia | 
 
| Finland | 
 
| France | 
 
| Germany | 
 
| Greece | 
 
| Hong Kong | 
 
| Hungary | 
 
| India | 
 
| Indonesia | 
 
| Italy | 
 
| Korea, Republic of | 
 
| Latvia | 
 
| Lithuania | 
 
| Malaysia | 
 
| Mexico | 
 
| Netherlands | 
 
| New Zealand | 
 
| Norway | 
 
| Peru | 
 
| Philippines | 
 
| Poland | 
 
| Romania | 
 
| Russian Federation | 
 
| Singapore | 
 
| Slovakia | 
 
| Slovenia | 
 
| South Africa | 
 
| Spain | 
 
| Sweden | 
 
| Taiwan | 
 
| Thailand | 
 
| Turkey | 
 
| Ukraine | 
 
| United Kingdom | 
 
| United States | 
 
 
 | 
| E.8.7 | Trial has a data monitoring committee |  No  | 
| E.8.8 | 
                        Definition of the end of the trial and justification where it is not the last
                        visit of the last subject undergoing the trial
                     | 
 | 
| E.8.9 Initial estimate of the duration of the trial | 
| E.8.9.1 | In the Member State concerned years | 1 | 
| E.8.9.1 | In the Member State concerned months | 7 | 
| E.8.9.1 | In the Member State concerned days | 0 | 
| E.8.9.2 | In all countries concerned by the trial years | 2 | 
| E.8.9.2 | In all countries concerned by the trial months | 1 | 
| E.8.9.2 | In all countries concerned by the trial days | 0 |