| E.1 Medical condition or disease under investigation | 
| E.1.1 | Medical condition(s) being investigated  | 
| Healthy volunteers | 
 
| Terveitä vapaaehtoisia | 
 
 
 | 
| MedDRA Classification | 
| 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 study how PXR activation by rifampicin affects blood pressure regulation.  | 
 
| Tutkimus selvittää miten rifampisiinin aiheuttama PXR-aktivaatio vaikuttaa verenpaineen säätelyyn.  | 
 
 
 | 
| E.2.2 | Secondary objectives of the trial  |  | 
| E.2.3 | Trial contains a sub-study  |  No  | 
| E.3 | Principal inclusion criteria  | 
o	Healthy volunteers
 o	18-40 years of age
 o	Body mass index (BMI) 19-30 kg/m2
 o	Systolic blood pressure 95–140 mmHg
 
 | 
 
o	Terveitä vapaaehtoisia 
 o	18-40 vuotiaita
 o	Painoindeksi (BMI) 19-30 kg/m2
 o	Systolinen verenpaine 95–140 mmHg
 
 | 
 
 
 | 
| E.4 | Principal exclusion criteria | 
o	Diastolic blood pressure over 90 mmHg 
 o	Any continuous medication (hormonal intrauterine device is permitted)
 o	Any significant medical condition
 o	Insensitivity to rifampicin
 o	Pregnancy and lactation
 o	Previous difficult venipuncture
 o	Alcohol and medicine abuse and drug use
 o	Participation to any other pharmaceutical trial within on month of screening | 
 
o	Diastolinen verenpaine yli 90 mmHg 
 o	Säännöllinen lääkitys (hormonikierukka sallittu)
 o	Merkittävät sairaudet 
 o	Yliherkkyys rifampisiinille
 o	Raskaus ja imetys
 o	Aiemmat vaikeat verinäytteen otot
 o	Lääkkeiden ja alkoholin väärinkäyttö ja huumeiden käyttö
 o	Osallistuminen muuhun lääketutkimukseen 1 kk sisällä ennen tutkimuksen alkua
 
 | 
 
 
 | 
| E.5 End points | 
| E.5.1 | Primary end point(s) | 
Changes in 24-hr ambulatory systolic and diastolic blood pressure and pulse.
 Changes in office systolic and diastolic blood pressure and pulse. | 
 
Muutokset 24h-verenpaineseurannassa (systolinen ja diastoline verenpaine ja syke).
 Muutokset verenpaineen kertamittauksissa (systolinen ja diastoline verenpaine ja syke) | 
 
 
 | 
| E.5.1.1 | Timepoint(s) of evaluation of this end point | 
| At the end of both arms on Day 8 after the one-week treatment. | 
 
| Jokaisen tutkimushaaran lopussa eli viikon lääkityksen jälkeen päivänä 8. | 
 
 
 | 
| E.5.2 | Secondary end point(s) | 
| Plasma renin activity and serum aldosterone level. | 
 
| Plasman reniiniaktiivisuus ja seerumin aldosteronitaso | 
 
 
 | 
| E.5.2.1 | Timepoint(s) of evaluation of this end point | 
| At the end of both arms on Day 9. | 
 
| Kummankin tutkimushaaran lopussa tutkimusjakson päivänä 9. | 
 
 
 | 
| 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 |  No  | 
| E.6.4 | Safety |  Yes  | 
| E.6.5 | Efficacy |  No  | 
| E.6.6 | Pharmacokinetic |  No  | 
| E.6.7 | Pharmacodynamic |  Yes  | 
| 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) |  No  | 
| E.7.4 | Therapeutic use (Phase IV) |  Yes  | 
| 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 |  Yes  | 
| E.8.1.4 | Double blind  |  No  | 
| E.8.1.5 | Parallel group |  No  | 
| E.8.1.6 | Cross over  |  Yes  | 
| E.8.1.7 | Other |  No  | 
| E.8.2 |  Comparator of controlled trial | 
| E.8.2.1 | Other medicinal product(s) |  No  | 
| E.8.2.2 | Placebo  |  Yes  | 
| E.8.2.3 | Other |  No  | 
| E.8.2.4 | Number of treatment arms in the trial | 2 | 
| E.8.3 | 
                                The trial involves single site in the Member State concerned
                             |  Yes  | 
| E.8.4 |  The trial involves multiple sites in the Member State concerned  |  No  | 
| E.8.5 | The trial involves multiple Member States |  No  | 
| E.8.6 Trial involving sites outside the EEA | 
| E.8.6.1 | Trial being conducted both within and outside the EEA |  No  | 
| E.8.6.2 | Trial being conducted completely outside of the EEA |  No  | 
| 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 | 2 | 
| E.8.9.1 | In the Member State concerned months |  | 
| E.8.9.1 | In the Member State concerned days |  | 
| E.8.9.2 | In all countries concerned by the trial years | 2 |