E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
chronic constipation |
estreñimiento cronico |
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E.1.1.1 | Medical condition in easily understood language |
chronic constipation |
estreñimiento cronico |
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E.1.1.2 | Therapeutic area | Body processes [G] - Digestive System and Oral Physiological Phenomena [G10] |
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 assess whether 5HT4 agonist (prucalopride at a dose of 2 mg/day) increases the gastrocolic reflex in patients with chronic constipation. |
Evaluar si la prucaloprida (dosis de 2 mg) induce un mayor aumento del tono rectal postprandial que en condiciones fisiológicas. |
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E.2.2 | Secondary objectives of the trial |
- To assess whether there is a relationship between the magnitude of increased CCK levels and that of the gastrocolic reflex under physiological conditions in patients with chronic constipation.
- To assess whether there is a temporal relationship between CCK levels and the duration of the gastrocolic reflex under physiological conditions in patients with chronic constipation.
- To assess whether 5HT4 agonist (prucalopride 2 mg/day) induces a greater increase in postprandial serum levels of cholecystokinin in patients with chronic constipation.
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Evaluar si existe una relación entre la magnitud de aumento de los niveles de CCK y la magnitud del reflejo gastrocólico en condiciones fisiológicas.
Evaluar si existe una relación temporal entre los niveles de CCK y la duración del reflejo gastrocólico en condiciones fisiológicas.
Evaluar si prucaloprida (2 mg) induce un mayor aumento de los niveles séricos de colecistoquinina postprandiales.
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
>18 and <65 years of age
Ability to communicate appropriately
Meeting the Rome III criteria for functional chronic constipation
Having an approved indication for the clinical use of prucalopride
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- Género femenino
-Tener una edad > 18 años y menor de 65
-Capacidad adecuada para comunicarse
-Cumplir los criterios Roma III para estreñimiento crónico funcional
-Refractariedad a tratamiento con laxantes.
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E.4 | Principal exclusion criteria |
Existence of any relevant organic and/or systemic disease
Use of medication(s) known to interfere with gastrointestinal motility
Cases in which constipation is secondary to drugs or systemic disease(s).
Inability to sign informed consent
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- Género masculino.
-Existencia de alguna enfermedad orgánica y/o sistémica relevante.
-Consumo de medicación que interfiera en la motilidad gastrointestinal (procinéticos, laxantes, antidiarreicos y espamolíticos). No deben haberlos consumido al menos 2 semanas previas a la fecha de inclusión en el estudio.
- Estreñimiento secundario a fármacos o enfermedades sistémicas.
- Embarazo o lactancia.
-Incapacidad para firmar el consentimiento informado
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E.5 End points |
E.5.1 | Primary end point(s) |
Gastrocolic reflex: defined as the decrease in rectal volume produced after eating. This is quantified as follows:
Magnitude: defined as the percentage of volume decrease in the first half-hour after eating with respect to the volume 30 minutes prior to food intake.
Duration: defined as the time necessary to recover 50% of the decrease in rectal volume after food intake, with a maximum of 2 hours.
Gastrocolic reflex stimulation: defined as the increase in serum CCK levels after food intake, evaluating the maximum concentration achieved and the time to maximum concentration
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Magnitud del reflejo gastrocólico: se define como el porcentaje de disminución del volumen rectal en la primera media hora tras la ingesta respecto a la media hora previa a la ingesta.
Duración del reflejo gastrocólico: se define como el tiempo necesario para recuperar el 50% de la disminución del volumen rectal tras la ingesta, con un máximo de 2 horas.
Se evaluará el reflejo gastrocólico mediante la realización de estudio del tono rectal con baróstato electrónico (cambios en el tono basal pre y postingesta) y determinación de los niveles sanguíneos de colecistoquinina (niveles pre y postingesta) a través de analítica
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
baseline appointment and at the end of the first week |
al inicio del paciente en el estudio y una semana después |
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E.5.2 | Secondary end point(s) |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
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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 | 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) | 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 | No |
E.8.1.2 | Open | Yes |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | No |
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) | No |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | Yes |
E.8.2.3.1 | Comparator description |
situacion fisiologica del paciente |
patients physiological conditions |
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E.8.2.4 | Number of treatment arms in the trial | 1 |
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 | Yes |
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
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LVLS |
Se considerará el final del ensayo clínico la última visita que realice el último sujeto que haya sido incluido en el estudio |
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 0 |
E.8.9.1 | In the Member State concerned months | 3 |
E.8.9.1 | In the Member State concerned days | 0 |