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Efficacy and Tolerability of a Simethicone-containing Evacuating Solution for Colorectal Cancer Screening Colonoscopy (CLEAN+)

6 de julio de 2026 actualizado por: Fundacion Clinic per a la Recerca Biomédica

Efficacy and Tolerability of a Simethicone-containing Evacuating Solution for Colorectal Cancer Screening Colonoscopy: a Randomized Parallel Comparative Trial CLEAN+

Study to evaluate the efficacy and tolerability of a simethicone-containing evacuating solution for colorectal cancer screening colonoscopy.

Descripción general del estudio

Estado

Reclutamiento

Condiciones

Intervención / Tratamiento

Tipo de estudio

Intervencionista

Inscripción (Estimado)

818

Fase

  • Fase 4

Contactos y Ubicaciones

Esta sección proporciona los datos de contacto de quienes realizan el estudio e información sobre dónde se lleva a cabo este estudio.

Estudio Contacto

  • Nombre: Maria Pellisé
  • Número de teléfono: +34 932275400
  • Correo electrónico: MPELLISE@clinic.cat

Copia de seguridad de contactos de estudio

Ubicaciones de estudio

  • España
    • Barcelona
      • Barcelona, Barcelona, España, 08036
        • Reclutamiento
        • Hospital Clinic de Barcelona
        • Investigador principal:
          • Maria Pellisé
        • Contacto:

Criterios de participación

Los investigadores buscan personas que se ajusten a una determinada descripción, denominada criterio de elegibilidad. Algunos ejemplos de estos criterios son el estado de salud general de una persona o tratamientos previos.

Criterio de elegibilidad

Edades elegibles para estudiar

  • Adulto
  • Adulto Mayor

Acepta Voluntarios Saludables

No

Descripción

Inclusion Criteria:

  1. Men and women aged 50 to 69.
  2. Have participated in the early detection program for colorectal cancer.
  3. Positive result in the fecal occult blood test (≥20 μg Hb/g feces).
  4. Scheduled screening colonoscopy at Hospital Clínic de Barcelona.
  5. Signed informed consent form.

Exclusion Criteria:

  1. Severe renal failure (grade IV or V) (Annex 6, Stages of Renal Impairment) and/or congestive heart failure (New York Heart Association Scale Class III and IV) (Annex 7, NYHA Scale).
  2. Colonoscopy within the last year.
  3. Barthel Index of <20 (Annex 5, Barthel Index) and who also meet the Rome IV Criteria for the diagnosis of functional constipation (Annex 8, Rome IV Criteria).
  4. Mental disability or severe mental disorder (schizophrenia and other psychotic disorders, recurrent severe major depressive disorders, severe obsessive-compulsive disorder, severe personality disorders, and bipolar disorders).
  5. Do not understand spoken or written Catalan or Spanish.
  6. Partial or total colon resection.
  7. Personal history of CRC or colorectal pathology that requires specific follow-up (ulcerative colitis, Crohn's disease, or colorectal adenomas).
  8. Terminal illness or serious illness/disability that contraindicates subsequent colon study.
  9. Gastrointestinal disorders that contraindicate the use of study products (gastric emptying disorders, gastrointestinal perforation or obstruction, ileus, toxic megacolon).
  10. Hypermagnesemia.
  11. Rhabdomyolysis.
  12. Phenylketonuria.
  13. Glucose-6-phosphate dehydrogenase deficiency.
  14. Hypersensitivity to the active ingredients of excipients.
  15. Pregnancy or breastfeeding.

Plan de estudios

Esta sección proporciona detalles del plan de estudio, incluido cómo está diseñado el estudio y qué mide el estudio.

¿Cómo está diseñado el estudio?

Detalles de diseño

  • Propósito principal: Diagnóstico
  • Asignación: Aleatorizado
  • Modelo Intervencionista: Asignación paralela
  • Enmascaramiento: Único

Armas e Intervenciones

Grupo de participantes/brazo
Intervención / Tratamiento
Experimental: Clensia®
Clensia®, powder for oral solution in sachet. To be taken in two doses, 4 sachets dissolved in 200cc of water 9-12 hours before the examination and 4 sachets dissolved in 200cc of water 4 hours before the examination.
Droga: Clensia®
Participants will take the treatment in two doses, 4 sachets dissolved in 200cc of water 9-12 hours before the examination and 4 sachets dissolved in 200cc of water 4 hours before the examination.
Experimental: Citrafleet®
Citrafleet®, powder for oral solution in sachet. To be taken in two doses, 1 sachet dissolved in 200cc of water 9-12 hours before the examination and 1 sachet dissolved in 200cc of water 4 hours before the examination.
Droga: Citrafleet®
Participants will take the treatment in two doses, 1 sachet dissolved in 200cc of water 9-12 hours before the examination and 1 sachet dissolved in 200cc of water 4 hours before the examination.

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Adenoma detection rate
Periodo de tiempo: week 2 (Colonoscopy visit)
Adenoma detection rate, defined as the proportion of patients with at least one adenoma in relation to the total number of subjects in each study group (Clensia® Group (Group A); Citrafleet® Group (Group B)).
week 2 (Colonoscopy visit)

Medidas de resultado secundarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Lesion detection rate
Periodo de tiempo: week 2 (Colonoscopy visit)
Lesion detection rate, defined as the proportion of patients with at least one polyp in relation to the total number of subjects in each group.
week 2 (Colonoscopy visit)
Adenomas per colonoscopy
Periodo de tiempo: week 2 (Colonoscopy visit)
Adenomas per colonoscopy, defined as the mean number of adenomas detected by colonoscopy in the subjects in each group.
week 2 (Colonoscopy visit)
Presence of foam
Periodo de tiempo: week 2 (Colonoscopy visit)
The presence of foam using the CEBuS (Colon Endoscopic Bubble Scale), in which each colonic segment (right colon, transverse colon, left colon) is scored from 0 to 2 (0=no or minimal number of bubbles; 1=moderate amount of bubbles affecting 5-50% of the circumference, affecting the vision of the mucosa and requiring additional time to wash; 2=abundant bubbles occupying >50% of the circumference, obscuring the mucosa and require ring additional time to washing).
week 2 (Colonoscopy visit)
Presence of bubbles
Periodo de tiempo: week 2 (Colonoscopy visit)
The presence of bubbles using the CEBuS (Colon Endoscopic Bubble Scale), in which each colonic segment (right colon, transverse colon, left colon) is scored from 0 to 2 (0=no or minimal number of bubbles; 1=moderate amount of bubbles affecting 5-50% of the circumference, affecting the vision of the mucosa and requiring additional time to wash; 2=abundant bubbles occupying >50% of the circumference, obscuring the mucosa and require ring additional time to washing).
week 2 (Colonoscopy visit)
Quality of colon cleansing
Periodo de tiempo: week 2 (Colonoscopy visit)
The quality of colon cleansing using the Boston Scale, in which each colonic segment (right colon, transverse colon, and left colon) is scored from 0 to 3 (0=poor, 1=fair, 2=good, 3=excellent). A total score greater than or equal to 6 and greater than or equal to 2 in each segment will be considered adequate.
week 2 (Colonoscopy visit)
Need for washing tools during colonoscopy
Periodo de tiempo: week 2 (Colonoscopy visit)
Need for washing tools during colonoscopy. The amount of wash water used during the colonoscopy to complete the test satisfactorily is counted. Likewise, the volume of simethicone used will be counted if it is considered necessary.
week 2 (Colonoscopy visit)
Cecal intubation rate
Periodo de tiempo: week 2 (Colonoscopy visit)
Cecal intubation rate. The colonoscopy will be considered complete if the cecum has been reached; otherwise, it will be considered incomplete.
week 2 (Colonoscopy visit)
Cecal intubation time
Periodo de tiempo: week 2 (Colonoscopy visit)
Cecal intubation time. Defined as the time elapsed between the introduction of the endoscope and reaching the cecal fundus.
week 2 (Colonoscopy visit)
Endoscope removal time
Periodo de tiempo: week 2 (Colonoscopy visit)
Endoscope removal time. Defined as the time elapsed between reaching the cecal fundus and completion of the endoscopy, including the time spent cleaning the colon and excluding endoscopic treatment of lesions.
week 2 (Colonoscopy visit)
Requires repeat colonoscopy due to poor preparation
Periodo de tiempo: week 2 (Colonoscopy visit)
Proportion of patients who, after undergoing colonoscopy, require repeat colonoscopy due to poor preparation, defined as a total score of less than 6 or less than 2 in one of the three segments according to the Boston Scale
week 2 (Colonoscopy visit)
Adherence to the intake of the preparation
Periodo de tiempo: week 2 (Colonoscopy visit)
Adherence to the intake of the preparation assessed by compliance with the intake in three degrees: completely, more than 50%, less than 50% or not at all (Tolerability and satisfaction questionnaire).
week 2 (Colonoscopy visit)
Ease of taking the preparation
Periodo de tiempo: week 2 (Colonoscopy visit)
Ease of taking the preparation assessed with a numerical assessment scale from 0=very difficult to 10=very easy (Tolerability and satisfaction questionnaire).
week 2 (Colonoscopy visit)
Palatability of the preparation
Periodo de tiempo: week 2 (Colonoscopy visit)
Palatability of the preparation assessed with a numerical assessment scale from 0=very bad to 10=excellent (Tolerability and satisfaction questionnaire).
week 2 (Colonoscopy visit)
Willingness to repeat the intake of the preparation
Periodo de tiempo: week 2 (Colonoscopy visit)
Willingness to repeat the intake of the preparation assessed as yes or no (Tolerability and satisfaction questionnaire).
week 2 (Colonoscopy visit)
Overall satisfaction with the intake of the preparation
Periodo de tiempo: week 2 (Colonoscopy visit)
Overall satisfaction with the intake of the preparation assessed with a numerical rating scale from 0=very bad to 10=very good (Tolerability and satisfaction questionnaire).
week 2 (Colonoscopy visit)
Endoscopist's satisfaction with the cleaning of faecal remains and bubbles
Periodo de tiempo: week 2 (Colonoscopy visit)
Endoscopist's satisfaction with the cleaning of faecal remains and bubbles, assessed with a numerical assessment scale from 0 = very dissatisfied to 10 = very satisfied (Data collection form).
week 2 (Colonoscopy visit)
Rate of adverse events
Periodo de tiempo: week 2 (Colonoscopy visit) and week 4 (visit 2)
Rate of adverse events including symptoms such as nausea, vomiting, abdominal pain, abdominal bloating, headache, chills, dizziness and dry mouth, which will be assessed in the Tolerability and Satisfaction Questionnaire (Tolerability and Satisfaction Questionnaire).
week 2 (Colonoscopy visit) and week 4 (visit 2)

Colaboradores e Investigadores

Aquí es donde encontrará personas y organizaciones involucradas en este estudio.

Patrocinador

Fundacion Clinic per a la Recerca Biomédica

Fechas de registro del estudio

Estas fechas rastrean el progreso del registro del estudio y los envíos de resultados resumidos a ClinicalTrials.gov. Los registros del estudio y los resultados informados son revisados ​​por la Biblioteca Nacional de Medicina (NLM) para asegurarse de que cumplan con los estándares de control de calidad específicos antes de publicarlos en el sitio web público.

Fechas importantes del estudio

Inicio del estudio (Actual)

18 de mayo de 2026

Finalización primaria (Estimado)

1 de mayo de 2028

Finalización del estudio (Estimado)

1 de mayo de 2028

Fechas de registro del estudio

Enviado por primera vez

26 de septiembre de 2025

Primero enviado que cumplió con los criterios de control de calidad

6 de julio de 2026

Publicado por primera vez (Actual)

10 de julio de 2026

Actualizaciones de registros de estudio

Última actualización publicada (Actual)

10 de julio de 2026

Última actualización enviada que cumplió con los criterios de control de calidad

6 de julio de 2026

Última verificación

1 de julio de 2026

Más información

Términos relacionados con este estudio

Otros números de identificación del estudio

  • 2025-523748-11-00

Información sobre medicamentos y dispositivos, documentos del estudio

Estudia un producto farmacéutico regulado por la FDA de EE. UU.

No

Estudia un producto de dispositivo regulado por la FDA de EE. UU.

No

Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .

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