NCT03119584

Brief Summary

Study includes 5 visits, when all basic clinical information, vital signs, symptoms, and side effects are going to be assessed at each appointment. Patients are going to be assigned by the computer, to receive an active or non-active drug for 14 days in a first phase. The order will be change during the second phase. The 2 weeks break without our medication will separate these phases. A very close observation regarding safety of our subjects will be implemented by study personnel and clinical investigators.

Trial Health

55
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
23

participants targeted

Target at below P25 for phase_4

Timeline
Completed

Started Sep 2015

Longer than P75 for phase_4

Geographic Reach
1 country

1 active site

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 1, 2015

Completed
1.6 years until next milestone

First Submitted

Initial submission to the registry

April 13, 2017

Completed
5 days until next milestone

First Posted

Study publicly available on registry

April 18, 2017

Completed
7.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 30, 2024

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

January 30, 2025

Completed
Last Updated

February 14, 2024

Status Verified

February 1, 2024

Enrollment Period

9.2 years

First QC Date

April 13, 2017

Last Update Submit

February 12, 2024

Conditions

Keywords

chronic constipationdiabetes

Outcome Measures

Primary Outcomes (1)

  • Improvement in frequency of bowel movements

    The primary outcome measure will indicate improvement in frequency of bowel movements (BMs) or not in a mean of available and recordered spontaneous BM (SBMs) over the 28 day treatment period compared to 28 days of placebo.

    Up to 10 weeks

Study Arms (2)

1)28days of linaclotide or placebo

ACTIVE COMPARATOR

patient will be randomized and allocated to one of the treatment arms using computerized generated simple random number in a double-blinded fashion for 28 days of therapy with the study drug, linaclotide or placebo. Patients, and trial personnel involve (other than biostatistician) in this study will not be aware of the group assignments. Patients, treatment providers and staffs will be kept blinded in this study.

Drug: linaclotide or placebo

2)28days of linaclotide or placebo

ACTIVE COMPARATOR

patient will be randomized and allocated to one of the treatment arms using computerized generated simple random number in a double-blinded fashion for 28 days of therapy with the study drug, linaclotide or placebo. Patients, and trial personnel involve (other than biostatistician) in this study will not be aware of the group assignments. Patients, treatment providers and staffs will be kept blinded in this study.

Drug: linaclotide or placebo

Interventions

Also known as: Linzess
1)28days of linaclotide or placebo2)28days of linaclotide or placebo

Eligibility Criteria

Age18 Years - 70 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Type II diabetics.
  • Functional Constipation defined by Rome III criteria are as follows: a. At least a 6 months history of constipation.
  • b. Less than three spontaneous bowel movements (SBMs) per week. c. At least 25% of stools are lumpy or hard stools as it is described in Bristol Stool Form Scale (BSFS) less than score of 6.
  • d. Sensation of incomplete evacuation following at least 25% of bowel movements.
  • e. Straining on at least 25% of defecations. f. Sensation of anorectal obstruction/blockage for at least 25% of defecations.
  • Note: The above criteria are only applicable to spontaneous bowel movements. Patients who have no spontaneous bowel movements (bowel movements are preceded by laxative intake) are considered constipated and are eligible for this study.
  • For patients' ≥ 50 years of age, normal colonic anatomy as documented by colonoscopy or double-contrast barium enema, performed within the previous 5 years, based on the American Gastroenterological Association guidelines.
  • Patients with confirm diagnosis of Diabetic Autonomic Neuropathy based on results of ANX 3.0, real-time ANS monitoring system will be included in this investigation.
  • Patients diagnosed with diabetic peripheral neuropathy and/or symptoms of functional gastroduodenal disorders, such as GERD and functional dyspepsia may participate in a study.

You may not qualify if:

  • Pregnancy or lactation
  • Subjects unwilling to practice adequate contraception throughout the period of screening through 14 days after study termination.
  • Loose or watery stools reported in the absence of laxatives for \>25% of BMs during the screening period by using Bristol Stool Form Scale (BSFS).
  • Use of laxatives 3 days immediately prior to randomization (except fiber or bulking agents) and chronic laxative use during the trial.
  • Patients diagnosed with severe, drug refractory gastroparesis (persistent daily vomiting), currently receiving parenteral feeding (N-G, J-G-Tubes), having history of frequent hospitalizations, or being implanted with gastric neurostimulation system.
  • Use of any of the following drugs within 3 days prior randomization and during the trial: a. Prokinetic agents (domperidone, metoclopramide, erythromycin).
  • b. Medication containing opiates. c. Anti-spasmodic (e.g. Atropine, hyoscamine, scopolamine, glycopyrrolate).
  • Hemoglobin A1c\>8.2
  • Use of illegal drugs.
  • Regular consumption of more than 2 drinks of alcohol per day
  • Chronic, more than 3/week use of NSAIDs.
  • Patients with prolonged straining/push during BMs suggesting severe pelvic floor dysfunction.
  • History or current diagnosis of diverticulitis and severe hemorrhoids.
  • History of gastric resections, partial colon resection, history of rectocele.
  • Existence of any major medical condition such as malignancy, severe renal and liver diseases, which in the decision of PI should be excluded from participation.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Texas Tech University Health Sciences Center

El Paso, Texas, 79905, United States

Location

MeSH Terms

Conditions

Diabetes Mellitus

Interventions

linaclotide

Condition Hierarchy (Ancestors)

Glucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesEndocrine System Diseases

Study Officials

  • Irene Sarosiek, MD

    Texas Tech University Health Sciences Center- El Paso, Texas

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor of Medicine

Study Record Dates

First Submitted

April 13, 2017

First Posted

April 18, 2017

Study Start

September 1, 2015

Primary Completion

October 30, 2024

Study Completion

January 30, 2025

Last Updated

February 14, 2024

Record last verified: 2024-02

Data Sharing

IPD Sharing
Will not share

Locations