NCT04951726

Brief Summary

Neostigmine is commonly used for medical treatment of acute colonic pseudo obstruction, however, the ideal route of administration has not been determined. Though IV push works rapidly, it is likely associated with the most side effects. This study will compare the efficacy and side effect profile of 2 potential routes of administration: IV push and subcutaneous.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
90

participants targeted

Target at P50-P75 for phase_4

Timeline
Completed

Started Feb 2022

Longer than P75 for phase_4

Geographic Reach
1 country

1 active site

Status
unknown

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

May 5, 2021

Completed
2 months until next milestone

First Posted

Study publicly available on registry

July 7, 2021

Completed
7 months until next milestone

Study Start

First participant enrolled

February 4, 2022

Completed
3.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 1, 2025

Completed
Last Updated

August 25, 2023

Status Verified

August 1, 2023

Enrollment Period

3.5 years

First QC Date

May 5, 2021

Last Update Submit

August 24, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • Number of patients with radiographic resolution of colonic pseudo obstruction

    Number of patients who have cecal diameter \<9 cm AND transverse diameter \<6 cm on abdominal x-ray within 24h of initiation of neostigmine therapy.

    24 hours

Secondary Outcomes (2)

  • Number of patients with recurrence of colonic pseudo obstruction

    7 days

  • Number of patients with adverse medication reactions

    24 hours

Study Arms (2)

IV push

ACTIVE COMPARATOR

2 mg slow intravenous injection over five minutes repeated q12hr until resolution for up to 24 hours. (4 mg total in 24 hours)

Drug: Neostigmine

subcutaneous

EXPERIMENTAL

1.0 mg subcutaneous repeated q8hr until resolution for up to 24 hours (3.0 mg total in 24 hours)

Drug: Neostigmine

Interventions

cholinesterase inhibitor

Also known as: Bloxierz, Vagostigmin, Prostigmin
IV pushsubcutaneous

Eligibility Criteria

Age16 Years+
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Patients with radiologically confirmed acute colonic pseudo obstruction (ACPO).
  • Plain abdominal radiograph or computed tomography imaging
  • Cecal diameter of \>9 cm or transverse colon diameter of \>6 cm
  • Distal obstruction ruled out on imaging (Contrast enema, endoscopy, CT scan)

You may not qualify if:

  • Patients with previous neostigmine administration during current hospitalization
  • Patients with prior attempt at endoscopic decompression on this admission.
  • Patients with base-line heart rate of less than 60 beats per minute or on beta blocker medication
  • Patients with systolic blood pressure of less than 90 mm Hg
  • Signs of bowel perforation, with peritoneal signs on physical examination or free air on radiographs
  • Active bronchospasm requiring medication
  • Treatment with prokinetic drugs such as cisapride or metoclopramide in the 24 hours before evaluation
  • A history of colon cancer or partial colonic resection
  • Signs concerning for colonic obstruction
  • Active gastrointestinal bleeding
  • Pregnancy
  • Serum creatinine concentration of more than 3 mg per deciliter (265μmol per liter).

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Los Angeles University of Southern California Medical Center

Los Angeles, California, 90004, United States

RECRUITING

Related Publications (8)

  • DeMets DL, Lan KK. Interim analysis: the alpha spending function approach. Stat Med. 1994 Jul 15-30;13(13-14):1341-52; discussion 1353-6. doi: 10.1002/sim.4780131308.

    PMID: 7973215BACKGROUND
  • Frankel A, Gillespie C, Lu CT, Hewett P, Wattchow D. Subcutaneous neostigmine appears safe and effective for acute colonic pseudo-obstruction (Ogilvie's syndrome). ANZ J Surg. 2019 Jun;89(6):700-705. doi: 10.1111/ans.15265. Epub 2019 May 13.

    PMID: 31083785BACKGROUND
  • Ponec RJ, Saunders MD, Kimmey MB. Neostigmine for the treatment of acute colonic pseudo-obstruction. N Engl J Med. 1999 Jul 15;341(3):137-41. doi: 10.1056/NEJM199907153410301.

    PMID: 10403850BACKGROUND
  • Kram B, Greenland M, Grant M, Campbell ME, Wells C, Sommer C. Efficacy and Safety of Subcutaneous Neostigmine for Ileus, Acute Colonic Pseudo-obstruction, or Refractory Constipation. Ann Pharmacother. 2018 Jun;52(6):505-512. doi: 10.1177/1060028018754302. Epub 2018 Jan 23.

    PMID: 29359574BACKGROUND
  • Ilban O, Cicekci F, Celik JB, Bas MA, Duman A. Neostigmine treatment protocols applied in acute colonic pseudo-obstruction disease: A retrospective comparative study. Turk J Gastroenterol. 2019 Mar;30(3):228-233. doi: 10.5152/tjg.2018.18193.

    PMID: 30541715BACKGROUND
  • van der Spoel JI, Oudemans-van Straaten HM, Stoutenbeek CP, Bosman RJ, Zandstra DF. Neostigmine resolves critical illness-related colonic ileus in intensive care patients with multiple organ failure--a prospective, double-blind, placebo-controlled trial. Intensive Care Med. 2001 May;27(5):822-7. doi: 10.1007/s001340100926.

    PMID: 11430537BACKGROUND
  • Sgouros SN, Vlachogiannakos J, Vassiliadis K, Bergele C, Stefanidis G, Nastos H, Avgerinos A, Mantides A. Effect of polyethylene glycol electrolyte balanced solution on patients with acute colonic pseudo obstruction after resolution of colonic dilation: a prospective, randomised, placebo controlled trial. Gut. 2006 May;55(5):638-42. doi: 10.1136/gut.2005.082099. Epub 2005 Nov 23.

    PMID: 16306137BACKGROUND
  • Vogel JD, Feingold DL, Stewart DB, Turner JS, Boutros M, Chun J, Steele SR. Clinical Practice Guidelines for Colon Volvulus and Acute Colonic Pseudo-Obstruction. Dis Colon Rectum. 2016 Jul;59(7):589-600. doi: 10.1097/DCR.0000000000000602. No abstract available.

    PMID: 27270510BACKGROUND

MeSH Terms

Conditions

Colonic Pseudo-Obstruction

Interventions

Neostigmine

Condition Hierarchy (Ancestors)

Colonic Diseases, FunctionalColonic DiseasesIntestinal DiseasesGastrointestinal DiseasesDigestive System DiseasesIntestinal Pseudo-ObstructionIleusIntestinal Obstruction

Intervention Hierarchy (Ancestors)

Phenylammonium CompoundsQuaternary Ammonium CompoundsAminesOrganic ChemicalsOnium Compounds

Study Officials

  • Meghan Lewis, MD

    University of Southern California

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Jordan Wlodarczyk, md

CONTACT

Meghan Lewis, MD

CONTACT

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Prospective randomized non-inferiority trial 2 Arms: 1. 1.0 mg subcutaneous repeated q8hr until resolution for up to 24 hours (3.0 mg total in 24 hours) 2. 2 mg slow intravenous injection over five minutes repeated q6hr until resolution for up to 24 hours. (8 mg total in 24 hours) (CONTROL GROUP)
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Professor of Clinical Surgery

Study Record Dates

First Submitted

May 5, 2021

First Posted

July 7, 2021

Study Start

February 4, 2022

Primary Completion

August 1, 2025

Study Completion

August 1, 2025

Last Updated

August 25, 2023

Record last verified: 2023-08

Data Sharing

IPD Sharing
Will not share

Locations