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Palliative Management of Inoperable Malignant Bowel Obstruction

Palliative Management of Inoperable Malignant Bowel Obstruction: A Prospective, Open Label, Phase-2 Study at an NCI Comprehensive Cancer Center

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04027348
Enrollment
15
Registered
2019-07-22
Start date
2019-06-26
Completion date
2021-09-03
Last updated
2022-11-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Malignant Bowel Obstruction

Keywords

bowel obstruction

Brief summary

To identify the role of palliative medical management of inoperable malignant bowel obstruction (MBO) with Octreotide, Dexamethasone and Metoclopramide given together as triple therapy.

Interventions

DRUGDexamethasone

Given IV

DRUGMetoclopramide

Given IV

DRUGOctreotide

Given IV

Sponsors

Roswell Park Cancer Institute
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Age ≥ 18 years of age. * Diagnosis of partial bowel obstruction secondary to active or prior malignancy (primary or metastatic GI, GYN, and carcinomatosis) caused either by tumor itself or adhesions inthe setting of active malignancy. * Cross-sectional imaging performed within 24 hours of clinical symptoms of bowel obstruction (nausea, vomiting, and constipation ± abdominal pain) during hospital admission. * Patient must have an inoperable MBO * Participant must understand the investigational nature of this study and sign an Independent Ethics Committee/Institutional Review Board approved writteninformed consent form prior to receiving any study related procedure.

Exclusion criteria

* Evidence of complete bowel obstruction by imaging. * Bacteremia/septicemia with a documented positive blood culture: If a blood culture comes back positive after study enrollment, patient will be excluded. * Patients already taking a steroid equivalent to 8 mg of dexamethasone per day prior to study enrollment. * Patients undergoing bowel surgery or stent placement for bowel obstruction. * Those patients with MBO in setting of incarcerated hernia. * Known history of QT prolongation syndrome or if QTc is \> 450 msec in males or \> 470 msec in females on baseline EKG within 2 weeks of enrollment. * Lack of decision making capacity/delirium. * Pregnant or nursing female participants. * Actively suicidal patients. * Acute cholecystitis

Design outcomes

Primary

MeasureTime frameDescription
Proportion of Patients With Obstruction ClearanceWithin 7 days of starting protocol therapyThe primary efficacy endpoint is the proportion of eligible patients whose malignant bowel obstruction clears (de-obstruction) within 7 days of starting the protocol therapy. Patients meeting de-obstruction criteria within 7 days will be deemed treatment successes. De-obstruction is defined as: * Effective introduction of oral intake (yes/no) * Distinguished from small volumes of oral fluid that may be allowed with unresolved MBO * Tolerating oral liquid diet (day 1 of de-obstruction) that is able to be progressively more solid (oral or enteral) * Cessation of vomiting or ability for NGT or venting G tube to remain clamped without vomiting Rate of de-obstruction is defined as: \- From the date of study enrollment to the first observation of de-obstruction.

Countries

United States

Participant flow

Participants by arm

ArmCount
Treatment (Octreotide, Dexamethasone, Metoclopramide)
IV octreotide 300 mcg TID + IV dexamethasone 4 mg BID (first dose 9am and second at 2pm) + IV metoclopramide 10 mg q6h. Dexamethasone: Given IV Metoclopramide: Given IV Octreotide: Given IV
15
Total15

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyAdverse Event2

Baseline characteristics

CharacteristicTreatment (Octreotide, Dexamethasone, Metoclopramide)
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
6 Participants
Age, Categorical
Between 18 and 65 years
9 Participants
Age, Continuous57.6 years
STANDARD_DEVIATION 13.8
Performance Status64.7 units on a scale
STANDARD_DEVIATION 18.9
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
0 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
2 Participants
Race (NIH/OMB)
White
13 Participants
Region of Enrollment
United States
15 participants
Sex: Female, Male
Female
8 Participants
Sex: Female, Male
Male
7 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
13 / 15
other
Total, other adverse events
11 / 15
serious
Total, serious adverse events
6 / 15

Outcome results

Primary

Proportion of Patients With Obstruction Clearance

The primary efficacy endpoint is the proportion of eligible patients whose malignant bowel obstruction clears (de-obstruction) within 7 days of starting the protocol therapy. Patients meeting de-obstruction criteria within 7 days will be deemed treatment successes. De-obstruction is defined as: * Effective introduction of oral intake (yes/no) * Distinguished from small volumes of oral fluid that may be allowed with unresolved MBO * Tolerating oral liquid diet (day 1 of de-obstruction) that is able to be progressively more solid (oral or enteral) * Cessation of vomiting or ability for NGT or venting G tube to remain clamped without vomiting Rate of de-obstruction is defined as: \- From the date of study enrollment to the first observation of de-obstruction.

Time frame: Within 7 days of starting protocol therapy

Population: 2 Patients did not complete treatment and were not evaluated for de-obstruction (due to AEs).

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Treatment (Octreotide, Dexamethasone, Metoclopramide)Proportion of Patients With Obstruction Clearance10 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026