Managing Medication-induced Constipation in Cancer: A Clinical Trial

The purpose of this research is to evaluate the effectiveness of the Constipation Treatment Protocol and to test whether management according to dose of constipation-inducing medications or according to on-going assessment is most effective.

Study Overview

Detailed Description

Patients will undergo a baseline assessment during their regular outpatient visit. With their permission, the investigators will audio record this visit for quality control. After the study, the recordings will be erased. Patients will be asked to complete 4 questionnaires. The investigators will collect contact information so that the follow-up assessments can be done by phone.

Study Type

Interventional

Enrollment (Actual)

601

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Florida
      • Tampa, Florida, United States, 33612
        • H. Lee Moffitt Cancer Center and Research Institute

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • The study sample will consist of patients who are receiving outpatient care at the Moffitt Cancer Center.
  • Patients will be identified as those who have a diagnosis of cancer and are being treated with either opioids or vinca alkaloids,
  • are adults (or children 18-21 years old),
  • either male or female,
  • able to read and understand English,
  • and able to pass screening with the Short Portable Mental Status Questionnaire and Karnofsky Performance Status Scale.

Exclusion Criteria:

  • Patients will be excluded: if they have non-melanoma skin cancer or colorectal or gynecological cancer as their primary diagnosis;
  • if they are excessively debilitated or deemed unlikely to survive for the eight weeks of the data collection period;
  • if they are unable to read and understand English;
  • if they have an ostomy that changes bowel function;
  • if they have a current peritoneal catheter;
  • if they have had abdominal surgery within the past six weeks;
  • or have a disease process suggestive of mechanical obstruction (tumor or adhesion);
  • if they have a history of chronic bowel disease (including irritable bowel syndrome, chronic constipation prior to cancer onset, Crohn's disease, ulcerative colitis or diarrhea as a result of radiation to the pelvis), or report chronic laxative use prior to cancer onset.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Supportive Care
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Dose Intervention - Opioid
Laxative Treatment: Participants Receiving Opioids for the Treatment of Pain. Participants will be taken off any laxative preparation they may already be on and will be put on laxative treatment based on the Constipation Treatment Protocol. The dose of laxative will be based on the dose of the opioid pain medication they are receiving.
Participants will be taken off any laxative preparation they may already be on. Patients will be put on laxative treatment based on the Constipation Treatment Protocol.
Other Names:
  • constipation treatment
Constipation Assessment Scale (CAS), Laxative Interview (based on Laxative Diary completed by patients), Memorial Symptom Assessment Scale (MSAS), Functional Assessment of Cancer Therapy-General (FACT-G).
Active Comparator: Assessment Intervention - Opioid
Laxative Treatment: Participants Receiving Opioids for the Treatment of Pain. Participants will be taken off any laxative preparation they may already be on and will be put on laxative treatment based on the Constipation Treatment Protocol. The dose of laxative will be determined based on their severity of constipation.
Participants will be taken off any laxative preparation they may already be on. Patients will be put on laxative treatment based on the Constipation Treatment Protocol.
Other Names:
  • constipation treatment
Constipation Assessment Scale (CAS), Laxative Interview (based on Laxative Diary completed by patients), Memorial Symptom Assessment Scale (MSAS), Functional Assessment of Cancer Therapy-General (FACT-G).
Other: Control Group - Opioid
Standard of Care: Participants Receiving Opioids for the Treatment of Pain will receive their usual care at Moffitt while participating in weekly assessments. After participation in the study is complete, participants will be offered the same protocol that is given to patients in the treatment groups.
Constipation Assessment Scale (CAS), Laxative Interview (based on Laxative Diary completed by patients), Memorial Symptom Assessment Scale (MSAS), Functional Assessment of Cancer Therapy-General (FACT-G).
Participants will receive their usual care at Moffitt while participating in weekly assessments. After participation in the study is complete, participants will be offered the same protocol that is given to patients in the treatment groups.
Active Comparator: Assessment Intervention - Vinca Alkaloid
Laxative Treatment: Participants Receiving a Specific Type of Chemotherapy (vinca alkaloids). Vinca alkaloids include medication such as Vincristine, Vinblastine, or Vinorelbine. Participants will be taken off any laxative preparation they may already be on and will be put on laxative treatment based on the Constipation Treatment Protocol. The dose of laxative will be based on their level of constipation.
Participants will be taken off any laxative preparation they may already be on. Patients will be put on laxative treatment based on the Constipation Treatment Protocol.
Other Names:
  • constipation treatment
Constipation Assessment Scale (CAS), Laxative Interview (based on Laxative Diary completed by patients), Memorial Symptom Assessment Scale (MSAS), Functional Assessment of Cancer Therapy-General (FACT-G).
Other: Control Group - Vinca Alkaloid
Standard of Care: Participants Receiving a Specific Type of Chemotherapy (vinca alkaloids). Vinca alkaloids include medication such as Vincristine, Vinblastine, or Vinorelbine. Patients will receive standard of care while participating in weekly assessments. After participation in the study is complete, participants will be offered the same protocol that is given to patients in the treatment groups.
Constipation Assessment Scale (CAS), Laxative Interview (based on Laxative Diary completed by patients), Memorial Symptom Assessment Scale (MSAS), Functional Assessment of Cancer Therapy-General (FACT-G).
Participants will receive their usual care at Moffitt while participating in weekly assessments. After participation in the study is complete, participants will be offered the same protocol that is given to patients in the treatment groups.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Phase I - Record Constipation Incidence and Symptoms
Time Frame: 18 months

To identify the incidence, severity, distress and trajectory of constipation in cancer patients receiving opioids over an eight week period and to evaluate the relationships between constipation intensity and opioid dose.

To identify the incidence, severity, distress and trajectory of constipation in groups of cancer patients who may be at risk due to vinca alkaloids (vincristine. vinblastine. vinorelbine and vindesine) over an eight week period and to evaluate the relationship between constipation intensity and vinca alkaloid dose.

18 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Phase II - Number of Participants With Desired Effect - Patients with Medication-induced Constipation
Time Frame: 2 years, 3 months
To test the efficacy of a Constipation Treatment Protocol in patients with medication-induced constipation.
2 years, 3 months
Phase II - Best Determination of Laxative Dose - Patients with Medication-induced Constipation
Time Frame: 2 years, 3 months

To test whether laxative dose is best determined based on on-going assessment or on opioid dose.

To test whether laxative dose is best determined based on on-going assessment or on vinca alkaloid dose.

2 years, 3 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Susan McMillan, Ph.D., RN, University of South Florida

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

November 1, 2008

Primary Completion (Actual)

August 1, 2013

Study Completion (Actual)

January 1, 2014

Study Registration Dates

First Submitted

August 11, 2011

First Submitted That Met QC Criteria

August 12, 2011

First Posted (Estimate)

August 15, 2011

Study Record Updates

Last Update Posted (Actual)

February 23, 2017

Last Update Submitted That Met QC Criteria

February 21, 2017

Last Verified

March 1, 2015

More Information

Terms related to this study

Other Study ID Numbers

  • MCC-15712

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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