Comparison of Creatinine Clearance Calculation for Estimation of GFR in Patients Receiving HD Methotrexate

January 18, 2019 updated by: Audrea Szabatura, Dana-Farber Cancer Institute

Comparison of Creatinine Clearance Calculation Methods for Estimation of Glomerular Filtration Rate in Patients Receiving High-Dose Methotrexate

The purpose of this study is to compare different estimates of calculating creatinine clearance by mathematical formula and compare them to creatinine clearance based on a timed urine collection in patients who received high-dose methotrexate for the treatment of primary CNS lymphoma or CNS involvement of systemic lymphoma.

Study Overview

Detailed Description

We intend to perform a retrospective chart review to identify a serum creatinine-based equation that gives the best estimate of CrCl as compared with an equation derived from a 24-hour urine collection.

Study subjects will be identified using the Brigham and Women's Hospital and Dana-Farber Cancer Institute's Adult Pharmacy systems to identify patients who received high-dose methotrexate. Data will be collected starting with December 31, 2010 and proceeding chronologically backwards until the target enrollment of 40 patients is reached.

Study Type

Observational

Enrollment (Anticipated)

40

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

    • Massachusetts
      • Boston, Massachusetts, United States, 02215
        • Dana-Farber Cancer 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

Sampling Method

Non-Probability Sample

Study Population

Patients receiving high-dose methotrexate therapy at Dana-Farber Cancer Institute/Brigham and Women's Hospital

Description

Inclusion Criteria:

  • Age >/= 18 years
  • Received high-dose methotrexate therapy at Dana-Farber Cancer Institute/Brigham and Women's Hospital for the treatment of primary CNS lymphoma or CNS involvement of systemic lymphoma
  • Available timed urine collection within 1 week of HDMTX

Exclusion Criteria:

  • Receiving high-dose methotrexate for indications other than primary CNS lymphoma or CNS involvement of systemic lymphoma
  • Documented viral hepatitis

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

  • Observational Models: Cohort
  • Time Perspectives: Retrospective

Cohorts and Interventions

Group / Cohort
CNS lymphoma patients

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
To identify a serum creatinine-based equation that gives the best estimate of CrCl as compared to a measured creatinine clearance formula.
Time Frame: 1 year
Serum creatinine-based equations to be included in that analysis are: Cockcroft-Gault with the following weight descriptors; ideal body weight, actual body weight, and adjusted body weight; Modified MDRD; CKD-EPI.
1 year

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
To further compare each formula in a different subset of patients.
Time Frame: 1 year
To further compare each formula in a different subset of patients: Age < 65 years and >/= 65 years; body mass index < 25, 25-30, 30-35, and > 35; serum creatinine <1.5 mg/dL and >/= 1.5 mg/dL.
1 year

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Audrea H Szabatura, PharmD, BCOP, Dana-Farber Cancer Institute

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

March 1, 2011

Primary Completion (Actual)

August 1, 2014

Study Completion (Actual)

September 1, 2017

Study Registration Dates

First Submitted

March 18, 2011

First Submitted That Met QC Criteria

March 18, 2011

First Posted (Estimate)

March 21, 2011

Study Record Updates

Last Update Posted (Actual)

January 22, 2019

Last Update Submitted That Met QC Criteria

January 18, 2019

Last Verified

January 1, 2019

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

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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