Sorbent Therapy of the Cutaneous Porphyrias (EPP)

March 14, 2017 updated by: Peter Tishler, Brigham and Women's Hospital
The investigators demonstrated that cholestyramine is an effective binding agent in vitro for porphyrins. A few isolated case reports of treatment of individuals with a cutaneous porphyria suggest that cholestyramine and colestipol effectively remove porphyrins. Hypothesis: orally administered colestipol will effectively reduce sun sensitivity and lower erythrocyte porphyrin concentrations in subjects with erythropoietic protoporphyria (EPP).

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Four adults with proven EPP volunteered as subjects for this study. First period: Subjects received 1 gm colestipol twice daily for ~45 days, then 2 gm twice daily for ~45 days. Labs included CBC; liver chemistries including cholesterol; serum iron, TIBC and ferritin; erythrocyte and plasma protoporphyrin concentrations; and completion of sun exposure questionnaire focused on cutaneous manifestations every 2-4 weeks. Second period: Subjects received colestipol tablets, 2 grams twice daily, completing the sun exposure questionnaire and protoporphyrin determinations ~monthly for 5-6 months.

Study Type

Interventional

Enrollment (Actual)

4

Phase

  • Phase 2
  • Phase 3

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

  • United States
    • Massachusetts
      • Boston, Massachusetts, United States, 02115
        • Brigham & Women's Hospital

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

22 years to 60 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Adult over age 21
  • healthy

Exclusion Criteria:

  • Intercurrent illness
  • pregnancy

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: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: colestipol treatment
2 grams morning and bedtime for 180 days
Drug: Colestipol
2 grams morning and bedtime for 90 days.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Photosensitivity, Assessed by Measuring the Number of Minutes of Sun Tolerance
Time Frame: At 60 days of treatment
Minutes of sun tolerance
At 60 days of treatment
Protoporphyrin Concentration in Blood
Time Frame: Samples collected while on treatment (range 93-208 treatment days)
  1. erythrocyte protoporphyrin concentration, ug/dl
  2. plasma protoporphyrin concentration, ug/dl
Samples collected while on treatment (range 93-208 treatment days)

Collaborators and Investigators

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

Sponsor

Brigham and Women's Hospital

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

May 1, 2011

Primary Completion (Actual)

March 1, 2012

Study Completion (Actual)

March 1, 2012

Study Registration Dates

First Submitted

August 23, 2011

First Submitted That Met QC Criteria

August 24, 2011

First Posted (Estimate)

August 25, 2011

Study Record Updates

Last Update Posted (Actual)

April 25, 2017

Last Update Submitted That Met QC Criteria

March 14, 2017

Last Verified

March 1, 2017

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 2010P002253

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.

Clinical Trials on Erythropoietic Protoporphyria

Clinical Trials on Colestipol

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

CROs by country

CROs in Jordan

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

3
Subscribe