Clinical Trial: Psychological Concomitants of Morquio A Syndrome - Longitudinal Effects of Enzyme Replacement Therapy (The MAPLE Study)

Study Status: Active, not recruiting
Recruit Status: Active, not recruiting
Study Type: Observational

Official Title: Psychological Concomitants of Morquio A Syndrome - Longitudinal Effects of Enzyme Replacement Therapy

Brief Summary:

Mucopolysaccharidosis IV, also known as MPS IV or Morquio disease, is a rare autosomal recessive genetic lysosomal storage disorder. Research thus far regarding Morquio, has primarily focused on the physical aspects of the various diseases. Less attention has been paid to the psychological toll of these diseases, whether they are direct symptoms or reactions to living with a chronic progressive disease.

Prior to 2013, there was neither a cure nor treatment (other than palliative) for Morquio disease. In the latter half of 2013, ERT became available to the broader population of patients with Morquio A disease through BioMarin's Expanded Access Program.

In a previous study, entitled "Psychological Concomitants of Morquio syndrome" the present investigator enrolled 20 adult subjects with Morquio into a pilot study to estimate a baseline incidence of psychological symptoms and overall quality of life. Subjects were all over the age of 18. Data from this study were published in 2015.

The present study extends this research into psychological health with Morquio via a comparison of psychological issues and quality of life before and after treatment (i.e. ERT). As ERT does not cross the blood-brain barrier, it would be unlikely to improve organic psychological symptoms, but may improve any reactive psychological symptoms caused by living over time with this chronic progressive genetic disease.

The present study thus seeks to follow adult patients with Morquio A disease as they begin ERT and track their psychological health every 6 months for a duration of 2 years. Adult patients with Morquio disease are invited to participate. Subjects will complete three different self-report questionnaires, the Achenbach System of Empir

Detailed Summary:

Mucopolysaccharidosis IV, also known as MPS IV or Morquio disease, is a rare autosomal recessive genetic lysosomal storage disorder. Research thus far regarding lysosomal storage diseases (LSDs) in general, including Morquio, has primarily focused on exploring the causes of and finding a treatment for the physical aspects of the various diseases. Less attention has been paid to the psychological or emotional toll of these diseases, whether they are direct symptoms of the diseases themselves or reactions to living with a chronic progressive disease.

It is well established in the health psychology literature, however, that the interaction between our physical health and our psychological health is bidirectional; that is, just as our physical health affects us emotionally (e.g. chronic pain can contribute to depression), so can our psychological health affect us physically (e.g. anxiety can contribute to feelings of chest pain). It is thus critically important to pay attention to the emotional and psychological symptoms associated with all lysosomal storage diseases, including Morquio, and expand our treatment standard of care to include mental health treatment, if necessary.

The first step in understanding and treating psychological conditions in Morquio disease is determining the natural occurrence of psychological symptoms in this population in comparison with non-medical populations. As little has been done in this regard, a pilot study documenting the occurrence rate of psychological issues and overall quality of life in patients with Morquio is the first item in order and will be the focus of this study.

Approximately 20 patients with Morquio disease will be invited to participate, recruited through Emory's Lysosomal Storage Disease Center, as well as through attendance
Sponsor: Nadia Ali, PhD

Current Primary Outcome: ASEBA Self-Report [ Time Frame: Every 6 months for 2 years ]

Self-report questionnaire assessing psychological and adaptive functioning


Original Primary Outcome: Same as current

Current Secondary Outcome:

  • Brief Pain Inventory [ Time Frame: Every 6 months for 2 years ]
    Self-report measure of subjective pain levels and interference of pain in daily functioning
  • SF-36 [ Time Frame: Every 6 months for 2 years ]
    Brief self-report measure of quality of life


Original Secondary Outcome: Same as current

Information By: Emory University

Dates:
Date Received: August 1, 2014
Date Started: March 2014
Date Completion: March 2018
Last Updated: March 20, 2017
Last Verified: March 2017