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Cognitive Function in Rett Syndrome During Trofinetide Treatment

University of Minnesota (UMN) logo

University of Minnesota (UMN)

Status

Enrolling

Conditions

Rett Syndrome

Treatments

Other: None interventional

Study type

Observational

Funder types

Other

Identifiers

NCT06705816
Rett Syndrome

Details and patient eligibility

About

Assessing cognitive functions among individuals with severe intellectual and developmental disabilities (IDD), including RTT, is often challenging due to floor effects of many standardized assessment batteries in this population. In addition, deficits in motor function and verbal ability may obscure certain abilities in this population when using standard IQ measures. Remote eye-tracking tasks have been proposed as an alternative approach for assessing cognitive functions among individuals with severe IDD, because eye-tracking tasks can be designed to minimize the influence of gross motor and receptive language deficits on performance. Although several types of eye-tracking tasks have been evaluated in RTT, most have been implemented only at a single time-point. As a result, it is unclear whether these measures are stable over time, or sensitive to developmental changes or alterations to health status that occur in RTT (e.g., developmental regression, development of seizures, change in medication, etc.). With the recent FDA approval of trofinetide for the treatment of RTT, we have a novel opportunity to test the sensitivity of eye-tracking and other psychophysiological measures to treatment changes. Anecdotally, parents and clinicians have reported improvements in attention and alertness during trofinetide treatment, but currently available outcome measures do not capture these types of effects. Therefore, we propose to conduct a pilot trial of changes in measures of attention, oculomotor function, learning, and autonomic function, all collected using non-invasive measures, during trofinetide treatment. This is an observational within-subject design with a 4-week post-treatment assessment compared to two pre-treatment assessments. Additional optional follow-up assessments will be performed with families who are interested and returning for standard-of-care visits to Gillette or who are willing to travel for a research-only visit.

Enrollment

20 estimated patients

Sex

All

Ages

18 to 99 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • Any individuals who are initiating trofinetide treatment for RTT through the physicians associated with the Gillette Children's RTT clinic will be potentially eligible for participation, regardless of age. To enroll, participants must meet the following criteria:

    1. Provision of signed and dated informed consent form by the individual's parent/legal guardian
    2. Stated willingness to comply with all study procedures and availability for the duration of the study
    3. Documented diagnosis of Rett syndrome
    4. Participant is not showing active signs of developmental regression, defined as: no loss or degradation of ambulation within the past 6 months; no loss or degradation of hand function within the past 6 months; and no loss or degradation of verbal or non-verbal communication or social skills in the past 6 months.
    5. Participant's current pharmacological treatment regimen has been stable for at least 4 weeks.
    6. Seeking prescription for trofinetide through the Gillette Children's Rett syndrome clinic

Exclusion criteria

  1. Diagnosis of a progressive medical or neurological condition that in the opinion of the investigator would interfere with the conduct of the study.
  2. Current clinically significant systemic illness that is likely to result in the deterioration of the participant's condition during the study.
  3. Participants taking any other investigational drug currently or within the past 30 days.
  4. Known, uncorrected visual impairment that would limit the ability to view images during eye-tracking tasks.
  5. Severe behavioral problems (i.e., aggression, property destruction, extreme hyperactivity) that would interfere with participation in study activities.

Trial design

20 participants in 1 patient group

Study group
Description:
Patients with Rett Syndrome who are interested in Trofinetide treatment
Treatment:
Other: None interventional

Trial contacts and locations

1

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Central trial contact

Breanne Byiers

Data sourced from clinicaltrials.gov

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