About this trial
Many patients with Postural Orthostatic Tachycardia Syndrome (POTS) experience debilitating fatigue and this significantly impacts their daily lives. Unfortunately, there are no treatments to help POTS patients with their fatigue. One medication, called low dose naltrexone (LDN), has been tested as a treatment for fatigue in other medical conditions. In this other research, LDN helped patients feel less fatigue. Other research studies have shown that LDN can help reduce markers of inflammation called cytokines. Reducing these cytokines could help reduce symptoms as well. There have been no research studies testing LDN in POTS to date. We are planning to do a research study to test LDN as a treatment to see if it helps POTS patients feel less fatigue.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Physician diagnosis of POTS as defined by the American Autonomic Society consensus statement
Ability to attend research lab in Calgary, Vancouver or Hamilton, Canada
Not pregnant and not planning to become pregnant for the duration of the study
Maintain current other medications at regular doses for the duration of the study
Disqualifiers
Overt cause for postural tachycardia (e.g. acute dehydration, hyperthyroidism)
Positive pregnancy test
Breastfeeding
Other factors which in the investigator's opinion would prevent participant from completing the protocol, including poor compliance during previous studies
Trial design
Parallel
Treatments tested in this trial
Low Dose Naltrexone
DrugParticipant takes Low Dose Naltrexone 4.5mg PO OD for 120 days. Participant will complete a a 4 week titration to target dose of 4.5mg. Week 1-2: 1.5mg PO OD. Week 3-4: 3.0mg PO OD. Week 5-16: 4.5mg PO OD. Participant will be provided with masked capsules in blister packs.
Microcrystalline cellulose
DrugParticipant takes microcrystalline cellulose 4.5mg PO OD for 120 days. Participant will complete a a 4 week titration to target dose of 4.5mg. Week 1-2: 1.5mg PO OD. Week 3-4: 3.0mg PO OD. Week 5-16: 4.5mg PO OD. Participant will be provided with masked capsules in blister packs.
Treatment groups
Trial outcomes
Primary outcomes
Fatigue Visual Analogue Scale (VAS)
Change in Fatigue VAS from pre-treatment (baseline) to treatment (4 months). The score is measured from 0-100 (0 is no fatigue).
Secondary outcomes
RAND 36 Health Related Quality of Life Score
Change in RAND 36 Health Related Quality of Life Score from pre-treatment baseline to treatment (4 months).
Cytokines
Change in plasma cytokine levels from pre-treatment baseline to treatment (4 months)
Locations
Sponsors and contacts
Click on the lead sponsor to view all of their trials.
This trial is not recruiting at the moment. You can still explore other options: