Chronic Babesiosis
Conditions
Keywords
Chronic Babesiosis
Brief summary
Phase 2 Open Label Study of Tafenoquine for Treatment of Chronic Babesiosis Patients with Severe Fatigue
Interventions
Tafenoquine
Sponsors
60 Degrees Pharmaceuticals LLC
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* Male or female, aged ≥ 18 years * Severe disabling fatigue * Have at least one common symptom of babesiosis * Have laboratory evidence of exposure to babesia in the last 12 months * Able and willing to give written informed consent * Able and willing to perform all study assessments * If female negative urine pregnancy test and * If female agree to use an acceptable method of birth control
Exclusion criteria
* Glucose-6-phosphate-dehydrogenase (G6PD) deficiency * Breastfeeding * Unmanaged Psychotic disorder * Known hypersensitivity reaction to tafenoquine or other 8-aminoquinolines * Current or planned treatment with quinine * Uncontrolled cardiopulmonary or endocrine disorders * Taking OCT2/MATE substrates without appropriate medical oversight * Medical history of chronic, active viral diseases including HIV/AIDS, hepatitis B, and hepatitis C * Have a risk factors for relapsing babesiosis * Anorexia * Any concomitant significant illness unrelated to babesiosis * The patient is unable to tolerate medication by the oral route * The patient has previously taken tafenoquine * Hemoglobin at baseline is ≤ 8 g/dL
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Change in General Fatigue | From enrollment until Day 90 of treatment. | The Multidimensional Fatigue Inventory (MFI) is a 20-item, patient-reported scale. designed to evaluate five dimensions of fatigue: general fatigue (items 1, 5, 12, 16), physical fatigue (items (items 2, 8, 14, 20), reduced motivation (items 3, 6, 10, 17), reduced activity (items 4, 9, 15, 18), and mental fatigue (items 7, 11, 13, 19) (Smets-1995). Items are scored 1-5, with 10 positively phrased items reverse scored (items 2, 5, 9, 10, 13, 14, 16, 17, 18, 19). This scale has been used to assess treatment outcomes in patients with chronic fatigue syndrome, women with fibromyalgia, Parkinson's disease, patients undergoing anti-cancer treatment, and the impact of fatigue on the quality of life in rheumatoid arthritis. Total scale score, and each of the 5 subscales scores will be calculated. MFI subscales are scored by summing four items, each has five possible responses giving a range of possible scores from 4 to 20. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Babesia nucleic acid test (NAT) | From baseline until Day 90 of treatment. | Percentage of patients achieving molecular cure at or earlier than Day 90 who tested positive on the Babesia NAT at baseline, with molecular cure defined as the observance of a negative Babesia NAT test on or before Day 90 |
| Babesia nucleic acid test (NAT) and RT PCR | From baseline, Days 30, 60, 90, 120, and 180 | Number and percentage of patients with a negative Babesia screen on Days 30, 60, 90, 120, and 180 who tested positive at baseline, as assessed individually for each molecular diagnostic test (rtPCR, dPCR, and NAT) |
Countries
United States
Contacts
Primary ContactCore Research
Outcome results
None listed