Intervention: Unii-JH0PQ88XA2
Trial phase: Phase 1 | Phase 2
SMILES: Cc1cccc(-c2oc(C)nc2C(=O)Nc2cnn(Cc3nc(C(C)(F)F)co3)n2)c1
Sex: All
Age groups: Adult
Healthy volunteers: No
Participants at risk: 2
Group description: Subcutaneous infusion of CT38 at 0.20 μg/kg/hour, for 3 hours on each of 2 days
Eligibility criteria:
Inclusion Criteria:

Provision of signed and dated informed consent form
Ability to read, understand and speak English
Living at an altitude between 3,500 and 5,500 feet above sea level for the past 1 year
Willing to perform an exercise test
Diagnosed with ME/CFS and meet the following 3 case definitions: Fukuda Research Case Definition for CFS (1994), Revised Canadian Consensus Criteria for ME/CFS (2010) and the Institute of Medicine (IOM) Clinical Diagnostic Criteria for ME/CFS (2015)
Relatively stable state of illness for the individual patient over the past 3 months
Male or female, between the ages of 18 and 60 years old
Males or females of reproductive potential agree to remain abstinent or use (or have their partner use) 2 acceptable methods of contraception, starting from the time of informed consent through 28 days after the last dose of study drug. Acceptable methods of birth control during the study are intrauterine device, diaphragm with spermicide, contraceptive sponge, condom or vasectomy. Oral contraceptive pills may not be used as the sole method of contraception because the effect of CT38 on the efficacy of oral contraceptive pills has not yet been established
Stated willingness to comply with all study procedures and remain available for the study duration
Have mobile (smart) phone and access to the internet

Exclusion Criteria:

Alternate medical or psychiatric illness that could explain the ME/CFS symptoms
Unwilling or unable to perform an exercise test
Active or uncontrolled co-morbidities which in the opinion of the PI may interfere with the ability of the patient to participate in the study. Co-morbidities may include acute infection, Crohn's disease, diabetes mellitus (Type 1 or Type 2, evidenced by a history of glycated hemoglobin (A1C) > 7 at any time), Guillain-Barre syndrome, lupus, multiple sclerosis, myasthenia gravis, rheumatoid arthritis, or other such diseases that may be exclusionary. Particularly conditions or medications that cause immunodeficiency or immunosuppression will be excluded. Examples of such conditions can be found in the tables "Causes of Secondary Immunodeficiency" and "Some Drugs that Cause Immunosuppression" in the "Merck Manual"
Pregnancy, or while breast feeding. Women should not be enrolled within 6 months of giving birth and within 3 months of cessation of breast feeding
A Body Mass Index > 35
Cigarette smoker or former smoker who has smoked within 6 months of the start of the study
Living at an altitude that is more than 1,000 feet (lower or higher) from the study site (which is 4,500 feet above sea level)

History of:

Major depression with psychotic or melancholic features before the diagnosis of ME/CFS, or active depression (major depression with psychotic or melancholic features) as determined by self-report
Untreated endocrine diagnoses including hypothyroidism (Hashimoto's, etc.), Grave's disease, adrenal insufficiency, hypogonadism (testosterone deficiency), diabetes mellitus or insipidus
Acute infection within the past 30 days
Within the last 3 years, any significant head injury, e.g., concussion with loss of consciousness, brain surgery, an automobile accident with head/neck injury, other traumatic brain injury
A supra-ventricular tachycardia or ventricular tachycardia, e.g., atrial fibrillation or flutter, paroxysmal atrial fibrillation, junctional tachycardia, ventricular tachycardia
Severe baseline hypotension defined as rested sitting systolic BP < 100 mmHg or rested sitting diastolic BP < 60 mmHg
Renal impairment based upon the local lab normal estimated glomerular filtration rate (eGFR) (drug is cleared by passive renal filtration)
Known hypersensitivity or clinically significant allergies to tromethamine or Tween 80 (both excipients in the drug product)
Substance abuse in the past 12 months as determined by self-report
Improvement in overall ME/CFS symptoms as a result of any treatment intervention in the past 3 months
Current treatment with medications that interact with pathways involving: (i) 5-hydroxytryptamine (5HT) (e.g., selective 5HT re-uptake inhibitors or selective serotonin reuptake inhibitors (SSRIs), 5HT and norepinephrine re-uptake inhibitors or serotonin and norepinephrine reuptake inhibitors (SNRIs), tricyclic antidepressants, monoamine oxidase inhibitors, triptans); (ii) norepinephrine (e.g., adrenergic agonists or antagonists, norepinephrine re-uptake inhibitors, norepinephrine and dopamine re- uptake inhibitors); (iii) dopamine (e.g., norepinephrine and dopamine re-uptake inhibitors); and (iv) cortisol pathways (e.g., oral glucocorticoids, fludrocortisone).

Prior treatment with

Short-term (< 2 weeks) antiviral or antibiotic medication or flu shot within the past 4 weeks
Long-term (> 2 weeks) antiretrovirals within the past 12 months
RituximabTM within 6 months
Any new prescription drug or herbal remedy within 2 weeks prior to the onset of the trial
Current participation in another clinical treatment trial