| Eligibility |
Inclusion Criteria:
1. Male or female, 18 to 55 years of age, inclusive, at the time of drug administration
2. Without clinically significant abnormities on physical examination at screening or
prior to drug administration
3. Generally healthy, as determined by medical history review, physical examination, and
laboratory testing at screening and prior to drug administration
4. Must have a BMI (body mass index) of = 19.0 and = 30.0, and weight range of 55.0 to
85.0 kg at screening or prior to drug administration
5. Must have adequate venous access and sufficient upper leg muscle tissue for drug
administration
6. If female, the subject must be nonpregnant and nonbreastfeeding, and have a negative
serum pregnancy test at screening and prior to drug administration
7. If female of childbearing potential, the subject must have been using adequate
contraception (as defined in Section 5.3.1.5) for at least 3 months prior to drug
administration and must agree to use an adequate method of contraception for at least
30 days following drug administration
8. Females of nonchildbearing potential are also eligible, defined as a subject who is
postmenopausal (continuous amenorrhea for 24 months) or surgically sterile (bilateral
tubal ligation, bilateral oophorectomy, or total hysterectomy)
9. A male with a female partner of childbearing potential must agree to use a barrier
method of contraception (defined as condoms with spermicide) for at least 30 days
following drug administration
10. If male, must not have past diagnoses of benign prostatic hypertrophy or urinary tract
obstruction and must not have on screening history/review of systems symptoms
suggestive of urinary tract obstruction (eg, urinary hesitancy, urgency, frequency, or
nocturia)
11. Nonsmoker/tobacco/nicotine product (including e-cigarettes) user within 3 months of
first dosing and must have a total lifetime exposure to cigarettes of < 15 pack-years
12. No evidence of significant neuropsychiatric disorders based on the Brief Psychiatric
Rating Scale (BPRS) at screening and prior to drug administration, which is defined as
having a global score of = 25 with no score higher than 2 on any one item, with the
exception of a score of 1 (ie, Not Present) to disorientation, hallucinatory behavior,
and suspiciousness (ie, paranoia)
13. No evidence of suicidal ideation or behavior at screening and prior to drug
administration, which is defined as having a global score of 0 on the Columbia-Suicide
Severity Rating Scale (C-SSRS)
14. Ability to read, speak, and comprehend English and a willingness to sign informed
consent
Exclusion Criteria:
1. Received any other investigational drug within 30 days prior to drug administration
2. Known allergies to any component of the study drug, other belladonna alkaloids, or the
recovery medications (physostigmine, atropine, or benzodiazepines [diazepam or
lorazepam])
3. History of migraine headaches or seizures
4. History of psychosis or psychotic episodes
5. Clinically relevant abnormal physical findings (including vital signs) as determined
by the investigator at screening or prior to drug administration that could interfere
with the objectives of the study or the safety of the subject
6. Has ongoing drug abuse/dependence (including alcohol), recent history (over the past 5
years) of treatment for alcohol or drug abuse, or a current positive alcohol
breathalyzer test or current positive urine test for drugs of abuse (as defined in
Section 11.1.9.5) at screening or prior to drug administration
7. Has consumed Seville orange (bitter orange), grapefruit, grapefruit juice, other
grapefruit-containing products, or starfruit within 7 days prior to dosing
8. Has consumed caffeine or other xanthine-containing products within 7 days prior to
dosing
9. Has any specified laboratory values (eg, hematology, serum chemistry, and urinalysis)
outside of the normal range for age and sex and deemed clinically significant by the
investigator within 30 days before drug administration
10. Has positive (reactive) test results for hepatitis B surface antigen, hepatitis C,
syphilis, HIV-1, or HIV-2
11. Has narrow-angle glaucoma or high intraocular pressures in either or both eyes
12. Has pyloric obstruction or urinary bladder neck obstruction
13. Has impaired liver or kidney functions
14. Clinically relevant electrocardiogram (ECG) abnormalities on any 12-lead ECG obtained
at screening or prior to dosing
15. ECG with a PR interval = 200 msec at screening or prior to dosing
16. ECG with QRS duration > 120 msec at screening or prior to dosing
17. ECG RR interval > 1500 msec at screening or prior to dosing
18. ECG with a QTc interval > 450 msec for males or 470 msec for females (QT interval
corrected with Fridericia correction [QTcF]) at screening or prior to dosing
19. Systolic blood pressure > 140 mm Hg and/or diastolic blood pressure > 90 mm Hg at
screening or prior to dosing
20. Systolic blood pressure < 90 mm Hg and/or diastolic blood pressure < 50 mm Hg at
screening or prior to dosing
21. Currently taking or has taken other antimuscarinic drugs such as phenothiazines,
tricyclic antidepressants, antihistamines (including meclizine), meperidine, or other
anticholinergics that have weak antimuscarinic activity or that cause drowsiness,
including antidepressants, benzodiazepines, alcohol, sedatives (used to treat
insomnia), pain relievers, anxiety medicines, and muscle relaxants within 72 hours
prior to dosing
22. Has taken, within 14 days of planned dosing, any prescription or nonprescription
medication (including home remedies, herbal supplements, or nutritional supplements)
unless the PI/subinvestigator, in consultation with the medical monitor, provides a
statement justifying that the medication taken will not impact the results of this
study (with rare exceptions taking prescriptions drugs will be grounds for exclusion)
23. History of major DSM-5 Axis I or II disorder, or evidence of such disorder at Day -1
as determined via the Structured Clinical Interview for DSM-5, customized Clinical
Trials version (SCID-5-CT)
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