Phase 1
N=24
A Safety Study of PTI-125 in Healthy Volunteers
Alzheimer Disease, Early Onset · Alzheimer Disease
Bottom Line
View on ClinicalTrials.gov: NCT03784300 ↗Enrolled (actual)
24
Serious AEs
0.0%
Results posted
May 2021
Primary outcome: Primary: Maximum Plasma Concentration (Cmax) — 315; NA; 550; NA ng/mL
Study Design & Population
- Study type
- Interventional
- Phase
- Phase 1
- Interventions
- 50 mg PTI-125 (Drug); 100 mg PTI-125 (Drug); 200 mg PTI-125 (Drug)
- Age
- Adult · 18+ yrs
- Sex
- All
- Sponsor
- Pain Therapeutics
- Primary completion
- Oct 2017
Outcome Measures
| Outcome | Result | p-value |
|---|---|---|
| PRIMARY Maximum Plasma Concentration (Cmax) |
315; NA; 550; NA; 1240; NA | — |
| PRIMARY Time to Maximum Plasma Concentration (Tmax) (Tmax) |
1.56; NA; 1.08; NA; 1.28; NA | — |
| PRIMARY Time to Last Quantifiable Plasma Concentration (Tlast) |
44.0; NA; 46.0; NA; 50.00; NA | — |
| PRIMARY Last Quantifiable Plasma Concentration (Clast) |
1.04; NA; 0.795; NA; 0.806; NA | — |
| PRIMARY Elimination Rate Constant (λz) |
0.141; NA; 0.157; NA; 0.144; NA | — |
| PRIMARY Termination Elimination Half-Life (T1/2) |
6.05; NA; 4.45; NA; 5.93; NA | — |
| PRIMARY Area Under the Curve (AUC) |
2040; NA; 3130; NA; 8130; NA | — |
| PRIMARY Area Under the Curve to Infinity (AUCinf) |
2180; NA; 3260; NA; 8250; NA | — |
| PRIMARY Percent Extrapolated of Area Under the Curve to Infinity (AUCextrap[%]). |
0.410; NA; 0.151; NA; 0.144; NA | — |
| PRIMARY Oral Clearance (Cl/F) |
25.7; NA; 33.0; NA; 24.9; NA | — |
| PRIMARY Volume of Distribution (Vz/F) |
199; NA; 215; NA; 214; NA | — |
Summary
A Phase I, Single Center, Randomized, Double-blind, Placebo-controlled, Single Ascending Dose, Pharmacokinetic and Safety Study of PTl-125 in Healthy Volunteers
Eligibility Criteria
Inclusion Criteria
- Male or female subjects between 18 and 45 years of age, inclusive.
- The subject has a body mass index (BMI) within 18-30 kg/m2 (inclusive).
- The subject is in good health as determined by medical history and physical examination and clinical laboratory parameters.
- The subject is willing and able to speak, read, and understand English and provide written informed consent.
- The subject is a non-smoker for at least 12 months. If a former smoker, the reason for stopping must be evaluated.
- Females who are physically incapable of childbearing defined as postmenopausal, or surgically sterile (hysterectomy, bilateral tubal ligation, bilateral oophorectomy or an Essure procedure). Appropriate documentation (ex; medical record) of the surgical sterilization procedure to be obtained and held within the subject's study file.
- The subject must agree to comply with the drawing of blood samples for the PK assessments.
- The subject is willing and able to comply with all testing and requirements defined in the protocol.
- The subject is willing and able to remain at the study site unit for the duration of the confinement period and return for the outpatient visit.
Exclusion Criteria
- The subject has any relevant deviations from normal in physical examination, electrocardiogram (ECG), or clinical laboratory tests, as evaluated by the investigator.
- The subject has had a clinically significant illness within 30 days of Check-in.
- The subject has a history of significant neurological, hepatic, renal, endocrine, cardiovascular, gastrointestinal, pulmonary, or metabolic disease.
- The subject has used any prescription medication within 14 days of dosing or overthe- counter (OTC) medication within 48 h of dosing or intends to use any prescription medication or OTC medication during the study that may interfere with the evaluation of study medication.
- The subject has used alcohol, caffeine or xanthine-containing products 48 h before dosing or intends to use any of these products during the study.
- The subject has used grapefruit, grapefruit juice, or grapefruit-containing products days before dosing or intends to use any of these products during the study.
- The subject has a history of substance abuse or a positive ethanol breath test, urine cotinine, or urine drug screen at screening or at check-in. The subject has a positive serum hepatitis B surface antigen or positive HCV antibody test at the Screening Visit.
- The subject has a positive HIV test at the Screening Visit.
- Female subject is pregnant or breastfeeding.
- The subject has received an investigational drug within 30 days of Check-in.
- The subject has donated or lost a significant volume of blood (>450 mL) within 4 weeks prior to the study.
- The subject is unwilling to reside in the study unit for the duration of the study or to cooperate fully with the investigator or site personnel.
- The subject has an AST/ALT or total bilirubin greater than the ULN. One repeat test will be allowed.
Data sourced from ClinicalTrials.gov (NCT03784300). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication.