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Phase 1 N=24 Randomized Triple-blind Prevention

A Safety Study of PTI-125 in Healthy Volunteers

Alzheimer Disease, Early Onset · Alzheimer Disease

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

OutcomeResultp-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.
View full record on ClinicalTrials.gov →

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.

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