Food Effect and Bioequivalence Study of Simufilam Tablets in Healthy Volunteers

Sponsor
Cassava Sciences, Inc. (Industry)
Overall Status
Completed
CT.gov ID
NCT04932655
Collaborator
Worldwide Clinical Trials (Other)
24
1
4
8
91.3

Study Details

Study Description

Brief Summary

This is a single-center, randomized, four-treatment, four-sequence crossover study in healthy volunteers to estimate the effect of food on the PK of simufilam following oral 100 mg doses and to estimate its relative bioavailability compared to the earlier Phase 2 simufilam tablet in the fasted state. A total of twenty four (24) healthy volunteers (12 male and 12 female) will be enrolled into this study. Subjects will be randomly assigned to one of four treatment sequences (6 subjects/sequence).

Condition or Disease Intervention/Treatment Phase
Phase 1

Detailed Description

This study will compare the PK of the Phase 3 simufilam 100 mg oral tablet when taken fasted versus following a high-fat or low-fat meal. Additionally, the Phase 3 oral tablet will be compared to the Phase 2 oral tablet for bioequivalence under fasted conditions.

Study Design

Study Type:
Interventional
Actual Enrollment :
24 participants
Allocation:
Randomized
Intervention Model:
Crossover Assignment
Intervention Model Description:
Four-way crossover of Phase 3 tablets under fasted or high-fat or low-fat conditions and the Phase 2 tablet under fasted conditions. Subjects are randomized to a sequence.Four-way crossover of Phase 3 tablets under fasted or high-fat or low-fat conditions and the Phase 2 tablet under fasted conditions. Subjects are randomized to a sequence.
Masking:
None (Open Label)
Primary Purpose:
Other
Official Title:
A Four-way Crossover Food Effect and Bioequivalence Pharmacokinetic Study of Simufilam in Healthy Volunteers
Actual Study Start Date :
May 4, 2021
Actual Primary Completion Date :
May 12, 2021
Actual Study Completion Date :
May 12, 2021

Arms and Interventions

Arm Intervention/Treatment
Other: Fasted

Phase 3 simufilam 100 mg tablet dosed under fasted conditions.

Drug: simufilam
Simufilam 100 mg oral tablets: the Phase 3 oral tablet for the first 3 arms and the Phase 2 tablet for the 4th arm.
Other Names:
  • PTI-125
  • Other: High Fat

    Phase 3 simufilam 100 mg tablet dosed 30 min after start of a high-fat meal.

    Drug: simufilam
    Simufilam 100 mg oral tablets: the Phase 3 oral tablet for the first 3 arms and the Phase 2 tablet for the 4th arm.
    Other Names:
  • PTI-125
  • Other: Low Fat

    Phase 3 simufilam 100 mg tablet dosed 30 min after start of a low-fat meal.

    Drug: simufilam
    Simufilam 100 mg oral tablets: the Phase 3 oral tablet for the first 3 arms and the Phase 2 tablet for the 4th arm.
    Other Names:
  • PTI-125
  • Other: Phase 2 tablet

    Phase 2 simufilam 100 mg tablet dosed under fasted conditions.

    Drug: simufilam
    Simufilam 100 mg oral tablets: the Phase 3 oral tablet for the first 3 arms and the Phase 2 tablet for the 4th arm.
    Other Names:
  • PTI-125
  • Outcome Measures

    Primary Outcome Measures

    1. Cmax [24 hours]

      The maximum concentration determined directly from individual concentration-time data

    2. Tmax [24 hours]

      Time to reach maximum concentration

    3. AUClast [24 hours]

      Area under the curve to the time of the last quantifiable concentration, calculated using the linear trapezoidal method

    4. AUCinf [24 hours extrapolated to infinity]

      Area under the curve extrapolated to infinity; calculated as: AUCinf = AUClast + Clast/λz

    5. Clast [24 hours]

      The last quantifiable concentration determined directly from individual concentration-time data

    6. Tlast [24 hours]

      Time of the last quantifiable concentration

    7. λz [24 hours]

      The observed elimination rate constant; estimated by linear regression through at least three data points in the terminal phase of the log concentration-time profile

    8. T1/2 [24 hours]

      The observed terminal elimination half-life calculated as: T1/2 = ln(2)/λz

    Eligibility Criteria

    Criteria

    Ages Eligible for Study:
    18 Years to 45 Years
    Sexes Eligible for Study:
    All
    Accepts Healthy Volunteers:
    Yes
    Inclusion Criteria:
    1. Male or female subjects, Ages ≥ 18 and ≤ 45 years

    2. BMI of 18 - 30 Kg/m²

    3. Informed consent form (ICF) signed by the subject

    4. General health status acceptable for participation in the study as determined by medical history, review of current medication, physical examination, and laboratory results

    5. Fluency (oral and written) in English

    6. The patient must agree to comply with the drawing of blood samples for the PK assessments, laboratory assessments and plasma biomarkers

    7. The subject is willing and able to remain at the study site for the duration of the study

    Exclusion Criteria:
    1. The subject has any relevant deviations from normal in physical examination, electrocardiogram (ECG), or clinical laboratory tests, as evaluated by the investigator.

    2. The subject has had a clinically significant illness within 30 days of this study.

    3. The subject has a history of significant neurological, hepatic, renal, endocrine, cardiovascular, gastrointestinal, pulmonary, or metabolic disease.

    4. Subject is taking prescription CNS medication.

    5. The subject has used alcohol, grapefruit, grapefruit juice, caffeine or xanthinecontaining products 48 h before dosing or intends to use any of these products during the study.

    6. The subject has a history of substance abuse or a current positive ethanol breath test or positive urine drug screen.

    7. The subject has a positive serum hepatitis B surface antigen or positive HCV antibody test.

    8. The subject has a positive HIV test.

    9. The subject has a current positive urine cotinine test.

    10. The subject has participated in another drug study in the past 30 days.

    11. The subject has donated or lost a significant volume of blood (>450 mL) within 4 weeks of the study.

    12. 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.

    13. Covid-19 infection within the past 3 months

    Contacts and Locations

    Locations

    Site City State Country Postal Code
    1 Worldwide Clinical Trials Phase I Unit San Antonio Texas United States 78217

    Sponsors and Collaborators

    • Cassava Sciences, Inc.
    • Worldwide Clinical Trials

    Investigators

    • Principal Investigator: Robert Bass, MD, Worldwide Clinical Trials

    Study Documents (Full-Text)

    None provided.

    More Information

    Publications

    None provided.
    Responsible Party:
    Cassava Sciences, Inc.
    ClinicalTrials.gov Identifier:
    NCT04932655
    Other Study ID Numbers:
    • PTI-125-05
    First Posted:
    Jun 21, 2021
    Last Update Posted:
    Jun 21, 2021
    Last Verified:
    May 1, 2021
    Individual Participant Data (IPD) Sharing Statement:
    No
    Plan to Share IPD:
    No
    Studies a U.S. FDA-regulated Drug Product:
    Yes
    Studies a U.S. FDA-regulated Device Product:
    No

    Study Results

    No Results Posted as of Jun 21, 2021