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A Multiple Dose Study to Assess the Safety, Tolerability and PK of Risperidone Extended Release Capsules

A Multiple Dose Study to Assess the Safety, Tolerability and Pharmacokinetics of Risperidone Extended Release Capsules in Subjects With Schizophrenia, Schizoaffective Disorder

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04567524
Enrollment
34
Registered
2020-09-28
Start date
2020-08-13
Completion date
2020-12-22
Last updated
2023-02-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Schizophrenia Schizoaffective

Brief summary

Lyndra is developing an oral, extended release (ER) formulation of risperidone (LYN-005) presented in a capsule dosage form with the intent of reducing the frequency of dosing orally-administered medications to once weekly or less and thereby improving the management of schizophrenia. Study LYN-005-C-004 will evaluate the safety, tolerability, and pharmacokinetics (PK) of multiple dose administration of the ER formulation at two dose levels of LYN-005 relative to IR risperidone.

Detailed description

LYN-005-C-004 is a blinded, multiple-dose, randomized, parallel group, safety, tolerability and PK study of LYN-005 in subjects with a primary diagnosis of schizophrenia or schizoaffective disorder in general good health. Eligible subjects must be clinically stable and receiving a therapeutic dose of an approved oral antipsychotic drug for a minimum of 6 weeks at the time of Screening. Enrolled subjects will be evaluated under steady-state conditions on commercially-available IR risperidone tablets and then assigned in blinded fashion either to LYN-005 weekly or continued encapsulated IR risperidone daily for 3 weeks to attain (or continue) steady-state exposure.

Interventions

LYN-005 (14 or 28 mg weekly) plus IR risperidone matched placebo.

Sponsors

Worldwide Clinical Trials
CollaboratorOTHER
Lyndra Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Caregiver)

Masking description

Although treatment assignment was blinded; the dose level was not blinded. The dose of LYN-005 (14 or 28 mg)/IR risperidone (2 or 4 mg/day) administered was based on the subject's current antipsychotic medication dose. Randomization was stratified by risperidone dose (LYN-005 14 mg/IR risperidone 2 mg/day \[low dose\] and LYN-005 28 mg/IR risperidone 4 mg/day \[high dose\], with a maximum of 16 subjects enrolled in each stratum. Within each stratum, subjects were randomized on a 3:1 basis to either LYN-005 or risperidone, respectively.

Intervention model description

LYN-005-C-004 was a blinded, multiple-dose, randomized, parallel group, safety, tolerability and PK study of LYN-005 in subjects with a primary diagnosis of schizophrenia or schizoaffective disorder in general good health. Eligible subjects were clinically stable and receiving a therapeutic dose of an approved oral antipsychotic drug for a minimum of 6 weeks at the time of Screening. Enrolled subjects were evaluated under steady-state conditions on commercially-available IR risperidone tablets and then assigned in blinded fashion either to LYN-005 weekly or continued encapsulated IR risperidone daily for 3 weeks to attain (or continue) steady-state exposure.

Eligibility

Sex/Gender
ALL
Age
18 Years to 50 Years
Healthy volunteers
No

Inclusion criteria

Eligibility for this study was met if each one of the following inclusion criteria was satisfied at Screening (or at baseline when specified): 1. Male or female aged ≥18 and ≤50 years. 2. Current diagnosis of schizophrenia or schizoaffective disorder according to DSM-5 criteria as confirmed by the MINI 7.0.2. 3. The following psychiatric criteria were used to determine subject eligibility: 1. Duration of diagnosis of schizophrenia or schizoaffective disorder of ≥2 years. 2. Outpatient; not hospitalized for worsening of schizophrenia within the last 6 months (partial hospitalization for social management within this time period is acceptable). 3. Medically stable over the last month and psychiatrically stable without significant symptom exacerbation over the last 3 months. 4. Stabilized on an oral antipsychotic medication (single agent) for a minimum of 6 weeks at the time of Screening. 5. On a stable dosage of all permitted non-antipsychotic medications (except for medication to be used on an as-needed basis) for at least 1 month prior to the Screening visit and for the duration of the study. 6. CGI-S score of ≤4 (moderately ill). 7. PANSS score of ≤80 points. 8. Body mass index (BMI) of ≥18 kg/m2 and ≤35 kg/m2. 9. Able to read and understand study procedures and provide written informed consent before the initiation of any protocol-specific procedures. 10. Willing to comply with all protocol-specified procedures and availability for the duration of the study. 11. Subject has identified a caregiver or personal contact with whom the subject communicates with at least once a week.

Exclusion criteria

Subject will not be considered eligible to participate in this study if any one of the following

Design outcomes

Primary

MeasureTime frameDescription
Active Moiety TmaxReported data was obtained following multiple dose administration of 3 weekly doses [(IR, Day-1), (ER, Week 1), ER Week 3)] of 14 or 28 mg risperidone LYN-005 capsules to assess extended release PK.Active Moiety Tmax (h) (risperidone and 9-hydroxyrisperidone combined) after repeat weekly doses of LYN-005 ER capsules relative to IR risperidone tablets at 2 dose levels.
Participants With at Least One Treatment Emergent Adverse Event (TEAE).35 daysIncidence of treatment emergent adverse events (TEAEs) reported as participants with at least one treatment emergent adverse event (TEAE).
Total Number of Treatment Emergent Adverse Events (TEAEs).35 daysIncidence of treatment emergent adverse events (TEAEs) reported as total number of TEAEs.
Active Moiety PK (Cmax)Reported data was obtained following multiple dose administration of 3 weekly doses [(IR, Day-1), (ER, Week 1), ER Week 3)] of 14 or 28 mg risperidone LYN-005 capsules to assess extended release PK.Active moiety Cmax (risperidone and 9-hydroxyrisperidone combined) after repeat weekly doses of LYN-005 Extended Release (ER) capsules relative to Immediate Release (IR) risperidone tablets at 2 dose levels.
Active Moiety PK (AUC0-24, AUC0-168)Reported data was obtained following multiple dose administration of 3 weekly doses [(IR, Day-1), (ER, Week 1), ER Week 3)] of 14 or 28 mg risperidone LYN-005 capsules to assess extended release PK.Active moiety AUC (risperidone and 9-hydroxyrisperidone combined) after repeat weekly doses of LYN-005 ER capsules relative to IR risperidone tablets at 2 dose levels.

Secondary

MeasureTime frameDescription
PK of Risperidone (Cmax).Reported data was obtained following multiple dose administration of 3 weekly doses [(IR, Day-1), (ER, Week 1), ER Week 3)] of 14 or 28 mg risperidone LYN-005 capsules to assess extended release PK.To characterize exposure (Cmax) of risperidone during the switch to LYN-005.
PK of Risperidone (AUC0-24h, AUC0-168).Reported data was obtained following multiple dose administration of 3 weekly doses [(IR, Day-1), (ER, Week 1), ER Week 3)] of 14 or 28 mg risperidone LYN-005 capsules to assess extended release PK.To characterize exposure (AUC0-24h, AUC0-168) of risperidone during the switch to LYN-005.
PK of 9-Hydroxyrisperidone (Cmax).Reported data was obtained following multiple dose administration of 3 weekly doses [(IR, Day-1), (ER, Week 1), ER Week 3)] of 14 or 28 mg risperidone LYN-005 capsules to assess extended release PK.To characterize exposure (Cmax) of 9-Hydroxyrisperidone during the switch to LYN-005.
PK of 9-Hydroxyrisperidone (AUC0-24h, AUC0-168h).Reported data was obtained following multiple dose administration of 3 weekly doses [(IR, Day-1), (ER, Week 1), ER Week 3)] of 14 or 28 mg risperidone LYN-005 capsules to assess extended release PK.To characterize exposure (AUC0-24h, AUC0-168h) of 9-Hydroxyrisperidone during the switch to LYN-005.

Countries

United States

Participant flow

Recruitment details

This study was conducted at 5 sites that randomized participants in the US. The study period was 13 August 2020 (first signed informed consent) to 22 December 2020 (last participant visit/observation)

Pre-assignment details

A total of 34 participants were enrolled. Thirty-two participants completed the Run-in Period and were randomized, comprising the Safety Population; of these, 24 participants received LYN-005 (12 low dose; 12 high dose) and 8 participants received IR risperidone (4 low dose; 4 high dose).

Participants by arm

ArmCount
LYN-005 14 mg
LYN-005: Size 00EL capsules containing LYN-005 stellate (14mg) AND IR risperidone matched placebo
12
LYN-005 28 mg
LYN-005: Size 00EL capsules containing LYN-005 stellate (28 mg) AND IR risperidone matched placebo
12
Risperidone 2 mg
Risperidone (2 mg) AND LYN-005-matched placebo
4
Risperidone 4 mg
Risperidone (4 mg) AND LYN-005-matched placebo.
4
Total32

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003
Overall StudyAdverse Event1100
Overall StudyWithdrawal by Subject2001

Baseline characteristics

CharacteristicTotalLYN-005 14 mgLYN-005 28 mgRisperidone 2 mgRisperidone 4 mg
Age, Continuous36.2 years
STANDARD_DEVIATION 7.28
36.0 years
STANDARD_DEVIATION 6.24
34.3 years
STANDARD_DEVIATION 7.46
35.0 years
STANDARD_DEVIATION 7.12
43.5 years
STANDARD_DEVIATION 7.85
Body Mass Index (BMI)27.11 kg/m^2
STANDARD_DEVIATION 4.835
29.57 kg/m^2
STANDARD_DEVIATION 4.695
24.98 kg/m^2
STANDARD_DEVIATION 4.476
26.48 kg/m^2
STANDARD_DEVIATION 2.68
26.78 kg/m^2
STANDARD_DEVIATION 6.086
CGI-S Total Score at Baseline3.0 units on a scale
STANDARD_DEVIATION 0.65
2.9 units on a scale
STANDARD_DEVIATION 0.51
3.0 units on a scale
STANDARD_DEVIATION 0.85
2.8 units on a scale
STANDARD_DEVIATION 0.5
3.3 units on a scale
STANDARD_DEVIATION 0.5
ESRS Total Score at Baseline0.4 units on a scale
STANDARD_DEVIATION 1.36
0.2 units on a scale
STANDARD_DEVIATION 0.58
0.6 units on a scale
STANDARD_DEVIATION 2.02
0 units on a scale
STANDARD_DEVIATION 0
0.8 units on a scale
STANDARD_DEVIATION 1.5
Race/Ethnicity, Customized
Race
Black or African American
30 Participants11 Participants11 Participants4 Participants4 Participants
Race/Ethnicity, Customized
Race
White
2 Participants1 Participants1 Participants0 Participants0 Participants
Sex: Female, Male
Female
6 Participants2 Participants3 Participants1 Participants0 Participants
Sex: Female, Male
Male
26 Participants10 Participants9 Participants3 Participants4 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
0 / 120 / 120 / 40 / 4
other
Total, other adverse events
10 / 128 / 121 / 41 / 4
serious
Total, serious adverse events
0 / 120 / 120 / 40 / 4

Outcome results

Primary

Active Moiety PK (AUC0-24, AUC0-168)

Active moiety AUC (risperidone and 9-hydroxyrisperidone combined) after repeat weekly doses of LYN-005 ER capsules relative to IR risperidone tablets at 2 dose levels.

Time frame: Reported data was obtained following multiple dose administration of 3 weekly doses [(IR, Day-1), (ER, Week 1), ER Week 3)] of 14 or 28 mg risperidone LYN-005 capsules to assess extended release PK.

Population: All enrolled participants who received at least 1 dose of randomized study drug and had at least 1 post-dose quantifiable (or evaluable) PK concentration data

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
LYN-005 14mgActive Moiety PK (AUC0-24, AUC0-168)AUC0-24377 h*ng/mLGeometric Coefficient of Variation 44
LYN-005 28mgActive Moiety PK (AUC0-24, AUC0-168)AUC0-24361 h*ng/mLGeometric Coefficient of Variation 49
LYN-005 28mgActive Moiety PK (AUC0-24, AUC0-168)AUC0-1681820 h*ng/mLGeometric Coefficient of Variation 52.1
Overall LYN-005Active Moiety PK (AUC0-24, AUC0-168)AUC0-24371 h*ng/mLGeometric Coefficient of Variation 47.4
Overall LYN-005Active Moiety PK (AUC0-24, AUC0-168)AUC0-1682120 h*ng/mLGeometric Coefficient of Variation 53.2
Risperidone 2 mgActive Moiety PK (AUC0-24, AUC0-168)AUC0-24301 h*ng/mLGeometric Coefficient of Variation 23.1
Risperidone 4 mgActive Moiety PK (AUC0-24, AUC0-168)AUC0-24326 h*ng/mLGeometric Coefficient of Variation 19.1
Overall RisperidoneActive Moiety PK (AUC0-24, AUC0-168)AUC0-24359 h*ng/mLGeometric Coefficient of Variation 32.6
LYN-005 28 mg (A)Active Moiety PK (AUC0-24, AUC0-168)AUC0-24472 h*ng/mLGeometric Coefficient of Variation 137.7
LYN-005 28 mg (B)Active Moiety PK (AUC0-24, AUC0-168)AUC0-24575 h*ng/mLGeometric Coefficient of Variation 39.3
LYN-005 28 mg (B)Active Moiety PK (AUC0-24, AUC0-168)AUC0-1683350 h*ng/mLGeometric Coefficient of Variation 42.3
LYN-005 28 mg (C)Active Moiety PK (AUC0-24, AUC0-168)AUC0-1682950 h*ng/mLGeometric Coefficient of Variation 121.1
LYN-005 28 mg (C)Active Moiety PK (AUC0-24, AUC0-168)AUC0-24568 h*ng/mLGeometric Coefficient of Variation 104.3
Risperidone 4 mg (A)Active Moiety PK (AUC0-24, AUC0-168)AUC0-24732 h*ng/mLGeometric Coefficient of Variation 46.3
Risperidone 4 mg (B)Active Moiety PK (AUC0-24, AUC0-168)AUC0-24753 h*ng/mLGeometric Coefficient of Variation 44.9
Risperidone 4 mg (C)Active Moiety PK (AUC0-24, AUC0-168)AUC0-24687 h*ng/mLGeometric Coefficient of Variation 36.9
Primary

Active Moiety PK (Cmax)

Active moiety Cmax (risperidone and 9-hydroxyrisperidone combined) after repeat weekly doses of LYN-005 Extended Release (ER) capsules relative to Immediate Release (IR) risperidone tablets at 2 dose levels.

Time frame: Reported data was obtained following multiple dose administration of 3 weekly doses [(IR, Day-1), (ER, Week 1), ER Week 3)] of 14 or 28 mg risperidone LYN-005 capsules to assess extended release PK.

Population: All enrolled participants who received at least 1 dose of randomized study drug and had at least 1 post-dose quantifiable (or evaluable) PK concentration data.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
LYN-005 14mgActive Moiety PK (Cmax)31.0 ng/mLGeometric Coefficient of Variation 37.5
LYN-005 28mgActive Moiety PK (Cmax)20.0 ng/mLGeometric Coefficient of Variation 56.7
Overall LYN-005Active Moiety PK (Cmax)18.6 ng/mLGeometric Coefficient of Variation 42.9
Risperidone 2 mgActive Moiety PK (Cmax)24.8 ng/mLGeometric Coefficient of Variation 38.3
Risperidone 4 mgActive Moiety PK (Cmax)30.3 ng/mLGeometric Coefficient of Variation 17.5
Overall RisperidoneActive Moiety PK (Cmax)31.2 ng/mLGeometric Coefficient of Variation 68.7
LYN-005 28 mg (A)Active Moiety PK (Cmax)24.6 ng/mLGeometric Coefficient of Variation 405.7
LYN-005 28 mg (B)Active Moiety PK (Cmax)31.2 ng/mLGeometric Coefficient of Variation 32.1
LYN-005 28 mg (C)Active Moiety PK (Cmax)30.4 ng/mLGeometric Coefficient of Variation 102.7
Risperidone 4 mg (A)Active Moiety PK (Cmax)54.1 ng/mLGeometric Coefficient of Variation 19.3
Risperidone 4 mg (B)Active Moiety PK (Cmax)46.3 ng/mLGeometric Coefficient of Variation 23.8
Risperidone 4 mg (C)Active Moiety PK (Cmax)48.8 ng/mLGeometric Coefficient of Variation 40.9
Primary

Active Moiety Tmax

Active Moiety Tmax (h) (risperidone and 9-hydroxyrisperidone combined) after repeat weekly doses of LYN-005 ER capsules relative to IR risperidone tablets at 2 dose levels.

Time frame: Reported data was obtained following multiple dose administration of 3 weekly doses [(IR, Day-1), (ER, Week 1), ER Week 3)] of 14 or 28 mg risperidone LYN-005 capsules to assess extended release PK.

Population: All enrolled participants who received at least 1 dose of randomized study drug and had at least 1 post-dose quantifiable (or evaluable) PK concentration data

ArmMeasureValue (GEOMETRIC_MEAN)
LYN-005 14mgActive Moiety Tmax1.9 hours
LYN-005 28mgActive Moiety Tmax23.7 hours
Overall LYN-005Active Moiety Tmax23.8 hours
Risperidone 2 mgActive Moiety Tmax3.0 hours
Risperidone 4 mgActive Moiety Tmax1.5 hours
Overall RisperidoneActive Moiety Tmax3.0 hours
LYN-005 28 mg (A)Active Moiety Tmax1.0 hours
LYN-005 28 mg (B)Active Moiety Tmax24.1 hours
LYN-005 28 mg (C)Active Moiety Tmax23.8 hours
Risperidone 4 mg (A)Active Moiety Tmax2.1 hours
Risperidone 4 mg (B)Active Moiety Tmax4.0 hours
Risperidone 4 mg (C)Active Moiety Tmax2.0 hours
Primary

Participants With at Least One Treatment Emergent Adverse Event (TEAE).

Incidence of treatment emergent adverse events (TEAEs) reported as participants with at least one treatment emergent adverse event (TEAE).

Time frame: 35 days

Population: Safety Population: All enrolled participants who were randomized to study drug (LYN-005 14 mg/28 mg or IR risperidone 2 mg/4 mg) and received at least 1 dose of randomized study drug. Participants were reported according to the treatment received. The Safety Population was the primary safety analysis population.

ArmMeasureValue (NUMBER)
LYN-005 14mgParticipants With at Least One Treatment Emergent Adverse Event (TEAE).10 Number of Participants with TEAEs
LYN-005 28mgParticipants With at Least One Treatment Emergent Adverse Event (TEAE).8 Number of Participants with TEAEs
Overall LYN-005Participants With at Least One Treatment Emergent Adverse Event (TEAE).18 Number of Participants with TEAEs
Risperidone 2 mgParticipants With at Least One Treatment Emergent Adverse Event (TEAE).1 Number of Participants with TEAEs
Risperidone 4 mgParticipants With at Least One Treatment Emergent Adverse Event (TEAE).1 Number of Participants with TEAEs
Overall RisperidoneParticipants With at Least One Treatment Emergent Adverse Event (TEAE).2 Number of Participants with TEAEs
Primary

Total Number of Treatment Emergent Adverse Events (TEAEs).

Incidence of treatment emergent adverse events (TEAEs) reported as total number of TEAEs.

Time frame: 35 days

Population: Safety Population: All enrolled participants who were randomized to study drug (LYN-005 14 mg/28 mg or IR risperidone 2 mg/4 mg) and received at least 1 dose of randomized study drug. Participants were reported according to the treatment received. The Safety Population was the primary safety analysis population.

ArmMeasureValue (NUMBER)
LYN-005 14mgTotal Number of Treatment Emergent Adverse Events (TEAEs).15 Number of Experienced TEAEs
LYN-005 28mgTotal Number of Treatment Emergent Adverse Events (TEAEs).21 Number of Experienced TEAEs
Overall LYN-005Total Number of Treatment Emergent Adverse Events (TEAEs).36 Number of Experienced TEAEs
Risperidone 2 mgTotal Number of Treatment Emergent Adverse Events (TEAEs).2 Number of Experienced TEAEs
Risperidone 4 mgTotal Number of Treatment Emergent Adverse Events (TEAEs).2 Number of Experienced TEAEs
Overall RisperidoneTotal Number of Treatment Emergent Adverse Events (TEAEs).4 Number of Experienced TEAEs
Secondary

PK of 9-Hydroxyrisperidone (AUC0-24h, AUC0-168h).

To characterize exposure (AUC0-24h, AUC0-168h) of 9-Hydroxyrisperidone during the switch to LYN-005.

Time frame: Reported data was obtained following multiple dose administration of 3 weekly doses [(IR, Day-1), (ER, Week 1), ER Week 3)] of 14 or 28 mg risperidone LYN-005 capsules to assess extended release PK.

Population: All enrolled participants who received at least 1 dose of randomized study drug and had at least 1 post-dose quantifiable (or evaluable) PK concentration data

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
LYN-005 14mgPK of 9-Hydroxyrisperidone (AUC0-24h, AUC0-168h).AUC0-24h315 h*ng/mLGeometric Coefficient of Variation 39.7
LYN-005 28mgPK of 9-Hydroxyrisperidone (AUC0-24h, AUC0-168h).AUC0-24h268 h*ng/mLGeometric Coefficient of Variation 38.2
LYN-005 28mgPK of 9-Hydroxyrisperidone (AUC0-24h, AUC0-168h).AUC0-168h1530 h*ng/mLGeometric Coefficient of Variation 51.7
Overall LYN-005PK of 9-Hydroxyrisperidone (AUC0-24h, AUC0-168h).AUC0-168h1770 h*ng/mLGeometric Coefficient of Variation 54.4
Overall LYN-005PK of 9-Hydroxyrisperidone (AUC0-24h, AUC0-168h).AUC0-24h302 h*ng/mLGeometric Coefficient of Variation 47
Risperidone 2 mgPK of 9-Hydroxyrisperidone (AUC0-24h, AUC0-168h).AUC0-24h243 h*ng/mLGeometric Coefficient of Variation 11.2
Risperidone 4 mgPK of 9-Hydroxyrisperidone (AUC0-24h, AUC0-168h).AUC0-24h262 h*ng/mLGeometric Coefficient of Variation 20.8
Overall RisperidonePK of 9-Hydroxyrisperidone (AUC0-24h, AUC0-168h).AUC0-24h265 h*ng/mLGeometric Coefficient of Variation 26.6
LYN-005 28 mg (A)PK of 9-Hydroxyrisperidone (AUC0-24h, AUC0-168h).AUC0-24h268 h*ng/mLGeometric Coefficient of Variation 272.6
LYN-005 28 mg (B)PK of 9-Hydroxyrisperidone (AUC0-24h, AUC0-168h).AUC0-24h441 h*ng/mLGeometric Coefficient of Variation 33.6
LYN-005 28 mg (B)PK of 9-Hydroxyrisperidone (AUC0-24h, AUC0-168h).AUC0-168h2720 h*ng/mLGeometric Coefficient of Variation 35.9
LYN-005 28 mg (C)PK of 9-Hydroxyrisperidone (AUC0-24h, AUC0-168h).AUC0-24h523 h*ng/mLGeometric Coefficient of Variation 177.9
LYN-005 28 mg (C)PK of 9-Hydroxyrisperidone (AUC0-24h, AUC0-168h).AUC0-168h2090 h*ng/mLGeometric Coefficient of Variation 100.5
Risperidone 4 mg (A)PK of 9-Hydroxyrisperidone (AUC0-24h, AUC0-168h).AUC0-24h641 h*ng/mLGeometric Coefficient of Variation 43.5
Risperidone 4 mg (B)PK of 9-Hydroxyrisperidone (AUC0-24h, AUC0-168h).AUC0-24h665 h*ng/mLGeometric Coefficient of Variation 42.9
Risperidone 4 mg (C)PK of 9-Hydroxyrisperidone (AUC0-24h, AUC0-168h).AUC0-24h645 h*ng/mLGeometric Coefficient of Variation 45.5
Secondary

PK of 9-Hydroxyrisperidone (Cmax).

To characterize exposure (Cmax) of 9-Hydroxyrisperidone during the switch to LYN-005.

Time frame: Reported data was obtained following multiple dose administration of 3 weekly doses [(IR, Day-1), (ER, Week 1), ER Week 3)] of 14 or 28 mg risperidone LYN-005 capsules to assess extended release PK.

Population: All enrolled participants who received at least 1 dose of randomized study drug and had at least 1 post-dose quantifiable (or evaluable) PK concentration data

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
LYN-005 14mgPK of 9-Hydroxyrisperidone (Cmax).20.8 ng/mLGeometric Coefficient of Variation 31
LYN-005 28mgPK of 9-Hydroxyrisperidone (Cmax).16.1 ng/mLGeometric Coefficient of Variation 49.6
Overall LYN-005PK of 9-Hydroxyrisperidone (Cmax).15.6 ng/mLGeometric Coefficient of Variation 41.9
Risperidone 2 mgPK of 9-Hydroxyrisperidone (Cmax).15.5 ng/mLGeometric Coefficient of Variation 12.1
Risperidone 4 mgPK of 9-Hydroxyrisperidone (Cmax).17.5 ng/mLGeometric Coefficient of Variation 37.8
Overall RisperidonePK of 9-Hydroxyrisperidone (Cmax).16.9 ng/mLGeometric Coefficient of Variation 53.3
LYN-005 28 mg (A)PK of 9-Hydroxyrisperidone (Cmax).16.0 ng/mLGeometric Coefficient of Variation 282.3
LYN-005 28 mg (B)PK of 9-Hydroxyrisperidone (Cmax).24.7 ng/mLGeometric Coefficient of Variation 26
LYN-005 28 mg (C)PK of 9-Hydroxyrisperidone (Cmax).22.5 ng/mLGeometric Coefficient of Variation 91.1
Risperidone 4 mg (A)PK of 9-Hydroxyrisperidone (Cmax).39.6 ng/mLGeometric Coefficient of Variation 22.9
Risperidone 4 mg (B)PK of 9-Hydroxyrisperidone (Cmax).35.7 ng/mLGeometric Coefficient of Variation 24.5
Risperidone 4 mg (C)PK of 9-Hydroxyrisperidone (Cmax).36.2 ng/mLGeometric Coefficient of Variation 38.4
Secondary

PK of Risperidone (AUC0-24h, AUC0-168).

To characterize exposure (AUC0-24h, AUC0-168) of risperidone during the switch to LYN-005.

Time frame: Reported data was obtained following multiple dose administration of 3 weekly doses [(IR, Day-1), (ER, Week 1), ER Week 3)] of 14 or 28 mg risperidone LYN-005 capsules to assess extended release PK.

Population: All enrolled participants who received at least 1 dose of randomized study drug and had at least 1 post-dose quantifiable (or evaluable) PK concentration data

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
LYN-005 14mgPK of Risperidone (AUC0-24h, AUC0-168).AUC0-24h54.9 h*ng/mLGeometric Coefficient of Variation 81.5
LYN-005 28mgPK of Risperidone (AUC0-24h, AUC0-168).AUC0-24h65.8 h*ng/mLGeometric Coefficient of Variation 93.3
LYN-005 28mgPK of Risperidone (AUC0-24h, AUC0-168).AUC0-168227 h*ng/mLGeometric Coefficient of Variation 87.3
Overall LYN-005PK of Risperidone (AUC0-24h, AUC0-168).AUC0-168306 h*ng/mLGeometric Coefficient of Variation 67.1
Overall LYN-005PK of Risperidone (AUC0-24h, AUC0-168).AUC0-24h65.2 h*ng/mLGeometric Coefficient of Variation 66.6
Risperidone 2 mgPK of Risperidone (AUC0-24h, AUC0-168).AUC0-24h43.4 h*ng/mLGeometric Coefficient of Variation 131.2
Risperidone 4 mgPK of Risperidone (AUC0-24h, AUC0-168).AUC0-24h47.7 h*ng/mLGeometric Coefficient of Variation 103.5
Overall RisperidonePK of Risperidone (AUC0-24h, AUC0-168).AUC0-24h86.2 h*ng/mLGeometric Coefficient of Variation 58.1
LYN-005 28 mg (A)PK of Risperidone (AUC0-24h, AUC0-168).AUC0-24h113 h*ng/mLGeometric Coefficient of Variation 109.9
LYN-005 28 mg (B)PK of Risperidone (AUC0-24h, AUC0-168).AUC0-24h111 h*ng/mLGeometric Coefficient of Variation 88.1
LYN-005 28 mg (B)PK of Risperidone (AUC0-24h, AUC0-168).AUC0-168806 h*ng/mLGeometric Coefficient of Variation 91.2
LYN-005 28 mg (C)PK of Risperidone (AUC0-24h, AUC0-168).AUC0-168453 h*ng/mLGeometric Coefficient of Variation 276.8
LYN-005 28 mg (C)PK of Risperidone (AUC0-24h, AUC0-168).AUC0-24h119 h*ng/mLGeometric Coefficient of Variation 257.4
Risperidone 4 mg (A)PK of Risperidone (AUC0-24h, AUC0-168).AUC0-24h87.1 h*ng/mLGeometric Coefficient of Variation 67.2
Risperidone 4 mg (B)PK of Risperidone (AUC0-24h, AUC0-168).AUC0-24h82.4 h*ng/mLGeometric Coefficient of Variation 67
Risperidone 4 mg (C)PK of Risperidone (AUC0-24h, AUC0-168).AUC0-24h84.4 h*ng/mLGeometric Coefficient of Variation 80.5
Secondary

PK of Risperidone (Cmax).

To characterize exposure (Cmax) of risperidone during the switch to LYN-005.

Time frame: Reported data was obtained following multiple dose administration of 3 weekly doses [(IR, Day-1), (ER, Week 1), ER Week 3)] of 14 or 28 mg risperidone LYN-005 capsules to assess extended release PK.

Population: All enrolled participants who received at least 1 dose of randomized study drug and had at least 1 post-dose quantifiable (or evaluable) PK concentration data

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
LYN-005 14mgPK of Risperidone (Cmax).11.7 ng/mLGeometric Coefficient of Variation 58.2
LYN-005 28mgPK of Risperidone (Cmax).4.44 ng/mLGeometric Coefficient of Variation 95.3
Overall LYN-005PK of Risperidone (Cmax).4.07 ng/mLGeometric Coefficient of Variation 59.1
Risperidone 2 mgPK of Risperidone (Cmax).9.97 ng/mLGeometric Coefficient of Variation 111
Risperidone 4 mgPK of Risperidone (Cmax).12.3 ng/mLGeometric Coefficient of Variation 40.5
Overall RisperidonePK of Risperidone (Cmax).15.6 ng/mLGeometric Coefficient of Variation 84.2
LYN-005 28 mg (A)PK of Risperidone (Cmax).21.2 ng/mLGeometric Coefficient of Variation 55.6
LYN-005 28 mg (B)PK of Risperidone (Cmax).6.87 ng/mLGeometric Coefficient of Variation 72.7
LYN-005 28 mg (C)PK of Risperidone (Cmax).7.39 ng/mLGeometric Coefficient of Variation 230.9
Risperidone 4 mg (A)PK of Risperidone (Cmax).17.0 ng/mLGeometric Coefficient of Variation 21.2
Risperidone 4 mg (B)PK of Risperidone (Cmax).13.5 ng/mLGeometric Coefficient of Variation 32.6
Risperidone 4 mg (C)PK of Risperidone (Cmax).14.0 ng/mLGeometric Coefficient of Variation 33

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026