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A Study to Investigate Safety, Tolerability, and PK of Oral Doses of TCK-276 in Patients With Rheumatoid Arthritis

A Phase 1, Randomized, Placebo-controlled, Double-blind, Multiple Ascending Dose Study to Investigate Safety, Tolerability, and Pharmacokinetics of Oral Doses of TCK-276 in Patients With Rheumatoid Arthritis

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05437419
Enrollment
32
Registered
2022-06-29
Start date
2022-08-10
Completion date
2023-07-27
Last updated
2024-10-15

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

Conditions

Rheumatoid Arthritis

Keywords

Multiple Ascending Dose, autoimmune disease, Disease modifying antirheumatic drugs (DMARD)

Brief summary

The study is to evaluate the safety, tolerability, and pharmacokinetic (PK) of multiple orally administered TCK-276 in both males and females with Rheumatoid Arthritis (RA).

Detailed description

This is a Phase 1, multi-center, double-blind, randomized, placebo-controlled, multiple ascending dose (MAD) study. The study will consist of a Screening Visit (Days -1 to Day 10), Treatment duration (up to 11 days) and a Follow-up/end of treatment (EOT) visit. This MAD study will consist of 4 cohorts of 8 patients (6 active treatment and 2 matching placebo, or a 3:1 ratio), each receiving an oral dose of TCK-276 or matching placebo for 7 days (once daily (QD) under fed condition). The first cohort will be divided into 2 subgroups to implement the sentinel dosing approach. The study duration is approximately 42 days.

Interventions

DRUGTCK-276

Patients will receive an oral dose of TCK-276 QD under fed conditions from Day 1 to Day 7.

DRUGTCK-276 Placebo

Patients will receive an oral dose of TCK-276 matching placebo QD under fed conditions from Day 1 to Day 7.

Sponsors

Parexel
CollaboratorINDUSTRY
Teijin America, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 64 Years
Healthy volunteers
No

Inclusion criteria

* Diagnosis of RA and meeting the 2010 American College of Rheumatology/European League Against Rheumatism classification criteria for RA. * Patients between the ages of 18 and 64 years, inclusive, at the Screening Visit. * Female patient must be not pregnant, not breast feeding and one of the following conditions need to apply: 1. Of non-childbearing potential based on documented surgical treatment or post-menopausal, meaning patient had spontaneous amenorrhea for at least 12 months without alternate medical cause prior to Screening Visit and follicle stimulating hormone (FSH) \> 40 U/mL at the Screening Visit. 2. Of childbearing potential and using a highly effective method of contraception and agrees to remain on a highly effective method from the time of signing the informed consent form (ICF) until 21 days after the last dose. * Male patient must agree to stay abstinent or must use together with his female partner(s) a form of highly effective contraceptive (failure rate of \< 1% per year) from the time of signing the ICF until up to 3 months after the last dose of the study drug. * Nonsmokers (or other nicotine use) as determined by history and by negative urine cotinine concentration at the Screening Visit and at Admission. * Body mass index (BMI) between 18.5 and 32.0 kg/m2, inclusive, at the Screening Visit. * Patient is required to have completed a COVID-19 vaccine regimen within no more than 5 months prior to screening to be eligible for the study. * Permitted concomitant medications for any reason, must be on a stable dose. * Permitted medications include: anti-malarials; nonsteroidal anti-inflammatory drugs including selective cyclooxygenase-2 inhibitors at approved dosage, and low dose oral corticosteroids; methotrexate concomitantly with folic acid or folinic acid.

Exclusion criteria

* Female patients who are breastfeeding or have a positive urine pregnancy test. * Patients who are unable to eat the prescribed meals during the stay at the site; vegetarian or vegan. * Patient has a history of significant drug allergy. * Patient has used a study drug, any prohibited medication(s), over-the-counter (OTC) medications, vitamins, dietary and herbal supplements. * Patient has a history of active suicidal ideation, or any psychiatric disorders that will affect the patient's ability to participate in the study. * Patient has a current or recent history of uncontrolled, clinically significant infectious, hematological, renal, endocrine, pulmonary, gastrointestinal, cardiovascular, hepatic, psychiatric, neurologic, or allergic disease. * Patient with any of the laboratory abnormalities as per reference. * Patient has a history of alcohol and/or drug abuse within 24 weeks. * Patient has positive results for drug testing and breath alcohol test. * Regular consumption of alcohol within 6 months prior to the Screening Visit. * Patient has positive test for hepatitis B surface antigen (HBsAg), anti-hepatitis B core (HBc) antibodies, hepatitis C virus (HCV) antibody, and/or human immunodeficiency virus (HIV) antibody at Screening Visit. * Patient has QT interval corrected for heart rate (QTc) using Fridericia's correction (QTcF) \> 450 ms for males or QTcF \> 470 ms for females either at the Screening Visit or Admission, based on safety 12-lead electrocardiogram (ECG). Patient has Screening or Admission ECG with second- or third-degree atrioventricular block, bundle branch block, arrhythmia (but not sinus arrhythmia or supraventricular premature beats), or illegible QT interval. * Patient has history or evidence of cardiopathy, acute coronary syndrome, hypertrophic cardiomyopathy, myocarditis or QT prolongation syndrome. * Patient is unwilling to abstain from drinks and foods containing alcohol, grapefruit, or caffeine * Patient has donated blood or experienced acute blood loss (including plasmapheresis) of greater than 500 mL within 90 days prior to the first dose of study drug. * Patients with a known immunodeficiency disorder. Have a history of a major organ transplant or hematopoietic stem cell/marrow transplant. * Patients with infections requiring treatment or hospitalization within 14 days prior to the Screening Visit, parenteral antimicrobial therapy within 60 days prior to the Screening Visit, infected joint prosthesis; history of herpes zoster, active herpes simplex, or herpes simplex on suppressive therapy. * Patient has a chronic hepatic disease or hepatic impairment. * Patient has a history of Mycobacterium tuberculosis or positive interferon gamma release assay for tuberculosis (IGRA-TB) or abnormal chest X-ray (for positive IGRA-TB patients). * Patient has a history of any lymphoproliferative disorder. * Patient has a history of COVID-19 unless fully recovered with no sequelae for 14 days. * Patient who had a severe course of COVID-19 (extracorporeal membrane oxygenation, mechanically ventilated). * Patient who has recent exposure to someone who has COVID-19 symptoms or positive test result. * Patient who has a positive reverse transcription polymerase chain reaction (RT-PCR) test for Severe Acute Respiratory Syndrome Corona Virus 2 (SARS-CoV-2). * Patient who has clinical signs and symptoms consistent with SARS-CoV-2 infection. * Patients may not receive any live/attenuated vaccine from 30 days prior to the Screening Visit until Day 14 Follow-up Visit. * COVID-19 vaccine should not be given 1 week prior to the Screening Visit. * Patients with malignancy or history of malignancy except adequately treated or excised non-metastatic basal cell or squamous cell cancer of the skin or cervical carcinoma in situ. Previous treatment with total lymphoid irradiation. * History of recurrent inflammatory joint disease other than RA or history of any other autoimmune rheumatic diseases other than Sjogren's syndrome. * Major surgery within 30 days prior to the Screening Visit or patients with planned surgery. * Patients who have an abnormal chest X-ray for interstitial lung disease (ILD) and/or patients with history of ILD. * History of fainting or family history of sudden death. * Patient has any disorder that would interfere with the absorption, distribution, metabolism or excretion of study drug. * Patient has a history of deep vein thrombosis and/or pulmonary embolism. * Patient has poor venous access.

Design outcomes

Primary

MeasureTime frameDescription
Number ot Participants With Treatment Emergent Adverse Events42 days (duration of study)To evaluate the safety and tolerability of multiple oral doses of TCK-276 or placebo in patients with rheumatoid arthritis (RA)

Secondary

MeasureTime frameDescription
Vz/F: Apparent Volume of Distribution Based on Terminal Phase (Parent Only)Day 1 and Day 7To evaluate Vz/F as PK variables of TCK-276 in patients with RA after multiple ascending dose (MAD) administration
MRT0-inf: Mean Residence Time Extrapolated to InfinityDay 1 and Day 7To evaluate MRT0-inf as PK variables of TCK-276 and its metabolite in patients with RA after multiple ascending dose (MAD) administration
Cmax: Plasma Concentrations of TCK-276 and TEI-W00595 (Metabolite)Day 1 and Day 7Cmax: Plasma Concentrations of TCK-276 and TEI-W00595 with time-concentration profile
Tmax: Time of Maximum Plasma Concentration Determined Directly From the Concentration-time ProfileDay 1 and Day 7To evaluate tmax as pharmacokinetic (PK) variables of TCK-276 and its metabolite in patients with RA after multiple ascending dose (MAD) administration
t½: Terminal Elimination Half-lifeDay 1 and Day 7To evaluate t½ as PK variables of TCK-276 and its metabolite in patients with RA after multiple ascending dose (MAD) administration
AUCtau: Area Under the Plasma Concentration-time Curve Over a Dosing Interval, Tau = 24 HoursDay 1 and Day 7To evaluate AUCtau as PK variables of TCK-276 and its metabolite in patients with RA after multiple ascending dose (MAD) administration
AUC0-inf: Area Under the Plasma Concentration Time Curve From Pre-dose (Time 0) Extrapolated to Infinite TimeDay 1 and Day 7AUC0-inf:Area under the plasma concentration time curve from pre-dose (time 0) extrapolated to infinite time (Days 1 and 7)
Clearance (CL)/F: Apparent Total Body Clearance (Parent Only)Day 1 and Day 7To evaluate CL/F as PK variables of TCK-276 in patients with RA after multiple ascending dose (MAD) administration
Racc (Cmax): Accumulation Ratio Based on CmaxDay 1 and Day 7Racc (Cmax) calculated as Cmax on Day 7/Cmax on Day 1.
Metabolic Ratio (MR) for CmaxDay 1 and Day 7Molar metabolic ratio of Cmax calculated as (Cmax \[metabolite\] × molecular weight of parent)/(Cmax \[parent\] × molecular weight of metabolite).
MR for Area Under the Plasma Concentration-time Curve (AUC)TauDay 1 and Day 7Molar metabolic ratio of AUC calculated as (AUC \[metabolite\] × molecular weight of parent)/(AUC \[parent\] × molecular weight of metabolite). To evaluate MR AUC as PK variables of TCK-276 and its metabolite in patients with RA after multiple ascending dose (MAD) administration
MR for Area Under the Plasma Concentration-time Curve (AUC)0-infDay 1 and Day 7Molar metabolic ratio of AUC calculated as (AUC \[metabolite\] × molecular weight of parent)/(AUC \[parent\] × molecular weight of metabolite) 0-inf. To evaluate MR AUC 0-inf as PK variables of TCK-276 and its metabolite in patients with RA after multiple ascending dose (MAD) administration
Ae 0-24: Amount of Study Drug Excreted Unchanged in the Urine (Days 1 and 7)Day 1 and Day 7Ae 0-24: Amount of study drug excreted unchanged in the urine (Days 1 and 7) over 24 hours
Fe 0-24: Percentage of Study Drug Excreted Unchanged in the Urine (Days 1 and 7)Day 1 and Day 7Fe 0-24: Percentage of study drug excreted unchanged in the urine (Days 1 and 7) over 24 hours
Clearance Renal (CLr): Renal Clearance (Days 1 and 7)Day 1 and Day 7CLr: Renal clearance Day 1 and Day 7 (24 hours)
Ae 0-72: Amount of Study Drug Excreted Unchanged in the Urine (Day 7)Day 7 0-72 hoursAe 0-72: Amount of study drug excreted unchanged in the urine (Day 7) over a 72 hour period
Fe 0-72: Percentage of Study Drug Excreted Unchanged in the UrineDay 7 0-72 hoursFe 0-72: Percentage of study drug excreted unchanged in the urine on Day 7 (72 hours)
Racc (AUCtau): Accumulation Ratio Based on AUCtauDay 1 and Day 7Racc (AUCtau) calculated as AUCtau on Day 7/AUCtau on Day 1. To evaluate Racc (AUCtau) as PK variables of TCK-276 and its metabolite in patients with RA after multiple ascending dose (MAD) administration

Countries

United States

Participant flow

Participants by arm

ArmCount
Cohort 1
The patient will receive 10 mg of TCK-276 orally from Day 1 to Day 7 (once daily (QD) under fed conditions).
6
Cohort 2
The patient will receive 25 mg of TCK-276 orally from Day 1 to Day 7 (once daily (QD) under fed conditions).
6
Cohort 3
The patient will receive 75 mg of TCK-276 orally from Day 1 to Day 7 (once daily (QD) under fed conditions).
6
Cohort 4
The patient will receive 175 mg of TCK-276 orally from Day 1 to Day 7 (once daily (QD) under fed conditions).
6
Pooled Placebo Group
The patient will receive matching placebo orally from Day 1 to Day 7 (once daily (QD) under fed conditions).
8
Total32

Baseline characteristics

CharacteristicCohort 2Cohort 3Cohort 4Cohort 1Pooled Placebo GroupTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
6 Participants6 Participants6 Participants6 Participants8 Participants32 Participants
BMI27.605 kg/m2
STANDARD_DEVIATION 2.6567
29.278 kg/m2
STANDARD_DEVIATION 1.3073
29.438 kg/m2
STANDARD_DEVIATION 1.5542
28.035 kg/m2
STANDARD_DEVIATION 2.5991
27.219 kg/m2
STANDARD_DEVIATION 2.2859
28.247 kg/m2
STANDARD_DEVIATION 2.217
Ethnicity (NIH/OMB)
Hispanic or Latino
5 Participants5 Participants6 Participants5 Participants7 Participants28 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
1 Participants1 Participants0 Participants1 Participants1 Participants4 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Height163.03 cm
STANDARD_DEVIATION 5.8745
160.167 cm
STANDARD_DEVIATION 6.4936
165.533 cm
STANDARD_DEVIATION 11.661
163.5 cm
STANDARD_DEVIATION 3.6472
164.878 cm
STANDARD_DEVIATION 5.2737
163.515 cm
STANDARD_DEVIATION 6.8
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants0 Participants1 Participants1 Participants
Race (NIH/OMB)
Black or African American
1 Participants2 Participants0 Participants0 Participants1 Participants4 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
5 Participants4 Participants6 Participants6 Participants6 Participants27 Participants
Region of Enrollment
United States
6 participants6 participants6 participants6 participants8 participants32 participants
Sex: Female, Male
Female
6 Participants6 Participants5 Participants6 Participants6 Participants29 Participants
Sex: Female, Male
Male
0 Participants0 Participants1 Participants0 Participants2 Participants3 Participants
Weight73.252 kg
STANDARD_DEVIATION 6.6383
75.102 kg
STANDARD_DEVIATION 5.38
80.678 kg
STANDARD_DEVIATION 9.3768
74.950 kg
STANDARD_DEVIATION 7.5688
73.829 kg
STANDARD_DEVIATION 4.5924
75.454 kg
STANDARD_DEVIATION 6.851

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
deaths
Total, all-cause mortality
0 / 60 / 60 / 60 / 60 / 8
other
Total, other adverse events
2 / 62 / 62 / 61 / 62 / 8
serious
Total, serious adverse events
0 / 60 / 60 / 60 / 60 / 8

Outcome results

Primary

Number ot Participants With Treatment Emergent Adverse Events

To evaluate the safety and tolerability of multiple oral doses of TCK-276 or placebo in patients with rheumatoid arthritis (RA)

Time frame: 42 days (duration of study)

ArmMeasureValue (NUMBER)
Cohort 1Number ot Participants With Treatment Emergent Adverse Events2 participants
Cohort 2Number ot Participants With Treatment Emergent Adverse Events2 participants
Cohort 3Number ot Participants With Treatment Emergent Adverse Events2 participants
Cohort 4Number ot Participants With Treatment Emergent Adverse Events1 participants
Pooled Placebo GroupNumber ot Participants With Treatment Emergent Adverse Events2 participants
Secondary

Ae 0-24: Amount of Study Drug Excreted Unchanged in the Urine (Days 1 and 7)

Ae 0-24: Amount of study drug excreted unchanged in the urine (Days 1 and 7) over 24 hours

Time frame: Day 1 and Day 7

Population: One subject each from Cohorts 1 and 3 was excluded due to the occurrence of an event that met the definition of exclusion from the PK analysis.

ArmMeasureGroupValue (MEAN)Dispersion
Cohort 1Ae 0-24: Amount of Study Drug Excreted Unchanged in the Urine (Days 1 and 7)TCK-276 Day 10.194 mgStandard Deviation 0.0847
Cohort 1Ae 0-24: Amount of Study Drug Excreted Unchanged in the Urine (Days 1 and 7)TCK-276 Day 70.203 mgStandard Deviation 0.0847
Cohort 2Ae 0-24: Amount of Study Drug Excreted Unchanged in the Urine (Days 1 and 7)TCK-276 Day 71.68 mgStandard Deviation 2.46
Cohort 2Ae 0-24: Amount of Study Drug Excreted Unchanged in the Urine (Days 1 and 7)TCK-276 Day 10.529 mgStandard Deviation 0.318
Cohort 3Ae 0-24: Amount of Study Drug Excreted Unchanged in the Urine (Days 1 and 7)TCK-276 Day 12.02 mgStandard Deviation 1.19
Cohort 3Ae 0-24: Amount of Study Drug Excreted Unchanged in the Urine (Days 1 and 7)TCK-276 Day 71.47 mgStandard Deviation 0.537
Cohort 4Ae 0-24: Amount of Study Drug Excreted Unchanged in the Urine (Days 1 and 7)TCK-276 Day 12.04 mgStandard Deviation 1.14
Cohort 4Ae 0-24: Amount of Study Drug Excreted Unchanged in the Urine (Days 1 and 7)TCK-276 Day 72.07 mgStandard Deviation 0.781
Secondary

Ae 0-72: Amount of Study Drug Excreted Unchanged in the Urine (Day 7)

Ae 0-72: Amount of study drug excreted unchanged in the urine (Day 7) over a 72 hour period

Time frame: Day 7 0-72 hours

Population: One subject each from Cohorts 1 and 3 was excluded due to the occurrence of an event that met the definition of exclusion from the PK analysis.

ArmMeasureValue (MEAN)Dispersion
Cohort 1Ae 0-72: Amount of Study Drug Excreted Unchanged in the Urine (Day 7)0.229 mgStandard Deviation 0.0952
Cohort 2Ae 0-72: Amount of Study Drug Excreted Unchanged in the Urine (Day 7)2.05 mgStandard Deviation 3.28
Cohort 3Ae 0-72: Amount of Study Drug Excreted Unchanged in the Urine (Day 7)1.61 mgStandard Deviation 0.616
Cohort 4Ae 0-72: Amount of Study Drug Excreted Unchanged in the Urine (Day 7)2.21 mgStandard Deviation 0.868
Secondary

AUC0-inf: Area Under the Plasma Concentration Time Curve From Pre-dose (Time 0) Extrapolated to Infinite Time

AUC0-inf:Area under the plasma concentration time curve from pre-dose (time 0) extrapolated to infinite time (Days 1 and 7)

Time frame: Day 1 and Day 7

Population: One subject each from Cohorts 1 and 3 was excluded due to the occurrence of an event that met the definition of exclusion from the PK analysis.

ArmMeasureGroupValue (MEAN)Dispersion
Cohort 1AUC0-inf: Area Under the Plasma Concentration Time Curve From Pre-dose (Time 0) Extrapolated to Infinite TimeTCK-276 Day 1132 h*ng/mLStandard Deviation 23.6
Cohort 1AUC0-inf: Area Under the Plasma Concentration Time Curve From Pre-dose (Time 0) Extrapolated to Infinite TimeTCK-276 Day 7205 h*ng/mLStandard Deviation 43.5
Cohort 1AUC0-inf: Area Under the Plasma Concentration Time Curve From Pre-dose (Time 0) Extrapolated to Infinite TimeTEI-W00595 Day 174.2 h*ng/mLStandard Deviation 14.2
Cohort 1AUC0-inf: Area Under the Plasma Concentration Time Curve From Pre-dose (Time 0) Extrapolated to Infinite TimeTEI-W00595 Day 7105 h*ng/mLStandard Deviation 28.7
Cohort 2AUC0-inf: Area Under the Plasma Concentration Time Curve From Pre-dose (Time 0) Extrapolated to Infinite TimeTCK-276 Day 7426 h*ng/mLStandard Deviation 94
Cohort 2AUC0-inf: Area Under the Plasma Concentration Time Curve From Pre-dose (Time 0) Extrapolated to Infinite TimeTEI-W00595 Day 1246 h*ng/mLStandard Deviation 68.2
Cohort 2AUC0-inf: Area Under the Plasma Concentration Time Curve From Pre-dose (Time 0) Extrapolated to Infinite TimeTEI-W00595 Day 7295 h*ng/mLStandard Deviation 87.6
Cohort 2AUC0-inf: Area Under the Plasma Concentration Time Curve From Pre-dose (Time 0) Extrapolated to Infinite TimeTCK-276 Day 1390 h*ng/mLStandard Deviation 124
Cohort 3AUC0-inf: Area Under the Plasma Concentration Time Curve From Pre-dose (Time 0) Extrapolated to Infinite TimeTEI-W00595 Day 11010 h*ng/mLStandard Deviation 880
Cohort 3AUC0-inf: Area Under the Plasma Concentration Time Curve From Pre-dose (Time 0) Extrapolated to Infinite TimeTCK-276 Day 71380 h*ng/mLStandard Deviation 802
Cohort 3AUC0-inf: Area Under the Plasma Concentration Time Curve From Pre-dose (Time 0) Extrapolated to Infinite TimeTEI-W00595 Day 71050 h*ng/mLStandard Deviation 752
Cohort 3AUC0-inf: Area Under the Plasma Concentration Time Curve From Pre-dose (Time 0) Extrapolated to Infinite TimeTCK-276 Day 11230 h*ng/mLStandard Deviation 792
Cohort 4AUC0-inf: Area Under the Plasma Concentration Time Curve From Pre-dose (Time 0) Extrapolated to Infinite TimeTEI-W00595 Day 71480 h*ng/mLStandard Deviation 586
Cohort 4AUC0-inf: Area Under the Plasma Concentration Time Curve From Pre-dose (Time 0) Extrapolated to Infinite TimeTCK-276 Day 72680 h*ng/mLStandard Deviation 789
Cohort 4AUC0-inf: Area Under the Plasma Concentration Time Curve From Pre-dose (Time 0) Extrapolated to Infinite TimeTCK-276 Day 11830 h*ng/mLStandard Deviation 632
Cohort 4AUC0-inf: Area Under the Plasma Concentration Time Curve From Pre-dose (Time 0) Extrapolated to Infinite TimeTEI-W00595 Day 11590 h*ng/mLStandard Deviation 882
Secondary

AUCtau: Area Under the Plasma Concentration-time Curve Over a Dosing Interval, Tau = 24 Hours

To evaluate AUCtau as PK variables of TCK-276 and its metabolite in patients with RA after multiple ascending dose (MAD) administration

Time frame: Day 1 and Day 7

Population: One subject each from Cohorts 1 and 3 was excluded due to the occurrence of an event that met the definition of exclusion from the PK analysis.

ArmMeasureGroupValue (MEAN)Dispersion
Cohort 1AUCtau: Area Under the Plasma Concentration-time Curve Over a Dosing Interval, Tau = 24 HoursTCK-276 Day 1125 h*ng/mLStandard Deviation 20.3
Cohort 1AUCtau: Area Under the Plasma Concentration-time Curve Over a Dosing Interval, Tau = 24 HoursTCK-276 Day 7172 h*ng/mLStandard Deviation 32.8
Cohort 1AUCtau: Area Under the Plasma Concentration-time Curve Over a Dosing Interval, Tau = 24 HoursTEI-W00595 Day 170.3 h*ng/mLStandard Deviation 13.5
Cohort 1AUCtau: Area Under the Plasma Concentration-time Curve Over a Dosing Interval, Tau = 24 HoursTEI-W00595 Day 791.2 h*ng/mLStandard Deviation 15.4
Cohort 2AUCtau: Area Under the Plasma Concentration-time Curve Over a Dosing Interval, Tau = 24 HoursTCK-276 Day 7363 h*ng/mLStandard Deviation 48.6
Cohort 2AUCtau: Area Under the Plasma Concentration-time Curve Over a Dosing Interval, Tau = 24 HoursTEI-W00595 Day 7247 h*ng/mLStandard Deviation 59.1
Cohort 2AUCtau: Area Under the Plasma Concentration-time Curve Over a Dosing Interval, Tau = 24 HoursTCK-276 Day 1341 h*ng/mLStandard Deviation 68.1
Cohort 2AUCtau: Area Under the Plasma Concentration-time Curve Over a Dosing Interval, Tau = 24 HoursTEI-W00595 Day 1231 h*ng/mLStandard Deviation 65.4
Cohort 3AUCtau: Area Under the Plasma Concentration-time Curve Over a Dosing Interval, Tau = 24 HoursTCK-276 Day 11150 h*ng/mLStandard Deviation 653
Cohort 3AUCtau: Area Under the Plasma Concentration-time Curve Over a Dosing Interval, Tau = 24 HoursTEI-W00595 Day 7788 h*ng/mLStandard Deviation 566
Cohort 3AUCtau: Area Under the Plasma Concentration-time Curve Over a Dosing Interval, Tau = 24 HoursTEI-W00595 Day 1890 h*ng/mLStandard Deviation 718
Cohort 3AUCtau: Area Under the Plasma Concentration-time Curve Over a Dosing Interval, Tau = 24 HoursTCK-276 Day 71050 h*ng/mLStandard Deviation 520
Cohort 4AUCtau: Area Under the Plasma Concentration-time Curve Over a Dosing Interval, Tau = 24 HoursTEI-W00595 Day 71200 h*ng/mLStandard Deviation 414
Cohort 4AUCtau: Area Under the Plasma Concentration-time Curve Over a Dosing Interval, Tau = 24 HoursTCK-276 Day 11530 h*ng/mLStandard Deviation 660
Cohort 4AUCtau: Area Under the Plasma Concentration-time Curve Over a Dosing Interval, Tau = 24 HoursTCK-276 Day 72220 h*ng/mLStandard Deviation 542
Cohort 4AUCtau: Area Under the Plasma Concentration-time Curve Over a Dosing Interval, Tau = 24 HoursTEI-W00595 Day 11270 h*ng/mLStandard Deviation 772
Secondary

Clearance (CL)/F: Apparent Total Body Clearance (Parent Only)

To evaluate CL/F as PK variables of TCK-276 in patients with RA after multiple ascending dose (MAD) administration

Time frame: Day 1 and Day 7

Population: One subject each from Cohorts 1 and 3 was excluded due to the occurrence of an event that met the definition of exclusion from the PK analysis.

ArmMeasureGroupValue (MEAN)Dispersion
Cohort 1Clearance (CL)/F: Apparent Total Body Clearance (Parent Only)TCK-276 Day 177.5 L/hStandard Deviation 14
Cohort 1Clearance (CL)/F: Apparent Total Body Clearance (Parent Only)TCK-276 Day 759.5 L/hStandard Deviation 10.1
Cohort 2Clearance (CL)/F: Apparent Total Body Clearance (Parent Only)TCK-276 Day 770.0 L/hStandard Deviation 9.62
Cohort 2Clearance (CL)/F: Apparent Total Body Clearance (Parent Only)TCK-276 Day 168.9 L/hStandard Deviation 20.8
Cohort 3Clearance (CL)/F: Apparent Total Body Clearance (Parent Only)TCK-276 Day 1103 L/hStandard Deviation 102
Cohort 3Clearance (CL)/F: Apparent Total Body Clearance (Parent Only)TCK-276 Day 7102 L/hStandard Deviation 83.2
Cohort 4Clearance (CL)/F: Apparent Total Body Clearance (Parent Only)TCK-276 Day 1103 L/hStandard Deviation 31.1
Cohort 4Clearance (CL)/F: Apparent Total Body Clearance (Parent Only)TCK-276 Day 783.0 L/hStandard Deviation 21
Secondary

Clearance Renal (CLr): Renal Clearance (Days 1 and 7)

CLr: Renal clearance Day 1 and Day 7 (24 hours)

Time frame: Day 1 and Day 7

Population: One subject each from Cohorts 1 and 3 was excluded due to the occurrence of an event that met the definition of exclusion from the PK analysis.

ArmMeasureGroupValue (MEAN)Dispersion
Cohort 1Clearance Renal (CLr): Renal Clearance (Days 1 and 7)TCK-276 Day 11.67 L/hStandard Deviation 0.442
Cohort 1Clearance Renal (CLr): Renal Clearance (Days 1 and 7)TCK-276 Day 71.15 L/hStandard Deviation 0.422
Cohort 2Clearance Renal (CLr): Renal Clearance (Days 1 and 7)TCK-276 Day 71.47 L/hStandard Deviation 1.02
Cohort 2Clearance Renal (CLr): Renal Clearance (Days 1 and 7)TCK-276 Day 11.89 L/hStandard Deviation 0.814
Cohort 3Clearance Renal (CLr): Renal Clearance (Days 1 and 7)TCK-276 Day 12.09 L/hStandard Deviation 1.09
Cohort 3Clearance Renal (CLr): Renal Clearance (Days 1 and 7)TCK-276 Day 71.41 L/hStandard Deviation 0.576
Cohort 4Clearance Renal (CLr): Renal Clearance (Days 1 and 7)TCK-276 Day 10.985 L/hStandard Deviation 0.286
Cohort 4Clearance Renal (CLr): Renal Clearance (Days 1 and 7)TCK-276 Day 70.850 L/hStandard Deviation 0.351
Secondary

Cmax: Plasma Concentrations of TCK-276 and TEI-W00595 (Metabolite)

Cmax: Plasma Concentrations of TCK-276 and TEI-W00595 with time-concentration profile

Time frame: Day 1 and Day 7

Population: One subject each from Cohorts 1 and 3 was excluded due to the occurrence of an event that met the definition of exclusion from the PK analysis.

ArmMeasureGroupValue (MEAN)Dispersion
Cohort 1Cmax: Plasma Concentrations of TCK-276 and TEI-W00595 (Metabolite)Cmax TCK-276 day 730.8 ng/mLStandard Deviation 13.4
Cohort 1Cmax: Plasma Concentrations of TCK-276 and TEI-W00595 (Metabolite)Cmax TCK-276 day 128.6 ng/mLStandard Deviation 22.4
Cohort 1Cmax: Plasma Concentrations of TCK-276 and TEI-W00595 (Metabolite)Cmax TEI-W00595 day 712.7 ng/mLStandard Deviation 4.55
Cohort 1Cmax: Plasma Concentrations of TCK-276 and TEI-W00595 (Metabolite)Cmax TEI-W00595 day 18.41 ng/mLStandard Deviation 4.98
Cohort 2Cmax: Plasma Concentrations of TCK-276 and TEI-W00595 (Metabolite)Cmax TCK-276 day 160.6 ng/mLStandard Deviation 27
Cohort 2Cmax: Plasma Concentrations of TCK-276 and TEI-W00595 (Metabolite)Cmax TCK-276 day 761.4 ng/mLStandard Deviation 20
Cohort 2Cmax: Plasma Concentrations of TCK-276 and TEI-W00595 (Metabolite)Cmax TEI-W00595 day 128.7 ng/mLStandard Deviation 9.2
Cohort 2Cmax: Plasma Concentrations of TCK-276 and TEI-W00595 (Metabolite)Cmax TEI-W00595 day 730.3 ng/mLStandard Deviation 8.47
Cohort 3Cmax: Plasma Concentrations of TCK-276 and TEI-W00595 (Metabolite)Cmax TCK-276 day 1195 ng/mLStandard Deviation 146
Cohort 3Cmax: Plasma Concentrations of TCK-276 and TEI-W00595 (Metabolite)Cmax TEI-W00595 day 193.6 ng/mLStandard Deviation 90.2
Cohort 3Cmax: Plasma Concentrations of TCK-276 and TEI-W00595 (Metabolite)Cmax TCK-276 day 7158 ng/mLStandard Deviation 76.1
Cohort 3Cmax: Plasma Concentrations of TCK-276 and TEI-W00595 (Metabolite)Cmax TEI-W00595 day 792.4 ng/mLStandard Deviation 60.3
Cohort 4Cmax: Plasma Concentrations of TCK-276 and TEI-W00595 (Metabolite)Cmax TCK-276 day 7402 ng/mLStandard Deviation 107
Cohort 4Cmax: Plasma Concentrations of TCK-276 and TEI-W00595 (Metabolite)Cmax TEI-W00595 day 1176 ng/mLStandard Deviation 98.5
Cohort 4Cmax: Plasma Concentrations of TCK-276 and TEI-W00595 (Metabolite)Cmax TEI-W00595 day 7161 ng/mLStandard Deviation 55.5
Cohort 4Cmax: Plasma Concentrations of TCK-276 and TEI-W00595 (Metabolite)Cmax TCK-276 day 1417 ng/mLStandard Deviation 222
Secondary

Fe 0-24: Percentage of Study Drug Excreted Unchanged in the Urine (Days 1 and 7)

Fe 0-24: Percentage of study drug excreted unchanged in the urine (Days 1 and 7) over 24 hours

Time frame: Day 1 and Day 7

Population: One subject each from Cohorts 1 and 3 was excluded due to the occurrence of an event that met the definition of exclusion from the PK analysis.

ArmMeasureGroupValue (MEAN)Dispersion
Cohort 1Fe 0-24: Percentage of Study Drug Excreted Unchanged in the Urine (Days 1 and 7)TCK-276 Day 11.94 percentage of drugStandard Deviation 0.847
Cohort 1Fe 0-24: Percentage of Study Drug Excreted Unchanged in the Urine (Days 1 and 7)TCK-276 Day 72.03 percentage of drugStandard Deviation 0.847
Cohort 2Fe 0-24: Percentage of Study Drug Excreted Unchanged in the Urine (Days 1 and 7)TCK-276 Day 72.33 percentage of drugStandard Deviation 1.67
Cohort 2Fe 0-24: Percentage of Study Drug Excreted Unchanged in the Urine (Days 1 and 7)TCK-276 Day 12.11 percentage of drugStandard Deviation 1.27
Cohort 3Fe 0-24: Percentage of Study Drug Excreted Unchanged in the Urine (Days 1 and 7)TCK-276 Day 71.96 percentage of drugStandard Deviation 0.716
Cohort 3Fe 0-24: Percentage of Study Drug Excreted Unchanged in the Urine (Days 1 and 7)TCK-276 Day 12.70 percentage of drugStandard Deviation 1.58
Cohort 4Fe 0-24: Percentage of Study Drug Excreted Unchanged in the Urine (Days 1 and 7)TCK-276 Day 71.19 percentage of drugStandard Deviation 0.446
Cohort 4Fe 0-24: Percentage of Study Drug Excreted Unchanged in the Urine (Days 1 and 7)TCK-276 Day 11.17 percentage of drugStandard Deviation 0.651
Secondary

Fe 0-72: Percentage of Study Drug Excreted Unchanged in the Urine

Fe 0-72: Percentage of study drug excreted unchanged in the urine on Day 7 (72 hours)

Time frame: Day 7 0-72 hours

Population: One subject each from Cohorts 1 and 3 was excluded due to the occurrence of an event that met the definition of exclusion from the PK analysis.

ArmMeasureValue (MEAN)Dispersion
Cohort 1Fe 0-72: Percentage of Study Drug Excreted Unchanged in the Urine2.29 percentage of drugStandard Deviation 0.952
Cohort 2Fe 0-72: Percentage of Study Drug Excreted Unchanged in the Urine2.45 percentage of drugStandard Deviation 1.7
Cohort 3Fe 0-72: Percentage of Study Drug Excreted Unchanged in the Urine2.15 percentage of drugStandard Deviation 0.822
Cohort 4Fe 0-72: Percentage of Study Drug Excreted Unchanged in the Urine1.26 percentage of drugStandard Deviation 0.496
Secondary

Metabolic Ratio (MR) for Cmax

Molar metabolic ratio of Cmax calculated as (Cmax \[metabolite\] × molecular weight of parent)/(Cmax \[parent\] × molecular weight of metabolite).

Time frame: Day 1 and Day 7

Population: One subject each from Cohorts 1 and 3 was excluded due to the occurrence of an event that met the definition of exclusion from the PK analysis.

ArmMeasureGroupValue (MEAN)Dispersion
Cohort 1Metabolic Ratio (MR) for CmaxDay 1 Metabolite vs Parent0.349 RatioStandard Deviation 0.166
Cohort 1Metabolic Ratio (MR) for CmaxDay 7 Metabolite vs Parent0.412 RatioStandard Deviation 0.106
Cohort 2Metabolic Ratio (MR) for CmaxDay 7 Metabolite vs Parent0.490 RatioStandard Deviation 0.115
Cohort 2Metabolic Ratio (MR) for CmaxDay 1 Metabolite vs Parent0.499 RatioStandard Deviation 0.191
Cohort 3Metabolic Ratio (MR) for CmaxDay 1 Metabolite vs Parent0.448 RatioStandard Deviation 0.19
Cohort 3Metabolic Ratio (MR) for CmaxDay 7 Metabolite vs Parent0.537 RatioStandard Deviation 0.147
Cohort 4Metabolic Ratio (MR) for CmaxDay 1 Metabolite vs Parent0.403 RatioStandard Deviation 0.115
Cohort 4Metabolic Ratio (MR) for CmaxDay 7 Metabolite vs Parent0.383 RatioStandard Deviation 0.0937
Secondary

MR for Area Under the Plasma Concentration-time Curve (AUC)0-inf

Molar metabolic ratio of AUC calculated as (AUC \[metabolite\] × molecular weight of parent)/(AUC \[parent\] × molecular weight of metabolite) 0-inf. To evaluate MR AUC 0-inf as PK variables of TCK-276 and its metabolite in patients with RA after multiple ascending dose (MAD) administration

Time frame: Day 1 and Day 7

Population: One subject each from Cohorts 1 and 3 was excluded due to the occurrence of an event that met the definition of exclusion from the PK analysis.

ArmMeasureGroupValue (MEAN)Dispersion
Cohort 1MR for Area Under the Plasma Concentration-time Curve (AUC)0-infMetabolite vs Parent Day 10.542 RatioStandard Deviation 0.0579
Cohort 1MR for Area Under the Plasma Concentration-time Curve (AUC)0-infMetabolite vs Parent Day 70.495 RatioStandard Deviation 0.0561
Cohort 2MR for Area Under the Plasma Concentration-time Curve (AUC)0-infMetabolite vs Parent Day 70.641 RatioStandard Deviation 0.0653
Cohort 2MR for Area Under the Plasma Concentration-time Curve (AUC)0-infMetabolite vs Parent Day 10.654 RatioStandard Deviation 0.0941
Cohort 3MR for Area Under the Plasma Concentration-time Curve (AUC)0-infMetabolite vs Parent Day 10.697 RatioStandard Deviation 0.2
Cohort 3MR for Area Under the Plasma Concentration-time Curve (AUC)0-infMetabolite vs Parent Day 70.677 RatioStandard Deviation 0.184
Cohort 4MR for Area Under the Plasma Concentration-time Curve (AUC)0-infMetabolite vs Parent Day 10.567 RatioStandard Deviation 0.0942
Cohort 4MR for Area Under the Plasma Concentration-time Curve (AUC)0-infMetabolite vs Parent Day 70.519 RatioStandard Deviation 0.103
Secondary

MR for Area Under the Plasma Concentration-time Curve (AUC)Tau

Molar metabolic ratio of AUC calculated as (AUC \[metabolite\] × molecular weight of parent)/(AUC \[parent\] × molecular weight of metabolite). To evaluate MR AUC as PK variables of TCK-276 and its metabolite in patients with RA after multiple ascending dose (MAD) administration

Time frame: Day 1 and Day 7

Population: One subject each from Cohorts 1 and 3 was excluded due to the occurrence of an event that met the definition of exclusion from the PK analysis.

ArmMeasureGroupValue (MEAN)Dispersion
Cohort 1MR for Area Under the Plasma Concentration-time Curve (AUC)TauMetabolite vs Parent Day 10.542 RatioStandard Deviation 0.0559
Cohort 1MR for Area Under the Plasma Concentration-time Curve (AUC)TauMetabolite vs Parent Day 70.514 RatioStandard Deviation 0.0489
Cohort 2MR for Area Under the Plasma Concentration-time Curve (AUC)TauMetabolite vs Parent Day 70.658 RatioStandard Deviation 0.0759
Cohort 2MR for Area Under the Plasma Concentration-time Curve (AUC)TauMetabolite vs Parent Day 10.656 RatioStandard Deviation 0.102
Cohort 3MR for Area Under the Plasma Concentration-time Curve (AUC)TauMetabolite vs Parent Day 10.669 RatioStandard Deviation 0.173
Cohort 3MR for Area Under the Plasma Concentration-time Curve (AUC)TauMetabolite vs Parent Day 70.675 RatioStandard Deviation 0.187
Cohort 4MR for Area Under the Plasma Concentration-time Curve (AUC)TauMetabolite vs Parent Day 10.540 RatioStandard Deviation 0.0959
Cohort 4MR for Area Under the Plasma Concentration-time Curve (AUC)TauMetabolite vs Parent Day 70.511 RatioStandard Deviation 0.0879
Secondary

MRT0-inf: Mean Residence Time Extrapolated to Infinity

To evaluate MRT0-inf as PK variables of TCK-276 and its metabolite in patients with RA after multiple ascending dose (MAD) administration

Time frame: Day 1 and Day 7

Population: One subject each from Cohorts 1 and 3 was excluded due to the occurrence of an event that met the definition of exclusion from the PK analysis.

ArmMeasureGroupValue (MEAN)Dispersion
Cohort 1MRT0-inf: Mean Residence Time Extrapolated to InfinityTCK-276 Day 17.65 hStandard Deviation 2.67
Cohort 1MRT0-inf: Mean Residence Time Extrapolated to InfinityTCK-276 Day 710.8 hStandard Deviation 1.42
Cohort 1MRT0-inf: Mean Residence Time Extrapolated to InfinityTEI-W00595 Day 19.09 hStandard Deviation 3.26
Cohort 1MRT0-inf: Mean Residence Time Extrapolated to InfinityTEI-W00595 Day 711.2 hStandard Deviation 2.25
Cohort 2MRT0-inf: Mean Residence Time Extrapolated to InfinityTCK-276 Day 711.3 hStandard Deviation 3.38
Cohort 2MRT0-inf: Mean Residence Time Extrapolated to InfinityTEI-W00595 Day 19.07 hStandard Deviation 2.4
Cohort 2MRT0-inf: Mean Residence Time Extrapolated to InfinityTEI-W00595 Day 712.2 hStandard Deviation 4.36
Cohort 2MRT0-inf: Mean Residence Time Extrapolated to InfinityTCK-276 Day 19.74 hStandard Deviation 5.36
Cohort 3MRT0-inf: Mean Residence Time Extrapolated to InfinityTEI-W00595 Day 19.66 hStandard Deviation 2.34
Cohort 3MRT0-inf: Mean Residence Time Extrapolated to InfinityTCK-276 Day 714.5 hStandard Deviation 6.71
Cohort 3MRT0-inf: Mean Residence Time Extrapolated to InfinityTEI-W00595 Day 715.5 hStandard Deviation 5.96
Cohort 3MRT0-inf: Mean Residence Time Extrapolated to InfinityTCK-276 Day 17.56 hStandard Deviation 2.11
Cohort 4MRT0-inf: Mean Residence Time Extrapolated to InfinityTEI-W00595 Day 712.9 hStandard Deviation 3.3
Cohort 4MRT0-inf: Mean Residence Time Extrapolated to InfinityTCK-276 Day 711.4 hStandard Deviation 2.81
Cohort 4MRT0-inf: Mean Residence Time Extrapolated to InfinityTCK-276 Day 16.46 hStandard Deviation 0.479
Cohort 4MRT0-inf: Mean Residence Time Extrapolated to InfinityTEI-W00595 Day 19.21 hStandard Deviation 3.14
Secondary

Racc (AUCtau): Accumulation Ratio Based on AUCtau

Racc (AUCtau) calculated as AUCtau on Day 7/AUCtau on Day 1. To evaluate Racc (AUCtau) as PK variables of TCK-276 and its metabolite in patients with RA after multiple ascending dose (MAD) administration

Time frame: Day 1 and Day 7

Population: One subject each from Cohorts 1 and 3 was excluded due to the occurrence of an event that met the definition of exclusion from the PK analysis.

ArmMeasureGroupValue (MEAN)Dispersion
Cohort 1Racc (AUCtau): Accumulation Ratio Based on AUCtauTCK-276 Day 7 vs Day 11.37 RatioStandard Deviation 0.146
Cohort 1Racc (AUCtau): Accumulation Ratio Based on AUCtauTEI-W00595 Day 7 vs Day 11.33 RatioStandard Deviation 0.17
Cohort 2Racc (AUCtau): Accumulation Ratio Based on AUCtauTEI-W00595 Day 7 vs Day 11.07 RatioStandard Deviation 0.252
Cohort 2Racc (AUCtau): Accumulation Ratio Based on AUCtauTCK-276 Day 7 vs Day 11.12 RatioStandard Deviation 0.286
Cohort 3Racc (AUCtau): Accumulation Ratio Based on AUCtauTCK-276 Day 7 vs Day 10.960 RatioStandard Deviation 0.231
Cohort 3Racc (AUCtau): Accumulation Ratio Based on AUCtauTEI-W00595 Day 7 vs Day 10.971 RatioStandard Deviation 0.256
Cohort 4Racc (AUCtau): Accumulation Ratio Based on AUCtauTCK-276 Day 7 vs Day 11.43 RatioStandard Deviation 0.288
Cohort 4Racc (AUCtau): Accumulation Ratio Based on AUCtauTEI-W00595 Day 7 vs Day 11.13 RatioStandard Deviation 0.357
Secondary

Racc (Cmax): Accumulation Ratio Based on Cmax

Racc (Cmax) calculated as Cmax on Day 7/Cmax on Day 1.

Time frame: Day 1 and Day 7

Population: One subject each from Cohorts 1 and 3 was excluded due to the occurrence of an event that met the definition of exclusion from the PK analysis.

ArmMeasureGroupValue (MEAN)Dispersion
Cohort 1Racc (Cmax): Accumulation Ratio Based on CmaxTCK-276 Day 7 vs Day 11.72 RatioStandard Deviation 1.69
Cohort 1Racc (Cmax): Accumulation Ratio Based on CmaxTEI-W00595 Day 7 vs Day 11.85 RatioStandard Deviation 1.09
Cohort 2Racc (Cmax): Accumulation Ratio Based on CmaxTEI-W00595 Day 7 vs Day 11.08 RatioStandard Deviation 0.242
Cohort 2Racc (Cmax): Accumulation Ratio Based on CmaxTCK-276 Day 7 vs Day 11.22 RatioStandard Deviation 0.736
Cohort 3Racc (Cmax): Accumulation Ratio Based on CmaxTCK-276 Day 7 vs Day 11.19 RatioStandard Deviation 1.06
Cohort 3Racc (Cmax): Accumulation Ratio Based on CmaxTEI-W00595 Day 7 vs Day 11.26 RatioStandard Deviation 0.547
Cohort 4Racc (Cmax): Accumulation Ratio Based on CmaxTCK-276 Day 7 vs Day 11.21 RatioStandard Deviation 0.725
Cohort 4Racc (Cmax): Accumulation Ratio Based on CmaxTEI-W00595 Day 7 vs Day 11.10 RatioStandard Deviation 0.463
Secondary

t½: Terminal Elimination Half-life

To evaluate t½ as PK variables of TCK-276 and its metabolite in patients with RA after multiple ascending dose (MAD) administration

Time frame: Day 1 and Day 7

Population: One subject each from Cohorts 1 and 3 was excluded due to the occurrence of an event that met the definition of exclusion from the PK analysis.

ArmMeasureGroupValue (MEAN)Dispersion
Cohort 1t½: Terminal Elimination Half-lifeTCK-276 Day 16.61 hStandard Deviation 2.53
Cohort 1t½: Terminal Elimination Half-lifeTCK-276 Day 713.6 hStandard Deviation 5.46
Cohort 1t½: Terminal Elimination Half-lifeTEI-W00595 Day 14.78 hStandard Deviation 0.716
Cohort 1t½: Terminal Elimination Half-lifeTEI-W00595 Day 79.10 hStandard Deviation 5.73
Cohort 2t½: Terminal Elimination Half-lifeTCK-276 Day 711.4 hStandard Deviation 6.15
Cohort 2t½: Terminal Elimination Half-lifeTEI-W00595 Day 15.15 hStandard Deviation 1.6
Cohort 2t½: Terminal Elimination Half-lifeTEI-W00595 Day 710.7 hStandard Deviation 6.42
Cohort 2t½: Terminal Elimination Half-lifeTCK-276 Day 14.49 hStandard Deviation 1.36
Cohort 3t½: Terminal Elimination Half-lifeTEI-W00595 Day 15.53 hStandard Deviation 1.27
Cohort 3t½: Terminal Elimination Half-lifeTCK-276 Day 713.6 hStandard Deviation 7.73
Cohort 3t½: Terminal Elimination Half-lifeTEI-W00595 Day 712.8 hStandard Deviation 5.28
Cohort 3t½: Terminal Elimination Half-lifeTCK-276 Day 15.14 hStandard Deviation 0.937
Cohort 4t½: Terminal Elimination Half-lifeTEI-W00595 Day 711.7 hStandard Deviation 4.69
Cohort 4t½: Terminal Elimination Half-lifeTCK-276 Day 711.0 hStandard Deviation 4.39
Cohort 4t½: Terminal Elimination Half-lifeTCK-276 Day 17.13 hStandard Deviation 1.67
Cohort 4t½: Terminal Elimination Half-lifeTEI-W00595 Day 15.49 hStandard Deviation 1.28
Secondary

Tmax: Time of Maximum Plasma Concentration Determined Directly From the Concentration-time Profile

To evaluate tmax as pharmacokinetic (PK) variables of TCK-276 and its metabolite in patients with RA after multiple ascending dose (MAD) administration

Time frame: Day 1 and Day 7

Population: One subject each from Cohorts 1 and 3 was excluded due to the occurrence of an event that met the definition of exclusion from the PK analysis.

ArmMeasureGroupValue (MEDIAN)
Cohort 1Tmax: Time of Maximum Plasma Concentration Determined Directly From the Concentration-time ProfileTEI-W00595 Day 14 h
Cohort 1Tmax: Time of Maximum Plasma Concentration Determined Directly From the Concentration-time ProfileTCK-276 Day 72 h
Cohort 1Tmax: Time of Maximum Plasma Concentration Determined Directly From the Concentration-time ProfileTCK-276 Day 12 h
Cohort 1Tmax: Time of Maximum Plasma Concentration Determined Directly From the Concentration-time ProfileTEI-W00595 Day 74 h
Cohort 2Tmax: Time of Maximum Plasma Concentration Determined Directly From the Concentration-time ProfileTCK-276 Day 72.47 h
Cohort 2Tmax: Time of Maximum Plasma Concentration Determined Directly From the Concentration-time ProfileTCK-276 Day 13 h
Cohort 2Tmax: Time of Maximum Plasma Concentration Determined Directly From the Concentration-time ProfileTEI-W00595 Day 14 h
Cohort 2Tmax: Time of Maximum Plasma Concentration Determined Directly From the Concentration-time ProfileTEI-W00595 Day 73.5 h
Cohort 3Tmax: Time of Maximum Plasma Concentration Determined Directly From the Concentration-time ProfileTCK-276 Day 13 h
Cohort 3Tmax: Time of Maximum Plasma Concentration Determined Directly From the Concentration-time ProfileTEI-W00595 Day 73 h
Cohort 3Tmax: Time of Maximum Plasma Concentration Determined Directly From the Concentration-time ProfileTEI-W00595 Day 14 h
Cohort 3Tmax: Time of Maximum Plasma Concentration Determined Directly From the Concentration-time ProfileTCK-276 Day 72 h
Cohort 4Tmax: Time of Maximum Plasma Concentration Determined Directly From the Concentration-time ProfileTCK-276 Day 72.5 h
Cohort 4Tmax: Time of Maximum Plasma Concentration Determined Directly From the Concentration-time ProfileTEI-W00595 Day 73 h
Cohort 4Tmax: Time of Maximum Plasma Concentration Determined Directly From the Concentration-time ProfileTCK-276 Day 11.75 h
Cohort 4Tmax: Time of Maximum Plasma Concentration Determined Directly From the Concentration-time ProfileTEI-W00595 Day 13 h
Secondary

Vz/F: Apparent Volume of Distribution Based on Terminal Phase (Parent Only)

To evaluate Vz/F as PK variables of TCK-276 in patients with RA after multiple ascending dose (MAD) administration

Time frame: Day 1 and Day 7

Population: One subject each from Cohorts 1 and 3 was excluded due to the occurrence of an event that met the definition of exclusion from the PK analysis.

ArmMeasureGroupValue (MEAN)Dispersion
Cohort 1Vz/F: Apparent Volume of Distribution Based on Terminal Phase (Parent Only)TCK-276 Day 1702 LStandard Deviation 175
Cohort 1Vz/F: Apparent Volume of Distribution Based on Terminal Phase (Parent Only)TCK-276 Day 71150 LStandard Deviation 456
Cohort 2Vz/F: Apparent Volume of Distribution Based on Terminal Phase (Parent Only)TCK-276 Day 71150 LStandard Deviation 573
Cohort 2Vz/F: Apparent Volume of Distribution Based on Terminal Phase (Parent Only)TCK-276 Day 1457 LStandard Deviation 213
Cohort 3Vz/F: Apparent Volume of Distribution Based on Terminal Phase (Parent Only)TCK-276 Day 1813 LStandard Deviation 877
Cohort 3Vz/F: Apparent Volume of Distribution Based on Terminal Phase (Parent Only)TCK-276 Day 71510 LStandard Deviation 571
Cohort 4Vz/F: Apparent Volume of Distribution Based on Terminal Phase (Parent Only)TCK-276 Day 11010 LStandard Deviation 221
Cohort 4Vz/F: Apparent Volume of Distribution Based on Terminal Phase (Parent Only)TCK-276 Day 71280 LStandard Deviation 399

Source: ClinicalTrials.gov · Data processed: Feb 5, 2026