Trial Outcomes & Findings for Study of ATI-450 Plus Methotrexate (MTX) vs MTX Alone in Patients With Moderate to Severe RA (NCT NCT04247815)
NCT ID: NCT04247815
Last Updated: 2023-03-29
Results Overview
Safety and tolerability reported as Adverse Events (AEs). AEs will be coded with the Medical Dictionary for Regulatory Activities (MedDRA) version 23.0. AEs will be presented by system organ class and preferred term in frequency tables.
COMPLETED
PHASE2
25 participants
Baseline through Day 114
2023-03-29
Participant Flow
Participant milestones
| Measure |
ATI-450 Plus Methotrexate
ATI-450 50mg oral tablet BID with a stable weekly dose of Methotrexate
ATI-450: Oral, small molecule MK2 inhibitor
Methotrexate: 7.5 mg to 25 mg weekly
|
Placebo Plus Methotrexate
Placebo oral tablet BID with a stable weekly dose of Methotrexate
Placebo oral tablet: Placebo tablet manufactured to match ATI-450 in appearance
Methotrexate: 7.5 mg to 25 mg weekly
|
|---|---|---|
|
Overall Study
STARTED
|
16
|
3
|
|
Overall Study
COMPLETED
|
14
|
2
|
|
Overall Study
NOT COMPLETED
|
2
|
1
|
Reasons for withdrawal
| Measure |
ATI-450 Plus Methotrexate
ATI-450 50mg oral tablet BID with a stable weekly dose of Methotrexate
ATI-450: Oral, small molecule MK2 inhibitor
Methotrexate: 7.5 mg to 25 mg weekly
|
Placebo Plus Methotrexate
Placebo oral tablet BID with a stable weekly dose of Methotrexate
Placebo oral tablet: Placebo tablet manufactured to match ATI-450 in appearance
Methotrexate: 7.5 mg to 25 mg weekly
|
|---|---|---|
|
Overall Study
Adverse Event
|
1
|
0
|
|
Overall Study
Withdrawal by Subject
|
1
|
0
|
|
Overall Study
Protocol Violation
|
0
|
1
|
Baseline Characteristics
Study of ATI-450 Plus Methotrexate (MTX) vs MTX Alone in Patients With Moderate to Severe RA
Baseline characteristics by cohort
| Measure |
ATI-450 Plus Methotrexate
n=16 Participants
ATI-450 50mg oral tablet BID with a stable weekly dose of Methotrexate
ATI-450: Oral, small molecule MK2 inhibitor
Methotrexate: 7.5 mg to 25 mg weekly
|
Placebo Plus Methotrexate
n=3 Participants
Placebo oral tablet BID with a stable weekly dose of Methotrexate
Placebo oral tablet: Placebo tablet manufactured to match ATI-450 in appearance
Methotrexate: 7.5 mg to 25 mg weekly
|
Total
n=19 Participants
Total of all reporting groups
|
|---|---|---|---|
|
Age, Customized
|
55.9 years
STANDARD_DEVIATION 9.93 • n=5 Participants
|
55.3 years
STANDARD_DEVIATION 6.81 • n=7 Participants
|
55.8 years
STANDARD_DEVIATION 9.34 • n=5 Participants
|
|
Sex: Female, Male
Female
|
11 Participants
n=5 Participants
|
3 Participants
n=7 Participants
|
14 Participants
n=5 Participants
|
|
Sex: Female, Male
Male
|
5 Participants
n=5 Participants
|
0 Participants
n=7 Participants
|
5 Participants
n=5 Participants
|
|
Ethnicity (NIH/OMB)
Hispanic or Latino
|
4 Participants
n=5 Participants
|
0 Participants
n=7 Participants
|
4 Participants
n=5 Participants
|
|
Ethnicity (NIH/OMB)
Not Hispanic or Latino
|
12 Participants
n=5 Participants
|
3 Participants
n=7 Participants
|
15 Participants
n=5 Participants
|
|
Ethnicity (NIH/OMB)
Unknown or Not Reported
|
0 Participants
n=5 Participants
|
0 Participants
n=7 Participants
|
0 Participants
n=5 Participants
|
|
Region of Enrollment
United States
|
16 participants
n=5 Participants
|
3 participants
n=7 Participants
|
19 participants
n=5 Participants
|
|
Weight (kg)
|
92.74 kg
STANDARD_DEVIATION 25.504 • n=5 Participants
|
98.93 kg
STANDARD_DEVIATION 14.616 • n=7 Participants
|
93.72 kg
STANDARD_DEVIATION 23.899 • n=5 Participants
|
|
Height (cm)
|
166.94 cm
STANDARD_DEVIATION 12.648 • n=5 Participants
|
164.43 cm
STANDARD_DEVIATION 3.092 • n=7 Participants
|
166.54 cm
STANDARD_DEVIATION 11.630 • n=5 Participants
|
|
BMI (kg/m2)
|
33.37 kg/m2
STANDARD_DEVIATION 8.829 • n=5 Participants
|
36.53 kg/m2
STANDARD_DEVIATION 4.737 • n=7 Participants
|
33.87 kg/m2
STANDARD_DEVIATION 8.298 • n=5 Participants
|
PRIMARY outcome
Timeframe: Baseline through Day 114Population: The Safety population consisted of patients who receive at least 1 dose of study drug. This set was used for the safety data summaries and baseline characteristic summaries. This set was analyzed as treated.
Safety and tolerability reported as Adverse Events (AEs). AEs will be coded with the Medical Dictionary for Regulatory Activities (MedDRA) version 23.0. AEs will be presented by system organ class and preferred term in frequency tables.
Outcome measures
| Measure |
ATI-450 Plus Methotrexate
n=16 Participants
ATI-450 50mg oral tablet BID with a stable weekly dose of Methotrexate
ATI-450: Oral, small molecule MK2 inhibitor
Methotrexate: 7.5 mg to 25 mg weekly
|
Placebo Plus Methotrexate
n=3 Participants
Placebo oral tablet BID with a stable weekly dose of Methotrexate
Placebo oral tablet: Placebo tablet manufactured to match ATI-450 in appearance
Methotrexate: 7.5 mg to 25 mg weekly
|
|---|---|---|
|
The Primary Outcome Measure is the Determination of the Safety and Tolerability of ATI-450 Plus Methotrexate in Patients With Moderate to Severe Rheumatoid Arthritis: Adverse Events (AEs)
|
8 Participants
|
2 Participants
|
SECONDARY outcome
Timeframe: Baseline through Day 114Population: The Per-Protocol (PP) population consisted of all patients who completed their Day 84 visit and had valid hsCRP values for at least 6 of the 7 scheduled collection times. This set was analyzed as treated.
Median percent change from baseline in high sensitivity C-reactive protein (hsCRP) levels over time
Outcome measures
| Measure |
ATI-450 Plus Methotrexate
n=15 Participants
ATI-450 50mg oral tablet BID with a stable weekly dose of Methotrexate
ATI-450: Oral, small molecule MK2 inhibitor
Methotrexate: 7.5 mg to 25 mg weekly
|
Placebo Plus Methotrexate
n=2 Participants
Placebo oral tablet BID with a stable weekly dose of Methotrexate
Placebo oral tablet: Placebo tablet manufactured to match ATI-450 in appearance
Methotrexate: 7.5 mg to 25 mg weekly
|
|---|---|---|
|
Percent Change in (hsCRP) Levels Over Time
Week 1
|
-75.00 Percent Change from Baseline hsCRP
Interval -97.3 to 11.0
|
-16.50 Percent Change from Baseline hsCRP
Interval -34.9 to 1.9
|
|
Percent Change in (hsCRP) Levels Over Time
Week 2
|
-72.40 Percent Change from Baseline hsCRP
Interval -96.3 to 129.4
|
15.50 Percent Change from Baseline hsCRP
Interval -66.7 to 97.7
|
|
Percent Change in (hsCRP) Levels Over Time
Week 4
|
-51.10 Percent Change from Baseline hsCRP
Interval -96.6 to 285.3
|
-50.20 Percent Change from Baseline hsCRP
Interval -81.2 to -19.2
|
|
Percent Change in (hsCRP) Levels Over Time
Week 6
|
-57.60 Percent Change from Baseline hsCRP
Interval -96.6 to 306.2
|
3.00 Percent Change from Baseline hsCRP
Interval -29.2 to 35.2
|
|
Percent Change in (hsCRP) Levels Over Time
Week 8
|
-74.20 Percent Change from Baseline hsCRP
Interval -92.9 to 63.3
|
78.50 Percent Change from Baseline hsCRP
Interval 9.6 to 147.4
|
|
Percent Change in (hsCRP) Levels Over Time
Week 12
|
-42.60 Percent Change from Baseline hsCRP
Interval -97.0 to 263.7
|
7.30 Percent Change from Baseline hsCRP
Interval -5.6 to 20.2
|
|
Percent Change in (hsCRP) Levels Over Time
Follow-up
|
-15.60 Percent Change from Baseline hsCRP
Interval -83.1 to 143.2
|
-40.65 Percent Change from Baseline hsCRP
Interval -66.7 to -14.6
|
SECONDARY outcome
Timeframe: Baseline through Day 114Population: The Per-Protocol (PP) population consisted of all patients who completed their Day 84 visit and had valid hsCRP values for at least 6 of the 7 scheduled collection times. This set was analyzed as treated.
The Disease Activity Score using 28 joint count C-reactive protein DAS28 (CRP) consists of a composite score of the following variables: tender joint count, swollen joint count, CRP, and Patient's Global Assessment of Disease Activity score. The following equation will be used to calculate the DAS28 (CRP): DAS28 (CRP) = 0.56 √TJC28 + 0.28√SJC28 + 0.36ln(CRP +1) + 0.014×(Patient's Global Assessment of Disease Activity) + 0.96, where: * TJC28 = number of joints tender out of 28 * SJC28 = number of joints swollen out of 28 * CRP = C-reactive protein * Patient's Global Assessment of Disease Activity on a 100 mm visual analog scale (VAS) recorded by the patient Interpretation of the DAS28 (CRP) disease activity measure is on a scale of 0 to 9.4, where: \<2.6 is considered remission, ≥2.6 to \<3.2 is considered low/minimal, ≥3.2 to ≤5.1 is considered moderate, and \>5.1 is considered high/severe.
Outcome measures
| Measure |
ATI-450 Plus Methotrexate
n=15 Participants
ATI-450 50mg oral tablet BID with a stable weekly dose of Methotrexate
ATI-450: Oral, small molecule MK2 inhibitor
Methotrexate: 7.5 mg to 25 mg weekly
|
Placebo Plus Methotrexate
n=2 Participants
Placebo oral tablet BID with a stable weekly dose of Methotrexate
Placebo oral tablet: Placebo tablet manufactured to match ATI-450 in appearance
Methotrexate: 7.5 mg to 25 mg weekly
|
|---|---|---|
|
Change From Baseline in Disease Activity Score
Baseline
|
5.72 score on a scale
Standard Deviation 0.970
|
6.00 score on a scale
Standard Deviation 0.990
|
|
Change From Baseline in Disease Activity Score
Week 1
|
4.33 score on a scale
Standard Deviation 1.611
|
6.15 score on a scale
Standard Deviation 0.495
|
|
Change From Baseline in Disease Activity Score
Week 2
|
4.26 score on a scale
Standard Deviation 1.570
|
5.25 score on a scale
Standard Deviation 0.354
|
|
Change From Baseline in Disease Activity Score
Week 4
|
4.11 score on a scale
Standard Deviation 1.351
|
5.75 score on a scale
Standard Deviation 1.061
|
|
Change From Baseline in Disease Activity Score
Week 6
|
4.25 score on a scale
Standard Deviation 1.436
|
6.15 score on a scale
Standard Deviation 0.495
|
|
Change From Baseline in Disease Activity Score
Week 8
|
3.84 score on a scale
Standard Deviation 1.383
|
6.20 score on a scale
Standard Deviation 0.424
|
|
Change From Baseline in Disease Activity Score
Week 12
|
3.70 score on a scale
Standard Deviation 1.574
|
6.35 score on a scale
Standard Deviation 0.212
|
|
Change From Baseline in Disease Activity Score
Follow-up
|
4.21 score on a scale
Standard Deviation 1.705
|
4.95 score on a scale
Standard Deviation 0.495
|
SECONDARY outcome
Timeframe: Baseline through Day 114Population: The Per-Protocol (PP) population consisted of all patients who completed their Day 84 visit and had valid hsCRP values for at least 6 of the 7 scheduled collection times. This set was analyzed as treated.
Number and Percent of Patients Achieving DAS28-CRP \<2.6 over time
Outcome measures
| Measure |
ATI-450 Plus Methotrexate
n=15 Participants
ATI-450 50mg oral tablet BID with a stable weekly dose of Methotrexate
ATI-450: Oral, small molecule MK2 inhibitor
Methotrexate: 7.5 mg to 25 mg weekly
|
Placebo Plus Methotrexate
n=2 Participants
Placebo oral tablet BID with a stable weekly dose of Methotrexate
Placebo oral tablet: Placebo tablet manufactured to match ATI-450 in appearance
Methotrexate: 7.5 mg to 25 mg weekly
|
|---|---|---|
|
Number and Percent of Patients Achieving DAS28-CRP <2.6 Over Time
Baseline
|
0 Participants
|
0 Participants
|
|
Number and Percent of Patients Achieving DAS28-CRP <2.6 Over Time
Week 1
|
2 Participants
|
0 Participants
|
|
Number and Percent of Patients Achieving DAS28-CRP <2.6 Over Time
Week 2
|
3 Participants
|
0 Participants
|
|
Number and Percent of Patients Achieving DAS28-CRP <2.6 Over Time
Week 4
|
2 Participants
|
0 Participants
|
|
Number and Percent of Patients Achieving DAS28-CRP <2.6 Over Time
Week 6
|
1 Participants
|
0 Participants
|
|
Number and Percent of Patients Achieving DAS28-CRP <2.6 Over Time
Week 8
|
2 Participants
|
0 Participants
|
|
Number and Percent of Patients Achieving DAS28-CRP <2.6 Over Time
Week 12
|
3 Participants
|
0 Participants
|
|
Number and Percent of Patients Achieving DAS28-CRP <2.6 Over Time
Follow-up
|
4 Participants
|
0 Participants
|
SECONDARY outcome
Timeframe: Baseline through Day 84Population: The Per-Protocol (PP) population consisted of all patients who completed their Day 84 visit and had valid hsCRP values for at least 6 of the 7 scheduled collection times. This set was analyzed as treated.
Rheumatoid Arthritis Magnetic Resonance Imaging Score (RAMRIS) uses integer scales to measure the severity of disease at each bone or joint of interest in the hand and wrist, with separate scores given for osteitis and synovitis. Osteitis was scored at 25 bone locations: distal radius and ulna, 8 carpal bones (trapezium, trapezoid, capitate, hamate, pisiform, scaphoid, lunate, and triquetrum, as well as the 5 metacarpal bases), 5 metacarpal heads, and 5 proximal phalangeal bases. Score Definition 0 No osteitis 1. 1-33% involvement of original articular bone 2. 34-67% involvement of original articular bone 3. 68-100% involvement of original articular bone Synovitis was scored at the following 8 joint locations: distal radioulnar joint, radiocarpal joint, intercarpal / carpometacarpal joints 2-5, and 5 metacarpophalangeal (MCP) joints. Score Definition 0 No synovitis 1. 1-33% volume enhancement 2. 34-67% volume enhancement 3. 68-100% volume enhancement
Outcome measures
| Measure |
ATI-450 Plus Methotrexate
n=15 Participants
ATI-450 50mg oral tablet BID with a stable weekly dose of Methotrexate
ATI-450: Oral, small molecule MK2 inhibitor
Methotrexate: 7.5 mg to 25 mg weekly
|
Placebo Plus Methotrexate
n=2 Participants
Placebo oral tablet BID with a stable weekly dose of Methotrexate
Placebo oral tablet: Placebo tablet manufactured to match ATI-450 in appearance
Methotrexate: 7.5 mg to 25 mg weekly
|
|---|---|---|
|
Change From Baseline in RAMRIS Hand-Wrist Assessments (Osteitis Average)
|
0.97 Change in Osteitis average
Standard Deviation 1.943
|
0.88 Change in Osteitis average
Standard Deviation 1.237
|
SECONDARY outcome
Timeframe: Baseline through Day 84Population: The Per-Protocol (PP) population consisted of all patients who completed their Day 84 visit and had valid hsCRP values for at least 6 of the 7 scheduled collection times. This set was analyzed as treated.
Rheumatoid Arthritis Magnetic Resonance Imaging Score (RAMRIS) uses integer scales to measure the severity of disease at each bone or joint of interest in the hand and wrist, with separate scores given for osteitis and synovitis. Osteitis was scored at 25 bone locations: distal radius and ulna, 8 carpal bones (trapezium, trapezoid, capitate, hamate, pisiform, scaphoid, lunate, and triquetrum, as well as the 5 metacarpal bases), 5 metacarpal heads, and 5 proximal phalangeal bases. Score Definition 0 No osteitis 1. 1-33% involvement of original articular bone 2. 34-67% involvement of original articular bone 3. 68-100% involvement of original articular bone Synovitis was scored at the following 8 joint locations: distal radioulnar joint, radiocarpal joint, intercarpal / carpometacarpal joints 2-5, and 5 metacarpophalangeal (MCP) joints. Score Definition 0 No synovitis 1. 1-33% volume enhancement 2. 34-67% volume enhancement 3. 68-100% volume enhancement
Outcome measures
| Measure |
ATI-450 Plus Methotrexate
n=15 Participants
ATI-450 50mg oral tablet BID with a stable weekly dose of Methotrexate
ATI-450: Oral, small molecule MK2 inhibitor
Methotrexate: 7.5 mg to 25 mg weekly
|
Placebo Plus Methotrexate
n=2 Participants
Placebo oral tablet BID with a stable weekly dose of Methotrexate
Placebo oral tablet: Placebo tablet manufactured to match ATI-450 in appearance
Methotrexate: 7.5 mg to 25 mg weekly
|
|---|---|---|
|
Change From Baseline in RAMRIS Hand-Wrist Assessments (Synovitis Average)
|
0.08 Change in Synovitis average
Standard Deviation 1.894
|
1.50 Change in Synovitis average
Standard Deviation 2.121
|
SECONDARY outcome
Timeframe: Baseline through Day 114Population: The Per-Protocol (PP) population consisted of all patients who completed their Day 84 visit and had valid hsCRP values for at least 6 of the 7 scheduled collection times. This set was analyzed as treated.
American College of Rheumatology (ACR) 20 will be calculated at each treatment visit and the number and percent of subjects with a 20% improvement will be tabulated at each scheduled visit.
Outcome measures
| Measure |
ATI-450 Plus Methotrexate
n=15 Participants
ATI-450 50mg oral tablet BID with a stable weekly dose of Methotrexate
ATI-450: Oral, small molecule MK2 inhibitor
Methotrexate: 7.5 mg to 25 mg weekly
|
Placebo Plus Methotrexate
n=2 Participants
Placebo oral tablet BID with a stable weekly dose of Methotrexate
Placebo oral tablet: Placebo tablet manufactured to match ATI-450 in appearance
Methotrexate: 7.5 mg to 25 mg weekly
|
|---|---|---|
|
Number and Percent of Patients Achieving ACR 20
Week 4
|
8 Participants
|
0 Participants
|
|
Number and Percent of Patients Achieving ACR 20
Week 8
|
8 Participants
|
0 Participants
|
|
Number and Percent of Patients Achieving ACR 20
Week 12
|
9 Participants
|
0 Participants
|
|
Number and Percent of Patients Achieving ACR 20
Follow-up
|
6 Participants
|
1 Participants
|
SECONDARY outcome
Timeframe: Baseline through Day 114Population: The Per-Protocol (PP) population consisted of all patients who completed their Day 84 visit and had valid hsCRP values for at least 6 of the 7 scheduled collection times. This set was analyzed as treated.
American College of Rheumatology (ACR) 50 will be calculated at each treatment visit and the number and percent of subjects with a 50% improvement will be tabulated at each scheduled visit.
Outcome measures
| Measure |
ATI-450 Plus Methotrexate
n=15 Participants
ATI-450 50mg oral tablet BID with a stable weekly dose of Methotrexate
ATI-450: Oral, small molecule MK2 inhibitor
Methotrexate: 7.5 mg to 25 mg weekly
|
Placebo Plus Methotrexate
n=2 Participants
Placebo oral tablet BID with a stable weekly dose of Methotrexate
Placebo oral tablet: Placebo tablet manufactured to match ATI-450 in appearance
Methotrexate: 7.5 mg to 25 mg weekly
|
|---|---|---|
|
Number and Percent of Patients Achieving ACR 50
Week 4
|
2 Participants
|
0 Participants
|
|
Number and Percent of Patients Achieving ACR 50
Week 8
|
4 Participants
|
0 Participants
|
|
Number and Percent of Patients Achieving ACR 50
Week 12
|
5 Participants
|
0 Participants
|
|
Number and Percent of Patients Achieving ACR 50
Follow-up
|
3 Participants
|
0 Participants
|
SECONDARY outcome
Timeframe: Baseline through Day 114Population: The Per-Protocol (PP) population consisted of all patients who completed their Day 84 visit and had valid hsCRP values for at least 6 of the 7 scheduled collection times. This set was analyzed as treated.
American College of Rheumatology (ACR) 70 will be calculated at each treatment visit and the number and percent of subjects with a 70% improvement will be tabulated at each scheduled visit.
Outcome measures
| Measure |
ATI-450 Plus Methotrexate
n=15 Participants
ATI-450 50mg oral tablet BID with a stable weekly dose of Methotrexate
ATI-450: Oral, small molecule MK2 inhibitor
Methotrexate: 7.5 mg to 25 mg weekly
|
Placebo Plus Methotrexate
n=2 Participants
Placebo oral tablet BID with a stable weekly dose of Methotrexate
Placebo oral tablet: Placebo tablet manufactured to match ATI-450 in appearance
Methotrexate: 7.5 mg to 25 mg weekly
|
|---|---|---|
|
Number and Percent of Patients Achieving ACR 70
Week 4
|
0 Participants
|
0 Participants
|
|
Number and Percent of Patients Achieving ACR 70
Week 8
|
3 Participants
|
0 Participants
|
|
Number and Percent of Patients Achieving ACR 70
Week 12
|
3 Participants
|
0 Participants
|
|
Number and Percent of Patients Achieving ACR 70
Follow-up
|
0 Participants
|
0 Participants
|
SECONDARY outcome
Timeframe: Day 1 through Day Day 84Population: The PK population consisted of all patients who received at least 1 dose of study drug and provided at least 1 plasma concentration value. This set was analyzed as treated.
Outcome measures
| Measure |
ATI-450 Plus Methotrexate
n=16 Participants
ATI-450 50mg oral tablet BID with a stable weekly dose of Methotrexate
ATI-450: Oral, small molecule MK2 inhibitor
Methotrexate: 7.5 mg to 25 mg weekly
|
Placebo Plus Methotrexate
Placebo oral tablet BID with a stable weekly dose of Methotrexate
Placebo oral tablet: Placebo tablet manufactured to match ATI-450 in appearance
Methotrexate: 7.5 mg to 25 mg weekly
|
|---|---|---|
|
Assessment of ATI-450 Concentration (ng/mL)
Day 84 (2 Hours Postdose)
|
293.00 ATI-450 concentration (ng/mL)
Standard Deviation 98.643
|
—
|
|
Assessment of ATI-450 Concentration (ng/mL)
Day 1 (2 Hours Postdose)
|
225.87 ATI-450 concentration (ng/mL)
Standard Deviation 78.603
|
—
|
|
Assessment of ATI-450 Concentration (ng/mL)
Day 7 (Predose)
|
163.97 ATI-450 concentration (ng/mL)
Standard Deviation 85.538
|
—
|
|
Assessment of ATI-450 Concentration (ng/mL)
Day 14 (Predose)
|
131.51 ATI-450 concentration (ng/mL)
Standard Deviation 55.175
|
—
|
|
Assessment of ATI-450 Concentration (ng/mL)
Day 28 (Predose)
|
135.67 ATI-450 concentration (ng/mL)
Standard Deviation 84.454
|
—
|
|
Assessment of ATI-450 Concentration (ng/mL)
Day 42 (Predose)
|
170.84 ATI-450 concentration (ng/mL)
Standard Deviation 99.863
|
—
|
|
Assessment of ATI-450 Concentration (ng/mL)
Day 56 (Predose)
|
153.45 ATI-450 concentration (ng/mL)
Standard Deviation 89.092
|
—
|
|
Assessment of ATI-450 Concentration (ng/mL)
Day 84 (Predose)
|
124.71 ATI-450 concentration (ng/mL)
Standard Deviation 69.437
|
—
|
Adverse Events
ATI-450 Plus Methotrexate
Placebo Plus Methotrexate
Serious adverse events
| Measure |
ATI-450 Plus Methotrexate
n=16 participants at risk
ATI-450 50mg oral tablet BID with a stable weekly dose of Methotrexate
ATI-450: Oral, small molecule MK2 inhibitor
Methotrexate: 7.5 mg to 25 mg weekly
|
Placebo Plus Methotrexate
n=3 participants at risk
Placebo oral tablet BID with a stable weekly dose of Methotrexate
Placebo oral tablet: Placebo tablet manufactured to match ATI-450 in appearance
Methotrexate: 7.5 mg to 25 mg weekly
|
|---|---|---|
|
Infections and infestations
COVID-19 pneumonia
|
6.2%
1/16 • Number of events 1 • Baseline to Day 114
|
0.00%
0/3 • Baseline to Day 114
|
Other adverse events
| Measure |
ATI-450 Plus Methotrexate
n=16 participants at risk
ATI-450 50mg oral tablet BID with a stable weekly dose of Methotrexate
ATI-450: Oral, small molecule MK2 inhibitor
Methotrexate: 7.5 mg to 25 mg weekly
|
Placebo Plus Methotrexate
n=3 participants at risk
Placebo oral tablet BID with a stable weekly dose of Methotrexate
Placebo oral tablet: Placebo tablet manufactured to match ATI-450 in appearance
Methotrexate: 7.5 mg to 25 mg weekly
|
|---|---|---|
|
Cardiac disorders
Palpitations
|
6.2%
1/16 • Number of events 1 • Baseline to Day 114
|
0.00%
0/3 • Baseline to Day 114
|
|
Cardiac disorders
Ventricular extrasystoles
|
6.2%
1/16 • Number of events 1 • Baseline to Day 114
|
0.00%
0/3 • Baseline to Day 114
|
|
Gastrointestinal disorders
Dental caries
|
6.2%
1/16 • Number of events 1 • Baseline to Day 114
|
33.3%
1/3 • Number of events 1 • Baseline to Day 114
|
|
Gastrointestinal disorders
Constipation
|
6.2%
1/16 • Number of events 1 • Baseline to Day 114
|
0.00%
0/3 • Baseline to Day 114
|
|
Gastrointestinal disorders
Mouth ulceration
|
6.2%
1/16 • Number of events 1 • Baseline to Day 114
|
0.00%
0/3 • Baseline to Day 114
|
|
Injury, poisoning and procedural complications
Urinary tract infection
|
12.5%
2/16 • Number of events 2 • Baseline to Day 114
|
0.00%
0/3 • Baseline to Day 114
|
|
Infections and infestations
Ear infection
|
6.2%
1/16 • Number of events 1 • Baseline to Day 114
|
0.00%
0/3 • Baseline to Day 114
|
|
Infections and infestations
Sinusitis
|
6.2%
1/16 • Number of events 1 • Baseline to Day 114
|
0.00%
0/3 • Baseline to Day 114
|
|
Injury, poisoning and procedural complications
Ligament sprain
|
6.2%
1/16 • Number of events 1 • Baseline to Day 114
|
0.00%
0/3 • Baseline to Day 114
|
|
Injury, poisoning and procedural complications
Muscle strain
|
0.00%
0/16 • Baseline to Day 114
|
33.3%
1/3 • Number of events 1 • Baseline to Day 114
|
|
Injury, poisoning and procedural complications
Skin abrasion
|
6.2%
1/16 • Number of events 1 • Baseline to Day 114
|
0.00%
0/3 • Baseline to Day 114
|
|
Investigations
Blood cholesterol increased
|
6.2%
1/16 • Number of events 1 • Baseline to Day 114
|
0.00%
0/3 • Baseline to Day 114
|
|
Investigations
Blood creatine phosphokinase increased
|
6.2%
1/16 • Number of events 1 • Baseline to Day 114
|
0.00%
0/3 • Baseline to Day 114
|
|
Investigations
Blood pressure increased
|
6.2%
1/16 • Number of events 1 • Baseline to Day 114
|
0.00%
0/3 • Baseline to Day 114
|
|
Investigations
Electrocardiogram abnormal
|
6.2%
1/16 • Number of events 1 • Baseline to Day 114
|
0.00%
0/3 • Baseline to Day 114
|
|
Investigations
Low density lipoprotein increased
|
6.2%
1/16 • Number of events 1 • Baseline to Day 114
|
0.00%
0/3 • Baseline to Day 114
|
|
Investigations
White blood cell count increased
|
6.2%
1/16 • Number of events 1 • Baseline to Day 114
|
0.00%
0/3 • Baseline to Day 114
|
|
Metabolism and nutrition disorders
Hypokalemia
|
6.2%
1/16 • Number of events 1 • Baseline to Day 114
|
0.00%
0/3 • Baseline to Day 114
|
|
Skin and subcutaneous tissue disorders
Rash erythematous
|
6.2%
1/16 • Number of events 1 • Baseline to Day 114
|
0.00%
0/3 • Baseline to Day 114
|
|
Vascular disorders
Essential hypertension
|
6.2%
1/16 • Number of events 1 • Baseline to Day 114
|
0.00%
0/3 • Baseline to Day 114
|
|
Infections and infestations
COVID-19 pneumonia
|
6.2%
1/16 • Number of events 1 • Baseline to Day 114
|
0.00%
0/3 • Baseline to Day 114
|
Additional Information
Results disclosure agreements
- Principal investigator is a sponsor employee
- Publication restrictions are in place