Recent Updates
Recently added Catalysts

PF-04171327

Phase 2

Rheumatoid Arthritis | Small molecule | Immunology |Pfizer, Inc.|Last Updated: Sep 4, 2024

Success Probability

Subscribe to view

Market & Valuation

Subscribe to view

Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials2
Total Enrollment409

FDA Designations

No designations recorded

Clinical trial landscape

PF-04171327 · 6 trials · 3 indications

Phase 2 2Phase 1 4
NCT01393639Study Comparing Doses Of An Experimental Glucocorticoid Compound To Prednisone And Placebo In Rheumatoid ArthritisRheumatoid Arthritis
COMPLETED323 Analytics
NCT00938587A Study Of PF-04171327 In The Treatment Of The Signs And Symptoms Of Rheumatoid ArthritisRheumatoid Arthritis
COMPLETED86 Analytics
PHASE2COMPLETED
Study Comparing Doses Of An Experimental Glucocorticoid Compound To Prednisone And Placebo In Rheumatoid Arthritis
Rheumatoid ArthritisUnlock trial analytics
PHASE2COMPLETED
A Study Of PF-04171327 In The Treatment Of The Signs And Symptoms Of Rheumatoid Arthritis
Rheumatoid ArthritisUnlock trial analytics

Study Endpoints

Primary Endpoints

Percentage of Participants Achieving a 20% Improvement in American College of Rheumatology (ACR) Criteria at Week 8
Week 8

ACR20 response: greater than or equal to (≥) 20 percent (%) improvement in tender joint count; ≥ 20% improvement in swollen joint count; and ≥ 20% improvement in at least 3 of 5 remaining ACR core measures: participant assessment of pain; participant global assessment of disease activity; physician global assessment of disease activity; self-assessed disability (disability index of the Health Assessment Questionnaire \[HAQ\]); and C-Reactive Protein (CRP).

Mean Percent Change From Baseline in 0 Hour Procollagen Type 1 N Terminal Propeptide (P1NP) at Week 8 (Comparisons to Prednisone 5 mg)
Week 8

Change from baseline in P1NP at week 8 is presented in this outcome measure.

Mean Percent Change From Baseline in 0 Hour Urinary N Telopeptide/Urinary Creatinine (uNTx/uCr) at Week 8 (Comparisons to Prednisone 5 mg)
Week 8

Change from baseline in uNTx/uCr at week 8 is presented in this outcome measure.

Change From Baseline in Disease Activity Score Based on 28-Joints Count and C-Reactive Protein (4 Variables) (DAS28-4 [CRP]) at Day 14
Baseline, Day 14

DAS28-4 (CRP) examines progression or improvement of RA. It was assessed from swollen joint count (SJC) and tender joint count (TJC) using the 28 joints count, CRP (normal range of CRP is less than (\<) 10 milligram per liter \[mg/L\], decrease in the level of CRP indicates reduction in inflammation) and participant global assessment (PGA) of disease activity (participant global assessment of diseases condition scores ranging from 0 \[very well condition\] to 100 \[very poor condition\], higher scores indicated greater affectation due to disease activity). Total DAS28-4 (CRP) transformed score range: 0 (least severe) to 10 (most severe), higher scores indicate more severe disease activity. DAS28-4 (CRP) scores: less than equal to (\<=) 3.2 implied low disease activity; greater than (\>) 3.2 to 5.1 implied moderate to high disease activity.

Plasma pharmacokinetic parameters for PF-00251802 : Cmax
Day 1 to Day 4 in each period of Cohort A
Plasma pharmacokinetic parameters for PF-00251802 : Tmax
Day 1 to Day 4 in each period of Cohort A
Plasma pharmacokinetic parameters for PF00251802 : AUC(0-last)
Day 1 to Day 4 in each period of Cohort A
Plasma pharmacokinetic parameters for PF-00251802 : As data permit AUC(0-inf)
Day 1 to Day 4 in each period of Cohort A
Plasma pharmacokinetic parameters for PF-00251802 : As data permit t1/2
Day 1 to Day 4 in each period of Cohort A
Plasma pharmacokinetic parameters for N-oxide metabolite (PF-04015475): Cmax
Day 1 to Day 4 in each period of Cohort A
Plasma pharmacokinetic parameters for N-oxide metabolite (PF-04015475): Tmax
Day 1 to Day 4 in each period of Cohort A
Plasma pharmacokinetic parameters for N-oxide metabolite (PF-04015475): AUC(0-last)
Day 1 to Day 4 in each period of Cohort A
Plasma pharmacokinetic parameters for N-oxide metabolite (PF-04015475): As data permit AUC(0-inf)
Day 1 to Day 4 in each period of Cohort A
Plasma pharmacokinetic parameters for N-oxide metabolite (PF-04015475): As data permit t1/2
Day 1 to Day 4 in each period of Cohort A
Plasma pharmacokinetic parameters for PF-00251802: Cmax for Day 1 and Day 12
Day 1 to Day 15 in Cohort B
Plasma pharmacokinetic parameters for PF-00251802: Tmax for Day 1 and Day 12
Day 1 to Day 15 in Cohort B
Plasma pharmacokinetic parameters for PF-00251802: AUCtau for Day 1 and Day 12
Day 1 to Day 15 in Cohort B
Plasma pharmacokinetic parameters for PF-00251802: As data permit t1/2 for Day12
Day 1 to Day 15 in Cohort B
Plasma pharmacokinetic parameters for PF-00251802: As data permit Rac (accumulation ratio = Day 12 AUCtau/Day 1 AUCtau) for Day12
Day 1 to Day 15 in Cohort B
Plasma pharmacokinetic parameters for PF-00251802: Ctrough
Day 1 to Day 15 in Cohort B
Plasma pharmacokinetic parameters for N-oxide metabolite (PF-04015475): Cmax for Day 1 and Day 12
Day 1 to Day 15 in Cohort B
Plasma pharmacokinetic parameters for N-oxide metabolite (PF-04015475): Tmax for Day 1 and Day 12
Day 1 to Day 15 in Cohort B
Plasma pharmacokinetic parameters for N-oxide metabolite (PF-04015475): AUCtau for Day 1 and Day 12
Day 1 to Day 15 in Cohort B
Plasma pharmacokinetic parameters for N-oxide metabolite (PF-04015475): As data permit t1/2 for Day12
Day 1 to Day 15 in Cohort B
Plasma pharmacokinetic parameters for N-oxide metabolite (PF-04015475): As data permit Rac (accumulation ratio = Day 12 AUCtau/Day 1 AUCtau) for Day12
Day 1 to Day 15 in Cohort B
Plasma pharmacokinetic parameters for N-oxide metabolite (PF-04015475): Ctrough
Day 1 to Day 15 in Cohort B
Fold change in AUC (0-4h) relative to no treatment baseline for plasma glucose, plasma insulin, and plasma C-peptide
4 hours
AUCinf of midazolam
17 days
Safety and tolerability of multiple doses of PF-04171327
14 days
Determination of pharmacokinetic parameters of PF-04171327 after multiple doses
14 days
Assessment of the pharmacodynamic effects of PF-04171327 on chemical and metabolic biomarkers
14 days
Evaluation of the pharmacokinetic parameters of a single 10 mg dose of PF-04171327 tablet
1 day

Secondary Endpoints

Percentage of Participants Achieving ACR20 Response at Weeks 2, 4, and 12 (Comparisons to Placebo, and Prednisone 10 mg)
Weeks 2, 4, and 12 (taper period)
Percentage of Participants Achieving ACR50 Response at Weeks 2, 4, 6, 8 and 12 (Comparisons to Placebo, and Prednisone 10 mg)
Weeks 2, 4, 6, 8, and 12 (taper period)
Percentage of Participants Achieving ACR70 Response at Weeks 2, 4, 6, 8 and 12 (Comparisons to Placebo, and Prednisone 10 mg)
Weeks 2, 4, 6, 8, and 12 (taper period)
Unlock Study Endpoints

Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
PF-04171327 1 mg QDEXPERIMENTAL -
PF-04171327 5 mg QDEXPERIMENTAL -
PF-04171327 10 mg QDEXPERIMENTAL -
PF-04171327 15 mg QDEXPERIMENTAL -
prednisone 5 mg QDACTIVE_COMPARATOR -
prednisone 10 mg QDACTIVE_COMPARATOR -
placeboPLACEBO_COMPARATOR -
PF-04171327 10 mgEXPERIMENTAL -
PF-04171327 25 mgEXPERIMENTAL -
PrednisoneACTIVE_COMPARATOR -
Single doseEXPERIMENTAL -
Multiple doseEXPERIMENTAL -
(Part 1) 25 mg PF-04171327 predosed at -8 hours prior to OGTTEXPERIMENTAL -
(Part 1) 25 mg PF-04171327 predosed at -12 hours prior to OGTTEXPERIMENTAL -
(Part 1) 5 mg PrednisoneACTIVE_COMPARATOR5 mg prednisone tablet predosed at 8 hours prior to Oral Glucose Tolerance Test (OGTT)
(Part 2) 3 mg PF-04171327EXPERIMENTAL -
(Part 2) 10 mg PF-04171327EXPERIMENTAL -
(Part 2) 5 mg PrednisoneACTIVE_COMPARATOR -
(Part 2) 20 mg PrednisoneACTIVE_COMPARATOR -
PF-04171327 and MidazolamOTHER -
PF-04173127EXPERIMENTAL -
PrednisoloneACTIVE_COMPARATOR -
Solution PlaceboSHAM_COMPARATOR -
PF-04171327 TabletEXPERIMENTAL -

Interventions

NameTypeDescription
PF-04171327DRUG1 mg tablet once daily (QD) for 8 weeks
prednisoneDRUG5 mg capsule once daily for 8 weeks
placeboOTHERplacebo (tablet or capsule) once daily (QD) for 8 weeks
PF-04171327 10 mgDRUGPF-04171327 10 mg tablet every day for 14 days
Prednisone PlaceboOTHERPlacebo for Prednisone 5 mg tablet every day for 14 days
PF-04171327 25 mgDRUGPF-04171327 25 mg tablet every day for 14 days
Prednisone 5 mgDRUGPrednisone 5 mg tablet every day for 14 days
Placebo for PF-04171327OTHERPlacebo for PF-04171327 every day for 14 days
Midazolam 2 mgDRUGMidazolam oral syrup 2mg dose administered once on Day 1 and once on Day 15
PrednisoloneDRUGOral doses of prednisolone (5, 10, and 20 mg) will be administered to the first three cohorts. The fourth cohort will receive between 1 and 20 mg to be determined after the third cohort completes dosing. If an additional cohort is required, the dose selected will not exceed 40 mg. Prednisolone tablets will be administered once daily for 14 days
Placebo SolutionDRUGPlacebo solution will be administered to those volunteers who are randomized to the placebo or prednisolone arms. This will be administered orally each day for 14 days.
PF-04171327 TabletDRUGA single 10 mg dose of PF-04171327 tablet formulation will be administered orally to volunteers in Part 2 of this study.
Unlock Study Design Details

Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites93

Inclusion Criteria: * Subjects must have documented rheumatoid arthritis with a duration of at least 3 months as determined by the investigator using standardly accepted criteria, must have been receiving methotrexate for at least 3 months to treat their rheumatoid arthritis, and must be free of an...

Countries:United StatesBulgariaColombiaCzechiaGermanyHungaryIndiaMalaysiaMexicoPolandRomaniaRussiaSerbiaSlovakiaSouth AfricaSouth KoreaSpainUkraineHong KongSingaporeTaiwanTurkey (Türkiye)Belgium
Unlock Eligibility Criteria

Frequently asked questions about PF-04171327

What is PF-04171327 used for?

PF-04171327 is an investigational small molecule being developed by Pfizer for rheumatoid arthritis. It has been studied in healthy volunteers to evaluate its safety, tolerability, and pharmacokinetics. The drug is in Phase 1 clinical development and is not approved for any indication.

Who makes PF-04171327?

PF-04171327 is being developed by Pfizer, Inc., a biopharmaceutical company traded on the New York Stock Exchange under the ticker symbol PFE. The drug is currently in Phase 1 clinical trials.

What phase is PF-04171327 in?

PF-04171327 is in Phase 1 clinical development. It has completed two Phase 1 trials in healthy volunteers, with a total enrollment of 409 participants across all studies. The drug is investigational and has not been approved by regulatory authorities.

What clinical trials is PF-04171327 in?

PF-04171327 has been studied in four Phase 1 clinical trials: NCT00812825, NCT00987038, NCT01199900, and NCT01362673. These trials evaluated multiple-dose escalation, drug interactions with midazolam, effects on carbohydrate metabolism, and pharmacokinetics in Japanese and Western subjects.

Is PF-04171327 the same as prednisone?

No, PF-04171327 is not the same as prednisone. In one clinical trial, PF-04171327 was compared with prednisone to assess their effects on carbohydrate metabolism. PF-04171327 is a separate investigational compound being developed by Pfizer.