ClinicalTrials.Veeva

Menu

A Study of R3421 in Patients With Moderate to Severe Chronic Plaque Psoriasis.

Roche logo

Roche

Status and phase

Completed
Phase 2

Conditions

Psoriasis

Treatments

Drug: Placebo
Drug: RG3421 120mg
Drug: RG3421 20mg

Study type

Interventional

Funder types

Industry

Identifiers

NCT00504270
NS20454

Details and patient eligibility

About

This study will investigate the safety, efficacy and pharmacokinetics of R3421 in patients with moderate to severe chronic plaque psoriasis. Patients will be randomized to one of 3 treatment groups to receive once daily oral treatment with a)R3421 20mg, b)R3421 120mg, or c)placebo. The anticipated time on study treatment is <3 months, and the target sample size is <100 individuals.

Enrollment

66 patients

Sex

All

Ages

18 to 70 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • adult patients, 18-70 years of age;
  • medically stable, moderate to severe chronic plaque psoriasis.

Exclusion criteria

  • any skin condition which may interfere with evaluation of the effect of study medication on plaque lesions;
  • confounding or concomitant condition or treatment.

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

Double Blind

66 participants in 3 patient groups, including a placebo group

Placebo
Placebo Comparator group
Description:
po daily
Treatment:
Drug: Placebo
RG3421 120mg
Experimental group
Description:
120mg po daily
Treatment:
Drug: RG3421 120mg
RG3421 20mg
Experimental group
Description:
20mg po daily
Treatment:
Drug: RG3421 20mg

Trial contacts and locations

15

Loading...

Data sourced from clinicaltrials.gov

Clinical trials

Find clinical trialsTrials by location
© Copyright 2026 Veeva Systems