Recent Updates
Recently added Catalysts

PCS499

Phase 2

Necrobiosis Lipoidica | Small molecule | Dermatology |Processa Pharmaceuticals, Inc.|Trials Updated: Oct 22, 2026

PCS499 development status

Highest phase Phase 2
Registered trials 3 across 1 sponsor since Oct 2018

PCS499 target and mechanism

ModalitySmall molecule

Also known as deuterated pentoxifylline analog

Success Probability

Subscribe to view

Market & Valuation

Subscribe to view

Trial Design

UNCONTROLLED
Total Trials1
Total Enrollment12

FDA Designations

No designations recorded

PCS499 clinical trials

PCS499 · 1 trial · 1 indication

Phase 2 1
NCT03698864A Study to Evaluate the Safety and Tolerability of PCS499 for the Treatment of Necrobiosis LipoidicaNecrobiosis Lipoidica
COMPLETED12 Analytics
PHASE2COMPLETED
A Study to Evaluate the Safety and Tolerability of PCS499 for the Treatment of Necrobiosis Lipoidica
Necrobiosis LipoidicaUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of Participants With Adverse Events
12 months

Number of Participants with Adverse Events/Serious Adverse Events (by type, severity, and relatedness)

Unlock Study Endpoints

Study Design & Arms

AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
PCS499 900mg twice a dayEXPERIMENTALdeuterated pentoxifylline analog dosed twice a day at 900 mg

Interventions

NameTypeDescription
PCS499DRUGPCS499 900mg twice a day with food
Unlock Study Design Details

Eligibility Criteria

Age Range18 Years to 80 Years
SexALL
Healthy VolunteersNo
Study Sites2

Inclusion Criteria: 1. Male or female patients age 18 to 80 years of age, inclusive, at Screening. 2. Biopsy-confirmed diagnosis of NL. Biopsies of continually active lesions performed outside of this clinical study will need to be reviewed and the diagnosis confirmed by the study pathologist. For ...

Countries:United States
Unlock Eligibility Criteria

Frequently asked questions about PCS499

What is PCS499 used for?

PCS499 is being developed for the treatment of necrobiosis lipoidica, a chronic inflammatory skin condition. It is an investigational small molecule from Processa Pharmaceuticals, Inc. that has been studied in a Phase 2 clinical trial. It is not approved for commercial use and remains in clinical development.

Who is developing PCS499?

PCS499 is being developed by Processa Pharmaceuticals, Inc., a biopharmaceutical company that trades under the ticker symbol PCSA. The company is advancing the asset as a small molecule candidate in dermatology, specifically for necrobiosis lipoidica.

What phase is PCS499 in?

PCS499 is in Phase 2 clinical development. A Phase 2 study evaluating the safety and tolerability of PCS499 for necrobiosis lipoidica has been completed. The drug is investigational and has not been approved by the FDA for any indication.

What clinical trials is PCS499 in?

PCS499 has been studied in one clinical trial, NCT03698864, titled A Study to Evaluate the Safety and Tolerability of PCS499 for the Treatment of Necrobiosis Lipoidica. The Phase 2 trial enrolled 12 participants in the United States and has been completed. It was an uncontrolled study without randomization or blinding.

Is PCS499 FDA approved?

No, PCS499 is not FDA approved. It is an investigational small molecule in Phase 2 clinical development for necrobiosis lipoidica. The only completed trial, NCT03698864, evaluated safety and tolerability in 12 participants, and further clinical development would be required before any regulatory review.