Organization (Industry)
Primus Pharmaceuticals, Inc. (United States)
ClinicalTrials.gov lists Primus Pharmaceuticals, Inc. (United States) as lead sponsor of 20 trials. It has 10 active development programs and 10 approved assets.
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Trials started per year with this organization as sponsor or collaborator, 1990 onward. The series also counts trials where the organization is a collaborator; the lead-sponsor trial count does not.
2026 is partial: 1 registered with a 2026 start date. The dashed outline is the pace from the 1 registered with a start date through September, planned starts included, not adjusted; not a forecast. No forecast is made for this organization: it averages 1.0 trial starts a year over the five years to September, under the 5 a year the method needs.
This page covers Primus Pharmaceuticals, Inc. (United States): 20 lead-sponsored trials and 1 legal-entity registration.
Disease areas (19)
Shown in this order: most trials first.
| Disease area | Trials |
|---|---|
| Osteoarthritis | 5 |
| Psoriasis | 3 |
| Bone Diseases, Metabolic | 1 |
| Cognitive Dysfunction | 1 |
| Dermatitis, Contact | 1 |
Showing 5 of 19 disease areas.
Trials by start year as sponsor or collaborator (15)
Shown in this order: most recent first. 2026 is partial: trials registered with a 2026 start date so far, not a full year.
Show the table of trials by start year as sponsor or collaborator
| Year | Trials started |
|---|---|
| 2026 (partial year) | 1 |
| 2025 | 1 |
| 2024 | 2 |
| 2023 | 1 |
| 2021 | 1 |
| 2019 | 1 |
| 2017 | 1 |
| 2016 | 3 |
| 2015 | 2 |
| 2014 | 1 |
Showing 10 of 15 years.
Recruitment duration, a model prediction: 2 trials still running at the 2026-10-09 snapshot, fewer than the 5 needed for a median. Source: ClinicalTrials.gov / AACT (CTTI), public domain.
Active development programs (10)
Shown in this order: max phase, then active trials.
| Drug | Disease area | Max phase | Trials |
|---|---|---|---|
| Vehicle Spray | Psoriasis | Phase 3 | 2 |
| DFD01 Spray | Psoriasis | Phase 3 | 2 |
| Comp01 Lotion | Psoriasis | Phase 3 | 1 |
| Vehicle Lotion | Psoriasis | Phase 3 | 1 |
| DFD06 | Psoriasis | Phase 2 | 1 |
Showing 5 of 10 active programs.
Approved assets (10)
Shown in this order: max phase first.
| Drug | Trials |
|---|---|
| Metaxalone m640 mg oral tablet | 1 |
| Metaxalone 640 mg | 1 |
| Metaxalone 640 mg Oral Tablet | 1 |
| Metaxalone 800 mg oral tablet | 1 |
| DFD-01 (betamethasone dipropionate) Spray, 0.05% | 1 |
Showing 5 of 10 approved assets.
Sponsor delivery record (1)
Enrollment hit target: the share of this sponsor's lead-sponsored trials whose actual enrollment reached the planned enrollment. On time: the share whose actual primary completion date was no later than the planned date. Each share counts only trials where we observed an estimated figure before the actual one, and n is that number of trials. Below 5 trials the count is shown as a fraction, not a percentage.
| Enrollment | Timeline |
|---|---|
| 33% hit target (n=6) | 60% on time (n=5) |
Journals published in (14)
Shown in this order: most published in first.
| Journal | Publications |
|---|---|
| Angiology | 2 |
| The Journal of clinical endocrinology and metabolism | 2 |
| American journal of preventive medicine | 1 |
| Angiologiia i sosudistaia khirurgiia = Angiology and vascular surgery | 1 |
| Annals of internal medicine | 1 |
Showing 5 of 14 journals.
US granted patents (1)
Patents are not classified by disease area in the source, so this is the organization's overall portfolio, not a split by disease.
| US patents granted | Granted in the last 5 years | Most recent grant |
|---|---|---|
| 36 | 9 | 2025-12-02 |
FDA recalls (5)
Shown in this order: most recent first.
| Product | Classification | Initiated |
|---|---|---|
| Ultra2 Resolution Variants System for Abnormal Hemoglobin Quantitation | Class II | 2020-10-09 |
| Limbrel (flavocoxid 250 mg) capsules, 60-count bottle, Rx only, Manufactured for: Primus Pharmaceuticals, Inc., Scottsdale, AZ 85253; Manufactured by: Cornerstone Research and Development, Ogden, UT 84404, NDC 68040-601-16. | Class I | 2018-01-26 |
| Limbrel (flavocoxid 500 mg) capsules, 60-count bottle, Rx only, Manufactured for: Primus Pharmaceuticals, Inc., Scottsdale, AZ 85253; Manufactured by: Cornerstone Research and Development, Ogden, UT 84404, NDC 68040-602-16. | Class I | 2018-01-26 |
| Limbrel250 (flavocoxid and citrated zinc bisglycinate) 250 mg/50 mg capsules, 60-count bottle, Rx only, Manufactured for: Primus Pharmaceuticals, Inc., Scottsdale, AZ 85253; Manufactured by: Cornerstone Research and Development, Ogden, UT 84404, NDC 68040-605-16. | Class I | 2018-01-26 |
| Limbrel500 (flavocoxid and citrated zinc bisglycinate) 500 mg/50 mg capsules, 60-count bottle, Rx only, Manufactured for: Primus Pharmaceuticals, Inc., Scottsdale, AZ 85253; Manufactured by: Cornerstone Research and Development, Ogden, UT 84404, NDC 68040-606-16. | Class I | 2018-01-26 |
Manufacturing and distribution sites (1)
| Facility | Location | Regulators | Member organization |
|---|---|---|---|
| PRIMUS PHARMACEUTICALS, INC. | Scottsdale, US | FDA |
Organization relationships (2)
Shown in this order: most evidence first.
| Related organization | Relationship | Evidence |
|---|---|---|
| Northeastern University | Co sponsors trial with | 1 |
| KGK Science Inc. | Co sponsors trial with | 1 |
Latest dated events (64)
Shown in this order: newest first.
| Date | Event | Source |
|---|---|---|
| 2026-09-15 | Trial started | Clinical trials (ClinicalTrials.gov) (ClinicalTrials.gov, U.S. National Library of Medicine; AACT database, Clinical Trials Transformation Initiative (CTTI)) |
| 2025-12-02 | Patent granted | Granted US patents (PatentsView / USPTO) |
| 2025-05-02 | Trial started | Clinical trials (ClinicalTrials.gov) (ClinicalTrials.gov, U.S. National Library of Medicine; AACT database, Clinical Trials Transformation Initiative (CTTI)) |
| 2024-05-16 | Trial started | Clinical trials (ClinicalTrials.gov) (ClinicalTrials.gov, U.S. National Library of Medicine; AACT database, Clinical Trials Transformation Initiative (CTTI)) |
| 2024-04-29 | Trial started | Clinical trials (ClinicalTrials.gov) (ClinicalTrials.gov, U.S. National Library of Medicine; AACT database, Clinical Trials Transformation Initiative (CTTI)) |
Showing 5 of 64 events.
CLIA clinical laboratory certificates (2)
Shown in this order: active first, then certificate type.
| Lab | Certificate | Status |
|---|---|---|
| PRIMUS INCORPORATED | Certificate of waiver | Active |
| PRIMUS | Certificate of accreditation | Terminated |
Biomarker capability evidence (18)
Shown in this order: tier desc, then gene symbol.
| Gene | Role | Evidence |
|---|---|---|
| PTGS2 | Trial sponsor | Named in trial inclusion criteria |
| PTGS2 | Trial sponsor | Named in trial inclusion criteria |
| PTGS2 | Trial sponsor | Named in trial inclusion criteria |
| ATP12A | Trial sponsor | Named in trial exclusion criteria |
| ATP4A | Trial sponsor | Named in trial exclusion criteria |
Showing 5 of 18 evidence rows.
Not on this page
Checked, with nothing recorded for this organization: companies grouped under this page, related companies not grouped here, sec-reported annual financials, financing and grant events, fda warning letters, fda untitled letters, fda inspection record, fda import refusals, climate targets, as filed, workforce and board diversity, as filed, and biomarkers this organization publishes on.