Organization (Industry)
IONIS PHARMACEUTICALS INC
ClinicalTrials.gov lists IONIS PHARMACEUTICALS INC as lead sponsor of 133 trials, counting the companies grouped under it. IONIS PHARMACEUTICALS INC itself has 58 active development programs and 14 approved assets.
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Trials started per year with this organization as sponsor or collaborator, 1990 onward. Companies grouped under this one are not included. The series also counts trials where the organization is a collaborator; the lead-sponsor trial count does not.
2026 is partial: 5 registered with a 2026 start date. The hollow diamonds on the dashed line are a forecast of the full-year count, planned starts included: about 6 in 2026 and about 4 in 2027, the average of the 24 months through September, counted as registered and carried forward. The columns, the lighter one included, count trials registered so far with a start date in the year, planned starts included; the forecast looks ahead to the count for the whole year, so it is not the same measure. This method has not been backtested on organizations. In backtests on conditions with as many trial starts a year as this organization (5 to 20), forecasts made part-way through the year were typically off by about 28 percent and ran about 20 percent low against the count later registered; forecasts made before the year began were off by about 39 percent and ran about 37 percent low against the count later registered. These figures rest on a few years of history (target years from 2018 to 2025, varying by figure), place each condition as it is mapped today rather than as it was then, and score against a count for the newest year that was still being revised. Only condition series were scored.
Logo Ionis Pharmaceuticals, via Wikimedia Commons, Public domain. Shown to identify the organization; it may be a registered trademark.
This page covers IONIS PHARMACEUTICALS INC and 1 company grouped under it: 133 lead-sponsored trials (118 its own, 15 in the grouped companies) and 3 legal-entity registrations (3 its own, 0 in the grouped companies).
Companies grouped under this page (1)
| Company | Lead trials | Legal entities |
|---|---|---|
| Akcea Therapeutics | 15 | 0 |
Disease areas (124)
Shown in this order: most trials first.
| Disease area | Trials |
|---|---|
| Dyslipidemias | 30 |
| Hyperlipidemias | 29 |
| Diabetes Mellitus | 16 |
| Diabetes Mellitus, Type 2 | 16 |
| Hypertriglyceridemia | 12 |
Showing 5 of 124 disease areas.
Trials by start year as sponsor or collaborator (26)
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) | 5 |
| 2025 | 1 |
| 2024 | 4 |
| 2023 | 2 |
| 2022 | 14 |
| 2021 | 17 |
| 2020 | 9 |
| 2019 | 8 |
| 2018 | 10 |
| 2017 | 12 |
Showing 10 of 26 years.
Prediction, not a registry value: median of 36 months from start to primary completion across 12 trials still running at the 2026-10-09 snapshot; registered median of 19 months across 89 trials with a primary completion typed Actual. Source: ClinicalTrials.gov / AACT (CTTI), public domain.
Active development programs (58)
Shown in this order: max phase, then active trials.
| Drug | Disease area | Max phase | Trials |
|---|---|---|---|
| Olezarsen | Hyperlipoproteinemia Type I | Phase 3 | 5 |
| Donidalorsen | Angioedemas, Hereditary | Phase 3 | 6 |
| Donidalorsen | Angioedema | Phase 3 | 6 |
| Donidalorsen | Primary Immunodeficiency Diseases | Phase 3 | 6 |
| obudanersen | Angelman Syndrome | Phase 3 | 2 |
Showing 5 of 58 active programs.
Approved assets (14)
Shown in this order: max phase first.
| Drug | Trials |
|---|---|
| Olezarsen | 11 |
| Eplontersen | 5 |
| Inotersen | 4 |
| Volanesorsen | 3 |
| CARBOPLATIN | 2 |
Showing 5 of 14 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 |
|---|---|
| 59% hit target (n=54) | 40% on time (n=48) |
Journals published in (55)
Shown in this order: most published in first.
| Journal | Publications |
|---|---|
| The New England journal of medicine | 15 |
| European heart journal | 6 |
| Journal of clinical lipidology | 4 |
| Muscle & nerve | 4 |
| Diabetes care | 3 |
Showing 5 of 55 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 |
|---|---|---|
| 1,335 | 101 | 2025-12-30 |
SEC-reported annual financials (11)
Shown in this order: newest fiscal year first; SEC EDGAR XBRL companyfacts, USD as reported.
| Fiscal year | Revenue (USD) | Net income (USD) | R&D (USD) |
|---|---|---|---|
| 2025 | 943,711,000 | -381,387,000 | 915,619,000 |
| 2024 | 705,138,000 | -453,897,000 | 901,530,000 |
| 2023 | 787,647,000 | -366,286,000 | 899,625,000 |
| 2022 | 587,367,000 | -269,722,000 | not reported |
| 2021 | 810,456,000 | -28,597,000 | 638,200,000 |
| 2020 | 729,264,000 | -444,263,000 | 531,000,000 |
| 2019 | 1,122,599,000 | 278,143,000 | 461,500,000 |
| 2018 | 599,674,000 | 273,741,000 | 411,900,000 |
| 2017 | 514,179,000 | 346,000 | 372,500,000 |
| 2016 | 372,776,000 | -60,400,000 | 340,400,000 |
Showing 10 of 11 fiscal years.
Financing and grant events (29)
Shown in this order: most recent first.
| Date | Round type | Amount (USD) | Source |
|---|---|---|---|
| 2026-05-28 | Royalty / licensing | not disclosed | Sec extracted |
| 2026-01-07 | Royalty / licensing | not disclosed | Sec extracted |
| 2025-11-17 | Debt financing | 751,200,000 | Sec extracted |
| 2025-03-11 | Royalty / licensing | not disclosed | Sec extracted |
| 2024-09-11 | Public offering | 500,300,000 | Sec extracted |
Showing 5 of 29 events.
FDA inspection record (1)
| Latest classification | Inspections |
|---|---|
| NAI | 8 |
Manufacturing and distribution sites (1)
| Facility | Location | Regulators | Member organization |
|---|---|---|---|
| Ionis Pharmaceuticals Inc. | Carlsbad, US | FDA, Health Canada |
Climate targets, as filed (1)
| Reporting year | Net-zero target |
|---|---|
| 2025 | not disclosed |
Workforce and board diversity, as filed (1)
| Reporting year | Workforce % women | Board % women |
|---|---|---|
| 2025 | not disclosed | not disclosed |
Organization relationships (33)
Shown in this order: most evidence first.
| Related organization | Relationship | Evidence |
|---|---|---|
| Akcea Therapeutics | Co sponsors trial with | 12 |
| Kastle Therapeutics, LLC | Co sponsors trial with | 12 |
| Astrazeneca Plc | Co sponsors trial with | 7 |
| Government of the United States of America | Co sponsors trial with | 4 |
| Biogen Inc. | Co sponsors trial with | 3 |
Showing 5 of 33 relationships.
Latest dated events (1,528)
Shown in this order: newest first.
| Date | Event | Source |
|---|---|---|
| 2026-09-22 | Priority review | Regulatory decision dates extracted from SEC filings |
| 2026-09 | Trial started | Clinical trials (ClinicalTrials.gov) (ClinicalTrials.gov, U.S. National Library of Medicine; AACT database, Clinical Trials Transformation Initiative (CTTI)) |
| 2026-07-31 | Trial started | Clinical trials (ClinicalTrials.gov) (ClinicalTrials.gov, U.S. National Library of Medicine; AACT database, Clinical Trials Transformation Initiative (CTTI)) |
| 2026 Q3 | Priority review | Regulatory decision dates extracted from SEC filings |
| 2026 Q3 | Priority review | Regulatory decision dates extracted from SEC filings |
Showing 5 of 1,528 events.
Biomarker capability evidence (324)
Shown in this order: tier desc, then gene symbol.
| Gene | Role | Evidence |
|---|---|---|
| ACE | Trial sponsor | Named in trial inclusion criteria |
| ACE | Trial sponsor | Named in trial inclusion criteria |
| ACE | Trial sponsor | Named in trial inclusion criteria |
| AGT | Trial sponsor | Named in trial inclusion criteria |
| AGT | Trial sponsor | Named in trial inclusion criteria |
Showing 5 of 324 evidence rows.
Not on this page
Checked, with nothing recorded for this organization: related companies not grouped here, fda warning letters, fda untitled letters, fda recalls, fda import refusals, clia clinical laboratory certificates, and biomarkers this organization publishes on.