Organization (Industry)
Tesaro (United States)
ClinicalTrials.gov lists Tesaro (United States) as lead sponsor of 33 trials. It has 68 active development programs and 17 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: 0 registered with a 2026 start date. The dashed outline is the pace from the 0 registered with a start date through September, planned starts included, not adjusted; not a forecast. No forecast is made for this organization: it averages 0.2 trial starts a year over the five years to September, under the 5 a year the method needs.
Logo Tesaro, via Wikimedia Commons, CC BY-SA 4.0. Shown to identify the organization; it may be a registered trademark.
This page covers Tesaro (United States): 33 lead-sponsored trials and 1 legal-entity registration.
Disease areas (26)
Shown in this order: most trials first.
| Disease area | Trials |
|---|---|
| Ovarian Neoplasms | 17 |
| Breast Neoplasms | 7 |
| Lung Neoplasms | 7 |
| Vomiting | 6 |
| Carcinoma, Non-Small-Cell Lung | 4 |
Showing 5 of 26 disease areas.
Trials by start year as sponsor or collaborator (13)
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 |
|---|---|
| 2022 | 1 |
| 2021 | 2 |
| 2020 | 4 |
| 2019 | 14 |
| 2018 | 9 |
| 2017 | 7 |
| 2016 | 5 |
| 2015 | 4 |
| 2014 | 2 |
| 2013 | 1 |
Showing 10 of 13 years.
Recruitment duration, a model prediction: 1 trial 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 (68)
Shown in this order: max phase, then active trials.
| Drug | Disease area | Max phase | Trials |
|---|---|---|---|
| Niraparib | Ovarian Neoplasms | Phase 3 | 12 |
| Dostarlimab | Ovarian Neoplasms | Phase 3 | 5 |
| Niraparib | Recurrence | Phase 3 | 1 |
| CARBOPLATIN | Recurrence | Phase 3 | 1 |
| Dostarlimab | Recurrence | Phase 3 | 1 |
Showing 5 of 68 active programs.
Approved assets (17)
Shown in this order: max phase first.
| Drug | Trials |
|---|---|
| Niraparib | 16 |
| Dostarlimab | 10 |
| Rolapitant | 5 |
| CARBOPLATIN | 5 |
| (nab)-paclitaxel | 4 |
Showing 5 of 17 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 |
|---|---|
| 56% hit target (n=16) | 36% on time (n=14) |
Journals published in (39)
Shown in this order: most published in first.
| Journal | Publications |
|---|---|
| Gynecologic oncology | 8 |
| The Lancet. Oncology | 7 |
| International journal of gynecological cancer : official journal of the International Gynecological Cancer Society | 5 |
| The New England journal of medicine | 5 |
| Annals of oncology : official journal of the European Society for Medical Oncology | 4 |
Showing 5 of 39 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 |
|---|---|---|
| 18 | 16 | 2025-09-16 |
Organization relationships (15)
Shown in this order: most evidence first.
| Related organization | Relationship | Evidence |
|---|---|---|
| European Network of Gynaecological Oncological Trial Groups (ENGOT) | Co sponsors trial with | 3 |
| Facing Our Risk of Cancer Empowered | Co sponsors trial with | 3 |
| Myriad Genetics | Co sponsors trial with | 3 |
| Gynecologic Oncology Group | Co sponsors trial with | 2 |
| UCLA Health | Co sponsors trial with | 2 |
Showing 5 of 15 relationships.
Latest dated events (75)
Shown in this order: newest first.
| Date | Event | Source |
|---|---|---|
| 2025-09-16 | Patent granted | Granted US patents (PatentsView / USPTO) |
| 2025-08-12 | Patent granted | Granted US patents (PatentsView / USPTO) |
| 2025-05-13 | Patent granted | Granted US patents (PatentsView / USPTO) |
| 2024-12-03 | Patent granted | Granted US patents (PatentsView / USPTO) |
| 2024-06-11 | Patent granted | Granted US patents (PatentsView / USPTO) |
Showing 5 of 75 events.
Biomarker capability evidence (492)
Shown in this order: tier desc, then gene symbol.
| Gene | Role | Evidence |
|---|---|---|
| ABRAXAS1 | Trial collaborator | Named in trial inclusion criteria |
| ALB | Trial collaborator | Named in trial inclusion criteria |
| ALB | Trial sponsor | Named in trial inclusion criteria |
| ALB | Trial collaborator | Named in trial inclusion criteria |
| ALB | Trial collaborator | Named in trial inclusion criteria |
Showing 5 of 492 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 recalls, fda import refusals, manufacturing and distribution sites, climate targets, as filed, workforce and board diversity, as filed, clia clinical laboratory certificates, and biomarkers this organization publishes on.