U.S. Bioscience

Closed portfolio with an early-phase archive tilt

According to ClinicalTrials.gov-derived indexes, U.S. Bioscience sits in the upper quartile of US sponsors by registered trial count (#2,411 of 15,742 sponsors by registered trial count).

5 total trials none currently recruiting 5 completed early-phase tilt upper quartile by trial count

U.S. Bioscience: 5 sponsored US clinical trials, none currently recruiting.

U.S. Bioscience sponsors 5 registered US clinical trials on ClinicalTrials.gov, none currently recruiting, and 5 completed. 0 of these trials are in Phase 3-4 (later-stage) and 1 in Phase 1-2 (earlier-stage). The most-studied condition in this pipeline is Pneumonia, Pneumocystis Carinii, with 3 trials.

Upper-quartile sponsor footprint

U.S. Bioscience sits in the upper quartile of the sponsor corpus (#2,411 of 15,742 sponsors by registered trial count) - denser than most sponsors, still short of the top-decile hubs.

Indexed trials (enrollment closed)

5 total, page 1 of 1

COMPLETED NA

A Compassionate Treatment Protocol for the Use of Trimetrexate Glucuronate With Leucovorin Protection for Patients With Pneumocystis Carinii Pneumonia.

NCT00002102
COMPLETED NA

A Study of Trimetrexate Plus Leucovorin in Children With Pneumocystis Carinii Pneumonia

NCT00002317
COMPLETED NA

A Compassionate Treatment Protocol for the Use of Trimetrexate Glucuronate (Neutrexin) With Leucovorin Protection for European Adult Patients (>= 13 Years Old) With Pneumocystis Carinii Pneumonia

NCT00002103
COMPLETED NA

A Study of Neutrexin Plus Leucovorin in the Treatment of Pneumocystis Carinii Pneumonia (PCP)

NCT00002434
COMPLETED Phase 1

Randomized Phase I Study of Trimetrexate Glucuronate (TMTX) With Leucovorin (LCV) Protection Plus Dapsone Versus Trimethoprim / Sulfamethoxazole (TMP/SMX) for Treatment of Moderately Severe Episodes of Pneumocystis Carinii Pneumonia

NCT00002120

Phase Distribution

PhaseTrial count
Phase 1 1

Therapeutic Areas

Pneumonia, Pneumocystis Carinii 3
HIV Infections 3

How the U.S. Bioscience early-phase archive is shaped

5 indexed studies, none listed as recruiting (0% open); 5 completed (100%).

Phase mix: 0 late (III/IV) vs 1 early (I/II) (early-phase heavy).

Top condition: Pneumonia, Pneumocystis Carinii (3 trials), 1 other listed.

How to read a closed sponsor archive

When recruiting_count is zero, the indexed set is completed or otherwise not open. Phase tilt still describes where archived studies sat on the investigational pathway. Re-check ClinicalTrials.gov before acting.

U.S. Bioscience: archived-pipeline peers nationwide

Peers matched on 5 indexed studies with no current recruiting: volume and archive shape, not condition overlap.

U.S. Bioscience sits at or above the median trial volume and at or above the median recruiting share among these 9 nationwide peers -- the two do not always move together. Source: ClinicalTrials.gov (2026-08-08 snapshot). 2×2 strategic matrix plotting 9 entities by Total trials (X) and Recruiting share (Y), with a crosshair dividing the plot into four quadrants. Higher volume & more openFocused & more openHigher volume, mostly closedSmaller & mostly closed 051015 0%5%10%15%20%25% Total trials Recruiting share U.S. Bioscience4YouandMeAbbott Rapid DxAccess Business GroupAcera Surgical10xBio22nd Century Group23andMe3-C Institute for Social Development
U.S. Bioscience sits at or above the median trial volume and at or above the median recruiting share among these 9 nationwide peers -- the two do not always move together. Source: ClinicalTrials.gov (2026-08-08 snapshot).

U.S. Bioscience sits at or above the median trial volume and at or above the median recruiting share among these 9 nationwide peers -- the two do not always move together.

Sponsors near 5 archived trials

Sponsors with similar archive density (± trial count)

Related

Read our methodology - how this data is sourced, computed, and verified.

What to do with this U.S. Bioscience page

5 registered trials is a research-attention snapshot, not an endorsement of U.S. Bioscience or any single study.

  • None of U.S. Bioscience's trials are currently recruiting in this registry; that can change as new trials post, or check the broader research index. Browse research indexes
  • Pneumonia, Pneumocystis Carinii is the condition U.S. Bioscience studies most, compare against other sponsors active in the same condition before evaluating a specific study. See Pneumonia, Pneumocystis Carinii trials
  • Bring the specific trial ID (NCT number) to your own doctor before enrolling, this page is a directory, not medical guidance. Read the trial-finding guide

Trial and recruiting counts reflect ClinicalTrials.gov registry status as of the data vintage above; individual trial eligibility and enrollment status can change.

U.S. Bioscience pipeline card: 5 registered trials from official public datasets.Report a data error.