Astex Pharmaceuticals

Closed portfolio with an early-phase archive tilt

According to ClinicalTrials.gov-derived indexes, Astex Pharmaceuticals sits in the top decile of US sponsors by registered trial count (#448 of 15,742 sponsors by registered trial count).

38 total trials none currently recruiting 29 completed early-phase tilt top decile by trial count

Astex Pharmaceuticals: 38 sponsored US clinical trials, none currently recruiting.

Astex Pharmaceuticals sponsors 38 registered US clinical trials on ClinicalTrials.gov, none currently recruiting, and 29 completed. 5 of these trials are in Phase 3-4 (later-stage) and 32 in Phase 1-2 (earlier-stage). The most-studied condition in this pipeline is Chronic Myelogenous Leukemia, with 1 trials.

Top-decile sponsor footprint

Astex Pharmaceuticals ranks in the top decile of sponsors by registered trial count (#448 of 15,742 sponsors by registered trial count). Volume at this scale usually reflects a long institutional pipeline, read phase tilt and therapeutic areas below before treating it as current-year activity.

Trial completion reliability score

F 30/100

29 of 38 decided trials (Completed vs. Terminated on ClinicalTrials.gov) reached their planned completion (76.3%), vs. national p10 68.4% / p90 100% among 1,234 sponsors with at least 10 decided trials. Still-open trials (Recruiting, Active-not-recruiting, Not-yet-recruiting) are excluded since they have not reached an outcome yet.

Indexed trials (enrollment closed)

38 total, page 1 of 1

TERMINATED Phase 2

A Study of Oral Decitabine/Cedazuridine in Combination With Magrolimab in Participants With Intermediate- to Very High-Risk Myelodysplastic Syndromes (MDS)

NCT05835011

TERMINATED Phase 1

A Study of TAS1553 in Subjects With Relapsed or Refractory Acute Myeloid Leukemia (AML) and Other Myeloid Neoplasms

NCT04637009

COMPLETED Phase 1

A Phase 1 Study to Evaluate the Effect of Food on Pharmacokinetics of ASTX029

NCT04466514

COMPLETED Phase 1

Effect of Food on the Pharmacokinetics of ASTX660 in Healthy Volunteers

NCT04479800

TERMINATED Phase 1

A Study of ASTX660 as a Single Agent and in Combination With ASTX727 in Subjects With Relapsed/Refractory Acute Myeloid Leukemia (AML)

NCT04155580

COMPLETED Phase 1

A Study to Investigate the Effect of CYP3A4 Inhibition on the Single Dose Pharmacokinetics of ASTX660 and the Effect of a Single Dose of ASTX660 on the Pharmacokinetics of the CYP3A4 Substrate Midazolam

NCT04411030

COMPLETED Phase 1

Effect of Food on Blood Levels of ASTX727

NCT03813186

TERMINATED Phase 2

Guadecitabine Extension Study

NCT03603964

COMPLETED Phase 3

Study of ASTX727 vs IV Decitabine in Participants With MDS, CMML, and AML

NCT03306264

COMPLETED Phase 3

Phase 3 Randomized, Open-Label Study of Guadecitabine vs Treatment Choice in Previously Treated Acute Myeloid Leukemia

NCT02920008

COMPLETED Phase 3

Guadecitabine (SGI-110) vs Treatment Choice in Adults With MDS or CMML Previously Treated With HMAs

NCT02907359

COMPLETED Phase 3

SGI-110 in Adults With Untreated Acute Myeloid Leukemia (AML), Not Considered Candidates for Intensive Remission Induction

NCT02348489

COMPLETED Phase 1

Pharmacokinetic Guided Dose Escalation and Dose Confirmation With Oral Decitabine and Oral Cytidine Deaminase Inhibitor (CDAi) in Patients With Myelodysplastic Syndromes (MDS)

NCT02103478

COMPLETED Phase 2

SGI-110 in the Treatment of Advanced Hepatocellular Carcinoma (HCC)

NCT01752933

COMPLETED Phase 1

A Study of AT13387 in Patients With Non-Small Cell Lung Cancer (NSCLC) Alone and in Combination With Crizotinib

NCT01712217

COMPLETED Phase 1

A Study of HSP90 Inhibitor AT13387 Alone or in Combination With Abiraterone Acetate

NCT01685268

COMPLETED Phase 2

SGI-110 in Combination With Carboplatin in Ovarian Cancer

NCT01696032

COMPLETED Phase 2

A Phase 2, Open-Label Study of Amuvatinib in Combination With Platinum-Etoposide Chemotherapy in Small Cell Lung Cancer

NCT01357395

COMPLETED Phase 2

A Study to Investigate the Safety and Efficacy of AT13387, Alone or in Combination With Imatinib, in Patients With GIST

NCT01294202

COMPLETED Phase 1

SGI-110 in Participants With Myelodysplastic Syndromes (MDS) or Acute Myelogenous Leukemia (AML)

NCT01261312

COMPLETED Phase 1

Effect of AT7519M Alone and AT7519M Plus Bortezomib in Patients With Previously Treated Multiple Myeloma

NCT01183949

TERMINATED Phase 1

Safety of SGI-1776, A PIM Kinase Inhibitor in Refractory Prostate Cancer and Relapsed/Refractory Non Hodgkin's Lymphoma

NCT00848601

COMPLETED Phase 1

Study to Assess the Safety of Escalating Doses of AT13387 in Patients With Metastatic Solid Tumors

NCT00878423

COMPLETED Phase 1

Safety of MP470 in Combination With Standard-of-Care Chemotherapy Regimens to Treat Solid Tumors

NCT00881166

COMPLETED Phase 1

Safety Study to Determine the Maximum Tolerated Dose, Pharmacokinetics and Pharmacodynamics of Oral MP470, a Multitargeted Tyrosine Kinase Inhibitor, in Patients With Solid Malignancies

NCT00894894

TERMINATED NA

MP470 in Treating Patients With Unresectable or Metastatic Solid Tumor or Lymphoma

NCT00504205

TERMINATED Phase 1

Study to Assess the Safety of Escalating Doses of AT9283, in Patients With Leukemias

NCT00522990

TERMINATED Phase 2

Orathecin + Gemcitabine Versus Placebo + Gemcitabine in Chemonaive Non-Resectable Pancreatic Cancer

NCT00113256

COMPLETED Phase 2

Phase II Trial of Decitabine in Patients With Chronic Myelogenous Leukemia Accelerated Phase Who Are Refractory to Imatinib Mesylate (Gleevec)

NCT00041990

COMPLETED Phase 2

Phase II Trial of Decitabine in Patients With Chronic Myelogenous Leukemia Blast Phase Who Are Refractory to Imatinib Mesylate (Gleevec)

NCT00042003

COMPLETED Phase 2

Phase II Trial of Decitabine in Patients With Chronic Myelogenous Leukemia Chronic Phase Who Are Refractory to Imatinib Mesylate (Gleevec)

NCT00042016

TERMINATED Phase 1

Dose-finding Study Using Pentostatin for Injection in the Treatment of Steroid-refractory aGvHD

NCT00032773

COMPLETED Phase 1

Study of Rubitecan in Cancer Patients With Renal or Hepatic Dysfunction

NCT00113113

COMPLETED Phase 3

Decitabine Versus Supportive Care in Adults With Advanced-stage MDS

NCT00043381

COMPLETED Phase 2

Nitrocamptothecin in Treating Patients With Locally Recurrent or Metastatic Breast Cancer

NCT00005873

COMPLETED Phase 2

Nitrocamptothecin in Treating Patients With Soft Tissue Sarcomas

NCT00005874

COMPLETED Phase 2

Nitrocamptothecin in Treating Patients With Recurrent Non-small Cell Lung Cancer

NCT00005872

COMPLETED Phase 2

Nitrocamptothecin in Treating Patients With Metastatic Melanoma

NCT00005875

Phase Distribution

PhaseTrial count
Phase 1 18
Phase 2 14
Phase 3 5

How the Astex Pharmaceuticals early-phase archive is shaped

38 indexed studies, none listed as recruiting (0% open); 29 completed (76%).

Phase mix: 5 late (III/IV) vs 32 early (I/II) (early-phase heavy).

Top condition: Chronic Myelogenous Leukemia (1 trial), 4 others 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.

Astex Pharmaceuticals: archived-pipeline peers nationwide

Peers matched on 38 indexed studies with no current recruiting: volume and archive shape, not condition overlap.

Astex Pharmaceuticals 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 010203040 0%5%10%15% Total trials Recruiting share Astex PharmaceuticalsAcerta PharmaCorewell Health WestDePuy OrthopaedicsEthicon10xBio22nd Century Group23andMe3-C Institute for Social Development
Astex Pharmaceuticals 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).

Astex Pharmaceuticals 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 38 archived trials

Sponsors with similar archive density (± trial count)

What to do with this Astex Pharmaceuticals page

38 registered trials is a research-attention snapshot, not an endorsement of Astex Pharmaceuticals or any single study.

  • None of Astex Pharmaceuticals's trials are currently recruiting in this registry; that can change as new trials post, or check the broader research index. Browse research indexes
  • Chronic Myelogenous Leukemia is the condition Astex Pharmaceuticals studies most, compare against other sponsors active in the same condition before evaluating a specific study. See Chronic Myelogenous Leukemia 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.

Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. Astex Pharmaceuticals pipeline card: 38 registered trials from official public datasets. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.