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.

Astex Pharmaceuticals pipeline card: 38 registered trials from official public datasets.Report a data error.