Syndax Pharmaceuticals

Open enrollment with an early-phase pipeline tilt

According to ClinicalTrials.gov-derived indexes, Syndax Pharmaceuticals sits in the top decile of US sponsors by registered trial count (#626 of 15,742 sponsors by registered trial count).

25 total trials 2 currently recruiting 18 completed early-phase tilt top decile by trial count

Syndax Pharmaceuticals: 25 sponsored US clinical trials, 2 recruiting.

Syndax Pharmaceuticals sponsors 25 registered US clinical trials on ClinicalTrials.gov, 2 of them currently recruiting, and 18 completed. 0 of these trials are in Phase 3-4 (later-stage) and 25 in Phase 1-2 (earlier-stage). The most-studied condition in this pipeline is Carcinoma, Non-Small Cell Lung, with 3 trials.

Top-decile sponsor footprint

Syndax Pharmaceuticals ranks in the top decile of sponsors by registered trial count (#626 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 44/100

18 of 22 decided trials (Completed vs. Terminated on ClinicalTrials.gov) reached their planned completion (81.8%), 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.

Open and recent trials

25 total, page 1 of 1

RECRUITING Phase 1

A Study of SNDX-5613 in Combination With Intensive Chemotherapy in Participants With Acute Myeloid Leukemias

NCT06226571

RECRUITING Phase 1

A Study of Revumenib in R/R Leukemias Including Those With an MLL/KMT2A Gene Rearrangement or NPM1 Mutation

NCT04065399

ACTIVE NOT RECRUITING Phase 2

A Study of Axatilimab at 3 Different Doses in Participants With Chronic Graft Versus Host Disease (cGVHD)

NCT04710576

COMPLETED Phase 1

Evaluation of Revumenib in Participants With Colorectal Cancer and Other Solid Tumors

NCT05731947

COMPLETED Phase 1

Study of Radiolabeled Revumenib in Adults With Acute Leukemia

NCT05406817

COMPLETED Phase 1

A Study of Revumenib in Combination With Chemotherapy in Participants With R/R Acute Leukemia

NCT05326516

TERMINATED Phase 2

A Phase 2 Study to Evaluate Axatilimab for Hospitalized Participants With Respiratory Involvement Secondary to COVID-19

NCT04415073

COMPLETED Phase 1

A Phase 1/2 Study to Evaluate Axatilimab in Participants With Active cGVHD

NCT03604692

COMPLETED Phase 1

A Phase 1 Study to Investigate Axatilimab Alone or in Combination With Durvalumab in Patients With Solid Tumors

NCT03238027

COMPLETED Phase 1

A Study to Evaluate the Pharmacokinetics of Entinostat in Adult Subjects With Normal and Impaired Renal Function

NCT03192111

COMPLETED Phase 1

A Study to Examine the Effects of Entinostat on Midazolam in Healthy Adult Subjects

NCT03187015

COMPLETED Phase 1

Study of Avelumab With or Without Entinostat in Participants With Advanced Epithelial Ovarian Cancer

NCT02915523

COMPLETED Phase 1

A Study to Examine the Effect of Omeprazole, Famotidine, and an Acidic Beverage on the Pharmacokinetics of Entinostat in Healthy Adult Subjects

NCT02922933

COMPLETED Phase 1

Study to Determine the Effect of the Timing of a Meal on the Pharmacokinetics of Entinostat

NCT02922946

COMPLETED Phase 1

Continuation Study of Entinostat in Combination With Pembrolizumab in Patients With Advanced Solid Tumors

NCT02909452

COMPLETED Phase 1

Cardiac Safety Study of Entinostat in Men and Women With Advanced Solid Tumors

NCT02897778

COMPLETED Phase 1

Drug-Drug Interaction Study of Entinostat and Exemestane in Postmenopausal Women With ER+ Breast Cancer

NCT02820961

COMPLETED Phase 1

Randomized Phase 2 Study of Atezolizumab and Entinostat in Patients With aTN Breast Cancer With Phase 1b Lead In

NCT02708680

COMPLETED Phase 1

Ph1b/2 Dose-Escalation Study of Entinostat With Pembrolizumab in Non-small Cell Lung Cancer (NSCLC) With Expansion Cohorts in NSCLC, Melanoma, and Colorectal Cancer (CRC)

NCT02437136

COMPLETED Phase 1

Study to Assess Food Effect on Pharmacokinetics of Entinostat in Subjects With Breast Cancer or Non-Small Cell Lung Cancer

NCT01594398

TERMINATED Phase 2

A Phase 2 Multi-Center Study of Entinostat (SNDX-275) in Patient With Relapsed or Refractory Hodgkin's Lymphoma

NCT00866333

TERMINATED Phase 2

A Phase 2 Exploratory Study of Erlotinib and SNDX-275 in Participants With Non-small Cell Lung Carcinoma Who Are Progressing on Erlotinib

NCT00750698

COMPLETED Phase 2

Study to Evaluate Exemestane With and Without Entinostat (SNDX-275) in Treatment of Postmenopausal Women With Advanced Breast Cancer

NCT00676663

TERMINATED Phase 1

A Phase I, Multicenter, Open Label Study on the Effects of SNDX-275 on Expression of Biomarkers in Subjects With Newly Diagnosed Breast Cancer

NCT00754312

COMPLETED Phase 1

Study to Evaluate Erlotinib With or Without SNDX-275 (Entinostat) in the Treatment of Patients With Advanced NSCLC

NCT00602030

What is open in the Syndax Pharmaceuticals pipeline

2 recruiting of 25 indexed (8% open); 18 completed (72%).

Phase mix: 0 late (III/IV) vs 25 early (I/II) (early-phase heavy).

Top condition: Carcinoma, Non-Small Cell Lung (3 trials), 9 others listed.

How open-pipeline share is computed

Recruiting share is recruiting_count divided by trial_count for this sponsor in the public registry export. Status can change between pulls; treat the figure as a research-attention snapshot, not product availability.

Syndax Pharmaceuticals: open-pipeline peers nationwide

Peers matched on 25 registered trials and 8% open enrollment, not the therapeutic-area sidebar.

Syndax 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 05001,0001,500 0%5%10%15% Total trials Recruiting share Syndax PharmaceuticalsArcus BiosciencesArcutis BiotherapeuticsArdelyxDrexel University College of MedicineMedtronic EndovascularNovartis PharmaceuticalsPenumbraSK Life Science
Syndax 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).

Syndax 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 25 trials (± recruiting share)

Sponsors near 8% open enrollment (± trial volume)

What to do with this Syndax Pharmaceuticals page

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

  • 2 of Syndax Pharmaceuticals's trials are currently recruiting, check each one's own eligibility criteria before contacting a site. Browse recruiting trials
  • Carcinoma, Non-Small Cell Lung is the condition Syndax Pharmaceuticals studies most, compare against other sponsors active in the same condition before evaluating a specific study. See Carcinoma, Non-Small Cell Lung 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.

Syndax Pharmaceuticals pipeline card: 25 registered trials from official public datasets.Report a data error.