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ClinicalTrials.gov 4 recruiting now early-phase tilt small index

Secondary Myelofibrosis: early-phase trial registry

4 of 13 indexed Secondary Myelofibrosis trials are currently recruiting, with more weight in Phase 1-2.

Corpus placement: #1,315 of 28,707 conditions by registered trial count.

13 US clinical trials · 4 currently recruiting · #1,315 of 28,707 conditions by registered trial count

Secondary Myelofibrosis: 13 US clinical trials tracked, 4 recruiting.

Secondary Myelofibrosis is the subject of 13 registered US clinical trials on ClinicalTrials.gov, 4 of them currently open to new participants. 0 are in Phase 3-4 (later-stage) and 13 in Phase 1-2 (earlier-stage). The most active sponsor is Fred Hutchinson Cancer Center, running 4 of these trials.

Enrollment posture brief

Registry condition secondary-myelofibrosis

OPEN 4 | RECR 31% | LATE 0 | EARLY 13 | RANK #1315 | SPON 4

Nearest open-share peer: Acute Decompensated Heart Failure (31% recruiting · 13 trials)

ACL Injury61.5%Acute Biphenotypic Leukemia46.2%Secondary Myelofibrosis (thi…31%Accidental Falls30.8%Actinic Keratoses23.1%
Open-enrollment share among volume-matched conditions near Secondary Myelofibrosis

Secondary Myelofibrosis lists 4 open slots (31% of 13 indexed trials). Peers are matched on registered volume, not therapeutic-area browse lists. How peer matching works →

Key findings

What ClinicalTrials.gov does not surface for Secondary Myelofibrosis on its own pages , computed from the registry mirror as of 2026-08-08. Each line carries its own denominator so it can be quoted as it stands.

  1. Secondary Myelofibrosis is recruiting below its size-band peers.

    4 of 13 indexed trials (30.8%) are open to enrollment, against a 46.5% average across 27,806 conditions with fewer than 20 trials. The peer set uses the same ClinicalTrials.gov-derived counts as this page.

  2. One sponsor concentrates Secondary Myelofibrosis research.

    Fred Hutchinson Cancer Center accounts for 4 of 13 trials (30.8%). 6 distinct sponsors appear on at least one study for this condition label.

  3. Most Secondary Myelofibrosis trials plan to enrol fewer than 100 people.

    Median target enrolment is 32 among the 13 trials that report a genuine target (sentinel values excluded). 13 of those (100%) plan for fewer than 100 participants.

  4. Secondary Myelofibrosis research is mostly interventional.

    13 interventional and 0 observational studies make up this index (100% interventional). Study type is sponsor-reported on ClinicalTrials.gov.

Phase 12Phase 211

Open and recent trials

13 total, page 1 of 1

RECRUITING Phase 2 62 participants

A Randomized Study of ASTX727 With or Without Iadademstat in Advanced Myeloproliferative Neoplasms (MPNs)

National Cancer Institute (NCI)

NCT06661915

RECRUITING Phase 2 50 participants

Ruxolitinib Before, During and After Hematopoietic Cell Transplant in Older Patients With Myelofibrosis and Myelodysplastic Syndrome/Myeloproliferative Neoplasm Overlap Syndromes

Fred Hutchinson Cancer Center

NCT07228624

RECRUITING Phase 2 25 participants

Decitabine With Ruxolitinib, Fedratinib or Pacritinib for the Treatment of Accelerated/Blast Phase Myeloproliferative Neoplasms

University of Washington

NCT04282187

RECRUITING Phase 2 20 participants

Reduced Intensity Haploidentical Transplantation for the Treatment of Primary or Secondary Myelofibrosis

Fred Hutchinson Cancer Center

NCT04370301

ACTIVE NOT RECRUITING Phase 2 61 participants

JAK Inhibitor Before Donor Stem Cell Transplant in Treating Patients With Primary or Secondary Myelofibrosis

Fred Hutchinson Cancer Center

NCT02251821

ACTIVE NOT RECRUITING Phase 2 59 participants

Itacitinib, Tacrolimus, and Sirolimus for the Prevention of GVHD in Patients With Acute Leukemia, Myelodysplastic Syndrome, or Myelofibrosis Undergoing Reduced Intensity Conditioning Donor Stem Cell Transplantation

City of Hope Medical Center

NCT04339101

ACTIVE NOT RECRUITING Phase 2 53 participants

Peritransplant Ruxolitinib for Patients With Primary and Secondary Myelofibrosis

Fred Hutchinson Cancer Center

NCT04384692

ACTIVE NOT RECRUITING Phase 1 22 participants

Combination Chemotherapy, Total Body Irradiation, and Donor Blood Stem Cell Transplant in Treating Patients With Secondary Myelofibrosis

City of Hope Medical Center

NCT03118492

ACTIVE NOT RECRUITING Phase 2 21 participants

Decitabine in Treating Patients With Myelofibrosis

National Cancer Institute (NCI)

NCT00095784

ACTIVE NOT RECRUITING Phase 2 20 participants

Adding Itacitinib to Cyclophosphamide and Tacrolimus for the Prevention of Graft Versus Host Disease in Patients Undergoing Hematopoietic Stem Cell Transplants

City of Hope Medical Center

NCT05364762

COMPLETED Phase 2 80 participants

Imetelstat Sodium in Treating Participants With Primary or Secondary Myelofibrosis

Geron Corporation

NCT01731951

COMPLETED Phase 2 32 participants

Sirolimus, Tacrolimus, and Antithymocyte Globulin in Preventing Graft-Versus-Host Disease in Patients Undergoing a Donor Stem Cell Transplant For Hematological Cancer

City of Hope Medical Center

NCT00589563

COMPLETED Early Phase 1 3 participants

Combination Chemotherapy, Total Body Irradiation, and Donor Blood Stem Cell Transplant in Treating Patients With Primary or Secondary Myelofibrosis

M.D. Anderson Cancer Center

NCT03426969

Phase Distribution

PhaseTrial count
Phase 1 2
Phase 2 11

Named interventions

Most-linked intervention names on Secondary Myelofibrosis records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.

Cyclophosphamide Drug
7 trials
Allogeneic Hematopoietic Stem Cell Transplantation Procedure
4 trials
Melphalan Drug
4 trials
Fludarabine Drug
4 trials
Laboratory Biomarker Analysis Other
3 trials
Busulfan Drug
3 trials
Fludarabine Phosphate Drug
2 trials
Ruxolitinib Drug
2 trials

US sites by state

Facility locations filed on Secondary Myelofibrosis trials. A trial with sites in several states counts in each.

Washington 5 trials
California 5 trials
Indiana 2 trials
Illinois 2 trials
Wisconsin 1 trials
Texas 1 trials
Ohio 1 trials
New York 1 trials

Source: ClinicalTrials.gov, National Library of Medicine. Data is informational only.

What to do with this Secondary Myelofibrosis page

13 registered trials, 4 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.

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. This Secondary Myelofibrosis condition card totals 13 registered trials; most-linked intervention Cyclophosphamide; top US site state Washington. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.