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ClinicalTrials.gov 41 recruiting now early-phase tilt

Brain Metastases: early-phase trial registry

41 of 68 indexed Brain Metastases trials are currently recruiting, with more weight in Phase 1-2.

Corpus placement: #203 of 28,707 conditions by registered trial count.

68 US clinical trials · 41 currently recruiting · #203 of 28,707 conditions by registered trial count

Brain Metastases: 68 US clinical trials tracked, 41 recruiting.

Brain Metastases is the subject of 68 registered US clinical trials on ClinicalTrials.gov, 41 of them currently open to new participants. 3 are in Phase 3-4 (later-stage) and 48 in Phase 1-2 (earlier-stage). The most active sponsor is M.D. Anderson Cancer Center, running 7 of these trials.

Enrollment posture brief

Registry condition brain-metastases

OPEN 41 | RECR 60% | LATE 3 | EARLY 48 | RANK #203 | SPON 7

Nearest open-share peer: Opioid Use Disorder (60% recruiting · 258 trials)

Diabetic Foot Ulcer61.8%Brain Metastases (this)60%Refractory Multiple Myeloma33.8%Stress Disorders, Post-Traum29.4%Acne Vulgaris2.9%
Open-enrollment share among volume-matched conditions near Brain Metastases

Brain Metastases lists 41 open slots (60% of 68 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 Brain Metastases 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. Brain Metastases is recruiting above its size-band peers.

    41 of 68 indexed trials (60.3%) are open to enrollment, against a 39.7% average across 762 conditions with 20-99 trials. The peer set uses the same ClinicalTrials.gov-derived counts as this page.

  2. Sponsorship of Brain Metastases trials is spread across many organizations.

    M.D. Anderson Cancer Center accounts for 7 of 68 trials (10.3%). 45 distinct sponsors appear on at least one study for this condition label.

  3. Most Brain Metastases trials plan to enrol fewer than 100 people.

    Median target enrolment is 46 among the 68 trials that report a genuine target (sentinel values excluded). 53 of those (77.9%) plan for fewer than 100 participants.

  4. Brain Metastases research is mostly interventional.

    62 interventional and 6 observational studies make up this index (91.2% interventional). Study type is sponsor-reported on ClinicalTrials.gov.

Phase 122Phase 226Phase 32Phase 41

Open and recent trials

68 total, page 1 of 2

RECRUITING 10,000 participants

Metachronic Brain Metastases After Esophagectomy for Esophageal Cancer (METABREC)

Universitaire Ziekenhuizen KU Leuven

NCT04654975

RECRUITING Phase 2 316 participants

EXCLAIM: Exploring Combined Local and Systemic Approaches In Brain Metastasis: a Multi-cohort Randomized Phase II Study Evaluating Initial Response to Systemic Therapy and Subsequent Integration of Stereotactic Radiosurgery in Patients With Low-risk Brain Metastases and Central Nervous System-active

M.D. Anderson Cancer Center

NCT06649058

RECRUITING NA 261 participants

REMASTer: REcurrent Brain Metastases After SRS Trial

Monteris Medical

NCT05124912

RECRUITING Phase 3 206 participants

Stereotactic Radiosurgery Compared With Hippocampal-Avoidant Whole Brain Radiotherapy (HA-WBRT) Plus Memantine for 5 or More Brain Metastases

Canadian Cancer Trials Group

NCT03550391

RECRUITING NA 180 participants

Trial of Differential Margins in Single Isocenter Radiosurgery of Brain Metastases

University of Alabama at Birmingham

NCT06857006

RECRUITING Phase 2 166 participants

Frameless Stereotactic Radiosurgery for Intact Brain Metastases

University of Chicago

NCT02747303

RECRUITING Phase 2 155 participants

Laser Interstitial Thermal Therapy (LITT) or Surgery and Adjuvant Reirradiation for Recurrent Brain Metastases (LaSAR BeaM)

M.D. Anderson Cancer Center

NCT07053033

RECRUITING Phase 2 120 participants

Phase II Trial of the PARP Inhibitor Niraparib and PD-1 Inhibitor Dostarlimab in Patients With Advanced Cancers With Active Progressing Brain Metastases (STARLET)

M.D. Anderson Cancer Center

NCT05700721

RECRUITING 119 participants

Developing a New MRI Technique to Understand Changes in Brain Tumors After Treatment

Memorial Sloan Kettering Cancer Center

NCT05559853

RECRUITING Phase 2 104 participants

Phase II Study of Pembrolizumab in Combination With Lenvatinib in Patients With TNBC, NSCLC, and Other Tumor Types and Brain Metastases

M.D. Anderson Cancer Center

NCT05064280

RECRUITING Phase 1 80 participants

Neurocognitive Decline in Patients With Brain Metastases

University of Texas Southwestern Medical Center

NCT03508752

RECRUITING Phase 2 62 participants

A Study of Stereotactic Radiosurgery (SRS) for People With Lung Cancer That Has Spread to the Brain

Memorial Sloan Kettering Cancer Center

NCT05419076

RECRUITING Phase 2 60 participants

Reducing the Incidence of Symptomatic Brain Metastases With MRI Surveillance

Wake Forest University Health Sciences

NCT05692635

RECRUITING NA 60 participants

Development of MRF for Characterization of Brain Tumors After Radiotherapy

Case Comprehensive Cancer Center

NCT06101069

RECRUITING Phase 2 60 participants

Trial of Relatlimab, Nivolumab, and Ipilimumab in Patients With Asymptomatic and Symptomatic Melanoma Brain Metastases

Stanford University

NCT06712927

RECRUITING Phase 1 56 participants

Delayed or Upfront Brain RAdiotherapy in Treatment naïve Lung Cancer Patients With Asymptomatic or Minimally Symptomatic Brain Metastases and ALK rEarrangements

Joshua Palmer

NCT05987644

RECRUITING Phase 2 54 participants

Brain Metastases in Greater Size - Hypofractionated Options Trial (BIGSHOT)

Medical University of South Carolina

NCT07227610

RECRUITING Phase 2 53 participants

Optimizing Neurocognition With Whole Brain Radiation Therapy (WBRT) Using Upfront Pulsed Reduced Dose-Rate (PRDR) Technique

Medical College of Wisconsin

NCT05045950

RECRUITING Phase 1 50 participants

Stereotactic Radiosurgery Dose Escalation for Brain Metastases

University of Utah

NCT02390518

RECRUITING Early Phase 1 48 participants

Image-Based, In-Vivo Assessment of Tumor Hypoxia to Guide Hypoxia-Driven Adaptive Radiation Therapy

Vanderbilt-Ingram Cancer Center

NCT05996432

RECRUITING Phase 1 46 participants

18F-Fluciclovine PET Amino Acid Evaluation of Brain Metastasis Treated With Stereotactic Radiosurgery

Baptist Health South Florida

NCT06048094

RECRUITING Phase 1 46 participants

Effect of Azeliragon Combined With Stereotactic Radiation Therapy in Patients With Brain Metastases

Baptist Health South Florida

NCT05789589

RECRUITING Phase 1 45 participants

Personalized Radiotherapy for Individualized Treatment Strategies and Monitoring (PRISM)

University of Texas Southwestern Medical Center

NCT07139990

RECRUITING Phase 1 43 participants

Phase I Study of Fractionated Stereotactic Radiation Therapy

Albert Einstein College of Medicine

NCT03726359

RECRUITING Phase 2 41 participants

NTS-WBRT in Brain Metastases

Massachusetts General Hospital

NCT05013892

RECRUITING Phase 1 41 participants

Pembrolizumab And Stereotactic Radiosurgery (Srs) Of Selected Brain Metastases In Breast Cancer Patients

Weill Medical College of Cornell University

NCT03449238

RECRUITING NA 35 participants

MeDex: No Perioperative Dexamethasone in Brain Metastases

University of Louisville

NCT07044557

RECRUITING Phase 1 33 participants

Defactinib and Avutometinib, With or Without Encorafenib, for the Treatment of Patients With Brain Metastases From Cutaneous Melanoma

University of Utah

NCT06194929

RECRUITING Phase 1 31 participants

Stereotactic Radiation & Abemaciclib in the Management of HR+/HER2- Breast Cancer Brain Metastases

H. Lee Moffitt Cancer Center and Research Institute

NCT04923542

RECRUITING NA 30 participants

Evaluation of the CONVIVO System

Dartmouth-Hitchcock Medical Center

NCT05139277

RECRUITING Phase 2 30 participants

A Phase II Study of Tucatinib and Ado-trastuzumab Emtansine (T-DM1) in Patients With HER2-positive Metastatic Solid Tumors and Metastases to Brain (TUCATEMEB)

M.D. Anderson Cancer Center

NCT05673928

RECRUITING NA 24 participants

Neurocognitive Functioning With Genu-Sparing Whole Brain Radiation Therapy for Brain Metastases

Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins

NCT03223922

RECRUITING Phase 1 20 participants

Assess Use of 18F-Fluciclovine for Patients With Large Brain Metastases Treated With Staged Stereotactic Radiosurgery

Baptist Health South Florida

NCT04689048

RECRUITING Phase 4 20 participants

Brain [18F]-FES PET/CT in Patients With Estrogen-Receptor Positive Breast Cancer

Weill Medical College of Cornell University

NCT06072807

RECRUITING 20 participants

7T Brain MRI Scan for Micro-brain Metastasis (microBM) Detection for Patients With Small-cell Lung Cancer (SCLC), Who Decline Prophylactic Cranial Irradiation (PCI)

University of Missouri-Columbia

NCT07175077

RECRUITING Phase 2 20 participants

Feasibility of 18F-Fluciclovine PET/CT to Identify Brain Metastasis

University of Arizona

NCT06055790

RECRUITING Phase 1 20 participants

Fluorine-18-AlphaVBeta6-Binding Peptide Positron Emission Tomography in Metastatic Non-Small Cell Lung Cancer

University of California, Davis

NCT05452005

RECRUITING Phase 2 20 participants

A Phase II Study of Nivolumab With Ipilimumab and Cabozantinib in Patients With Untreated Renal Cell Carcinoma Brain Metastases

M.D. Anderson Cancer Center

NCT05048212

RECRUITING Phase 2 20 participants

Characterization of 18F-Fluciclovine PET Amino Acid Radiotracer in Resected Brain Metastasis

Baptist Health South Florida

NCT05554302

RECRUITING NA 20 participants

A Pilot Study to Assess the Clinical Utility of 18F-Fluciclovine (Axumin) PET-CT for Detecting True-versus Pseudo-Progression of Brain Metastases on Immunotherapy

M.D. Anderson Cancer Center

NCT06015295

RECRUITING 15 participants

MRI Biomarkers for Radiation-Induced Neurocognitive Decline Following SRS of Newly Diagnosed Brain Mets

UNC Lineberger Comprehensive Cancer Center

NCT04073966

ACTIVE NOT RECRUITING Phase 3 230 participants

Post-Surgical Stereotactic Radiotherapy (SRT) Versus GammaTile-ROADS (Radiation One and Done Study)

GT Medical Technologies

NCT04365374

ACTIVE NOT RECRUITING NA 196 participants

Hippocampal Sparing Whole Brain Radiation Versus Stereotactic Radiation in Patients With 5-20 Brain Metastases: A Phase III, Randomized Trial

Dana-Farber Cancer Institute

NCT03075072

ACTIVE NOT RECRUITING Phase 2 134 participants

Stereotactic Brain-directed Radiation With or Without Aguix Gadolinium-Based Nanoparticles in Brain Metastases

Brigham and Women's Hospital

NCT04899908

ACTIVE NOT RECRUITING Phase 2 101 participants

Pembrolizumab In Central Nervous System Metastases

Massachusetts General Hospital

NCT02886585

ACTIVE NOT RECRUITING NA 100 participants

Stereotactic Radiation in Patients With Small Cell Lung Cancer and 1-10 Brain Metastases

Dana-Farber Cancer Institute

NCT03391362

ACTIVE NOT RECRUITING Phase 2 49 participants

Preop fSRS for Resectable Brain Metastases

H. Lee Moffitt Cancer Center and Research Institute

NCT05267587

ACTIVE NOT RECRUITING Phase 2 48 participants

Secondary BRain Metastases Prevention After Isolated Intracranial Progression on Trastuzumab/Pertuzumab or T-DM1 in Patients With aDvanced Human Epidermal Growth Factor Receptor 2+ brEast Cancer With the Addition of Tucatinib

Carey Anders, M.D.

NCT05323955

ACTIVE NOT RECRUITING NA 25 participants

MRI Following Stereotactic Radiosurgery (SRS) for Brain Metastases

Duke University

NCT04246879

ACTIVE NOT RECRUITING Early Phase 1 25 participants

Dose Escalation Trial of Neoadjuvant Radiosurgery for the Treatment of Metastatic Brain Tumors

Cedars-Sinai Medical Center

NCT03163368

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Phase Distribution

PhaseTrial count
Phase 1 22
Phase 2 26
Phase 3 2
Phase 4 1

Named interventions

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

Stereotactic Radiosurgery Radiation
6 trials
Pembrolizumab Drug
3 trials
Stereotactic Radiation Radiation
2 trials
Fractionated Stereotactic Radiation Therapy (FSRT) Radiation
2 trials
Memantine Drug
2 trials
Tucatinib Drug
2 trials
Stereotactic Radiosurgery (SRS) Radiation
2 trials
Cabozantinib Drug
2 trials

US sites by state

Facility locations filed on Brain Metastases trials. A trial with sites in several states counts in each.

Texas 15 trials
California 11 trials
Florida 10 trials
New York 9 trials
Ohio 7 trials
North Carolina 7 trials
Massachusetts 6 trials
New Jersey 5 trials

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

What to do with this Brain Metastases page

68 registered trials, 41 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 Brain Metastases condition card totals 68 registered trials; most-linked intervention Stereotactic Radiosurgery; top US site state Texas. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.