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ClinicalTrials.gov public records Last synced May 21, 2026, 6:55 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–10 of 10 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Systemic Mastocytoses, Indolent Clear all
Recruiting No phase listed Observational
View directory record Official record
Conditions
Indolent Systemic Mastocytosis
Interventions
Not listed
Lead sponsor
Blueprint Medicines Corporation
Industry
Eligibility
18 Years and older
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2032
U.S. locations
1
States / cities
Chestnut Hill, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 21, 2026 · Synced May 21, 2026, 6:55 PM EDT
Available No phase listed Expanded access
View directory record Official record
Conditions
Systemic Mastocytoses, Indolent, Systemic Mastocytoses, Aggressive
Interventions
Bezuclastinib
Drug
Lead sponsor
Cogent Biosciences, Inc.
Industry
Eligibility
18 Years and older
U.S. locations
20
States / cities
La Jolla, California • Los Angeles, California • Normal, Illinois + 14 more
Source: ClinicalTrials.gov public record
Updated May 7, 2026 · Synced May 21, 2026, 6:55 PM EDT
Recruiting Phase 2Phase 3 Interventional
View directory record Official record
Conditions
Indolent Systemic Mastocytosis, Smoldering Systemic Mastocytosis
Interventions
Elenestinib, Placebo
Drug
Lead sponsor
Blueprint Medicines Corporation
Industry
Eligibility
18 Years and older
Enrollment
534 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2032
U.S. locations
14
States / cities
Birmingham, Alabama • Los Angeles, California • Palo Alto, California + 11 more
Source: ClinicalTrials.gov public record
Updated Apr 19, 2026 · Synced May 21, 2026, 6:55 PM EDT
Completed Phase 3 Interventional
View directory record Official record
Conditions
Indolent Systemic Mastocytosis
Interventions
Masitinib, Placebo, Best Supportive Care
Drug · Other
Lead sponsor
AB Science
Industry
Eligibility
18 Years to 75 Years
Enrollment
135 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2015
U.S. locations
2
States / cities
Sacramento, California • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Dec 2, 2019 · Synced May 21, 2026, 6:55 PM EDT
Active, not recruiting Phase 2 Interventional
View directory record Official record
Conditions
Indolent Systemic Mastocytosis
Interventions
Avapritinib, Placebo
Drug
Lead sponsor
Blueprint Medicines Corporation
Industry
Eligibility
18 Years and older
Enrollment
251 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2027
U.S. locations
19
States / cities
Birmingham, Alabama • Phoenix, Arizona • Stanford, California + 15 more
Source: ClinicalTrials.gov public record
Updated Sep 22, 2025 · Synced May 21, 2026, 6:55 PM EDT
Recruiting Phase 2 Interventional
View directory record Official record
Conditions
Myelofibrosis, Indolent Systemic Mastocytosis
Interventions
TL-895, Placebo
Drug
Lead sponsor
Telios Pharma, Inc.
Industry
Eligibility
18 Years and older
Enrollment
121 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
6
States / cities
Aurora, Colorado • Rochester, Minnesota • Canton, Ohio + 3 more
Source: ClinicalTrials.gov public record
Updated May 9, 2024 · Synced May 21, 2026, 6:55 PM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
Aggressive Systemic Mastocytosis (ASM), SM w Assoc Clonal Hema Non-mast Cell Lineage Disease (SM-AHNMD), Mast Cell Leukemia (MCL), Smoldering Systemic Mastocytosis (SSM), Indolent Systemic Mastocytosis (ISM) ISM Subgroup Fully Recruited
Interventions
Interview
Other
Lead sponsor
Adelphi Values LLC
Industry
Eligibility
18 Years and older
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 9, 2017 · Synced May 21, 2026, 6:55 PM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Indolent Systemic Mastocytosis
Interventions
sarilumab, Placebo
Biological · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 75 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 16, 2024 · Synced May 21, 2026, 6:55 PM EDT
Active, not recruiting Phase 2 Interventional
View directory record Official record
Conditions
SSM, Mastocytosis, Indolent, Mastocytosis, Systemic, Mastocytosis, ISM, BMM, Smoldering Systemic Mastocytosis, Bone Marrow Mastocytosis
Interventions
Bezuclastinib Tablets (Formulation A), Bezuclastinib Tablets (Formulation B), Placebo Tablets
Drug
Lead sponsor
Cogent Biosciences, Inc.
Industry
Eligibility
18 Years and older
Enrollment
237 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2030
U.S. locations
24
States / cities
Birmingham, Alabama • Phoenix, Arizona • Scottsdale, Arizona + 20 more
Source: ClinicalTrials.gov public record
Updated Mar 3, 2026 · Synced May 21, 2026, 6:55 PM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
Mastocytosis
Interventions
Not listed
Lead sponsor
Blueprint Medicines Corporation
Industry
Eligibility
Not listed
Enrollment
743 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2021
U.S. locations
1
States / cities
Cambridge, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 3, 2021 · Synced May 21, 2026, 6:55 PM EDT