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Immune ThrombocytopeniaPhase 2NCT07104565

Study to Assess the Safety and Tolerability of Tafasitamab in Adult Participants With Primary Autoimmune Blood Cell Disorders

A Phase 2 study testing INCA000585 in people with Immune Thrombocytopenia, run by Incyte Corporation at 39 sites in 7 countries.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
Search all trials

Trial summary

This study will evaluate the safety and efficacy of tafasitamab in adult participants with primary autoimmune blood cell disorders. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Immune Thrombocytopenia
What is being tested?
INCA000585
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
56 participants
Where
39 sitesin 7 countries
Study dates
29 Dec 2025to 9 Mar 2028
Phase
Phase 2
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Ability to comprehend and willingness to sign a written ICF for the study.
  • Aged ≥ 18 years.
  • Confirmed historical diagnosis of one of the following autoimmune blood disorders:
  • Primary ITP.
  • Primary wAIHA.
  • No history of splenectomy.
Show all 19Show fewer
  • Confirmed transient response to at least 1 prior early-line treatment (eg, corticosteroids, IVIG, rituximab):
  • Primary ITP: Increase in platelet count to ≥ 30 × 109/L with at least a 2-fold increase of baseline platelet count.
  • Primary wAIHA: Increase in hemoglobin to ≥ 10 g/dL with an increase of at least 2 g/dL from baseline.
  • Received ≥ 1 standard course of rituximab (375 mg/kg × 4 weekly doses or 2 doses of 1000 mg flat dose every 2 weeks) with last dose given at least 6 months prior to initiation of study treatment. Note: If rituximab was the only prior therapy, individuals with NR to rituximab will not be eligible.
  • Primary ITP: a PR (platelet count ≥ 30 × 109/L with at least a 2-fold increase of baseline platelet count) within 6 months of the last administered dose followed by relapse OR a CR (platelet count > 100 × 109/L) lasting < 48 weeks OR NR (platelet count < 30 × 109/L or less than 2-fold increase of baseline platelet count or bleeding) within 6 months of the last administered dose.
  • Primary wAIHA: a PR with hemoglobin ≥ 10 g/dL and with an increase of at least 2 g/dL from baseline OR a CR (hemoglobin ≥ 12 g/dL and normalization of hemolytic markers) OR NR (hemoglobin < 10 g/dL or < 2 g/dL increase of baseline hemoglobin).
  • Persistent or chronic active primary ITP or active primary wAIHA with indication for treatment at the time of inclusion.
  • Primary ITP: platelet count < 30 × 109/L within the 15 days before treatment is scheduled to begin (Day 1).
  • Note: Participants treated with a rescue therapy during screening in response to a documented platelet count < 30 × 109/L are eligible, irrespective of platelet count within 15 days of Day 1.
  • Primary wAIHA: hemoglobin < 10 g/dL documented with DAT result positive for IgG, with or without C3d, and evidence of hemolysis based on low haptoglobin, elevated LDH, and/or indirect bilirubin.
  • ECOG performance status of 0 to 2.
  • Willingness to avoid pregnancy or fathering children.
  • Further inclusion criteria apply.

Who cannot join

  • Clinical manifestations typical for cold agglutinin disease.
  • Life-threatening bleeding or urgent need to elevate the platelet count for primary ITP or hemodynamic instability or hemoglobin < 6 g/dL with urgent need to elevate hemoglobin for primary wAIHA within 2 weeks prior to Day 1.
  • Prior treatment with anti-CD19 therapy (eg, mAb, bispecific T-cell engager, or CAR T cell) for any indication.
  • Previous severe allergic reaction to a mAb or known allergy to any component/excipient of tafasitamab.
  • Changes in doses (> 10%) of permitted disease-related therapies, including oral corticosteroids and TPO-RA (primary ITP participants) within 2 weeks prior to Day 1, or change in ESA (primary wAIHA participants) dose within 2 weeks prior to Day 1.
  • Evidence of hypogammaglobulinemia during screening (IgA < 70 mg/dL, IgG < 700 mg/dL, and/or IgM < 40 mg/dL) and frequent and/or severe infections.
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  • Women who are pregnant or breastfeeding.
  • History of malignancy except for the following:
  • Malignancy treated with curative intent with no evidence of active disease for more than 2 years before screening.
  • Adequately treated lentigo maligna melanoma without current evidence of disease or adequately controlled nonmelanoma skin cancer.
  • Adequately treated carcinoma in situ without current evidence of disease.
  • Congestive heart failure (left ventricular ejection fraction of < 50%, assessed by 2 dimensional echocardiography or a multigated acquisition scan).
  • Participants with:
  • Known positive test result for HCV (with HCV antibody serology testing) and a positive test for HCV RNA.
  • Note: Participants with positive serology must have been tested for HCV RNA and are eligible only in the case of negative HCV RNA test result.
  • Known positive test result for chronic HBV infection (defined by HBsAg positivity or positive HBV DNA test result).
  • Note: Participants with occult or prior HBV infection (defined as negative HBsAg and positive total HBcAb) may be included if HBV DNA was undetectable, provided that they are willing to undergo monthly ongoing DNA testing. Antiviral prophylaxis may be administered as per institutional guidelines.
  • Note: Participants who have protective titers of HBsAb (HBsAb positive, HBcAb negative, and HBsAg negative) after vaccination or prior HBV infection are eligible.
  • Seropositivity for or history of active viral infection with HIV.
  • Active systemic infection (including infection with SARS-CoV-2).
  • Participants in a severely immunocompromised state, per investigator's clinical assessment.
  • Receipt of a live-attenuated vaccine within 4 weeks prior to the first infusion of tafasitamab (inactivated and killed vaccines are acceptable).
  • Coagulation or platelet function abnormality.
  • An active medical condition with a strong indication for treatment with anticoagulation agents (eg, intracoronary stent within 12 months).
  • Any condition that would, in the investigator's judgment, interfere with full participation in the study, including administration of study treatment and attending required study visits; pose a significant risk to the participant; or interfere with interpretation of study data.
  • Toxicities related to prior therapies must be CTCAE (v5.0) ≤ Grade 1 at the time of study treatment/enrollment (except for chronic toxicities [≤ Grade 2] not expected to resolve).
  • Chronic infectious disease requiring systemic antibiotics or antifungal or antiviral medications.
  • Unwillingness to undergo transfusion with blood components.
  • Current use of prohibited medication as described in the protocol.
  • Inadequate recovery from toxicity and/or complications from a major surgery before starting therapy.
  • Further exclusion criteria apply.

Trial locations and contacts

39 sites in 7 countries. Contact the study team or a site near you to ask about taking part.

Incyte Corporation Call Center (US) contact

1.855.463.3463

medinfo@incyte.com

Incyte Corporation Call Center (ex-US) contact

+800 00027423

eumedinfo@incyte.com

39 sites in 7 countries

United States9 sites, 9 recruiting
  • Beth Israel Deaconess Medical Center

    Boston, Massachusetts, 02215

    Recruiting
  • Gnp Research

    Cooper City, Florida, 33024

    Recruiting
  • Inova Schar Cancer Institute

    Fairfax, Virginia, 22031

    Recruiting
  • Palo Verde Cancer Specialists Palo Verde Hematology Oncology, Ltd Glendale

    Glendale, Arizona, 85304

    Recruiting
  • Rocky Mountain Cancer Centers

    Lone Tree, Colorado, 80124

    Recruiting
  • Usc Norris Comprehensive Cancer Center

    Los Angeles, California, 90033

    Recruiting
  • Yale New Haven Hospital

    New Haven, Connecticut, 06510

    Recruiting
  • Fred Hutchinson Cancer Center

    Seattle, Washington, 98109

    Recruiting
  • Montefiore Medical Center

    The Bronx, New York, 10461

    Recruiting

Other trials in United States

Italy8 sites, 8 recruiting
  • Azienda Ospedaliero-Universitaria Orsola-Malpighi - Universita Degli Studi Di Bologna

    Bologna, 40138

    Recruiting
  • Azienda Socio Sanitaria Territoriale Degli Spedali Civili Di Brescia (Presidio Montichiari)

    Brescia, 25123

    Recruiting
  • Istituto Romagnolo Per Lo Studio Dei Tumori Dino Amadori

    Meldola, 47013

    Recruiting
  • Fondazione Irccs Ca' Granda - Ospedale Maggiore Policlinico

    Milan, 20122

    Recruiting
  • Ospedale San Raffaele

    Milan, 20132

    Recruiting
  • Azienda Ospedaliera Universitaria Federico Ii

    Naples, 80131

    Recruiting
  • Azienda Ospedale Universita Di Padova

    Padova, 35128

    Recruiting
  • Fondazione Policlinico Universitario Agostino Gemelli Irccs

    Roma, 00136

    Recruiting

Other trials in Italy

France7 sites, 7 recruiting
  • Chu Angers - Hôpital Hôtel Dieu

    Angers, 49933

    Recruiting
  • Chu Caen - Hôpital de La Côte de Nacre

    Caen, 14033

    Recruiting
  • Hôpital Henri Mondor

    Créteil, 94010

    Recruiting
  • Chu Dijon - Hopital Du Bocage

    Dijon, 21079

    Recruiting
  • Chu Bordeaux - Hôpital Haut-Lévêque

    Pessac, 33604

    Recruiting
  • Hopital Purpan

    Toulouse, 31059

    Recruiting
  • Chru de Nancy- Hopital de Brabois

    Vandœuvre-lès-Nancy, 54500

    Recruiting

Other trials in France

Australia6 sites, 6 recruiting
  • Box Hill Hospital

    Box Hill, Victoria, 03128

    Recruiting
  • Monash Medical Centre Clayton

    Clayton, Victoria, 03168

    Recruiting
  • St Vincent'S Hospital Sydney

    Darlinghurst, New South Wales, 02010

    Recruiting
  • Townsville University Hospital

    Douglas, Queensland, 04814

    Recruiting
  • The Alfred Hospital

    Melbourne, Victoria, 03004

    Recruiting
  • Princess Alexandra Hospital Australia

    Woolloongabba, Queensland, 04102

    Recruiting

Other trials in Australia

Netherlands4 sites, 4 recruiting
  • Amsterdam Umc, Locatie Vumc

    Amsterdam, 1105 AZ

    Recruiting
  • Radboudumc

    Nijmegen, 6500 HB

    Recruiting
  • Erasmus Medisch Centrum

    Rotterdam, 3015 GD

    Recruiting
  • University Medical Center Utrecht

    Utrecht, 3584 CX

    Recruiting

Other trials in Netherlands

United Kingdom3 sites, 3 recruiting
  • Castle Hill Hospital

    Cottingham, HU16 5JQ

    Recruiting
  • Barts Hospital

    London, E1 2ES

    Recruiting
  • Plymouth Hospitals Nhs Trust

    Plymouth, PL6 8DH

    Recruiting

Other trials in United Kingdom

Spain2 sites, 2 recruiting
  • Ico Badalona. Hospital Universitario Germans Trias I Pujol

    Badalona, 08916

    Recruiting
  • Hospital Universitario La Paz

    Madrid, 28046

    Recruiting

Other trials in Spain

About this study

Official title: A Phase 2a, Open-Label, Multicenter Study of Tafasitamab in Adult Participants With Primary Autoimmune Blood Cell Disorders

This study will evaluate the safety and efficacy of tafasitamab in adult participants with primary autoimmune blood cell disorders.

Being tested
INCA000585
Keywords
primary warm autoimmune hemolytic anemia, primary immune thrombocytopenia, anti-CD19 monoclonal antibody
Medical subject headings
Purpura, Thrombocytopenic, Idiopathic

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • INCA000585Drug

    Tafasitamab will be administered intravenously at protocol defined timepoints.

Study groups in NCT07104565
Study groupRoleWhat they receive
Cohort 1 - primary immune thrombocytopenia (ITP)ExperimentalINCA000585 will be administered intravenously.
Receives: Drug: INCA000585
Cohort 2 - primary warm autoimmune hemolytic anemia (wAIHA)ExperimentalINCA000585 will be administered intravenously.
Receives: Drug: INCA000585

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Number of participants with Treatment-emergent Adverse Events (TEAEs)

    Defined as any adverse event, either reported for the first time or worsening of a pre-existing event after the first dose of study drug up to 90 days after the last dose of study drug.

    Measured: Up to 52 weeks

  2. Stable platelet response

    Defined as platelet count ≥ 50 × 109/L in the absence of clinically significant bleeding or rescue therapy at ≥ 2 consecutive assessments any time after Day 56 until Week 48 in participants with primary ITP.

    Measured: After Day 56 up to Week 48

  3. Stable hemoglobin response

    Defined as hemoglobin ≥ 10 g/dL and a ≥ 2 g/dL increase from baseline in the absence of rescue therapy at ≥ 2 consecutive assessments any time after Day 56 until Week 48 in participants with primary wAIHA.

    Measured: After Day 56 up to Week 48

Secondary outcomes (14)
  1. Complete Response (CR)

    Defined as platelet count ≥ 100 × 109/L at Week 24 in the absence of clinically significant bleeding or rescue therapy in participants with primary ITP.

    Measured: Week 24

  2. CR (complete remission)

    Defined as platelet count ≥ 100 × 109/L at Week 48 in the absence of clinically significant bleeding or rescue therapy in participants with primary ITP.

    Measured: Week 48

  3. Partial Response (PR)

    Defined as platelet count ≥ 30 × 109/L and at least a 2-fold increase of baseline platelet count at Week 24 in the absence of clinically significant bleeding or rescue therapy in participants with primary ITP.

    Measured: Week 24

  4. Duration of stable platelet response

    Defined as time from start of stable platelet response to loss of platelet response (< 50 × 109/L), clinically significant bleeding, need for rescue therapy, or death, whichever occurs first in participants with primary ITP.

    Measured: Up to Week 48

  5. Duration of CR

    Defined as time from the start of CR to loss of CR (platelet count < 100 × 109/L), clinically significant bleeding, need for rescue therapy, or death, whichever occurs first in participants with primary ITP.

    Measured: Up to Week 48

  6. Duration of response

    Defined as time from the date of the first response (PR or CR) to the loss of response (platelet count < 30 × 109/L or a less than a 2-fold increase of baseline platelet count), clinically significant bleeding, need for rescue therapy, or death, whichever occurs first in participants with primary ITP.

    Measured: Up to Week 48

  7. CR

    Defined as hemoglobin ≥ 12 g/dL and normalization of hemolytic markers (unconjugated bilirubin, LDH, haptoglobin, and reticulocytes) at Week 24 in the absence of rescue therapy in participants with primary wAIHA.

    Measured: Week 24

  8. CR (Complete remission)

    Defined as hemoglobin ≥ 12 g/dL and normalization of hemolytic markers (unconjugated bilirubin, LDH, haptoglobin, and reticulocytes) at Week 48 in the absence of rescue therapy in participants with primary wAIHA.

    Measured: Week 48

  9. PR

    Defined as hemoglobin ≥ 10 g/dL and a ≥ 2 g/dL increase from baseline at Week 24 in the absence of rescue therapy in participants with primary wAIHA.

    Measured: Week 24

  10. Duration of stable hemoglobin response

    Defined as time from start of stable hemoglobin response to loss of stable hemoglobin response (< 10 g/dL or a < 2 g/dL increase from baseline), need for rescue therapy, or death, whichever occurs first in participants with primary wAIHA.

    Measured: Up to Week 48

  11. Duration of CR

    Defined as time from start of CR to loss of CR (hemoglobin < 12 g/dL or abnormal hemolytic markers [unconjugated bilirubin, LDH, haptoglobin, and reticulocytes]), need for rescue therapy, or death, whichever occurs first in participants with primary wAIHA.

    Measured: Up to Week 48

  12. Duration of response

    Defined as time from the date of the first response (PR or CR) to the loss of response (hemoglobin < 10 g/dL), need for rescue therapy, or death, whichever occurs first in participants with primary wAIHA.

    Measured: Up to Week 48

  13. Serum concentrations of tafasitamab

    Serum concentrations of tafasitamab at each assessed timepoint.

    Measured: Up to Week 48

  14. Change from baseline in serum antidrug antibody levels

    Measured: Up to Week 48

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted5 Aug 2025
  2. Study start29 Dec 2025
  3. Primary completion23 Sep 2027 (estimated)
  4. Study completion9 Mar 2028 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
56 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07104565
Sponsor's protocol ID
INCA000585-201
Status last verified
Oct 2026
First submitted
29 Jul 2025
Last updated
30 Oct 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
Yes: Incyte shares data with qualified external researchers after a research proposal is submitted. These requests are reviewed and approved by a review panel on the basis of scientific merit. All data provided is anonymized to respect the privacy of patients who have participated in the trial in line with applicable laws and regulations. The trial data availability is according to the criteria and process described on https://www.incyte.com/our-company/compliance-and-transparency

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing INCA000585 in people with Immune Thrombocytopenia, run by Incyte Corporation at 39 sites in 7 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 19 inclusion and 31 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 30 Oct 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 39 sites in United States, Italy, France, Australia, Netherlands and 2 more countries. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Incyte Corporation Call Center (US) (1.855.463.3463, medinfo@incyte.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Number of participants with Treatment-emergent Adverse Events (TEAEs) (time frame: Up to 52 weeks). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 30 Oct 2026.

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