A Ph1b/2 Study of Axatilimab Monotherapy in Chinese Participants With Recurrent or Refractory cGVHD

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE1/PHASE2

Total Enrollment

30 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-06-25

Study Completion Date

2027-12-31

Brief Summary

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This study will be conducted to evaluate the safety, efficacy, and pharmacokinetics of axatilimab monotherapy in Chinese participants with recurrent or refractory active chronic graft-versus-host disease after systemic therapy.

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Detailed Description

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Conditions

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Chronic Graft-versus-host-disease

Study Design

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Allocation Method

NA

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Part 1 Safety Evaluation

Axatilimab at the protocol-defined dose.

Group Type EXPERIMENTAL

INCA034176

Intervention Type DRUG

IV infusion

Part 2 Efficacy Evaluation

Axatilimab at the protocol-defined dose.

Group Type EXPERIMENTAL

INCA034176

Intervention Type DRUG

IV infusion

Interventions

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INCA034176

IV infusion

Intervention Type DRUG

Other Intervention Names

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Axatilimab

Eligibility Criteria

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Inclusion Criteria

* At least 12 years of age at the time of signing the ICF.
* Ability to comprehend and willingness to sign a written ICF for the study.

• For participants 12 to 17 years old: A parent/guardian must provide consent for pediatric participants; when applicable, pediatric participants should also sign an assent form.
* Chinese participants who are allo-HSCT recipients with active, refractory, or recurrent cGVHD requiring systemic immune suppression despite prior systemic therapy, including corticosteroids and at least 1 other appropriate treatment for refractory or recurrent cGVHD.

* Active cGVHD is defined as the presence of signs and symptoms of cGVHD per the 2014 NIH Consensus Development Project on Criteria for Clinical Trials in cGVHD (Jagasia et al 2015).
* Refractory disease is defined as meeting any of the following criteria:

* The development of 1 or more new sites of disease while being treated for cGVHD.
* Progression of existing sites of disease despite at least 1 month of standard or investigational therapy for cGVHD.
* Participants who did not achieve a response within 3 months on prior therapy for cGVHD and for whom the treating physician believes a new systemic therapy is required.
* Recurrent cGVHD is defined as active, symptomatic disease (after an initial response to prior therapy) based on the NIH 2014 consensus criteria (Lee et al 2015) by organ-specific or global assessment or for which the physician believes a new line of systemic therapy is required.
* Participants may have persistent, active aGVHD and cGVHD manifestations (overlap syndrome), as defined by the 2014 NIH Consensus Development Project on Criteria for Clinical Trials in cGVHD.
* Karnofsky performance score of ≥ 60 (if aged 16 years or older); Lansky performance score of ≥ 60 (if aged younger than 16 years).
* Adequate organ and bone marrow functions evaluated during the 14 days prior to the start of study treatment as follows:

* Absolute neutrophil count ≥ 1.0 × 109/L (without growth factors within 1 week of study entry).
* Platelet count ≥ 50 × 109/L (without growth factor or transfusion within 2 weeks of study entry).
* ALT and AST ≤ 2.5 × ULN and total bilirubin ≤ 1.5 × ULN. Note: For participants with suspected or documented liver cGVHD: ALT and AST ≤ 5 × ULN and total bilirubin ≤ 1.5 × ULN.
* Creatinine clearance ≥ 30 mL/min/1.73 m2 based on the Cockcroft-Gault formula in adult participants and the Schwartz formula in pediatric participants.
* Concomitant use of a systemic corticosteroid is allowed but not required. Topical and inhaled corticosteroid agents are allowed. If a participant is taking a corticosteroid, it must be a stable dose for at least 2 weeks prior to the start of study treatment.
* Concomitant use of CNIs or mTOR inhibitors is allowed but not required (the inhibitor may have been started either for prophylaxis or for treatment of cGVHD; the reason for initiating treatment must be recorded in the database). If a participant is taking a CNI or an mTOR inhibitor, the following criteria must be met:

* Must be a stable dose for at least 2 weeks prior to the start of study treatment.
* The dose must be within the therapeutic range.
* Willingness to avoid pregnancy or fathering children based on the criteria below.

* Male participants with reproductive potential must agree to take appropriate precautions to avoid fathering children from screening through 90 days (a spermatogenesis cycle) after the last dose of study treatment and must refrain from donating sperm during this period. Permitted methods in preventing pregnancy should be communicated to the participants and their understanding confirmed.
* Female participants who are WOCBP must have a negative serum pregnancy test at screening and a negative urine pregnancy test before the first dose on Day 1 and must agree to take appropriate precautions to avoid pregnancy from screening through 30 days (1 menstrual cycle) after the last dose of study treatment and must refrain from donating oocytes during this period. Permitted methods in preventing pregnancy should be communicated to the participants and their understanding confirmed.
* Female participants not considered to be of childbearing potential as defined in the protocol are eligible.

Exclusion Criteria

* Has aGVHD without manifestations of cGVHD.
* Any evidence (histologic, cytogenetic, molecular, hematologic, or mixed) of relapse of the underlying cancer or post-transplant lymphoproliferative disease at the time of screening.
* History of acute or chronic pancreatitis.
* Active symptomatic myositis.
* History or other evidence of severe illness, uncontrolled infection, allergy to excipients (see formulation details in the IB), or any other conditions that would make the participant, in the opinion of the investigator, unsuitable for the study.
* Positive HIV status.
* History of latent or active TB, including either one of following:

* Signs or symptoms suggestive of active TB upon medical history and/or physical examination.
* Recent close contact with a person with active TB.
* Positive QuantiFERON and/or T-spot TB test at screening.
* Active HBV or HCV infection that requires treatment, or at risk for HBV reactivation (ie, positive HBsAg). Participants with negative HBsAg and positive total HBcAb and/or HBsAb should be excluded if quantitative HBV DNA test result is ≥ 20 IU/mL at the time of screening. Participants who are positive for HCV antibody are eligible only if PCR is negative for HCV RNA.
* Diagnosed with another malignancy (other than malignancy for which transplant was performed) within 3 years before Cycle 1 Day 1 unless previously treated with curative intent (eg, completely resected basal cell or squamous cell carcinoma of the skin, resected in situ cervical malignancy, resected breast ductal carcinoma in situ, or low-risk prostate cancer after curative resection) and approved by the sponsor's medical monitor.
* Pregnant or breastfeeding.
* Previous exposure to CSF-1R targeted therapies.
* Use of any agent other than corticosteroids, CNIs, or mTOR inhibitors for the treatment of cGVHD within 2 weeks or 5 half-lives, whichever is shorter, prior to the start of study treatment.
* Has received an investigational treatment within 28 days prior to the start of study treatment.
* Currently participating in any other interventional study.

Minimum Eligible Age

12 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No