A Multicenter Prospective Study of Iptacopan in the Treatment of Refractory/Relapsed Autoimmune Hemolytic Anemia (AIHA)

To evaluate the efficacy and safety of ipecopam in the treatment of refractory/relapsed AIHA.

Study Overview

• Status: Not yet recruiting
• Conditions: AIHA - Warm Autoimmune Hemolytic Anemia; AIHA - Cold Autoimmune Hemolytic Anemia
• Intervention / Treatment: Drug: Iptacopan

• Study Type: Interventional
• Enrollment (Estimated): 20
• Phase: Not Applicable

Contacts and Locations

• Study Contact: Name: Bing Han Han; Phone Number: 13601059938; Email: Hanbing_li@sina.com.cn

Study Locations

• China
  • Beijing, China
    • Bing Han

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult; Older Adult
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

1. Voluntarily signed an informed consent form (ICF);
2. Males or females aged 18 or older;
3. Physical status score [Eastern Cooperative Oncology Group (ECOG) score] ≤2;
4. Confirmed diagnosis of primary AIHA or secondary autoimmune disease (except rheumatoid arthritis and systemic lupus erythematosus) with underlying disease in a stable state;
5. Poor response to at least previous glucocorticoid therapy, including ineffective (defined as failure to achieve stabilization of Hb levels at 100 g/L or erythrocyte hematocrit <30% despite at least 4 weeks of treatment with previously recommended doses), or glucocorticoid-dependent (defined as maintenance of equal doses of prednisone exceeding 15 mg/d), or relapsed (defined as treatment that is effective and then again has an Hb of <100 g/L or an erythrocyte hematocrit of <30%), or otherwise contraindicated. 30%), or otherwise contraindicated or intolerant to glucocorticoid therapy;
6. Hemoglobin (Hb) <100 g/L before drug administration;
7. Positive direct anti-human globulin test (DAT) (IgA, IgM or IgG+, with or without C3+).
8. Combination of one anti-AIHA therapy [glucocorticoids only (≤15 mg prednisone equivalent), immunosuppressants (azathioprine, cyclosporine, and merti-macrolide only)] is permitted in this study, provided that the dose has been stable for at least 28 days prior to enrollment;

9. Laboratory tests meet the following criteria (no treatment for the abnormality of the index within 2 weeks prior to blood collection, or no long-acting G-CSF treatment within 2 weeks)

   1. Neutrophil count >1.5×109/L and platelet >30×109/L;
   2. ALT and AST ≤ 2 × ULN;
   3. Serum creatinine concentration ≤ 2 × ULN and creatinine clearance ≥ 50mL/min;
10. No active infection; no pregnancy or lactation;
11. cAIHA patients presenting with skin cyanosis and thrombosis;
12. Written evidence of Neisseria meningitidis and Streptococcus pneumoniae vaccinations within 2 years or, if none, antibiotic prophylaxis until 2 weeks after completion of vaccination.

Exclusion Criteria:

1. Presence of secondary AIHA outside the inclusion criteria;
2. Hb <100 g/L due to non-AIHA factors; and
3. Infections requiring systemic therapy;
4. Those with a past history of malignancy (except cured basal cell carcinoma of the skin or cervical carcinoma in situ);
5. With history of vital organ transplantation or hematopoietic stem cell/bone marrow transplantation;
6. Those who have undergone splenectomy within 24 weeks prior to enrollment;
7. Those who have had major surgery within four weeks prior to enrollment or who require major elective surgery during the study period;
8. History of severe cardiovascular disease [e.g., class III/IV congestive heart failure, arrhythmia or angina requiring medication, unstable angina, coronary stenting, angioplasty or coronary artery bypass grafting, or corrected Q-T interval (QTcF) ≥ 90 mmHg]
9. Patients with medically uncontrolled hypertension (systolic blood pressure ≥140 mmHg or diastolic blood pressure ≥90 mmHg); or comorbid portal hypertension;
10. Patients with severe gastrointestinal disorders such as dysphagia, active gastric ulcers, etc., who are unable to take drugs orally or have impaired absorption of oral drugs;
11. Human immunodeficiency virus (HIV) infection
12. Uncontrolled or active HBV infection [Hepatitis B surface antigen (HBsAg) or Hepatitis B core antibody (HBcAb) positive patients, need to confirm Hepatitis B Virus Deoxyribonucleic Acid (HBV DNA) positive]; or Hepatitis C [patients with Hepatitis C Virus Ribonucleic Acid (HCV RNA) positive patients]; or cirrhosis of the liver;
13. Those who had received herbal treatment within one week prior to enrollment that interfered with the assessment of efficacy;
14. Patients with severe psychological or psychiatric abnormalities;
15. Alcohol or drug abusers;
16. Female patients who are pregnant or breastfeeding;
17. Patients who, in the opinion of the investigator, are not suitable for participation in this study.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Non-Randomized
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Iptacopan-AIHA	Drug: Iptacopan; Iptacopan

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
OR	Overall response rate	3 months
CR	complete response rate	6 months

Collaborators and Investigators

• Sponsor: Bing Han

Study record dates

Study Major Dates

• Study Start (Estimated): March 1, 2025
• Primary Completion (Estimated): October 30, 2025
• Study Completion (Estimated): June 30, 2026

Study Registration Dates

• First Submitted: February 21, 2025
• First Submitted That Met QC Criteria: February 21, 2025
• First Posted (Actual): March 25, 2025

Study Record Updates

• Last Update Posted (Actual): March 25, 2025
• Last Update Submitted That Met QC Criteria: February 21, 2025
• Last Verified: February 1, 2025

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Pathologic Processes; Autoimmune Diseases; Immune System Diseases; Hematologic Diseases; Anemia; Hemolysis; Anemia, Hemolytic; Anemia, Hemolytic, Autoimmune
• Other Study ID Numbers: AIHA-Iptacopan

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No