Autologous Stem Cell Transplantation for Patients With AL Amyloidosis
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- This is an observational study: the protocol does not assign a study treatment.
- Who it may be relevant to
- Registry conditions: AL Amyloidosis, Plasma Cell Dyscrasia. Basic parameters: 18 years — 75 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- China
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Overview
This study mainly evaluated the efficacy and safety of autologous stem cell transplantation for the treatment of AL amyloidosis, the role of induction and maintenance therapy in autologous stem cell transplantation, and the long-term efficacy and prognosis risk factors of autologous stem cell transplantation for the treatment of AL amyloidosis.
Detailed description
This study is divided into two parts. In the first part, the investigators retrospectively analyze the data of patients with AL amyloidosis who treated with autologous stem cell transplantation from July 2010 to December 2019. All patients had a biopsy-proven disease by positive Congo red stain with a concomitant demonstration of plasma cell dyscrasia. Organ involvement was established according to the criteria established at the 10th International Symposium on Amyloid and Amyloidosis. The protocol of ASCT included mobilization with colony-stimulating factor alone and conditioning with high-dose melphalan 140 or 200 mg/m2. In addition to analyzing the efficacy and safety of all the patients, the investigators also analyzed the difference in efficacy between patients in different subgroups. For example, subgroups divided according to different induction treatment regimens; subgroups divided according to different plasma cell FISH data and FCM data; subgroups divided according to the degree of organ involvement, and subgroups divided according to different maintenance treatment regimens.
In the second part of the study, the investigators will conduct a prospective study to explore the best autologous stem cell transplantation treatment protocol for AL amyloidosis. The protocol includes the induction therapy with bortezomib and daratumumab before ASCT, the maintenance treatment with lenalidomide after ASCT, and the treatment options for recurrence after transplantation.
Primary outcome measures
- overall survival [Time frame: 5 years]
- progression-free survival [Time frame: 5 years]
- hematological complete response rate [Time frame: 1 year]
- organ response rate [Time frame: 1 year]
Secondary outcome measures (4)
- hematological overall response rate [Time frame: 1 year]
- the relapse rate of complete remission participants [Time frame: 5 years]
- the rate of Minimal Residual Disease-negative participants [Time frame: 5 years]
- the median time form stem cell transplantation to next treatment [Time frame: 5 years]
Eligibility criteria
Inclusion criteria
- Male or female;
- aged 18-75 years;
- Patients with newly diagnosed AL;
- Appropriate for autologous hematopoietic stem cell transplantation;
- Abnormal M protein or free light chain detected in serum and/or urine
- ECOG score 0-2 points;
- Subjects (or their legal representatives) must sign an informed consent document indicating understanding the purpose of and procedures required for the study and willingness to participate in the study.
Exclusion criteria
- Pregnant and breastfeeding women;
- Subjects suffering from multiple myeloma;
- hypersensitivity to any treatment drugs;
- Subjects have severe cardiovascular disease;
- Subjects have a serious physical disease and mental illnesses;
- Other conditions that researchers consider are not suitable for transplantation.
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Observational model
- Cohort
Study locations
China · 1 center
- National Clinical Research Center of Kidney Diseases, Jinling Hospital — Nanjing
Publications
- Zhang Y, Guo J, Chen W, Zhao L, Huang X. Risk factors, treatments and outcomes of patients with light chain amyloidosis who relapse after autologous stem cell transplantation. Bone Marrow Transplant. 2024 Mar;59(3):350-358. doi: 10.1038/s41409-023-02185-z. Epub 2023 Dec 26. PMID 38148411
Identifiers
NCT: NCT04210791 · NJCT-1901