Clinical Study of Safety and Tolerability of Melphalan Hydrochloride for R/R MM

Clinical Study of Safety and Tolerability of Melphalan Hydrochloride for Injection in the Treatment of Relapsed or Relapsed and Refractory Multiple Myeloma

Sponsors

Lead Sponsor: Peking University People's Hospital

Collaborator: CASI Pharmaceuticals, Inc.

Source Peking University People's Hospital
Brief Summary

This study is an investigator-initiated clinical study to evaluate the safety and tolerability of melphalan hydrochloride for injection in patients with relapsed or relapsed refractory multiple myeloma. Using the "3 + 3" dose escalation principle, 3-6 subjects per dose were enrolled, depending on the dose limiting toxicity (DLT) observed in the first cycle of chemotherapy for each subject. After completing the 21-day assessment of the first cycle of chemotherapy, if there was no DLT, the study started for the next dose group.

Detailed Description

The escalation method was as follows: 1 subject in each dose group was evaluated for safety by the investigator, and another 2 subjects were evaluated with the permission of the investigator: if none of them experienced DLT, they were escalated to the next dose group.If 1 subject experiences DLT, another 3 subjects will be enrolled in the same dose group.If DLT is not observed in 3 newly added subjects, the study of the next dose group can be started.Dose escalation was terminated if 2 or more DLTs were observed in 3 subjects enrolled in each dose group, or 1 or more DLTs were observed in 3 additional subjects per group.This dose was judged as "intolerable dose", and dose escalation was stopped at the same time. The previous dose group was used as MTD. If only 3 patients were enrolled in the previous dose group, 3 more patients were required (the continued dose escalation should be less than"intolerable dose"). DLT was continued to be observed to determine MTD. Dose escalation for the same subject was not permitted.If a subject dropped out during the DLT observation period due to non-DLT reasons or did not complete DLT observation according to the protocol, continued enrollment of subjects is required to meet the requirement of 3 or 6 subjects per dose. The administration method is as follows: Melphalan Hydrochloride for Injection 9 mg/m2, 18 mg/m2, 27 mg/m2 and 40 mg/m2 (if there is no DLT in this dose group when the dose is up to 40 mg/m2).The primary objective of this phase is to determine the optimal dose of melphalan hydrochloride for injection, up to 40 mg/m2.

Overall Status Recruiting
Start Date 2022-06-26
Completion Date 2023-12-31
Primary Completion Date 2023-01-31
Phase Phase 1
Study Type Interventional
Primary Outcome
Measure Time Frame
Dose limiting toxicity (DLT) one month
Secondary Outcome
Measure Time Frame
The overall response rate one month
TTP 12 months
Progression-Free Survival (PFS) 12 months
Overall Survival (OS) 12 months
Enrollment 24
Condition
Intervention

Intervention Type: Drug

Intervention Name: melphalan hydrochloride for injection

Description: Intravenous (iv) infusion for 20 minutes on Day 1 of a 21-day chemotherapy cycle

Arm Group Label: melphalan hydrochloride for injection

Eligibility

Criteria:

Inclusion Criteria: 1. Age ≥ 18 years old, male or female; 2. Relapsed or refractory multiple myeloma according to IMWG. There is no requirement for the number of previous treatment lines in this study 3. With any one of the following measurable indicators: serum protein electrophoresis (SPEP) ≥ 1 g/dL (10 g/L), if IgA, IgD, IgE or IgM multiple myeloma subjects, ≥ 0.5 g/dL (≥ 5 g/L); urine M protein ≥ 200 mg/24h; serum free light chain (FLC) ≥ 10 mg/dL and abnormal serum free light chain kappa/lambda ratio; 4. Life expectancy ≥ 6 months; 5. ECOG score ≤ 2; 6. ECG QT interval ≤ 470 ms; 7. Neutrophil ≥ 1.0*10^9/L, platelet ≥ 75*10^9/L (or 50 *10^9/L if plasma cell infiltration in bone marrow more than 50%); 8. Tbil ≤1.5 ULN,AST and ALT≤3.0 ULN (Gilbert syndrome except); 9. eGFR ≥ 45 ml/min or creatinine ≤ 2mg/dl 10. Understand the contents of this study and have signed the informed consent form. Exclusion Criteria: 1. primary amyloidosis, MGUS, or smoldering multiple myeloma or plasma cell leukemia (according to the World Health Organization criteria: peripheral blood ≥ 5%) or POEMS syndrome (polyneuropathy, organomegaly, endocrinopathy, monoclonal protein and skin) ; 2. primary refractory disease (i.e., no at least MR response to any prior therapy); 3. combined clinically significant comorbidities (investigator judged); 4. the presence of active infection; 5. history of other malignant tumors (except multiple myeloma) within 3 years before signing the informed consent; 6. Pregnant or lactating women; 7. radiotherapy or other anti-myeloma treatment within 14 days before signing the informed consent;

Gender:

All

Minimum Age:

18 Years

Maximum Age:

N/A

Healthy Volunteers:

No

Overall Official
Last Name Role Affiliation
Jin Lu Principal Investigator Peking University People's Hospital
Overall Contact

Last Name: Yang Liu

Phone: +86-13716926210

Email: [email protected]

Location
Facility: Status: Contact: Investigator: Peking University People's Hospital Yang Liu +8613716926210 [email protected] Jin Lu Principal Investigator
Location Countries

China

Verification Date

2022-06-01

Responsible Party

Type: Principal Investigator

Investigator Affiliation: Peking University People's Hospital

Investigator Full Name: JinLu

Investigator Title: Professor

Has Expanded Access No
Condition Browse
Number Of Arms 1
Arm Group

Label: melphalan hydrochloride for injection

Type: Experimental

Description: Drug Name: melphalan hydrochloride The dosage of different dosage groups were: 9 mg/m2; 18 mg/m2; 27 mg/m2; 40 mg/m2 Administration frequency: once for each subject

Patient Data No
Study Design Info

Allocation: N/A

Intervention Model: Single Group Assignment

Intervention Model Description: Four dose groups. Using the "3 + 3" dose escalation principle, 3-6 subjects per dose group, according to the dose limiting toxicity (DLT) observed in the first cycle of chemotherapy for each subject. After completing the 21-day assessment of the first cycle of chemotherapy, if there was no DLT, the study started for the next dose group.

Primary Purpose: Treatment

Masking: None (Open Label)

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