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Trial details imported from ClinicalTrials.gov

For full trial details, please see the original record at https://clinicaltrials.gov/ct2/show/NCT03836053




Registration number
NCT03836053
Ethics application status
Date submitted
5/02/2019
Date registered
11/02/2019
Date last updated
5/01/2024

Titles & IDs
Public title
Assessment of AMG 420 in Subjects With Relapsed and/or Refractory Multiple Myeloma
Scientific title
A Phase 1b Multicenter, Open-label, Expansion Study to Assess the Safety and Efficacy of AMG 420 as Monotherapy in Subjects With Relapsed and/or Refractory Multiple Myeloma
Secondary ID [1] 0 0
2018-002879-17
Secondary ID [2] 0 0
20160370
Universal Trial Number (UTN)
Trial acronym
AMG420
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Relapsed and/or Refractory Multiple Myeloma 0 0
Condition category
Condition code
Cancer 0 0 0 0
Other cancer types

Intervention/exposure
Study type
Interventional
Description of intervention(s) / exposure
Treatment: Drugs - AMG 420

Experimental: AMG 420 - Single Arm Design


Treatment: Drugs: AMG 420
28 day continuous Intravenous infusion of either 400 mcg/d or 600 mcg/d followed by 2 treatment free weeks
Intervention code [1] 0 0
Treatment: Drugs
Comparator / control treatment
Control group

Outcomes
Primary outcome [1] 0 0
Number of Participants With Dose-limiting Toxicities (DLTs)
Timepoint [1] 0 0
Day 1 to Week 4
Primary outcome [2] 0 0
Number of Participants Who Experienced a Treatment-emergent Adverse Event (TEAE)
Timepoint [2] 0 0
Up to approximately 3 years
Primary outcome [3] 0 0
Number of Participants Who Experienced a Treatment-related TEAE
Timepoint [3] 0 0
Up to approximately 3 years
Secondary outcome [1] 0 0
Overall Response Rate (ORR)
Timepoint [1] 0 0
Up to approximately 3 years
Secondary outcome [2] 0 0
Duration of Response (DOR)
Timepoint [2] 0 0
Up to approximately 3 years
Secondary outcome [3] 0 0
Percentage of Participants With Minimal Residual Disease (MRD) Negativity Response at CR
Timepoint [3] 0 0
Up to approximately 3 years
Secondary outcome [4] 0 0
Number of Participants With Minimal Residual Disease (MRD) Negativity Response at CR
Timepoint [4] 0 0
Up to approximately 3 years

Eligibility
Key inclusion criteria
Key

1. Subject has provided informed consent prior to initiation of any study specific
activities/procedures

2. Multiple myeloma meeting the following criteria:

3. Pathologically-documented diagnosis of multiple myeloma that is relapsed or is
refractory as defined by the following: Relapsed after 3 or more lines of prior
therapy that must include a proteasome inhibitors (PI), an immunomodulators (IMiD),
and a CD38-directed monoclonal antibody in any order during the course of treatment OR
refractory to a PI, IMiD, and CD38-directed monoclonal antibody.

-Measurable disease, defined by 1 or more of the following at time of screening: 1)
serum M-protein > 0.5 g/dL measured by serum protein electrophoresis (SPEP); 2)
urinary M-protein excretion > 200 mg/24 hours; 3) Involved serum free light chain
(sFLC ) measurement > 10 mg/dL, provided that the sFLC ratio is abnormal (<0.26 or
>1.65) as per IMWG response criteria

4. . ECOG performance status of less than or equal to 2

5. Life expectancy of at least 3 months per PI judgement at screening

6. Hematological function without transfusion support (within 7 days from screening
assessment) as follows:

- ANC = 1.0 x 10^9/L (without growth factor support)

- platelet count = 25 x 10^9/L (without transfusions)

- hemoglobin = 7.0 g/dL (transfusions permitted no later than 48 hours before
screening)

7. Renal function as follows: calculated or measured creatinine clearance =30 mL/min
using the Cockcroft-Gault equation or via 24-hour urine collection with plasma and
urine creatinine concentrations, respectively

8. Hepatic function as follows: AST and ALT < 3x upper limit of normal (ULN); TBIL <1.5 x
ULN (unless considered due to Gilbert's syndrome)

Key
Minimum age
18 Years
Maximum age
No limit
Sex
Both males and females
Can healthy volunteers participate?
No
Key exclusion criteria
1. Known central nervous system involvement by multiple myeloma

2. Evidence of primary or secondary plasma cell leukemia at the time of screening

3. Waldenstrom's macroglobulinemia

4. Unresolved toxicities from prior anticancer therapy, defined as not having resolved to
CTCAE version 5.0 grade 1 or to levels dictated in the eligibility criteria with the
exception of grade 2 peripheral neuropathy, alopecia, or toxicities from prior
anticancer therapy that are considered irreversible (defined as having been present
and stable for > 4 weeks) which may be allowed if they are not otherwise described in
the exclusion criteria and there is agreement to allow by the PI and Amgen medical
monitor

5. History of other malignancy within the past 3 years, with the following exceptions: 1.
malignancy treated with curative intent and with no known active disease present for =
1 year before enrollment and felt to be at low risk for recurrence by the treating
physician; 2. adequately-treated non-melanoma skin cancer or lentigo maligna without
evidence of disease; 3. adequately-treated cervical carcinoma in situ without evidence
of disease; 4. breast ductal carcinoma in situ with full surgical resection (ie,
negative margins) and without evidence of disease; 5. prostate cancer with a Gleason
score < 6 with undetectable PSA over 12 months; 6. treated medullary or papillary
thyroid cancer; 7. adequately-treated urothelial papillary noninvasive carcinoma or
carcinoma in situ; similar neoplastic conditions with an expectation of > 95%
five-year disease-free survival; 8. see exclusion criterion # 2 for exclusion of
subjects with evidence of primary or secondary plasma cell leukemia at the time of
screening

6. Known history of amyloidosis

7. Current or known history of autoimmune diseases requiring systemic treatment in past 5
years except vitiligo, resolved childhood asthma/atopy, or subjects with history of
hypothyroidism after completing treatment for autoimmune thyroid disease, stable on
hormone replacement therapy.

8. Clinically not-controlled chronic or ongoing infectious disease requiring treatment at
the time of study day 1 or within the 14 days before study day 1

9. Symptomatic peripheral sensory or motor neuropathy of grade =3

10. History or presence of clinically relevant central nervous system (CNS) pathology as
uncontrolled epilepsy or seizure disorder, paresis, aphasia, stroke, severe brain
injuries, dementia, Parkinson's disease, cerebellar disease, organic brain syndrome,
and psychosis

11. Active hepatitis B and C based on the following results: a) Positive for HepBsAg; b)
Negative HepBsAg and positive for hepatitis B core antibody; c) Positive Hepatitis C
virus antibody (HepCAb)

12. Known or suspected HIV infection or subjects who are HIV seropositive

13. Baseline ECG QTc > 470 msec (applying Fridericia correction)

14. Previously received an allogeneic stem cell transplant and the occurrence of 1 or more
of the following: a) received the transplant within 6 months prior to study day 1; b)
received immunosuppressive therapy within the last 3 months prior to study day 1; c)
any active acute graft versus host disease (GvHD), grade 2 to 4, according to the
Glucksberg criteria or active chronic GvHD requiring systemic treatment; d) any
systemic therapy against GvHD within 2 weeks prior to start of investigational product
treatment

15. Autologous stem cell transplantation < 90 days prior to study day 1

16. Treatment with systemic immune modulators including, but not limited to, nontopical
systemic corticosteroids (unless the dose is = 10 mg/day prednisone or equivalent),
cyclosporine, and tacrolimus within 2 weeks before study day 1

17. Last anticancer treatment < 2 weeks prior to study day 1

18. Last treatment with a therapeutic antibody less than 4 weeks prior to study day 1

19. Systemic radiation therapy within 28 days prior to study day 1. Focal radiotherapy
within 14 days prior to study day 1.

20. Major surgery defined as surgery requiring general anesthesia with endotracheal
intubation within 28 days prior to study day 1, unless discussed with and eligibility
approved by Amgen medical monitor

21. Prior treatment with any drug that specifically targets BCMA on tumor cells (eg, other
bi-specific antibody constructs, antibody drug conjugates, or CAR T-cells, except for
subjects who were previously treated with AMG 420 in this study and who are candidates
for second-course treatment

22. Treatment with medications known to cause QTc interval prolongation within the washout
periods described in Section 12.10 unless approved by the Amgen medical monitor

23. Currently receiving treatment in another investigational device or drug study, or less
than 30 days since ending treatment on another investigational device or drug
study(ies). Other investigational procedures while participating in this study are
excluded.

24. History or evidence of any other clinically-significant disorder, condition, or
disease (eg, symptomatic congestive heart failure, unstable angina pectoris,cardiac
arrhythmia requiring therapy at time of screening) with the exception of those
outlined above that, in the opinion of the investigator or Amgen medical monitor, if
consulted, would pose a risk to subject safety or interfere with the study evaluation,
procedures, or completion.

Study design
Purpose of the study
Treatment
Allocation to intervention
N/A
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Open (masking not used)
Who is / are masked / blinded?



Intervention assignment
Single group
Other design features
Phase
Phase 1
Type of endpoint/s
Statistical methods / analysis

Recruitment
Recruitment status
Terminated
Data analysis
Reason for early stopping/withdrawal
Other reasons
Date of first participant enrolment
Anticipated
Actual
4/03/2019
Date of last participant enrolment
Anticipated
Actual
Date of last data collection
Anticipated
Actual
21/04/2022
Sample size
Target
Accrual to date
Final
23
Recruitment in Australia
Recruitment state(s)
NSW,VIC
Recruitment hospital [1] 0 0
St Vincents Hospital Sydney - Darlinghurst
Recruitment hospital [2] 0 0
St Vincents Hospital Melbourne - Fitzroy, VIC
Recruitment postcode(s) [1] 0 0
2010 - Darlinghurst
Recruitment postcode(s) [2] 0 0
3065 - Fitzroy, VIC
Recruitment outside Australia
Country [1] 0 0
United States of America
State/province [1] 0 0
Illinois
Country [2] 0 0
United States of America
State/province [2] 0 0
Massachusetts
Country [3] 0 0
United States of America
State/province [3] 0 0
New York
Country [4] 0 0
United States of America
State/province [4] 0 0
North Carolina
Country [5] 0 0
Belgium
State/province [5] 0 0
Haine Saint Paul - La Louviere
Country [6] 0 0
Belgium
State/province [6] 0 0
Yvoir
Country [7] 0 0
Japan
State/province [7] 0 0
Okayama
Country [8] 0 0
Switzerland
State/province [8] 0 0
St. Gallen

Funding & Sponsors
Primary sponsor type
Commercial sector/Industry
Name
Amgen
Address
Country

Ethics approval
Ethics application status

Summary
Brief summary
To confirm the maximum tolerated dose (MTD) from the BI 836909 trial of 400 mcg/d, given as
28-day continuous intravenous infusion in patients with relapsed and/or refractory multiple
myeloma, to test the 600 mcg/d dose, given as a 28-day continuous iV infusion.
Trial website
https://clinicaltrials.gov/ct2/show/NCT03836053
Trial related presentations / publications
Public notes

Contacts
Principal investigator
Name 0 0
MD
Address 0 0
Amgen
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for public queries
Name 0 0
Address 0 0
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for scientific queries



Summary Results

For IPD and results data, please see https://clinicaltrials.gov/ct2/show/NCT03836053