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A Study of JNJ-79635322 in Participants With Relapsed or Refractory Multiple Myeloma or Previously Treated Amyloid Light-chain (AL) Amyloidosis

Phase 1, First-in-Human, Dose Escalation Study of JNJ-79635322, a Trispecific Antibody, in Participants With Relapsed or Refractory Multiple Myeloma or Previously Treated AL Amyloidosis

Status
Recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05652335
Enrollment
180
Registered
2022-12-15
Start date
2022-11-22
Completion date
2028-08-07
Last updated
2026-03-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Relapsed or Refractory Multiple Myeloma, Previously Treated Amyloid Light-chain (AL) Amyloidosis

Brief summary

The primary purpose of this study is to identify the recommended phase 2 dose (RP2D\[s\]) and schedule(s) to be safe for JNJ-79635322 in Part 1 (dose escalation), and to characterize the safety and tolerability of JNJ-79635322 at the RP2D(s) selected and in disease subgroups in Part 2 (dose expansion).

Interventions

JNJ-79635322 will be administered as SC injection.

Sponsors

Janssen Research & Development, LLC
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

For participants with relapsed or refractory multiple myeloma: * Have a documented initial diagnosis of multiple myeloma according to International Myeloma Working Group (IMWG) diagnostic criteria * Part 1: Have relapsed or refractory disease, have been treated with a proteasome inhibitor, immunomodulatory drug (IMiD) agent, and an anti-CD38-based therapy for the treatment of multiple myeloma (MM),and should have been treated with at least 3 prior lines of therapy, or are refractory to proteosome inhibitor, IMiD agent, and an anti-CD38-based therapy regardless of prior lines of therapy, Part 2: Have relapsed or refractory disease, have been treated with a PI, IMiD and an anti-CD38 based therapy * Must have an Eastern Cooperative Oncology Group (ECOG) status of 0 or 1 * Have measurable disease at screening as defined by at least 1 of the following: a) Serum M-protein level greater than or equal to (\>=) 0.5 grams per deciliter (g/dL); or b) Urine M-protein level \>=200 milligrams (mg)/24 hours; or c) Light chain multiple myeloma: Serum immunoglobulin (Ig) free light chain (FLC) \>=10 milligrams per deciliter (mg/dL) and abnormal serum Ig kappa lambda FLC ratio; d) For participants without measurable disease in the serum, urine, or involved FLC, presence of 1 or more focus of extramedullary disease (EMD) which meets the following criteria: extramedullary plasmacytoma not contiguous with a bone lesion, at least 1 lesion \>=2 centimeter \[cm\] (at its greatest dimension) diameter on whole body Positron Emission Tomography and Computed Tomography (PET-CT) Scans (or whole body magnetic resonance imaging \[MRI\] approved by sponsor), and not previously radiated (Part 2C participants are not required to have measurable disease) For participants with previously treated AL amyloidosis: * Initial histopathological diagnosis of amyloidosis * Participant who is not a candidate for available AL amyloidosis therapy with established clinical benefit and should have received at least 3 cycles of 1 prior line of therapy or a total of at least 2 cycles of 2 or more prior lines of therapy for AL amyloidosis * Measurable disease at screening defined by at least 1 of the following: serum involved free light chain (iFLC) \>=50 mg/L or difference between involved and uninvolved free light chains (dFLC) \>=50 mg/L, or serum m-protein \>= 0.5 g/dL * One or more organs impacted by systemic AL amyloidosis * Left ventricular ejection fraction (LVEF) \>=45%

Exclusion criteria

For participants with relapsed or refractory multiple myeloma: * Central Nervous System (CNS) involvement or clinical signs of meningeal involvement of multiple myeloma. If either is suspected, brain magnetic resonance imaging (MRI) and lumbar cytology are required * Active plasma cell leukemia, Waldenstrom's macroglobulinemia, POEMS syndrome (polyneuropathy, organomegaly, endocrinopathy, M-protein, and skin changes), or primary light chain amyloidosis * Received a cumulative dose of corticosteroids equivalent to greater than (\>) 140 mg of prednisone within the 14-day period before the start of study treatment administration * Prior antitumor therapy as follows, in the specified time frame prior to the first dose of study treatment: (proteasome inhibitor \[PI\] therapy or radiotherapy within 14 days, immunomodulatory drug (IMiD) agent therapy within 7 days, gene-modified adoptive cell therapy within 90 days \[not applicable for Part 2C participants\], or CD3-redirecting therapy within 21 days\[not applicable for Part 2B or 2C participants\]) * Prior allogeneic transplant within 6 months before the start of study treatment administration or autologous transplant within 12 weeks before the start of study treatment administration * Live, attenuated vaccine within 4 weeks before the first dose of study treatment * Non-hematologic toxicity from prior anticancer therapy that has not resolved to baseline levels or to Grade less than or equal to (\<=) 1 (except alopecia, tissue post-RT fibrosis \[any grade\] or peripheral neuropathy to Grade \<=3) * The following medical conditions: pulmonary compromise requiring supplemental oxygen use to maintain adequate oxygenation, human immunodeficiency (HIV) infection, active hepatitis B or C infection, stroke or seizure within 6 months prior to first dose of study treatment, autoimmune disease, serious active viral or bacterial infection, uncontrolled systemic fungal infection, cardiac conditions (myocardial infarction \<=6 months prior to enrollment, New York Heart Association stage III or IV congestive heart failure, et cetera) * Part 2C: have progressive disease or refractory disease per IMWG after CAR-T administration For participants with previously treated AL amyloidosis: * CNS involvement or clinical signs of meningeal involvement of AL amyloidosis. If either is suspected, whole brain MRI and lumbar cytology are required * Any form of non-AL amyloidosis, including but not limited to transthyretin (ATTR) amyloidosis * Active plasma cell leukemia, Waldenstrom's macroglobulinemia, or POEMS syndrome * Pulmonary compromise requiring supplemental oxygen use * Any serious medical conditions such as: active viral, bacterial, fungal infection; active autoimmune disease; HIV infection, active hepatitis B or C infection, stroke or seizure within 6 months prior to first dose of study treatment, significant cardiovascular conditions * Previous or current diagnosis of symptomatic multiple myeloma * Macroglossia that impairs swallowing difficulty * Received a cumulative dose of corticosteroids equivalent to \> 140 mg of prednisone within the 14-day period before the start of study treatment administration * Prior antitumor therapy within 21 days prior to the first dose of study treatment (PI therapy or radiotherapy within 14 days, IMiD agent therapy within 7 days, gene-modified adoptive cell therapy within 90 days, or CD3-redirecting therapy within 21 days) * Prior allogeneic transplant within 6 months before the start of study treatment administration or autologous transplant within 12 weeks before the start of study treatment administration * Live, attenuated vaccine within 4 weeks before the first dose of study treatment * Non-hematologic toxicity from prior anticancer therapy that has not resolved to baseline levels or to \<=1 (except alopecia, tissue post-RT fibrosis \[any grade\] or peripheral neuropathy to Grade \<=3)

Design outcomes

Primary

MeasureTime frameDescription
Part 1: Number of Participants with Dose-limiting Toxicity (DLT)Up to 2 years 5 monthsDLTs are specific adverse events and are defined as any of the following: high grade non-hematologic toxicity, or hematologic toxicity.
Parts 1 and 2: Number of Participants with Adverse Events (AEs) by SeverityUp to 2 years 5 monthsAn adverse event is any untoward medical occurrence in a clinical study participant that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. Severity will be graded according to the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI-CTCAE) version 5.0. Severity scale ranges from grade 1 (mild) to grade 5 (death). Grade 1= mild, Grade 2= moderate, Grade 3= severe, Grade 4= life-threatening and Grade 5= death related to adverse event.
Part 2: Number of Participants with Abnormalities in Laboratory ValuesUp to 2 Years 5 monthsNumber of participants with abnormalities in laboratory values (hematology and chemistry) will be reported.

Secondary

MeasureTime frameDescription
Serum Concentration of JNJ-79635322Up to 2 Years 5 monthsSerum samples will be analyzed to determine concentrations of JNJ-79635322.
Number of Participants with Presence of Anti-Drug Antibodies to JNJ-79635322Up to 2 Years 5 monthsNumber of participants with presence of anti-drug antibodies to JNJ-79635322 will be reported.
Preliminary Anticancer Activity of JNJ-79635322 as Defined by International Myeloma Working Group (IMWG) 2016 Response CriteriaUp to 2 Years 5 monthsPreliminary anticancer activity of JNJ-79635322 will be assessed according to the International Myeloma Working Group (IMWG) 2016 response criteria.
Time to Response (TTR) as Defined by IMWG 2016 Response CriteriaUp to 2 Years 5 monthsTTR is defined as the time between date of first dose of study drug and the first efficacy evaluation at which the participant has met all criteria for partial response (PR) or better as defined by IMWG 2016 response criteria.
Duration of Response (DOR) as Defined by IMWG 2016 Response CriteriaUp to 2 Years 5 monthsDOR is defined as time from date of initial documentation of a response (PR or better) to date of first documented evidence of progressive disease (PD), per IMWG 2016 response criteria, or death due to any cause, whichever occurs first.
Part 2: Time to Response (TTR) as Defined by International Amyloidosis Consensus CriteriaUp to 2 Years 5 monthsTTR is defined as the time between date of first dose of study drug and the first efficacy evaluation at which the participant has met all criteria for PR or better as defined by International Amyloidosis Consensus Criteria.
Part 2: Duration of Response (DOR) as Defined by International Amyloidosis Consensus CriteriaUp to 2 Years 5 monthsDOR is defined as time from date of initial documentation of a response (PR or better) to date of first documented evidence of progressive disease (PD), per International Amyloidosis Consensus Criteria or death due to any cause, whichever occurs first.
Part 2: Preliminary Anticancer Activity of JNJ-79635322 as Defined by International Amyloidosis Consensus CriteriaUp to 2 Years 5 monthsPreliminary anticancer activity of JNJ-79635322 will be assessed according to the International Amyloidosis Consensus Criteria.

Countries

Belgium, France, Japan, Netherlands, Spain, United Kingdom, United States

Contacts

CONTACTStudy Contact
Participate-In-This-Study1@its.jnj.com844-434-4210
STUDY_DIRECTORJanssen Research & Development, LLC Clinical Trial

Janssen Research & Development, LLC

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 14, 2026