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Study of AMG 650 in Adult Participants With Advanced Solid Tumors

A Phase 1, Multicenter, Open-label, Dose-Exploration and Dose-Expansion Study Evaluating the Safety, Tolerability, Pharmacokinetics, and Efficacy of AMG 650 in Subjects With Advanced Solid Tumors

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04293094
Enrollment
66
Registered
2020-03-03
Start date
2020-03-11
Completion date
2023-02-15
Last updated
2023-08-24

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

Conditions

Advanced Solid Tumors

Keywords

AMG 650, Locally-advanced/metastatic solid tumors, p53 mutation, Serous like endometrial cancers, Triple negative breast cancer (TNBC), High grade serous ovarian cancer (HGSOC)

Brief summary

To evaluate the safety and tolerability of AMG 650 in adult participants and to determine the maximum tolerated dose (MTD) and/or recommended phase 2 dose (RP2D).

Interventions

DRUGAMG 650

AMG 650 administered orally as a tablet.

Sponsors

Amgen
CollaboratorINDUSTRY
Volastra Therapeutics, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 99 Years
Healthy volunteers
No

Inclusion criteria

* Male and female ≥ 18 years old * Triple Negative Breast Cancer participants only: Participant must have histologically or cytologically confirmed metastatic or locally recurrent estrogen receptor (ER)-negative (\<1% by immunohistochemistry \[IHC\]), progesterone receptor (PR)-negative (\<1% IHC) and human epidermal growth factor receptor 2 (Her2)-negative (either fluorescent in situ hybridisation \[FISH\] negative, 0 or 1+ by IHC, or IHC2+ and FISH negative per ASCO/CAP definition) breast cancer. Participant must be relapsed/refractory to at least one line of systemic chemotherapy in the metastatic setting (excluding neoadjuvant or adjuvant chemotherapies) or intolerant of existing therapy(ies) known to provide clinical benefit or have no other available treatment options. Prior exposure to an immune checkpoint inhibitor is allowed. * Platinum-Resistant High Grade Serous Ovarian Cancer, primary peritoneal cancer and/or fallopian-tube cancer participants only: Participant must have histologically or cytologically confirmed diagnosis of metastatic or unresectable high grade serous ovarian cancer, with platinum-resistance defined as progression during or within 6 months of a platinum-containing regimen, with no other treatment option available. Prior exposure to platinum-resistant recurrence therapy is allowed. * Serous Endometrial Cancer participants only (Dose Exploration only): Participant must have histologically or cytologically confirmed diagnosis of metastatic or recurrent serous endometrial cancer, and be relapsed/refractory to at least one line of systemic therapy in the metastatic/recurrent setting or intolerant of existing therapy(ies) known to provide clinical benefit for their condition. * Participants with advanced or metastatic solid tumor with TP53MUT (Dose Exploration only, as assessed by local testing) that is unresectable and relapsed/refractory to at least one line of systemic chemotherapy or intolerant. * TNBC participants only (Dose Expansion): Progressed on no more than 3 prior lines of systemic therapy for locally advanced or metastatic disease (not including adjuvant or neo-adjuvant). Systemic therapy with poly ADP ribose polymerase (PARP) inhibitor will be counted as one line of therapy. * HGSOC participants only (Dose Expansion): Progressed on no more than 5 prior lines of systemic therapy for locally advanced or metastatic disease (not including adjuvant or neo-adjuvant). Systemic therapy with (PARP) inhibitor will be counted as one line of therapy. Induction followed by maintenance will be counted as one line of therapy.

Exclusion criteria

* Untreated or symptomatic brain metastases and leptomeningeal disease (exception: benign asymptomatic tumors are permitted). * Current primary CNS tumor, hematological malignancies or lymphoma. * Uncontrolled pleural effusions(s), pericardial effusion, or ascites. * Gastrointestinal (GI) tract disease causing the inability to take oral medication.

Design outcomes

Primary

MeasureTime frame
Number of Participants with Dose Limiting Toxicities (DLTs)Up to 12 months
Number of Participants with Treatment-emergent Adverse Events (TEAEs)Up to 24 months
Number of Participants with Serious Adverse Events (SAEs)Up to 24 months
Number of Participants with Treatment-related Adverse EventsUp to 24 months
Number of Participants Who Experience a Clinically Significant Change from Baseline in Vital Sign MeasurementUp to 24 months
Number of Participants Who Experience a Clinically Significant Change from Baseline in Electrocardiogram (ECGs) MeasurementUp to 24 months
Number of Participants Who Experience a Clinically Significant Change from Baseline in Clinical Laboratory TestsUp to 24 months

Secondary

MeasureTime frame
Objective Response Rate (ORR)Up to 24 months
Time to Maximum Plasma Concentration (Tmax) of AMG 650Up to 24 months
Progression-free Survival (PFS)Up to 24 months
Duration of Response (DOR)Up to 24 months
Area Under the Plasma Concentration-time Curve (AUC) Over the Dosing Interval for AMG 650Up to 24 months
Clinical Benefit Rate (CBR)Up to 24 months
Time to Response (TTR)Up to 24 months
Time to Progression (TTP)Up to 24 months
Overall Survival (OS)Up to 24 months
Maximum Plasma Concentration (Cmax) of AMG 650Up to 24 months

Countries

Australia, Belgium, Canada, Italy, Japan, Spain, United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 15, 2026