A Phase 1b, Open-Label, Dose Escalation Study to Evaluate the Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of MK-0482 as Monotherapy and in Combination With Pembrolizumab in Participants With Advanced/Metastatic Solid Tumors.

  • STATUS
    Recruiting
  • End date
    Feb 19, 2025
  • participants needed
    230
  • sponsor
    Merck Sharp & Dohme LLC
Updated on 21 October 2022
paclitaxel
lymphoma
measurable disease
carcinoma
breast cancer
growth factor
x-rays
pemetrexed
carboplatin
pembrolizumab
ROS1
EGFR
primary cancer
adenocarcinoma
targeted therapy
solid neoplasm
sarcoma
immunostimulants

Summary

This is a 2 part study. Part 1 is a dose escalation to determine the safety and tolerability and to establish a preliminary recommended Phase 2 dose (RP2D) dose of MK-0482 administered as monotherapy and in combination with pembrolizumab (MK-3475) in participants with advanced solid tumors for which there is no available therapy which may convey clinical benefit. Part 2 is expansion cohort to determine safety and tolerability of MK-0482 in combination with pembrolizumab with and without chemotherapy in participants with advanced tumor specific cohorts.

Details
Condition Neoplasms
Treatment carboplatin, Gemcitabine, Paclitaxel, Pembrolizumab, Pemetrexed, Nab-paclitaxel, MK-0482
Clinical Study IdentifierNCT03918278
SponsorMerck Sharp & Dohme LLC
Last Modified on21 October 2022

Eligibility

Yes No Not Sure

Inclusion Criteria

Part 1 only: Has histologically-or cytologically-confirmed advanced/metastatic solid tumors and have received, been intolerant to, or been ineligible for, all treatments known to confer clinical benefit
Has measurable disease by Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) or Response Assessment in Neuro-Oncology (RANO) for Cohort B as assessed by the local site investigator/radiology
Has provided an evaluable archival or newly obtained tumor tissue sample
Part 1, Arm 1 only: Has ≥1 discrete malignant lesions that are amenable to biopsy
Has an Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 1
Male participants are eligible to participate if they agree to the following during the intervention period and for at least 95 days after the last dose of chemotherapy: refrain from donating sperm plus either be abstinent from heterosexual intercourse as their preferred and usual lifestyle and agree to remain abstinent or agree to use contraception unless confirmed to be azoospermic
A female participant is eligible to participate if she is not pregnant or breastfeeding, and ≥1 of the following conditions applies: is not a woman of childbearing potential (WOCBP) OR is using a contraceptive method that is highly effective or is abstinent from heterosexual intercourse as their preferred and usual lifestyle during the intervention period and for at least 180 days after the last dose of chemotherapy or 120 days after the last dose of MK-0482 or pembrolizumab, whichever occurs last
Has a negative highly sensitive pregnancy test within 72 hours before the first dose of study treatment
Part 2 Cohort A, C, and E only: WOCBP must also agree not to donate to others or freeze/store for her own use for the purpose of reproduction during and for at least 180 days after the last dose of chemotherapy
Human immunodeficiency virus (HIV) infected participants must have well controlled HIV on anti-retroviral therapy (ART)
Has adequate organ function
Part 2 Cohort A only: 1) Has histologically confirmed locally recurrent inoperable or metastatic triple negative breast cancer (TNBC) 2) Has received no prior systemic therapy for metastatic TNBC 3) Has tumor programmed death ligand 1 (PD-L1) combined positive score (CPS) ≥1
Part 2 Cohort B only: 1) Has confirmed diagnosis of GBM (isocitrate dehydrogenase (IDH) wildtype per 2021 World Health Organization (WHO) classification of tumors of central nervous system) 2) Has received a standard first-line treatment for GBM including surgery and radiation therapy with or without chemotherapy and evidence of disease recurrence or pression by magnetic resonance imaging (MRI) 3) Has time elapsed from prior treatment as per protocol 4) Has Karnofsky performance status (KPS) ≥ 80 within 7 days before start of study treatment 5) Is neurologically stable 6) Has known status of O6-methylguanine-DNA methyltransferase (MGMT) methylation and isocitrate dehydrogenase (IDH)
Part 2 Cohort C only: Has histologically confirmed diagnosis of metastatic PDAC and has received no prior systemic therapy for metastatic pancreatic ductal adenocarcinoma (PDAC) including chemotherapy, biological or targeted therapy and has albumin ≥3.0 g/dL
Part 2 Cohort D only: Has histologically confirmed diagnosis of locally advanced or metastatic soft tissue sarcoma (STS) and has received and progressed after one prior line of systemic treatment for advanced STS. Prior treatment in the (neo)adjuvant setting is not counted as a line of treatment for advanced disease
Part 2 Cohort E only: Has histologically confirmed diagnosis of Stage IV or recurrent non-operable non-squamous non-small cell lung carcinoma (NSCLC) , has confirmation that epidermal growth factor receptor (EGFR), anaplastic lymphoma kinase (ALK), or c-ros oncogene 1 (ROS1) directed therapy is not indicated as primary therapy and has not received prior systemic treatment for metastatic NSCLC

Exclusion Criteria

Has known active central nervous system metastases and/or carcinomatous meningitis
Has had a severe hypersensitivity reaction to treatment with a monoclonal antibody (mAb) and/or any component of pembrolizumab (MK-3475) or MK-0482
Has received any prior immunotherapy and was discontinued from that treatment due to a Grade 3 or higher immune-related adverse event (irAE)
Has an active infection requiring systemic therapy
Has a history of interstitial lung disease
Has a history of (non-infectious) pneumonitis that required steroids or has current pneumonitis
Has an active autoimmune disease that has required systemic treatment in the past 2 years
Has a history of a second malignancy, unless potentially curative treatment has been completed with no evidence of malignancy for 2 years
Has a known additional malignancy that is progressing or has required active treatment within the past 2 years; with the exception of basal cell carcinoma of the skin, squamous cell carcinoma of the skin, superficial bladder cancer, or carcinoma in situ (eg, breast carcinoma, cervical cancer in situ) that have undergone potentially curative therapy
HIV-infected participants with a history of Kaposi's sarcoma and/or Multicentric Castleman's Disease
Has known Hepatitis B or C infection
Has a diagnosis of immunodeficiency or is receiving chronic systemic steroid therapy or any other form of immunosuppressive therapy within 7 days prior the first dose of study treatment
Has had an allogeneic tissue/solid organ transplant in the last 5 years or has evidence of graft-versus-host disease
Has received prior systemic anticancer therapy, definitive radiotherapy, including investigational agents within 4 weeks (2 weeks for palliative radiation) before the first dose of study treatment
Has received a live or live-attenuated vaccine within 30 days before the first dose of study treatment
Has received an investigational agent or has used an investigational device 4 weeks prior to start of study intervention
Part 2 only: Has received prior therapy with an anti-PD-1, anti-PD-L1, or anti-PD-L2 agent or prior therapy targeting other immune-regulatory receptors or mechanisms
Part 2 Cohort A only: 1) Has a history of class II-IV congestive heart failure or myocardial infarction within 6 months of start of study treatment 2) Has a known sensitivity to any component of paclitaxel or any of its excipients and 3) Is receiving any medication prohibited in combination with paclitaxel unless medication was stopped within 7 days before the start of study treatment
Part 2 Cohort B only: 1) Has carcinomatous meningitis 2) Has recurrent tumor 3) Has tumor primarily localized to the brainstem or spinal cord 4) Has presence of multifocal tumor, diffuse leptomeningeal or extracranial disease 5) Has evidence of intratumoral or peritumoral hemorrhage on baseline MRI scan except Grade ≤ Grade I and either post-operative OR stable on at least 2 consecutive MRI scans 6) Requires treatment with moderate or high dose systemic corticosteroids as defined in protocol for at least 3 consecutive days within 2 weeks of start of study treatment and 7) Optune® TTFields within 2 weeks of start of study treatment
Part 2 Cohort C only: 1) Has a history of class II-IV congestive heart failure, cerebral vascular event, unstable angina, or myocardial infarction within 6 months of the start of study treatment 2) Has symptomatic ascites, and 3) Has a known hypersensitivity to nab-paclitaxel or gemcitabine, or any of their excipients
Part 2 Cohort E only: 1) Has a diagnosis of small cell lung cancer 2) Has symptomatic ascites or pleural effusion 3)Is currently receiving either strong or moderate inhibitors and/or inducers of CYP3A4 or CYP2C8 that cannot be discontinued for the duration of the study 4) Is unable to interrupt aspirin or other NSAIDs, other than aspirin dose ≤1.3 g/day for a 5-day period 5) Is unable or unwilling to take folic acid or vitamin B12 supplementation, and 6) has a known hypersensitivity to carboplatin or pemetrexed, or any of their excipients
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