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Terminated Phase 2 Interventional Results available

Anti-Mesothelin Immunotoxin LMB-100 Followed by Pembrolizumab in Malignant Mesothelioma

ClinicalTrials.gov ID: NCT03644550

Public ClinicalTrials.gov record NCT03644550. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 17, 2026, 4:06 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

Phase II Study of the Anti-Mesothelin Immunotoxin LMB-100 Followed by Pembrolizumab in Malignant Mesothelioma

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

Background: Treatment outcomes for people with pleural or peritoneal mesothelioma are often poor. The drug LMB-100 can attack and kill cancer cells. The drug pembrolizumab helps the immune system fight cancer. Together, these drugs might help people with these cancers. Objective: To test if pembrolizumab given after LMB-100 shrinks tumors in people with pleural or peritoneal mesothelioma. Eligibility: People ages 18 and older with pleural or peritoneal mesothelioma that has not responded to platinum-based therapy Design: Participants will be screened with: Tumor sample. Participants will have a biopsy if one is needed. Medical history Physical exam Blood, heart, and urine tests X-rays and scans: Participants will lie on a table. A machine will take pictures of the body. Participants will receive LMB-100 by intravenous (IV) on days 1, 3, and 5 of two 21-day cycles. They will be observed for up to 2 hours after each infusion. They will receive drugs like Benadryl, Tylenol, and Zantac to help with side effects. Starting with the 3rd cycle, participants will receive pembrolizumab by IV on day 1 of each 21-day cycle for up to 2 years. Participants will have blood and urine tests, heart tests, and chest x-rays at least once per cycle. They will have scans every 6 weeks. Participants may opt to provide tumor biopsies before starting the first cycle, after 2 cycles of LMB-100, and after 2 cycles of pembrolizumab. Participants will a follow-up visit 4-6 weeks after their last drug dose of the study drug. This includes blood and heart tests and scans. They may then have scans every 6 weeks. Participants will be contacted once a year for follow-up.

Study identification

NCT ID
NCT03644550
Recruitment status
Terminated
Study type
Interventional
Phase
Phase 2
Enrollment
18 participants

Conditions and interventions

Conditions

Interventions

Drug · Biological

Eligibility (public fields only)

Age range
18 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Dec 3, 2018
Primary completion
Aug 4, 2020
Completion
Nov 1, 2020
Last update posted
Dec 1, 2021

2018 – 2020

United States locations

U.S. sites
1
U.S. states
1
U.S. cities
1
Facility City State ZIP Site status
National Institutes of Health Clinical Center Bethesda Maryland 20892

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT03644550, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Dec 1, 2021 · Synced Sep 17, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT03644550 live on ClinicalTrials.gov.

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