A Study of Pembrolizumab in Patients With Malignant Peripheral Nerve Sheath Tumor (MPNST), Not Eligible for Curative Surgery
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|ClinicalTrials.gov Identifier: NCT02691026|
Recruitment Status : Terminated (Slow enrollment as a result of low incidence of MPNST and the COVID-19 pandemic.)
First Posted : February 24, 2016
Last Update Posted : June 23, 2021
This is phase II, single arm, open-label, interventional trial of pembrolizumab (MK-3475) in subjects with metastatic or locally advanced/unresectable or metastatic malignant peripheral nerve sheath tumour (MPNST).
The patients will be treated with pembrolizumab for up to 10 cycles.
Primary objective is to evaluate the percentage of patients with curatively unresectable MPNST who have achieved clinical response; complete response (CR), partial response (PR), or stable disease (SD) at 18 weeks as assessed by the Investigator, by using RECIST, v1.1.
|Condition or disease||Intervention/treatment||Phase|
|Malignant Peripheral Nerve Sheath Tumour (MPNST)||Drug: Pembrolizumab||Phase 2|
Patients with MPNST, who are not eligible for surgery of curative intent, will be considered for treatment with pembrolizumab. Patients will receive pembrolizumab treatment for up to 10 cycles. The patients must discontinue study treatment earlier (before 10 cycles of pembrolizumab) if they experience symptomatic deterioration attributed to disease progression, intolerable toxicity related to pembrolizumab, any medical condition that may jeopardize the patient's safety, use of other non-protocol anti-cancer therapy or pregnancy.
Patients who have received 10 cycles of pembrolizumab or discontinued study treatment of another reason than progression, will in the follow-up period be assessed for safety and treatment-related toxicity (for up to 90 days), progression and survival.
Patients who have achieved a clinical meaningful response after 10 cycles of pembrolizumab, defined as complete response (CR), partial response (PR), and stable disease (SD) assessed by the Investigator by using RECIST, v1.1, and have not experienced any clinically significant toxicity of study treatment, may be considered for reintroduction of pembrolizumab, if progression is detected after cycle 10.
Due to the low incidence of MPNST, the inclusion rate is expected to be low, thus a Simon's two-stage design is suggested (see Statistical Analysis Plans - Section 8.0).
Evaluation of efficacy and safety in stage one will be performed after the first 7 patient has been treated for 18 weeks: In case of no responders; the trial ends. If one or more responders, the trial will continue into stage two to a total number of 18 patients will be included.
|Study Type :||Interventional (Clinical Trial)|
|Actual Enrollment :||8 participants|
|Intervention Model:||Single Group Assignment|
|Masking:||None (Open Label)|
|Official Title:||A Phase II Study of Pembrolizumab in Patients With Malignant Peripheral Nerve Sheath Tumor (MPNST), Not Eligible for Curative Surgery|
|Actual Study Start Date :||June 2016|
|Actual Primary Completion Date :||December 2020|
|Actual Study Completion Date :||December 2020|
200 mg pembrolizumab, i.v. infusion every 3 weeks for up to 10 cycles
Other Name: Keytruda
- Percentage of patients with at least stable disease after 18 weeks of treatment assessed by RECIST 1.1. [ Time Frame: 18 weeks ]
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02691026
|Oslo university Hospital|
|Oslo, Norway, N-0424 Oslo|
|Principal Investigator:||Tormod K Guren, MD, PhD||Oslo University Hospital|