Clinical Trial Results:
IMMULAB – A phase II trial of immunotherapy with pembrolizumab in combination with local ablation for patients with early stage hepatocellular carcinoma (HCC)
Summary
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EudraCT number |
2018-001381-42 |
Trial protocol |
DE |
Global end of trial date |
30 Apr 2024
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Results information
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Results version number |
v1(current) |
This version publication date |
15 Jun 2025
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First version publication date |
15 Jun 2025
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Other versions |
Trial Information
Subject Disposition
Baseline Characteristics
End Points
Adverse Events
More Information
Subject Disposition
Baseline Characteristics
End Points
Adverse Events
More Information
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Trial identification
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Sponsor protocol code |
IMMULAB
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Additional study identifiers
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ISRCTN number |
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US NCT number |
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WHO universal trial number (UTN) |
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Other trial identifiers |
AIO STUDY NUMBER: AIO-HEP-0417/ass | ||
Sponsors
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Sponsor organisation name |
Frankfurter Institut für Klinische Krebsforschung IKF GmbH
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Sponsor organisation address |
Steinbacher Hohl 2-26, Frankfurt, Germany, 60488
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Public contact |
Frankfurter Institut für Klinische Krebsforschung IKF GmbH, Frankfurter Institut für Klinische Krebsforschung IKF GmbH, +49 69 5899 787 19, immulab@ikf-khnw.de
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Scientific contact |
Frankfurter Institut für Klinische Krebsforschung IKF GmbH, Frankfurter Institut für Klinische Krebsforschung IKF GmbH, +49 69 5899 787 19, immulab@ikf-khnw.de
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Paediatric regulatory details
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Is trial part of an agreed paediatric investigation plan (PIP) |
No
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Does article 45 of REGULATION (EC) No 1901/2006 apply to this trial? |
No
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Does article 46 of REGULATION (EC) No 1901/2006 apply to this trial? |
No
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Results analysis stage
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Analysis stage |
Final
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Date of interim/final analysis |
28 Feb 2025
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Is this the analysis of the primary completion data? |
Yes
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Primary completion date |
30 Apr 2024
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Global end of trial reached? |
Yes
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Global end of trial date |
30 Apr 2024
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Was the trial ended prematurely? |
No
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General information about the trial
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Main objective of the trial |
The main objective of this trial was evaluate the objective response rate (ORR) according to RECIST 1.1 criteria after two cycles of treatment with pembrolizumab before conducting radiofrequency ablation (RFA), microwave ablation (MWA), or brachytherapy with or without combination of TACE to assess if this will allow conversion / downstaging of borderline candidates for local ablation.
Secondary objectives were the evaluation of time to recurrence (TTR), recurrence-free survival (RFS) and overall survival (OS), as well as safety and tolerability of peri-interventional treatment with pembrolizumab followed by RFA, MWA, or brachytherapy with or without combination of TACE .
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Protection of trial subjects |
This clinical study was designed, implemented and reported in accordance with the protocol, the AMG (Arzneimittelgesetz), the ICH Harmonized Tripartite Guidelines for Good Clinical Practice, with
applicable local regulations (including European Directive 2001/20/EC), and with the ethical principles laid down in the Declaration of Helsinki. The trial was authorized/approved by the competent authority
(Paul-Ehrlich-Institut, PEI) and the competent ethics committee responsible for the trial (“federführende Ethikkommission”). Before recruitment into the clinical trial, each patient was informed that participation in the study is completely voluntary, and that he or she could withdraw their participation in the trial at any time without any declaration of reasons, which would not lead to any disadvantage for the respective patient. The eligibility of a new patient was determined by the local investigator during regular clinical visits. The examinations for the study and the inclusion of the patient were done after
detailed written and oral education about aims, methods, anticipated benefits and potential hazards of the study by use of the informed consent forms and after given written consent of the patient. Safety
was monitored continuously by careful monitoring of all adverse events (AEs) and serious adverse events (SAEs) reported.
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Background therapy |
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Evidence for comparator |
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Actual start date of recruitment |
09 May 2019
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Long term follow-up planned |
No
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Independent data monitoring committee (IDMC) involvement? |
Yes
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Population of trial subjects
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Number of subjects enrolled per country |
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Country: Number of subjects enrolled |
Germany: 30
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Worldwide total number of subjects |
30
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EEA total number of subjects |
30
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Number of subjects enrolled per age group |
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In utero |
0
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Preterm newborn - gestational age < 37 wk |
0
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Newborns (0-27 days) |
0
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Infants and toddlers (28 days-23 months) |
0
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Children (2-11 years) |
0
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Adolescents (12-17 years) |
0
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Adults (18-64 years) |
11
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From 65 to 84 years |
19
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85 years and over |
0
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Recruitment
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Recruitment details |
30 patients were planned to be recruited into this trial. The recruitment period was from Juli 2019 to November 2021 in 9 centers. 35 patients were screened, 30 were enrolled. | ||||||||||||||||||||
Pre-assignment
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Screening details |
Eligible patients had histol. confirmed HCC diagnosis (Child Pugh A) with indication for local ablation via RFA, MWA, brachytherapy with/without TACE, incl. high-risk patients (defined as having ≤ 5 tumor nodules with diameters ≤ 7cm [longest axis] each OR vascular infiltration), and with tumor tissue available for central pathological examination | ||||||||||||||||||||
Period 1
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Period 1 title |
overall trial (overall period)
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Is this the baseline period? |
Yes | ||||||||||||||||||||
Allocation method |
Not applicable
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Blinding used |
Not blinded | ||||||||||||||||||||
Arms
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Arm title
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Experimental Arm | ||||||||||||||||||||
Arm description |
In this single arm study, all patients received pembrolizumab (200 mg, IV, Q3W on day 1 of cycle 1 and 2) followed by local ablation via RFA, MWA, brachytherapy with/without TACE performed on day 1 of cycle 3 followed by pembrolizumab (200 mg IV, administered 2 days after local ablation, then Q3W for up to 12 months total treatment duration) | ||||||||||||||||||||
Arm type |
Experimental | ||||||||||||||||||||
Investigational medicinal product name |
Pembrolizumab
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Investigational medicinal product code |
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Other name |
Keytruda, L01FF02
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Pharmaceutical forms |
Concentrate for solution for injection
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Routes of administration |
Infusion , Intravenous use
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Dosage and administration details |
200 mg, IV, Q3W on day 1 of each cycle. Exception: at cycle 3, administered 2 days after local ablation
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Baseline characteristics reporting groups
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Reporting group title |
Experimental Arm
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Reporting group description |
In this single arm study, all patients received pembrolizumab (200 mg, IV, Q3W on day 1 of cycle 1 and 2) followed by local ablation via RFA, MWA, brachytherapy with/without TACE performed on day 1 of cycle 3 followed by pembrolizumab (200 mg IV, administered 2 days after local ablation, then Q3W for up to 12 months total treatment duration) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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End points reporting groups
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Reporting group title |
Experimental Arm
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Reporting group description |
In this single arm study, all patients received pembrolizumab (200 mg, IV, Q3W on day 1 of cycle 1 and 2) followed by local ablation via RFA, MWA, brachytherapy with/without TACE performed on day 1 of cycle 3 followed by pembrolizumab (200 mg IV, administered 2 days after local ablation, then Q3W for up to 12 months total treatment duration) |
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End point title |
Objective response rate (ORR) [1] | ||||||||||
End point description |
ORR, defined as achieving complete response (CR) or patial response (PR) according to RECIST 1.1 criteria (measured after two cycles of treatment, but before RFA, MWA, brachytherapy or combination of TACE with RFA, MWA or brachytherapy, compared to baseline)
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End point type |
Primary
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End point timeframe |
from baseline to 6-8 weeks after first treatment
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Notes [1] - No statistical analyses have been specified for this primary end point. It is expected there is at least one statistical analysis for each primary end point. Justification: Due to the explorative nature of this trial and the small number of patients only descriptive statistics was performed. |
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No statistical analyses for this end point |
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End point title |
Time to recurrence (TTR) | ||||||||
End point description |
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End point type |
Secondary
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End point timeframe |
from enrollment to end of study
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No statistical analyses for this end point |
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End point title |
Recurrence-free survival (RFS) | ||||||||
End point description |
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End point type |
Secondary
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End point timeframe |
from enrollment to end of study
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No statistical analyses for this end point |
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End point title |
Overall survival (OS) | ||||||||
End point description |
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End point type |
Secondary
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End point timeframe |
from enrollment to end of study
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No statistical analyses for this end point |
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End point title |
2-year OS rate | ||||||
End point description |
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End point type |
Secondary
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End point timeframe |
from enrollment to end of study
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No statistical analyses for this end point |
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End point title |
3-year OS rate | ||||||
End point description |
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End point type |
Secondary
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End point timeframe |
from enrollment to end of study
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No statistical analyses for this end point |
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End point title |
4-year OS rate | ||||||
End point description |
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End point type |
Secondary
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End point timeframe |
from enrollment to end of study
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No statistical analyses for this end point |
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Adverse events information
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Timeframe for reporting adverse events |
Patients were closely monitored for adverse events (AEs) from date of inclusion until at least 30 days after last dose of study treatment for AEs, and for at least 110 days for serious AEs, events of clinical interest, and pembrolizumab-associated AEs
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Assessment type |
Systematic | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary used for adverse event reporting
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Dictionary name |
CTCAE | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary version |
4.03
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Reporting groups
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Reporting group title |
Experimental Arm
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Reporting group description |
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Frequency threshold for reporting non-serious adverse events: 5% | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Substantial protocol amendments (globally) |
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Were there any global substantial amendments to the protocol? Yes | |||
Date |
Amendment |
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23 May 2019 |
Main changes of the study protocol:
• “Patients with child-pugh classification score ≤ 6, including high risk candidates for local ablation (defined as patient is having ≤ 5 tumor nodules with diameters ≤ 5cm [longest axis] each OR patient with vascular infiltration) will be included in the study”
• Inclusion criterion #4: “High risk patient, i.e. presence of ≤ 5 tumor nodules with diameters ≤ 5cm [longest axis] each OR vascular infiltration” – IEC: 03 Jul 2019, PEI: 13 Jun 2019
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12 Feb 2020 |
Main change: Expansion of local ablation options to include brachytherapy as well as the possibility of combining local ablation with TACE |
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Interruptions (globally) |
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Were there any global interruptions to the trial? No | |||
Limitations and caveats |
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Limitations of the trial such as small numbers of subjects analysed or technical problems leading to unreliable data. | |||
None reported |