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Trial details imported from ClinicalTrials.gov

For full trial details, please see the original record at https://clinicaltrials.gov/study/NCT02263508




Registration number
NCT02263508
Ethics application status
Date submitted
26/09/2014
Date registered
13/10/2014
Date last updated
14/11/2022

Titles & IDs
Public title
Pembrolizumab With Talimogene Laherparepvec or Placebo in Unresected Melanoma
Scientific title
A Phase 1b/3, Multicenter, Trial of Talimogene Laherparepvec in Combination With Pembrolizumab (MK-3475) for Treatment of Unresectable Stage IIIB to IVM1c Melanoma (MASTERKEY-265)
Secondary ID [1] 0 0
2014-000185-22
Secondary ID [2] 0 0
20110265
Universal Trial Number (UTN)
Trial acronym
MASTERKEY-265
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Melanoma 0 0
Condition category
Condition code
Cancer 0 0 0 0
Malignant melanoma

Intervention/exposure
Study type
Interventional
Description of intervention(s) / exposure
Treatment: Drugs - Talimogene Laherparepvec
Treatment: Drugs - Pembrolizumab
Treatment: Drugs - Placebo

Experimental: Phase 1b: Talimogene Laherparepvec + Pembrolizumab - Participants received talimogene laherparepvec at an initial dose of up to 4 mL 106 plaque-forming units (PFU)/mL by intralesional injection. Subsequent doses of talimogene laherparepvec at up to 4 mL of 108 PFU/mL began 3 weeks after the first dose and were administered every 2 weeks until disappearance of injectable lesions, complete response (CR), confirmed disease progression (PD) per modified Immune-related Response Criteria (irRC), intolerance of study treatment, 24 months from the date of the first dose of pembrolizumab, or end of study, whichever occurred first. Participants also received 200 mg pembrolizumab administered intravenously every 2 weeks starting at the time of the third dose of talimogene laherparepvec (week 6) until confirmed PD per modified irRC, treatment intolerance, 24 months from the first dose, or end of study, whichever occurred first.

Placebo comparator: Phase 3 : Placebo + Pembrolizumab - Participants received up to 4 mL placebo to talimogene laherparepvec by intralesional injection on day 1 of week 0. Subsequent doses of placebo (up to 4 mL) began 3 weeks after the first dose and were administered every 2 weeks until the fifth injection (week 9), and then synchronously with pembrolizumab thereafter every 3 weeks until disappearance of injectable lesions, complete response per modified Immune-related Response Criteria simulating Response Evaluation Criteria in Solid Tumors (irRC-RECIST) (iCR), confirmed iPD per modified irRC-RECIST, intolerance of study treatment, 24 months from the date of the first dose of placebo, or end of study, whichever occurred first. Participants also received 200 mg pembrolizumab administered intravenously every 3 weeks starting on day 1 of week 0, until confirmed iPD per modified irRC-RECIST, treatment intolerance, 24 months from the first dose, or end of study, whichever occurred first.

Experimental: Phase 3: Talimogene Laherparepvec + Pembrolizumab - Participants received talimogene laherparepvec at an initial dose of up to 4 mL 106 PFU/mL by intralesional injection on day 1. Subsequent doses of talimogene laherparepvec at 108 PFU/mL (up to 4 mL) began 3 weeks after the first dose and were administered every 2 weeks until the fifth injection of talimogene laherparepvec (week 9), and then synchronously with pembrolizumab thereafter every 3 weeks until disappearance of injectable lesions, iCR, confirmed iPD per modified irRC-RECIST, intolerance of study treatment, 24 months from the date of the first dose of talimogene laherparepvec, or end of study, whichever occurred first. Participants also received 200 mg pembrolizumab administered intravenously every 3 weeks starting on day 1 of week 0, until confirmed iPD per modified irRC-RECIST, treatment intolerance, 24 months from the first dose, or end of study, whichever occurred first.


Treatment: Drugs: Talimogene Laherparepvec
Talimogene laherparepvec administered by intratumoral injection

Treatment: Drugs: Pembrolizumab
Administered at a dose of 200 mg as an intravenous infusion over approximately 30 minutes.

Treatment: Drugs: Placebo
Administered by intratumoral injection
Intervention code [1] 0 0
Treatment: Drugs
Comparator / control treatment
Control group

Outcomes
Primary outcome [1] 0 0
Phase 1b: Number of Participants With Dose-limiting Toxicities (DLTs)
Timepoint [1] 0 0
The DLT evaluation period was 6 weeks from the initial administration of pembrolizumab (week 6 to 12).
Primary outcome [2] 0 0
Phase 3: Progression Free Survival (PFS) by Blinded Independent Central Review (BICR) Assessed Using Modified RECIST 1.1
Timepoint [2] 0 0
From randomization until the data-cut-off date of 02 March 2020; median (range) time on follow-up was 25.5 (0.6, 44.7) months in the Placebo + Pembrolizumab arm and 25.6 (0.3, 45.8) months in the Talimogene Laherparepvec + Pembrolizumab arm.
Primary outcome [3] 0 0
Phase 3: Overall Survival
Timepoint [3] 0 0
From randomization until the end of study; median (range) time on follow-up was 34.8 (0.6, 58.3) months in the Placebo + Pembrolizumab arm and 36.8 (0.3, 58.4) months in the Talimogene Laherparepvec + Pembrolizumab arm.
Secondary outcome [1] 0 0
Phase 1b: Objective Response Rate (ORR)
Timepoint [1] 0 0
Tumor assessments were performed at week 6 (prior to initiation of pembrolizumab), week 18, and every 12 weeks thereafter until confirmed PD or start of new anticancer treatment; median (range) time on follow-up was 58.6 (1.4, 61.6) months.
Secondary outcome [2] 0 0
Phase 1b: Best Overall Response (BOR)
Timepoint [2] 0 0
Tumor assessments were performed at week 6 (prior to initiation of pembrolizumab), week 18, and every 12 weeks thereafter until confirmed PD or start of new anticancer treatment; median (range) time on follow-up was 58.6 (1.4, 61.6) months.
Secondary outcome [3] 0 0
Phase 1b: Durable Response Rate (DRR)
Timepoint [3] 0 0
Tumor assessments were performed at week 6 (prior to initiation of pembrolizumab), week 18, and every 12 weeks thereafter until confirmed PD or start of new anticancer treatment; median (range) time on follow-up was 58.6 (1.4, 61.6) months.
Secondary outcome [4] 0 0
Phase 1b: Duration of Response (DOR)
Timepoint [4] 0 0
Tumor assessments were performed at week 6 (prior to initiation of pembrolizumab), week 18, and every 12 weeks thereafter until confirmed PD or start of new anticancer treatment; median (range) time on follow-up was 58.6 (1.4, 61.6) months.
Secondary outcome [5] 0 0
Phase 1b: Disease Control Rate (DCR)
Timepoint [5] 0 0
Tumor assessments were performed at week 6 (prior to initiation of pembrolizumab), week 18, and every 12 weeks thereafter until confirmed PD or start of new anticancer treatment; median (range) time on follow-up was 58.6 (1.4, 61.6) months.
Secondary outcome [6] 0 0
Phase 1b: Progression-free Survival (PFS)
Timepoint [6] 0 0
From first dose until the end of study; median (range) time on follow-up was 70.6 (1.4, 74.5) months.
Secondary outcome [7] 0 0
Phase 1b: Overall Survival (OS)
Timepoint [7] 0 0
From first dose until the end of study; median (range) time on follow-up was 70.6 (1.4, 74.5) months.
Secondary outcome [8] 0 0
Phase 3: Complete Response Rate Assessed Using Modified irRC-RECIST (iCRR)
Timepoint [8] 0 0
Tumor assessments were performed every 12 weeks after initiation of treatment until confirmed PD or start of new anticancer treatment; median (range) time on follow-up was 30.6 (0.6, 53.0) months and 31.4 (0.3, 52.5) months in each group, respectively.
Secondary outcome [9] 0 0
Phase 3: Progression Free Survival Assessed Using Modified irRC-RECIST (iPFS)
Timepoint [9] 0 0
From randomization until the data cut-off date of 29 September 2020; median time on follow-up was 30.6 (0.6, 53.0) months in the Placebo + Pembrolizumab arm and 31.4 (0.3, 52.5) months in the Talimogene Laherparepvec + Pembrolizumab arm.
Secondary outcome [10] 0 0
Phase 3: Overall Survival Excluding Stage IVM1c Participants
Timepoint [10] 0 0
From randomization until the end of study; median (range) time on follow-up was 34.8 (0.6, 58.3) months in the Placebo + Pembrolizumab arm and 36.8 (0.3, 58.4) months in the Talimogene Laherparepvec + Pembrolizumab arm.
Secondary outcome [11] 0 0
Phase 3: Objective Response Rate Assessed Using Modified RECIST 1.1
Timepoint [11] 0 0
Tumor assessments were performed every 12 weeks after initiation of treatment until confirmed PD or start of new anticancer treatment; median (range) time on follow-up was 30.6 (0.6, 53.0) months and 31.4 (0.3, 52.5) months in each group, respectively.
Secondary outcome [12] 0 0
Phase 3: Best Overall Response Assessed Using Modified RECIST 1.1
Timepoint [12] 0 0
Tumor assessments were performed every 12 weeks after initiation of treatment until confirmed PD or start of new anticancer treatment; median (range) time on follow-up was 30.6 (0.6, 53.0) months and 31.4 (0.3, 52.5) months in each group, respectively.
Secondary outcome [13] 0 0
Phase 3: Durable Response Rate (DRR) Assessed Using Modified RECIST 1.1
Timepoint [13] 0 0
Tumor assessments were performed every 12 weeks after initiation of treatment until confirmed PD or start of new anticancer treatment; median (range) time on follow-up was 30.6 (0.6, 53.0) months and 31.4 (0.3, 52.5) months in each group, respectively.
Secondary outcome [14] 0 0
Phase 3: Duration of Response (DOR) Assessed Using Modified RECIST 1.1
Timepoint [14] 0 0
From randomization until the data cut-off date of 29 September 2020; median time on follow-up was 30.6 (0.6, 53.0) months in the Placebo + Pembrolizumab arm and 31.4 (0.3, 52.5) months in the Talimogene Laherparepvec + Pembrolizumab arm.
Secondary outcome [15] 0 0
Phase 3: Disease Control Rate (DCR) Assessed Using RECIST 1.1
Timepoint [15] 0 0
Tumor assessments were performed every 12 weeks after initiation of treatment until confirmed PD or start of new anticancer treatment; median (range) time on follow-up was 30.6 (0.6, 53.0) months and 31.4 (0.3, 52.5) months in each group, respectively.
Secondary outcome [16] 0 0
Phase 3: Objective Response Rate Assessed Using Modified irRC-RECIST (iORR)
Timepoint [16] 0 0
Tumor assessments were performed every 12 weeks after initiation of treatment until confirmed PD or start of new anticancer treatment; median (range) time on follow-up was 30.6 (0.6, 53.0) months and 31.4 (0.3, 52.5) months in each group, respectively.
Secondary outcome [17] 0 0
Phase 3: Best Overall Response Assessed Using Modified irRC-RECIST
Timepoint [17] 0 0
Tumor assessments were performed every 12 weeks after initiation of treatment until confirmed PD or start of new anticancer treatment; median (range) time on follow-up was 30.6 (0.6, 53.0) months and 31.4 (0.3, 52.5) months in each group, respectively.
Secondary outcome [18] 0 0
Phase 3: Durable Response Rate Assessed Using Modified irRC-RECIST (iDRR)
Timepoint [18] 0 0
Tumor assessments were performed every 12 weeks after initiation of treatment until confirmed PD or start of new anticancer treatment; median (range) time on follow-up was 30.6 (0.6, 53.0) months and 31.4 (0.3, 52.5) months in each group, respectively.
Secondary outcome [19] 0 0
Phase 3: Duration of Response Assessed Using Modified irRC-RECIST (iDOR)
Timepoint [19] 0 0
From randomization until the data cut-off date of 29 September 2020; median time on follow-up was 30.6 (0.6, 53.0) months in the Placebo + Pembrolizumab arm and 31.4 (0.3, 52.5) months in the Talimogene Laherparepvec + Pembrolizumab arm.
Secondary outcome [20] 0 0
Phase 3: Disease Control Rate Assessed Using Modified irRC-RECIST (iDCR)
Timepoint [20] 0 0
Tumor assessments were performed every 12 weeks after initiation of treatment until confirmed PD or start of new anticancer treatment; median (range) time on follow-up was 30.6 (0.6, 53.0) months and 31.4 (0.3, 52.5) months in each group, respectively.
Secondary outcome [21] 0 0
Phase 3: Change From Baseline in European Organisation for Research and Treatment of Cancer Quality of Life Core Module (EORTC QLQ-C30) Global Health Status (GHS)/Quality of Life (QOL) Score
Timepoint [21] 0 0
Baseline and day 1 of weeks 3, 6, 9, 12, then every 6 weeks until end of study treatment; median (range) duration of treatment was 39.0 (0.1, 107.3) weeks in Placebo + Pembrolizumab and 54.1 (0.1, 109.6) weeks in Talimogene Laherparepvec + Pembrolizumab.
Secondary outcome [22] 0 0
Number of Participants With Treatment-emergent Adverse Events (TEAEs)
Timepoint [22] 0 0
From first dose to 30 days after last dose (90 days for SAEs); median (range) duration was 48 (5.1, 110.1) weeks in Phase 1b, 39 (0.1, 107.3) weeks in Placebo + Pembrolizumab and 56 (0.1, 109.6) weeks in Phase 3 Talimogene Laherparepvec + Pembrolizumab.

Eligibility
Key inclusion criteria
Key

* Age = 18 years with histologically confirmed diagnosis of melanoma and stage IIIB to IVM1c for whom surgery is not recommended.
* Subjects must have measurable disease and be a candidate for intralesional therapy administration into cutaneous, subcutaneous, or nodal lesions.
* Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.
* Adequate hematologic, hepatic, renal, and coagulation function.
* Subjects with serine/threonine protein kinase B-Raf V600 (BRAFV600) wild-type tumors must not have received any prior systemic anticancer treatment consisting of chemotherapy, immunotherapy, or targeted therapy given in a non-adjuvant setting for unresectable stage IIIB to IVM1c melanoma.
* Subjects with B-Raf V600 (BRAFV600) mutated tumors who have received prior BRAF inhibitor therapy either alone or in combination with mitogen-activated protein kinase kinase (MEK) inhibitor as their only prior systemic therapy are eligible.
* Subjects who received prior adjuvant therapy for melanoma will not be excluded (including, but not limited to, interferon, ipilimumab, limb infusion/perfusion, or use of investigational agents in the adjuvant setting) with the exception that prior adjuvant therapy with inhibitors of programmed cell death-1 (PD-1) or programmed cell death ligand 1 (PD-L1) is not allowed. However, if the subject received adjuvant therapy, the subject must have completed therapy at least 28 days prior to enrollment.
* Subjects must have a tumor sample that is adequate for PD-L1 assessment prior to randomization.

Key
Minimum age
18 Years
Maximum age
95 Years
Sex
Both males and females
Can healthy volunteers participate?
No
Key exclusion criteria
* Subjects must not have clinically active cerebral metastases.
* Subjects must not have primary uveal or mucosal melanoma, history or evidence of melanoma associated with immunodeficiency states or history of other malignancy within the past 3 years.
* Subjects may not have been previously treated with talimogene laherparepvec, any other oncolytic virus, pembrolizumab, or any other inhibitor of PD-1, PD-L1, or PD-L2.
* Subjects must not have history or evidence of symptomatic autoimmune pneumonitis, glomerulonephritis, vasculitis, other symptomatic autoimmune disease, documented history of autoimmune disease or syndrome requiring systemic treatment in the past 2 years (ie, with use of disease modifying agents, steroids or immunosuppressive agents) except vitiligo or resolved childhood asthma/atopy, or evidence of clinically significant immunosuppression.
* Subjects must not have active herpetic skin lesions or prior complications of herpetic infection and must not require intermittent or chronic treatment with an antiherpetic drug (eg, acyclovir), other than intermittent topical use.

Study design
Purpose of the study
Treatment
Allocation to intervention
Randomised controlled trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Blinded (masking used)
Who is / are masked / blinded?
The people receiving the treatment/s


The people analysing the results/data
Intervention assignment
Parallel
Other design features
Phase
Phase 3
Type of endpoint/s
Statistical methods / analysis

Recruitment
Recruitment status
Stopped early
Data analysis
Reason for early stopping/withdrawal
Other reasons
Date of first participant enrolment
Anticipated
Actual
8/12/2014
Date of last participant enrolment
Anticipated
Actual
Date of last data collection
Anticipated
Actual
11/03/2021
Sample size
Target
Accrual to date
Final
713
Recruitment in Australia
Recruitment state(s)
NSW,QLD,SA,VIC,WA
Recruitment hospital [1] 0 0
Research Site - North Sydney
Recruitment hospital [2] 0 0
Research Site - Waratah
Recruitment hospital [3] 0 0
Research Site - Wollongong
Recruitment hospital [4] 0 0
Research Site - Southport
Recruitment hospital [5] 0 0
Research Site - Woolloongabba
Recruitment hospital [6] 0 0
Research Site - Woodville South
Recruitment hospital [7] 0 0
Research Site - Geelong
Recruitment hospital [8] 0 0
Research Site - Heidelberg
Recruitment hospital [9] 0 0
Research Site - Melbourne
Recruitment hospital [10] 0 0
Research Site - Prahran
Recruitment hospital [11] 0 0
Research Site - Murdoch
Recruitment postcode(s) [1] 0 0
2060 - North Sydney
Recruitment postcode(s) [2] 0 0
2298 - Waratah
Recruitment postcode(s) [3] 0 0
2500 - Wollongong
Recruitment postcode(s) [4] 0 0
4215 - Southport
Recruitment postcode(s) [5] 0 0
4102 - Woolloongabba
Recruitment postcode(s) [6] 0 0
5011 - Woodville South
Recruitment postcode(s) [7] 0 0
3220 - Geelong
Recruitment postcode(s) [8] 0 0
3084 - Heidelberg
Recruitment postcode(s) [9] 0 0
3000 - Melbourne
Recruitment postcode(s) [10] 0 0
3181 - Prahran
Recruitment postcode(s) [11] 0 0
6150 - Murdoch
Recruitment outside Australia
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Alabama
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Austria
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Graz
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Portugal
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Almada
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Portugal
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Lisboa
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Portugal
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Porto
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Russian Federation
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Moscow
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Russian Federation
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Gauteng
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South Africa
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Pretoria
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País Vasco
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United Kingdom
State/province [107] 0 0
London
Country [108] 0 0
United Kingdom
State/province [108] 0 0
Manchester
Country [109] 0 0
United Kingdom
State/province [109] 0 0
Oxford
Country [110] 0 0
United Kingdom
State/province [110] 0 0
Preston
Country [111] 0 0
United Kingdom
State/province [111] 0 0
Southampton

Funding & Sponsors
Primary sponsor type
Commercial sector/industry
Name
Amgen
Address
Country
Other collaborator category [1] 0 0
Commercial sector/industry
Name [1] 0 0
Merck Sharp & Dohme LLC
Address [1] 0 0
Country [1] 0 0

Ethics approval
Ethics application status

Summary
Brief summary
The primary objectives of the Phase 1b part of the study are to evaluate the safety, as assessed by incidence of dose limiting toxicity (DLT), of talimogene laherparepvec in combination with pembrolizumab in adults with previously untreated, unresectable, stage IIIB to IVM1c melanoma.

The primary objective of Phase 3 are to evaluate the efficacy of talimogene laherparepvec with pembrolizumab versus placebo with pembrolizumab, as assessed by progression-free survival (PFS) (response evaluation by blinded independent central review using modified Response Evaluation Criteria in Solid Tumors \[RECIST\] 1.1) and overall survival (OS).
Trial website
https://clinicaltrials.gov/study/NCT02263508
Trial related presentations / publications
Ribas A, Dummer R, Puzanov I, VanderWalde A, Andtbacka RHI, Michielin O, Olszanski AJ, Malvehy J, Cebon J, Fernandez E, Kirkwood JM, Gajewski TF, Chen L, Gorski KS, Anderson AA, Diede SJ, Lassman ME, Gansert J, Hodi FS, Long GV. Oncolytic Virotherapy Promotes Intratumoral T Cell Infiltration and Improves Anti-PD-1 Immunotherapy. Cell. 2017 Sep 7;170(6):1109-1119.e10. doi: 10.1016/j.cell.2017.08.027. Erratum In: Cell. 2018 Aug 9;174(4):1031-1032. doi: 10.1016/j.cell.2018.07.035.
Dummer R, Hoeller C, Gruter IP, Michielin O. Combining talimogene laherparepvec with immunotherapies in melanoma and other solid tumors. Cancer Immunol Immunother. 2017 Jun;66(6):683-695. doi: 10.1007/s00262-017-1967-1. Epub 2017 Feb 25.
Chesney JA, Ribas A, Long GV, Kirkwood JM, Dummer R, Puzanov I, Hoeller C, Gajewski TF, Gutzmer R, Rutkowski P, Demidov L, Arenberger P, Shin SJ, Ferrucci PF, Haydon A, Hyngstrom J, van Thienen JV, Haferkamp S, Guilera JM, Rapoport BL, VanderWalde A, Diede SJ, Anderson JR, Treichel S, Chan EL, Bhatta S, Gansert J, Hodi FS, Gogas H. Randomized, Double-Blind, Placebo-Controlled, Global Phase III Trial of Talimogene Laherparepvec Combined With Pembrolizumab for Advanced Melanoma. J Clin Oncol. 2023 Jan 20;41(3):528-540. doi: 10.1200/JCO.22.00343. Epub 2022 Aug 23.
Watanabe D, Goshima F. Oncolytic Virotherapy by HSV. Adv Exp Med Biol. 2018;1045:63-84. doi: 10.1007/978-981-10-7230-7_4.
Public notes

Contacts
Principal investigator
Name 0 0
MD
Address 0 0
Amgen
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for public queries
Name 0 0
Address 0 0
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for scientific queries



Summary Results

For IPD and results data, please see https://clinicaltrials.gov/study/NCT02263508