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Safety Study of MM-121 in Combination With Multiple Anticancer Therapies in Patients With Advanced Solid Tumors

Registration Number
NCT01447225
Lead Sponsor
Merrimack Pharmaceuticals
Brief Summary

To evaluate the safety and tolerability of escalating doses of MM-121 + certain anticancer therapies

Detailed Description

This study was a Phase 1 and pharmacologic dose-escalation trial of MM-121 in combination with certain anticancer therapies. The dose-escalation portion of the study employed a 3 + 3 design to assess the safety, tolerability, and pharmacokinetics of MM-121 administered weekly in combination with certain anticancer therapies in patients with advanced/recurrent cancer. Doses of MM-121 and/or the anticancer therapy were escalated until either the MTD is identified or the combination was shown to be tolerable at the highest planned doses.

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
43
Inclusion Criteria
  • Advanced-stage solid tumors
  • ≥ 18 years of age
  • Adequate liver and kidney function
Exclusion Criteria
  • Any other active malignancy
  • No known HIV, Hepatitis C or B

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
MM-121 plus CabazitaxelMM-121escalating doses of MM-121 and cabazitaxel on Day 1 of every 3 week cycle
MM-121 plus CarboplatinMM-121carboplatin at AUC 6 with escalating doses of MM-121 on Day 1 of every 3 week cycle
MM-121 plus PemetrexedMM-121pemetrexed at 500 mg/m2 with escalating doses of MM-121 on Day 1 of every 3 week cycle
MM-121 plus GemcitabineMM-121escalating doses of MM-121 and gemcitabine on Day 1 and Day 8 of every 3 week cycle
MM-121 plus CarboplatinCarboplatincarboplatin at AUC 6 with escalating doses of MM-121 on Day 1 of every 3 week cycle
MM-121 plus PemetrexedPemetrexedpemetrexed at 500 mg/m2 with escalating doses of MM-121 on Day 1 of every 3 week cycle
MM-121 plus GemcitabineGemcitabineescalating doses of MM-121 and gemcitabine on Day 1 and Day 8 of every 3 week cycle
MM-121 plus CabazitaxelCabazitaxelescalating doses of MM-121 and cabazitaxel on Day 1 of every 3 week cycle
Primary Outcome Measures
NameTimeMethod
To Determine the Maximum Tolerated Dose (MTD) of MM-121 in Combination With Anticancer Therapies: PemetrexedFrom date of first dose to 30 days after termination, the longest 88.1 weeks

Using a 3+3 dose escalation model, the maximum tolerated dose of each therapy combination was determined by assessing dose-limiting toxicities in each cohort. If 3 patients were treated and passed the observation window, escalation to the next cohort was initiated. If a DLT was reported, 3-4 additional patients were enrolled and observed. If a DLT was observed in expanded cohort, this dose was considered to be the maximum tolerated dose. The maximum tolerated dose was defined at the cohort in which two dose-limiting toxicities were observed, or as the highest target dose tested in the absence of DLTs. The determined MTD was considered the Recommended Phase 2 Dose.

Dose Levels (3 week cycles) MM-121 doses tested: 20 mg/kg IV one-time loading dose then 12 mg/kg IV QW (20/12 mg/kg); 40/20 mg/kg Pemetrexed doses tested: 500 mg/m2 Day 1

To Determine the Maximum Tolerated Dose (MTD) of MM-121 in Combination With Anticancer Therapies: CabazitaxelFrom date of first dose to 30 days after termination, the longest 88.1 weeks

Using a 3+3 dose escalation model, the maximum tolerated dose of each therapy combination was determined by assessing dose-limiting toxicities in each cohort. If 3 patients were treated and passed the observation window, escalation to the next cohort was initiated. If a DLT was reported, 3-4 additional patients were enrolled and observed. If a DLT was observed in expanded cohort, this dose was considered to be the maximum tolerated dose. The maximum tolerated dose was defined at the cohort in which two dose-limiting toxicities were observed, or as the highest target dose tested in the absence of DLTs. The determined MTD was considered the Recommended Phase 2 Dose.

Dose Levels (3 week cycles) MM-121 doses tested: 20 mg/kg IV one-time loading dose then 12 mg/kg IV QW (20/12 mg/kg); 40/20 mg/kg Cabazitaxel doses tested: 20 or 25 mg/m2 Day 1 of 3

To Characterize Dose-limiting Toxicities (DLTs) Associated With the Combination of MM-121 With Anticancer TherapiesFrom date of first dose to 30 days after termination, the longest 88.1 weeks

To establish the safety of escalating doses of MM-121 administered in combination with multiple anti-cancer therapies in order to determine the recommended phase 2 dose. Dose-escalation conducted using standard 3+3 model to determine maximum tolerated dose. Reports of Dose-Limiting Toxicities (DLTs) were assessed to determine the MTD to be used for the expansion cohort. DLTs were not measured in the Expansion Cohort.

To Evaluate the Safety and Tolerability of Escalating Doses of the MM-121 Anticancer TherapiesFrom date of first dose to 30 days after termination, the longest 88.1 weeks

Safety and tolerability data presented in detail in the adverse events and serious adverse events section of the results posting

To Determine the Maximum Tolerated Dose (MTD) of MM-121 in Combination With Anticancer Therapies: MM-121 DosesFrom date of first dose to 30 days after termination, the longest 88.1 weeks

Using a 3+3 dose escalation model, the maximum tolerated dose of each therapy combination was determined by assessing dose-limiting toxicities in each cohort. If 3 patients were treated and passed the observation window, escalation to the next cohort was initiated. If a DLT was reported, 3-4 additional patients were enrolled and observed. If a DLT was observed in expanded cohort, this dose was considered to be the maximum tolerated dose. The maximum tolerated dose was defined at the cohort in which two dose-limiting toxicities were observed, or as the highest target dose tested in the absence of DLTs. The determined MTD was considered the Recommended Phase 2 Dose.

Dose Levels (3 week cycles) MM-121 doses tested: 20 mg/kg IV one-time loading dose then 12 mg/kg IV QW (20/12 mg/kg); 40/20 mg/kg Gemcitabine doses tested: 1000 mg/m2 Day 1 and 8 Pemetrexed doses tested: 500 mg/m2 Day 1 Carboplatin doses tested: 5 or 6 AUC Day 1 Cabazitaxel doses tested: 20 or 25 mg/m2 Day 1 of 3

To Determine the Maximum Tolerated Dose (MTD) of MM-121 in Combination With Anticancer Therapies: GemcitabineFrom date of first dose to 30 days after termination, the longest 88.1 weeks

Using a 3+3 dose escalation model, the maximum tolerated dose of each therapy combination was determined by assessing dose-limiting toxicities in each cohort. If 3 patients were treated and passed the observation window, escalation to the next cohort was initiated. If a DLT was reported, 3-4 additional patients were enrolled and observed. If a DLT was observed in expanded cohort, this dose was considered to be the maximum tolerated dose. The maximum tolerated dose was defined at the cohort in which two dose-limiting toxicities were observed, or as the highest target dose tested in the absence of DLTs. The determined MTD was considered the Recommended Phase 2 Dose.

Dose Levels (3 week cycles) MM-121 doses tested: 20 mg/kg IV one-time loading dose then 12 mg/kg IV QW (20/12 mg/kg); 40/20 mg/kg Gemcitabine doses tested: 1000 mg/m2 Day 1 and 8

To Determine the Maximum Tolerated Dose (MTD) of MM-121 in Combination With Anticancer Therapies: CarboplatinFrom date of first dose to 30 days after termination, the longest 88.1 weeks

Maximum Tolerated Dose reported in Target AUC, as calculated by the Calvert Formula

Using a 3+3 dose escalation model, the maximum tolerated dose of each therapy combination was determined by assessing dose-limiting toxicities in each cohort. If 3 patients were treated and passed the observation window, escalation to the next cohort was initiated. If a DLT was reported, 3-4 additional patients were enrolled and observed. If a DLT was observed in expanded cohort, this dose was considered to be the maximum tolerated dose. The maximum tolerated dose was defined at the cohort in which two dose-limiting toxicities were observed, or as the highest target dose tested in the absence of DLTs. The determined MTD was considered the Recommended Phase 2 Dose.

Dose Levels (3 week cycles) MM-121 doses tested: 20 mg/kg IV one-time loading dose then 12 mg/kg IV QW (20/12 mg/kg); 40/20 mg/kg Carboplatin doses tested: 5 or 6 AUC Day 1

Secondary Outcome Measures
NameTimeMethod
Objective Response Ratepatients were assessed for response during their time on study, the longest of which was 88.1 weeks

To determine the number of patients reporting an objective response using RECIST v 1.1 where a Partial Response (PR) is defined as \>20% decrease in tumor burden from baseline and a Complete Response (CR) is defined as complete disappearance from tumor burden from baseline. Objective Response is presented as the total # patients with PR or CR.

PharmacokineticsCollections taken at Cycle 1, Week 1 for all patients at start of the infusion (pretreatment), at the end of the infusion, and at 2, 4, 24 and 48 hours after the start of the MM-121 infusion

Pharmacokinetic (PK) evaluation was performed on plasma samples obtained weekly for the first cycle of the study and then on day 1 of each additional cycle to assess pre-treatment trough concentrations of MM-121. Non-compartmental analysis (NCA) was performed to calculate standard PK parameters, including the maximum observed concentration (Cmax). Serum levels of MM-121 were measured at a central lab using an enzyme-linked immunosorbent assay (ELISA). Data is presented per dose level of MM-121 (12 mg/kg, 20 mg/kg, or 40/20 mg/kg).

Pharmacokinetics (AUClast)Collections taken at Cycle 1, Week 1 for all patients at the start of the infusion (pretreatment), at the end of the infusion, and at 2, 4, 24 and 48 hours after the start of the MM-121 infusion

Pharmacokinetic (PK) evaluation was performed on plasma samples obtained weekly for the first cycle of the study and then on day 1 of each additional cycle to assess pre-treatment trough concentrations of MM-121. Non-compartmental analysis (NCA) was performed to calculate standard PK parameters, including the AUClast. Serum levels of MM-121 were measured at a central lab using an enzyme-linked immunosorbent assay (ELISA). Data is presented per dose level of MM-121 (12 mg/kg, 20 mg/kg, or 40/20 mg/kg) and per study part (Part 1 or Part 2).

ImmunogenicitySamples were collected for all patients pre-dose on all cycles for duration of treatment, the longest of which was 88.1 weeks, and a collection was made post-infusion in any case of infusion reaction

Samples were collected to determine the presence of an immunologic reaction to MM-121 (i.e. human anti-human antibodies).

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