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Phase 1/2a Dose-Escalation Study of CRLX301 in Patients With Advanced Solid Tumors

Phase 1/2a Dose-Escalation Study of CRLX301 in Patients With Advanced Solid Tumor Malignancies

Status
Terminated
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02380677
Enrollment
42
Registered
2015-03-05
Start date
2015-04-30
Completion date
2017-10-04
Last updated
2020-06-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Advanced Solid Tumor Malignancy

Brief summary

A Phase 1/2a, open-label, dose-escalation study with enrollment in Phase 1 to continue until determination of the Maximum Tolerated Dose (MTD) /Recommended Phase 2a Dose (RP2D), and then enrollment into Phase 2a expansion cohorts will be initiated.

Detailed description

Phase 1 is an open-label, dose-escalation protocol. It is anticipated that up to 36 patients will be enrolled in Phase 1. All patients will be assigned to treatment with CRLX301 as the single agent. For the first 2 cohorts a 1+5 study design will be utilized. A single patient will be enrolled sequentially into cohort 1 and cohort 2. If either patient in cohort 1 or 2 experiences a dose limiting toxicity (DLT) during Cycle 1, then the cohort will be expanded to enroll additional patients up to a total of 6. As of cohort 3 and for all subsequent cohorts, a 3+3 dose escalation schema will be utilized. MTD/RP2D will be determined at the dose level when \<2 of 6 patients experience a DLT in a cohort. The Phase 2a part of the study will be an open-label expansion cohort study. An additional 24 patients with advanced, histologically confirmed solid tumor malignancies will be enrolled. All patients will be assigned to treatment at the MTD/RP2D with CRLX301 as the single agent. All patients will be followed for safety, tumor response, and progression free survival (PFS) all per RECIST version 1.1 guidelines. Patients will remain on study treatment until they experience progression of disease, unacceptable toxicity, or other specified reason for discontinuation.

Interventions

DRUGCRLX301

Sponsors

NewLink Genetics Corporation
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Phase 1 dose escalation study followed by phase 2a expansion cohort

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Male or female ≥18 years of age 2. Diagnosis of histologically or cytologically confirmed, advanced solid tumor malignancy that is refractory to or not a candidate for standard therapy 3. ECOG 0 or 1 4. Life expectancy \>12 weeks 5. Fertile males or females of childbearing potential agree to use adequate contraception prior to study entry 6. Negative urine pregnancy test

Exclusion criteria

1. Uncontrolled grade 2 or greater toxicity except alopecia 2. Prolongation of QT/QTc interval 3. Women who are pregnant or nursing 4. Any known HIV infection or AIDS or any concurrent infection requiring IV antibiotics 5. Any chronic or concurrent acute liver disease, including viral hepatitis 6. Primary brain malignant tumors 7. Known metastases to the brain 8. Uncontrolled hypertension 9. Concurrent participation in any other investigational study 10. Concurrent treatment with anticoagulation medication, unless approved by Sponsor 11. History of stroke, deep venous thrombosis (DVT), or transient ischemic attack (TIA) 12. History of other cancer type, except for cutaneous basal cell or squamous cell carcinoma, or cervical or prostate cancer in situ, within the last 2 years prior to C1D1 13. Uncontrolled concurrent disease or illness 14. History of severe hypersensitivity reaction to taxanes 15. Peripheral neuropathy exclusions 16. Other condition or laboratory abnormality that may increase the risk associated with study participation or study drug administration or that may interfere with the interpretation of study results and, in the judgment of the investigator, would make the patient inappropriate for the study.

Design outcomes

Primary

MeasureTime frameDescription
Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting Toxicities13 to 19 monthsDetermination of MTD is dependent upon number of dose limiting toxicities and significant adverse events observed.
Number of Phase 2a Participants With Adverse Events as a Measure of Safety and Tolerability12 monthsSafety variables will include AEs, SAEs, Severe AEs, Related AEs and AEs leading to Discontinuation in phase 2a subjects.

Secondary

MeasureTime frameDescription
Evaluate the Pharmacokinetic (PK) Profile of CRLX3012.5 yearsArea under the concentration vs time curve of released docetaxel in blood and/or urine specimens of patients receiving at least 1 dose of CRLX301.
Percentage of Participants Stratified by Best Overall Tumor Response2.5 yearsBest overall tumor response will be provided per dose cohort using RECIST 1.1

Countries

United States

Participant flow

Participants by arm

ArmCount
Schedule 1 Cohort 1
CRLX301 7.5 mg/m2 IV given every 3 weeks CRLX301
1
Schedule 1 Cohort 2
CRLX301 15 mg/m2 IV given every 3 weeks CRLX301
1
Schedule 1 Cohort 3
CRLX301 30 mg/m2 IV given every 3 weeks CRLX301
3
Schedule 1 Cohort 5
CRLX301 60 mg/m2 IV given every 3 weeks CRLX301
3
Schedule 1 Cohort 6
CRLX301 75 mg/m2 IV given every 3 weeks CRLX301
6
Schedule 1 Cohort 7
CRLX301 90 mg/m2 IV given every 3 weeks CRLX301
6
Schedule 2 Cohort 1
CRLX301 25 mg/m2 IV given weekly CRLX301
3
Schedule 2 Cohort 2
CRLX301 35 mg/m2 IV given weekly CRLX301
4
Schedule 2 Cohort 3
CRLX301 45 mg/m2 IV given weekly CRLX301
4
Schedule 2 Cohort 4
CRLX301 54 mg/m2 IV given weekly CRLX301
2
Schedule 2 Cohort 5
CRLX301 54 mg/m2 given weekly for 3 weeks with 1 week off CRLX301
4
Phase 2a Expansion Cohort
CRLX301 75mg/m2 IV given every 3 weeks CRLX301
5
Total42

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005FG006FG007FG008FG009FG010FG011
Overall StudyAdverse Event000114222121
Overall StudyLack of Efficacy012041122021
Overall StudyOther000111000000
Overall StudyPhysician Decision101100000000
Overall StudyWithdrawal by Subject000000000103

Baseline characteristics

CharacteristicSchedule 2 Cohort 5Phase 2a Expansion CohortTotalSchedule 2 Cohort 2Schedule 2 Cohort 1Schedule 1 Cohort 7Schedule 1 Cohort 6Schedule 1 Cohort 5Schedule 1 Cohort 3Schedule 1 Cohort 2Schedule 1 Cohort 1Schedule 2 Cohort 4Schedule 2 Cohort 3
Age, Continuous60.3 years
STANDARD_DEVIATION 3.1
66.8 years
STANDARD_DEVIATION 4.15
61.8 years
STANDARD_DEVIATION 10.2
56 years
STANDARD_DEVIATION 11.52
65 years
STANDARD_DEVIATION 2.65
60.2 years
STANDARD_DEVIATION 11.62
63.8 years
STANDARD_DEVIATION 9.79
67.3 years
STANDARD_DEVIATION 1.53
59 years
STANDARD_DEVIATION 19
43 years74 years72.5 years
STANDARD_DEVIATION 2.12
54 years
STANDARD_DEVIATION 12.25
Baseline BMI (kg/m^2)26.758 kg/m^2
STANDARD_DEVIATION 4.967
29.118 kg/m^2
STANDARD_DEVIATION 8.0521
27.783 kg/m^2
STANDARD_DEVIATION 3.2805
25.173 kg/m^2
STANDARD_DEVIATION 5.7256
33.869 kg/m^2
STANDARD_DEVIATION 5.5301
27.422 kg/m^2
STANDARD_DEVIATION 2.781
26.779 kg/m^2
STANDARD_DEVIATION 4.8762
26.917 kg/m^2
STANDARD_DEVIATION 7.6956
28.023 kg/m^2
STANDARD_DEVIATION 1.2871
19.63 kg/m^230.255 kg/m^228.142 kg/m^2
STANDARD_DEVIATION 3.4551
24.340 kg/m^2
STANDARD_DEVIATION 3.1519
Baseline ECOG Status
ECOG PS Score 0
1 Participants1 Participants17 Participants1 Participants1 Participants3 Participants4 Participants1 Participants2 Participants0 Participants0 Participants0 Participants3 Participants
Baseline ECOG Status
ECOG PS Score 1
3 Participants4 Participants25 Participants3 Participants2 Participants3 Participants2 Participants2 Participants1 Participants1 Participants1 Participants2 Participants1 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants2 Participants4 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants0 Participants0 Participants0 Participants1 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
4 Participants3 Participants38 Participants4 Participants3 Participants6 Participants6 Participants3 Participants2 Participants1 Participants1 Participants2 Participants3 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Primary Site of Disease at Study Entry
Abdomen/peritoneum
0 Participants0 Participants3 Participants0 Participants0 Participants1 Participants0 Participants1 Participants0 Participants0 Participants0 Participants0 Participants1 Participants
Primary Site of Disease at Study Entry
Bladder
0 Participants0 Participants1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants
Primary Site of Disease at Study Entry
Bone
0 Participants0 Participants1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants0 Participants
Primary Site of Disease at Study Entry
Breast
0 Participants0 Participants1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants
Primary Site of Disease at Study Entry
Hepatic/liver
0 Participants0 Participants4 Participants0 Participants0 Participants3 Participants1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Primary Site of Disease at Study Entry
Lung
0 Participants0 Participants3 Participants0 Participants1 Participants0 Participants0 Participants1 Participants0 Participants0 Participants1 Participants0 Participants0 Participants
Primary Site of Disease at Study Entry
Lymph nodes
0 Participants1 Participants2 Participants0 Participants0 Participants0 Participants1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Primary Site of Disease at Study Entry
Other (not specified)
3 Participants1 Participants18 Participants3 Participants2 Participants1 Participants3 Participants0 Participants3 Participants1 Participants0 Participants0 Participants1 Participants
Primary Site of Disease at Study Entry
Pancreas
0 Participants0 Participants2 Participants1 Participants0 Participants0 Participants0 Participants1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Primary Site of Disease at Study Entry
Pleura
0 Participants0 Participants1 Participants0 Participants0 Participants0 Participants1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Primary Site of Disease at Study Entry
Prostate
1 Participants3 Participants5 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants0 Participants
Primary Site of Disease at Study Entry
Skin
0 Participants0 Participants1 Participants0 Participants0 Participants1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants3 Participants1 Participants0 Participants1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants2 Participants0 Participants0 Participants1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants
Race (NIH/OMB)
White
4 Participants5 Participants37 Participants3 Participants3 Participants4 Participants6 Participants3 Participants3 Participants1 Participants1 Participants1 Participants3 Participants
Sex: Female, Male
Female
1 Participants0 Participants16 Participants1 Participants3 Participants4 Participants2 Participants1 Participants2 Participants0 Participants0 Participants0 Participants2 Participants
Sex: Female, Male
Male
3 Participants5 Participants26 Participants3 Participants0 Participants2 Participants4 Participants2 Participants1 Participants1 Participants1 Participants2 Participants2 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
EG006
affected / at risk
EG007
affected / at risk
EG008
affected / at risk
EG009
affected / at risk
EG010
affected / at risk
EG011
affected / at risk
deaths
Total, all-cause mortality
0 / 11 / 11 / 31 / 30 / 60 / 60 / 32 / 40 / 40 / 20 / 41 / 5
other
Total, other adverse events
1 / 11 / 13 / 33 / 36 / 66 / 63 / 34 / 44 / 42 / 24 / 45 / 5
serious
Total, serious adverse events
0 / 11 / 13 / 33 / 31 / 63 / 61 / 32 / 41 / 41 / 20 / 42 / 5

Outcome results

Primary

Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting Toxicities

Determination of MTD is dependent upon number of dose limiting toxicities and significant adverse events observed.

Time frame: 13 to 19 months

Population: The phase 1 safety population were analyzed for dose limiting toxicities and treatment emergent adverse events. Treatment totals include all patients that received the specific dose at any point during the study.

ArmMeasureGroupValue (NUMBER)
Schedule 1 Cohort 1Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one DLT0 Patients with event
Schedule 1 Cohort 1Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one Serious TEAE0 Patients with event
Schedule 1 Cohort 1Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one TEAE leading to discontinuation0 Patients with event
Schedule 1 Cohort 1Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one TEAE1 Patients with event
Schedule 1 Cohort 1Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one related TEAE1 Patients with event
Schedule 1 Cohort 1Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one severe TEAE0 Patients with event
Schedule 1 Cohort 2Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one DLT0 Patients with event
Schedule 1 Cohort 2Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one TEAE1 Patients with event
Schedule 1 Cohort 2Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one severe TEAE1 Patients with event
Schedule 1 Cohort 2Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one TEAE leading to discontinuation0 Patients with event
Schedule 1 Cohort 2Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one Serious TEAE1 Patients with event
Schedule 1 Cohort 2Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one related TEAE1 Patients with event
Schedule 1 Cohort 3Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one severe TEAE3 Patients with event
Schedule 1 Cohort 3Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one TEAE3 Patients with event
Schedule 1 Cohort 3Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one related TEAE2 Patients with event
Schedule 1 Cohort 3Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one DLT0 Patients with event
Schedule 1 Cohort 3Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one TEAE leading to discontinuation0 Patients with event
Schedule 1 Cohort 3Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one Serious TEAE3 Patients with event
Schedule 1 Cohort 5Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one TEAE leading to discontinuation2 Patients with event
Schedule 1 Cohort 5Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one Serious TEAE3 Patients with event
Schedule 1 Cohort 5Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one severe TEAE3 Patients with event
Schedule 1 Cohort 5Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one TEAE3 Patients with event
Schedule 1 Cohort 5Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one related TEAE3 Patients with event
Schedule 1 Cohort 5Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one DLT0 Patients with event
Schedule 1 Cohort 6Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one severe TEAE4 Patients with event
Schedule 1 Cohort 6Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one TEAE6 Patients with event
Schedule 1 Cohort 6Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one TEAE leading to discontinuation1 Patients with event
Schedule 1 Cohort 6Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one Serious TEAE1 Patients with event
Schedule 1 Cohort 6Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one related TEAE6 Patients with event
Schedule 1 Cohort 6Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one DLT0 Patients with event
Schedule 1 Cohort 7Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one related TEAE6 Patients with event
Schedule 1 Cohort 7Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one TEAE6 Patients with event
Schedule 1 Cohort 7Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one Serious TEAE3 Patients with event
Schedule 1 Cohort 7Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one DLT2 Patients with event
Schedule 1 Cohort 7Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one severe TEAE6 Patients with event
Schedule 1 Cohort 7Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one TEAE leading to discontinuation4 Patients with event
Schedule 2 Cohort 1Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one TEAE leading to discontinuation2 Patients with event
Schedule 2 Cohort 1Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one TEAE3 Patients with event
Schedule 2 Cohort 1Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one DLT0 Patients with event
Schedule 2 Cohort 1Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one severe TEAE0 Patients with event
Schedule 2 Cohort 1Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one Serious TEAE1 Patients with event
Schedule 2 Cohort 1Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one related TEAE3 Patients with event
Schedule 2 Cohort 2Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one TEAE leading to discontinuation1 Patients with event
Schedule 2 Cohort 2Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one severe TEAE2 Patients with event
Schedule 2 Cohort 2Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one DLT0 Patients with event
Schedule 2 Cohort 2Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one TEAE4 Patients with event
Schedule 2 Cohort 2Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one related TEAE3 Patients with event
Schedule 2 Cohort 2Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one Serious TEAE2 Patients with event
Schedule 2 Cohort 3Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one DLT0 Patients with event
Schedule 2 Cohort 3Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one severe TEAE2 Patients with event
Schedule 2 Cohort 3Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one Serious TEAE1 Patients with event
Schedule 2 Cohort 3Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one related TEAE4 Patients with event
Schedule 2 Cohort 3Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one TEAE4 Patients with event
Schedule 2 Cohort 3Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one TEAE leading to discontinuation2 Patients with event
Schedule 2 Cohort 4Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one TEAE2 Patients with event
Schedule 2 Cohort 4Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one severe TEAE2 Patients with event
Schedule 2 Cohort 4Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one TEAE leading to discontinuation1 Patients with event
Schedule 2 Cohort 4Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one Serious TEAE1 Patients with event
Schedule 2 Cohort 4Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one DLT0 Patients with event
Schedule 2 Cohort 4Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one related TEAE2 Patients with event
Schedule 2 Cohort 5Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one TEAE leading to discontinuation0 Patients with event
Schedule 2 Cohort 5Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one TEAE4 Patients with event
Schedule 2 Cohort 5Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one DLT0 Patients with event
Schedule 2 Cohort 5Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one Serious TEAE0 Patients with event
Schedule 2 Cohort 5Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one severe TEAE4 Patients with event
Schedule 2 Cohort 5Number of Phase 1 Participants With Treatment Emergent Adverse Events and Dose Limiting ToxicitiesAt least one related TEAE4 Patients with event
Primary

Number of Phase 2a Participants With Adverse Events as a Measure of Safety and Tolerability

Safety variables will include AEs, SAEs, Severe AEs, Related AEs and AEs leading to Discontinuation in phase 2a subjects.

Time frame: 12 months

Population: The safety population (all patients) were analyzed for dose limiting toxicities and treatment emergent adverse events. Treatment totals include all patients that received the specific dose at any point during the study.

ArmMeasureGroupValue (NUMBER)
Schedule 1 Cohort 1Number of Phase 2a Participants With Adverse Events as a Measure of Safety and TolerabilityAt least one TEAE5 Patients with event
Schedule 1 Cohort 1Number of Phase 2a Participants With Adverse Events as a Measure of Safety and TolerabilityAt least one Serious TEAE2 Patients with event
Schedule 1 Cohort 1Number of Phase 2a Participants With Adverse Events as a Measure of Safety and TolerabilityAt least one severe TEAE5 Patients with event
Schedule 1 Cohort 1Number of Phase 2a Participants With Adverse Events as a Measure of Safety and TolerabilityAt least one related TEAE5 Patients with event
Schedule 1 Cohort 1Number of Phase 2a Participants With Adverse Events as a Measure of Safety and TolerabilityAt least one TEAE leading to discontinuation2 Patients with event
Secondary

Evaluate the Pharmacokinetic (PK) Profile of CRLX301

Area under the concentration vs time curve of released docetaxel in blood and/or urine specimens of patients receiving at least 1 dose of CRLX301.

Time frame: 2.5 years

ArmMeasureValue (MEAN)Dispersion
Schedule 1 Cohort 1Evaluate the Pharmacokinetic (PK) Profile of CRLX301295 ng/ml*hStandard Deviation 0
Schedule 1 Cohort 2Evaluate the Pharmacokinetic (PK) Profile of CRLX3012197 ng/ml*hStandard Deviation 0
Schedule 1 Cohort 3Evaluate the Pharmacokinetic (PK) Profile of CRLX3011695 ng/ml*hStandard Deviation 438
Schedule 1 Cohort 5Evaluate the Pharmacokinetic (PK) Profile of CRLX3013783 ng/ml*hStandard Deviation 1054
Schedule 1 Cohort 6Evaluate the Pharmacokinetic (PK) Profile of CRLX3013613 ng/ml*hStandard Deviation 1054
Schedule 1 Cohort 7Evaluate the Pharmacokinetic (PK) Profile of CRLX3014639 ng/ml*hStandard Deviation 1561
Schedule 2 Cohort 1Evaluate the Pharmacokinetic (PK) Profile of CRLX3011433 ng/ml*hStandard Deviation 154
Schedule 2 Cohort 2Evaluate the Pharmacokinetic (PK) Profile of CRLX3012205 ng/ml*hStandard Deviation 731
Schedule 2 Cohort 3Evaluate the Pharmacokinetic (PK) Profile of CRLX3012019 ng/ml*hStandard Deviation 325
Schedule 2 Cohort 4Evaluate the Pharmacokinetic (PK) Profile of CRLX3012350 ng/ml*hStandard Deviation 453
Secondary

Percentage of Participants Stratified by Best Overall Tumor Response

Best overall tumor response will be provided per dose cohort using RECIST 1.1

Time frame: 2.5 years

Population: All patients treated on study (safety population) were evaluated for overall tumor response.

ArmMeasureGroupValue (NUMBER)
Schedule 1 Cohort 1Percentage of Participants Stratified by Best Overall Tumor ResponseComplete Response0 percentage of participants
Schedule 1 Cohort 1Percentage of Participants Stratified by Best Overall Tumor ResponsePartial Response0 percentage of participants
Schedule 1 Cohort 1Percentage of Participants Stratified by Best Overall Tumor ResponseStable Disease0 percentage of participants
Schedule 1 Cohort 1Percentage of Participants Stratified by Best Overall Tumor ResponseProgressive Disease100 percentage of participants
Schedule 1 Cohort 1Percentage of Participants Stratified by Best Overall Tumor ResponseNot Evaluated0 percentage of participants
Schedule 1 Cohort 2Percentage of Participants Stratified by Best Overall Tumor ResponsePartial Response0 percentage of participants
Schedule 1 Cohort 2Percentage of Participants Stratified by Best Overall Tumor ResponseStable Disease0 percentage of participants
Schedule 1 Cohort 2Percentage of Participants Stratified by Best Overall Tumor ResponseComplete Response0 percentage of participants
Schedule 1 Cohort 2Percentage of Participants Stratified by Best Overall Tumor ResponseNot Evaluated0 percentage of participants
Schedule 1 Cohort 2Percentage of Participants Stratified by Best Overall Tumor ResponseProgressive Disease100 percentage of participants
Schedule 1 Cohort 3Percentage of Participants Stratified by Best Overall Tumor ResponseComplete Response0 percentage of participants
Schedule 1 Cohort 3Percentage of Participants Stratified by Best Overall Tumor ResponsePartial Response0 percentage of participants
Schedule 1 Cohort 3Percentage of Participants Stratified by Best Overall Tumor ResponseProgressive Disease33.3 percentage of participants
Schedule 1 Cohort 3Percentage of Participants Stratified by Best Overall Tumor ResponseNot Evaluated0 percentage of participants
Schedule 1 Cohort 3Percentage of Participants Stratified by Best Overall Tumor ResponseStable Disease66.7 percentage of participants
Schedule 1 Cohort 5Percentage of Participants Stratified by Best Overall Tumor ResponseComplete Response0 percentage of participants
Schedule 1 Cohort 5Percentage of Participants Stratified by Best Overall Tumor ResponseNot Evaluated0 percentage of participants
Schedule 1 Cohort 5Percentage of Participants Stratified by Best Overall Tumor ResponseProgressive Disease0 percentage of participants
Schedule 1 Cohort 5Percentage of Participants Stratified by Best Overall Tumor ResponseStable Disease100 percentage of participants
Schedule 1 Cohort 5Percentage of Participants Stratified by Best Overall Tumor ResponsePartial Response0 percentage of participants
Schedule 1 Cohort 6Percentage of Participants Stratified by Best Overall Tumor ResponseStable Disease16.7 percentage of participants
Schedule 1 Cohort 6Percentage of Participants Stratified by Best Overall Tumor ResponsePartial Response0 percentage of participants
Schedule 1 Cohort 6Percentage of Participants Stratified by Best Overall Tumor ResponseProgressive Disease66.7 percentage of participants
Schedule 1 Cohort 6Percentage of Participants Stratified by Best Overall Tumor ResponseNot Evaluated0 percentage of participants
Schedule 1 Cohort 6Percentage of Participants Stratified by Best Overall Tumor ResponseComplete Response0 percentage of participants
Schedule 1 Cohort 7Percentage of Participants Stratified by Best Overall Tumor ResponseComplete Response0 percentage of participants
Schedule 1 Cohort 7Percentage of Participants Stratified by Best Overall Tumor ResponseStable Disease16.7 percentage of participants
Schedule 1 Cohort 7Percentage of Participants Stratified by Best Overall Tumor ResponseProgressive Disease16.7 percentage of participants
Schedule 1 Cohort 7Percentage of Participants Stratified by Best Overall Tumor ResponseNot Evaluated0 percentage of participants
Schedule 1 Cohort 7Percentage of Participants Stratified by Best Overall Tumor ResponsePartial Response0 percentage of participants
Schedule 2 Cohort 1Percentage of Participants Stratified by Best Overall Tumor ResponsePartial Response0 percentage of participants
Schedule 2 Cohort 1Percentage of Participants Stratified by Best Overall Tumor ResponseProgressive Disease0 percentage of participants
Schedule 2 Cohort 1Percentage of Participants Stratified by Best Overall Tumor ResponseComplete Response0 percentage of participants
Schedule 2 Cohort 1Percentage of Participants Stratified by Best Overall Tumor ResponseStable Disease100 percentage of participants
Schedule 2 Cohort 1Percentage of Participants Stratified by Best Overall Tumor ResponseNot Evaluated0 percentage of participants
Schedule 2 Cohort 2Percentage of Participants Stratified by Best Overall Tumor ResponseProgressive Disease25 percentage of participants
Schedule 2 Cohort 2Percentage of Participants Stratified by Best Overall Tumor ResponseComplete Response0 percentage of participants
Schedule 2 Cohort 2Percentage of Participants Stratified by Best Overall Tumor ResponsePartial Response0 percentage of participants
Schedule 2 Cohort 2Percentage of Participants Stratified by Best Overall Tumor ResponseStable Disease75 percentage of participants
Schedule 2 Cohort 2Percentage of Participants Stratified by Best Overall Tumor ResponseNot Evaluated0 percentage of participants
Schedule 2 Cohort 3Percentage of Participants Stratified by Best Overall Tumor ResponseProgressive Disease25 percentage of participants
Schedule 2 Cohort 3Percentage of Participants Stratified by Best Overall Tumor ResponsePartial Response25 percentage of participants
Schedule 2 Cohort 3Percentage of Participants Stratified by Best Overall Tumor ResponseStable Disease50 percentage of participants
Schedule 2 Cohort 3Percentage of Participants Stratified by Best Overall Tumor ResponseComplete Response0 percentage of participants
Schedule 2 Cohort 3Percentage of Participants Stratified by Best Overall Tumor ResponseNot Evaluated0 percentage of participants
Schedule 2 Cohort 4Percentage of Participants Stratified by Best Overall Tumor ResponseStable Disease50 percentage of participants
Schedule 2 Cohort 4Percentage of Participants Stratified by Best Overall Tumor ResponseNot Evaluated0 percentage of participants
Schedule 2 Cohort 4Percentage of Participants Stratified by Best Overall Tumor ResponsePartial Response0 percentage of participants
Schedule 2 Cohort 4Percentage of Participants Stratified by Best Overall Tumor ResponseComplete Response0 percentage of participants
Schedule 2 Cohort 4Percentage of Participants Stratified by Best Overall Tumor ResponseProgressive Disease50 percentage of participants
Schedule 2 Cohort 5Percentage of Participants Stratified by Best Overall Tumor ResponseProgressive Disease0 percentage of participants
Schedule 2 Cohort 5Percentage of Participants Stratified by Best Overall Tumor ResponseComplete Response0 percentage of participants
Schedule 2 Cohort 5Percentage of Participants Stratified by Best Overall Tumor ResponseNot Evaluated0 percentage of participants
Schedule 2 Cohort 5Percentage of Participants Stratified by Best Overall Tumor ResponseStable Disease100 percentage of participants
Schedule 2 Cohort 5Percentage of Participants Stratified by Best Overall Tumor ResponsePartial Response0 percentage of participants
Phase 2a Expansion CohortPercentage of Participants Stratified by Best Overall Tumor ResponseNot Evaluated0 percentage of participants
Phase 2a Expansion CohortPercentage of Participants Stratified by Best Overall Tumor ResponseComplete Response0 percentage of participants
Phase 2a Expansion CohortPercentage of Participants Stratified by Best Overall Tumor ResponseProgressive Disease20 percentage of participants
Phase 2a Expansion CohortPercentage of Participants Stratified by Best Overall Tumor ResponsePartial Response20 percentage of participants
Phase 2a Expansion CohortPercentage of Participants Stratified by Best Overall Tumor ResponseStable Disease40 percentage of participants

Source: ClinicalTrials.gov · Data processed: Mar 1, 2026