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Phase 2 Study of ONC201 in Neuroendocrine Tumors

Phase 2 Study of ONC201 in Neuroendocrine Tumors

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03034200
Enrollment
30
Registered
2017-01-27
Start date
2017-08-02
Completion date
2023-05-19
Last updated
2024-11-26

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

Conditions

Recurrent Neuroendocrine Tumor, Metastatic Neuroendocrine Tumor

Keywords

Pheochromocytoma-paraganglioma, ONC201

Brief summary

The purpose of this study is to learn if a new drug, ONC201 can make tumors become smaller or go away completely. Investigators also want to learn if ONC201 can prevent new deposits of cancer from appearing in new places in participants (metastases). A phase 2 study of ONC201 in PC-PG (pheochromocytoma-paraganglioma) and other neuroendocrine tumors will determine whether inhibition of DRD2 (a member of the dopamine receptor family) is safe in unresectable, recurrent, locally advanced, refractory, or metastatic neuroendocrine cancers including PC-PG, desmoplastic small round cell tumor (DSRCT), Ewing sarcoma (PNET) or any other neuroendicrine tumor with a catecholamine or dopamine biomarker or autocrine or paracrine dependence on dopamine including cholangiocarcinoma and adrenal cortical carcinoma. ONC201 is an investigational (experimental) agent and has a favorable safety profile in phase 1 and early phase 2 clinical trials in advanced cancers. This study design has been chosen to see whether ONC201 is associated with reduction of anti-hypertension medications, safety and significant efficacy against neuroendocrine tumors, especially PC-PG.

Detailed description

Primary Objective To demonstrate objective responses using MRI or CT, and/or PET-CT imaging. The same CT or MRI imaging to assess disease burden at study entry will be compared at week 6 and 3 months. Patients without progression at 3 months will continue treatment and have imaging at 6, 9 and 12 months after study entry. Metabolic response and/or biomarkers will be compared with study entry PET-CT and scans at 6 weeks, 3 months and 12 months. Secondary Objectives Progression - free Survival: This will be calculated according to Response Evaluation Criteria In Solid Tumors (RECIST) or development of new disease Overall survival: Overall survival will be determined by email or telephone contact. Study Design: Phase 2 open-label fixed dose study Metastatic neuroendocrine tumors including PC-PG are rare diseases. The current recommended phase II dose of 625 mg orally on 2 consecutive days every week will be used. The same imaging at study entry will be used at subsequent time points (CT or MRI for week 6 and 3, 6, 9, and 12 months) Imaging modality choice will be influenced by the quality of prior scans of the subject and will be ordered so clinical comparison is possible. Because of travel and lodging considerations associated with the COVID-19 pandemic, some information by the study team/PI may be obtained using virtual visits and 2nd read of scans sent to Cleveland Clinic

Interventions

DRUGONC201

625mg ONC201 will be given on two consecutive days each week

Sponsors

Peter Anderson
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

1. Subjects must have a unresectable, recurrent, locally advanced, refractory, or metastatic neuroendocrine tumor including pheochromocytoma-paraganglioma (PC-PG), DSRCT, Ewing Sarcoma or PNET, or any neuroendocrine tumor with a catecholamine or dopamine biomarker or autocrine or paracrine dependence on dopamine including cholangiocarcinoma and adrenal cortical carcinoma (ACC). 2. There is no limit on number of prior therapies. 3. Age ≥14 years. 4. Subjects must have normal organ and marrow function as defined below. Studies should be done within 3 weeks prior to enrollment * Hemoglobin ≥ 10.0 g/dl * Leukocytes ≥ 1500/mcL * Absolute neutrophil count ≥ 1,000/mcL * Platelet count ≥ 75000/mcL * Total bilirubin within 1.5 x normal institutional limits * AST (SGOT) ≤ 5 X institutional upper limit of normal * ALT (SGPT) ≤ 5 X institutional upper limit of normal * Serum Creatinine \<3.0mg/dL * 5 1 lesion detectable on CT, MRI, 18FDG PET-CT 6 Subjects must have the ability to understand and the willingness to sign a written informed consent document. 7: Karnofsky or if \<16 years old Lansky Play Performance status ≥ 60%

Design outcomes

Primary

MeasureTime frameDescription
Tumor Response According to RECIST CriteriaUp to 1 YearComplete Response (CR) Disappearance or fibrosis of all target lesions. Any pathologic lymph nodes must have reduction in short axis to \<10mm and standardized uptake value (SUV) is \<4. Partial Response (PR) At least 30% decrease in sum of longest diameters of target lesions (compared to initial on study baseline) and any decrease in SUV in Fludeoxyglucose 18F (18FDG) imaging Stable disease (SD) 0-29% decrease in sum of longest diameters of target lesions (compared to initial on study baseline) or 0-19% increase in sum of longest diameters of target lesions (compared to initial on study baseline). SUV may increase or decrease Progressive disease 20% or more increase of sum of longest diameters of target lesions (compared to initial on study baseline). The sum must also be at an increase of at least 5mm or one or more new lesions that are considered metastatic disease

Secondary

MeasureTime frameDescription
Median Duration of TherapyUp to 5 yearsThe median Duration of therapy was measured. Participants with stable disease + PR allowed to continue; participants with progression were taken off therapy.
Overall SurvivalUp to 1 YearTime from beginning of treatment until death, or one year, whichever comes first.

Countries

United States

Participant flow

Participants by arm

ArmCount
Arm A: Metastatic PC-PG
625mg ONC201 will be given once weekly ONC201: 625mg ONC201 will be given on two consecutive days each week
10
Arm B: Other NETs
625mg ONC201 will be given once weekly ONC201: 625mg ONC201 will be given on two consecutive days each week
12
Arm C: PC-PG + Other NETs
625mg ONC201 will be given on day 1 and day 2 of each week ONC201: 625mg ONC201 will be given on two consecutive days each week
8
Total30

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyAdjuvant Therapy001
Overall StudyDisease progression8104
Overall StudyPatient off treatment for other complicating disease010
Overall StudyPhysician Decision203

Baseline characteristics

CharacteristicArm B: Other NETsArm C: PC-PG + Other NETsArm A: Metastatic PC-PGTotal
Age, Customized
0-9 years of age
1 Participants0 Participants0 Participants1 Participants
Age, Customized
10-19 years of age
1 Participants0 Participants1 Participants2 Participants
Age, Customized
20-29 years of age
4 Participants1 Participants0 Participants5 Participants
Age, Customized
30-39 years of age
3 Participants2 Participants2 Participants7 Participants
Age, Customized
40-49 years of age
2 Participants0 Participants2 Participants4 Participants
Age, Customized
50-59 years of age
0 Participants3 Participants2 Participants5 Participants
Age, Customized
60-69 years of age
1 Participants2 Participants2 Participants5 Participants
Age, Customized
70-79 years of age
0 Participants0 Participants1 Participants1 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants0 Participants0 Participants1 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
11 Participants8 Participants9 Participants28 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants1 Participants1 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants0 Participants2 Participants3 Participants
Race (NIH/OMB)
White
11 Participants8 Participants8 Participants27 Participants
Region of Enrollment
United States
12 participants8 participants10 participants30 participants
Sex: Female, Male
Female
3 Participants2 Participants2 Participants7 Participants
Sex: Female, Male
Male
9 Participants6 Participants8 Participants23 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
6 / 108 / 122 / 8
other
Total, other adverse events
4 / 101 / 128 / 8
serious
Total, serious adverse events
3 / 101 / 124 / 8

Outcome results

Primary

Tumor Response According to RECIST Criteria

Complete Response (CR) Disappearance or fibrosis of all target lesions. Any pathologic lymph nodes must have reduction in short axis to \<10mm and standardized uptake value (SUV) is \<4. Partial Response (PR) At least 30% decrease in sum of longest diameters of target lesions (compared to initial on study baseline) and any decrease in SUV in Fludeoxyglucose 18F (18FDG) imaging Stable disease (SD) 0-29% decrease in sum of longest diameters of target lesions (compared to initial on study baseline) or 0-19% increase in sum of longest diameters of target lesions (compared to initial on study baseline). SUV may increase or decrease Progressive disease 20% or more increase of sum of longest diameters of target lesions (compared to initial on study baseline). The sum must also be at an increase of at least 5mm or one or more new lesions that are considered metastatic disease

Time frame: Up to 1 Year

Population: All participants were analyzed.

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Arm A: Metastatic PC-PGTumor Response According to RECIST CriteriaComplete Response (CR)0 Participants
Arm A: Metastatic PC-PGTumor Response According to RECIST CriteriaPartial Response (PR)5 Participants
Arm A: Metastatic PC-PGTumor Response According to RECIST CriteriaStable Disease (SD)2 Participants
Arm A: Metastatic PC-PGTumor Response According to RECIST CriteriaProgressive disease3 Participants
Arm B: Other NETsTumor Response According to RECIST CriteriaProgressive disease9 Participants
Arm B: Other NETsTumor Response According to RECIST CriteriaComplete Response (CR)0 Participants
Arm B: Other NETsTumor Response According to RECIST CriteriaStable Disease (SD)2 Participants
Arm B: Other NETsTumor Response According to RECIST CriteriaPartial Response (PR)1 Participants
Arm C: PC-PG + Other NETsTumor Response According to RECIST CriteriaProgressive disease0 Participants
Arm C: PC-PG + Other NETsTumor Response According to RECIST CriteriaPartial Response (PR)1 Participants
Arm C: PC-PG + Other NETsTumor Response According to RECIST CriteriaStable Disease (SD)7 Participants
Arm C: PC-PG + Other NETsTumor Response According to RECIST CriteriaComplete Response (CR)0 Participants
Secondary

Median Duration of Therapy

The median Duration of therapy was measured. Participants with stable disease + PR allowed to continue; participants with progression were taken off therapy.

Time frame: Up to 5 years

Population: All participants were analyzed for this outcome measure.

ArmMeasureValue (MEDIAN)
Arm A: Metastatic PC-PGMedian Duration of Therapy9 months
Arm B: Other NETsMedian Duration of Therapy3 months
Arm C: PC-PG + Other NETsMedian Duration of Therapy10 months
Secondary

Overall Survival

Time from beginning of treatment until death, or one year, whichever comes first.

Time frame: Up to 1 Year

Population: All participants were analyzed.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Arm A: Metastatic PC-PGOverall Survival4 Participants
Arm B: Other NETsOverall Survival4 Participants
Arm C: PC-PG + Other NETsOverall Survival7 Participants
Post Hoc

Number of Participants With Decline in Karnofsky Performance Status

Participant performance status was measured using Karnofsky Performance Status Scale with the goal of determining the number of participants with a decline in score at 12 weeks. Karnofsky Performance Scale Index is an assessment tool for functional impairment. Scores can range from 0 to 100, with 100 indicating normal performance with no complaints or evidence of disease, while 0 indicates death.

Time frame: 3 months

Population: All participants were analyzed.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Arm A: Metastatic PC-PGNumber of Participants With Decline in Karnofsky Performance Status1 Participants
Arm B: Other NETsNumber of Participants With Decline in Karnofsky Performance Status1 Participants
Arm C: PC-PG + Other NETsNumber of Participants With Decline in Karnofsky Performance Status0 Participants

Source: ClinicalTrials.gov · Data processed: Feb 23, 2026