Trial Outcomes & Findings for Milademetan in Advanced/Metastatic Solid Tumors (NCT NCT05012397)

NCT ID: NCT05012397

Last Updated: 2024-10-17

Results Overview

Overall Response Rate (ORR) of treatment with milademetan, as defined as the percentage of patients who have achieved confirmed complete response (CR) or Partial Response (PR) according to RECIST v1.1

Recruitment status

TERMINATED

Study phase

PHASE2

Target enrollment

40 participants

Primary outcome timeframe

From first dose date to first confirmed complete or partial response or study completion date; up to 23.5 months.

Results posted on

2024-10-17

Participant Flow

All enrolled participants (40 participants) received the study medication. Twenty-eight (28) discontinued treatment. Fourteen (14) completed the study.

Participant milestones

Participant milestones
Measure
Milademetan (RAIN-32)
260 mg once daily (QD) orally on Days 1 to 3 and Days 15 to 17 of each 28-day cycle
Overall Study
STARTED
40
Overall Study
COMPLETED
14
Overall Study
NOT COMPLETED
26

Reasons for withdrawal

Reasons for withdrawal
Measure
Milademetan (RAIN-32)
260 mg once daily (QD) orally on Days 1 to 3 and Days 15 to 17 of each 28-day cycle
Overall Study
Death
10
Overall Study
Physician Decision
9
Overall Study
Withdrawal by Subject
5
Overall Study
Lost to Follow-up
2

Baseline Characteristics

Milademetan in Advanced/Metastatic Solid Tumors

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Milademetan (RAIN-32)
n=40 Participants
260 mg once daily (QD) orally on Days 1 to 3 and Days 15 to 17 of each 28-day cycle
Age, Continuous
56.5 years
STANDARD_DEVIATION 13.3 • n=5 Participants
Sex: Female, Male
Female
26 Participants
n=5 Participants
Sex: Female, Male
Male
14 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
3 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
1 Participants
n=5 Participants
Race (NIH/OMB)
White
32 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
4 Participants
n=5 Participants
Region of Enrollment
United States
40 participants
n=5 Participants
BMI
24.8 kg/m2
STANDARD_DEVIATION 5.1 • n=5 Participants

PRIMARY outcome

Timeframe: From first dose date to first confirmed complete or partial response or study completion date; up to 23.5 months.

Population: This analysis is conducted in all participants within the Centrally confirmed population (CCP) which is defined as all participants who had at least one dose of study treatment and also have WT TP53 and MDM2 amplification with CN ≥ 8 by central testing.

Overall Response Rate (ORR) of treatment with milademetan, as defined as the percentage of patients who have achieved confirmed complete response (CR) or Partial Response (PR) according to RECIST v1.1

Outcome measures

Outcome measures
Measure
Milademetan (RAIN-32)
n=31 Participants
260 mg once daily (QD) orally on Days 1 to 3 and Days 15 to 17 of each 28-day cycle
To Determine the ORR of Treatment With Milademetan in Patients With Advanced/Metastatic Solid Tumors With MDM2 Gene Amplification.
3.2 percentage of participants
Interval 0.1 to 16.7

SECONDARY outcome

Timeframe: From start date of response to first PD or study completion date; up to 23.5 months

Population: This analysis is conducted in all participants within the Centrally confirmed population (CCP) who had a confirmed CR or PR.

DOR defined as the time from the date of first documentation of CR or PR according to RECIST v1.1 to the date of disease progression or death due to any cause according to Investigator assessment

Outcome measures

Outcome measures
Measure
Milademetan (RAIN-32)
n=1 Participants
260 mg once daily (QD) orally on Days 1 to 3 and Days 15 to 17 of each 28-day cycle
Duration of Response (DOR)
3.84 months

SECONDARY outcome

Timeframe: From the first dose date to the earliest date of recurrence, progression, death, or study completion; up to 23.5 months

Population: The efficacy analysis is conducted in all participants within the Centrally confirmed population (CCP).

PFS defined as the time from the date of the first dose of the study drug to the earliest date of the first objective documentation of radiographic disease progression or death due to any cause according to Investigator assessment

Outcome measures

Outcome measures
Measure
Milademetan (RAIN-32)
n=31 Participants
260 mg once daily (QD) orally on Days 1 to 3 and Days 15 to 17 of each 28-day cycle
Progression-free Survival (PFS)
3.5 months
Interval 1.8 to 3.7

SECONDARY outcome

Timeframe: From the start date of the most recent prior line of therapy to the PD date on the study; up to 23.5 months

Population: The efficacy analysis is conducted in all participants within the Centrally confirmed population (CCP).

GMI defined as the ratio of Time to Progression (TTP) with the nth line of therapy (TTPn; here defined as milademetan) to the most recent prior line of therapy (TTPn-1)

Outcome measures

Outcome measures
Measure
Milademetan (RAIN-32)
n=31 Participants
260 mg once daily (QD) orally on Days 1 to 3 and Days 15 to 17 of each 28-day cycle
Growth Modulation Index (GMI)
0.76 months
Interval 0.47 to 0.98

SECONDARY outcome

Timeframe: From first dose date to first CR, PR, or stable disease (SD) >= 16 weeks, or study completion date; up to 23.5 months

Population: The efficacy analysis is conducted in all participants within the Centrally confirmed population (CCP).

DCR defined as the percentage of patients with confirmed CR, PR, or stable disease (SD) for ≥ 16 weeks

Outcome measures

Outcome measures
Measure
Milademetan (RAIN-32)
n=31 Participants
260 mg once daily (QD) orally on Days 1 to 3 and Days 15 to 17 of each 28-day cycle
Disease Control Rate (DCR)
22.6 percentage of participants
Interval 9.6 to 41.1

Adverse Events

Milademetan (RAIN-32)

Serious events: 11 serious events
Other events: 40 other events
Deaths: 10 deaths

Serious adverse events

Serious adverse events
Measure
Milademetan (RAIN-32)
n=40 participants at risk
260 mg once daily (QD) orally on Days 1 to 3 and Days 15 to 17 of each 28-day cycle
Blood and lymphatic system disorders
Anemia
7.5%
3/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
Blood and lymphatic system disorders
Thrombocytopenia
7.5%
3/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
Blood and lymphatic system disorders
Leukocytosis
2.5%
1/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
Blood and lymphatic system disorders
Neutropenia
2.5%
1/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
Blood and lymphatic system disorders
Normocytic anemia
2.5%
1/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
Nervous system disorders
Dizziness
2.5%
1/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
Nervous system disorders
Presyncope
2.5%
1/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
Nervous system disorders
Seizure
2.5%
1/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
Nervous system disorders
Syncope
2.5%
1/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
Gastrointestinal disorders
Ascites
2.5%
1/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
Gastrointestinal disorders
Gastric haemorrhage
2.5%
1/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
Respiratory, thoracic and mediastinal disorders
Pleural effusion
2.5%
1/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
Respiratory, thoracic and mediastinal disorders
Pulmonary embolism
2.5%
1/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
Ear and labyrinth disorders
Tympanic membrane perforation
2.5%
1/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
Investigations
blood creatine increased
2.5%
1/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
Musculoskeletal and connective tissue disorders
Muscular weakness
2.5%
1/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Tumor Haemorrhage
2.5%
1/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition

Other adverse events

Other adverse events
Measure
Milademetan (RAIN-32)
n=40 participants at risk
260 mg once daily (QD) orally on Days 1 to 3 and Days 15 to 17 of each 28-day cycle
Blood and lymphatic system disorders
Thrombocytopenia
52.5%
21/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
Gastrointestinal disorders
vomiting
50.0%
20/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
Gastrointestinal disorders
Nausea
45.0%
18/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
General disorders
Fatigue
40.0%
16/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
Gastrointestinal disorders
Diarrhoea
32.5%
13/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
Blood and lymphatic system disorders
Anemia
25.0%
10/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
Blood and lymphatic system disorders
Neutropenia
22.5%
9/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
Gastrointestinal disorders
Abdominal pain
20.0%
8/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
Gastrointestinal disorders
Ascites
12.5%
5/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
Nervous system disorders
Dizziness
12.5%
5/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
Skin and subcutaneous tissue disorders
Rash maculo-papular
12.5%
5/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
Musculoskeletal and connective tissue disorders
Back pain
10.0%
4/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
Metabolism and nutrition disorders
Decreased appetite
10.0%
4/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
Nervous system disorders
Headache
10.0%
4/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
Metabolism and nutrition disorders
Hypophosphatemia
10.0%
4/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
General disorders
Edema peripheral
10.0%
4/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
Musculoskeletal and connective tissue disorders
Pain in extremity
10.0%
4/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
Skin and subcutaneous tissue disorders
Pruritus
10.0%
4/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
Musculoskeletal and connective tissue disorders
Arthralgia
10.0%
4/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
Respiratory, thoracic and mediastinal disorders
COVID-19
7.5%
3/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
Gastrointestinal disorders
Constipation
7.5%
3/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
Respiratory, thoracic and mediastinal disorders
Cough
7.5%
3/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
Gastrointestinal disorders
Dry mouth
7.5%
3/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
Metabolism and nutrition disorders
Hyperglycaemia
7.5%
3/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
Metabolism and nutrition disorders
Hypokalaemia
7.5%
3/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
Infections and infestations
Influenza
7.5%
3/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
Musculoskeletal and connective tissue disorders
Muscular weakness
7.5%
3/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
General disorders
Pyrexia
7.5%
3/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
Investigations
Blood Creatinine increased
5.0%
2/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
Nervous system disorders
Dysgeusia
5.0%
2/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
General disorders
Face oedema
5.0%
2/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
Metabolism and nutrition disorders
Hyponatraemia
5.0%
2/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
General disorders
Mucosal inflammation
5.0%
2/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
Musculoskeletal and connective tissue disorders
Myalgia
5.0%
2/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
Nervous system disorders
Seizure
5.0%
2/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition
Nervous system disorders
Taste disorder
5.0%
2/40 • From the first dose date to 30 days after the last dose date or study completion date whichever came first; up to 23.5 months
meets definition

Additional Information

Clinical Research

Rain Oncology

Phone: 7082323791

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place