Trial Outcomes & Findings for BEZ235 Phase II Trial in Patients With Advanced Pancreatic Neuroendocrine Tumors (pNET) After Failure of mTOR Inhibitor Therapy. (NCT NCT01658436)

NCT ID: NCT01658436

Last Updated: 2016-05-02

Results Overview

PFS rate at 16 weeks was defined as a binary variable. Patients were considered as 'progression free' after 16 weeks if they had an overall lesion response of complete response (CR) partial response ('PR) or stable disease (SD)' and "progressed" if they had an overall lesion response of 'Progressive disease (PD) at the scan which occurred on day 105 after start of treatment, or later. Patients whose 16 weeks tumor assessment was unknown, missing or outside the window was not considered as 'progression free' and was considered a "failure" and counted only in the denominator for the estimation of the 16 week progression free rate.

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

31 participants

Primary outcome timeframe

16 weeks after the first BEZ235 administration.

Results posted on

2016-05-02

Participant Flow

This was a Phase II, two-stage, multicenter study, where Stage 1 was a singlearm,open label design and Stage 2 was planned to be a randomized, double-blind study. However, at the end of Stage 1, the futility was met and hence the Stage 2 was not initiated.

Initially , the patients were started at BEZ235 400mg bid dose regimen. The preliminary safety \& tolerability data fro first 3 patients treated at this dose showed all patients reported AEs leading to dose interruption. It was decided to decrease the dose of BEZ235 to 300mg bid dose regimen.

Participant milestones

Participant milestones
Measure
BEZ235 300 mg
Oral BEZ235 300 mg bid was investigated in stage 1 of study
BEZ235 400 mg Bid
Oral BEZ235 400 mg bid was investigated in stage 1 of study
Overall Study
STARTED
20
11
Overall Study
COMPLETED
0
0
Overall Study
NOT COMPLETED
20
11

Reasons for withdrawal

Reasons for withdrawal
Measure
BEZ235 300 mg
Oral BEZ235 300 mg bid was investigated in stage 1 of study
BEZ235 400 mg Bid
Oral BEZ235 400 mg bid was investigated in stage 1 of study
Overall Study
Adverse Event
6
5
Overall Study
Physician Decision
1
0
Overall Study
Progressive disease
12
4
Overall Study
Study terminated by sponsor
0
1
Overall Study
Subject/guardian decision
0
1
Overall Study
Death
1
0

Baseline Characteristics

BEZ235 Phase II Trial in Patients With Advanced Pancreatic Neuroendocrine Tumors (pNET) After Failure of mTOR Inhibitor Therapy.

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
BEZ235 300 mg/400 mg Bid
n=31 Participants
Oral BEZ235 300 mg/400 mg bid was investigated in stage 1 of study
Age, Continuous
60.1 Years
STANDARD_DEVIATION 11.4 • n=5 Participants
Sex: Female, Male
Female
13 Participants
n=5 Participants
Sex: Female, Male
Male
18 Participants
n=5 Participants

PRIMARY outcome

Timeframe: 16 weeks after the first BEZ235 administration.

Population: The Full Analysis Set (FAS) comprised of all patients who received at least one dose of study treatment (Stage 1). This set was known as 'Analysis Set Stage 1' (AS1).

PFS rate at 16 weeks was defined as a binary variable. Patients were considered as 'progression free' after 16 weeks if they had an overall lesion response of complete response (CR) partial response ('PR) or stable disease (SD)' and "progressed" if they had an overall lesion response of 'Progressive disease (PD) at the scan which occurred on day 105 after start of treatment, or later. Patients whose 16 weeks tumor assessment was unknown, missing or outside the window was not considered as 'progression free' and was considered a "failure" and counted only in the denominator for the estimation of the 16 week progression free rate.

Outcome measures

Outcome measures
Measure
BEZ235 300 mg/400 mg Bid
n=31 Participants
Oral BEZ235 300 mg/400 mg bid was investigated in stage 1 of study
Stage 1 - Progression Free Survival (PFS) Rate Analysis at 16 Weeks as Per Local Radiology Review
51.6 Percentage of participants
Interval 35.7 to 67.3

SECONDARY outcome

Timeframe: Baseline, every 8 weeks up to 31 months

Population: The Full Analysis Set (FAS) comprised of all patients who received at least one dose of study treatment (Stage 1). This set was known as 'Analysis Set Stage 1' (AS1).

Overall Response rate was defined as the proportion of patients with a best overall response of complete response or partial response, based on investigator's assessment as per RECIST criteria version 1.1. Based on futility analysis conducted at the end of stage 1, stage 2 was not initiated.

Outcome measures

Outcome measures
Measure
BEZ235 300 mg/400 mg Bid
n=31 Participants
Oral BEZ235 300 mg/400 mg bid was investigated in stage 1 of study
Stage 1- Overall Response Rate (ORR)
Partial response
0.0 Percentage of participants
Stage 1- Overall Response Rate (ORR)
Complete response
0.0 Percentage of participants

SECONDARY outcome

Timeframe: Baseline, every 8 weeks up to 31 months

Population: The Full Analysis Set (FAS) comprised of all patients who received at least one dose of study treatment (Stage 1). This set was known as 'Analysis Set Stage 1' (AS1).

Disease control rate was defined as the proportion of patients with a best overall response of Complete Response, Partial response, or Stable disease, based on the investigator's assessment per RECIST version 1.1. Based on futility analysis conducted at the end of stage 1, stage 2 was not initiated.

Outcome measures

Outcome measures
Measure
BEZ235 300 mg/400 mg Bid
n=31 Participants
Oral BEZ235 300 mg/400 mg bid was investigated in stage 1 of study
Stage 1 - Disease Control Rate
71.0 Percentage of participants
Interval 54.8 to 83.9

Adverse Events

BEZ235 300 mg Bid

Serious events: 8 serious events
Other events: 20 other events
Deaths: 0 deaths

BEZ235 400 mg Bid

Serious events: 5 serious events
Other events: 11 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
BEZ235 300 mg Bid
n=20 participants at risk
BEZ235 300 mg bid
BEZ235 400 mg Bid
n=11 participants at risk
BEZ235 400 mg bid
Blood and lymphatic system disorders
ANAEMIA
5.0%
1/20
0.00%
0/11
Cardiac disorders
CARDIAC ARREST
5.0%
1/20
0.00%
0/11
Cardiac disorders
LEFT VENTRICULAR HYPERTROPHY
0.00%
0/20
9.1%
1/11
Cardiac disorders
SYSTOLIC DYSFUNCTION
0.00%
0/20
9.1%
1/11
Gastrointestinal disorders
ABDOMINAL PAIN
10.0%
2/20
0.00%
0/11
Gastrointestinal disorders
CONSTIPATION
0.00%
0/20
9.1%
1/11
Gastrointestinal disorders
DIARRHOEA
0.00%
0/20
9.1%
1/11
Gastrointestinal disorders
VOMITING
5.0%
1/20
0.00%
0/11
General disorders
PYREXIA
5.0%
1/20
0.00%
0/11
Hepatobiliary disorders
CHOLESTASIS
0.00%
0/20
9.1%
1/11
Hepatobiliary disorders
HEPATIC PAIN
0.00%
0/20
9.1%
1/11
Infections and infestations
ERYSIPELAS
5.0%
1/20
0.00%
0/11
Infections and infestations
INFECTION
5.0%
1/20
0.00%
0/11
Infections and infestations
SEPSIS
10.0%
2/20
0.00%
0/11
Infections and infestations
STAPHYLOCOCCAL INFECTION
5.0%
1/20
0.00%
0/11
Metabolism and nutrition disorders
HYPONATRAEMIA
5.0%
1/20
0.00%
0/11
Musculoskeletal and connective tissue disorders
SPINAL COLUMN STENOSIS
5.0%
1/20
0.00%
0/11
Nervous system disorders
SPINAL CORD COMPRESSION
0.00%
0/20
9.1%
1/11

Other adverse events

Other adverse events
Measure
BEZ235 300 mg Bid
n=20 participants at risk
BEZ235 300 mg bid
BEZ235 400 mg Bid
n=11 participants at risk
BEZ235 400 mg bid
Blood and lymphatic system disorders
ANAEMIA
0.00%
0/20
9.1%
1/11
Blood and lymphatic system disorders
LYMPHOPENIA
5.0%
1/20
0.00%
0/11
Blood and lymphatic system disorders
NEUTROPENIA
0.00%
0/20
18.2%
2/11
Blood and lymphatic system disorders
THROMBOCYTOPENIA
0.00%
0/20
9.1%
1/11
Cardiac disorders
ATRIAL FIBRILLATION
5.0%
1/20
0.00%
0/11
Cardiac disorders
CARDIAC FAILURE
5.0%
1/20
0.00%
0/11
Cardiac disorders
PALPITATIONS
0.00%
0/20
9.1%
1/11
Ear and labyrinth disorders
VERTIGO
0.00%
0/20
9.1%
1/11
Gastrointestinal disorders
ABDOMINAL DISTENSION
10.0%
2/20
0.00%
0/11
Gastrointestinal disorders
ABDOMINAL PAIN
30.0%
6/20
18.2%
2/11
Gastrointestinal disorders
ABDOMINAL PAIN UPPER
10.0%
2/20
36.4%
4/11
Gastrointestinal disorders
ANAL FISSURE
0.00%
0/20
9.1%
1/11
Gastrointestinal disorders
ASCITES
5.0%
1/20
0.00%
0/11
Gastrointestinal disorders
CHEILITIS
0.00%
0/20
9.1%
1/11
Gastrointestinal disorders
CONSTIPATION
20.0%
4/20
9.1%
1/11
Gastrointestinal disorders
DIARRHOEA
80.0%
16/20
54.5%
6/11
Gastrointestinal disorders
DRY MOUTH
10.0%
2/20
9.1%
1/11
Gastrointestinal disorders
DYSPEPSIA
10.0%
2/20
18.2%
2/11
Gastrointestinal disorders
GASTROINTESTINAL MOTILITY DISORDER
0.00%
0/20
9.1%
1/11
Gastrointestinal disorders
GASTROOESOPHAGEAL REFLUX DISEASE
5.0%
1/20
0.00%
0/11
Gastrointestinal disorders
HAEMORRHOIDS
5.0%
1/20
0.00%
0/11
Gastrointestinal disorders
MELAENA
5.0%
1/20
0.00%
0/11
Gastrointestinal disorders
NAUSEA
45.0%
9/20
54.5%
6/11
Gastrointestinal disorders
OESOPHAGITIS
5.0%
1/20
18.2%
2/11
Gastrointestinal disorders
PROCTALGIA
0.00%
0/20
9.1%
1/11
Gastrointestinal disorders
STOMATITIS
30.0%
6/20
45.5%
5/11
Gastrointestinal disorders
TOOTH DISCOLOURATION
0.00%
0/20
9.1%
1/11
Gastrointestinal disorders
VOMITING
30.0%
6/20
36.4%
4/11
General disorders
ASTHENIA
20.0%
4/20
27.3%
3/11
General disorders
FACE OEDEMA
5.0%
1/20
0.00%
0/11
General disorders
FATIGUE
35.0%
7/20
27.3%
3/11
General disorders
INFLUENZA LIKE ILLNESS
10.0%
2/20
0.00%
0/11
General disorders
NON-CARDIAC CHEST PAIN
5.0%
1/20
18.2%
2/11
General disorders
OEDEMA
0.00%
0/20
9.1%
1/11
General disorders
OEDEMA PERIPHERAL
20.0%
4/20
27.3%
3/11
General disorders
PAIN
0.00%
0/20
9.1%
1/11
General disorders
PYREXIA
20.0%
4/20
9.1%
1/11
Hepatobiliary disorders
HEPATIC FUNCTION ABNORMAL
0.00%
0/20
9.1%
1/11
Hepatobiliary disorders
HEPATIC PAIN
10.0%
2/20
9.1%
1/11
Hepatobiliary disorders
HYPERTRANSAMINASAEMIA
0.00%
0/20
18.2%
2/11
Hepatobiliary disorders
PORTAL VEIN THROMBOSIS
5.0%
1/20
0.00%
0/11
Immune system disorders
HYPERSENSITIVITY
5.0%
1/20
0.00%
0/11
Infections and infestations
BRONCHITIS
10.0%
2/20
0.00%
0/11
Infections and infestations
CONJUNCTIVITIS
0.00%
0/20
9.1%
1/11
Infections and infestations
FOLLICULITIS
5.0%
1/20
0.00%
0/11
Infections and infestations
GASTROINTESTINAL INFECTION
5.0%
1/20
0.00%
0/11
Infections and infestations
GINGIVITIS
0.00%
0/20
9.1%
1/11
Infections and infestations
INFLUENZA
0.00%
0/20
9.1%
1/11
Infections and infestations
NASOPHARYNGITIS
5.0%
1/20
0.00%
0/11
Infections and infestations
ORAL CANDIDIASIS
0.00%
0/20
9.1%
1/11
Infections and infestations
ORAL HERPES
5.0%
1/20
18.2%
2/11
Infections and infestations
PARONYCHIA
5.0%
1/20
0.00%
0/11
Infections and infestations
PHARYNGITIS
0.00%
0/20
9.1%
1/11
Infections and infestations
RHINITIS
5.0%
1/20
0.00%
0/11
Infections and infestations
SUBCUTANEOUS ABSCESS
5.0%
1/20
0.00%
0/11
Infections and infestations
URINARY TRACT INFECTION
5.0%
1/20
0.00%
0/11
Infections and infestations
VULVOVAGINAL CANDIDIASIS
0.00%
0/20
9.1%
1/11
Injury, poisoning and procedural complications
CONTRAST MEDIA REACTION
5.0%
1/20
0.00%
0/11
Injury, poisoning and procedural complications
SPINAL COMPRESSION FRACTURE
5.0%
1/20
0.00%
0/11
Investigations
ALANINE AMINOTRANSFERASE INCREASED
10.0%
2/20
0.00%
0/11
Investigations
ASPARTATE AMINOTRANSFERASE INCREASED
10.0%
2/20
0.00%
0/11
Investigations
BLOOD ALKALINE PHOSPHATASE INCREASED
5.0%
1/20
0.00%
0/11
Investigations
BLOOD BILIRUBIN INCREASED
0.00%
0/20
9.1%
1/11
Investigations
BLOOD CHLORIDE DECREASED
5.0%
1/20
0.00%
0/11
Investigations
BLOOD CREATININE INCREASED
5.0%
1/20
9.1%
1/11
Investigations
BLOOD IRON DECREASED
5.0%
1/20
0.00%
0/11
Investigations
BLOOD LACTATE DEHYDROGENASE INCREASED
5.0%
1/20
0.00%
0/11
Investigations
BLOOD POTASSIUM INCREASED
5.0%
1/20
0.00%
0/11
Investigations
C-REACTIVE PROTEIN INCREASED
5.0%
1/20
0.00%
0/11
Investigations
EJECTION FRACTION DECREASED
5.0%
1/20
0.00%
0/11
Investigations
ELECTROCARDIOGRAM QT PROLONGED
5.0%
1/20
0.00%
0/11
Investigations
GAMMA-GLUTAMYLTRANSFERASE INCREASED
15.0%
3/20
18.2%
2/11
Investigations
HEPATIC ENZYME INCREASED
0.00%
0/20
9.1%
1/11
Investigations
LIVER FUNCTION TEST ABNORMAL
5.0%
1/20
0.00%
0/11
Investigations
NEUTROPHIL COUNT INCREASED
5.0%
1/20
0.00%
0/11
Investigations
PLATELET COUNT DECREASED
5.0%
1/20
0.00%
0/11
Investigations
WEIGHT DECREASED
10.0%
2/20
18.2%
2/11
Investigations
WHITE BLOOD CELLS URINE
0.00%
0/20
9.1%
1/11
Metabolism and nutrition disorders
DECREASED APPETITE
30.0%
6/20
18.2%
2/11
Metabolism and nutrition disorders
HYPERCALCAEMIA
5.0%
1/20
0.00%
0/11
Metabolism and nutrition disorders
HYPERCHOLESTEROLAEMIA
0.00%
0/20
9.1%
1/11
Metabolism and nutrition disorders
HYPERGLYCAEMIA
35.0%
7/20
36.4%
4/11
Metabolism and nutrition disorders
HYPERKALAEMIA
5.0%
1/20
0.00%
0/11
Metabolism and nutrition disorders
HYPOGLYCAEMIA
10.0%
2/20
9.1%
1/11
Metabolism and nutrition disorders
HYPONATRAEMIA
5.0%
1/20
0.00%
0/11
Musculoskeletal and connective tissue disorders
ARTHRALGIA
5.0%
1/20
27.3%
3/11
Musculoskeletal and connective tissue disorders
BACK PAIN
5.0%
1/20
9.1%
1/11
Musculoskeletal and connective tissue disorders
FLANK PAIN
15.0%
3/20
0.00%
0/11
Musculoskeletal and connective tissue disorders
JOINT SWELLING
5.0%
1/20
9.1%
1/11
Musculoskeletal and connective tissue disorders
MUSCLE ATROPHY
5.0%
1/20
0.00%
0/11
Musculoskeletal and connective tissue disorders
MUSCLE SPASMS
10.0%
2/20
9.1%
1/11
Musculoskeletal and connective tissue disorders
MUSCULAR WEAKNESS
5.0%
1/20
9.1%
1/11
Musculoskeletal and connective tissue disorders
MUSCULOSKELETAL CHEST PAIN
5.0%
1/20
0.00%
0/11
Musculoskeletal and connective tissue disorders
MUSCULOSKELETAL PAIN
15.0%
3/20
9.1%
1/11
Musculoskeletal and connective tissue disorders
MYALGIA
10.0%
2/20
0.00%
0/11
Musculoskeletal and connective tissue disorders
NECK PAIN
5.0%
1/20
0.00%
0/11
Musculoskeletal and connective tissue disorders
PAIN IN EXTREMITY
5.0%
1/20
0.00%
0/11
Nervous system disorders
DIZZINESS
5.0%
1/20
0.00%
0/11
Nervous system disorders
DYSGEUSIA
0.00%
0/20
9.1%
1/11
Nervous system disorders
HEADACHE
5.0%
1/20
0.00%
0/11
Nervous system disorders
LETHARGY
0.00%
0/20
18.2%
2/11
Nervous system disorders
LOSS OF CONSCIOUSNESS
0.00%
0/20
9.1%
1/11
Nervous system disorders
MIGRAINE
5.0%
1/20
0.00%
0/11
Nervous system disorders
PARAESTHESIA
0.00%
0/20
9.1%
1/11
Nervous system disorders
TREMOR
5.0%
1/20
9.1%
1/11
Psychiatric disorders
AGITATION
0.00%
0/20
9.1%
1/11
Psychiatric disorders
DEPRESSED MOOD
0.00%
0/20
9.1%
1/11
Psychiatric disorders
DEPRESSION
5.0%
1/20
0.00%
0/11
Psychiatric disorders
HALLUCINATION
0.00%
0/20
9.1%
1/11
Psychiatric disorders
INSOMNIA
5.0%
1/20
9.1%
1/11
Renal and urinary disorders
ACUTE KIDNEY INJURY
5.0%
1/20
0.00%
0/11
Renal and urinary disorders
DYSURIA
5.0%
1/20
0.00%
0/11
Renal and urinary disorders
POLLAKIURIA
0.00%
0/20
9.1%
1/11
Reproductive system and breast disorders
BENIGN PROSTATIC HYPERPLASIA
5.0%
1/20
0.00%
0/11
Reproductive system and breast disorders
SCROTAL PAIN
5.0%
1/20
0.00%
0/11
Reproductive system and breast disorders
VAGINAL DISCHARGE
0.00%
0/20
9.1%
1/11
Reproductive system and breast disorders
VULVOVAGINAL DRYNESS
0.00%
0/20
9.1%
1/11
Respiratory, thoracic and mediastinal disorders
CATARRH
0.00%
0/20
9.1%
1/11
Respiratory, thoracic and mediastinal disorders
DYSPNOEA
30.0%
6/20
9.1%
1/11
Respiratory, thoracic and mediastinal disorders
EPISTAXIS
5.0%
1/20
18.2%
2/11
Respiratory, thoracic and mediastinal disorders
HICCUPS
0.00%
0/20
9.1%
1/11
Respiratory, thoracic and mediastinal disorders
NASAL CONGESTION
5.0%
1/20
0.00%
0/11
Respiratory, thoracic and mediastinal disorders
OROPHARYNGEAL PAIN
5.0%
1/20
0.00%
0/11
Respiratory, thoracic and mediastinal disorders
RHINORRHOEA
5.0%
1/20
9.1%
1/11
Respiratory, thoracic and mediastinal disorders
SNEEZING
0.00%
0/20
9.1%
1/11
Respiratory, thoracic and mediastinal disorders
THROAT IRRITATION
0.00%
0/20
9.1%
1/11
Skin and subcutaneous tissue disorders
ALOPECIA
5.0%
1/20
0.00%
0/11
Skin and subcutaneous tissue disorders
DRY SKIN
15.0%
3/20
0.00%
0/11
Skin and subcutaneous tissue disorders
HAND DERMATITIS
5.0%
1/20
0.00%
0/11
Skin and subcutaneous tissue disorders
HYPERHIDROSIS
5.0%
1/20
0.00%
0/11
Skin and subcutaneous tissue disorders
NAIL DISORDER
5.0%
1/20
0.00%
0/11
Skin and subcutaneous tissue disorders
NAIL TOXICITY
5.0%
1/20
0.00%
0/11
Skin and subcutaneous tissue disorders
NIGHT SWEATS
5.0%
1/20
0.00%
0/11
Skin and subcutaneous tissue disorders
PAIN OF SKIN
5.0%
1/20
0.00%
0/11
Skin and subcutaneous tissue disorders
PHOTOSENSITIVITY REACTION
0.00%
0/20
9.1%
1/11
Skin and subcutaneous tissue disorders
PRURITUS
5.0%
1/20
18.2%
2/11
Skin and subcutaneous tissue disorders
RASH
10.0%
2/20
27.3%
3/11
Skin and subcutaneous tissue disorders
ROSACEA
0.00%
0/20
9.1%
1/11
Skin and subcutaneous tissue disorders
SKIN FISSURES
0.00%
0/20
9.1%
1/11
Vascular disorders
FLUSHING
0.00%
0/20
9.1%
1/11
Vascular disorders
HOT FLUSH
0.00%
0/20
9.1%
1/11
Vascular disorders
HYPERTENSION
15.0%
3/20
0.00%
0/11

Additional Information

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