Trial Outcomes & Findings for A Study of HBI-8000 (Tucidinostat) With Pembrolizumab in Non-Small Cell Lung Cancer (NCT NCT05141357)

NCT ID: NCT05141357

Last Updated: 2025-12-24

Results Overview

Number of participants experiencing treatment-emergent adverse events (TEAEs) graded according to the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI-CTCAE) v5.0

Recruitment status

TERMINATED

Study phase

PHASE2

Target enrollment

5 participants

Primary outcome timeframe

From the start of treatment until 30 days after the last dose of HBI-8000, up to approximately 13 months

Results posted on

2025-12-24

Participant Flow

This was a multicenter (9 sites in the US: hospital, regional medical, and research centers), open label, Phase 2 study of HBI 8000 in combination with an approved dose of pembrolizumab as a first line checkpoint inhibitor therapy for advanced or metastatic non-small cell lung cancer (NSCLC). Recruitment was from 15Feb 2022 to 01Sep2022. In December 2022, enrollment was suspended.

Subjects had to satisfy screening criteria prior to treatment with HBI-8000 + Pembrolizumab. The screening period could be up to 28 days and was comprised of assessing medical history, concomitant therapies, clinical laboratory testing, and other clinical assessments to document the subject met all inclusion criteria and none of the exclusion criteria.

Participant milestones

Participant milestones
Measure
HBI-8000 in Combination With Pembrolizumab
HBI-8000 in combination with pembrolizumab: Participants will take 30 mg of HBI-8000 by mouth every 3-4 days on a twice weekly (BIW) schedule. Pembrolizumab was administered at 400 mg IV every 6 weeks (Q6W) or 200 mg IV every 3 weeks (Q3W) according to Prescribing Information and institution's prescribing practice for pembrolizumab.
Overall Study
STARTED
5
Overall Study
COMPLETED
0
Overall Study
NOT COMPLETED
5

Reasons for withdrawal

Reasons for withdrawal
Measure
HBI-8000 in Combination With Pembrolizumab
HBI-8000 in combination with pembrolizumab: Participants will take 30 mg of HBI-8000 by mouth every 3-4 days on a twice weekly (BIW) schedule. Pembrolizumab was administered at 400 mg IV every 6 weeks (Q6W) or 200 mg IV every 3 weeks (Q3W) according to Prescribing Information and institution's prescribing practice for pembrolizumab.
Overall Study
Adverse Event
3
Overall Study
Lack of Efficacy
2

Baseline Characteristics

A Study of HBI-8000 (Tucidinostat) With Pembrolizumab in Non-Small Cell Lung Cancer

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
HBI-8000 in Combination With Pembrolizumab
n=5 Participants
HBI-8000 in combination with pembrolizumab: Participants will take 30 mg of HBI-8000 by mouth every 3-4 days on a twice weekly (BIW) schedule. Pembrolizumab was administered at 400 mg IV every 6 weeks (Q6W) or 200 mg IV every 3 weeks (Q3W) according to Prescribing Information and institution's prescribing practice for pembrolizumab.
Age, Categorical
<=18 years
0 Participants
n=30 Participants
Age, Categorical
Between 18 and 65 years
0 Participants
n=30 Participants
Age, Categorical
>=65 years
5 Participants
n=30 Participants
Sex: Female, Male
Female
4 Participants
n=30 Participants
Sex: Female, Male
Male
1 Participants
n=30 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
n=30 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
4 Participants
n=30 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants
n=30 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=30 Participants
Race (NIH/OMB)
Asian
0 Participants
n=30 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=30 Participants
Race (NIH/OMB)
Black or African American
1 Participants
n=30 Participants
Race (NIH/OMB)
White
4 Participants
n=30 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=30 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=30 Participants
Region of Enrollment
United States
5 participants
n=30 Participants

PRIMARY outcome

Timeframe: From the start of treatment until 30 days after the last dose of HBI-8000, up to approximately 13 months

Number of participants experiencing treatment-emergent adverse events (TEAEs) graded according to the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI-CTCAE) v5.0

Outcome measures

Outcome measures
Measure
HBI-8000 in Combination With Pembrolizumab
n=5 Participants
HBI-8000 in combination with pembrolizumab: Participants will take 30 mg of HBI-8000 by mouth every 3-4 days on a twice weekly (BIW) schedule. Pembrolizumab was administered at 400 mg IV every 6 weeks (Q6W) or 200 mg IV every 3 weeks (Q3W) according to Prescribing Information and institution's prescribing practice for pembrolizumab.
Safety and Tolerability of HBI-8000 When Administered in Combination With Standard Dose and Regimen of Pembrolizumab
Subjects experiencing TEAEs
5 Participants
Safety and Tolerability of HBI-8000 When Administered in Combination With Standard Dose and Regimen of Pembrolizumab
Subjects not experiencing TEAEs
0 Participants

Adverse Events

HBI-8000 in Combination With Pembrolizumab

Serious events: 3 serious events
Other events: 5 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
HBI-8000 in Combination With Pembrolizumab
n=5 participants at risk
HBI-8000 in combination with pembrolizumab: Participants will take 30 mg of HBI-8000 by mouth every 3-4 days on a twice weekly (BIW) schedule. Pembrolizumab was administered at 400 mg IV every 6 weeks (Q6W) or 200 mg IV every 3 weeks (Q3W) according to Prescribing Information and institution's prescribing practice for pembrolizumab.
Gastrointestinal disorders
Diarrhoea
20.0%
1/5 • Up to approximately 13 months
Gastrointestinal disorders
Gastrointestinal hemorrhage
20.0%
1/5 • Up to approximately 13 months
Gastrointestinal disorders
Ileus
20.0%
1/5 • Up to approximately 13 months
Infections and infestations
COVID-19 pneumonia
20.0%
1/5 • Up to approximately 13 months
Infections and infestations
Cellulitis
20.0%
1/5 • Up to approximately 13 months
Infections and infestations
Pneumonia
20.0%
1/5 • Up to approximately 13 months
Respiratory, thoracic and mediastinal disorders
Chronic obstructive pulmonary disease
20.0%
1/5 • Up to approximately 13 months
Respiratory, thoracic and mediastinal disorders
Hypoxia
20.0%
1/5 • Up to approximately 13 months
Respiratory, thoracic and mediastinal disorders
Pleural effusion
20.0%
1/5 • Up to approximately 13 months
Vascular disorders
Hypotension
20.0%
1/5 • Up to approximately 13 months

Other adverse events

Other adverse events
Measure
HBI-8000 in Combination With Pembrolizumab
n=5 participants at risk
HBI-8000 in combination with pembrolizumab: Participants will take 30 mg of HBI-8000 by mouth every 3-4 days on a twice weekly (BIW) schedule. Pembrolizumab was administered at 400 mg IV every 6 weeks (Q6W) or 200 mg IV every 3 weeks (Q3W) according to Prescribing Information and institution's prescribing practice for pembrolizumab.
Blood and lymphatic system disorders
Anaemia
60.0%
3/5 • Up to approximately 13 months
Blood and lymphatic system disorders
Iron deficiency anemia
60.0%
3/5 • Up to approximately 13 months
Blood and lymphatic system disorders
Thrombocytopenia
60.0%
3/5 • Up to approximately 13 months
Cardiac disorders
Atrial fibrillation
20.0%
1/5 • Up to approximately 13 months
Cardiac disorders
Cardiac failure
20.0%
1/5 • Up to approximately 13 months
Cardiac disorders
Pericardial effusion
20.0%
1/5 • Up to approximately 13 months
Cardiac disorders
Sinus tachycardia
40.0%
2/5 • Up to approximately 13 months
Cardiac disorders
Tachycardia
20.0%
1/5 • Up to approximately 13 months
Ear and labyrinth disorders
Ear pain
20.0%
1/5 • Up to approximately 13 months
Ear and labyrinth disorders
Middle ear effusion
20.0%
1/5 • Up to approximately 13 months
Endocrine disorders
Hypothyroidism
20.0%
1/5 • Up to approximately 13 months
Eye disorders
Periorbital pain
20.0%
1/5 • Up to approximately 13 months
Eye disorders
Vision blurred
20.0%
1/5 • Up to approximately 13 months
Gastrointestinal disorders
Abdominal distension
20.0%
1/5 • Up to approximately 13 months
Gastrointestinal disorders
Anal incontinence
20.0%
1/5 • Up to approximately 13 months
Gastrointestinal disorders
Constipation
20.0%
1/5 • Up to approximately 13 months
Gastrointestinal disorders
Diarrhoea
80.0%
4/5 • Up to approximately 13 months
Gastrointestinal disorders
Feces discolored
20.0%
1/5 • Up to approximately 13 months
Gastrointestinal disorders
Gastrooesophageal reflux disease
20.0%
1/5 • Up to approximately 13 months
Gastrointestinal disorders
Gastrointestinal disorder
20.0%
1/5 • Up to approximately 13 months
Gastrointestinal disorders
Gastrointestinal haemorrhage
20.0%
1/5 • Up to approximately 13 months
Gastrointestinal disorders
Lip pain
20.0%
1/5 • Up to approximately 13 months
Gastrointestinal disorders
Lower gastrointestinal haemorrhage
20.0%
1/5 • Up to approximately 13 months
Gastrointestinal disorders
Mouth haemorrhage
20.0%
1/5 • Up to approximately 13 months
Gastrointestinal disorders
Nausea
60.0%
3/5 • Up to approximately 13 months
Gastrointestinal disorders
Oral lichen planus
20.0%
1/5 • Up to approximately 13 months
Gastrointestinal disorders
Vomiting
40.0%
2/5 • Up to approximately 13 months
General disorders
Asthenia
20.0%
1/5 • Up to approximately 13 months
General disorders
Fatigue
40.0%
2/5 • Up to approximately 13 months
General disorders
Non-cardiac chest pain
20.0%
1/5 • Up to approximately 13 months
General disorders
Oedema peripheral
40.0%
2/5 • Up to approximately 13 months
General disorders
Pyrexia
20.0%
1/5 • Up to approximately 13 months
Infections and infestations
COVID-19 pneumonia
20.0%
1/5 • Up to approximately 13 months
Infections and infestations
Cellulitis
20.0%
1/5 • Up to approximately 13 months
Infections and infestations
Fungal skin infection
20.0%
1/5 • Up to approximately 13 months
Infections and infestations
Otitis media
20.0%
1/5 • Up to approximately 13 months
Infections and infestations
Pneumonia
40.0%
2/5 • Up to approximately 13 months
Infections and infestations
Sinusitis
20.0%
1/5 • Up to approximately 13 months
Infections and infestations
Tooth infection
20.0%
1/5 • Up to approximately 13 months
Injury, poisoning and procedural complications
Fall
20.0%
1/5 • Up to approximately 13 months
Investigations
Amylase increased
40.0%
2/5 • Up to approximately 13 months
Investigations
Eastern Cooperative Oncology Group performance status worsened
20.0%
1/5 • Up to approximately 13 months
Investigations
Lipase increased
40.0%
2/5 • Up to approximately 13 months
Investigations
Lymphocyte count decreased
20.0%
1/5 • Up to approximately 13 months
Investigations
Platelet count decreased
40.0%
2/5 • Up to approximately 13 months
Investigations
Weight decreased
40.0%
2/5 • Up to approximately 13 months
Investigations
White blood cell count decreased
40.0%
2/5 • Up to approximately 13 months
Investigations
White blood cells urine positive
20.0%
1/5 • Up to approximately 13 months
Metabolism and nutrition disorders
Decreased appetite
80.0%
4/5 • Up to approximately 13 months
Metabolism and nutrition disorders
Dehydration
40.0%
2/5 • Up to approximately 13 months
Metabolism and nutrition disorders
Hyperglycaemia
20.0%
1/5 • Up to approximately 13 months
Metabolism and nutrition disorders
Hyperkalaemia
20.0%
1/5 • Up to approximately 13 months
Metabolism and nutrition disorders
Hypoalbuminaemia
20.0%
1/5 • Up to approximately 13 months
Metabolism and nutrition disorders
Hypokalaemia
40.0%
2/5 • Up to approximately 13 months
Metabolism and nutrition disorders
Hypomagnesaemia
20.0%
1/5 • Up to approximately 13 months
Metabolism and nutrition disorders
Hypophosphataemia
20.0%
1/5 • Up to approximately 13 months
Metabolism and nutrition disorders
Vitamin B12 deficiency
20.0%
1/5 • Up to approximately 13 months
Musculoskeletal and connective tissue disorders
Back pain
20.0%
1/5 • Up to approximately 13 months
Musculoskeletal and connective tissue disorders
Muscle spasms
20.0%
1/5 • Up to approximately 13 months
Musculoskeletal and connective tissue disorders
Musculoskeletal chest pain
40.0%
2/5 • Up to approximately 13 months
Musculoskeletal and connective tissue disorders
Myalgia
20.0%
1/5 • Up to approximately 13 months
Musculoskeletal and connective tissue disorders
Pain in extremity
20.0%
1/5 • Up to approximately 13 months
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Squamous cell carcinoma of skin
20.0%
1/5 • Up to approximately 13 months
Nervous system disorders
Dizziness
40.0%
2/5 • Up to approximately 13 months
Nervous system disorders
Nerve compression
20.0%
1/5 • Up to approximately 13 months
Psychiatric disorders
Insomnia
20.0%
1/5 • Up to approximately 13 months
Renal and urinary disorders
Haematuria
20.0%
1/5 • Up to approximately 13 months
Reproductive system and breast disorders
Vaginal haemorrhage
20.0%
1/5 • Up to approximately 13 months
Respiratory, thoracic and mediastinal disorders
Chronic obstructive pulmonary disease
20.0%
1/5 • Up to approximately 13 months
Respiratory, thoracic and mediastinal disorders
Cough
40.0%
2/5 • Up to approximately 13 months
Respiratory, thoracic and mediastinal disorders
Dyspnoea
40.0%
2/5 • Up to approximately 13 months
Respiratory, thoracic and mediastinal disorders
Dyspnoea exertional
20.0%
1/5 • Up to approximately 13 months
Respiratory, thoracic and mediastinal disorders
Nasal congestion
20.0%
1/5 • Up to approximately 13 months
Respiratory, thoracic and mediastinal disorders
Oropharyngeal pain
20.0%
1/5 • Up to approximately 13 months
Respiratory, thoracic and mediastinal disorders
Pleural effusion
20.0%
1/5 • Up to approximately 13 months
Respiratory, thoracic and mediastinal disorders
Rales
20.0%
1/5 • Up to approximately 13 months
Respiratory, thoracic and mediastinal disorders
Wheezing
20.0%
1/5 • Up to approximately 13 months
Skin and subcutaneous tissue disorders
Lichen planus
20.0%
1/5 • Up to approximately 13 months
Skin and subcutaneous tissue disorders
Pruritus
40.0%
2/5 • Up to approximately 13 months
Skin and subcutaneous tissue disorders
Urticaria
20.0%
1/5 • Up to approximately 13 months
Vascular disorders
Hypotension
20.0%
1/5 • Up to approximately 13 months

Additional Information

Chief Medical Officer

HUYABIO International

Phone: (858) 798-8800

Results disclosure agreements

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

Restriction type: OTHER