Trial Outcomes & Findings for Investigating the Safety and Efficacy of Rituximab and Pembrolizumab in Relapsed/Refractory Waldenström's Macroglobulinaemia (NCT NCT03630042)

NCT ID: NCT03630042

Last Updated: 2024-11-07

Results Overview

The primary outcome is the percentage of patients achieving at least a major response rate at 24 weeks post commencing treatment. A major response rate is defined as a greater than 50% reduction in paraprotein measurement - this is in line with international recognised response criteria for the disease under investigation. In this single arm study all patients receiving treatment were considered applicable for endpoint analysis. There is no comparison as there is only one arm.

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

17 participants

Primary outcome timeframe

24 weeks

Results posted on

2024-11-07

Participant Flow

Participant milestones

Participant milestones
Measure
Pembrolizumab and Rituximab
Pembrolizumab: 200 mg IV dose given on day 1 of a three week cycle Rituximab: 375 mg/m2 IV dose given up to 8 times in the trial
Overall Study
STARTED
17
Overall Study
COMPLETED
17
Overall Study
NOT COMPLETED
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Race and Ethnicity were not collected from any participant.

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Pembrolizumab and Rituximab
n=17 Participants
Pembrolizumab: 200 mg IV dose given on day 1 of a three week cycle Rituximab: 375 mg/m2 IV dose given up to 8 times in the trial
Age, Continuous
70.4 years
n=17 Participants
Sex: Female, Male
Female
3 Participants
n=17 Participants
Sex: Female, Male
Male
14 Participants
n=17 Participants
ECOG Performance Status
ECOG 0
9 Participants
n=17 Participants
ECOG Performance Status
ECOG 1
7 Participants
n=17 Participants
ECOG Performance Status
ECOG 2
1 Participants
n=17 Participants

PRIMARY outcome

Timeframe: 24 weeks

The primary outcome is the percentage of patients achieving at least a major response rate at 24 weeks post commencing treatment. A major response rate is defined as a greater than 50% reduction in paraprotein measurement - this is in line with international recognised response criteria for the disease under investigation. In this single arm study all patients receiving treatment were considered applicable for endpoint analysis. There is no comparison as there is only one arm.

Outcome measures

Outcome measures
Measure
Pembrolizumab and Rituximab
n=17 Participants
Pembrolizumab: 200 mg IV dose given on day 1 of a three week cycle Rituximab: 375 mg/m2 IV dose given up to 8 times in the trial
Percentage of Patients Achieving at Least a Major Response Rate at 24 Weeks Post Commencing Treatment
8 Participants

SECONDARY outcome

Timeframe: until 5 months post last IMP administration

As assessed by the number and grade of serious and non-serious adverse events, graded according to CTCAE v5.0

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: 24 weeks

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: 24 weeks

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: Assessed at 12 weeks, 24 weeks and 1 year after commencing treatment

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: Assessed once per year after completing treatment (average of 1 year)

as determined by the time from registration to the next line of therapy

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: 1 and 2 years post commencing treatment

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: 1 and 2 years post commencing treatment

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: 24 weeks

Change in quality of life (QoL) at 24 weeks post commencing treatment as assessed by EORTC QLQ-C30 questionnaire. Daily activities and thoughts/feelings experienced by the patient over the week preceding questionnaire completion are graded on a scale from '1-not at all' to '4-very much'. Also rating of overall health and quality of life from '1-very poor' to '7-excellent'

Outcome measures

Outcome data not reported

Adverse Events

Pembrolizumab and Rituximab

Serious events: 10 serious events
Other events: 17 other events
Deaths: 5 deaths

Serious adverse events

Serious adverse events
Measure
Pembrolizumab and Rituximab
n=17 participants at risk
Pembrolizumab: 200 mg IV dose given on day 1 of a three week cycle Rituximab: 375 mg/m2 IV dose given up to 8 times in the trial
General disorders
Fatigue
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
General disorders
Fever
17.6%
3/17 • Between informed consent and 5 months post last IMP administration.
Infections and infestations
Covid-19
11.8%
2/17 • Between informed consent and 5 months post last IMP administration.
Infections and infestations
Infection (unknown origin)
11.8%
2/17 • Between informed consent and 5 months post last IMP administration.
Reproductive system and breast disorders
Lung infection
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Injury, poisoning and procedural complications
Infusion related reaction
11.8%
2/17 • Between informed consent and 5 months post last IMP administration.
Injury, poisoning and procedural complications
Vaccination complication
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Investigations
Creatinine increased
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Investigations
Neutrophil count decreased
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Nervous system disorders
Stroke
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Nervous system disorders
Syncope
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Respiratory, thoracic and mediastinal disorders
Dyspnea
11.8%
2/17 • Between informed consent and 5 months post last IMP administration.
Respiratory, thoracic and mediastinal disorders
Cough
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Respiratory, thoracic and mediastinal disorders
Pleural effusion
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Respiratory, thoracic and mediastinal disorders
Respiratory failure
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Skin and subcutaneous tissue disorders
Rash maculo-papular
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.

Other adverse events

Other adverse events
Measure
Pembrolizumab and Rituximab
n=17 participants at risk
Pembrolizumab: 200 mg IV dose given on day 1 of a three week cycle Rituximab: 375 mg/m2 IV dose given up to 8 times in the trial
Investigations
Platelet count decreased
11.8%
2/17 • Between informed consent and 5 months post last IMP administration.
Investigations
Weight loss
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Investigations
Creatinine increased
29.4%
5/17 • Between informed consent and 5 months post last IMP administration.
Investigations
White blood cell decreased
23.5%
4/17 • Between informed consent and 5 months post last IMP administration.
Investigations
Blood bicarbonate decreased
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Investigations
Aspartate aminotransferase increased
11.8%
2/17 • Between informed consent and 5 months post last IMP administration.
Investigations
Alanine aminotransferase increased
11.8%
2/17 • Between informed consent and 5 months post last IMP administration.
Investigations
Lymphocyte count decreased
23.5%
4/17 • Between informed consent and 5 months post last IMP administration.
Investigations
Serum amylase increased
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Investigations
Neutrophil count decreased
23.5%
4/17 • Between informed consent and 5 months post last IMP administration.
Investigations
Thyroid stimulating hormone increased
11.8%
2/17 • Between informed consent and 5 months post last IMP administration.
Investigations
White blood cell increased
11.8%
2/17 • Between informed consent and 5 months post last IMP administration.
Investigations
Platelet count increased
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Investigations
Increased neutrophils
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Metabolism and nutrition disorders
Hypercalcemia
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Metabolism and nutrition disorders
Hyperuricemia
11.8%
2/17 • Between informed consent and 5 months post last IMP administration.
Metabolism and nutrition disorders
Hypoalbuminemia
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Metabolism and nutrition disorders
Hyperkalemia
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Metabolism and nutrition disorders
Hypocalcemia
11.8%
2/17 • Between informed consent and 5 months post last IMP administration.
Metabolism and nutrition disorders
Hyponatremia
17.6%
3/17 • Between informed consent and 5 months post last IMP administration.
Metabolism and nutrition disorders
Iron deficiency
17.6%
3/17 • Between informed consent and 5 months post last IMP administration.
Musculoskeletal and connective tissue disorders
Pain in extremity
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Musculoskeletal and connective tissue disorders
Muscle cramp
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Musculoskeletal and connective tissue disorders
Myalgia
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Musculoskeletal and connective tissue disorders
Flank pain
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Musculoskeletal and connective tissue disorders
Back pain
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Musculoskeletal and connective tissue disorders
Polymylagia rheumatica
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Excision of basal cell carcinoma
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Malignant melanoma trunk
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Nervous system disorders
Dizziness
23.5%
4/17 • Between informed consent and 5 months post last IMP administration.
Nervous system disorders
Headache
17.6%
3/17 • Between informed consent and 5 months post last IMP administration.
Nervous system disorders
Paresthesia
11.8%
2/17 • Between informed consent and 5 months post last IMP administration.
Nervous system disorders
Stroke
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Nervous system disorders
Memory impairment
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Nervous system disorders
Syncope
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Nervous system disorders
Peripheral neuropathy
11.8%
2/17 • Between informed consent and 5 months post last IMP administration.
Nervous system disorders
Sciatica pain (right leg)
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Renal and urinary disorders
Urinary frequency
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Renal and urinary disorders
Dysuria
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Renal and urinary disorders
Chronic kidney disease
11.8%
2/17 • Between informed consent and 5 months post last IMP administration.
Respiratory, thoracic and mediastinal disorders
Pleural effusion
11.8%
2/17 • Between informed consent and 5 months post last IMP administration.
Respiratory, thoracic and mediastinal disorders
Cough
17.6%
3/17 • Between informed consent and 5 months post last IMP administration.
Respiratory, thoracic and mediastinal disorders
Dyspnea
11.8%
2/17 • Between informed consent and 5 months post last IMP administration.
Respiratory, thoracic and mediastinal disorders
Stridor
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Respiratory, thoracic and mediastinal disorders
Other/hemoptysis
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Skin and subcutaneous tissue disorders
Pruritus
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Skin and subcutaneous tissue disorders
Hyperhidrosis
17.6%
3/17 • Between informed consent and 5 months post last IMP administration.
Skin and subcutaneous tissue disorders
Rash acneiform
17.6%
3/17 • Between informed consent and 5 months post last IMP administration.
Skin and subcutaneous tissue disorders
Rash maculo-papular
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Vascular disorders
Hypotension
23.5%
4/17 • Between informed consent and 5 months post last IMP administration.
Vascular disorders
Flushing
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Skin and subcutaneous tissue disorders
Skin lesion (forehead)
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Blood and lymphatic system disorders
Neutropenia
11.8%
2/17 • Between informed consent and 5 months post last IMP administration.
Blood and lymphatic system disorders
Anemia
47.1%
8/17 • Between informed consent and 5 months post last IMP administration.
Blood and lymphatic system disorders
Folate deficiency
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Cardiac disorders
Atrial fibrillation
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Cardiac disorders
Sinus tachycardia
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Cardiac disorders
Atrioventricular block first degree
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Cardiac disorders
Palpitations
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Cardiac disorders
Ventricular arrhythmia
11.8%
2/17 • Between informed consent and 5 months post last IMP administration.
Cardiac disorders
Heart failure with preserved ejection fraction
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Ear and labyrinth disorders
Tinnitus
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Endocrine disorders
Adrenal insufficiency
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Eye disorders
Blurred vision
11.8%
2/17 • Between informed consent and 5 months post last IMP administration.
Gastrointestinal disorders
Dry mouth
11.8%
2/17 • Between informed consent and 5 months post last IMP administration.
Gastrointestinal disorders
Hemorrhoids
11.8%
2/17 • Between informed consent and 5 months post last IMP administration.
Gastrointestinal disorders
Constipation
11.8%
2/17 • Between informed consent and 5 months post last IMP administration.
Gastrointestinal disorders
Diarrhea
11.8%
2/17 • Between informed consent and 5 months post last IMP administration.
Gastrointestinal disorders
Nausea
11.8%
2/17 • Between informed consent and 5 months post last IMP administration.
Gastrointestinal disorders
Abdominal pain
11.8%
2/17 • Between informed consent and 5 months post last IMP administration.
Gastrointestinal disorders
Dyspepsia
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Gastrointestinal disorders
Loose stools
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Gastrointestinal disorders
Mouth ulcer
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
General disorders
Chills
11.8%
2/17 • Between informed consent and 5 months post last IMP administration.
General disorders
Localized edema
11.8%
2/17 • Between informed consent and 5 months post last IMP administration.
General disorders
Fever
35.3%
6/17 • Between informed consent and 5 months post last IMP administration.
General disorders
Facial pain
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
General disorders
Fatigue
29.4%
5/17 • Between informed consent and 5 months post last IMP administration.
General disorders
Shoulder pain
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
General disorders
Intermittent pain in fingers
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Infections and infestations
Lymph gland infection
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Infections and infestations
Lung infection
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Infections and infestations
Thrush
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Infections and infestations
Infection
11.8%
2/17 • Between informed consent and 5 months post last IMP administration.
Infections and infestations
covid-19
11.8%
2/17 • Between informed consent and 5 months post last IMP administration.
Infections and infestations
chest infection
5.9%
1/17 • Between informed consent and 5 months post last IMP administration.
Injury, poisoning and procedural complications
Infusion related reaction
41.2%
7/17 • Between informed consent and 5 months post last IMP administration.

Additional Information

Jaimal Kothari

Oxford University Hospital NHS Trust

Phone: NA

Results disclosure agreements

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