Trial Outcomes & Findings for Sotatercept in Treating Patients With Myeloproliferative Neoplasm-Associated Myelofibrosis or Anemia (NCT NCT01712308)

NCT ID: NCT01712308

Last Updated: 2023-10-10

Results Overview

Defined as an increase in hemoglobin level equal to or greater than 1.5 g/L without red blood cell-transfusion OR becoming red blood cell-transfusion-independent in a patient who is red blood cell-transfusion-dependent. Will be based on the intent-to-treat principle.

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

56 participants

Primary outcome timeframe

Up to 84 days

Results posted on

2023-10-10

Participant Flow

Participant milestones

Participant milestones
Measure
Treatment Monotherapy (Sotatercept)
Patients receive sotatercept SC once every 3 weeks. Cycles repeat every 3 weeks in the absence of disease progression or unacceptable toxicity. Patients unable to achieve anemia-response after 8 cycles will be taken off study. Sotatercept: Given SC
Treatment Combination (Ruxolitinib + Sotatercept)
patients that are already on therapy with ruxolitinib (for at least for 6 months, and on stable dose for last 2 months) will continue ruxolitinib in addition to sotatercept SC once every 3 weeks. Cycles repeat every 3 weeks in the absence of disease progression or unacceptable toxicity. Patients unable to achieve anemia-response after 8 cycles will be taken off study. Sotatercept: Given SC Ruxolitinib
Overall Study
STARTED
35
21
Overall Study
COMPLETED
35
21
Overall Study
NOT COMPLETED
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Sotatercept in Treating Patients With Myeloproliferative Neoplasm-Associated Myelofibrosis or Anemia

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Treatment Monotherapy (Sotatercept)
n=35 Participants
Patients receive sotatercept SC once every 3 weeks. Cycles repeat every 3 weeks in the absence of disease progression or unacceptable toxicity. Patients unable to achieve anemia-response after 8 cycles will be taken off study. Sotatercept: Given SC
Treatment Combination (Ruxolitinib + Sotatercept)
n=21 Participants
patients that are already on therapy with ruxolitinib (for at least for 6 months, and on stable dose for last 2 months) will continue ruxolitinib in addition to sotatercept SC once every 3 weeks. Cycles repeat every 3 weeks in the absence of disease progression or unacceptable toxicity. Patients unable to achieve anemia-response after 8 cycles will be taken off study. Sotatercept: Given SC Ruxolitinib
Total
n=56 Participants
Total of all reporting groups
Age, Categorical
<=18 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Age, Categorical
Between 18 and 65 years
14 Participants
n=5 Participants
4 Participants
n=7 Participants
18 Participants
n=5 Participants
Age, Categorical
>=65 years
21 Participants
n=5 Participants
17 Participants
n=7 Participants
38 Participants
n=5 Participants
Age, Continuous
66 years
n=5 Participants
71 years
n=7 Participants
67 years
n=5 Participants
Sex: Female, Male
Female
14 Participants
n=5 Participants
7 Participants
n=7 Participants
21 Participants
n=5 Participants
Sex: Female, Male
Male
21 Participants
n=5 Participants
14 Participants
n=7 Participants
35 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
1 Participants
n=5 Participants
2 Participants
n=7 Participants
3 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
4 Participants
n=5 Participants
2 Participants
n=7 Participants
6 Participants
n=5 Participants
Race (NIH/OMB)
White
29 Participants
n=5 Participants
14 Participants
n=7 Participants
43 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants
n=5 Participants
3 Participants
n=7 Participants
4 Participants
n=5 Participants
Region of Enrollment
United States
35 participants
n=5 Participants
21 participants
n=7 Participants
56 participants
n=5 Participants

PRIMARY outcome

Timeframe: Up to 84 days

Population: Of the 35 participants on the monotherapy arm, 27 were evaluable for response. Of the 21 participants on the Combination Therapy arm, 19 were evaluable for response.

Defined as an increase in hemoglobin level equal to or greater than 1.5 g/L without red blood cell-transfusion OR becoming red blood cell-transfusion-independent in a patient who is red blood cell-transfusion-dependent. Will be based on the intent-to-treat principle.

Outcome measures

Outcome measures
Measure
Treatment Monotherapy (Sotatercept)
n=27 Participants
Patients receive sotatercept SC once every 3 weeks. Cycles repeat every 3 weeks in the absence of disease progression or unacceptable toxicity. Patients unable to achieve anemia-response after 8 cycles will be taken off study. Sotatercept: Given SC
Treatment Combination (Ruxolitinib + Sotatercept)
n=19 Participants
patients that are already on therapy with ruxolitinib (for at least for 6 months, and on stable dose for last 2 months) will continue ruxolitinib in addition to sotatercept SC once every 3 weeks. Cycles repeat every 3 weeks in the absence of disease progression or unacceptable toxicity. Patients unable to achieve anemia-response after 8 cycles will be taken off study. Sotatercept: Given SC Ruxolitinib
Anemia-response
8 Participants
6 Participants

PRIMARY outcome

Timeframe: Up to 9 years

Population: Of the 35 participants on the monotherapy arm, 27 were evaluable for response. Of the 21 participants on the Combination Therapy arm, 19 were evaluable for response.

Response date to loss of response or last follow up.

Outcome measures

Outcome measures
Measure
Treatment Monotherapy (Sotatercept)
n=27 Participants
Patients receive sotatercept SC once every 3 weeks. Cycles repeat every 3 weeks in the absence of disease progression or unacceptable toxicity. Patients unable to achieve anemia-response after 8 cycles will be taken off study. Sotatercept: Given SC
Treatment Combination (Ruxolitinib + Sotatercept)
n=19 Participants
patients that are already on therapy with ruxolitinib (for at least for 6 months, and on stable dose for last 2 months) will continue ruxolitinib in addition to sotatercept SC once every 3 weeks. Cycles repeat every 3 weeks in the absence of disease progression or unacceptable toxicity. Patients unable to achieve anemia-response after 8 cycles will be taken off study. Sotatercept: Given SC Ruxolitinib
Duration of Response
23.3 Months
Interval 3.9 to 68.4
19.9 Months
Interval 3.7 to 56.8

Adverse Events

Treatment Monotherapy (Sotatercept)

Serious events: 11 serious events
Other events: 30 other events
Deaths: 0 deaths

Treatment Combination (Ruxolitinib + Sotatercept)

Serious events: 10 serious events
Other events: 19 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Treatment Monotherapy (Sotatercept)
n=35 participants at risk
Patients receive sotatercept SC once every 3 weeks. Cycles repeat every 3 weeks in the absence of disease progression or unacceptable toxicity. Patients unable to achieve anemia-response after 8 cycles will be taken off study. Sotatercept: Given SC
Treatment Combination (Ruxolitinib + Sotatercept)
n=21 participants at risk
patients that are already on therapy with ruxolitinib (for at least for 6 months, and on stable dose for last 2 months) will continue ruxolitinib in addition to sotatercept SC once every 3 weeks. Cycles repeat every 3 weeks in the absence of disease progression or unacceptable toxicity. Patients unable to achieve anemia-response after 8 cycles will be taken off study. Sotatercept: Given SC Ruxolitinib
Renal and urinary disorders
Acute kidney injury
2.9%
1/35 • Number of events 1 • Up to 9 years
4.8%
1/21 • Number of events 1 • Up to 9 years
Blood and lymphatic system disorders
Anemia
8.6%
3/35 • Number of events 3 • Up to 9 years
4.8%
1/21 • Number of events 1 • Up to 9 years
General disorders
Chest wall pain
2.9%
1/35 • Number of events 1 • Up to 9 years
0.00%
0/21 • Up to 9 years
General disorders
Chills
2.9%
1/35 • Number of events 1 • Up to 9 years
0.00%
0/21 • Up to 9 years
Hepatobiliary disorders
Cholecystitis
0.00%
0/35 • Up to 9 years
4.8%
1/21 • Number of events 1 • Up to 9 years
Nervous system disorders
Dizziness
2.9%
1/35 • Number of events 1 • Up to 9 years
0.00%
0/21 • Up to 9 years
Respiratory, thoracic and mediastinal disorders
Dyspnea
5.7%
2/35 • Number of events 2 • Up to 9 years
0.00%
0/21 • Up to 9 years
Gastrointestinal disorders
Enterocolitis
0.00%
0/35 • Up to 9 years
4.8%
1/21 • Number of events 1 • Up to 9 years
Injury, poisoning and procedural complications
Fall
0.00%
0/35 • Up to 9 years
4.8%
1/21 • Number of events 1 • Up to 9 years
General disorders
Fever
5.7%
2/35 • Number of events 2 • Up to 9 years
4.8%
1/21 • Number of events 1 • Up to 9 years
Nervous system disorders
Headache
2.9%
1/35 • Number of events 1 • Up to 9 years
0.00%
0/21 • Up to 9 years
Renal and urinary disorders
Hematuria
2.9%
1/35 • Number of events 1 • Up to 9 years
0.00%
0/21 • Up to 9 years
Infections and infestations
Infections and infestations
0.00%
0/35 • Up to 9 years
9.5%
2/21 • Number of events 3 • Up to 9 years
Infections and infestations
Lung infection
0.00%
0/35 • Up to 9 years
14.3%
3/21 • Number of events 5 • Up to 9 years
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
5.7%
2/35 • Number of events 2 • Up to 9 years
9.5%
2/21 • Number of events 2 • Up to 9 years
General disorders
Non cardiac chest pain
2.9%
1/35 • Number of events 1 • Up to 9 years
0.00%
0/21 • Up to 9 years
General disorders
Pain in extremity
0.00%
0/35 • Up to 9 years
4.8%
1/21 • Number of events 1 • Up to 9 years
Infections and infestations
Sepsis
0.00%
0/35 • Up to 9 years
4.8%
1/21 • Number of events 1 • Up to 9 years
Infections and infestations
Skin infection
2.9%
1/35 • Number of events 1 • Up to 9 years
4.8%
1/21 • Number of events 2 • Up to 9 years
Gastrointestinal disorders
Vomiting
2.9%
1/35 • Number of events 1 • Up to 9 years
0.00%
0/21 • Up to 9 years
Infections and infestations
Wound infection
0.00%
0/35 • Up to 9 years
4.8%
1/21 • Number of events 1 • Up to 9 years

Other adverse events

Other adverse events
Measure
Treatment Monotherapy (Sotatercept)
n=35 participants at risk
Patients receive sotatercept SC once every 3 weeks. Cycles repeat every 3 weeks in the absence of disease progression or unacceptable toxicity. Patients unable to achieve anemia-response after 8 cycles will be taken off study. Sotatercept: Given SC
Treatment Combination (Ruxolitinib + Sotatercept)
n=21 participants at risk
patients that are already on therapy with ruxolitinib (for at least for 6 months, and on stable dose for last 2 months) will continue ruxolitinib in addition to sotatercept SC once every 3 weeks. Cycles repeat every 3 weeks in the absence of disease progression or unacceptable toxicity. Patients unable to achieve anemia-response after 8 cycles will be taken off study. Sotatercept: Given SC Ruxolitinib
Immune system disorders
Allergic reaction
0.00%
0/35 • Up to 9 years
4.8%
1/21 • Number of events 1 • Up to 9 years
Cardiac disorders
Cardiac disorders
14.3%
5/35 • Number of events 7 • Up to 9 years
23.8%
5/21 • Number of events 5 • Up to 9 years
Gastrointestinal disorders
Constipation
14.3%
5/35 • Number of events 5 • Up to 9 years
23.8%
5/21 • Number of events 5 • Up to 9 years
Gastrointestinal disorders
Diarrhea
25.7%
9/35 • Number of events 9 • Up to 9 years
38.1%
8/21 • Number of events 8 • Up to 9 years
Nervous system disorders
Dizziness
17.1%
6/35 • Number of events 8 • Up to 9 years
19.0%
4/21 • Number of events 5 • Up to 9 years
Gastrointestinal disorders
Dysphagia
0.00%
0/35 • Up to 9 years
9.5%
2/21 • Number of events 2 • Up to 9 years
Respiratory, thoracic and mediastinal disorders
Dyspnea
17.1%
6/35 • Number of events 6 • Up to 9 years
14.3%
3/21 • Up to 9 years
General disorders
Edema limbs
25.7%
9/35 • Number of events 9 • Up to 9 years
14.3%
3/21 • Number of events 3 • Up to 9 years
Investigations
Elevated Albumin/Creatinine Ratio
11.4%
4/35 • Number of events 4 • Up to 9 years
4.8%
1/21 • Number of events 1 • Up to 9 years
Investigations
elevated transaminase levels
2.9%
1/35 • Number of events 2 • Up to 9 years
14.3%
3/21 • Number of events 3 • Up to 9 years
Injury, poisoning and procedural complications
Fall
5.7%
2/35 • Number of events 2 • Up to 9 years
14.3%
3/21 • Number of events 4 • Up to 9 years
General disorders
Fatigue
17.1%
6/35 • Number of events 6 • Up to 9 years
14.3%
3/21 • Number of events 3 • Up to 9 years
General disorders
Fever
8.6%
3/35 • Number of events 3 • Up to 9 years
14.3%
3/21 • Number of events 5 • Up to 9 years
General disorders
Flu like symptoms
25.7%
9/35 • Number of events 28 • Up to 9 years
66.7%
14/21 • Number of events 31 • Up to 9 years
Vascular disorders
Flushing
5.7%
2/35 • Number of events 2 • Up to 9 years
0.00%
0/21 • Up to 9 years
Gastrointestinal disorders
Gastrointestinal disorders
28.6%
10/35 • Number of events 17 • Up to 9 years
42.9%
9/21 • Number of events 14 • Up to 9 years
General disorders
Headache
5.7%
2/35 • Number of events 3 • Up to 9 years
4.8%
1/21 • Number of events 1 • Up to 9 years
Vascular disorders
Hot flashes
5.7%
2/35 • Number of events 2 • Up to 9 years
0.00%
0/21 • Up to 9 years
Vascular disorders
Hypertension
14.3%
5/35 • Number of events 7 • Up to 9 years
23.8%
5/21 • Number of events 5 • Up to 9 years
Endocrine disorders
Hypothyroidism
0.00%
0/35 • Up to 9 years
4.8%
1/21 • Number of events 1 • Up to 9 years
Infections and infestations
Infection
11.4%
4/35 • Number of events 7 • Up to 9 years
14.3%
3/21 • Number of events 3 • Up to 9 years
Injury, poisoning and procedural complications
Injury, poisoning and procedural complications
5.7%
2/35 • Number of events 5 • Up to 9 years
4.8%
1/21 • Number of events 2 • Up to 9 years
Psychiatric disorders
Insomnia
11.4%
4/35 • Number of events 4 • Up to 9 years
28.6%
6/21 • Number of events 6 • Up to 9 years
Metabolism and nutrition disorders
Iron overload
0.00%
0/35 • Up to 9 years
9.5%
2/21 • Number of events 2 • Up to 9 years
Blood and lymphatic system disorders
Leukocytosis
0.00%
0/35 • Up to 9 years
4.8%
1/21 • Number of events 1 • Up to 9 years
Vascular disorders
Lymphedema
0.00%
0/35 • Up to 9 years
4.8%
1/21 • Number of events 2 • Up to 9 years
Gastrointestinal disorders
Mucositis oral
0.00%
0/35 • Up to 9 years
19.0%
4/21 • Number of events 5 • Up to 9 years
Musculoskeletal and connective tissue disorders
Musculoskeletal and connective tissue disorder
25.7%
9/35 • Number of events 16 • Up to 9 years
28.6%
6/21 • Number of events 11 • Up to 9 years
Gastrointestinal disorders
Nausea
8.6%
3/35 • Number of events 3 • Up to 9 years
9.5%
2/21 • Number of events 2 • Up to 9 years
General disorders
Pain
45.7%
16/35 • Number of events 34 • Up to 9 years
42.9%
9/21 • Number of events 22 • Up to 9 years
Nervous system disorders
Paresthesia
5.7%
2/35 • Number of events 2 • Up to 9 years
9.5%
2/21 • Number of events 2 • Up to 9 years
Nervous system disorders
Peripheral neuropathy
11.4%
4/35 • Number of events 4 • Up to 9 years
4.8%
1/21 • Number of events 1 • Up to 9 years
Renal and urinary disorders
Proteinuria
0.00%
0/35 • Up to 9 years
4.8%
1/21 • Number of events 1 • Up to 9 years
Skin and subcutaneous tissue disorders
Pruritus
0.00%
0/35 • Up to 9 years
19.0%
4/21 • Number of events 4 • Up to 9 years
Skin and subcutaneous tissue disorders
Rash maculo papular
11.4%
4/35 • Number of events 4 • Up to 9 years
4.8%
1/21 • Number of events 1 • Up to 9 years
Renal and urinary disorders
Renal and urinary disorders
28.6%
10/35 • Number of events 13 • Up to 9 years
33.3%
7/21 • Number of events 9 • Up to 9 years
Respiratory, thoracic and mediastinal disorders
Respiratory failure
0.00%
0/35 • Up to 9 years
4.8%
1/21 • Number of events 2 • Up to 9 years
Respiratory, thoracic and mediastinal disorders
Respiratory, thoracic and mediastinal disorders
5.7%
2/35 • Number of events 2 • Up to 9 years
9.5%
2/21 • Number of events 2 • Up to 9 years
Infections and infestations
Sinusitis
5.7%
2/35 • Number of events 2 • Up to 9 years
0.00%
0/21 • Up to 9 years
Skin and subcutaneous tissue disorders
Skin and subcutaneous tissue disorders
22.9%
8/35 • Number of events 9 • Up to 9 years
23.8%
5/21 • Number of events 10 • Up to 9 years
Ear and labyrinth disorders
Tinnitus
2.9%
1/35 • Number of events 1 • Up to 9 years
9.5%
2/21 • Number of events 2 • Up to 9 years
Nervous system disorders
Tremor
2.9%
1/35 • Number of events 1 • Up to 9 years
4.8%
1/21 • Number of events 1 • Up to 9 years
Gastrointestinal disorders
Vomiting
8.6%
3/35 • Number of events 5 • Up to 9 years
4.8%
1/21 • Number of events 1 • Up to 9 years
Investigations
Weight loss
5.7%
2/35 • Number of events 2 • Up to 9 years
4.8%
1/21 • Number of events 1 • Up to 9 years
General disorders
Bleeding Hemorrhage
22.9%
8/35 • Number of events 13 • Up to 9 years
28.6%
6/21 • Number of events 10 • Up to 9 years
Psychiatric disorders
Psychiatric Disorders
11.4%
4/35 • Number of events 4 • Up to 9 years
33.3%
7/21 • Number of events 7 • Up to 9 years

Additional Information

Prithviraj Bose MD/Associate Professor

The University of Texas MD Anderson Cancer

Phone: 713-792-7747

Results disclosure agreements

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