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Pilot Clinical Trial of Repeated Doses of Macimorelin to Assess Safety and Efficacy in Patients With Cancer Cachexia

Pilot Clinical Trial of Repeated Doses of Macimorelin to Assess Safety and Efficacy in Patients With Cancer Cachexia

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01614990
Enrollment
15
Registered
2012-06-08
Start date
2012-05-31
Completion date
2021-12-31
Last updated
2024-03-20

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Cancer Cachexia

Brief summary

The purpose of this study is to evaluate the safety and efficacy of repeated oral administration of macimorelin at different doses daily for 1 week for the treatment of cancer cachexia.

Interventions

Subjects will receive macimorelin (1 mg/kg) and matching placebo (Powerade®) daily for 7 days.

DRUGPlacebo

placebo (Powerade®) daily for 7 days.

Sponsors

VA Office of Research and Development
CollaboratorFED
Baylor College of Medicine
CollaboratorOTHER
AEterna Zentaris
CollaboratorINDUSTRY
Garcia, Jose M., MD, PhD
Lead SponsorINDIV

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Investigator)

Eligibility

Sex/Gender
ALL
Healthy volunteers
No

Inclusion criteria

1. Subjects ≥18 years of age with histological diagnosis of incurable cancer (solid tumor), 2. ECOG performance status of 0-2, 3. Presence of cancer-related cachexia defined as an involuntary weight loss of at least 5% of the pre-illness body weight over the previous 6 months, and 4. Provide written informed consent prior to screening.

Exclusion criteria

1. Obesity (body weight \>140 Kg); 2. Recent active excessive alcohol or illicit drug use; 3. Severe depression as determined by the investigator; 4. Other causes of cachexia such as: Liver disease (AST or ALT \> 3x normal levels); renal failure (creatinine \>1.5 mg/dL), untreated thyroid disease, class III-IV CHF, AIDS, severe COPD requiring use of home O2; 5. Inability to increase food intake (e.g., esophageal obstruction, intractable nausea and vomiting); 6. Any condition that would prevent the subject from performing the research procedures (e.g. unstable coronary artery disease); 7. Use of growth hormone, megestrol, Marinol, or any other anabolic agents, appetite stimulants (including corticosteroids other than dexamethasone at the time of IV chemotherapy administrations), tube feeding, or parenteral nutrition during the 1 month prior to entering the study; 8. Recent administration (less than 1 week) of highly emetogenic chemotherapy (Hesketh scale class 4-5); subjects may otherwise be undergoing chemotherapy. 9. Being female and pregnant, breast-feeding or of childbearing potential. (Note: Lack of childbearing potential for female patients is satisfied by: a) being post menopausal; b) being surgically sterile; c) practicing contraception with an oral contraceptive, intra-uterine device, diaphragm, or condom with spermicide for the duration of the study; or d) being sexually inactive. Confirmation that the patient is not pregnant will be established by a negative serum hCG pregnancy test at the time of enrollment. 10. Co-administration of drugs that prolong QT interval, CYP3A4 inducers, QTc equal to or greater than 450ms at screening, or other investigational agents (a wash-out period of five times the half life of drugs that prolong QT will be allowed with approval of prescriber). 11. Conditions that would preclude from successfully scanning subjects in MRI: * Claustrophobia (this would make lying in the scanner very uncomfortable); b. having a pacemaker, aneurysm clips, neurostimulators, cochlear implants, metal in eyes, steel worker, or other implants; c. History of Seizures d. History of head injuries resulting in loss of consciousness \> 10 minutes.

Design outcomes

Primary

MeasureTime frameDescription
Change of Body Weight7 daysThe change of body weight(kg)will be measured between day 1 and day (Day 7-Day 1).
Change of Insulin-like Growth Factor-1 (IGF-1) Plasma Levels7 daysThe change of IGF-1 plasma levels will be measured between day 1 (prior to dosing) and day 7.
Change of Quality of Life Score7 daysThe change of quality of life score (Anderson Symptom Assessment Scale \[ASAS; absolute score\], Functional Assessment of Chronic Illness-Fatigue \[FACIT-F; total score\]) will be measured between day 1 and day 7. The ASAS is a validated measure of quality of life (QOL) associated with symptom clusters commonly seen in cancer patient populations. The absolute score ranges from 0-100 with higher scores indicative of worse cancer symptoms. The FACIT-F is a validated measure of QOL associated with fatigue related to chronic illness. To account for missing items, the FACIT-F total score (sum of subscales) was adjusted by calculating the percent total score of items completed with the following: (FACIT-F Total Score)/(N items completed ×4 (maximum possible score for each item ) × 100% Scores range from 0 to 160 with higher scores indicative of greater fatigue. Tests consists of 5 subscales: Physical, Social/Family, Emotional, and Functional Well-Being, and Additional Concerns.

Secondary

MeasureTime frameDescription
Energy Expenditure as Measured by Indirect Calorimetry.7 daysChange in energy expenditure as measured by indirect calorimetry.
Laboratory AssaysDay 1 to Day 7Change in Insulin-Like Growth Factor Binding Protein-3 (IGFBP-3), Highly Sensitive C-Reactive Protein (CRP), and glucose between day 1 and day 7.
Safety Laboratory (White Blood Cells)Day 1 to Day 7Change in Clinical laboratory parameters: complete blood count (CBC)
ECGDay 1 to Day 7Change in electrocardiogram (ECG) at days 1 and 7 before and 1 hour after dosing and on the post-study visit.
Number of Participants With Adverse Events as a Measure of Safety and Tolerability7 daysRecording of any adverse events from day 1 to day 7.
Change in Stair Climbing Power (SCP)Day 1 to Day 7SCP was assessed on Day 1 & 7. Participants were asked to climb a standard flight of hospital stairs (13 steps, 15.3 cm each) as quickly as possible, using the handrail if necessary. Two-three trials were attempted with one minute of rest in-between. The shortest completion time was transformed into power and used for analysis where: W= (body mass (kg) × acceleration of gravity (9.81 m⁄s\^2 )× vertical distance (1.99 m))/(time (seconds))
Change in Percent Predicted Resting Energy Expenditure (REE)Day 1 to Day 7Change in percent predicted (REE) as measured by indirect calorimetry.
Change in Respiratory QuotientDay 1 to Day 7Change in respiratory quotient (the ratio of volume CO2 released to volume of O2 utilized) as measured by indirect calorimetry.
Laboratory Assays (Growth Hormone)Day 1 to Day 7Change in Growth Hormone (GH) between day 1 and day 7.
Safety Laboratory (Red Blood Cells)Day 1 to Day 7Change in Clinical laboratory parameters: complete blood count (CBC)
Safety Laboratory (Hemoglobin [HGB]; Mean Corpuscular Hemoglobin [MCH] Concentration; Protein; Total Albumin)Day 1 to Day 7Change in Clinical laboratory parameters: complete blood count (CBC) and complete metabolic panel
Food Intake and Diary7 daysFood intake as measured by a food diary to be recorded for 3 days before days 1 and 7 and by a test meal done at screening and on day 7.
Safety Laboratory (Mean Corpuscular Volume [MCV])Day 1 to Day 7Change in Clinical laboratory parameters: complete blood count (CBC)
Safety Laboratory (Mean Corpuscular Hemoglobin [MCH])Day 1 to Day 7Change in Clinical laboratory parameters: complete blood count (CBC)
Safety Laboratory (Platelet)Day 1 to Day 7Change in Clinical laboratory parameters: complete blood count (CBC)
Safety Laboratory {Blood Urea Nitrogen [BUN]; Creatinine; Calcium)Day 1 to Day 7Change in Clinical laboratory parameters: complete metabolic panel
Safety Laboratory (Sodium; Chloride; Carbon Dioxide)Day 1 to Day 7Change in Clinical laboratory parameters: complete metabolic panel
Safety Laboratory (Potassium)Day 1 to Day 7Change in Clinical laboratory parameters: complete metabolic panel
Safety Laboratory (Alkaline Phosphatase)Day 1 to Day 7Change in Clinical laboratory parameters: complete metabolic panel
Safety Laboratory (Estimated Glomerular Filtration Rate [eGFR])Day 1 to Day 7Change in Clinical laboratory parameters: complete metabolic panel
Safety Laboratory (Alanine Transaminase [ALT]; Aspartate Aminotransferase [AST])Day 1 to Day 7Change in Clinical laboratory parameters: complete metabolic panel
ECG (Heart Rate [HR])Day 1 to Day 7Change in electrocardiogram (ECG) at days 1 and 7 before and 1 hour after dosing and on the post-study visit.
Laboratory Safety (Hematocrit [HCT]; Red Cell Distribution Width [RCDW]; Neutrophil; Lymphocyte; Monocyte; Eosinophil; Basophil)Day 1 to Day 7Change in Clinical laboratory parameters: complete blood count (CBC)
Appetite (Visual Analog Scale [VAS] for Appetite)7 daysChange of appetite measured by a validated visual analogue scale between day 1 and day 7. The VAS is a one-item measure that quantifies subjective rating with a 100 mm line anchored at 0 mm with the words Not at all and at 100 mm with the word Extremely where the participant makes a mark on the line indicative of their current hunger level. Higher scores are indicative of greater perceived hunger.
Handgrip Strength7 daysChange in muscle strength as measured by handgrip strength.

Countries

United States

Participant flow

Pre-assignment details

Trial was closed prior to target recruitment due to poor accrual and study relocation.

Participants by arm

ArmCount
Macimorelin
Macimorelin: Subjects will receive macimorelin (1 mg/kg) and matching placebo (Powerade®) daily for 7 days.
9
Placebo
Placebo: placebo (Powerade®) daily for 7 days.
4
Total13

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyProtocol Violation11

Baseline characteristics

CharacteristicMacimorelinPlaceboTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
7 Participants3 Participants10 Participants
Age, Categorical
Between 18 and 65 years
2 Participants1 Participants3 Participants
Age, Continuous70 years
STANDARD_DEVIATION 6.8
66 years
STANDARD_DEVIATION 6.5
66 years
STANDARD_DEVIATION 6.4
Anderson Symptom Assessment Scale (ASAS; absolute score)82 units on a scale
STANDARD_DEVIATION 8.1
75 units on a scale
STANDARD_DEVIATION 10.7
80 units on a scale
STANDARD_DEVIATION 8.7
BMI23.5 kg/m^2
STANDARD_DEVIATION 4
18.9 kg/m^2
STANDARD_DEVIATION 3.9
22.5 kg/m^2
STANDARD_DEVIATION 4.1
Functional Assessment of Chronic Illness-Fatigue (FACIT-F; total score)70.0 units on a scale
STANDARD_DEVIATION 10.9
65.0 units on a scale
STANDARD_DEVIATION 10.4
70.0 units on a scale
STANDARD_DEVIATION 10.6
Height171.5 cm
STANDARD_DEVIATION 8.2
167.6 cm
STANDARD_DEVIATION 5.1
168.9 cm
STANDARD_DEVIATION 7.2
IGF-181 ng/mL
STANDARD_DEVIATION 42.5
119 ng/mL
STANDARD_DEVIATION 83.9
95 ng/mL
STANDARD_DEVIATION 63.6
Race/Ethnicity, Customized
Black
1 Participants1 Participants2 Participants
Race/Ethnicity, Customized
White, Hispanic
3 Participants1 Participants4 Participants
Race/Ethnicity, Customized
White, non-Hispanic
5 Participants2 Participants7 Participants
Region of Enrollment
United States
9 Participants4 Participants13 Participants
Sex: Female, Male
Female
0 Participants1 Participants1 Participants
Sex: Female, Male
Male
9 Participants3 Participants12 Participants
Weight65.3 kg
STANDARD_DEVIATION 12.7
54.4 kg
STANDARD_DEVIATION 9.9
63.5 kg
STANDARD_DEVIATION 12.2

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 100 / 5
other
Total, other adverse events
2 / 100 / 5
serious
Total, serious adverse events
1 / 100 / 5

Outcome results

Primary

Change of Body Weight

The change of body weight(kg)will be measured between day 1 and day (Day 7-Day 1).

Time frame: 7 days

Population: One patient in placebo discontinued the study after one dose due to initiation of an exclusionary medication (QT-prolonging chemotherapy); one patient in macimorelin (0.5 mg/kg) discontinued the study after receiving two doses due to non-compliance. Final number included for analysis was Macimorelin, N=9 and Placebo N=4.

ArmMeasureValue (MEDIAN)Dispersion
MacimorelinChange of Body Weight0 kgStandard Error 0.3
PlaceboChange of Body Weight0.2 kgStandard Error 0.2
Primary

Change of Insulin-like Growth Factor-1 (IGF-1) Plasma Levels

The change of IGF-1 plasma levels will be measured between day 1 (prior to dosing) and day 7.

Time frame: 7 days

Population: One patient in placebo discontinued the study after one dose due to initiation of an exclusionary medication (QT-prolonging chemotherapy); one patient in macimorelin (0.5 mg/kg) discontinued the study after receiving two doses due to non-compliance. Final number included for analysis was Macimorelin, N=9 and Placebo N=4

ArmMeasureValue (MEDIAN)Dispersion
MacimorelinChange of Insulin-like Growth Factor-1 (IGF-1) Plasma Levels9 ng/mLStandard Error 6.7
PlaceboChange of Insulin-like Growth Factor-1 (IGF-1) Plasma Levels23 ng/mLStandard Error 3.9
Primary

Change of Quality of Life Score

The change of quality of life score (Anderson Symptom Assessment Scale \[ASAS; absolute score\], Functional Assessment of Chronic Illness-Fatigue \[FACIT-F; total score\]) will be measured between day 1 and day 7. The ASAS is a validated measure of quality of life (QOL) associated with symptom clusters commonly seen in cancer patient populations. The absolute score ranges from 0-100 with higher scores indicative of worse cancer symptoms. The FACIT-F is a validated measure of QOL associated with fatigue related to chronic illness. To account for missing items, the FACIT-F total score (sum of subscales) was adjusted by calculating the percent total score of items completed with the following: (FACIT-F Total Score)/(N items completed ×4 (maximum possible score for each item ) × 100% Scores range from 0 to 160 with higher scores indicative of greater fatigue. Tests consists of 5 subscales: Physical, Social/Family, Emotional, and Functional Well-Being, and Additional Concerns.

Time frame: 7 days

Population: One patient in placebo discontinued the study after one dose due to initiation of an exclusionary medication (QT-prolonging chemotherapy); one patient in macimorelin (0.5 mg/kg) discontinued the study after receiving two doses due to non-compliance. Final number included for analysis was Macimorelin, N=9 and Placebo N=4

ArmMeasureGroupValue (MEDIAN)Dispersion
MacimorelinChange of Quality of Life ScoreASAS13.5 score on a scaleStandard Deviation 5.1
MacimorelinChange of Quality of Life ScoreFACIT-F0.9 score on a scaleStandard Deviation 4.7
PlaceboChange of Quality of Life ScoreASAS6.7 score on a scaleStandard Deviation 7.8
PlaceboChange of Quality of Life ScoreFACIT-F0.2 score on a scaleStandard Deviation 5.3
Secondary

Appetite (Visual Analog Scale [VAS] for Appetite)

Change of appetite measured by a validated visual analogue scale between day 1 and day 7. The VAS is a one-item measure that quantifies subjective rating with a 100 mm line anchored at 0 mm with the words Not at all and at 100 mm with the word Extremely where the participant makes a mark on the line indicative of their current hunger level. Higher scores are indicative of greater perceived hunger.

Time frame: 7 days

Population: One patient in placebo discontinued the study after one dose due to initiation of an exclusionary medication (QT-prolonging chemotherapy); one patient in macimorelin (0.5 mg/kg) discontinued the study after receiving two doses due to non-compliance. Final number included for analysis was Macimorelin, N=9 and Placebo N=4

ArmMeasureValue (MEDIAN)Dispersion
MacimorelinAppetite (Visual Analog Scale [VAS] for Appetite)7 units on a scaleStandard Error 11.3
PlaceboAppetite (Visual Analog Scale [VAS] for Appetite)-27.5 units on a scaleStandard Error 23.6
Secondary

Change in Percent Predicted Resting Energy Expenditure (REE)

Change in percent predicted (REE) as measured by indirect calorimetry.

Time frame: Day 1 to Day 7

Population: One patient in placebo discontinued the study after one dose due to initiation of an exclusionary medication (QT-prolonging chemotherapy); one patient in macimorelin (0.5 mg/kg) discontinued the study after receiving two doses due to non-compliance. Final number included for analysis was Macimorelin, N=9 and Placebo N=4

ArmMeasureValue (MEDIAN)Dispersion
MacimorelinChange in Percent Predicted Resting Energy Expenditure (REE)4 % of predicted REE usedStandard Error 3.7
PlaceboChange in Percent Predicted Resting Energy Expenditure (REE)3 % of predicted REE usedStandard Error 4.2
Secondary

Change in Respiratory Quotient

Change in respiratory quotient (the ratio of volume CO2 released to volume of O2 utilized) as measured by indirect calorimetry.

Time frame: Day 1 to Day 7

Population: One patient in placebo discontinued the study after one dose due to initiation of an exclusionary medication (QT-prolonging chemotherapy); one patient in macimorelin (0.5 mg/kg) discontinued the study after receiving two doses due to non-compliance. Final number included for analysis was Macimorelin, N=9 and Placebo N=4

ArmMeasureValue (MEDIAN)Dispersion
MacimorelinChange in Respiratory Quotient-0.01 RatioStandard Error 0.02
PlaceboChange in Respiratory Quotient-0.01 RatioStandard Error 0.01
Secondary

Change in Stair Climbing Power (SCP)

SCP was assessed on Day 1 & 7. Participants were asked to climb a standard flight of hospital stairs (13 steps, 15.3 cm each) as quickly as possible, using the handrail if necessary. Two-three trials were attempted with one minute of rest in-between. The shortest completion time was transformed into power and used for analysis where: W= (body mass (kg) × acceleration of gravity (9.81 m⁄s\^2 )× vertical distance (1.99 m))/(time (seconds))

Time frame: Day 1 to Day 7

Population: One patient in placebo discontinued the study after one dose due to initiation of an exclusionary medication (QT-prolonging chemotherapy); one patient in macimorelin (0.5 mg/kg) discontinued the study after receiving two doses due to non-compliance. Final number included for analysis was Macimorelin, N=9 and Placebo N=4

ArmMeasureValue (MEDIAN)Dispersion
MacimorelinChange in Stair Climbing Power (SCP)-5.1 WStandard Error 8.8
PlaceboChange in Stair Climbing Power (SCP)-5.9 WStandard Error 5.3
Secondary

ECG

Change in electrocardiogram (ECG) at days 1 and 7 before and 1 hour after dosing and on the post-study visit.

Time frame: Day 1 to Day 7

Population: One patient in placebo discontinued the study after one dose due to initiation of an exclusionary medication (QT-prolonging chemotherapy); one patient in macimorelin (0.5 mg/kg) discontinued the study after receiving two doses due to non-compliance. Final number included for analysis was Macimorelin, N=9 and Placebo N=4

ArmMeasureGroupValue (MEDIAN)Dispersion
MacimorelinECGPre-Dose PR Interval (ms)0 msStandard Error 4.3
MacimorelinECGPre-Dose QRS Complex (ms)0 msStandard Error 1.2
MacimorelinECGPre-Dose QT Interval (ms)5 msStandard Error 31.4
MacimorelinECGPre-Dose QT Corrected for HR Interval (QTC; ms)3 msStandard Error 13.8
MacimorelinECGPost-Dose PR Interval (ms)-4 msStandard Error 5.1
MacimorelinECGPost-Dose QRS Complex (ms)2 msStandard Error 1
MacimorelinECGPost-Dose QT Interval (ms)0 msStandard Error 8.8
MacimorelinECGPost-Dose QTC (ms)4 msStandard Error 3.5
PlaceboECGPost-Dose QTC (ms)-8.5 msStandard Error 17.3
PlaceboECGPre-Dose PR Interval (ms)2 msStandard Error 5.9
PlaceboECGPost-Dose PR Interval (ms)-4 msStandard Error 65.7
PlaceboECGPre-Dose QRS Complex (ms)3 msStandard Error 2.4
PlaceboECGPost-Dose QT Interval (ms)-17 msStandard Error 17.82
PlaceboECGPre-Dose QT Interval (ms)-11 msStandard Error 13.4
PlaceboECGPost-Dose QRS Complex (ms)3 msStandard Error 4.5
PlaceboECGPre-Dose QT Corrected for HR Interval (QTC; ms)-4 msStandard Error 8.3
Secondary

ECG (Heart Rate [HR])

Change in electrocardiogram (ECG) at days 1 and 7 before and 1 hour after dosing and on the post-study visit.

Time frame: Day 1 to Day 7

Population: One patient in placebo discontinued the study after one dose due to initiation of an exclusionary medication (QT-prolonging chemotherapy); one patient in macimorelin (0.5 mg/kg) discontinued the study after receiving two doses due to non-compliance. Final number included for analysis was Macimorelin, N=9 and Placebo N=4

ArmMeasureGroupValue (MEDIAN)Dispersion
MacimorelinECG (Heart Rate [HR])Pre-Dose HR2.5 bpmStandard Error 2.7
MacimorelinECG (Heart Rate [HR])Post-Dose HR-1 bpmStandard Error 4.6
PlaceboECG (Heart Rate [HR])Post-Dose HR3 bpmStandard Error 1.8
PlaceboECG (Heart Rate [HR])Pre-Dose HR2.5 bpmStandard Error 2.9
Secondary

Energy Expenditure as Measured by Indirect Calorimetry.

Change in energy expenditure as measured by indirect calorimetry.

Time frame: 7 days

Population: One patient in placebo discontinued the study after one dose due to initiation of an exclusionary medication (QT-prolonging chemotherapy); one patient in macimorelin (0.5 mg/kg) discontinued the study after receiving two doses due to non-compliance. Final number included for analysis was Macimorelin, N=9 and Placebo N=4

ArmMeasureValue (MEDIAN)Dispersion
MacimorelinEnergy Expenditure as Measured by Indirect Calorimetry.49 kcalsStandard Error 51
PlaceboEnergy Expenditure as Measured by Indirect Calorimetry.34 kcalsStandard Error 49
Secondary

Food Intake and Diary

Food intake as measured by a food diary to be recorded for 3 days before days 1 and 7 and by a test meal done at screening and on day 7.

Time frame: 7 days

Population: One patient in placebo discontinued the study after one dose due to initiation of an exclusionary medication (QT-prolonging chemotherapy); one patient in macimorelin (0.5 mg/kg) discontinued the study after receiving two doses due to non-compliance. Final number included for analysis was Macimorelin, N=9 and Placebo N=4

ArmMeasureGroupValue (MEDIAN)Dispersion
MacimorelinFood Intake and DiaryTest Meal Caloric Intake59 kCalsStandard Error 123
MacimorelinFood Intake and DiaryFood Diary-211 kCalsStandard Error 243.1
PlaceboFood Intake and DiaryTest Meal Caloric Intake-78 kCalsStandard Error 130
PlaceboFood Intake and DiaryFood Diary96.1 kCalsStandard Error 343
Secondary

Handgrip Strength

Change in muscle strength as measured by handgrip strength.

Time frame: 7 days

Population: One patient in placebo discontinued the study after one dose due to initiation of an exclusionary medication (QT-prolonging chemotherapy); one patient in macimorelin (0.5 mg/kg) discontinued the study after receiving two doses due to non-compliance. Final number included for analysis was Macimorelin, N=9 and Placebo N=4

ArmMeasureValue (MEDIAN)Dispersion
MacimorelinHandgrip Strength1.3 kgStandard Error 0.9
PlaceboHandgrip Strength1.4 kgStandard Error 0.5
Secondary

Laboratory Assays

Change in Insulin-Like Growth Factor Binding Protein-3 (IGFBP-3), Highly Sensitive C-Reactive Protein (CRP), and glucose between day 1 and day 7.

Time frame: Day 1 to Day 7

Population: One patient in placebo discontinued the study after one dose due to initiation of an exclusionary medication (QT-prolonging chemotherapy); one patient in macimorelin (0.5 mg/kg) discontinued the study after receiving two doses due to non-compliance. Final number included for analysis was Macimorelin, N=9 and Placebo N=4

ArmMeasureGroupValue (MEDIAN)Dispersion
MacimorelinLaboratory AssaysIGFBP-30.25 mcg/mLStandard Error 0.1
MacimorelinLaboratory Assayshs-CRP-0.5 mcg/mLStandard Error 0.4
MacimorelinLaboratory AssaysGlucose10 mcg/mLStandard Error 230
PlaceboLaboratory AssaysIGFBP-30.1 mcg/mLStandard Error 0.2
PlaceboLaboratory Assayshs-CRP-0.4 mcg/mLStandard Error 0.4
PlaceboLaboratory AssaysGlucose-35 mcg/mLStandard Error 95
Secondary

Laboratory Assays (Growth Hormone)

Change in Growth Hormone (GH) between day 1 and day 7.

Time frame: Day 1 to Day 7

Population: One patient in placebo discontinued the study after one dose due to initiation of an exclusionary medication (QT-prolonging chemotherapy); one patient in macimorelin (0.5 mg/kg) discontinued the study after receiving two doses due to non-compliance. Final number included for analysis was Macimorelin, N=9 and Placebo N=4

ArmMeasureValue (MEDIAN)Dispersion
MacimorelinLaboratory Assays (Growth Hormone)0.7 ng/mLStandard Error 1.2
PlaceboLaboratory Assays (Growth Hormone)-0.5 ng/mLStandard Error 1
Secondary

Laboratory Safety (Hematocrit [HCT]; Red Cell Distribution Width [RCDW]; Neutrophil; Lymphocyte; Monocyte; Eosinophil; Basophil)

Change in Clinical laboratory parameters: complete blood count (CBC)

Time frame: Day 1 to Day 7

Population: One patient in placebo discontinued the study after one dose due to initiation of an exclusionary medication (QT-prolonging chemotherapy). Final number included for analysis was Macimorelin, N=10 and Placebo N=4

ArmMeasureGroupValue (MEDIAN)Dispersion
MacimorelinLaboratory Safety (Hematocrit [HCT]; Red Cell Distribution Width [RCDW]; Neutrophil; Lymphocyte; Monocyte; Eosinophil; Basophil)Neutrophil5.9 % of cellsStandard Error 7.2
MacimorelinLaboratory Safety (Hematocrit [HCT]; Red Cell Distribution Width [RCDW]; Neutrophil; Lymphocyte; Monocyte; Eosinophil; Basophil)Monocyte0.9 % of cellsStandard Error 2
MacimorelinLaboratory Safety (Hematocrit [HCT]; Red Cell Distribution Width [RCDW]; Neutrophil; Lymphocyte; Monocyte; Eosinophil; Basophil)RCDW0 % of cellsStandard Error 0.3
MacimorelinLaboratory Safety (Hematocrit [HCT]; Red Cell Distribution Width [RCDW]; Neutrophil; Lymphocyte; Monocyte; Eosinophil; Basophil)Eosinophil-0.1 % of cellsStandard Error 1.3
MacimorelinLaboratory Safety (Hematocrit [HCT]; Red Cell Distribution Width [RCDW]; Neutrophil; Lymphocyte; Monocyte; Eosinophil; Basophil)Lymphocyte-0.1 % of cellsStandard Error 5.5
MacimorelinLaboratory Safety (Hematocrit [HCT]; Red Cell Distribution Width [RCDW]; Neutrophil; Lymphocyte; Monocyte; Eosinophil; Basophil)Basophil0.1 % of cellsStandard Error 0.1
MacimorelinLaboratory Safety (Hematocrit [HCT]; Red Cell Distribution Width [RCDW]; Neutrophil; Lymphocyte; Monocyte; Eosinophil; Basophil)HCT0.7 % of cellsStandard Error 0.8
PlaceboLaboratory Safety (Hematocrit [HCT]; Red Cell Distribution Width [RCDW]; Neutrophil; Lymphocyte; Monocyte; Eosinophil; Basophil)Basophil0.7 % of cellsStandard Error 0.3
PlaceboLaboratory Safety (Hematocrit [HCT]; Red Cell Distribution Width [RCDW]; Neutrophil; Lymphocyte; Monocyte; Eosinophil; Basophil)HCT-2.3 % of cellsStandard Error 1
PlaceboLaboratory Safety (Hematocrit [HCT]; Red Cell Distribution Width [RCDW]; Neutrophil; Lymphocyte; Monocyte; Eosinophil; Basophil)RCDW0 % of cellsStandard Error 0.2
PlaceboLaboratory Safety (Hematocrit [HCT]; Red Cell Distribution Width [RCDW]; Neutrophil; Lymphocyte; Monocyte; Eosinophil; Basophil)Neutrophil1.2 % of cellsStandard Error 11.4
PlaceboLaboratory Safety (Hematocrit [HCT]; Red Cell Distribution Width [RCDW]; Neutrophil; Lymphocyte; Monocyte; Eosinophil; Basophil)Lymphocyte0.4 % of cellsStandard Error 7.3
PlaceboLaboratory Safety (Hematocrit [HCT]; Red Cell Distribution Width [RCDW]; Neutrophil; Lymphocyte; Monocyte; Eosinophil; Basophil)Monocyte-0.8 % of cellsStandard Error 0.8
PlaceboLaboratory Safety (Hematocrit [HCT]; Red Cell Distribution Width [RCDW]; Neutrophil; Lymphocyte; Monocyte; Eosinophil; Basophil)Eosinophil-0.7 % of cellsStandard Error 3.1
Secondary

Number of Participants With Adverse Events as a Measure of Safety and Tolerability

Recording of any adverse events from day 1 to day 7.

Time frame: 7 days

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
MacimorelinNumber of Participants With Adverse Events as a Measure of Safety and TolerabilityNon-Serious, Unrelated Adverse Event2 Participants
MacimorelinNumber of Participants With Adverse Events as a Measure of Safety and TolerabilityUnrelated, Serious Adverse Event1 Participants
PlaceboNumber of Participants With Adverse Events as a Measure of Safety and TolerabilityNon-Serious, Unrelated Adverse Event0 Participants
PlaceboNumber of Participants With Adverse Events as a Measure of Safety and TolerabilityUnrelated, Serious Adverse Event0 Participants
Secondary

Safety Laboratory (Alanine Transaminase [ALT]; Aspartate Aminotransferase [AST])

Change in Clinical laboratory parameters: complete metabolic panel

Time frame: Day 1 to Day 7

Population: One patient in placebo discontinued the study after one dose due to initiation of an exclusionary medication (QT-prolonging chemotherapy). Final number included for analysis was Macimorelin, N=10 and Placebo N=4

ArmMeasureGroupValue (MEDIAN)Dispersion
MacimorelinSafety Laboratory (Alanine Transaminase [ALT]; Aspartate Aminotransferase [AST])ALT-2 U/LStandard Error 2.5
MacimorelinSafety Laboratory (Alanine Transaminase [ALT]; Aspartate Aminotransferase [AST])AST0.5 U/LStandard Error 5.9
PlaceboSafety Laboratory (Alanine Transaminase [ALT]; Aspartate Aminotransferase [AST])ALT0 U/LStandard Error 0.6
PlaceboSafety Laboratory (Alanine Transaminase [ALT]; Aspartate Aminotransferase [AST])AST1.5 U/LStandard Error 1.4
Secondary

Safety Laboratory (Alkaline Phosphatase)

Change in Clinical laboratory parameters: complete metabolic panel

Time frame: Day 1 to Day 7

Population: One patient in placebo discontinued the study after one dose due to initiation of an exclusionary medication (QT-prolonging chemotherapy). Final number included for analysis was Macimorelin, N=10 and Placebo N=4

ArmMeasureValue (MEDIAN)Dispersion
MacimorelinSafety Laboratory (Alkaline Phosphatase)3 IU/LStandard Error 5.4
PlaceboSafety Laboratory (Alkaline Phosphatase)-4 IU/LStandard Error 4.3
Secondary

Safety Laboratory {Blood Urea Nitrogen [BUN]; Creatinine; Calcium)

Change in Clinical laboratory parameters: complete metabolic panel

Time frame: Day 1 to Day 7

Population: One patient in placebo discontinued the study after one dose due to initiation of an exclusionary medication (QT-prolonging chemotherapy). Final number included for analysis was Macimorelin, N=10 and Placebo N=4

ArmMeasureGroupValue (MEDIAN)Dispersion
MacimorelinSafety Laboratory {Blood Urea Nitrogen [BUN]; Creatinine; Calcium)BUN-1.5 mg/dLStandard Error 1.3
MacimorelinSafety Laboratory {Blood Urea Nitrogen [BUN]; Creatinine; Calcium)Creatinine0 mg/dLStandard Error 0.1
MacimorelinSafety Laboratory {Blood Urea Nitrogen [BUN]; Creatinine; Calcium)Calcium0.2 mg/dLStandard Error 0.3
PlaceboSafety Laboratory {Blood Urea Nitrogen [BUN]; Creatinine; Calcium)BUN2 mg/dLStandard Error 0.9
PlaceboSafety Laboratory {Blood Urea Nitrogen [BUN]; Creatinine; Calcium)Creatinine-0.03 mg/dLStandard Error 0
PlaceboSafety Laboratory {Blood Urea Nitrogen [BUN]; Creatinine; Calcium)Calcium0 mg/dLStandard Error 0.1
Secondary

Safety Laboratory (Estimated Glomerular Filtration Rate [eGFR])

Change in Clinical laboratory parameters: complete metabolic panel

Time frame: Day 1 to Day 7

Population: One patient in placebo discontinued the study after one dose due to initiation of an exclusionary medication (QT-prolonging chemotherapy). Final number included for analysis was Macimorelin, N=10 and Placebo N=4

ArmMeasureValue (MEDIAN)Dispersion
MacimorelinSafety Laboratory (Estimated Glomerular Filtration Rate [eGFR])-3.9 mL/min/1.73 m^2Standard Error 4.8
PlaceboSafety Laboratory (Estimated Glomerular Filtration Rate [eGFR])3.4 mL/min/1.73 m^2Standard Error 4.3
Secondary

Safety Laboratory (Hemoglobin [HGB]; Mean Corpuscular Hemoglobin [MCH] Concentration; Protein; Total Albumin)

Change in Clinical laboratory parameters: complete blood count (CBC) and complete metabolic panel

Time frame: Day 1 to Day 7

Population: One patient in placebo discontinued the study after one dose due to initiation of an exclusionary medication (QT-prolonging chemotherapy). Final number included for analysis was Macimorelin, N=10 and Placebo N=4

ArmMeasureGroupValue (MEDIAN)Dispersion
MacimorelinSafety Laboratory (Hemoglobin [HGB]; Mean Corpuscular Hemoglobin [MCH] Concentration; Protein; Total Albumin)HGB0.3 g/dLStandard Error 0.2
MacimorelinSafety Laboratory (Hemoglobin [HGB]; Mean Corpuscular Hemoglobin [MCH] Concentration; Protein; Total Albumin)MCH Concentration0.3 g/dLStandard Error 0.2
MacimorelinSafety Laboratory (Hemoglobin [HGB]; Mean Corpuscular Hemoglobin [MCH] Concentration; Protein; Total Albumin)Protein0.3 g/dLStandard Error 0.7
MacimorelinSafety Laboratory (Hemoglobin [HGB]; Mean Corpuscular Hemoglobin [MCH] Concentration; Protein; Total Albumin)Total Albumin0.1 g/dLStandard Error 0.3
PlaceboSafety Laboratory (Hemoglobin [HGB]; Mean Corpuscular Hemoglobin [MCH] Concentration; Protein; Total Albumin)Total Albumin-0.1 g/dLStandard Error 0.6
PlaceboSafety Laboratory (Hemoglobin [HGB]; Mean Corpuscular Hemoglobin [MCH] Concentration; Protein; Total Albumin)HGB-0.7 g/dLStandard Error 0.4
PlaceboSafety Laboratory (Hemoglobin [HGB]; Mean Corpuscular Hemoglobin [MCH] Concentration; Protein; Total Albumin)Protein-0.3 g/dLStandard Error 0.2
PlaceboSafety Laboratory (Hemoglobin [HGB]; Mean Corpuscular Hemoglobin [MCH] Concentration; Protein; Total Albumin)MCH Concentration0.4 g/dLStandard Error 0.2
Secondary

Safety Laboratory (Mean Corpuscular Hemoglobin [MCH])

Change in Clinical laboratory parameters: complete blood count (CBC)

Time frame: Day 1 to Day 7

Population: One patient in placebo discontinued the study after one dose due to initiation of an exclusionary medication (QT-prolonging chemotherapy). Final number included for analysis was Macimorelin, N=10 and Placebo N=4

ArmMeasureValue (MEDIAN)Dispersion
MacimorelinSafety Laboratory (Mean Corpuscular Hemoglobin [MCH])0.2 pgStandard Error 0.2
PlaceboSafety Laboratory (Mean Corpuscular Hemoglobin [MCH])0.3 pgStandard Error 0.1
Secondary

Safety Laboratory (Mean Corpuscular Volume [MCV])

Change in Clinical laboratory parameters: complete blood count (CBC)

Time frame: Day 1 to Day 7

Population: One patient in placebo discontinued the study after one dose due to initiation of an exclusionary medication (QT-prolonging chemotherapy). Final number included for analysis was Macimorelin, N=10 and Placebo N=4

ArmMeasureValue (MEDIAN)Dispersion
MacimorelinSafety Laboratory (Mean Corpuscular Volume [MCV])-0.1 flStandard Error 7
PlaceboSafety Laboratory (Mean Corpuscular Volume [MCV])-0.2 flStandard Error 0.4
Secondary

Safety Laboratory (Platelet)

Change in Clinical laboratory parameters: complete blood count (CBC)

Time frame: Day 1 to Day 7

Population: One patient in placebo discontinued the study after one dose due to initiation of an exclusionary medication (QT-prolonging chemotherapy). Final number included for analysis was Macimorelin, N=10 and Placebo N=4

ArmMeasureValue (MEDIAN)Dispersion
MacimorelinSafety Laboratory (Platelet)14.5 10^3 cells/mcLStandard Error 21.9
PlaceboSafety Laboratory (Platelet)10.5 10^3 cells/mcLStandard Error 9.3
Secondary

Safety Laboratory (Potassium)

Change in Clinical laboratory parameters: complete metabolic panel

Time frame: Day 1 to Day 7

Population: One patient in placebo discontinued the study after one dose due to initiation of an exclusionary medication (QT-prolonging chemotherapy). Final number included for analysis was Macimorelin, N=10 and Placebo N=4

ArmMeasureValue (MEDIAN)Dispersion
MacimorelinSafety Laboratory (Potassium)0 mmol/LStandard Error 0.1
PlaceboSafety Laboratory (Potassium)-0.4 mmol/LStandard Error 0.6
Secondary

Safety Laboratory (Red Blood Cells)

Change in Clinical laboratory parameters: complete blood count (CBC)

Time frame: Day 1 to Day 7

Population: One patient in placebo discontinued the study after one dose due to initiation of an exclusionary medication (QT-prolonging chemotherapy). Final number included for analysis was Macimorelin, N=10 and Placebo N=4

ArmMeasureValue (MEDIAN)Dispersion
MacimorelinSafety Laboratory (Red Blood Cells)0.1 10^6 cells/mcLStandard Error 0.1
PlaceboSafety Laboratory (Red Blood Cells)-0.4 10^6 cells/mcLStandard Error 0.1
Secondary

Safety Laboratory (Sodium; Chloride; Carbon Dioxide)

Change in Clinical laboratory parameters: complete metabolic panel

Time frame: Day 1 to Day 7

Population: One patient in placebo discontinued the study after one dose due to initiation of an exclusionary medication (QT-prolonging chemotherapy). Final number included for analysis was Macimorelin, N=10 and Placebo N=4

ArmMeasureGroupValue (MEDIAN)Dispersion
MacimorelinSafety Laboratory (Sodium; Chloride; Carbon Dioxide)Sodium0 mEq/LStandard Error 0.9
MacimorelinSafety Laboratory (Sodium; Chloride; Carbon Dioxide)Chloride-1 mEq/LStandard Error 1.3
MacimorelinSafety Laboratory (Sodium; Chloride; Carbon Dioxide)Carbon Dioxide0 mEq/LStandard Error 0.7
PlaceboSafety Laboratory (Sodium; Chloride; Carbon Dioxide)Sodium1 mEq/LStandard Error 0.9
PlaceboSafety Laboratory (Sodium; Chloride; Carbon Dioxide)Chloride2 mEq/LStandard Error 1.5
PlaceboSafety Laboratory (Sodium; Chloride; Carbon Dioxide)Carbon Dioxide-2 mEq/LStandard Error 1.5
Secondary

Safety Laboratory (White Blood Cells)

Change in Clinical laboratory parameters: complete blood count (CBC)

Time frame: Day 1 to Day 7

Population: One patient in placebo discontinued the study after one dose due to initiation of an exclusionary medication (QT-prolonging chemotherapy). Final number included for analysis was Macimorelin, N=10 and Placebo N=4

ArmMeasureValue (MEDIAN)Dispersion
MacimorelinSafety Laboratory (White Blood Cells)0.2 10^9 cells/LStandard Error 0.5
PlaceboSafety Laboratory (White Blood Cells)0.6 10^9 cells/LStandard Error 1.4

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026