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Study of GTx-024 on Muscle Wasting (Cachexia) Cancer.

Double-Blind, Placebo-Controlled, Dose-Finding Study of the Effect of GTx-024 on Muscle Wasting (Cachexia) in Patients With Cancer

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00467844
Enrollment
159
Registered
2007-05-01
Start date
2007-05-31
Completion date
2008-09-30
Last updated
2014-07-11

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

Conditions

Cachexia

Keywords

Cachexia, Muscle Wasting, Non-Small Cell Lung Cancer, Colorectal Cancer, Non-Hodgkin's Lymphoma, Stage 3 or 4 Breast Cancer, Chronis Lymphocytic Leukemia

Brief summary

The purpose of this study is to assess if Gtx-024 is effective in increasing lean body mass in subjects with muscle wasting related to cancer.

Detailed description

Cancer cachexia is characterized by a hypermetabolic state that leads to catabolism that is responsible for reductions in lean mass.These catabolic changes are accompanied by an increase in total energy expenditure, but a decrease in voluntary energy expenditure that ultimately results clinically in cachexia and its symptoms of lethargy, fatigue, weakness and general malaise (Kotler DP. Cachexia. Ann Intern Med. 2000; 133:622-634). The prevalence of cachexia increases from 50 percent at presentation to more than 80 percent before death from malignancy. In over 20 percent of cancer patients, cachexia is the cause of death (Bruera E. Anorexia, cachexia and nutrition. Br Med J 1997;315:1219-1222). Cancer cachexia leads to shorter survival, decreased response rates and increased toxicity to chemotherapy, weakness, and an overall decreased quality of life (DeWys et al. Prognostic effect of weight loss prior to chemotherapy in cancer patients. Eastern Cooperative Oncology Group. Am J Med. 1980 Oct;69(4):491-7). The purpose of this study is to assess the efficacy of GTx-024 on total body lean mass. Secondary endpoints include but are not limited to assessment of GTx-024 on muscle function, total body weight and total body fat mass.

Interventions

1 mg GTx 024

DRUGPlacebo

Matching Placebo

Sponsors

GTx
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Healthy volunteers
No

Inclusion criteria

To be eligible for participation in this study, subjects must meet all of the following criteria: * have been diagnosed with Stage 2, 3 or 4 non-small cell lung cancer or Stage 2, 3 or 4 colorectal cancer or non-hodgkin's lymphoma or chronic lymphocytic leukemia or Stage 3 or 4 breast cancer. * be prior to initiation of or between cycles of chemotherapy. * have experienced greater than or equal to 2% weight loss from the highest patient reported weight in the 6 months prior to screening for Protocol G200502 (Wt = body weight) % weight loss = (Wt at screening - highest Wt in last 6 months) / highest Wt in last 6 months x 100% * If surgery is part of the cancer treatment, screening for this study should be conducted at least 2 weeks (14 days) after surgery. * have a life expectancy of \>6 months * FEMALES - be clinically confirmed as postmenopausal * MALES - over 45 years of age * ECOG score ≤1

Exclusion criteria

Subjects with any of the following will NOT be eligible for enrollment in this study: * history of active/uncontrolled congestive heart failure, chronic hepatitis, hepatic cirrhosis, or HIV infection * Cardiovascular: No uncontrolled hypertension * Positive screen for Hepatitis B consisting of HBsAg (Hepatitis B Surface Antigen), anti-HCV (Hepatitis C Antibody), hepatitis A antibody IgM, or HIV * Currently taking testosterone, OXANDRIN® (oxandrolone), testosterone-like agents (such as DHEA, androstenedione, and other androgenic compounds, including herbals), or antiandrogens (Please note that previous therapy with testosterone and testosterone-like agents is acceptable with a 30 day wash-out. However, if the previous testosterone therapy was a long-term depot, within the past 6 months, the site should call the medical monitor for this study to determine appropriate washout period.) * Currently taking megestrol acetate (MEGACE®), dronabinol (MARINOL®), or any prescription medication intended to increase appetite or treat unintentional weight loss

Design outcomes

Primary

MeasureTime frameDescription
The Efficacy of GTx-024 on Total Body Lean Mass.Baseline to Four MonthsChange in total body lean mass as measured by dual energy x-ray absorptiometry (DEXA)from baseline to 4 months.

Secondary

MeasureTime frameDescription
To Assess the Efficacy of GTx-024 on Muscle Function (Performance) as Measured by Stair Climb.Four MonthsChange in stair climb power from baseline to 4 months. Stair climb power is defined power (watts)=\[9.8 m/sec\*\*2\]\*\[weight (kg)\]\*\[height of 12 steps(meters)\]/ \[time (seconds) up the 12 steps\].

Countries

Canada, United States

Participant flow

Participants by arm

ArmCount
GTx -024
1 mg
53
GTx-024
3 mg
54
3 mg of Placebo
Placebo
52
Total159

Baseline characteristics

CharacteristicGTx -024GTx-0243 mg of PlaceboTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
28 Participants32 Participants28 Participants88 Participants
Age, Categorical
Between 18 and 65 years
25 Participants22 Participants24 Participants71 Participants
Age, Continuous65.7 years
STANDARD_DEVIATION 10.03
66.3 years
STANDARD_DEVIATION 10.51
65.6 years
STANDARD_DEVIATION 8.73
65.9 years
STANDARD_DEVIATION 9.74
Region of Enrollment
Argentina
14 participants17 participants16 participants47 participants
Region of Enrollment
United States
39 participants37 participants36 participants112 participants
Sex: Female, Male
Female
19 Participants20 Participants17 Participants56 Participants
Sex: Female, Male
Male
34 Participants34 Participants35 Participants103 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —
other
Total, other adverse events
47 / 5349 / 5446 / 52
serious
Total, serious adverse events
14 / 5315 / 5417 / 52

Outcome results

Primary

The Efficacy of GTx-024 on Total Body Lean Mass.

Change in total body lean mass as measured by dual energy x-ray absorptiometry (DEXA)from baseline to 4 months.

Time frame: Baseline to Four Months

Population: The number of participants were those subjects in the modified intent-to-treat population (defined as subjects with at least one post baseline DEXA for LBM) who had baseline and 4 month DEXA results for LBM (observed cases).

ArmMeasureValue (MEDIAN)
GTx-024 1 mgThe Efficacy of GTx-024 on Total Body Lean Mass.1.55 kg
GTx-024 3 mgThe Efficacy of GTx-024 on Total Body Lean Mass.0.98 kg
PlaceboThe Efficacy of GTx-024 on Total Body Lean Mass.0.02 kg
Secondary

To Assess the Efficacy of GTx-024 on Muscle Function (Performance) as Measured by Stair Climb.

Change in stair climb power from baseline to 4 months. Stair climb power is defined power (watts)=\[9.8 m/sec\*\*2\]\*\[weight (kg)\]\*\[height of 12 steps(meters)\]/ \[time (seconds) up the 12 steps\].

Time frame: Four Months

Population: The subjects were in the MITT population (had a post baseline DEXA) and had a month 4 stair climb assessment (observed cases).

ArmMeasureValue (MEDIAN)
GTx-024 1 mgTo Assess the Efficacy of GTx-024 on Muscle Function (Performance) as Measured by Stair Climb.19.93 watts
GTx-024 3 mgTo Assess the Efficacy of GTx-024 on Muscle Function (Performance) as Measured by Stair Climb.12.84 watts
PlaceboTo Assess the Efficacy of GTx-024 on Muscle Function (Performance) as Measured by Stair Climb.11.34 watts

Source: ClinicalTrials.gov · Data processed: Mar 24, 2026