An interventional study of Creatine in Breast Cancer, Breast Cancer Female and Muscle Weakness, sponsored by The University of Texas Medical Branch, Galveston. Recruiting at 1 site in United States. Open to female participants aged 18 Years to 75 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-12-24.
Sponsored by The University of Texas Medical Branch, Galveston · Not applicable, Interventional, and Supportive care
The study's purpose is to evaluate whether creatine supplementation can help breast cancer survivors respond quicker to exercise by improving strength, endurance, and body composition. We are seeking to compare information collected from healthy woman of the same age who have never had breast cancer to those participants who have had breast cancer and undergone chemotherapy treatment.
The primary objective of this study is to determine the effects of creatine supplementation in modulating strength and physical function in breast cancer survivors that have recently completed chemotherapy. The primary objective is to determine the effects of creatine in modulating strength and physical function in cancer survivors.
14,825 studies on the registry are indexed under Breast Neoplasms; 3,319 are open to participants now.
This study's planned enrollment of 60 is below the median of 72 across 10,896 interventional studies indexed under Breast Neoplasms.
Browse Breast Neoplasms studies →The University of Texas Medical Branch, Galveston is the lead sponsor of 257 studies on the registry; 38 are open to participants now.
Of its 32 completed or terminated interventional studies of FDA-regulated products, 26 (81%) have results posted.
Counted across the registry records on this site, refreshed daily.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion criteria (Breast Cancer Group)
Inclusion Criteria (Healthy Age-matched Control Group)
Exclusion Criteria (Healthy Age-matched Control Group)
hormonal therapy for IVF)
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.
“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.
GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².
Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.
A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.
Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.
Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.
ULN (upper limit of normal)
The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.
“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
GFR and eGFR (kidney filtering)
GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².
Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Contraindication
A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Corticosteroids (steroids)
Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.
Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Women who have never been diagnosed with cancer.
Those randomized to receive creatine (experimental group) will be initially dosed at 20 g/day for 7 days to boost availability of creatine systemically. Thereafter, the dose will be reduced to 5 g/day for maintenance through the duration of the 12-week protocol. Participants will engage in three center-based exercise sessions each week for 12 weeks; each session lasting roughly 1-hour. Participants will be given a fitbit (electronic watch that measures steps or heart rate) as well to track heart rate and monitor activity throughout the study.
Dietary Supplement: Creatine
Participants will engage in three center-based exercise sessions each week for 12 weeks; each session lasting roughly 1-hour. Participants will be given a Fitbit (electronic watch that measures steps or heart rate) as well to track heart rate and monitor activity throughout the study.
Those randomized to receive creatine (experimental group) will be initially dosed at 20 g/day for 7 days to boost availability of creatine systemically. Thereafter, the dose will be reduced to 5 g/day for maintenance through the duration of the 12-week protocol.
Change in strength in breast cancer survivors
Determine the change in strength in breast cancer survivors by comparing pre and post measurements of strength measurement tools including 1RM/10RM/Biodex evaluations.
Time frame: baseline and 12 weeks
Change in physical functional capacity in breast cancer survivors
Determine the change in strength in breast cancer survivors by comparing pre and post measurements of the six minute walk test.
Time frame: baseline and 12 weeks
Change intramuscular storage of creatine
Determine the change in intramuscular storage of creatine by comparing pre and post vastus lateralis muscle using MRI.
Time frame: baseline and 12 weeks
Change in body composition in cancer survivors
Determine the change in body composition in breast cancer survivors by pre and post measurements of bone mass as well as lean vs fat mass via a DEXA scan.
Time frame: baseline and 12 weeks
Change in the return of strength for breast cancer survivors with creatine + exercise
Breast cancer survivors who complete 12-weeks of exercise with creatine supplementation group who regained strength and physical function to that of women of similar age who never had cancer.
Time frame: 12 weeks
Plan to share: No
Started Oct 2024 (actual). Primary completion is estimated for May 2028, 43 months after the start.
Of 2,661 non-industry interventional studies with no phase under Breast Neoplasms, half reached primary completion within 33 months of starting (the median), counting those still running; a quarter within 16 and three quarters within 66. This study's planned 43 months is above that.
Counting every sponsor, half of 2,771 studies reached it within 33 months; a quarter within 15 and three quarters within 66.
How these figures are worked out, and which studies are left out of them.
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Studies of the drug tested here: Creatine
The University of Texas Medical Branch, Galveston →