Skeletal Muscle HypertrophySRCTNCT03525197
Effects of a Multi-ingredient Supplement Study: a Randomized Controlled Trial in Men and Women
A study testing Whey protein-based supplement and Collagen protein-based supplement in people with Skeletal Muscle Hypertrophy, run by McMaster University at 2 sites in Canada.
Trial summary
Resistance exercise training is a known stimulant for muscle protein synthesis (MPS) to occur, however the consumption of protein is also necessary to induce a shift towards a positive net protein balance. Other nutrients have been shown to be useful in the accretion of lean body mass and strength. Read more about this study
- Who is it for?
- Ages 18 to 30 yearsHealthy volunteers can take part
- Conditions the study is for
- Skeletal Muscle Hypertrophy
- What is being tested?
- Whey protein-based supplement and Collagen protein-based supplement
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 26 participants
- Where
- 2 sitesCanada
- Study dates
- 1 Sep 2018to 1 Jul 2019
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 30 years
- All sexes
- Healthy volunteers accepted
- Adult
Who may be able to join
- Aged 18-30 years old
- Healthy based on questionnaire responses (see exclusion criteria)
- Recreationally active (exercising ~2x/week) with some resistance training experience (no more than 2 times weekly) allowed
Who cannot join
- Any acute or chronic illness, cardiac, pulmonary, liver, or kidney abnormalities, uncontrolled hypertension, insulin- or non-insulin dependent diabetes or other metabolic disorders-all ascertained through medical history screening questionnaires
- Arthritic conditions
- Individuals who consume any analgesic or anti-inflammatory drug(s), prescription or non-prescription, chronically will be excluded
- A history of neuromuscular complications
- Individuals on any medications known to affect protein metabolism (i.e. corticosteroids, non-steroidal anti-inflammatories, or prescription strength acne medications).
- Extensive history of resistance training in the year prior to study entry.
- Answers 'yes' to any question on the screening questionnaire
Trial locations and contacts
2 sites in 1 country.
Canada2 sites
Exercise Metabolism Research Laboratory, McMaster Univeristy
Hamilton, Ontario, L8S 4K1
Ivor Wynne Center
Hamilton, Ontario, L8S4K1
About this study
Official title: Effects of a Whey Protein-based Multi-ingredient Supplement on Muscle Strength, Hypertrophy, and the Acute Satellite Cell Response, in Men and Women: a Double-blinded Randomized Controlled Trial
Resistance exercise training is a known stimulant for muscle protein synthesis (MPS) to occur, however the consumption of protein is also necessary to induce a shift towards a positive net protein balance. Other nutrients have been shown to be useful in the accretion of lean body mass and strength. Whey protein has been shown to improve muscle net protein balance after resistance exercise, more so when in conjunction with creatine. Furthermore, essential amino acids such as Leucine have been found to be important in moderating the shift towards a positive net protein balance, especially post-exercise and in combination with whey protein. Other vitamins and minerals have been shown to aid in permitting muscle protein synthesis rather than stimulating it, but are still necessary for optimal gains in hypertrophy. The effect of a multi-ingredient compound has rarely been investigated, and thus this study aims to combine whey protein, leucine, creatine, calcium citrate and vitamin D and test it in a resistance exercise training program over 12 weeks. Another novel aspect in this study will be testing this supplement against a placebo of equal amounts of protein and amino acids, the placebo will contain collagen protein and the non-essential amino acids alanine and glycine. Finally, this study will recruit both men and women (ages 18-30) to determine possible effects of the supplement on muscle hypertrophy in both sexes. We hypothesize that the synergistic effect of the ingredients in our supplement will induce hypertrophy to a larger degree than resistance exercise training with the placebo, and that these benefits will persist in both male and female participants.
Read the detailed description
Supplementation in the form of whey protein, creatine and amino acids have all been shown to be a potent stimulus for muscle hypertrophy, when combined with resistance exercise. Burke et al. (2001) reported that males who supplemented with a combination of whey protein and creatine had greater increases in lean tissue mass and strength than those who supplemented with only whey protein or placebo. Hulmi at al. (2010) identified the most important component of whey to be its high concentration of the branched chain amino acid leucine, a critical amino acid for increasing muscle protein synthesis and suppressing muscle protein breakdown. The combination of leucine and whey protein has been shown to promote significant increases in muscle cross-sectional area. Vitamin D and calcium citrate have also been shown to enhance increases in muscle strength and lean mass, albeit in a permissive rather than stimulatory manner. Protein supplements have consistently been shown to promote greater gains in hypertrophy than their placebo counterparts, however these placebo supplements are often isoenergetic carbohydrate-based formulas. Few studies have compared two supplements with an equal amount of protein and amino acids, or have combined multiple beneficial ingredients to form a multicomponent supplement to promote greater gains in lean body mass and strength. Finally, sex differences in resistance training programs have rarely been studied, less so when testing a new supplement. Thus, the purpose of this study will be to determine whether there is an augmented effect of our nutritional supplement on the degree of hypertrophy in young male and female adults involved in a resistance training program. This nutritional supplement will be compared with a placebo containing an equivalent amount of collagen protein and non-essential amino acids. A secondary analysis will assess sex-based differences in strength and muscle size. Based on previous literature, we hypothesize that the combinatorial effect of whey protein, leucine, creatine, calcium citrate and vitamin D will induce hypertrophy to a larger degree than resistance exercise with the placebo in young adults.
A synergistic combination of ingredients with known benefits will be given twice daily to healthy young men and women (18-30 years old), (n = 22) in conjunction with a 12-week undulating periodized resistance training protocol, in which the repetition number and intensity of the training sessions will vary. Notable ingredients in this supplement include whey protein isolate (20g), leucine (2g), creatine monohydrate (2.5g), calcium citrate (300mg) and vitamin D (1000IU). The placebo condition, also comprised of males and females (18-30 years old), (n=22) will ingest a formulation containing an equivalent amount of collagen protein (20g), as well as an equivalent amount of amino acids (alanine, 1.4g and glycine, 0.6g). Pre- and post- assessments will include dual-energy x-ray absorptiometry (DEXA), one-rep maximum (1RM), and an ultrasound of the quadriceps. Four muscle biopsies will be taken from the vastus lateralis: 1) at rest prior to training, 2) 48h after an acute bout of exercise prior to training, 3) at rest post-training, and 4) 48h after an acute bout post-training. This allows for comparisons of acute and trained effects of both conditions. Using novel immunohistochemical staining procedures we will examine the resistance exercise-induced changes in fibre type distribution and fibre cross-sectional area in the supplement and placebo conditions as well as perform sex-based comparisons.
The novel aspect of this study will be the comparison of two isoenergetic, isonitrogenous supplements as stimulants for muscle protein accretion, as opposed to using carbohydrates as a placebo. The supplement will contain a new formulation of ingredients yet to be studied together. The synergistic effect of these ingredients will attempt to maximize muscle growth in both males and females, meaning that associations between sex and exercise can be assessed. This research will help us identify a new method to augment resistance exercise training through protein, amino acids, vitamins and minerals as well as expand the literature surrounding the effects of these ingredients on muscle hypertrophy.
- Conditions
- Skeletal Muscle Hypertrophy
- Being tested
- Whey protein-based supplement, Collagen protein-based supplement
- Keywords
- Muscle Physiology, Nutrition
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Whey protein-based supplementDietary supplement
High quality protein supplement to be consumed twice daily
Collagen protein-based supplementDietary supplement
Lower quality protein supplement to be consumed daily
| Study group | Role | What they receive |
|---|---|---|
| Whey protein-based supplement | Experimental | Participants in the experimental condition will consume a supplement containing Whey Protein Isolate (20g) and other ingredients Receives: Dietary Supplement: Whey protein-based supplement |
| Collagen protein-based supplement | Active comparator | Participants in the experimental condition will consume a supplement containing Collagen protein (20g) and other ingredients Receives: Dietary Supplement: Collagen protein-based supplement |
What is being measured
The primary outcome is the main question the study is designed to answer.
Muscle Mass and fiber cross-sectional area
dual energy x-ray absorptiometry (DXA), ultrasound
Measured: 10 weeks
Secondary outcomes (3)
Satellite cell number, density, type I/type II fibre specific satellite cells and myonuclear domain
Histochemical methods will be used to determine how the supplement and training affect muscle growth and regenerative capacity, specifically the behaviour of satellite cells.
Measured: 10 weeks
Strength
1RM testing pre- and post-training will be compared to determine how the supplement and training affect muscular strength
Measured: 10 weeks
Fiber type distribution
Histochemical methods will be used to determine how the supplement and training affect fiber type distribution (% type I vs. % type II fibers pre- and post-training)
Measured: 10 weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted15 May 2018
- Study start1 Sep 2018
- Primary completion1 Jun 2019
- Study completion1 Jul 2019
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (10)Papers the sponsor has linked to this study.
- Other trials for Skeletal Muscle HypertrophyStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Other
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Model description
- Parallel group design (with repeated measurements within each group)
- Masking
- Double blind
- Who is masked
- Participant, Investigator
- Enrolment
- 26 participants (actual)
Sponsor and investigators
- Lead sponsor
- McMaster University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Stuart Phillips, McMaster University
- Investigators
- Gianni Parise, PhD, Principal investigator, McMaster UniversityStuart Phillips, PhD, Principal investigator, McMaster University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03525197
- Sponsor's protocol ID
- HIREB 4449
- Acronym
- SRCT
- Status last verified
- Jan 2020
- First submitted
- 27 Apr 2018
- Last updated
- 7 Jan 2020
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No: No plan to share individual participant data.
Publications
Burke DG, Chilibeck PD, Davidson KS, Candow DG, Farthing J, Smith-Palmer T. The effect of whey protein supplementation with and without creatine monohydrate combined with resistance training on lean tissue mass and muscle strength. Int J Sport Nutr Exerc Metab. 2001 Sep;11(3):349-64. doi: 10.1123/ijsnem.11.3.349.
PubMed 11591884Paddon-Jones D, Sheffield-Moore M, Zhang XJ, Volpi E, Wolf SE, Aarsland A, Ferrando AA, Wolfe RR; New Collective Author. Amino acid ingestion improves muscle protein synthesis in the young and elderly. Am J Physiol Endocrinol Metab. 2004 Mar;286(3):E321-8. doi: 10.1152/ajpendo.00368.2003. Epub 2003 Oct 28.
PubMed 14583440Rondanelli M, Klersy C, Terracol G, Talluri J, Maugeri R, Guido D, Faliva MA, Solerte BS, Fioravanti M, Lukaski H, Perna S. Whey protein, amino acids, and vitamin D supplementation with physical activity increases fat-free mass and strength, functionality, and quality of life and decreases inflammation in sarcopenic elderly. Am J Clin Nutr. 2016 Mar;103(3):830-40. doi: 10.3945/ajcn.115.113357. Epub 2016 Feb 10.
PubMed 26864356Hulmi JJ, Lockwood CM, Stout JR. Effect of protein/essential amino acids and resistance training on skeletal muscle hypertrophy: A case for whey protein. Nutr Metab (Lond). 2010 Jun 17;7:51. doi: 10.1186/1743-7075-7-51.
PubMed 20565767Coburn JW, Housh DJ, Housh TJ, Malek MH, Beck TW, Cramer JT, Johnson GO, Donlin PE. Effects of leucine and whey protein supplementation during eight weeks of unilateral resistance training. J Strength Cond Res. 2006 May;20(2):284-91. doi: 10.1519/R-17925.1.
PubMed 16686554Tomlinson PB, Joseph C, Angioi M. Effects of vitamin D supplementation on upper and lower body muscle strength levels in healthy individuals. A systematic review with meta-analysis. J Sci Med Sport. 2015 Sep;18(5):575-80. doi: 10.1016/j.jsams.2014.07.022. Epub 2014 Aug 11.
PubMed 25156880Tang JE, Manolakos JJ, Kujbida GW, Lysecki PJ, Moore DR, Phillips SM. Minimal whey protein with carbohydrate stimulates muscle protein synthesis following resistance exercise in trained young men. Appl Physiol Nutr Metab. 2007 Dec;32(6):1132-8. doi: 10.1139/H07-076.
PubMed 18059587Verreijen AM, Verlaan S, Engberink MF, Swinkels S, de Vogel-van den Bosch J, Weijs PJ. A high whey protein-, leucine-, and vitamin D-enriched supplement preserves muscle mass during intentional weight loss in obese older adults: a double-blind randomized controlled trial. Am J Clin Nutr. 2015 Feb;101(2):279-86. doi: 10.3945/ajcn.114.090290. Epub 2014 Nov 26.
PubMed 25646324Wageh M, Fortino SA, Pontello R, Maklad A, McGlory C, Kumbhare D, Phillips SM, Parise G. The Effect of Multi-Ingredient Protein versus Collagen Supplementation on Satellite Cell Properties in Males and Females. Med Sci Sports Exerc. 2024 Nov 1;56(11):2125-2134. doi: 10.1249/MSS.0000000000003505.
PubMed 39475860Wageh M, Fortino SA, McGlory C, Kumbhare D, Phillips SM, Parise G. The Effect of a Multi-ingredient Supplement on Resistance Training-induced Adaptations. Med Sci Sports Exerc. 2021 Aug 1;53(8):1699-1707. doi: 10.1249/MSS.0000000000002641.
PubMed 33756525
Study at a glance
From the registry record, last updated by the sponsor on 7 Jan 2020. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effects of a Whey Protein-based Multi-ingredient Supplement on Muscle Strength, Hypertrophy, and the Acute Satellite Cell Response, in Men and Women: a Double-blinded Randomized Controlled Trial
- ClinicalTrials.gov ID
- NCT03525197
- Acronym / sponsor ID
- SRCT / HIREB 4449
- Conditions
- Skeletal Muscle Hypertrophy
- Keywords
- Muscle Physiology, Nutrition
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 26 participants (actual)
- Lead sponsor
- McMaster UniversityUniversity, hospital or other
- Study start
- 1 Sep 2018 (actual)
- Primary completion
- 1 Jun 2019 (actual)
- Study completion
- 1 Jul 2019 (actual)
- First posted
- 15 May 2018 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Resistance exercise training is a known stimulant for muscle protein synthesis (MPS) to occur, however the consumption of protein is also necessary to induce a shift towards a positive net protein balance. Other nutrients have been shown to be useful in the accretion of lean body mass and strength. Whey protein has been shown to improve muscle net protein balance after resistance exercise, more so when in conjunction with creatine. Furthermore, essential amino acids such as Leucine have been found to be important in moderating the shift towards a positive net protein balance, especially post-exercise and in combination with whey protein. Other vitamins and minerals have been shown to aid in permitting muscle protein synthesis rather than stimulating it, but are still necessary for optimal gains in hypertrophy. The effect of a multi-ingredient compound has rarely been investigated, and thus this study aims to combine whey protein, leucine, creatine, calcium citrate and vitamin D and test it in a resistance exercise training program over 12 weeks. Another novel aspect in this study will be testing this supplement against a placebo of equal amounts of protein and amino acids, the placebo will contain collagen protein and the non-essential amino acids alanine and glycine. Finally, this study will recruit both men and women (ages 18-30) to determine possible effects of the supplement on muscle hypertrophy in both sexes. We hypothesize that the synergistic effect of the ingredients in our supplement will induce hypertrophy to a larger degree than resistance exercise training with the placebo, and that these benefits will persist in both male and female participants.
Detailed description
Supplementation in the form of whey protein, creatine and amino acids have all been shown to be a potent stimulus for muscle hypertrophy, when combined with resistance exercise. Burke et al. (2001) reported that males who supplemented with a combination of whey protein and creatine had greater increases in lean tissue mass and strength than those who supplemented with only whey protein or placebo. Hulmi at al. (2010) identified the most important component of whey to be its high concentration of the branched chain amino acid leucine, a critical amino acid for increasing muscle protein synthesis and suppressing muscle protein breakdown. The combination of leucine and whey protein has been shown to promote significant increases in muscle cross-sectional area. Vitamin D and calcium citrate have also been shown to enhance increases in muscle strength and lean mass, albeit in a permissive rather than stimulatory manner. Protein supplements have consistently been shown to promote greater gains in hypertrophy than their placebo counterparts, however these placebo supplements are often isoenergetic carbohydrate-based formulas. Few studies have compared two supplements with an equal amount of protein and amino acids, or have combined multiple beneficial ingredients to form a multicomponent supplement to promote greater gains in lean body mass and strength. Finally, sex differences in resistance training programs have rarely been studied, less so when testing a new supplement. Thus, the purpose of this study will be to determine whether there is an augmented effect of our nutritional supplement on the degree of hypertrophy in young male and female adults involved in a resistance training program. This nutritional supplement will be compared with a placebo containing an equivalent amount of collagen protein and non-essential amino acids. A secondary analysis will assess sex-based differences in strength and muscle size. Based on previous literature, we hypothesize that the combinatorial effect of whey protein, leucine, creatine, calcium citrate and vitamin D will induce hypertrophy to a larger degree than resistance exercise with the placebo in young adults.
A synergistic combination of ingredients with known benefits will be given twice daily to healthy young men and women (18-30 years old), (n = 22) in conjunction with a 12-week undulating periodized resistance training protocol, in which the repetition number and intensity of the training sessions will vary. Notable ingredients in this supplement include whey protein isolate (20g), leucine (2g), creatine monohydrate (2.5g), calcium citrate (300mg) and vitamin D (1000IU). The placebo condition, also comprised of males and females (18-30 years old), (n=22) will ingest a formulation containing an equivalent amount of collagen protein (20g), as well as an equivalent amount of amino acids (alanine, 1.4g and glycine, 0.6g). Pre- and post- assessments will include dual-energy x-ray absorptiometry (DEXA), one-rep maximum (1RM), and an ultrasound of the quadriceps. Four muscle biopsies will be taken from the vastus lateralis: 1) at rest prior to training, 2) 48h after an acute bout of exercise prior to training, 3) at rest post-training, and 4) 48h after an acute bout post-training. This allows for comparisons of acute and trained effects of both conditions. Using novel immunohistochemical staining procedures we will examine the resistance exercise-induced changes in fibre type distribution and fibre cross-sectional area in the supplement and placebo conditions as well as perform sex-based comparisons.
The novel aspect of this study will be the comparison of two isoenergetic, isonitrogenous supplements as stimulants for muscle protein accretion, as opposed to using carbohydrates as a placebo. The supplement will contain a new formulation of ingredients yet to be studied together. The synergistic effect of these ingredients will attempt to maximize muscle growth in both males and females, meaning that associations between sex and exercise can be assessed. This research will help us identify a new method to augment resistance exercise training through protein, amino acids, vitamins and minerals as well as expand the literature surrounding the effects of these ingredients on muscle hypertrophy.
Study design
- Primary purpose
- Other
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (participant, investigator)
- Number of arms
- 2
- Model description
- Parallel group design (with repeated measurements within each group)
| Arm | Type | Receives |
|---|---|---|
| Whey protein-based supplement | Experimental | Dietary Supplement: Whey protein-based supplementParticipants in the experimental condition will consume a supplement containing Whey Protein Isolate (20g) and other ingredients |
| Collagen protein-based supplement | Active comparator | Dietary Supplement: Collagen protein-based supplementParticipants in the experimental condition will consume a supplement containing Collagen protein (20g) and other ingredients |
Who may qualify
- Ages
- 18 to 30 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (3 listed)
- Aged 18-30 years old
- Healthy based on questionnaire responses (see exclusion criteria)
- Recreationally active (exercising ~2x/week) with some resistance training experience (no more than 2 times weekly) allowed
Key exclusion criteria (7 listed)
- Any acute or chronic illness, cardiac, pulmonary, liver, or kidney abnormalities, uncontrolled hypertension, insulin- or non-insulin dependent diabetes or other metabolic disorders-all ascertained through medical history screening questionnaires
- Arthritic conditions
- Individuals who consume any analgesic or anti-inflammatory drug(s), prescription or non-prescription, chronically will be excluded
- A history of neuromuscular complications
- Individuals on any medications known to affect protein metabolism (i.e. corticosteroids, non-steroidal anti-inflammatories, or prescription strength acne medications).
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Whey protein-based supplementHigh quality protein supplement to be consumed twice daily | Dietary supplement | Whey protein-based supplement |
| Collagen protein-based supplementLower quality protein supplement to be consumed daily | Dietary supplement | Collagen protein-based supplement |
Primary outcome
Muscle Mass and fiber cross-sectional area
Time frame: 10 weeks
dual energy x-ray absorptiometry (DXA), ultrasound
3 secondary outcomes
Satellite cell number, density, type I/type II fibre specific satellite cells and myonuclear domain
Time frame: 10 weeks
Strength
Time frame: 10 weeks
Fiber type distribution
Time frame: 10 weeks
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 7 Jan 2020.
- Background: PubMed 11591884Burke DG, Chilibeck PD, Davidson KS, Candow DG, Farthing J, Smith-Palmer T. The effect of whey protein supplementation with and without creatine monohydrate combined with resistance training on lean tissue mass and muscle strength. Int J Sport Nutr Exerc Metab. 2001 Sep;11(3):349-64. doi: 10.1123/ijsnem.11.3.349.
- Background: PubMed 14583440Paddon-Jones D, Sheffield-Moore M, Zhang XJ, Volpi E, Wolf SE, Aarsland A, Ferrando AA, Wolfe RR; New Collective Author. Amino acid ingestion improves muscle protein synthesis in the young and elderly. Am J Physiol Endocrinol Metab. 2004 Mar;286(3):E321-8. doi: 10.1152/ajpendo.00368.2003. Epub 2003 Oct 28.
- Background: PubMed 26864356Rondanelli M, Klersy C, Terracol G, Talluri J, Maugeri R, Guido D, Faliva MA, Solerte BS, Fioravanti M, Lukaski H, Perna S. Whey protein, amino acids, and vitamin D supplementation with physical activity increases fat-free mass and strength, functionality, and quality of life and decreases inflammation in sarcopenic elderly. Am J Clin Nutr. 2016 Mar;103(3):830-40. doi: 10.3945/ajcn.115.113357. Epub 2016 Feb 10.
- Background: PubMed 20565767Hulmi JJ, Lockwood CM, Stout JR. Effect of protein/essential amino acids and resistance training on skeletal muscle hypertrophy: A case for whey protein. Nutr Metab (Lond). 2010 Jun 17;7:51. doi: 10.1186/1743-7075-7-51.
- Background: PubMed 16686554Coburn JW, Housh DJ, Housh TJ, Malek MH, Beck TW, Cramer JT, Johnson GO, Donlin PE. Effects of leucine and whey protein supplementation during eight weeks of unilateral resistance training. J Strength Cond Res. 2006 May;20(2):284-91. doi: 10.1519/R-17925.1.
- Background: PubMed 25156880Tomlinson PB, Joseph C, Angioi M. Effects of vitamin D supplementation on upper and lower body muscle strength levels in healthy individuals. A systematic review with meta-analysis. J Sci Med Sport. 2015 Sep;18(5):575-80. doi: 10.1016/j.jsams.2014.07.022. Epub 2014 Aug 11.
- Background: PubMed 18059587Tang JE, Manolakos JJ, Kujbida GW, Lysecki PJ, Moore DR, Phillips SM. Minimal whey protein with carbohydrate stimulates muscle protein synthesis following resistance exercise in trained young men. Appl Physiol Nutr Metab. 2007 Dec;32(6):1132-8. doi: 10.1139/H07-076.
- Background: PubMed 25646324Verreijen AM, Verlaan S, Engberink MF, Swinkels S, de Vogel-van den Bosch J, Weijs PJ. A high whey protein-, leucine-, and vitamin D-enriched supplement preserves muscle mass during intentional weight loss in obese older adults: a double-blind randomized controlled trial. Am J Clin Nutr. 2015 Feb;101(2):279-86. doi: 10.3945/ajcn.114.090290. Epub 2014 Nov 26.
- Derived from this study: PubMed 39475860Wageh M, Fortino SA, Pontello R, Maklad A, McGlory C, Kumbhare D, Phillips SM, Parise G. The Effect of Multi-Ingredient Protein versus Collagen Supplementation on Satellite Cell Properties in Males and Females. Med Sci Sports Exerc. 2024 Nov 1;56(11):2125-2134. doi: 10.1249/MSS.0000000000003505.
- Derived from this study: PubMed 33756525Wageh M, Fortino SA, McGlory C, Kumbhare D, Phillips SM, Parise G. The Effect of a Multi-ingredient Supplement on Resistance Training-induced Adaptations. Med Sci Sports Exerc. 2021 Aug 1;53(8):1699-1707. doi: 10.1249/MSS.0000000000002641.
- Individual participant dataSharing planned: No. No plan to share individual participant data.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Gianni Parise, PhD principal investigator
McMaster University
Stuart Phillips, PhD principal investigator
McMaster University
2 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Whey protein-based supplement and Collagen protein-based supplement in people with Skeletal Muscle Hypertrophy, run by McMaster University at 2 sites in Canada.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 3 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 7 Jan 2020. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 2 sites in Canada. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Muscle Mass and fiber cross-sectional area (time frame: 10 weeks). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT03525197, which also lists 10 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 7 Jan 2020.