Risks and benefits of moderate beer intake (with and without alcohol) on osteoporosis in postmenopausal women
| ISRCTN | ISRCTN13825020 |
|---|---|
| DOI | https://doi.org/10.1186/ISRCTN13825020 |
| Protocol serial number | IRB00003099 |
| Sponsor | CIBER (Consorcio Centro de Investigación Biomédica en Red, M.P.) |
| Funder | European Research Advisory Board (ERAB): The European Foundation for Alcohol Research |
- Submission date
- 13/11/2017
- Registration date
- 02/01/2018
- Last edited
- 05/07/2023
- Recruitment status
- No longer recruiting
- Overall study status
- Completed
- Condition category
- Musculoskeletal Diseases
Plain English summary of protocol
Background and study aims
Hip fractures are a major public health problem worldwide, contributing to decrease quality of life and premature death. More than two-thirds of all hip fractures occur in women due to postmenopausal osteoporosis (bone loss that occurs after menopause due to changes in hormone levels). To improve nutrition and lifestyle habits, as well as to increase physical activity are the best weapons to reduce the incidence of osteoporosis (and hip fractures). The aim of this study is to evaluate the beneficial effects of moderate beer intake (regular beer and dealcoholized beer) on bone mineral density (BMD) in postmenopausal women.
Who can participate?
Women aged 45 to 70 years old.
What does the study involve?
Participants are allocated to one of three groups. Those in the first group drink water for two years at dinner. Those in the second group receive dealcoholized beer for two years. Those in the last group receive regular beer (330 mL/day) for two years. In order to know whether beer components (e.g. ethanol, silicon, polyphenols) promote bone formation and/or reduce bone resorption this study will investigate the rates of bone formation and bone loss by measuring their biomarkers in serum and urine at baseline and at six, 12 and 24 months.
What are the possible benefits and risks of participating?
As we explained before, it has been suggested that moderate beer intake may have a protective role in osteoporosis, by increasing bone formation or decreasing bone resorption by several mechanisms. This study will allow to analyse bone mineral density and other mechanisms by which beer or dealcoholised beer may prevent bone loss and increase bone formation, reducing medication and improving live quality. There are no risks to participate in this study as long as the exclusion criteria are followed. The study was conducted according to the Declaration of Helsinki of the World Medical Association.
Where is the study run from?
Hospital Clínic of Barcelona (IDIBAPS) (Spain)
When is the study starting and how long is it expected to run for?
January 2017 to August 2021
Who is funding the study?
CIBER (Consorcio Centro de Investigación Biomédica en Red, M.P) (Spain)
Who is the main contact?
Dr Rosa MaríaLamuela-Raventós (Scientific)
Contact information
Scientific
Consorcio Centro de Investigacion Biomedica en Red, M.P. (CIBER)
Instituto de Salud Carlos III
C/Monforte de Lemos 3-5
Pabellon 11
Madrid
28029
Spain
 ORCID ID |
0000-0002-1287-4560 |
|---|
Study information
| Primary study design | Interventional |
|---|---|
| Study design | A long-term (2 years) parallel-group controlled open intervention trial |
| Secondary study design | Non randomised study |
| Study type | Participant information sheet |
| Scientific title | Effects of prenylflavonoids of beer and dealcoholised beer on bone mineral density and molecular bone markers |
| Study acronym | POLYBOST |
| Study objectives | Due to its polyphenol, silicon and ethanol content, moderate beer consumption may participate to prevent osteoporosis in postmenopausal women, providing beneficial effects on bone tissue, stimulating human osteoblasts formation, reducing bone fragility and increasing bone mineral density (BMD). |
| Ethics approval(s) | Institutional Review Board of the University of Barcelona, 09/03/2017 |
| Health condition(s) or problem(s) studied | Bone Mineral Density (BMD) |
| Intervention | Current intervention as of 20/05/2022: Participants are assigned to the following intervention groups: Intervention 1: Control group with water for 2 years (ERB-C). Intervention 2: 660 mL/day of dealcoholised beer for 2 years (ERB-D). Intervention 3: 330 mL/day (15 g of ethanol/day) of regular beer for 2 years (ERB-A). After a run-in period of 15 days, in which subjects are asked not to consume any alcoholic beverage or alcohol-free beer, they receive 15 g of ethanol/day as regular beer, the same amount of nonalcoholic components (polyphenols and silicon) in alcohol-free beer and the same amount of water at dinner during two years in a prospective parallel and controlled trial. The follow-up for all interventions is at baseline, six months, 12 months and 24 months. The compliance of interventions are assessed by data from questionnaires and by determination of isoxanthohumol levels in urine, a biomarker of beer intake. Previous intervention: Participants are randomly assigned following simple randomisation procedures (computerised random numbers) to 1 of 3 intervention groups. Intervention 1: Control group with water for 2 years (ERB-C). Intervention 2: 660 mL/day of dealcoholised beer for 2 years (ERB-D). Intervention 3: 330 mL/day (15 g of ethanol/day) of regular beer for 2 years (ERB-A). After a run-in period of 30 days, in which subjects are asked not to consume any alcoholic beverage or alcohol-free beer, they receive 15 g of ethanol/day as regular beer, the same amount of nonalcoholic components (polyphenols and silicon) in alcohol-free beer and the same amount of water at dinner during two years in a prospective, randomized, parallel and controlled trial. The follow-up for all interventions is at baseline, six months, 12 months and 24 months. The compliance of interventions are assessed by data from questionnaires and by determination of isoxanthohumol levels in urine, a biomarker of beer intake. |
| Intervention type | Other |
| Primary outcome measure(s) |
1. Bone mineral density is measured using the dual energy X-ray absorptiometry (DXA) at baseline, 1 year and at the end of the intervention period |
| Key secondary outcome measure(s) |
1. At the beginning, 6 months, 1 year and at the end of each intervention period a medical assessment will be performed which included: clinical history (personal questionnaire), anthropometric measurements (measured using stand-alone stadiometer and a tape measure), clinical blood pressure (measured using and electronic pressure Omron apparatus) and full blood analysis (glucose, glycated hemoglobin, triglycerids, total cholesterol, HDLc, LDLc, lipoprotein (a), creatinine, calcium, phosphatase, PTH, 25OHD measured using blood samples) and the collection of 24-h urine samples |
| Completion date | 31/08/2021 |
Eligibility
| Participant type(s) | Healthy volunteer |
|---|---|
| Age group | Adult |
| Sex | Female |
| Target sample size at registration | 60 |
| Total final enrolment | 37 |
| Key inclusion criteria | Current participant inclusion criteria as of 20/05/2022: 1. Postmenopausal women between 45 and 70 years of age 2. FSH 23-116 U/l 3. Estradiol (E2) <37 pg/ml 4. Amenorrhea ≥12 months Previous participant inclusion criteria: 1. Women between 45 and 70 years of age within 5 years of menopause 2. FSH > 3 Miu/mL 3. Estradiol (E2) = 30 pg/mL 4. Amenorrhea ≥ 12 months |
| Key exclusion criteria | Current participant exclusion criteria as of 08/08/2022: 1. Patients with known diseases affecting bone metabolism (rheumatoid arthritis, hyperthyroidism, hypercortisolism, renal bone disease, chronic liver disease, among others) 2. Use of drugs affecting bone metabolism (fluorides, bisphosphonates, calcitonin, teriparatide or parathormone, strontium ranelate, SERMs, estrogen therapy, anabolic steroids, chronic glucocorticoids (>3 months), cytostatics, antiandrogens, and antiepileptics) 3. Participants who received silicon or polyphenol supplements Previous participant exclusion criteria as of 20/05/2022: 1. Patients with known diseases affecting bone metabolism (rheumatoid arthritis, hyperthyroidism, hypercortisolism, renal bone disease, chronic liver disease, among others) 2. Participants who received silicon or polyphenol supplements Previous participant exclusion criteria: 1. Patients with known diseases affecting bone metabolism (rheumatoid arthritis, hyperthyroidism, surgical menopause, hypercortisolism, renal bone disease, chronic liver disease, among others) 2. Use of drugs affecting bone metabolism (fluorides, bisphosphonates, calcitonin, teriparatide or parathormone, strontium ranelate, SERMs, estrogen therapy, anabolic steroids, chronic glucocorticoids (> 3 months), cytostatics, antiandrogens and antiepileptics) 3. Participants who received silicon or polyphenol supplements |
| Date of first enrolment | 01/04/2017 |
| Date of final enrolment | 31/07/2019 |
Locations
Countries of recruitment
- Spain
Study participating centre
Barcelona
08036
Spain
Results and Publications
| Individual participant data (IPD) Intention to share | No |
|---|---|
| IPD sharing plan summary | Not expected to be made available |
| IPD sharing plan | At this moment, our participant-level data is not expected to be available, there isn’t enough information. As researchers, we are responsible to share the data generated by our interventional clinical trial. Following the ethical obligation, we could share individual participant data that underlie the results reported in an article as soon as the article would be written to an end date to investigators or researchers who want to provide new proposals. All personal data will be protected. |
Study outputs
| Output type | Details | Date created | Date added | Peer reviewed? | Patient-facing? |
|---|---|---|---|---|---|
| Results article | 15/11/2022 | 06/04/2023 | Yes | No | |
| Results article | Effect on cardiovascular health | 04/07/2023 | 05/07/2023 | Yes | No |
| Participant information sheet | Participant information sheet | 11/11/2025 | 11/11/2025 | No | Yes |
Editorial Notes
05/07/2023: Publication reference added.
06/04/2023: Publication reference added.
08/08/2022: The participant exclusion criteria have been updated.
20/05/2022: The following changes have been made:
1. The study design has been changed from "A long-term (2 years) randomised parallel-group controlled open intervention trial" to "A long-term (2 years) parallel-group controlled open intervention trial".
2. The secondary study design has been changed from "Randomised parallel trial" to "Non randomised study".
3. The intervention has been updated.
4. The participant inclusion criteria has been updated.
5. The participant exclusion criteria has been updated.
6. The publication and dissemination plan has been updated.
7. The plain English summary has been updated to reflect the changes above.
13/07/2021: The total final enrolment number was added.
12/07/2021: The following changes were made to the trial record:
1. The overall trial end date was changed from 31/07/2021 to 31/08/2021.
2. The intention to publish date was changed from 01/01/2021 to 01/10/2022.
3. The publication and dissemination plan was updated.
09/06/2020: The following changes were made to the trial record:
1. The recruitment end date was changed from 30/04/2018 to 31/07/2019.
2. The overall end date was changed from 31/12/2019 to 31/07/2021.
3. The intention to publish date was changed from 01/12/2019 to 01/01/2021.
4. The plain English summary was updated to reflect these changes.
5. The publication and dissemination plan was updated.
22/01/2018: The recruitment end date was changed from 31/12/2017 to 30/04/2018.
