Excessive Weight Gain in Pregnancy as Antepartum ConditionBHIPNCT01693510
Be Healthy in Pregnancy (B-HIP): A Trial to Study Nutrition and Exercise Approaches for Healthy Pregnancy
A study testing Exercise and Nutrition Intervention in people with Excessive Weight Gain in Pregnancy as Antepartum Condition and Obesity, run by McMaster University at 1 site in Canada.
Trial summary
Weight gained during pregnancy is referred to as gestational weight gain (GWG). Excess GWG is a widespread problem that occurs in 55-75% of Canadian women who enter pregnancy overweight or obese (a group that represents over 50 % of all pregnant women) and about 40% women of normal weight. Read more about this study
- Who is it for?
- Ages 18 years and older, women only
- Conditions the study is for
- Excessive Weight Gain in Pregnancy as Antepartum Condition, Obesity, Weight Gain
- What is being tested?
- Exercise and Nutrition Intervention
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 110 participants
- Where
- 1 siteCanada
- Study dates
- 12 Nov 2012to 30 Apr 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 years and older
- Women only
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Healthy pregnant females > 18 years of age with singleton pregnancies (either nulliparous or multiparous); less than 20 weeks gestation; pre-pregnancy BMI of >25 and < 40 kg/m2 (owing to the fact that severe obesity with BMI> 40 may have limitations with respect to physical activity); plans to deliver at a Hamilton Health Sciences, St. Joseph's Healthcare Hamilton, Joseph Brant Hospital or by home birth but willing to attend research visits at the McMaster University Medical Centre site; approval of primary care provider; and able to provide signed informed consent.
Who cannot join
- Unable to understand some English; currently breastfeeding previous child; pregnancy resulting from in vitro fertilization; known contraindications to exercise as recommended by the Canadian clinical practice guidelines for pregnancy; severe chronic gastrointestinal diseases or conditions; refusal to consume dairy foods due to intolerance or dislike; any significant heart, kidney, liver or pancreatic diseases; pre-existing diabetes; or a depression score above 13 on the validated Edinburgh Depression scale as that is indicative of severe depression and should be referred for treatment; currently smoking.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Be Healthy in Pregnancy (B-HIP): A Randomized Clinical Trial (RCT) to Study Nutrition and Exercise Approaches for Healthy Pregnancy
Weight gained during pregnancy is referred to as gestational weight gain (GWG). Excess GWG is a widespread problem that occurs in 55-75% of Canadian women who enter pregnancy overweight or obese (a group that represents over 50 % of all pregnant women) and about 40% women of normal weight. Excess GWG is associated with complications of pregnancy, such as post-partum weight retention, type 2 diabetes, elevated fats in the blood, and high blood pressure and may also lead to problems with the health of the newborn child. Our research aims to find ways to control GWG by developing new and practical approaches to diet and exercise targeted to overweight pregnant women that hold promise of improving their health both during pregnancy and thereafter. The experimental intervention is a diet of higher protein provided by dairy foods combined with an exercise program modified to the abilities of overweight pregnant women; and the control is the usual advice given by their primary care providers, information on healthy pregnancy from Health Canada, and a focus group session exploring women's experiences with exercise, nutrition, and gestational weight gain. The results of this study will allow us to design future large clinical studies in all pregnant women to help control the weight gain in all pregnant women.
Read the detailed description
This will be a 2-arm randomized 1-site trial. Recruitment will be within the community care clinics by poster and flyer advertisements.
Primary research question: Among pregnant women, does introducing a structured and monitored nutrition and exercise program (treatment) in early pregnancy compared with Usual Prenatal Care (control) increase the likelihood of attaining gestational weight gain within the Institute of Medicine (IOM) guidelines over the pregnancy period?
Experimental and Control groups: Both groups of mothers and their health care providers will be given the Health Canada materials on "Healthy Weight Gain during Pregnancy", "Eating Well with Canada's Food Guide" and the "Pregnancy Weight Gain Calculator". Baseline information will be recorded for eligible and consenting women after which they will be randomized to Experimental or Control group. Nutrition intake, physical measures and physical activity will be recorded at baseline, 26-28 weeks and 36-38 weeks of gestation and 6 months post partum in the same manner for both groups. All mothers will receive the study promotional materials and small incentives. Also, all mothers will be followed by their primary care provider and have usual access to Public Health.
- Conditions
- Excessive Weight Gain in Pregnancy as Antepartum Condition, Obesity, Weight Gain, Type 2 Diabetes
- Being tested
- Exercise and Nutrition Intervention
- Keywords
- Excess gestational weight gain (GWG), Obesity, Type 2 diabetes, Elevated fats in the blood, High blood pressure
- Medical subject headings
- Obesity, Weight Gain, Diabetes Mellitus, Type 2, Hypertension
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Exercise and Nutrition InterventionBehavioural
Both Intervention and Control participants and their care providers receive the new Health Canada guide on Healthy Weight Gain During Pregnancy. For the Experimental Group, the exercise intervention includes a custom-designed pregnancy-specific group walking class of 30-60 min. 1x/week and a prescribed at-home walking program to reach 10,000 steps/day. The nutrition intervention is a high protein (25% energy) low-fat dairy food plan designed to meet energy needs and with individualized counselling.
| Study group | Role | What they receive |
|---|---|---|
| Exercise and Nutrition Intervention | Experimental | Nutrition intervention: The proposed nutrition plan is a high protein (25% energy) diet providing low fat dairy foods and individualized to energy needs. Dairy foods are accepted by women during pregnancy as a healthy choice (from pilot study) and in our recent birth cohort study, women consumed an average of 3 or more servings of dairy per day. Exercise intervention: Most previous studies and published guidance focus on aerobic exercise such as walking as it is the easiest physical activity to implement in pregnancy in terms of setting goals of steps and monitoring of adherence using accelerometer-type devices. Walking is also the most practical since women reduced moderate and vigorous physical activity during pregnancy but levels of walking were maintained. Receives: Behavioral: Exercise and Nutrition Intervention |
| Usual Prenatal Care | No intervention | Mothers in the Control Group will be followed by their primary care provider and have usual access to public health. In addition, women will have the opportunity to attend one focus group session exploring women's experiences with nutrition, exercise, and weight gain in pregnancy. |
What is being measured
The primary outcome is the main question the study is designed to answer.
Gestational weight gain within IOM guidelines
Among pregnant women (population), does introducing a structured and monitored nutrition and exercise program (treatment) in early pregnancy compared with Usual Prenatal Care (control) increase the likelihood of attaining GWG within the IOM guidelines (outcome) over the pregnancy period?
Measured: Change from baseline at 38 weeks gestation
Secondary outcomes (1)
Bone outcomes
Bone status in mothers and infants at 6 months after delivery will be assessed against reference data for bone mineral content (infants) or bone mineral density (mothers) and anthropomorphic outcomes in babies (weight and height).
Measured: 6 months post-partum
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted26 Sep 2012 (estimated)
- Study start12 Nov 2012
- Primary completion30 Apr 2018
- Study completion30 Apr 2019
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (3)Papers the sponsor has linked to this study.
- Other trials for Excessive Weight Gain in Pregnancy as Antepartum ConditionStudies of the same condition, open and under way.
- More trials run by McMaster UniversityThe sponsor's other registered studies.
- 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
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind
- Who is masked
- Participant, Outcomes assessor
- Enrolment
- 110 participants (estimated)
Sponsor and investigators
- Lead sponsor
- McMaster University
- Sponsor type
- University, hospital or other
- Collaborators
- Dairy Farmers of Canada
- Responsible party
- Sponsor
- Investigators
- Stephanie A. Atkinson, PhD, Principal investigator, McMaster University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01693510
- Sponsor's protocol ID
- BHIP-DFC
- Acronym
- BHIP
- Status last verified
- Mar 2019
- First submitted
- 20 Sep 2012
- Last updated
- 1 Oct 2020
- Results posted
- No
- Data monitoring committee
- Yes
- Individual data sharing
- No
Publications
Palacios C, Kostiuk LL, Cuthbert A, Weeks J. Vitamin D supplementation for women during pregnancy. Cochrane Database Syst Rev. 2024 Jul 30;7(7):CD008873. doi: 10.1002/14651858.CD008873.pub5.
PubMed 39077939Maran A, Atkinson SA, Bertram V, Vanniyasingam T, Thabane L, Mottola MF, Phillips SM; BHIP study team. Exploring comparative assessment of adiposity measures during pregnancy and postpartum. Clin Nutr ESPEN. 2022 Jun;49:365-371. doi: 10.1016/j.clnesp.2022.03.021. Epub 2022 Mar 23.
PubMed 35623838Perreault M, Atkinson SA, Meyre D, Fusch G, Mottola MF; BHIP Study Team. Summer Season and Recommended Vitamin D Intake Support Adequate Vitamin D Status throughout Pregnancy in Healthy Canadian Women and Their Newborns. J Nutr. 2020 Apr 1;150(4):739-746. doi: 10.1093/jn/nxz276.
PubMed 31732740
Study at a glance
From the registry record, last updated by the sponsor on 1 Oct 2020. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Be Healthy in Pregnancy (B-HIP): A Randomized Clinical Trial (RCT) to Study Nutrition and Exercise Approaches for Healthy Pregnancy
- ClinicalTrials.gov ID
- NCT01693510
- Acronym / sponsor ID
- BHIP / BHIP-DFC
- Conditions
- Excessive Weight Gain in Pregnancy as Antepartum Condition, Obesity, Weight Gain, Type 2 Diabetes
- Keywords
- Excess gestational weight gain (GWG), Obesity, Type 2 diabetes, Elevated fats in the blood, High blood pressure
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 110 participants (estimated)
- Lead sponsor
- McMaster UniversityUniversity, hospital or other
- Collaborators
- Dairy Farmers of Canada
- Study start
- 12 Nov 2012 (actual)
- Primary completion
- 30 Apr 2018 (actual)
- Study completion
- 30 Apr 2019 (actual)
- First posted
- 26 Sep 2012 (estimated)
- 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.
Weight gained during pregnancy is referred to as gestational weight gain (GWG). Excess GWG is a widespread problem that occurs in 55-75% of Canadian women who enter pregnancy overweight or obese (a group that represents over 50 % of all pregnant women) and about 40% women of normal weight. Excess GWG is associated with complications of pregnancy, such as post-partum weight retention, type 2 diabetes, elevated fats in the blood, and high blood pressure and may also lead to problems with the health of the newborn child. Our research aims to find ways to control GWG by developing new and practical approaches to diet and exercise targeted to overweight pregnant women that hold promise of improving their health both during pregnancy and thereafter. The experimental intervention is a diet of higher protein provided by dairy foods combined with an exercise program modified to the abilities of overweight pregnant women; and the control is the usual advice given by their primary care providers, information on healthy pregnancy from Health Canada, and a focus group session exploring women's experiences with exercise, nutrition, and gestational weight gain. The results of this study will allow us to design future large clinical studies in all pregnant women to help control the weight gain in all pregnant women.
Detailed description
This will be a 2-arm randomized 1-site trial. Recruitment will be within the community care clinics by poster and flyer advertisements.
Primary research question: Among pregnant women, does introducing a structured and monitored nutrition and exercise program (treatment) in early pregnancy compared with Usual Prenatal Care (control) increase the likelihood of attaining gestational weight gain within the Institute of Medicine (IOM) guidelines over the pregnancy period?
Experimental and Control groups: Both groups of mothers and their health care providers will be given the Health Canada materials on "Healthy Weight Gain during Pregnancy", "Eating Well with Canada's Food Guide" and the "Pregnancy Weight Gain Calculator". Baseline information will be recorded for eligible and consenting women after which they will be randomized to Experimental or Control group. Nutrition intake, physical measures and physical activity will be recorded at baseline, 26-28 weeks and 36-38 weeks of gestation and 6 months post partum in the same manner for both groups. All mothers will receive the study promotional materials and small incentives. Also, all mothers will be followed by their primary care provider and have usual access to Public Health.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (participant, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Exercise and Nutrition Intervention | Experimental | Behavioral: Exercise and Nutrition InterventionNutrition intervention: The proposed nutrition plan is a high protein (25% energy) diet providing low fat dairy foods and individualized to energy needs. Dairy foods are accepted by women during pregnancy as a healthy choice (from pilot study) and in our recent birth cohort study, women consumed an average of 3 or more servings of dairy per day. Exercise intervention: Most previous studies and published guidance focus on aerobic exercise such as walking as it is the easiest physical activity to implement in pregnancy in terms of setting goals of steps and monitoring of adherence using accelerometer-type devices. Walking is also the most practical since women reduced moderate and vigorous physical activity during pregnancy but levels of walking were maintained. |
| Usual Prenatal Care | No intervention | –Mothers in the Control Group will be followed by their primary care provider and have usual access to public health. In addition, women will have the opportunity to attend one focus group session exploring women's experiences with nutrition, exercise, and weight gain in pregnancy. |
Who may qualify
- Ages
- 18 years and older
- Sex
- Female only
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (1 listed)
- Healthy pregnant females > 18 years of age with singleton pregnancies (either nulliparous or multiparous); less than 20 weeks gestation; pre-pregnancy BMI of >25 and < 40 kg/m2 (owing to the fact that severe obesity with BMI> 40 may have limitations with respect to physical activity); plans to deliver at a Hamilton Health Sciences, St. Joseph's Healthcare Hamilton, Joseph Brant Hospital or by home birth but willing to attend research visits at the McMaster University Medical Centre site; approval of primary care provider; and able to provide signed informed consent.
Key exclusion criteria (1 listed)
- Unable to understand some English; currently breastfeeding previous child; pregnancy resulting from in vitro fertilization; known contraindications to exercise as recommended by the Canadian clinical practice guidelines for pregnancy; severe chronic gastrointestinal diseases or conditions; refusal to consume dairy foods due to intolerance or dislike; any significant heart, kidney, liver or pancreatic diseases; pre-existing diabetes; or a depression score above 13 on the validated Edinburgh Depression scale as that is indicative of severe depression and should be referred for treatment; currently smoking.
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 |
|---|---|---|
| Exercise and Nutrition InterventionBoth Intervention and Control participants and their care providers receive the new Health Canada guide on Healthy Weight Gain During Pregnancy. For the Experimental Group, the exercise intervention includes a custom-designed pregnancy-specific group walking class of 30-60 min. 1x/week and a prescribed at-home walking program to reach 10,000 steps/day. The nutrition intervention is a high protein (25% energy) low-fat dairy food plan designed to meet energy needs and with individualized counselling. | Behavioural | Exercise and Nutrition Intervention |
Primary outcome
Gestational weight gain within IOM guidelines
Time frame: Change from baseline at 38 weeks gestation
Among pregnant women (population), does introducing a structured and monitored nutrition and exercise program (treatment) in early pregnancy compared with Usual Prenatal Care (control) increase the likelihood of attaining GWG within the IOM guidelines (outcome) over the pregnancy period?
1 secondary outcome
Bone outcomes
Time frame: 6 months post-partum
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 1 Oct 2020.
- Derived from this study: PubMed 39077939Palacios C, Kostiuk LL, Cuthbert A, Weeks J. Vitamin D supplementation for women during pregnancy. Cochrane Database Syst Rev. 2024 Jul 30;7(7):CD008873. doi: 10.1002/14651858.CD008873.pub5.
- Derived from this study: PubMed 35623838Maran A, Atkinson SA, Bertram V, Vanniyasingam T, Thabane L, Mottola MF, Phillips SM; BHIP study team. Exploring comparative assessment of adiposity measures during pregnancy and postpartum. Clin Nutr ESPEN. 2022 Jun;49:365-371. doi: 10.1016/j.clnesp.2022.03.021. Epub 2022 Mar 23.
- Derived from this study: PubMed 31732740Perreault M, Atkinson SA, Meyre D, Fusch G, Mottola MF; BHIP Study Team. Summer Season and Recommended Vitamin D Intake Support Adequate Vitamin D Status throughout Pregnancy in Healthy Canadian Women and Their Newborns. J Nutr. 2020 Apr 1;150(4):739-746. doi: 10.1093/jn/nxz276.
- Individual participant dataSharing planned: No
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.
Stephanie A. Atkinson, PhD principal investigator
McMaster University
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Exercise and Nutrition Intervention in people with Excessive Weight Gain in Pregnancy as Antepartum Condition and Obesity, run by McMaster University at 1 site 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 1 inclusion and 1 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 1 Oct 2020. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site 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?
Gestational weight gain within IOM guidelines (time frame: Change from baseline at 38 weeks gestation). 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 NCT01693510, which also lists 3 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 1 Oct 2020.