Randomized Control Trial of Bone Loading Exercises Versus Risedronate on Bone Health in Post-Menopausal Women
试验速览
- 阶段
- 3 期
- 状态
- 已完成
- 入组人数
- 276
- 试验地点
- 1
- 主要终点
- Change in Bone Strength Index of the Distal Tibia Based on Randomization to Control, Risedronate, or Exercise Group.
研究概览
简要总结
The purpose of this study is to identify the best way to prevent bone loss in the first years after menopause. The HOPS study will compare bone loss at 12 months in women: 1) who take calcium and vitamin D only; 2) who take calcium and vitamin D plus the medication "risedronate"; or 3) who take calcium and vitamin D plus participate in bone-loading exercises. Our central hypothesis is that improvements in bone health will be greater in women randomized to bone-loading exercises with calcium and vitamin D compared to women who take calcium and vitamin D only or women who take calcium and vitamin D plus risedronate.
详细描述
This randomized controlled trial (RCT) will compare changes after 12 months in bone structure, bone mineral density (BMD), and bone turnover in women with low bone mass who are within 5 years of menopause. Women will be randomized to one control and 2 treatment groups (n =103 per group): 1) calcium + vitamin D (CaD) alone (Control); 2) Bisphosphonate (BP) plus optimal CaD (Risedronate); and 3) a bone loading exercise program plus optimal CaD (Exercise). Our central hypothesis is that improvements in bone health will be greater in subjects randomized to the exercise group compared to subjects in either the control or risedronate groups. Specific Aims: Aims 1, 2, and 3 are to compare control, risedronate, and exercise group subjects on changes in bone structure at the tibia and hip (measured by pQCT and Hip Structural Analysis) (Aim 1) ; on changes in BMD at the total hip, femoral neck, and spine (Aim 2); and on changes in serum markers of bone formation and resorption (Aim 3). In addition, Aim 4 will explore relationships between adherence to exercise (% sessions attended) or adherence to risedronate (% pills taken) and changes in bone structure.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 19 Years 至 —（Adult, Older Adult）
- 性别
- Female
- 接受健康志愿者
- 否
入选标准
- •Women who are in their first 5 years of menopause
- •Have a T score between -1 and -2.49 at the femoral neck, total hip, or L1-L4 spine
- •Be 19 years of age or older
- •Have their health care provider's permission to enroll in the study.
排除标准
- •Have osteoporosis
- •Have a 10 yr probability of hip fracture >3% or major fracture >20% based on results of the fracture risk assessment (FRAX) tool
- •Currently take bisphosphonates, estrogen replacement therapy, glucocorticosteroids, or other drugs affecting bone
- •Currently participate in a resistance training or high impact weight bearing exercise program three or more times weekly
- •Weigh >300 lbs
- •Have abnormal results for the following laboratory tests: serum 25(OH)D; serum creatinine; serum calcium; parathyroid hormone (PTH); thyroid stimulating hormone (TSH).
- •Have Paget's disease, heart disease, uncontrolled hypertension, renal disease, or other concomitant conditions that prohibit participation in exercises, risedronate therapy, or use of CaD supplements.
研究组 & 干预措施
Control
Women randomized to the control group will receive calcium and vitamin D intake for 12 months. Calcium intake will be determined by analyzing 3 day dietary intake of calcium at baseline and then prescribing calcium carbonate supplements to ensure women have ~1200 mg of calcium daily. Vitamin D intake will be determined using baseline measures of Serum 25 (OH) D. Subjects who have serum D levels of 30 ng/ml or greater will be prescribed 1,000 IU vitamin D3 daily; subjects with levels of 20-29 ng/ml will be prescribed 2,000 IU Vitamin D3; and subjects with levels of 10-19 ng/ml will be prescribed 3,000 IU Vitamin D3.
干预措施: Calcium Carbonate (Drug)
Control
Women randomized to the control group will receive calcium and vitamin D intake for 12 months. Calcium intake will be determined by analyzing 3 day dietary intake of calcium at baseline and then prescribing calcium carbonate supplements to ensure women have ~1200 mg of calcium daily. Vitamin D intake will be determined using baseline measures of Serum 25 (OH) D. Subjects who have serum D levels of 30 ng/ml or greater will be prescribed 1,000 IU vitamin D3 daily; subjects with levels of 20-29 ng/ml will be prescribed 2,000 IU Vitamin D3; and subjects with levels of 10-19 ng/ml will be prescribed 3,000 IU Vitamin D3.
干预措施: Vitamin D3 (Drug)
Risedronate
Subjects in the risedronate group will take 35 mg of the bisphosphonate "risedronate" weekly for 12 months plus CaD. They will be asked to follow the protocol for administration of risedronate including taking the medication upon arising in the morning with an 8 ounce glass of water, remaining upright for at least 30 minutes, and having no oral intake except water for at least 30 minutes.
干预措施: Calcium Carbonate (Drug)
Risedronate
Subjects in the risedronate group will take 35 mg of the bisphosphonate "risedronate" weekly for 12 months plus CaD. They will be asked to follow the protocol for administration of risedronate including taking the medication upon arising in the morning with an 8 ounce glass of water, remaining upright for at least 30 minutes, and having no oral intake except water for at least 30 minutes.
干预措施: Vitamin D3 (Drug)
Risedronate
Subjects in the risedronate group will take 35 mg of the bisphosphonate "risedronate" weekly for 12 months plus CaD. They will be asked to follow the protocol for administration of risedronate including taking the medication upon arising in the morning with an 8 ounce glass of water, remaining upright for at least 30 minutes, and having no oral intake except water for at least 30 minutes.
干预措施: Risedronate (Drug)
Exercise
Subjects in the exercise group will participate in bone-loading exercises three times weekly in addition to taking CaD for 12 months. Women will exercise at community Young Men's Christian Association's fitness centers (YMCA) and exercises will be monitored by on-site Exercise Trainers. Exercises will consist of high-impact weight-bearing exercises (jogging with weighted vests) and resistance exercises for upper and lower extremities. Progressive increases in weight loads will be prescribed to provide maximal strength gains.
干预措施: Calcium Carbonate (Drug)
Exercise
Subjects in the exercise group will participate in bone-loading exercises three times weekly in addition to taking CaD for 12 months. Women will exercise at community Young Men's Christian Association's fitness centers (YMCA) and exercises will be monitored by on-site Exercise Trainers. Exercises will consist of high-impact weight-bearing exercises (jogging with weighted vests) and resistance exercises for upper and lower extremities. Progressive increases in weight loads will be prescribed to provide maximal strength gains.
干预措施: Vitamin D3 (Drug)
Exercise
Subjects in the exercise group will participate in bone-loading exercises three times weekly in addition to taking CaD for 12 months. Women will exercise at community Young Men's Christian Association's fitness centers (YMCA) and exercises will be monitored by on-site Exercise Trainers. Exercises will consist of high-impact weight-bearing exercises (jogging with weighted vests) and resistance exercises for upper and lower extremities. Progressive increases in weight loads will be prescribed to provide maximal strength gains.
干预措施: Bone-loading exercises (Behavioral)
结局指标
主要结局
Change in Bone Strength Index of the Distal Tibia Based on Randomization to Control, Risedronate, or Exercise Group.
时间窗: Baseline, 6, and 12 months
Change in Bone Strength Index (BSI) of the distal tibia based on randomization to Control, Risedronate, or Exercise group. BSI (mg2/mm4) at the 4% tibial site will be measured using peripheral quantitative computed tomography (pQCT).
次要结局
- Change in Bone Mineral Density (BMD) at the Spine (L1-L4) Based on Randomization to Control, Risedronate, or Exercise Group.(Baseline,6, and 12 months)
- Change in Serum Measures of Bone Resorption (Serum NTx) Based on Randomization to Control, Risedronate, or Exercise Group.(Baseline, 6, 12 months)