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| ID | Type | Description | Link |
|---|---|---|---|
| IRB Protocol Number 20001 | Other Identifier | Stanford University |
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Difficult to recruit, very poor compliance with interventions
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Overweight and obesity has been associated with a number of adverse pregnancy outcomes in women of reproductive age, including infertility and early pregnancy loss. Recent data suggests that overweight and obese patients are also at increased risk of recurrent pregnancy loss (RPL), a devastating condition that affects 1% of the fertile population.
The investigators propose a prospective, randomized controlled trial in which overweight and obese patients with unexplained recurrent pregnancy loss are enrolled in a structured, 6 month, weight loss program or provided routine counseling regarding the importance of weight loss. Pregnancy outcomes will then be followed to assess miscarriage rates. Metabolic outcomes, such as lipid and glucose profiles, will also be evaluated.
The purpose of this study is to investigate the impact of a structured weight loss program versus traditional weight-loss counseling on pregnancy outcomes in women with recurrent pregnancy loss. The study protocol is as follows:
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Structured Weight Loss | Experimental | Women randomized to this arm will meet with a registered dietician regularly for review of calorie recommendations and food diary. As well as regular clinic visits to measure patients weight. |
|
| Routine Weight Loss Counseling | Active Comparator | Patients are counseled by a physicians about the impact of maternal weight on fertility and pregnancy outcomes. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Structured Weight Loss Program | Behavioral | Those patients randomized to the structured weight loss group will have a formal evaluation and counseling a medical endocrinologist specializing in weight management. The structured weight loss program will consist of meeting with a dietician who will guide them on following a hypocaloric diet with a calorie deficit of 750kcal/day. The weight loss goal will be to lose 1-1.5 pounds/week. The participants will receive teaching utilizing the American Diabetes Association Exchange Lists and will receive sample meal plans. In addition, participants will be seen by the dietitian once a week for a month, then every 2 weeks for 2 months, then once per month for 3 months. Patients randomized to the study group will continue in the structured weight loss program for 6 months. |
| Measure | Description | Time Frame |
|---|---|---|
| Term live birth rate | 2.5 years |
| Measure | Description | Time Frame |
|---|---|---|
| Weight loss - goal for weight loss defined as 5 percent of enrollment body weight lost | 6 months | |
| Changes in triglyceride levels | 3 months | |
| Changes in high density lipoprotein levels |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Ruth Bunker Lathi | Stanford University | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Stanford University School of Medicine | Stanford | California | 94305 | United States |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 19007647 | Background | Practice Committee of tAmerican Society for Reproductive Medicine. Definitions of infertility and recurrent pregnancy loss. Fertil Steril. 2008 Nov;90(5 Suppl):S60. doi: 10.1016/j.fertnstert.2008.08.065. | |
| 12398226 | Background | Li TC, Makris M, Tomsu M, Tuckerman E, Laird S. Recurrent miscarriage: aetiology, management and prognosis. Hum Reprod Update. 2002 Sep-Oct;8(5):463-81. doi: 10.1093/humupd/8.5.463. |
| Label | URL |
|---|---|
| Stanford Fertility \& Reproductive Medicine Center | View source |
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|
| Routine Weight Loss Counseling | Behavioral | Participants randomized to the routine weight loss counseling group will receive the ACOG Patient Education pamphlets on obesity. |
|
| 3 months |
| Changes in alanine aminotransferase (ALT) levels | 3 months |
| Changes in fasting insulin levels | 3 months |
| Changes in postprandial insulin levels | 3 months |
| Changes in fasting glucose levels | 3 months |
| Changes in postprandial glucose levels | 3 months |
| Changes in hemoglobin A1c levels | 3 months |
| 15475226 | Background | James PT. Obesity: the worldwide epidemic. Clin Dermatol. 2004 Jul-Aug;22(4):276-80. doi: 10.1016/j.clindermatol.2004.01.010. |
| 20014418 | Background | Shirazian T, Raghavan S. Obesity and pregnancy: implications and management strategies for providers. Mt Sinai J Med. 2009 Dec;76(6):539-45. doi: 10.1002/msj.20148. |
| 8030695 | Background | Rich-Edwards JW, Goldman MB, Willett WC, Hunter DJ, Stampfer MJ, Colditz GA, Manson JE. Adolescent body mass index and infertility caused by ovulatory disorder. Am J Obstet Gynecol. 1994 Jul;171(1):171-7. doi: 10.1016/0002-9378(94)90465-0. |
| 9822077 | Background | Jensen MD. Medical management of obesity. Semin Gastrointest Dis. 1998 Oct;9(4):156-62. |
| 10873131 | Background | Bolumar F, Olsen J, Rebagliato M, Saez-Lloret I, Bisanti L. Body mass index and delayed conception: a European Multicenter Study on Infertility and Subfecundity. Am J Epidemiol. 2000 Jun 1;151(11):1072-9. doi: 10.1093/oxfordjournals.aje.a010150. |
| 18077317 | Background | van der Steeg JW, Steures P, Eijkemans MJ, Habbema JD, Hompes PG, Burggraaff JM, Oosterhuis GJ, Bossuyt PM, van der Veen F, Mol BW. Obesity affects spontaneous pregnancy chances in subfertile, ovulatory women. Hum Reprod. 2008 Feb;23(2):324-8. doi: 10.1093/humrep/dem371. Epub 2007 Dec 11. |
| 18068166 | Background | Metwally M, Ong KJ, Ledger WL, Li TC. Does high body mass index increase the risk of miscarriage after spontaneous and assisted conception? A meta-analysis of the evidence. Fertil Steril. 2008 Sep;90(3):714-26. doi: 10.1016/j.fertnstert.2007.07.1290. Epub 2008 Feb 6. |
| 15142995 | Background | Lashen H, Fear K, Sturdee DW. Obesity is associated with increased risk of first trimester and recurrent miscarriage: matched case-control study. Hum Reprod. 2004 Jul;19(7):1644-6. doi: 10.1093/humrep/deh277. Epub 2004 May 13. |
| 12055331 | Background | Wang JX, Davies MJ, Norman RJ. Obesity increases the risk of spontaneous abortion during infertility treatment. Obes Res. 2002 Jun;10(6):551-4. doi: 10.1038/oby.2002.74. |
| 19439294 | Background | Metwally M, Saravelos SH, Ledger WL, Li TC. Body mass index and risk of miscarriage in women with recurrent miscarriage. Fertil Steril. 2010 Jun;94(1):290-5. doi: 10.1016/j.fertnstert.2009.03.021. Epub 2009 May 12. |
| 9688382 | Background | Clark AM, Thornley B, Tomlinson L, Galletley C, Norman RJ. Weight loss in obese infertile women results in improvement in reproductive outcome for all forms of fertility treatment. Hum Reprod. 1998 Jun;13(6):1502-5. doi: 10.1093/humrep/13.6.1502. |
| ID | Term |
|---|---|
| D009765 | Obesity |
| D050177 | Overweight |
| D000022 | Abortion, Spontaneous |
| ID | Term |
|---|---|
| D044343 | Overnutrition |
| D009748 | Nutrition Disorders |
| D009750 | Nutritional and Metabolic Diseases |
| D001835 | Body Weight |
| D012816 | Signs and Symptoms |
| D013568 | Pathological Conditions, Signs and Symptoms |
| D011248 | Pregnancy Complications |
| D005261 | Female Urogenital Diseases and Pregnancy Complications |
| D000091642 | Urogenital Diseases |
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