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Study of Adults With Low Growth Hormone Who Survived Childhood Cancer Where Treatment Caused Low Bone Density

S

State University of New York - Upstate Medical University

Status

Terminated

Conditions

Osteopenia

Treatments

Dietary Supplement: Vitamin D supplement
Drug: bisphosphonate therapy (risedronate)
Dietary Supplement: Calcium

Study type

Interventional

Funder types

Other
Industry

Identifiers

NCT00145704
SUNY UMU IRB # 4689

Details and patient eligibility

About

The purpose of this project is to evaluate the hypothesis that bisphosphonate treatment given to growth hormone deficient patients (regardless of current growth hormone replacement therapy status and without changing that status) significantly increases total body bone mineral density during an eighteen month period of treatment combined with calcium and Vitamin D when compared to calcium and Vitamin D treatment alone.

Full description

Adult patients with Dexa scan (bone scan) z-scores < -1.0 (meaning low bone density) in at least one site will be selected for randomization. All patients who qualify for randomization will undergo baseline bloodwork for serum bone specific alkaline phosphatase (BSAP) and n-terminal telopeptides of collagen (NTX) levels. Recent bloodwork obtained as part of their ongoing long-term Pediatric Oncology and/or Endocrine clinic follow-up evaluation will be reviewed to exclude any baseline correctable confounding causes of osteopenia (low bone density). All women of childbearing potential will have a pregnancy test.

For those patients already on growth hormone replacement therapy, growth hormone will be administered as per standard of care, with standard dose ranges adjusted based upon IGF-1(Insulin like growth factor) monitoring. Those patients not currently receiving growth hormone replacement therapy will not be placed on therapy as a part of this study. Patients on and off growth hormone replacement therapy will be randomized in a block design to the two treatment arms to assure equal numbers in each treatment arm. The bisphosphonate to be utilized will be provided to the Arm II patients at no charge. All Arm II patients will receive the same bisphosphonate regimen, Risedronate 35 mg per oral once weekly for 18 months. All patients on arms I and II will also receive Vitamin D (400 IU p.o. daily) and calcium carbonate (500 mg p.o. twice daily) free of charge for eighteen months.

Enrollment

6 patients

Sex

All

Ages

18+ years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • Growth hormone deficiency as a complication of treatment for pediatric malignancy
  • Dexa (bone densitometry)with z-scores of < -1.0 in at least one site

Exclusion criteria

  • Dexa (bone densitometry)with z-scores < -1.0 in at least one site
  • Subjects <18 years old
  • Pregnant or lactating patients
  • Any contraindication for or unwillingness to consider bisphosphonate treatment
  • Inability or unwillingness to undergo bone density evaluation
  • Other correctable causes of decreased bone mineral density

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

None (Open label)

6 participants in 2 patient groups

Growth Hormone only
Active Comparator group
Description:
No bisphosphonate therapy given, participants will take Vitamin D 400 IU daily for 18 months, as well as calcium carbonate 500 mg twice a day for 18 months.
Treatment:
Dietary Supplement: Calcium
Dietary Supplement: Vitamin D supplement
Growth Hormone & Bisphosphonate Therapy
Experimental group
Description:
Bisphosphonate Therapy-Risedronate 35 mg once a week for 18 months, Vitamin D 400 IU daily for 18 months and calcium carbonate 500 mg twice daily for 18 months
Treatment:
Dietary Supplement: Calcium
Drug: bisphosphonate therapy (risedronate)
Dietary Supplement: Vitamin D supplement

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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