Cross-sectional studycited by the Tayebat archiveabstract only checked A-LEG-13 standard review

Peanut and lupin cross-allergy

Cross-allergenicity of peanut and lupine: the risk of lupine allergy in patients allergic to peanuts.

Overview

Moneret-Vautrin DA et al.. J Allergy Clin Immunol 1999 · PMID 10518837 · DOI 10.1016/s0091-6749(99)70303-9

Many peanut-allergic patients also reacted to lupin flour.

Does the study support the specific claim? Partly · Methodological quality: moderate

Original publication

Plain-language summary

Study explained simply
What did the researchers want to find out?

Test cross-allergy

How was the study done?

Clinical tests

How many people, animals or samples were studied?

24 patients

What was actually found?

7 of 8 reacted to lupin

How large was the observed effect?

Not applicable

What do the results mean in everyday life?

Peanut-allergic people should beware of lupin.

What are the study's limitations?

Small

What does it say about Elawady's specific claim?

Allergy-specific

Do the results apply to Germany and Europe?

High

What can explicitly not be concluded from this study?

Cannot show risk for non-allergic people.

Scientific in-depth review

1. Full reference

Authors
Moneret-Vautrin DA, Guérin L, Kanny G, Flabbee J, Frémont S, Morisset M
Journal
J Allergy Clin Immunol
Year
1999
Identifier
PMID 10518837 DOI 10.1016/s0091-6749(99)70303-9
Verification
verified – PubMed E-utilities efetch, 2026-10-25
Retracted
no
Corrections
none
Extent checked
abstract only
Conflicts of interest and funding

not stated in abstract

2. Research question

Cross-allergy to lupine in peanut-allergic patients.

3. Study design and population

Study design
Cross-sectional study – Clinical-laboratory study (skin prick, DBPCFC, IgE, immunoblots)
Population

Peanut-allergic patients

Country

France (inferred from author affiliation; not stated in abstract)

Period

Not stated

Sample size

24 patients (8 challenged)

Inclusion and exclusion criteria

Peanut allergy

4. Methods and endpoints

Exposure / intervention

Lupine flour

Comparator

Peanut

Endpoints

Skin test, oral challenge, IgE cross-reactivity

Statistical methods

Descriptive

5. Actual results

Results

Skin prick positive to lupine in 11 (44%); oral challenge positive in 7 of 8; major lupine allergen (43 kd) present in peanut.

Absolute risks

not reported

Authors' conclusion

Risk of crossed peanut-lupine allergy is high, unlike other legumes; lupine is a hidden allergen.

6. Strengths

  • Challenge-confirmed

7. Weaknesses

  • Small selected sample

8. Risk of bias

Orienting tool
none applicable
Type of assessment
simplified assessment (abstract only)
Full formal assessment
no
Overall risk of bias
some concerns
Rationale

Selected sample.

9. Assessment of the statistical interpretation

Descriptive.

10. Relevance to the specific claim

Supports allergy part of C-LEG-11 for allergic people.

11. Independent contrary findings

Same paper: cross-allergy to other legumes rare.

12. Transferability to Germany and Europe

High (lupin is labelled in EU).

13. Overall methodological judgement

Relevant only for peanut allergy.

Multidimensional assessment
Multidimensional assessment
Authenticity of the sourceverified
Methodological qualitymoderate
Risk of biassome concerns
Precision of resultslow
Directnessdirect
Reproducibilityreplicated
Consistency with the overall evidenceconsistent
Regional transferabilityhigh
Adequacy of the interpretation (by the archive)not applicable

14. Open questions

None.

15. Linked fact checks

Use by the Tayebat archive

Note: according to the archive, the studies were compiled by the archive operators. Whether Dr. Elawady himself cited this study is not established.

What the archive says about the study

Bibliography only.

A. What was actually studied?

Peanut-lupine cross-allergy.

B. What did the authors find?

High cross-reactivity in peanut-allergic patients.

C. What conclusions do the authors themselves draw?

Lupine labelling needed; cross-allergy to other legumes rare.

D. What does the archive derive from it?

Supports legume allergy concern.

E. Is this derivation scientifically justified?

Applies to peanut-allergic people only; the paper notes cross-allergy between legumes is otherwise rare.

Adequacy of the interpretation (by the archive)
not applicable